diff --git a/.gitignore b/.gitignore
index 6195f51..7d113fa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,3 +22,4 @@ backend/logs/
 deploy/.data/
 miniapp/miniprogram_npm/
 miniapp/private.*
+**/project.private.config.json
diff --git a/admin-web/src/api/groupBuyApi.test.ts b/admin-web/src/api/groupBuyApi.test.ts
index 3e1efa5..7e57c2b 100644
--- a/admin-web/src/api/groupBuyApi.test.ts
+++ b/admin-web/src/api/groupBuyApi.test.ts
@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest'
 import {
   buildGroupBuyOrderActionPath,
+  buildGroupBuyOrderQuery,
   filterPendingDeliveryGroupBuyOrders,
   groupBuyOrderDispatchLabel
 } from './groupBuyApi'
@@ -30,6 +31,18 @@ describe('group buy dispatch helpers', () => {
     expect(buildGroupBuyOrderActionPath(1, 'confirm')).toBe('/api/admin/group-buy-orders/1/confirm')
     expect(buildGroupBuyOrderActionPath(1, 'ready')).toBe('/api/admin/group-buy-orders/1/ready')
   })
+
+  it('builds group buy order page query params', () => {
+    expect(buildGroupBuyOrderQuery({
+      status: 'PENDING_CONFIRM',
+      pageNo: 2,
+      pageSize: 10
+    })).toEqual({
+      status: 'PENDING_CONFIRM',
+      pageNo: 2,
+      pageSize: 10
+    })
+  })
 })
 
 function groupBuyOrder(overrides: Partial<GroupBuyOrder>): GroupBuyOrder {
diff --git a/admin-web/src/api/groupBuyApi.ts b/admin-web/src/api/groupBuyApi.ts
index b6ecaad..ee55d03 100644
--- a/admin-web/src/api/groupBuyApi.ts
+++ b/admin-web/src/api/groupBuyApi.ts
@@ -1,4 +1,4 @@
-import type { GroupBuy, GroupBuyOrder } from '../types'
+import type { GroupBuy, GroupBuyOrder, PageResponse } from '../types'
 import { apiGet, apiPost, apiPut } from './http'
 
 export function listGroupBuys() {
@@ -9,6 +9,24 @@ export function listGroupBuyOrders(groupBuyId: number) {
   return apiGet<GroupBuyOrder[]>(`/api/admin/group-buys/${groupBuyId}/orders`)
 }
 
+export interface GroupBuyOrderQuery {
+  status?: string
+  pageNo?: number
+  pageSize?: number
+}
+
+export function buildGroupBuyOrderQuery(query: GroupBuyOrderQuery = {}) {
+  const params: Record<string, string | number> = {}
+  if (query.status) params.status = query.status
+  if (query.pageNo) params.pageNo = query.pageNo
+  if (query.pageSize) params.pageSize = query.pageSize
+  return params
+}
+
+export function pageGroupBuyOrders(groupBuyId: number, query: GroupBuyOrderQuery = {}) {
+  return apiGet<PageResponse<GroupBuyOrder>>(`/api/admin/group-buys/${groupBuyId}/orders/page`, buildGroupBuyOrderQuery(query))
+}
+
 export function filterPendingDeliveryGroupBuyOrders(orders: GroupBuyOrder[]) {
   return orders.filter((order) => order.status === 'PENDING_DELIVERY')
 }
diff --git a/admin-web/src/api/orderApi.test.ts b/admin-web/src/api/orderApi.test.ts
index 4734466..cae55e1 100644
--- a/admin-web/src/api/orderApi.test.ts
+++ b/admin-web/src/api/orderApi.test.ts
@@ -6,11 +6,15 @@ describe('buildGoodsOrderQuery', () => {
     expect(buildGoodsOrderQuery({
       status: 'PENDING_DELIVERY',
       startDate: '2026-07-01',
-      endDate: '2026-07-07'
+      endDate: '2026-07-07',
+      pageNo: 2,
+      pageSize: 20
     })).toEqual({
       status: 'PENDING_DELIVERY',
       startDate: '2026-07-01',
-      endDate: '2026-07-07'
+      endDate: '2026-07-07',
+      pageNo: 2,
+      pageSize: 20
     })
   })
 })
diff --git a/admin-web/src/api/orderApi.ts b/admin-web/src/api/orderApi.ts
index b47820e..2a4098a 100644
--- a/admin-web/src/api/orderApi.ts
+++ b/admin-web/src/api/orderApi.ts
@@ -1,17 +1,21 @@
-import type { ExpressOrder, GoodsOrder } from '../types'
+import type { ExpressOrder, GoodsOrder, PageResponse } from '../types'
 import { apiGet, apiPut } from './http'
 
 export interface GoodsOrderQuery {
   status?: string
   startDate?: string
   endDate?: string
+  pageNo?: number
+  pageSize?: number
 }
 
 export function buildGoodsOrderQuery(query: GoodsOrderQuery) {
-  const params: Record<string, string> = {}
+  const params: Record<string, string | number> = {}
   if (query.status) params.status = query.status
   if (query.startDate) params.startDate = query.startDate
   if (query.endDate) params.endDate = query.endDate
+  if (query.pageNo) params.pageNo = query.pageNo
+  if (query.pageSize) params.pageSize = query.pageSize
   return params
 }
 
@@ -19,6 +23,10 @@ export function listGoodsOrders(query: GoodsOrderQuery = {}) {
   return apiGet<GoodsOrder[]>('/api/admin/goods-orders', buildGoodsOrderQuery(query))
 }
 
+export function pageGoodsOrders(query: GoodsOrderQuery = {}) {
+  return apiGet<PageResponse<GoodsOrder>>('/api/admin/goods-orders/page', buildGoodsOrderQuery(query))
+}
+
 export function confirmGoodsOrder(id: number) {
   return apiPut<GoodsOrder>(`/api/admin/goods-orders/${id}/confirm`)
 }
@@ -28,17 +36,35 @@ export function markGoodsOrderPrepared(id: number) {
 }
 
 export function cancelGoodsOrder(id: number) {
-  return apiPut<GoodsOrder>(`/api/mini/goods-orders/${id}/cancel`)
+  return apiPut<GoodsOrder>(`/api/admin/goods-orders/${id}/cancel`)
 }
 
 export function markGoodsOrderPaid(id: number) {
   return apiPut<GoodsOrder>(`/api/admin/goods-orders/${id}/paid`)
 }
 
+export interface ExpressOrderQuery {
+  status?: string
+  pageNo?: number
+  pageSize?: number
+}
+
+export function buildExpressOrderQuery(query: ExpressOrderQuery = {}) {
+  const params: Record<string, string | number> = {}
+  if (query.status) params.status = query.status
+  if (query.pageNo) params.pageNo = query.pageNo
+  if (query.pageSize) params.pageSize = query.pageSize
+  return params
+}
+
 export function listExpressOrders(status?: string) {
   return apiGet<ExpressOrder[]>('/api/admin/express-orders', status ? { status } : undefined)
 }
 
+export function pageExpressOrders(query: ExpressOrderQuery = {}) {
+  return apiGet<PageResponse<ExpressOrder>>('/api/admin/express-orders/page', buildExpressOrderQuery(query))
+}
+
 export function confirmExpressOrder(id: number) {
   return apiPut<ExpressOrder>(`/api/admin/express-orders/${id}/confirm`)
 }
diff --git a/admin-web/src/api/productApi.test.ts b/admin-web/src/api/productApi.test.ts
new file mode 100644
index 0000000..3211a9a
--- /dev/null
+++ b/admin-web/src/api/productApi.test.ts
@@ -0,0 +1,20 @@
+import { describe, expect, it } from 'vitest'
+import { buildProductQuery } from './productApi'
+
+describe('buildProductQuery', () => {
+  it('keeps pagination and optional product filters stable', () => {
+    expect(buildProductQuery({
+      keyword: '苹果',
+      categoryId: 2,
+      merchantId: 1,
+      pageNo: 3,
+      pageSize: 10
+    })).toEqual({
+      keyword: '苹果',
+      categoryId: 2,
+      merchantId: 1,
+      pageNo: 3,
+      pageSize: 10
+    })
+  })
+})
diff --git a/admin-web/src/api/productApi.ts b/admin-web/src/api/productApi.ts
index ef453bf..b4f2044 100644
--- a/admin-web/src/api/productApi.ts
+++ b/admin-web/src/api/productApi.ts
@@ -1,8 +1,28 @@
-import type { Product, ProductCategory, ProductSku } from '../types'
+import type { PageResponse, Product, ProductCategory, ProductSku } from '../types'
 import { apiGet, apiPost, apiPut } from './http'
 
-export function listProducts() {
-  return apiGet<Product[]>('/api/admin/products')
+export interface ProductQuery {
+  keyword?: string
+  categoryId?: number
+  merchantId?: number
+  pageNo?: number
+  pageSize?: number
+}
+
+export function buildProductQuery(query: ProductQuery = {}) {
+  const params: Record<string, string | number> = {
+    pageNo: query.pageNo || 1,
+    pageSize: query.pageSize || 20
+  }
+  if (query.keyword) params.keyword = query.keyword
+  if (query.categoryId) params.categoryId = query.categoryId
+  if (query.merchantId) params.merchantId = query.merchantId
+  return params
+}
+
+export async function listProducts(query: ProductQuery = {}) {
+  const page = await apiGet<PageResponse<Product>>('/api/admin/products/page', buildProductQuery(query))
+  return page.records
 }
 
 export function createProduct(data: Partial<Product>) {
diff --git a/admin-web/src/styles.css b/admin-web/src/styles.css
index 41a8c8c..fae7628 100644
--- a/admin-web/src/styles.css
+++ b/admin-web/src/styles.css
@@ -140,3 +140,9 @@ body {
   display: inline-flex;
   gap: 8px;
 }
+
+.pagination-bar {
+  display: flex;
+  justify-content: flex-end;
+  padding-top: 14px;
+}
diff --git a/admin-web/src/types.ts b/admin-web/src/types.ts
index d494be5..2b00679 100644
--- a/admin-web/src/types.ts
+++ b/admin-web/src/types.ts
@@ -6,6 +6,13 @@ export interface CurrentUser {
   roleCode: string
 }
 
+export interface PageResponse<T> {
+  total: number
+  pageNo: number
+  pageSize: number
+  records: T[]
+}
+
 export interface ProductSku {
   id: number
   productId: number
diff --git a/admin-web/src/views/ExpressOrderListView.vue b/admin-web/src/views/ExpressOrderListView.vue
index f24bd60..27554b6 100644
--- a/admin-web/src/views/ExpressOrderListView.vue
+++ b/admin-web/src/views/ExpressOrderListView.vue
@@ -6,7 +6,7 @@ import {
   adjustExpressFee,
   cancelExpressOrder,
   confirmExpressOrder,
-  listExpressOrders,
+  pageExpressOrders,
   updateExpressPayStatus
 } from '../api/orderApi'
 import type { ExpressOrder } from '../types'
@@ -15,11 +15,18 @@ import { statusText, yuan } from '../utils/format'
 const loading = ref(false)
 const rows = ref<ExpressOrder[]>([])
 const filters = reactive({ status: '' })
+const pagination = reactive({ pageNo: 1, pageSize: 10, total: 0 })
 
 async function load() {
   loading.value = true
   try {
-    rows.value = await listExpressOrders(filters.status || undefined)
+    const page = await pageExpressOrders({
+      status: filters.status || undefined,
+      pageNo: pagination.pageNo,
+      pageSize: pagination.pageSize
+    })
+    rows.value = page.records
+    pagination.total = page.total
   } catch (error) {
     ElMessage.error(error instanceof Error ? error.message : '加载失败')
   } finally {
@@ -27,6 +34,17 @@ async function load() {
   }
 }
 
+function search() {
+  pagination.pageNo = 1
+  load()
+}
+
+function changeSize(size: number) {
+  pagination.pageSize = size
+  pagination.pageNo = 1
+  load()
+}
+
 async function run(action: () => Promise<ExpressOrder>) {
   try {
     await action()
@@ -63,7 +81,7 @@ onMounted(load)
         <el-option label="配送中" value="DELIVERING" />
         <el-option label="已完成" value="COMPLETED" />
       </el-select>
-      <el-button type="primary" :icon="Search" :loading="loading" @click="load">查询</el-button>
+      <el-button type="primary" :icon="Search" :loading="loading" @click="search">查询</el-button>
       <el-button :icon="Refresh" @click="load">刷新</el-button>
     </div>
     <el-table :data="rows" border v-loading="loading">
@@ -88,5 +106,16 @@ onMounted(load)
         </template>
       </el-table-column>
     </el-table>
+    <div class="pagination-bar">
+      <el-pagination
+        v-model:current-page="pagination.pageNo"
+        :page-size="pagination.pageSize"
+        :page-sizes="[10, 20, 50]"
+        :total="pagination.total"
+        layout="total, sizes, prev, pager, next"
+        @current-change="load"
+        @size-change="changeSize"
+      />
+    </div>
   </div>
 </template>
diff --git a/admin-web/src/views/GoodsOrderListView.vue b/admin-web/src/views/GoodsOrderListView.vue
index 7d28e8e..6232309 100644
--- a/admin-web/src/views/GoodsOrderListView.vue
+++ b/admin-web/src/views/GoodsOrderListView.vue
@@ -5,9 +5,9 @@ import { ElMessage } from 'element-plus'
 import {
   cancelGoodsOrder,
   confirmGoodsOrder,
-  listGoodsOrders,
   markGoodsOrderPaid,
-  markGoodsOrderPrepared
+  markGoodsOrderPrepared,
+  pageGoodsOrders
 } from '../api/orderApi'
 import type { GoodsOrder } from '../types'
 import { statusText, yuan } from '../utils/format'
@@ -15,11 +15,18 @@ import { statusText, yuan } from '../utils/format'
 const loading = ref(false)
 const rows = ref<GoodsOrder[]>([])
 const filters = reactive({ status: '' })
+const pagination = reactive({ pageNo: 1, pageSize: 10, total: 0 })
 
 async function load() {
   loading.value = true
   try {
-    rows.value = await listGoodsOrders({ status: filters.status || undefined })
+    const page = await pageGoodsOrders({
+      status: filters.status || undefined,
+      pageNo: pagination.pageNo,
+      pageSize: pagination.pageSize
+    })
+    rows.value = page.records
+    pagination.total = page.total
   } catch (error) {
     ElMessage.error(error instanceof Error ? error.message : '加载失败')
   } finally {
@@ -27,6 +34,17 @@ async function load() {
   }
 }
 
+function search() {
+  pagination.pageNo = 1
+  load()
+}
+
+function changeSize(size: number) {
+  pagination.pageSize = size
+  pagination.pageNo = 1
+  load()
+}
+
 async function run(action: () => Promise<GoodsOrder>) {
   try {
     await action()
@@ -51,7 +69,7 @@ onMounted(load)
         <el-option label="配送中" value="DELIVERING" />
         <el-option label="已完成" value="COMPLETED" />
       </el-select>
-      <el-button type="primary" :icon="Search" :loading="loading" @click="load">查询</el-button>
+      <el-button type="primary" :icon="Search" :loading="loading" @click="search">查询</el-button>
       <el-button :icon="Refresh" @click="load">刷新</el-button>
     </div>
     <el-table :data="rows" border v-loading="loading">
@@ -79,5 +97,16 @@ onMounted(load)
         </template>
       </el-table-column>
     </el-table>
+    <div class="pagination-bar">
+      <el-pagination
+        v-model:current-page="pagination.pageNo"
+        :page-size="pagination.pageSize"
+        :page-sizes="[10, 20, 50]"
+        :total="pagination.total"
+        layout="total, sizes, prev, pager, next"
+        @current-change="load"
+        @size-change="changeSize"
+      />
+    </div>
   </div>
 </template>
diff --git a/admin-web/src/views/GroupBuyListView.vue b/admin-web/src/views/GroupBuyListView.vue
index 5294255..637904b 100644
--- a/admin-web/src/views/GroupBuyListView.vue
+++ b/admin-web/src/views/GroupBuyListView.vue
@@ -7,9 +7,9 @@ import {
   completeGroupBuy,
   confirmGroupBuyOrder,
   createGroupBuy,
-  listGroupBuyOrders,
   listGroupBuys,
   markGroupBuyOrderReady,
+  pageGroupBuyOrders,
   startGroupBuy
 } from '../api/groupBuyApi'
 import type { GroupBuy, GroupBuyOrder } from '../types'
@@ -22,6 +22,7 @@ const orders = ref<GroupBuyOrder[]>([])
 const activeGroupBuy = ref<GroupBuy | null>(null)
 const dialog = ref(false)
 const orderDialog = ref(false)
+const orderPagination = reactive({ pageNo: 1, pageSize: 10, total: 0 })
 const form = reactive({
   title: '',
   coverUrl: '',
@@ -46,6 +47,7 @@ async function load() {
 
 async function openOrders(row: GroupBuy) {
   activeGroupBuy.value = row
+  orderPagination.pageNo = 1
   orderDialog.value = true
   await loadOrders(row.id)
 }
@@ -54,7 +56,12 @@ async function loadOrders(groupBuyId = activeGroupBuy.value?.id) {
   if (!groupBuyId) return
   orderLoading.value = true
   try {
-    orders.value = await listGroupBuyOrders(groupBuyId)
+    const page = await pageGroupBuyOrders(groupBuyId, {
+      pageNo: orderPagination.pageNo,
+      pageSize: orderPagination.pageSize
+    })
+    orders.value = page.records
+    orderPagination.total = page.total
   } catch (error) {
     ElMessage.error(error instanceof Error ? error.message : '加载失败')
   } finally {
@@ -62,6 +69,12 @@ async function loadOrders(groupBuyId = activeGroupBuy.value?.id) {
   }
 }
 
+function changeOrderSize(size: number) {
+  orderPagination.pageSize = size
+  orderPagination.pageNo = 1
+  loadOrders()
+}
+
 async function save() {
   try {
     await createGroupBuy(form)
@@ -153,6 +166,17 @@ onMounted(load)
         </template>
       </el-table-column>
     </el-table>
+    <div class="pagination-bar">
+      <el-pagination
+        v-model:current-page="orderPagination.pageNo"
+        :page-size="orderPagination.pageSize"
+        :page-sizes="[10, 20, 50]"
+        :total="orderPagination.total"
+        layout="total, sizes, prev, pager, next"
+        @current-change="loadOrders()"
+        @size-change="changeOrderSize"
+      />
+    </div>
   </el-dialog>
 
   <el-dialog v-model="dialog" title="新建团购" width="560px">
diff --git a/admin-web/src/views/ProductListView.vue b/admin-web/src/views/ProductListView.vue
index 11c7bdf..9a198ed 100644
--- a/admin-web/src/views/ProductListView.vue
+++ b/admin-web/src/views/ProductListView.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { onMounted, reactive, ref } from 'vue'
-import { Check, Edit, Plus, Refresh, Upload } from '@element-plus/icons-vue'
+import { Check, Edit, Plus, Refresh, Search, Upload } from '@element-plus/icons-vue'
 import { ElMessage } from 'element-plus'
 import {
   addSku,
@@ -17,6 +17,7 @@ import { statusText, yuan } from '../utils/format'
 const loading = ref(false)
 const products = ref<Product[]>([])
 const categories = ref<ProductCategory[]>([])
+const keyword = ref('')
 const productDialog = ref(false)
 const categoryDialog = ref(false)
 const skuDialog = ref(false)
@@ -28,7 +29,10 @@ const skuForm = reactive({ skuName: '', priceCent: 0, originPriceCent: undefined
 async function load() {
   loading.value = true
   try {
-    const [productRows, categoryRows] = await Promise.all([listProducts(), listProductCategories()])
+    const [productRows, categoryRows] = await Promise.all([
+      listProducts({ keyword: keyword.value.trim() || undefined }),
+      listProductCategories()
+    ])
     products.value = productRows
     categories.value = categoryRows
     if (!productForm.categoryId && categoryRows[0]) {
@@ -99,6 +103,15 @@ onMounted(load)
   <h1 class="page-title">商品管理</h1>
   <div class="panel">
     <div class="toolbar">
+      <el-input
+        v-model="keyword"
+        clearable
+        placeholder="搜索商品"
+        style="width: 220px"
+        @keyup.enter="load"
+        @clear="load"
+      />
+      <el-button :icon="Search" :loading="loading" @click="load">搜索</el-button>
       <el-button type="primary" :icon="Plus" @click="productDialog = true">新建商品</el-button>
       <el-button :icon="Plus" @click="categoryDialog = true">新建分类</el-button>
       <el-button :icon="Refresh" :loading="loading" @click="load">刷新</el-button>
diff --git a/backend/src/main/java/com/linhelp/common/api/PageUtils.java b/backend/src/main/java/com/linhelp/common/api/PageUtils.java
new file mode 100644
index 0000000..14dece7
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/api/PageUtils.java
@@ -0,0 +1,22 @@
+package com.linhelp.common.api;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public final class PageUtils {
+    private static final int DEFAULT_PAGE_NO = 1;
+    private static final int DEFAULT_PAGE_SIZE = 20;
+    private static final int MAX_PAGE_SIZE = 100;
+
+    private PageUtils() {
+    }
+
+    public static <T> PageResponse<T> page(List<T> records, Integer pageNo, Integer pageSize) {
+        int safePageNo = pageNo == null || pageNo < 1 ? DEFAULT_PAGE_NO : pageNo;
+        int safePageSize = pageSize == null || pageSize < 1 ? DEFAULT_PAGE_SIZE : Math.min(pageSize, MAX_PAGE_SIZE);
+        int total = records.size();
+        int fromIndex = Math.min((safePageNo - 1) * safePageSize, total);
+        int toIndex = Math.min(fromIndex + safePageSize, total);
+        return new PageResponse<T>(total, safePageNo, safePageSize, new ArrayList<T>(records.subList(fromIndex, toIndex)));
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/AuthController.java b/backend/src/main/java/com/linhelp/common/security/AuthController.java
index d7f991b..5fde4c8 100644
--- a/backend/src/main/java/com/linhelp/common/security/AuthController.java
+++ b/backend/src/main/java/com/linhelp/common/security/AuthController.java
@@ -30,6 +30,11 @@ public class AuthController {
         return ApiResponse.ok(authService.devMiniappLogin(request));
     }
 
+    @PostMapping("/miniapp-login")
+    public ApiResponse<LoginResponse> miniappLogin(@Valid @RequestBody MiniappLoginRequest request) {
+        return ApiResponse.ok(authService.miniappLogin(request));
+    }
+
     @PostMapping("/logout")
     public ApiResponse<Void> logout() {
         authService.logout();
diff --git a/backend/src/main/java/com/linhelp/common/security/AuthProperties.java b/backend/src/main/java/com/linhelp/common/security/AuthProperties.java
new file mode 100644
index 0000000..3fa7ac5
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/AuthProperties.java
@@ -0,0 +1,24 @@
+package com.linhelp.common.security;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+@Component
+public class AuthProperties {
+    private final boolean demoAdminEnabled;
+    private final boolean devMiniappLoginEnabled;
+
+    public AuthProperties(@Value("${linhelp.auth.demo-admin-enabled:false}") boolean demoAdminEnabled,
+                          @Value("${linhelp.auth.dev-miniapp-login-enabled:false}") boolean devMiniappLoginEnabled) {
+        this.demoAdminEnabled = demoAdminEnabled;
+        this.devMiniappLoginEnabled = devMiniappLoginEnabled;
+    }
+
+    public boolean isDemoAdminEnabled() {
+        return demoAdminEnabled;
+    }
+
+    public boolean isDevMiniappLoginEnabled() {
+        return devMiniappLoginEnabled;
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/AuthService.java b/backend/src/main/java/com/linhelp/common/security/AuthService.java
index 3605e78..7cad60a 100644
--- a/backend/src/main/java/com/linhelp/common/security/AuthService.java
+++ b/backend/src/main/java/com/linhelp/common/security/AuthService.java
@@ -2,35 +2,119 @@ package com.linhelp.common.security;
 
 import cn.dev33.satoken.stp.StpUtil;
 import com.linhelp.common.exception.BizException;
+import com.linhelp.common.security.account.AdminAccount;
+import com.linhelp.common.security.account.AdminAccountRepository;
+import com.linhelp.common.security.account.PasswordHasher;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.atomic.AtomicLong;
 
 @Service
 public class AuthService {
     private static final Long DEFAULT_TENANT_ID = 1L;
     private static final Long DEFAULT_COMMUNITY_ID = 1L;
     private final Map<String, DemoAccount> demoAccounts = new HashMap<String, DemoAccount>();
+    private final Map<String, Long> miniappUsers = new HashMap<String, Long>();
+    private final AtomicLong miniappUserIds = new AtomicLong(1000L);
+    private final MiniappSessionClient miniappSessionClient;
+    private final LoginSessionIssuer loginSessionIssuer;
+    private final boolean demoAdminEnabled;
+    private final boolean devMiniappLoginEnabled;
+    private final AdminAccountRepository adminAccountRepository;
+    private final PasswordHasher passwordHasher;
 
-    public AuthService() {
+    @Autowired
+    public AuthService(MiniappSessionClient miniappSessionClient,
+                       LoginSessionIssuer loginSessionIssuer,
+                       AuthProperties authProperties,
+                       ObjectProvider<AdminAccountRepository> adminAccountRepositoryProvider,
+                       PasswordHasher passwordHasher) {
+        this(miniappSessionClient,
+                loginSessionIssuer,
+                authProperties.isDemoAdminEnabled(),
+                authProperties.isDevMiniappLoginEnabled(),
+                adminAccountRepositoryProvider.getIfAvailable(),
+                passwordHasher);
+    }
+
+    protected AuthService() {
+        this(new MiniappSessionClient() {
+            @Override
+            public String resolveOpenId(String code) {
+                return "test-openid";
+            }
+        }, new SaTokenLoginSessionIssuer(), true, true, null, new PasswordHasher());
+    }
+
+    public AuthService(MiniappSessionClient miniappSessionClient,
+                       LoginSessionIssuer loginSessionIssuer,
+                       boolean demoAdminEnabled,
+                       boolean devMiniappLoginEnabled) {
+        this(miniappSessionClient, loginSessionIssuer, demoAdminEnabled, devMiniappLoginEnabled, null, new PasswordHasher());
+    }
+
+    public AuthService(MiniappSessionClient miniappSessionClient,
+                       LoginSessionIssuer loginSessionIssuer,
+                       boolean demoAdminEnabled,
+                       boolean devMiniappLoginEnabled,
+                       AdminAccountRepository adminAccountRepository,
+                       PasswordHasher passwordHasher) {
+        this.miniappSessionClient = miniappSessionClient;
+        this.loginSessionIssuer = loginSessionIssuer;
+        this.demoAdminEnabled = demoAdminEnabled;
+        this.devMiniappLoginEnabled = devMiniappLoginEnabled;
+        this.adminAccountRepository = adminAccountRepository;
+        this.passwordHasher = passwordHasher;
         demoAccounts.put("admin", new DemoAccount(1L, "admin123", "COMMUNITY_ADMIN"));
         demoAccounts.put("merchant", new DemoAccount(2L, "merchant123", "MERCHANT"));
         demoAccounts.put("rider", new DemoAccount(3L, "rider123", "RIDER"));
     }
 
     public LoginResponse adminLogin(LoginRequest request) {
+        Optional<AdminAccount> storedAccount = findStoredAccount(request.getUsername());
+        if (storedAccount.isPresent()) {
+            AdminAccount account = storedAccount.get();
+            if (!account.isEnabled()) {
+                throw new BizException(401, "admin account disabled");
+            }
+            if (!passwordHasher.matches(request.getPassword(), account.getPasswordHash())) {
+                throw new BizException(401, "username or password is incorrect");
+            }
+            return login(account.getUserId(), account.getTenantId(), account.getCommunityId(), account.getRoleCode());
+        }
+
+        if (!demoAdminEnabled) {
+            throw new BizException("demo admin login is disabled");
+        }
         DemoAccount account = demoAccounts.get(request.getUsername());
         if (account == null || !account.password.equals(request.getPassword())) {
-            throw new BizException(401, "账号或密码错误");
+            throw new BizException(401, "username or password is incorrect");
         }
         return login(account.userId, account.roleCode);
     }
 
     public LoginResponse devMiniappLogin(LoginRequest request) {
+        if (!devMiniappLoginEnabled) {
+            throw new BizException("dev miniapp login is disabled");
+        }
         return login(1000L, "RESIDENT");
     }
 
+    public synchronized LoginResponse miniappLogin(MiniappLoginRequest request) {
+        String openId = miniappSessionClient.resolveOpenId(request.getCode());
+        Long userId = miniappUsers.get(openId);
+        if (userId == null) {
+            userId = miniappUserIds.getAndIncrement();
+            miniappUsers.put(openId, userId);
+        }
+        return login(userId, "RESIDENT");
+    }
+
     public CurrentUser currentUser() {
         StpUtil.checkLogin();
         return new CurrentUser(
@@ -46,11 +130,18 @@ public class AuthService {
     }
 
     private LoginResponse login(Long userId, String roleCode) {
-        StpUtil.login(userId);
-        StpUtil.getSession().set("tenantId", DEFAULT_TENANT_ID);
-        StpUtil.getSession().set("communityId", DEFAULT_COMMUNITY_ID);
-        StpUtil.getSession().set("roleCode", roleCode);
-        return new LoginResponse(StpUtil.getTokenValue(), userId, DEFAULT_TENANT_ID, DEFAULT_COMMUNITY_ID, roleCode);
+        return login(userId, DEFAULT_TENANT_ID, DEFAULT_COMMUNITY_ID, roleCode);
+    }
+
+    private LoginResponse login(Long userId, Long tenantId, Long communityId, String roleCode) {
+        return loginSessionIssuer.issue(userId, tenantId, communityId, roleCode);
+    }
+
+    private Optional<AdminAccount> findStoredAccount(String username) {
+        if (adminAccountRepository == null) {
+            return Optional.empty();
+        }
+        return adminAccountRepository.findByUsername(username);
     }
 
     private static class DemoAccount {
diff --git a/backend/src/main/java/com/linhelp/common/security/LoginSessionIssuer.java b/backend/src/main/java/com/linhelp/common/security/LoginSessionIssuer.java
new file mode 100644
index 0000000..363da81
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/LoginSessionIssuer.java
@@ -0,0 +1,5 @@
+package com.linhelp.common.security;
+
+public interface LoginSessionIssuer {
+    LoginResponse issue(Long userId, Long tenantId, Long communityId, String roleCode);
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/MiniappLoginRequest.java b/backend/src/main/java/com/linhelp/common/security/MiniappLoginRequest.java
new file mode 100644
index 0000000..ba0f631
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/MiniappLoginRequest.java
@@ -0,0 +1,16 @@
+package com.linhelp.common.security;
+
+import javax.validation.constraints.NotBlank;
+
+public class MiniappLoginRequest {
+    @NotBlank(message = "登录凭证不能为空")
+    private String code;
+
+    public String getCode() {
+        return code;
+    }
+
+    public void setCode(String code) {
+        this.code = code;
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/MiniappSessionClient.java b/backend/src/main/java/com/linhelp/common/security/MiniappSessionClient.java
new file mode 100644
index 0000000..c59a42a
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/MiniappSessionClient.java
@@ -0,0 +1,5 @@
+package com.linhelp.common.security;
+
+public interface MiniappSessionClient {
+    String resolveOpenId(String code);
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/SaTokenLoginSessionIssuer.java b/backend/src/main/java/com/linhelp/common/security/SaTokenLoginSessionIssuer.java
new file mode 100644
index 0000000..858d13c
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/SaTokenLoginSessionIssuer.java
@@ -0,0 +1,16 @@
+package com.linhelp.common.security;
+
+import cn.dev33.satoken.stp.StpUtil;
+import org.springframework.stereotype.Component;
+
+@Component
+public class SaTokenLoginSessionIssuer implements LoginSessionIssuer {
+    @Override
+    public LoginResponse issue(Long userId, Long tenantId, Long communityId, String roleCode) {
+        StpUtil.login(userId);
+        StpUtil.getSession().set("tenantId", tenantId);
+        StpUtil.getSession().set("communityId", communityId);
+        StpUtil.getSession().set("roleCode", roleCode);
+        return new LoginResponse(StpUtil.getTokenValue(), userId, tenantId, communityId, roleCode);
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/WechatMiniappSessionClient.java b/backend/src/main/java/com/linhelp/common/security/WechatMiniappSessionClient.java
new file mode 100644
index 0000000..ac0bea4
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/WechatMiniappSessionClient.java
@@ -0,0 +1,47 @@
+package com.linhelp.common.security;
+
+import com.linhelp.common.exception.BizException;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import java.util.Map;
+
+@Component
+public class WechatMiniappSessionClient implements MiniappSessionClient {
+    private static final String JSCODE2SESSION_URL = "https://api.weixin.qq.com/sns/jscode2session";
+
+    private final RestTemplate restTemplate = new RestTemplate();
+    private final String appId;
+    private final String appSecret;
+
+    public WechatMiniappSessionClient(@Value("${linhelp.wechat.miniapp.app-id:}") String appId,
+                                      @Value("${linhelp.wechat.miniapp.app-secret:}") String appSecret) {
+        this.appId = appId;
+        this.appSecret = appSecret;
+    }
+
+    @Override
+    public String resolveOpenId(String code) {
+        if (isBlank(appId) || isBlank(appSecret)) {
+            throw new BizException("微信小程序配置未完成");
+        }
+        String url = UriComponentsBuilder.fromHttpUrl(JSCODE2SESSION_URL)
+                .queryParam("appid", appId)
+                .queryParam("secret", appSecret)
+                .queryParam("js_code", code)
+                .queryParam("grant_type", "authorization_code")
+                .toUriString();
+        Map response = restTemplate.getForObject(url, Map.class);
+        if (response == null || response.get("openid") == null) {
+            Object message = response == null ? null : response.get("errmsg");
+            throw new BizException(message == null ? "微信登录失败" : String.valueOf(message));
+        }
+        return String.valueOf(response.get("openid"));
+    }
+
+    private boolean isBlank(String value) {
+        return value == null || value.trim().isEmpty();
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/account/AdminAccount.java b/backend/src/main/java/com/linhelp/common/security/account/AdminAccount.java
new file mode 100644
index 0000000..0dda012
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/account/AdminAccount.java
@@ -0,0 +1,55 @@
+package com.linhelp.common.security.account;
+
+public class AdminAccount {
+    private final Long userId;
+    private final Long tenantId;
+    private final Long communityId;
+    private final String username;
+    private final String passwordHash;
+    private final String roleCode;
+    private final boolean enabled;
+
+    public AdminAccount(Long userId,
+                        Long tenantId,
+                        Long communityId,
+                        String username,
+                        String passwordHash,
+                        String roleCode,
+                        boolean enabled) {
+        this.userId = userId;
+        this.tenantId = tenantId;
+        this.communityId = communityId;
+        this.username = username;
+        this.passwordHash = passwordHash;
+        this.roleCode = roleCode;
+        this.enabled = enabled;
+    }
+
+    public Long getUserId() {
+        return userId;
+    }
+
+    public Long getTenantId() {
+        return tenantId;
+    }
+
+    public Long getCommunityId() {
+        return communityId;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public String getPasswordHash() {
+        return passwordHash;
+    }
+
+    public String getRoleCode() {
+        return roleCode;
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/account/AdminAccountRepository.java b/backend/src/main/java/com/linhelp/common/security/account/AdminAccountRepository.java
new file mode 100644
index 0000000..9d37e15
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/account/AdminAccountRepository.java
@@ -0,0 +1,7 @@
+package com.linhelp.common.security.account;
+
+import java.util.Optional;
+
+public interface AdminAccountRepository {
+    Optional<AdminAccount> findByUsername(String username);
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/account/JdbcAdminAccountRepository.java b/backend/src/main/java/com/linhelp/common/security/account/JdbcAdminAccountRepository.java
new file mode 100644
index 0000000..74069ae
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/account/JdbcAdminAccountRepository.java
@@ -0,0 +1,46 @@
+package com.linhelp.common.security.account;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.dao.EmptyResultDataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Optional;
+
+@Repository
+@ConditionalOnBean(JdbcTemplate.class)
+public class JdbcAdminAccountRepository implements AdminAccountRepository {
+    private final JdbcTemplate jdbcTemplate;
+
+    public JdbcAdminAccountRepository(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @Override
+    public Optional<AdminAccount> findByUsername(String username) {
+        try {
+            return Optional.of(jdbcTemplate.queryForObject(
+                    "SELECT user_id, tenant_id, community_id, username, password_hash, role_code, enabled " +
+                            "FROM admin_user WHERE username = ? AND deleted = 0",
+                    this::mapAccount,
+                    username
+            ));
+        } catch (EmptyResultDataAccessException ex) {
+            return Optional.empty();
+        }
+    }
+
+    private AdminAccount mapAccount(ResultSet rs, int rowNum) throws SQLException {
+        return new AdminAccount(
+                rs.getLong("user_id"),
+                rs.getLong("tenant_id"),
+                rs.getLong("community_id"),
+                rs.getString("username"),
+                rs.getString("password_hash"),
+                rs.getString("role_code"),
+                rs.getBoolean("enabled")
+        );
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/common/security/account/PasswordHasher.java b/backend/src/main/java/com/linhelp/common/security/account/PasswordHasher.java
new file mode 100644
index 0000000..96a7075
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/common/security/account/PasswordHasher.java
@@ -0,0 +1,63 @@
+package com.linhelp.common.security.account;
+
+import org.springframework.stereotype.Component;
+
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.spec.PBEKeySpec;
+import java.security.MessageDigest;
+import java.security.SecureRandom;
+import java.util.Base64;
+
+@Component
+public class PasswordHasher {
+    private static final String ALGORITHM = "PBKDF2WithHmacSHA256";
+    private static final String PREFIX = "pbkdf2_sha256";
+    private static final int ITERATIONS = 60000;
+    private static final int SALT_BYTES = 16;
+    private static final int HASH_BITS = 256;
+    private final SecureRandom secureRandom = new SecureRandom();
+
+    public String hash(String password) {
+        byte[] salt = new byte[SALT_BYTES];
+        secureRandom.nextBytes(salt);
+        byte[] hash = pbkdf2(password, salt, ITERATIONS);
+        return PREFIX + "$" + ITERATIONS + "$" + encode(salt) + "$" + encode(hash);
+    }
+
+    public boolean matches(String password, String encoded) {
+        if (password == null || encoded == null) {
+            return false;
+        }
+        String[] parts = encoded.split("\\$");
+        if (parts.length != 4 || !PREFIX.equals(parts[0])) {
+            return false;
+        }
+        try {
+            int iterations = Integer.parseInt(parts[1]);
+            byte[] salt = decode(parts[2]);
+            byte[] expected = decode(parts[3]);
+            byte[] actual = pbkdf2(password, salt, iterations);
+            return MessageDigest.isEqual(expected, actual);
+        } catch (RuntimeException ex) {
+            return false;
+        }
+    }
+
+    private byte[] pbkdf2(String password, byte[] salt, int iterations) {
+        try {
+            PBEKeySpec spec = new PBEKeySpec(password.toCharArray(), salt, iterations, HASH_BITS);
+            SecretKeyFactory factory = SecretKeyFactory.getInstance(ALGORITHM);
+            return factory.generateSecret(spec).getEncoded();
+        } catch (Exception ex) {
+            throw new IllegalStateException("Could not hash password", ex);
+        }
+    }
+
+    private String encode(byte[] value) {
+        return Base64.getEncoder().encodeToString(value);
+    }
+
+    private byte[] decode(String value) {
+        return Base64.getDecoder().decode(value);
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/delivery/DeliveryAdminController.java b/backend/src/main/java/com/linhelp/delivery/DeliveryAdminController.java
index f8e759b..a1a6a62 100644
--- a/backend/src/main/java/com/linhelp/delivery/DeliveryAdminController.java
+++ b/backend/src/main/java/com/linhelp/delivery/DeliveryAdminController.java
@@ -65,12 +65,14 @@ public class DeliveryAdminController {
 
     @PostMapping("/api/admin/delivery-orders/assign-goods-order")
     public ApiResponse<DeliveryOrderResponse> assignGoodsOrder(@Valid @RequestBody DeliveryAssignRequest request) {
-        return ApiResponse.ok(assignmentService.assignGoodsOrder(request.getOrderId(), request.getRiderId()));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(assignmentService.assignGoodsOrder(user.getCommunityId(), request.getOrderId(), request.getRiderId()));
     }
 
     @PostMapping("/api/admin/delivery-orders/assign-express-order")
     public ApiResponse<DeliveryOrderResponse> assignExpressOrder(@Valid @RequestBody DeliveryAssignRequest request) {
-        return ApiResponse.ok(assignmentService.assignExpressOrder(request.getOrderId(), request.getRiderId()));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(assignmentService.assignExpressOrder(user.getCommunityId(), request.getOrderId(), request.getRiderId()));
     }
 
     @PostMapping("/api/admin/delivery-orders/assign-group-buy-order")
@@ -87,6 +89,7 @@ public class DeliveryAdminController {
 
     @GetMapping("/api/admin/delivery-orders/{id}")
     public ApiResponse<DeliveryOrderResponse> taskDetail(@PathVariable Long id) {
-        return ApiResponse.ok(assignmentService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(assignmentService.detailAdmin(user.getCommunityId(), id));
     }
 }
diff --git a/backend/src/main/java/com/linhelp/delivery/DeliveryAssignmentService.java b/backend/src/main/java/com/linhelp/delivery/DeliveryAssignmentService.java
index b7e7488..de4b43a 100644
--- a/backend/src/main/java/com/linhelp/delivery/DeliveryAssignmentService.java
+++ b/backend/src/main/java/com/linhelp/delivery/DeliveryAssignmentService.java
@@ -50,8 +50,14 @@ public class DeliveryAssignmentService {
     }
 
     public synchronized DeliveryOrderResponse assignGoodsOrder(Long goodsOrderId, Long riderId) {
-        DeliveryUserResponse rider = deliveryUserService.requireEnabled(riderId);
         GoodsOrderResponse order = goodsOrderService.detail(goodsOrderId);
+        return assignGoodsOrder(order.getCommunityId(), goodsOrderId, riderId);
+    }
+
+    public synchronized DeliveryOrderResponse assignGoodsOrder(Long communityId, Long goodsOrderId, Long riderId) {
+        DeliveryUserResponse rider = deliveryUserService.requireEnabled(riderId);
+        GoodsOrderResponse order = goodsOrderService.detailAdmin(communityId, goodsOrderId);
+        requireRiderInCommunity(rider, order.getCommunityId());
         if (DeliveryMethod.SELF_PICKUP.equals(order.getDeliveryMethod())) {
             throw new BizException("自提订单无需派单");
         }
@@ -74,8 +80,17 @@ public class DeliveryAssignmentService {
         if (expressOrderService == null) {
             throw new BizException("快递代取服务未启用");
         }
-        DeliveryUserResponse rider = deliveryUserService.requireEnabled(riderId);
         ExpressOrderResponse order = expressOrderService.detail(expressOrderId);
+        return assignExpressOrder(order.getCommunityId(), expressOrderId, riderId);
+    }
+
+    public synchronized DeliveryOrderResponse assignExpressOrder(Long communityId, Long expressOrderId, Long riderId) {
+        if (expressOrderService == null) {
+            throw new BizException("快递代取服务未启用");
+        }
+        DeliveryUserResponse rider = deliveryUserService.requireEnabled(riderId);
+        ExpressOrderResponse order = expressOrderService.detailAdmin(communityId, expressOrderId);
+        requireRiderInCommunity(rider, order.getCommunityId());
         if (ExpressOrderStatus.PENDING_PICKUP != order.getStatus()) {
             throw new BizException("快递订单未待取件");
         }
@@ -95,10 +110,8 @@ public class DeliveryAssignmentService {
 
     public synchronized DeliveryOrderResponse assignGroupBuyOrder(Long communityId, Long groupBuyOrderId, Long riderId) {
         DeliveryUserResponse rider = deliveryUserService.requireEnabled(riderId);
-        GroupBuyOrderResponse order = groupBuyOrderService.detail(groupBuyOrderId);
-        if (!communityId.equals(order.getCommunityId())) {
-            throw new BizException(404, "团购订单不存在");
-        }
+        GroupBuyOrderResponse order = groupBuyOrderService.detailAdmin(communityId, groupBuyOrderId);
+        requireRiderInCommunity(rider, order.getCommunityId());
         if (DeliveryMethod.SELF_PICKUP.equals(order.getDeliveryMethod())) {
             throw new BizException("自提订单无需派单");
         }
@@ -135,6 +148,14 @@ public class DeliveryAssignmentService {
         return copy(require(id));
     }
 
+    public synchronized DeliveryOrderResponse detailAdmin(Long communityId, Long id) {
+        DeliveryOrderResponse task = require(id);
+        if (!communityId.equals(task.getCommunityId())) {
+            throw new BizException(404, "配送任务不存在");
+        }
+        return copy(task);
+    }
+
     public synchronized List<DeliveryOrderResponse> listRiderTasks(Long riderId) {
         List<DeliveryOrderResponse> result = new ArrayList<DeliveryOrderResponse>();
         for (DeliveryOrderResponse task : tasks.values()) {
@@ -182,6 +203,12 @@ public class DeliveryAssignmentService {
         }
     }
 
+    private void requireRiderInCommunity(DeliveryUserResponse rider, Long communityId) {
+        if (!communityId.equals(rider.getCommunityId())) {
+            throw new BizException(404, "配送员不存在");
+        }
+    }
+
     private void enrichAddressContact(DeliveryOrderResponse task, Long userId, Long addressId) {
         if (addressId == null) {
             return;
diff --git a/backend/src/main/java/com/linhelp/express/ExpressOrderController.java b/backend/src/main/java/com/linhelp/express/ExpressOrderController.java
index 174339f..98d9157 100644
--- a/backend/src/main/java/com/linhelp/express/ExpressOrderController.java
+++ b/backend/src/main/java/com/linhelp/express/ExpressOrderController.java
@@ -1,6 +1,7 @@
 package com.linhelp.express;
 
 import com.linhelp.common.api.ApiResponse;
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.ExpressOrderStatus;
 import com.linhelp.common.security.AuthService;
 import com.linhelp.common.security.CurrentUser;
@@ -42,17 +43,20 @@ public class ExpressOrderController {
 
     @GetMapping("/api/mini/express-orders/{id}")
     public ApiResponse<ExpressOrderResponse> miniDetail(@PathVariable Long id) {
-        return ApiResponse.ok(expressOrderService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.detailMine(user.getUserId(), id));
     }
 
     @PutMapping("/api/mini/express-orders/{id}/cancel")
     public ApiResponse<ExpressOrderResponse> miniCancel(@PathVariable Long id, @RequestBody(required = false) ExpressCancelRequest request) {
-        return ApiResponse.ok(expressOrderService.cancel(id, request == null ? null : request.getReason()));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.cancelMine(user.getUserId(), id, request == null ? null : request.getReason()));
     }
 
     @PutMapping("/api/mini/express-orders/{id}/complete")
     public ApiResponse<ExpressOrderResponse> miniComplete(@PathVariable Long id) {
-        return ApiResponse.ok(expressOrderService.complete(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.completeMine(user.getUserId(), id));
     }
 
     @GetMapping("/api/admin/express-orders")
@@ -62,35 +66,49 @@ public class ExpressOrderController {
         return ApiResponse.ok(expressOrderService.listAdmin(user.getCommunityId(), status));
     }
 
+    @GetMapping("/api/admin/express-orders/page")
+    @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
+    public ApiResponse<PageResponse<ExpressOrderResponse>> pageAdmin(@RequestParam(required = false) ExpressOrderStatus status,
+                                                                     @RequestParam(required = false) Integer pageNo,
+                                                                     @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.listAdminPage(user.getCommunityId(), status, pageNo, pageSize));
+    }
+
     @GetMapping("/api/admin/express-orders/{id}")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<ExpressOrderResponse> adminDetail(@PathVariable Long id) {
-        return ApiResponse.ok(expressOrderService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.detailAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/express-orders/{id}/confirm")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<ExpressOrderResponse> confirm(@PathVariable Long id) {
-        return ApiResponse.ok(expressOrderService.confirm(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.confirmAdmin(user.getCommunityId(), id, user.getUserId()));
     }
 
     @PutMapping("/api/admin/express-orders/{id}/adjust-fee")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<ExpressOrderResponse> adjustFee(@PathVariable Long id,
                                                        @Valid @RequestBody ExpressFeeAdjustRequest request) {
-        return ApiResponse.ok(expressOrderService.adjustFee(id, request.getFeeCent(), request.getReason()));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.adjustFeeAdmin(user.getCommunityId(), id, request.getFeeCent(), request.getReason()));
     }
 
     @PutMapping("/api/admin/express-orders/{id}/cancel")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<ExpressOrderResponse> adminCancel(@PathVariable Long id, @RequestBody(required = false) ExpressCancelRequest request) {
-        return ApiResponse.ok(expressOrderService.cancel(id, request == null ? null : request.getReason()));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.cancelAdmin(user.getCommunityId(), id, request == null ? null : request.getReason()));
     }
 
     @PutMapping("/api/admin/express-orders/{id}/offline-pay-status")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<ExpressOrderResponse> updateOfflinePayStatus(@PathVariable Long id,
                                                                     @Valid @RequestBody ExpressOfflinePayRequest request) {
-        return ApiResponse.ok(expressOrderService.updateOfflinePayStatus(id, request.getStatus()));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(expressOrderService.updateOfflinePayStatusAdmin(user.getCommunityId(), id, request.getStatus()));
     }
 }
diff --git a/backend/src/main/java/com/linhelp/express/ExpressOrderService.java b/backend/src/main/java/com/linhelp/express/ExpressOrderService.java
index 292450c..87f344d 100644
--- a/backend/src/main/java/com/linhelp/express/ExpressOrderService.java
+++ b/backend/src/main/java/com/linhelp/express/ExpressOrderService.java
@@ -1,10 +1,15 @@
 package com.linhelp.express;
 
+import com.linhelp.common.api.PageResponse;
+import com.linhelp.common.api.PageUtils;
 import com.linhelp.common.enums.ExpressOrderStatus;
 import com.linhelp.common.enums.OfflinePayStatus;
 import com.linhelp.common.exception.BizException;
+import com.linhelp.orderlog.OrderLogService;
 import com.linhelp.user.AddressResponse;
 import com.linhelp.user.UserAddressService;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
@@ -16,13 +21,30 @@ import java.util.concurrent.atomic.AtomicLong;
 
 @Service
 public class ExpressOrderService {
+    private static final String BIZ_TYPE = "EXPRESS_ORDER";
     private final UserAddressService addressService;
+    private final OrderLogService orderLogService;
+    private final ExpressOrderStore store;
     private final AtomicLong orderIds = new AtomicLong(1L);
     private final AtomicLong logIds = new AtomicLong(1L);
     private final Map<Long, ExpressOrderResponse> orders = new LinkedHashMap<Long, ExpressOrderResponse>();
 
+    @Autowired
+    public ExpressOrderService(UserAddressService addressService,
+                               OrderLogService orderLogService,
+                               ObjectProvider<ExpressOrderStore> storeProvider) {
+        this(addressService, orderLogService, storeProvider.getIfAvailable());
+    }
+
     public ExpressOrderService(UserAddressService addressService) {
+        this(addressService, new OrderLogService(), (ExpressOrderStore) null);
+    }
+
+    public ExpressOrderService(UserAddressService addressService, OrderLogService orderLogService, ExpressOrderStore store) {
         this.addressService = addressService;
+        this.orderLogService = orderLogService;
+        this.store = store;
+        loadStoredOrders();
     }
 
     public synchronized ExpressOrderResponse create(Long userId, ExpressOrderRequest request) {
@@ -49,8 +71,10 @@ public class ExpressOrderService {
         order.setRemark(request.getRemark());
         order.setCreatedAt(LocalDateTime.now());
         order.setUpdatedAt(order.getCreatedAt());
-        addLog(order, "CREATE", "用户提交快递代取");
+        addDetailLog(order, "CREATE", "resident created express order");
         orders.put(order.getId(), order);
+        writeLog(order, null, order.getStatus().name(), "CREATE", userId, "resident created express order");
+        persist(order);
         return copyOrder(order);
     }
 
@@ -58,6 +82,14 @@ public class ExpressOrderService {
         return copyOrder(requireOrder(id));
     }
 
+    public synchronized ExpressOrderResponse detailMine(Long userId, Long id) {
+        return copyOrder(requireMine(userId, id));
+    }
+
+    public synchronized ExpressOrderResponse detailAdmin(Long communityId, Long id) {
+        return copyOrder(requireAdmin(communityId, id));
+    }
+
     public synchronized List<ExpressOrderResponse> listMine(Long userId) {
         List<ExpressOrderResponse> result = new ArrayList<ExpressOrderResponse>();
         for (ExpressOrderResponse order : orders.values()) {
@@ -82,9 +114,26 @@ public class ExpressOrderService {
         return result;
     }
 
+    public synchronized PageResponse<ExpressOrderResponse> listAdminPage(Long communityId,
+                                                                         ExpressOrderStatus status,
+                                                                         Integer pageNo,
+                                                                         Integer pageSize) {
+        return PageUtils.page(listAdmin(communityId, status), pageNo, pageSize);
+    }
+
     public synchronized ExpressOrderResponse confirm(Long id) {
         ExpressOrderResponse order = requireOrder(id);
-        move(order, ExpressOrderStatus.PENDING_PICKUP, "CONFIRM", "后台确认快递代取");
+        move(order, ExpressOrderStatus.PENDING_PICKUP, "CONFIRM", null, "admin confirmed express order");
+        return copyOrder(order);
+    }
+
+    public synchronized ExpressOrderResponse confirmAdmin(Long communityId, Long id) {
+        return confirmAdmin(communityId, id, null);
+    }
+
+    public synchronized ExpressOrderResponse confirmAdmin(Long communityId, Long id, Long operatorId) {
+        ExpressOrderResponse order = requireAdmin(communityId, id);
+        move(order, ExpressOrderStatus.PENDING_PICKUP, "CONFIRM", operatorId, "admin confirmed express order");
         return copyOrder(order);
     }
 
@@ -92,39 +141,73 @@ public class ExpressOrderService {
         ExpressOrderResponse order = requireOrder(id);
         order.setFeeCent(feeCent);
         order.setUpdatedAt(LocalDateTime.now());
-        addLog(order, "ADJUST_FEE", "调整服务费为" + feeCent + "分：" + reason);
+        String content = "fee adjusted to " + feeCent + ": " + nullToEmpty(reason);
+        addDetailLog(order, "ADJUST_FEE", content);
+        writeLog(order, null, null, "ADJUST_FEE", null, content);
+        persist(order);
+        return copyOrder(order);
+    }
+
+    public synchronized ExpressOrderResponse adjustFeeAdmin(Long communityId, Long id, int feeCent, String reason) {
+        ExpressOrderResponse order = requireAdmin(communityId, id);
+        order.setFeeCent(feeCent);
+        order.setUpdatedAt(LocalDateTime.now());
+        String content = "fee adjusted to " + feeCent + ": " + nullToEmpty(reason);
+        addDetailLog(order, "ADJUST_FEE", content);
+        writeLog(order, null, null, "ADJUST_FEE", null, content);
+        persist(order);
         return copyOrder(order);
     }
 
     public synchronized ExpressOrderResponse cancel(Long id, String reason) {
         ExpressOrderResponse order = requireOrder(id);
         order.setCancelReason(reason);
-        move(order, ExpressOrderStatus.CANCELED, "CANCEL", "取消订单：" + nullToEmpty(reason));
+        move(order, ExpressOrderStatus.CANCELED, "CANCEL", null, "express order canceled: " + nullToEmpty(reason));
+        return copyOrder(order);
+    }
+
+    public synchronized ExpressOrderResponse cancelMine(Long userId, Long id, String reason) {
+        ExpressOrderResponse order = requireMine(userId, id);
+        order.setCancelReason(reason);
+        move(order, ExpressOrderStatus.CANCELED, "CANCEL", userId, "resident canceled express order: " + nullToEmpty(reason));
+        return copyOrder(order);
+    }
+
+    public synchronized ExpressOrderResponse cancelAdmin(Long communityId, Long id, String reason) {
+        ExpressOrderResponse order = requireAdmin(communityId, id);
+        order.setCancelReason(reason);
+        move(order, ExpressOrderStatus.CANCELED, "CANCEL", null, "admin canceled express order: " + nullToEmpty(reason));
         return copyOrder(order);
     }
 
     public synchronized ExpressOrderResponse complete(Long id) {
         ExpressOrderResponse order = requireOrder(id);
-        move(order, ExpressOrderStatus.COMPLETED, "COMPLETE", "订单完成");
+        move(order, ExpressOrderStatus.COMPLETED, "COMPLETE", null, "express order completed");
+        return copyOrder(order);
+    }
+
+    public synchronized ExpressOrderResponse completeMine(Long userId, Long id) {
+        ExpressOrderResponse order = requireMine(userId, id);
+        move(order, ExpressOrderStatus.COMPLETED, "COMPLETE", userId, "resident confirmed express order completed");
         return copyOrder(order);
     }
 
     public synchronized ExpressOrderResponse markPickingUp(Long id) {
         ExpressOrderResponse order = requireOrder(id);
-        move(order, ExpressOrderStatus.PICKING_UP, "PICKING_UP", "配送员开始取件");
+        move(order, ExpressOrderStatus.PICKING_UP, "PICKING_UP", null, "rider started pickup");
         return copyOrder(order);
     }
 
     public synchronized ExpressOrderResponse markDelivering(Long id) {
         ExpressOrderResponse order = requireOrder(id);
-        move(order, ExpressOrderStatus.DELIVERING, "DELIVERING", "配送员开始配送");
+        move(order, ExpressOrderStatus.DELIVERING, "DELIVERING", null, "rider started delivery");
         return copyOrder(order);
     }
 
     public synchronized ExpressOrderResponse markDelivered(Long id, String photoUrl) {
         ExpressOrderResponse order = requireOrder(id);
         order.setDeliveredPhotoUrl(photoUrl);
-        move(order, ExpressOrderStatus.DELIVERED, "DELIVERED", "配送员送达");
+        move(order, ExpressOrderStatus.DELIVERED, "DELIVERED", null, "rider delivered express order");
         return copyOrder(order);
     }
 
@@ -132,28 +215,75 @@ public class ExpressOrderService {
         ExpressOrderResponse order = requireOrder(id);
         order.setOfflinePayStatus(status);
         order.setUpdatedAt(LocalDateTime.now());
-        addLog(order, "OFFLINE_PAY", "线下收款状态：" + status.name());
+        addDetailLog(order, "OFFLINE_PAY", "offline payment status: " + status.name());
+        writeLog(order, null, null, "OFFLINE_PAY", null, "offline payment status: " + status.name());
+        persist(order);
         return copyOrder(order);
     }
 
-    private void move(ExpressOrderResponse order, ExpressOrderStatus target, String action, String content) {
-        if (!order.getStatus().canMoveTo(target)) {
-            throw new BizException("订单状态不允许操作");
+    public synchronized ExpressOrderResponse updateOfflinePayStatusAdmin(Long communityId, Long id, OfflinePayStatus status) {
+        ExpressOrderResponse order = requireAdmin(communityId, id);
+        order.setOfflinePayStatus(status);
+        order.setUpdatedAt(LocalDateTime.now());
+        addDetailLog(order, "OFFLINE_PAY", "offline payment status: " + status.name());
+        writeLog(order, null, null, "OFFLINE_PAY", null, "offline payment status: " + status.name());
+        persist(order);
+        return copyOrder(order);
+    }
+
+    private void loadStoredOrders() {
+        if (store == null) {
+            return;
         }
+        long maxId = 0L;
+        for (ExpressOrderResponse order : store.loadAll()) {
+            orders.put(order.getId(), copyOrder(order));
+            maxId = Math.max(maxId, order.getId());
+        }
+        orderIds.set(maxId + 1L);
+    }
+
+    private void move(ExpressOrderResponse order,
+                      ExpressOrderStatus target,
+                      String action,
+                      Long operatorId,
+                      String content) {
+        if (!order.getStatus().canMoveTo(target)) {
+            throw new BizException("order status does not allow this action");
+        }
+        ExpressOrderStatus from = order.getStatus();
         order.setStatus(target);
         order.setUpdatedAt(LocalDateTime.now());
-        addLog(order, action, content);
+        addDetailLog(order, action, content);
+        writeLog(order, from.name(), target.name(), action, operatorId, content);
+        persist(order);
     }
 
     private ExpressOrderResponse requireOrder(Long id) {
         ExpressOrderResponse order = orders.get(id);
         if (order == null) {
-            throw new BizException(404, "快递代取订单不存在");
+            throw new BizException(404, "express order not found");
         }
         return order;
     }
 
-    private void addLog(ExpressOrderResponse order, String action, String content) {
+    private ExpressOrderResponse requireMine(Long userId, Long id) {
+        ExpressOrderResponse order = requireOrder(id);
+        if (!userId.equals(order.getUserId())) {
+            throw new BizException(404, "express order not found");
+        }
+        return order;
+    }
+
+    private ExpressOrderResponse requireAdmin(Long communityId, Long id) {
+        ExpressOrderResponse order = requireOrder(id);
+        if (!communityId.equals(order.getCommunityId())) {
+            throw new BizException(404, "express order not found");
+        }
+        return order;
+    }
+
+    private void addDetailLog(ExpressOrderResponse order, String action, String content) {
         ExpressOrderLogResponse log = new ExpressOrderLogResponse();
         log.setId(logIds.getAndIncrement());
         log.setOrderId(order.getId());
@@ -163,6 +293,31 @@ public class ExpressOrderService {
         order.getLogs().add(log);
     }
 
+    private void writeLog(ExpressOrderResponse order,
+                          String fromStatus,
+                          String toStatus,
+                          String action,
+                          Long operatorId,
+                          String note) {
+        orderLogService.record(
+                order.getTenantId(),
+                order.getCommunityId(),
+                BIZ_TYPE,
+                order.getId(),
+                fromStatus,
+                toStatus,
+                action,
+                operatorId,
+                note
+        );
+    }
+
+    private void persist(ExpressOrderResponse order) {
+        if (store != null) {
+            store.save(copyOrder(order));
+        }
+    }
+
     private String buildDeliveryAddress(AddressResponse address) {
         StringBuilder builder = new StringBuilder();
         append(builder, address.getBuilding());
@@ -215,6 +370,9 @@ public class ExpressOrderService {
 
     private List<ExpressOrderLogResponse> copyLogs(List<ExpressOrderLogResponse> sourceLogs) {
         List<ExpressOrderLogResponse> logs = new ArrayList<ExpressOrderLogResponse>();
+        if (sourceLogs == null) {
+            return logs;
+        }
         for (ExpressOrderLogResponse source : sourceLogs) {
             ExpressOrderLogResponse target = new ExpressOrderLogResponse();
             target.setId(source.getId());
diff --git a/backend/src/main/java/com/linhelp/express/ExpressOrderStore.java b/backend/src/main/java/com/linhelp/express/ExpressOrderStore.java
new file mode 100644
index 0000000..df45eae
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/express/ExpressOrderStore.java
@@ -0,0 +1,9 @@
+package com.linhelp.express;
+
+import java.util.List;
+
+public interface ExpressOrderStore {
+    List<ExpressOrderResponse> loadAll();
+
+    void save(ExpressOrderResponse order);
+}
diff --git a/backend/src/main/java/com/linhelp/express/JdbcExpressOrderStore.java b/backend/src/main/java/com/linhelp/express/JdbcExpressOrderStore.java
new file mode 100644
index 0000000..c8fcc63
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/express/JdbcExpressOrderStore.java
@@ -0,0 +1,132 @@
+package com.linhelp.express;
+
+import com.linhelp.common.enums.ExpressOrderStatus;
+import com.linhelp.common.enums.OfflinePayStatus;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Repository
+@ConditionalOnBean(JdbcTemplate.class)
+public class JdbcExpressOrderStore implements ExpressOrderStore {
+    private final JdbcTemplate jdbcTemplate;
+
+    public JdbcExpressOrderStore(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @Override
+    public List<ExpressOrderResponse> loadAll() {
+        return jdbcTemplate.query(
+                "SELECT id, order_no, tenant_id, community_id, user_id, address_id, contact_name, contact_phone, delivery_address, " +
+                        "express_company, pickup_code, pickup_address, receiver_phone, phone, package_count, service_fee_cent, delivered_photo_url, " +
+                        "status, offline_pay_status, remark, cancel_reason, created_at, updated_at " +
+                        "FROM express_order WHERE deleted = 0 ORDER BY id ASC",
+                this::mapOrder
+        );
+    }
+
+    @Override
+    public void save(ExpressOrderResponse order) {
+        int updated = jdbcTemplate.update(
+                "UPDATE express_order SET order_no = ?, tenant_id = ?, community_id = ?, user_id = ?, address_id = ?, contact_name = ?, contact_phone = ?, " +
+                        "delivery_address = ?, express_company = ?, pickup_code = ?, pickup_address = ?, receiver_phone = ?, phone = ?, package_count = ?, " +
+                        "service_fee_cent = ?, delivered_photo_url = ?, status = ?, offline_pay_status = ?, remark = ?, cancel_reason = ?, updated_at = ? WHERE id = ?",
+                order.getOrderNo(),
+                order.getTenantId(),
+                order.getCommunityId(),
+                order.getUserId(),
+                order.getAddressId(),
+                order.getContactName(),
+                order.getContactPhone(),
+                order.getDeliveryAddress(),
+                order.getExpressCompany(),
+                order.getPickupCode(),
+                order.getPickupAddress(),
+                order.getReceiverPhone(),
+                phoneForLegacyColumn(order),
+                order.getPackageCount(),
+                order.getFeeCent(),
+                order.getDeliveredPhotoUrl(),
+                order.getStatus().name(),
+                order.getOfflinePayStatus().name(),
+                order.getRemark(),
+                order.getCancelReason(),
+                toTimestamp(order.getUpdatedAt()),
+                order.getId()
+        );
+        if (updated == 0) {
+            jdbcTemplate.update(
+                    "INSERT INTO express_order (id, order_no, tenant_id, community_id, user_id, address_id, contact_name, contact_phone, delivery_address, " +
+                            "express_company, pickup_code, pickup_address, receiver_phone, phone, package_count, service_fee_cent, delivered_photo_url, " +
+                            "status, offline_pay_status, remark, cancel_reason, created_at, updated_at) " +
+                            "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+                    order.getId(),
+                    order.getOrderNo(),
+                    order.getTenantId(),
+                    order.getCommunityId(),
+                    order.getUserId(),
+                    order.getAddressId(),
+                    order.getContactName(),
+                    order.getContactPhone(),
+                    order.getDeliveryAddress(),
+                    order.getExpressCompany(),
+                    order.getPickupCode(),
+                    order.getPickupAddress(),
+                    order.getReceiverPhone(),
+                    phoneForLegacyColumn(order),
+                    order.getPackageCount(),
+                    order.getFeeCent(),
+                    order.getDeliveredPhotoUrl(),
+                    order.getStatus().name(),
+                    order.getOfflinePayStatus().name(),
+                    order.getRemark(),
+                    order.getCancelReason(),
+                    toTimestamp(order.getCreatedAt()),
+                    toTimestamp(order.getUpdatedAt())
+            );
+        }
+    }
+
+    private ExpressOrderResponse mapOrder(ResultSet rs, int rowNum) throws SQLException {
+        ExpressOrderResponse order = new ExpressOrderResponse();
+        order.setId(rs.getLong("id"));
+        order.setOrderNo(rs.getString("order_no"));
+        order.setTenantId(rs.getLong("tenant_id"));
+        order.setCommunityId(rs.getLong("community_id"));
+        order.setUserId(rs.getLong("user_id"));
+        order.setAddressId(rs.getLong("address_id"));
+        order.setContactName(rs.getString("contact_name"));
+        order.setContactPhone(rs.getString("contact_phone"));
+        order.setDeliveryAddress(rs.getString("delivery_address"));
+        order.setExpressCompany(rs.getString("express_company"));
+        order.setPickupCode(rs.getString("pickup_code"));
+        order.setPickupAddress(rs.getString("pickup_address"));
+        String receiverPhone = rs.getString("receiver_phone");
+        order.setReceiverPhone(receiverPhone == null ? rs.getString("phone") : receiverPhone);
+        order.setPackageCount(rs.getInt("package_count"));
+        order.setFeeCent(rs.getInt("service_fee_cent"));
+        order.setDeliveredPhotoUrl(rs.getString("delivered_photo_url"));
+        order.setStatus(ExpressOrderStatus.valueOf(rs.getString("status")));
+        order.setOfflinePayStatus(OfflinePayStatus.valueOf(rs.getString("offline_pay_status")));
+        order.setRemark(rs.getString("remark"));
+        order.setCancelReason(rs.getString("cancel_reason"));
+        order.setCreatedAt(rs.getTimestamp("created_at").toLocalDateTime());
+        order.setUpdatedAt(rs.getTimestamp("updated_at").toLocalDateTime());
+        return order;
+    }
+
+    private String phoneForLegacyColumn(ExpressOrderResponse order) {
+        return order.getReceiverPhone() == null ? order.getContactPhone() : order.getReceiverPhone();
+    }
+
+    private Timestamp toTimestamp(LocalDateTime value) {
+        return value == null ? null : Timestamp.valueOf(value);
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyController.java b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyController.java
index 35d13c6..a3108f0 100644
--- a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyController.java
+++ b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyController.java
@@ -1,6 +1,8 @@
 package com.linhelp.groupbuy;
 
 import com.linhelp.common.api.ApiResponse;
+import com.linhelp.common.api.PageResponse;
+import com.linhelp.common.enums.GroupBuyOrderStatus;
 import com.linhelp.common.security.AuthService;
 import com.linhelp.common.security.CurrentUser;
 import com.linhelp.common.security.RequireRole;
@@ -9,6 +11,7 @@ import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import javax.validation.Valid;
@@ -50,43 +53,68 @@ public class GroupBuyController {
         CurrentUser user = authService.currentUser();
         request.setTenantId(user.getTenantId());
         request.setCommunityId(user.getCommunityId());
-        return ApiResponse.ok(groupBuyService.update(id, request));
+        return ApiResponse.ok(groupBuyService.updateAdmin(user.getCommunityId(), id, request));
     }
 
     @PutMapping("/api/admin/group-buys/{id}/start")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GroupBuyResponse> start(@PathVariable Long id) {
-        return ApiResponse.ok(groupBuyService.start(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(groupBuyService.startAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/group-buys/{id}/close")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GroupBuyResponse> close(@PathVariable Long id) {
-        return ApiResponse.ok(groupBuyService.close(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(groupBuyService.closeAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/group-buys/{id}/complete")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GroupBuyResponse> completeGroupBuy(@PathVariable Long id) {
-        return ApiResponse.ok(groupBuyService.complete(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(groupBuyService.completeAdmin(user.getCommunityId(), id));
     }
 
     @GetMapping("/api/admin/group-buys/{id}/orders")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<List<GroupBuyOrderResponse>> listOrders(@PathVariable Long id) {
-        return ApiResponse.ok(orderService.listByGroupBuy(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.listByGroupBuyAdmin(user.getCommunityId(), id));
+    }
+
+    @GetMapping("/api/admin/group-buys/{id}/orders/page")
+    @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
+    public ApiResponse<PageResponse<GroupBuyOrderResponse>> pageOrders(@PathVariable Long id,
+                                                                       @RequestParam(required = false) GroupBuyOrderStatus status,
+                                                                       @RequestParam(required = false) Integer pageNo,
+                                                                       @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.listByGroupBuyAdminPage(user.getCommunityId(), id, status, pageNo, pageSize));
+    }
+
+    @GetMapping("/api/admin/group-buy-orders/page")
+    @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
+    public ApiResponse<PageResponse<GroupBuyOrderResponse>> pageAllOrders(@RequestParam(required = false) GroupBuyOrderStatus status,
+                                                                          @RequestParam(required = false) Integer pageNo,
+                                                                          @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.listAdminPage(user.getCommunityId(), status, pageNo, pageSize));
     }
 
     @PutMapping("/api/admin/group-buy-orders/{id}/confirm")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GroupBuyOrderResponse> confirmOrder(@PathVariable Long id) {
-        return ApiResponse.ok(orderService.confirm(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.confirmAdmin(user.getCommunityId(), id, user.getUserId()));
     }
 
     @PutMapping("/api/admin/group-buy-orders/{id}/ready")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GroupBuyOrderResponse> markOrderReady(@PathVariable Long id) {
-        return ApiResponse.ok(orderService.markReady(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.markReadyAdmin(user.getCommunityId(), id));
     }
 
     @GetMapping("/api/mini/group-buys")
@@ -97,7 +125,8 @@ public class GroupBuyController {
 
     @GetMapping("/api/mini/group-buys/{id}")
     public ApiResponse<GroupBuyResponse> detail(@PathVariable Long id) {
-        return ApiResponse.ok(groupBuyService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(groupBuyService.detailMini(user.getCommunityId(), id));
     }
 
     @PostMapping("/api/mini/group-buy-orders")
@@ -116,16 +145,19 @@ public class GroupBuyController {
 
     @GetMapping("/api/mini/group-buy-orders/{id}")
     public ApiResponse<GroupBuyOrderResponse> orderDetail(@PathVariable Long id) {
-        return ApiResponse.ok(orderService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.detailMine(user.getUserId(), id));
     }
 
     @PutMapping("/api/mini/group-buy-orders/{id}/cancel")
     public ApiResponse<GroupBuyOrderResponse> cancel(@PathVariable Long id) {
-        return ApiResponse.ok(orderService.cancel(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.cancelMine(user.getUserId(), id));
     }
 
     @PutMapping("/api/mini/group-buy-orders/{id}/complete")
     public ApiResponse<GroupBuyOrderResponse> completeOrder(@PathVariable Long id) {
-        return ApiResponse.ok(orderService.complete(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(orderService.completeMine(user.getUserId(), id));
     }
 }
diff --git a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderService.java b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderService.java
index 2444396..eb168b7 100644
--- a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderService.java
+++ b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderService.java
@@ -1,9 +1,14 @@
 package com.linhelp.groupbuy;
 
+import com.linhelp.common.api.PageResponse;
+import com.linhelp.common.api.PageUtils;
 import com.linhelp.common.enums.DeliveryMethod;
 import com.linhelp.common.enums.GroupBuyOrderStatus;
 import com.linhelp.common.enums.OfflinePayStatus;
 import com.linhelp.common.exception.BizException;
+import com.linhelp.orderlog.OrderLogService;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
@@ -15,17 +20,34 @@ import java.util.concurrent.atomic.AtomicLong;
 
 @Service
 public class GroupBuyOrderService {
+    private static final String BIZ_TYPE = "GROUP_BUY_ORDER";
     private final GroupBuyService groupBuyService;
+    private final OrderLogService orderLogService;
+    private final GroupBuyOrderStore store;
     private final AtomicLong ids = new AtomicLong(1L);
     private final Map<Long, GroupBuyOrderResponse> orders = new LinkedHashMap<Long, GroupBuyOrderResponse>();
 
+    @Autowired
+    public GroupBuyOrderService(GroupBuyService groupBuyService,
+                                OrderLogService orderLogService,
+                                ObjectProvider<GroupBuyOrderStore> storeProvider) {
+        this(groupBuyService, orderLogService, storeProvider.getIfAvailable());
+    }
+
     public GroupBuyOrderService(GroupBuyService groupBuyService) {
+        this(groupBuyService, new OrderLogService(), (GroupBuyOrderStore) null);
+    }
+
+    public GroupBuyOrderService(GroupBuyService groupBuyService, OrderLogService orderLogService, GroupBuyOrderStore store) {
         this.groupBuyService = groupBuyService;
+        this.orderLogService = orderLogService;
+        this.store = store;
+        loadStoredOrders();
     }
 
     public synchronized GroupBuyOrderResponse create(Long userId, GroupBuyOrderRequest request) {
         if (request.getDeliveryMethod() != DeliveryMethod.SELF_PICKUP && request.getAddressId() == null) {
-            throw new BizException("配送地址不能为空");
+            throw new BizException("delivery address is required");
         }
         GroupBuyResponse groupBuy = groupBuyService.reserveForOrder(request.getGroupBuyId(), request.getQuantity());
         Long orderId = ids.getAndIncrement();
@@ -49,6 +71,8 @@ public class GroupBuyOrderService {
         order.setCreatedAt(LocalDateTime.now());
         order.setUpdatedAt(order.getCreatedAt());
         orders.put(order.getId(), order);
+        writeLog(order, null, order.getStatus().name(), "CREATE", userId, "resident created group buy order");
+        persist(order);
         return copy(order);
     }
 
@@ -56,6 +80,14 @@ public class GroupBuyOrderService {
         return copy(require(id));
     }
 
+    public synchronized GroupBuyOrderResponse detailMine(Long userId, Long id) {
+        return copy(requireMine(userId, id));
+    }
+
+    public synchronized GroupBuyOrderResponse detailAdmin(Long communityId, Long id) {
+        return copy(requireAdmin(communityId, id));
+    }
+
     public synchronized List<GroupBuyOrderResponse> listMine(Long userId) {
         List<GroupBuyOrderResponse> result = new ArrayList<GroupBuyOrderResponse>();
         for (GroupBuyOrderResponse order : orders.values()) {
@@ -76,59 +108,221 @@ public class GroupBuyOrderService {
         return result;
     }
 
+    public synchronized List<GroupBuyOrderResponse> listByGroupBuyAdmin(Long communityId, Long groupBuyId) {
+        List<GroupBuyOrderResponse> result = new ArrayList<GroupBuyOrderResponse>();
+        for (GroupBuyOrderResponse order : orders.values()) {
+            if (communityId.equals(order.getCommunityId()) && groupBuyId.equals(order.getGroupBuyId())) {
+                result.add(copy(order));
+            }
+        }
+        return result;
+    }
+
+    public synchronized PageResponse<GroupBuyOrderResponse> listByGroupBuyAdminPage(Long communityId,
+                                                                                    Long groupBuyId,
+                                                                                    GroupBuyOrderStatus status,
+                                                                                    Integer pageNo,
+                                                                                    Integer pageSize) {
+        List<GroupBuyOrderResponse> result = new ArrayList<GroupBuyOrderResponse>();
+        for (GroupBuyOrderResponse order : orders.values()) {
+            if (!communityId.equals(order.getCommunityId()) || !groupBuyId.equals(order.getGroupBuyId())) {
+                continue;
+            }
+            if (status != null && status != order.getStatus()) {
+                continue;
+            }
+            result.add(copy(order));
+        }
+        return PageUtils.page(result, pageNo, pageSize);
+    }
+
+    public synchronized PageResponse<GroupBuyOrderResponse> listAdminPage(Long communityId,
+                                                                          GroupBuyOrderStatus status,
+                                                                          Integer pageNo,
+                                                                          Integer pageSize) {
+        List<GroupBuyOrderResponse> result = new ArrayList<GroupBuyOrderResponse>();
+        for (GroupBuyOrderResponse order : orders.values()) {
+            if (!communityId.equals(order.getCommunityId())) {
+                continue;
+            }
+            if (status != null && status != order.getStatus()) {
+                continue;
+            }
+            result.add(copy(order));
+        }
+        return PageUtils.page(result, pageNo, pageSize);
+    }
+
     public synchronized GroupBuyOrderResponse confirm(Long id) {
         GroupBuyOrderResponse order = require(id);
-        move(order, GroupBuyOrderStatus.PENDING_CONFIRM, GroupBuyOrderStatus.CONFIRMED);
+        move(order, GroupBuyOrderStatus.PENDING_CONFIRM, GroupBuyOrderStatus.CONFIRMED, "CONFIRM", null, "admin confirmed group buy order");
+        return copy(order);
+    }
+
+    public synchronized GroupBuyOrderResponse confirmAdmin(Long communityId, Long id) {
+        return confirmAdmin(communityId, id, null);
+    }
+
+    public synchronized GroupBuyOrderResponse confirmAdmin(Long communityId, Long id, Long operatorId) {
+        GroupBuyOrderResponse order = requireAdmin(communityId, id);
+        move(order, GroupBuyOrderStatus.PENDING_CONFIRM, GroupBuyOrderStatus.CONFIRMED, "CONFIRM", operatorId, "admin confirmed group buy order");
         return copy(order);
     }
 
     public synchronized GroupBuyOrderResponse markReady(Long id) {
         GroupBuyOrderResponse order = require(id);
-        GroupBuyOrderStatus target = DeliveryMethod.SELF_PICKUP.equals(order.getDeliveryMethod())
-                ? GroupBuyOrderStatus.PENDING_PICKUP
-                : GroupBuyOrderStatus.PENDING_DELIVERY;
-        move(order, GroupBuyOrderStatus.CONFIRMED, target);
+        move(order, GroupBuyOrderStatus.CONFIRMED, readyTarget(order), "READY", null, "group buy order ready");
+        return copy(order);
+    }
+
+    public synchronized GroupBuyOrderResponse markReadyAdmin(Long communityId, Long id) {
+        GroupBuyOrderResponse order = requireAdmin(communityId, id);
+        move(order, GroupBuyOrderStatus.CONFIRMED, readyTarget(order), "READY", null, "group buy order ready");
         return copy(order);
     }
 
     public synchronized GroupBuyOrderResponse markDelivering(Long id) {
         GroupBuyOrderResponse order = require(id);
-        move(order, GroupBuyOrderStatus.PENDING_DELIVERY, GroupBuyOrderStatus.DELIVERING);
+        move(order, GroupBuyOrderStatus.PENDING_DELIVERY, GroupBuyOrderStatus.DELIVERING, "DELIVERING", null, "rider started delivery");
         return copy(order);
     }
 
     public synchronized GroupBuyOrderResponse complete(Long id) {
         GroupBuyOrderResponse order = require(id);
-        if (order.getStatus() != GroupBuyOrderStatus.PENDING_PICKUP && order.getStatus() != GroupBuyOrderStatus.DELIVERING) {
-            throw new BizException("订单状态不允许操作");
-        }
-        order.setStatus(GroupBuyOrderStatus.COMPLETED);
-        order.setUpdatedAt(LocalDateTime.now());
+        completeOrder(order, null, "group buy order completed");
+        return copy(order);
+    }
+
+    public synchronized GroupBuyOrderResponse completeMine(Long userId, Long id) {
+        GroupBuyOrderResponse order = requireMine(userId, id);
+        completeOrder(order, userId, "resident confirmed group buy order completed");
+        return copy(order);
+    }
+
+    public synchronized GroupBuyOrderResponse completeAdmin(Long communityId, Long id) {
+        GroupBuyOrderResponse order = requireAdmin(communityId, id);
+        completeOrder(order, null, "admin completed group buy order");
         return copy(order);
     }
 
     public synchronized GroupBuyOrderResponse cancel(Long id) {
         GroupBuyOrderResponse order = require(id);
-        if (order.getStatus() == GroupBuyOrderStatus.COMPLETED) {
-            throw new BizException("订单状态不允许操作");
-        }
-        order.setStatus(GroupBuyOrderStatus.CANCELED);
-        order.setUpdatedAt(LocalDateTime.now());
+        cancelOrder(order, null, "group buy order canceled");
         return copy(order);
     }
 
-    private void move(GroupBuyOrderResponse order, GroupBuyOrderStatus expected, GroupBuyOrderStatus target) {
+    public synchronized GroupBuyOrderResponse cancelMine(Long userId, Long id) {
+        GroupBuyOrderResponse order = requireMine(userId, id);
+        cancelOrder(order, userId, "resident canceled group buy order");
+        return copy(order);
+    }
+
+    public synchronized GroupBuyOrderResponse cancelAdmin(Long communityId, Long id) {
+        GroupBuyOrderResponse order = requireAdmin(communityId, id);
+        cancelOrder(order, null, "admin canceled group buy order");
+        return copy(order);
+    }
+
+    private void loadStoredOrders() {
+        if (store == null) {
+            return;
+        }
+        long maxId = 0L;
+        for (GroupBuyOrderResponse order : store.loadAll()) {
+            orders.put(order.getId(), copy(order));
+            maxId = Math.max(maxId, order.getId());
+        }
+        ids.set(maxId + 1L);
+    }
+
+    private GroupBuyOrderStatus readyTarget(GroupBuyOrderResponse order) {
+        return DeliveryMethod.SELF_PICKUP.equals(order.getDeliveryMethod())
+                ? GroupBuyOrderStatus.PENDING_PICKUP
+                : GroupBuyOrderStatus.PENDING_DELIVERY;
+    }
+
+    private void completeOrder(GroupBuyOrderResponse order, Long operatorId, String note) {
+        if (order.getStatus() != GroupBuyOrderStatus.PENDING_PICKUP && order.getStatus() != GroupBuyOrderStatus.DELIVERING) {
+            throw new BizException("order status does not allow this action");
+        }
+        GroupBuyOrderStatus from = order.getStatus();
+        order.setStatus(GroupBuyOrderStatus.COMPLETED);
+        order.setUpdatedAt(LocalDateTime.now());
+        writeLog(order, from.name(), order.getStatus().name(), "COMPLETE", operatorId, note);
+        persist(order);
+    }
+
+    private void cancelOrder(GroupBuyOrderResponse order, Long operatorId, String note) {
+        if (order.getStatus() == GroupBuyOrderStatus.COMPLETED) {
+            throw new BizException("order status does not allow this action");
+        }
+        GroupBuyOrderStatus from = order.getStatus();
+        order.setStatus(GroupBuyOrderStatus.CANCELED);
+        order.setUpdatedAt(LocalDateTime.now());
+        writeLog(order, from.name(), order.getStatus().name(), "CANCEL", operatorId, note);
+        persist(order);
+    }
+
+    private void move(GroupBuyOrderResponse order,
+                      GroupBuyOrderStatus expected,
+                      GroupBuyOrderStatus target,
+                      String action,
+                      Long operatorId,
+                      String note) {
         if (order.getStatus() != expected) {
-            throw new BizException("订单状态不允许操作");
+            throw new BizException("order status does not allow this action");
         }
         order.setStatus(target);
         order.setUpdatedAt(LocalDateTime.now());
+        writeLog(order, expected.name(), target.name(), action, operatorId, note);
+        persist(order);
+    }
+
+    private void writeLog(GroupBuyOrderResponse order,
+                          String fromStatus,
+                          String toStatus,
+                          String action,
+                          Long operatorId,
+                          String note) {
+        orderLogService.record(
+                order.getTenantId(),
+                order.getCommunityId(),
+                BIZ_TYPE,
+                order.getId(),
+                fromStatus,
+                toStatus,
+                action,
+                operatorId,
+                note
+        );
+    }
+
+    private void persist(GroupBuyOrderResponse order) {
+        if (store != null) {
+            store.save(copy(order));
+        }
     }
 
     private GroupBuyOrderResponse require(Long id) {
         GroupBuyOrderResponse order = orders.get(id);
         if (order == null) {
-            throw new BizException(404, "团购订单不存在");
+            throw new BizException(404, "group buy order not found");
+        }
+        return order;
+    }
+
+    private GroupBuyOrderResponse requireMine(Long userId, Long id) {
+        GroupBuyOrderResponse order = require(id);
+        if (!userId.equals(order.getUserId())) {
+            throw new BizException(404, "group buy order not found");
+        }
+        return order;
+    }
+
+    private GroupBuyOrderResponse requireAdmin(Long communityId, Long id) {
+        GroupBuyOrderResponse order = require(id);
+        if (!communityId.equals(order.getCommunityId())) {
+            throw new BizException(404, "group buy order not found");
         }
         return order;
     }
diff --git a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderStore.java b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderStore.java
new file mode 100644
index 0000000..5a9bbfa
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyOrderStore.java
@@ -0,0 +1,9 @@
+package com.linhelp.groupbuy;
+
+import java.util.List;
+
+public interface GroupBuyOrderStore {
+    List<GroupBuyOrderResponse> loadAll();
+
+    void save(GroupBuyOrderResponse order);
+}
diff --git a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyService.java b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyService.java
index 390ad20..c8a4df3 100644
--- a/backend/src/main/java/com/linhelp/groupbuy/GroupBuyService.java
+++ b/backend/src/main/java/com/linhelp/groupbuy/GroupBuyService.java
@@ -43,28 +43,66 @@ public class GroupBuyService {
         return copy(groupBuy);
     }
 
+    public synchronized GroupBuyResponse updateAdmin(Long communityId, Long id, GroupBuyRequest request) {
+        GroupBuyResponse groupBuy = requireAdmin(communityId, id);
+        if (request.getTenantId() != null) {
+            groupBuy.setTenantId(request.getTenantId());
+        }
+        if (request.getCommunityId() != null) {
+            groupBuy.setCommunityId(request.getCommunityId());
+        }
+        copyFields(request, groupBuy);
+        return copy(groupBuy);
+    }
+
     public synchronized GroupBuyResponse start(Long id) {
         GroupBuyResponse groupBuy = require(id);
         groupBuy.setStatus(STATUS_ONGOING);
         return copy(groupBuy);
     }
 
+    public synchronized GroupBuyResponse startAdmin(Long communityId, Long id) {
+        GroupBuyResponse groupBuy = requireAdmin(communityId, id);
+        groupBuy.setStatus(STATUS_ONGOING);
+        return copy(groupBuy);
+    }
+
     public synchronized GroupBuyResponse close(Long id) {
         GroupBuyResponse groupBuy = require(id);
         groupBuy.setStatus(STATUS_CLOSED);
         return copy(groupBuy);
     }
 
+    public synchronized GroupBuyResponse closeAdmin(Long communityId, Long id) {
+        GroupBuyResponse groupBuy = requireAdmin(communityId, id);
+        groupBuy.setStatus(STATUS_CLOSED);
+        return copy(groupBuy);
+    }
+
     public synchronized GroupBuyResponse complete(Long id) {
         GroupBuyResponse groupBuy = require(id);
         groupBuy.setStatus(STATUS_COMPLETED);
         return copy(groupBuy);
     }
 
+    public synchronized GroupBuyResponse completeAdmin(Long communityId, Long id) {
+        GroupBuyResponse groupBuy = requireAdmin(communityId, id);
+        groupBuy.setStatus(STATUS_COMPLETED);
+        return copy(groupBuy);
+    }
+
     public synchronized GroupBuyResponse detail(Long id) {
         return copy(require(id));
     }
 
+    public synchronized GroupBuyResponse detailMini(Long communityId, Long id) {
+        GroupBuyResponse groupBuy = requireAdmin(communityId, id);
+        if (!STATUS_ONGOING.equals(groupBuy.getStatus())) {
+            throw new BizException(404, "团购不存在");
+        }
+        return copy(groupBuy);
+    }
+
     public synchronized List<GroupBuyResponse> listAdmin(Long communityId) {
         List<GroupBuyResponse> result = new ArrayList<GroupBuyResponse>();
         for (GroupBuyResponse groupBuy : groupBuys.values()) {
@@ -108,6 +146,14 @@ public class GroupBuyService {
         return groupBuy;
     }
 
+    private GroupBuyResponse requireAdmin(Long communityId, Long id) {
+        GroupBuyResponse groupBuy = require(id);
+        if (!communityId.equals(groupBuy.getCommunityId())) {
+            throw new BizException(404, "团购不存在");
+        }
+        return groupBuy;
+    }
+
     private void copyFields(GroupBuyRequest request, GroupBuyResponse groupBuy) {
         groupBuy.setTitle(request.getTitle());
         groupBuy.setCoverUrl(request.getCoverUrl());
diff --git a/backend/src/main/java/com/linhelp/groupbuy/JdbcGroupBuyOrderStore.java b/backend/src/main/java/com/linhelp/groupbuy/JdbcGroupBuyOrderStore.java
new file mode 100644
index 0000000..76b47d0
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/groupbuy/JdbcGroupBuyOrderStore.java
@@ -0,0 +1,113 @@
+package com.linhelp.groupbuy;
+
+import com.linhelp.common.enums.DeliveryMethod;
+import com.linhelp.common.enums.GroupBuyOrderStatus;
+import com.linhelp.common.enums.OfflinePayStatus;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.time.LocalDateTime;
+import java.util.List;
+
+@Repository
+@ConditionalOnBean(JdbcTemplate.class)
+public class JdbcGroupBuyOrderStore implements GroupBuyOrderStore {
+    private final JdbcTemplate jdbcTemplate;
+
+    public JdbcGroupBuyOrderStore(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @Override
+    public List<GroupBuyOrderResponse> loadAll() {
+        return jdbcTemplate.query(
+                "SELECT id, order_no, tenant_id, community_id, group_buy_id, group_buy_title, cover_url, user_id, address_id, " +
+                        "delivery_method, quantity, price_cent, amount_cent, status, offline_pay_status, remark, created_at, updated_at " +
+                        "FROM group_buy_order WHERE deleted = 0 ORDER BY id ASC",
+                this::mapOrder
+        );
+    }
+
+    @Override
+    public void save(GroupBuyOrderResponse order) {
+        int updated = jdbcTemplate.update(
+                "UPDATE group_buy_order SET order_no = ?, tenant_id = ?, community_id = ?, group_buy_id = ?, group_buy_title = ?, cover_url = ?, " +
+                        "user_id = ?, address_id = ?, delivery_method = ?, quantity = ?, price_cent = ?, amount_cent = ?, status = ?, " +
+                        "offline_pay_status = ?, remark = ?, updated_at = ? WHERE id = ?",
+                order.getOrderNo(),
+                order.getTenantId(),
+                order.getCommunityId(),
+                order.getGroupBuyId(),
+                order.getGroupBuyTitle(),
+                order.getCoverUrl(),
+                order.getUserId(),
+                order.getAddressId(),
+                order.getDeliveryMethod().name(),
+                order.getQuantity(),
+                order.getPriceCent(),
+                order.getAmountCent(),
+                order.getStatus().name(),
+                order.getOfflinePayStatus().name(),
+                order.getRemark(),
+                toTimestamp(order.getUpdatedAt()),
+                order.getId()
+        );
+        if (updated == 0) {
+            jdbcTemplate.update(
+                    "INSERT INTO group_buy_order (id, order_no, tenant_id, community_id, group_buy_id, group_buy_title, cover_url, user_id, address_id, " +
+                            "delivery_method, quantity, price_cent, amount_cent, status, offline_pay_status, remark, created_at, updated_at) " +
+                            "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+                    order.getId(),
+                    order.getOrderNo(),
+                    order.getTenantId(),
+                    order.getCommunityId(),
+                    order.getGroupBuyId(),
+                    order.getGroupBuyTitle(),
+                    order.getCoverUrl(),
+                    order.getUserId(),
+                    order.getAddressId(),
+                    order.getDeliveryMethod().name(),
+                    order.getQuantity(),
+                    order.getPriceCent(),
+                    order.getAmountCent(),
+                    order.getStatus().name(),
+                    order.getOfflinePayStatus().name(),
+                    order.getRemark(),
+                    toTimestamp(order.getCreatedAt()),
+                    toTimestamp(order.getUpdatedAt())
+            );
+        }
+    }
+
+    private GroupBuyOrderResponse mapOrder(ResultSet rs, int rowNum) throws SQLException {
+        GroupBuyOrderResponse order = new GroupBuyOrderResponse();
+        order.setId(rs.getLong("id"));
+        order.setOrderNo(rs.getString("order_no"));
+        order.setTenantId(rs.getLong("tenant_id"));
+        order.setCommunityId(rs.getLong("community_id"));
+        order.setGroupBuyId(rs.getLong("group_buy_id"));
+        order.setGroupBuyTitle(rs.getString("group_buy_title"));
+        order.setCoverUrl(rs.getString("cover_url"));
+        order.setUserId(rs.getLong("user_id"));
+        long addressId = rs.getLong("address_id");
+        order.setAddressId(rs.wasNull() ? null : addressId);
+        order.setDeliveryMethod(DeliveryMethod.valueOf(rs.getString("delivery_method")));
+        order.setQuantity(rs.getInt("quantity"));
+        order.setPriceCent(rs.getInt("price_cent"));
+        order.setAmountCent(rs.getInt("amount_cent"));
+        order.setStatus(GroupBuyOrderStatus.valueOf(rs.getString("status")));
+        order.setOfflinePayStatus(OfflinePayStatus.valueOf(rs.getString("offline_pay_status")));
+        order.setRemark(rs.getString("remark"));
+        order.setCreatedAt(rs.getTimestamp("created_at").toLocalDateTime());
+        order.setUpdatedAt(rs.getTimestamp("updated_at").toLocalDateTime());
+        return order;
+    }
+
+    private Timestamp toTimestamp(LocalDateTime value) {
+        return value == null ? null : Timestamp.valueOf(value);
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/notice/NoticeController.java b/backend/src/main/java/com/linhelp/notice/NoticeController.java
index 385cdf3..dfbce41 100644
--- a/backend/src/main/java/com/linhelp/notice/NoticeController.java
+++ b/backend/src/main/java/com/linhelp/notice/NoticeController.java
@@ -69,11 +69,13 @@ public class NoticeController {
 
     @GetMapping("/api/mini/notices")
     public ApiResponse<List<NoticeResponse>> miniList() {
-        return ApiResponse.ok(noticeService.listPublished(1L));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(noticeService.listPublished(user.getCommunityId()));
     }
 
     @GetMapping("/api/mini/notices/{id}")
     public ApiResponse<NoticeResponse> miniDetail(@PathVariable Long id) {
-        return ApiResponse.ok(noticeService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(noticeService.detailPublished(user.getCommunityId(), id));
     }
 }
diff --git a/backend/src/main/java/com/linhelp/notice/NoticeService.java b/backend/src/main/java/com/linhelp/notice/NoticeService.java
index 74161f2..2ba32a1 100644
--- a/backend/src/main/java/com/linhelp/notice/NoticeService.java
+++ b/backend/src/main/java/com/linhelp/notice/NoticeService.java
@@ -69,6 +69,14 @@ public class NoticeService {
         return require(id);
     }
 
+    public synchronized NoticeResponse detailPublished(Long communityId, Long id) {
+        NoticeResponse notice = require(id);
+        if (!communityId.equals(notice.getCommunityId()) || !STATUS_PUBLISHED.equals(notice.getStatus())) {
+            throw new BizException(404, "公告不存在");
+        }
+        return notice;
+    }
+
     public synchronized List<NoticeResponse> listPublished(Long communityId) {
         List<NoticeResponse> result = new ArrayList<NoticeResponse>();
         for (NoticeResponse notice : notices.values()) {
diff --git a/backend/src/main/java/com/linhelp/order/GoodsOrderController.java b/backend/src/main/java/com/linhelp/order/GoodsOrderController.java
index 8313f88..bb7c1d4 100644
--- a/backend/src/main/java/com/linhelp/order/GoodsOrderController.java
+++ b/backend/src/main/java/com/linhelp/order/GoodsOrderController.java
@@ -1,6 +1,7 @@
 package com.linhelp.order;
 
 import com.linhelp.common.api.ApiResponse;
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.GoodsOrderStatus;
 import com.linhelp.common.security.AuthService;
 import com.linhelp.common.security.CurrentUser;
@@ -42,12 +43,14 @@ public class GoodsOrderController {
 
     @GetMapping("/api/mini/goods-orders/{id}")
     public ApiResponse<GoodsOrderResponse> miniDetail(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.detailMine(user.getUserId(), id));
     }
 
     @PutMapping("/api/mini/goods-orders/{id}/cancel")
     public ApiResponse<GoodsOrderResponse> cancel(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.cancel(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.cancelMine(user.getUserId(), id));
     }
 
     @GetMapping("/api/admin/goods-orders")
@@ -57,39 +60,61 @@ public class GoodsOrderController {
         return ApiResponse.ok(goodsOrderService.listAdmin(user.getCommunityId(), status));
     }
 
+    @GetMapping("/api/admin/goods-orders/page")
+    @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
+    public ApiResponse<PageResponse<GoodsOrderResponse>> pageAdmin(@RequestParam(required = false) GoodsOrderStatus status,
+                                                                   @RequestParam(required = false) Integer pageNo,
+                                                                   @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.listAdminPage(user.getCommunityId(), status, pageNo, pageSize));
+    }
+
     @GetMapping("/api/admin/goods-orders/{id}")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GoodsOrderResponse> adminDetail(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.detailAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/goods-orders/{id}/confirm")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GoodsOrderResponse> confirm(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.confirm(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.confirmAdmin(user.getCommunityId(), id, user.getUserId()));
     }
 
     @PutMapping("/api/admin/goods-orders/{id}/prepared")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GoodsOrderResponse> markPrepared(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.markPrepared(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.markPreparedAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/goods-orders/{id}/delivering")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GoodsOrderResponse> markDelivering(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.markDelivering(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.markDeliveringAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/goods-orders/{id}/complete")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GoodsOrderResponse> complete(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.complete(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.completeAdmin(user.getCommunityId(), id));
+    }
+
+    @PutMapping("/api/admin/goods-orders/{id}/cancel")
+    @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
+    public ApiResponse<GoodsOrderResponse> adminCancel(@PathVariable Long id) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.cancelAdmin(user.getCommunityId(), id));
     }
 
     @PutMapping("/api/admin/goods-orders/{id}/paid")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<GoodsOrderResponse> markPaid(@PathVariable Long id) {
-        return ApiResponse.ok(goodsOrderService.markPaid(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(goodsOrderService.markPaidAdmin(user.getCommunityId(), id));
     }
 }
diff --git a/backend/src/main/java/com/linhelp/order/GoodsOrderService.java b/backend/src/main/java/com/linhelp/order/GoodsOrderService.java
index f18aab9..f8ec5a1 100644
--- a/backend/src/main/java/com/linhelp/order/GoodsOrderService.java
+++ b/backend/src/main/java/com/linhelp/order/GoodsOrderService.java
@@ -1,11 +1,16 @@
 package com.linhelp.order;
 
+import com.linhelp.common.api.PageResponse;
+import com.linhelp.common.api.PageUtils;
 import com.linhelp.common.enums.DeliveryMethod;
 import com.linhelp.common.enums.GoodsOrderStatus;
 import com.linhelp.common.enums.OfflinePayStatus;
 import com.linhelp.common.exception.BizException;
+import com.linhelp.orderlog.OrderLogService;
 import com.linhelp.product.ProductService;
 import com.linhelp.product.ProductSkuResponse;
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
@@ -17,21 +22,38 @@ import java.util.concurrent.atomic.AtomicLong;
 
 @Service
 public class GoodsOrderService {
+    private static final String BIZ_TYPE = "GOODS_ORDER";
     private final ProductService productService;
+    private final OrderLogService orderLogService;
+    private final GoodsOrderStore store;
     private final AtomicLong orderIds = new AtomicLong(1L);
     private final AtomicLong itemIds = new AtomicLong(1L);
     private final Map<Long, GoodsOrderResponse> orders = new LinkedHashMap<Long, GoodsOrderResponse>();
 
+    @Autowired
+    public GoodsOrderService(ProductService productService,
+                             OrderLogService orderLogService,
+                             ObjectProvider<GoodsOrderStore> storeProvider) {
+        this(productService, orderLogService, storeProvider.getIfAvailable());
+    }
+
     public GoodsOrderService(ProductService productService) {
+        this(productService, new OrderLogService(), (GoodsOrderStore) null);
+    }
+
+    public GoodsOrderService(ProductService productService, OrderLogService orderLogService, GoodsOrderStore store) {
         this.productService = productService;
+        this.orderLogService = orderLogService;
+        this.store = store;
+        loadStoredOrders();
     }
 
     public synchronized GoodsOrderResponse create(Long userId, CreateGoodsOrderRequest request) {
         if (request.getItems() == null || request.getItems().isEmpty()) {
-            throw new BizException("订单商品不能为空");
+            throw new BizException("order items cannot be empty");
         }
         if (request.getDeliveryMethod() != DeliveryMethod.SELF_PICKUP && request.getAddressId() == null) {
-            throw new BizException("配送地址不能为空");
+            throw new BizException("delivery address is required");
         }
 
         Map<Long, Integer> skuQuantities = collectSkuQuantities(request);
@@ -61,6 +83,8 @@ public class GoodsOrderService {
         order.setCreatedAt(LocalDateTime.now());
         order.setUpdatedAt(order.getCreatedAt());
         orders.put(order.getId(), order);
+        writeLog(order, null, order.getStatus().name(), "CREATE", userId, "resident created goods order");
+        persist(order);
         return copyOrder(order);
     }
 
@@ -68,6 +92,14 @@ public class GoodsOrderService {
         return copyOrder(requireOrder(id));
     }
 
+    public synchronized GoodsOrderResponse detailMine(Long userId, Long id) {
+        return copyOrder(requireMine(userId, id));
+    }
+
+    public synchronized GoodsOrderResponse detailAdmin(Long communityId, Long id) {
+        return copyOrder(requireAdmin(communityId, id));
+    }
+
     public synchronized List<GoodsOrderResponse> listMine(Long userId) {
         List<GoodsOrderResponse> result = new ArrayList<GoodsOrderResponse>();
         for (GoodsOrderResponse order : orders.values()) {
@@ -92,36 +124,80 @@ public class GoodsOrderService {
         return result;
     }
 
+    public synchronized PageResponse<GoodsOrderResponse> listAdminPage(Long communityId,
+                                                                       GoodsOrderStatus status,
+                                                                       Integer pageNo,
+                                                                       Integer pageSize) {
+        return PageUtils.page(listAdmin(communityId, status), pageNo, pageSize);
+    }
+
     public synchronized GoodsOrderResponse confirm(Long id) {
         GoodsOrderResponse order = requireOrder(id);
-        move(order, GoodsOrderStatus.PREPARING);
+        move(order, GoodsOrderStatus.PREPARING, "CONFIRM", null, "admin confirmed goods order");
+        return copyOrder(order);
+    }
+
+    public synchronized GoodsOrderResponse confirmAdmin(Long communityId, Long id) {
+        return confirmAdmin(communityId, id, null);
+    }
+
+    public synchronized GoodsOrderResponse confirmAdmin(Long communityId, Long id, Long operatorId) {
+        GoodsOrderResponse order = requireAdmin(communityId, id);
+        move(order, GoodsOrderStatus.PREPARING, "CONFIRM", operatorId, "admin confirmed goods order");
         return copyOrder(order);
     }
 
     public synchronized GoodsOrderResponse markPrepared(Long id) {
         GoodsOrderResponse order = requireOrder(id);
-        GoodsOrderStatus target = DeliveryMethod.SELF_PICKUP.equals(order.getDeliveryMethod())
-                ? GoodsOrderStatus.PENDING_PICKUP
-                : GoodsOrderStatus.PENDING_DELIVERY;
-        move(order, target);
+        move(order, preparedTarget(order), "PREPARED", null, "merchant prepared goods order");
+        return copyOrder(order);
+    }
+
+    public synchronized GoodsOrderResponse markPreparedAdmin(Long communityId, Long id) {
+        GoodsOrderResponse order = requireAdmin(communityId, id);
+        move(order, preparedTarget(order), "PREPARED", null, "merchant prepared goods order");
         return copyOrder(order);
     }
 
     public synchronized GoodsOrderResponse markDelivering(Long id) {
         GoodsOrderResponse order = requireOrder(id);
-        move(order, GoodsOrderStatus.DELIVERING);
+        move(order, GoodsOrderStatus.DELIVERING, "DELIVERING", null, "rider started delivery");
+        return copyOrder(order);
+    }
+
+    public synchronized GoodsOrderResponse markDeliveringAdmin(Long communityId, Long id) {
+        GoodsOrderResponse order = requireAdmin(communityId, id);
+        move(order, GoodsOrderStatus.DELIVERING, "DELIVERING", null, "rider started delivery");
         return copyOrder(order);
     }
 
     public synchronized GoodsOrderResponse complete(Long id) {
         GoodsOrderResponse order = requireOrder(id);
-        move(order, GoodsOrderStatus.COMPLETED);
+        move(order, GoodsOrderStatus.COMPLETED, "COMPLETE", null, "goods order completed");
+        return copyOrder(order);
+    }
+
+    public synchronized GoodsOrderResponse completeAdmin(Long communityId, Long id) {
+        GoodsOrderResponse order = requireAdmin(communityId, id);
+        move(order, GoodsOrderStatus.COMPLETED, "COMPLETE", null, "goods order completed");
         return copyOrder(order);
     }
 
     public synchronized GoodsOrderResponse cancel(Long id) {
         GoodsOrderResponse order = requireOrder(id);
-        move(order, GoodsOrderStatus.CANCELED);
+        move(order, GoodsOrderStatus.CANCELED, "CANCEL", null, "goods order canceled");
+        return copyOrder(order);
+    }
+
+    public synchronized GoodsOrderResponse cancelMine(Long userId, Long id) {
+        GoodsOrderResponse order = requireMine(userId, id);
+        move(order, GoodsOrderStatus.CANCELED, "CANCEL", userId, "resident canceled goods order");
+        return copyOrder(order);
+    }
+
+    public synchronized GoodsOrderResponse cancelAdmin(Long communityId, Long id) {
+        GoodsOrderResponse order = requireAdmin(communityId, id);
+        move(order, GoodsOrderStatus.CANCELED, "CANCEL", null, "admin canceled goods order");
         return copyOrder(order);
     }
 
@@ -129,17 +205,45 @@ public class GoodsOrderService {
         GoodsOrderResponse order = requireOrder(id);
         order.setOfflinePayStatus(OfflinePayStatus.PAID);
         order.setUpdatedAt(LocalDateTime.now());
+        writeLog(order, null, null, "OFFLINE_PAY", null, "goods order marked paid offline");
+        persist(order);
         return copyOrder(order);
     }
 
+    public synchronized GoodsOrderResponse markPaidAdmin(Long communityId, Long id) {
+        GoodsOrderResponse order = requireAdmin(communityId, id);
+        order.setOfflinePayStatus(OfflinePayStatus.PAID);
+        order.setUpdatedAt(LocalDateTime.now());
+        writeLog(order, null, null, "OFFLINE_PAY", null, "goods order marked paid offline");
+        persist(order);
+        return copyOrder(order);
+    }
+
+    private void loadStoredOrders() {
+        if (store == null) {
+            return;
+        }
+        long maxOrderId = 0L;
+        long maxItemId = 0L;
+        for (GoodsOrderResponse order : store.loadAll()) {
+            orders.put(order.getId(), copyOrder(order));
+            maxOrderId = Math.max(maxOrderId, order.getId());
+            for (GoodsOrderItemResponse item : order.getItems()) {
+                maxItemId = Math.max(maxItemId, item.getId());
+            }
+        }
+        orderIds.set(maxOrderId + 1L);
+        itemIds.set(maxItemId + 1L);
+    }
+
     private Map<Long, Integer> collectSkuQuantities(CreateGoodsOrderRequest request) {
         Map<Long, Integer> skuQuantities = new LinkedHashMap<Long, Integer>();
         for (CreateGoodsOrderItemRequest item : request.getItems()) {
             if (item.getSkuId() == null || item.getProductId() == null) {
-                throw new BizException("订单商品信息不完整");
+                throw new BizException("order item is incomplete");
             }
             if (item.getQuantity() <= 0) {
-                throw new BizException("购买数量必须大于0");
+                throw new BizException("quantity must be positive");
             }
             Integer existing = skuQuantities.get(item.getSkuId());
             skuQuantities.put(item.getSkuId(), (existing == null ? 0 : existing) + item.getQuantity());
@@ -152,10 +256,10 @@ public class GoodsOrderService {
         for (Map.Entry<Long, Integer> entry : skuQuantities.entrySet()) {
             ProductSkuResponse sku = productService.getSku(entry.getKey());
             if (!sku.isEnabled()) {
-                throw new BizException("商品规格已下架");
+                throw new BizException("sku is disabled");
             }
             if (sku.getStock() < entry.getValue()) {
-                throw new BizException("库存不足");
+                throw new BizException("stock is insufficient");
             }
             snapshots.put(entry.getKey(), sku);
         }
@@ -198,18 +302,72 @@ public class GoodsOrderService {
         return 300;
     }
 
-    private void move(GoodsOrderResponse order, GoodsOrderStatus target) {
+    private GoodsOrderStatus preparedTarget(GoodsOrderResponse order) {
+        return DeliveryMethod.SELF_PICKUP.equals(order.getDeliveryMethod())
+                ? GoodsOrderStatus.PENDING_PICKUP
+                : GoodsOrderStatus.PENDING_DELIVERY;
+    }
+
+    private void move(GoodsOrderResponse order,
+                      GoodsOrderStatus target,
+                      String action,
+                      Long operatorId,
+                      String note) {
         if (!order.getStatus().canMoveTo(target)) {
-            throw new BizException("订单状态不允许操作");
+            throw new BizException("order status does not allow this action");
         }
+        GoodsOrderStatus from = order.getStatus();
         order.setStatus(target);
         order.setUpdatedAt(LocalDateTime.now());
+        writeLog(order, from.name(), target.name(), action, operatorId, note);
+        persist(order);
+    }
+
+    private void writeLog(GoodsOrderResponse order,
+                          String fromStatus,
+                          String toStatus,
+                          String action,
+                          Long operatorId,
+                          String note) {
+        orderLogService.record(
+                order.getTenantId(),
+                order.getCommunityId(),
+                BIZ_TYPE,
+                order.getId(),
+                fromStatus,
+                toStatus,
+                action,
+                operatorId,
+                note
+        );
+    }
+
+    private void persist(GoodsOrderResponse order) {
+        if (store != null) {
+            store.save(copyOrder(order));
+        }
     }
 
     private GoodsOrderResponse requireOrder(Long id) {
         GoodsOrderResponse order = orders.get(id);
         if (order == null) {
-            throw new BizException(404, "订单不存在");
+            throw new BizException(404, "goods order not found");
+        }
+        return order;
+    }
+
+    private GoodsOrderResponse requireMine(Long userId, Long id) {
+        GoodsOrderResponse order = requireOrder(id);
+        if (!userId.equals(order.getUserId())) {
+            throw new BizException(404, "goods order not found");
+        }
+        return order;
+    }
+
+    private GoodsOrderResponse requireAdmin(Long communityId, Long id) {
+        GoodsOrderResponse order = requireOrder(id);
+        if (!communityId.equals(order.getCommunityId())) {
+            throw new BizException(404, "goods order not found");
         }
         return order;
     }
@@ -239,6 +397,9 @@ public class GoodsOrderService {
 
     private List<GoodsOrderItemResponse> copyItems(List<GoodsOrderItemResponse> sourceItems) {
         List<GoodsOrderItemResponse> items = new ArrayList<GoodsOrderItemResponse>();
+        if (sourceItems == null) {
+            return items;
+        }
         for (GoodsOrderItemResponse source : sourceItems) {
             GoodsOrderItemResponse target = new GoodsOrderItemResponse();
             target.setId(source.getId());
diff --git a/backend/src/main/java/com/linhelp/order/GoodsOrderStore.java b/backend/src/main/java/com/linhelp/order/GoodsOrderStore.java
new file mode 100644
index 0000000..2aa762e
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/order/GoodsOrderStore.java
@@ -0,0 +1,9 @@
+package com.linhelp.order;
+
+import java.util.List;
+
+public interface GoodsOrderStore {
+    List<GoodsOrderResponse> loadAll();
+
+    void save(GoodsOrderResponse order);
+}
diff --git a/backend/src/main/java/com/linhelp/order/JdbcGoodsOrderStore.java b/backend/src/main/java/com/linhelp/order/JdbcGoodsOrderStore.java
new file mode 100644
index 0000000..ce156f1
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/order/JdbcGoodsOrderStore.java
@@ -0,0 +1,185 @@
+package com.linhelp.order;
+
+import com.linhelp.common.enums.DeliveryMethod;
+import com.linhelp.common.enums.GoodsOrderStatus;
+import com.linhelp.common.enums.OfflinePayStatus;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.dao.DataAccessException;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+@Repository
+@ConditionalOnBean(JdbcTemplate.class)
+public class JdbcGoodsOrderStore implements GoodsOrderStore {
+    private final JdbcTemplate jdbcTemplate;
+
+    public JdbcGoodsOrderStore(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @Override
+    public List<GoodsOrderResponse> loadAll() {
+        List<GoodsOrderResponse> orders = jdbcTemplate.query(
+                "SELECT id, order_no, tenant_id, community_id, user_id, merchant_id, address_id, delivery_method, scheduled_time, " +
+                        "status, offline_pay_status, total_amount_cent, delivery_fee_cent, payable_amount_cent, remark, cancel_reason, created_at, updated_at " +
+                        "FROM goods_order WHERE deleted = 0 ORDER BY id ASC",
+                this::mapOrder
+        );
+        Map<Long, GoodsOrderResponse> byId = new LinkedHashMap<Long, GoodsOrderResponse>();
+        for (GoodsOrderResponse order : orders) {
+            byId.put(order.getId(), order);
+        }
+        if (!byId.isEmpty()) {
+            List<GoodsOrderItemResponse> items = jdbcTemplate.query(
+                    "SELECT id, order_id, product_id, sku_id, product_name, sku_name, quantity, price_cent, amount_cent " +
+                            "FROM goods_order_item WHERE order_id IN (" + placeholders(byId.size()) + ") ORDER BY id ASC",
+                    this::mapItem,
+                    byId.keySet().toArray()
+            );
+            for (GoodsOrderItemResponse item : items) {
+                GoodsOrderResponse order = byId.get(item.getOrderId());
+                if (order != null) {
+                    order.getItems().add(item);
+                }
+            }
+        }
+        return new ArrayList<GoodsOrderResponse>(byId.values());
+    }
+
+    @Override
+    public void save(GoodsOrderResponse order) {
+        int updated = jdbcTemplate.update(
+                "UPDATE goods_order SET order_no = ?, tenant_id = ?, community_id = ?, user_id = ?, merchant_id = ?, address_id = ?, " +
+                        "delivery_method = ?, scheduled_time = ?, status = ?, offline_pay_status = ?, total_amount_cent = ?, delivery_fee_cent = ?, " +
+                        "payable_amount_cent = ?, remark = ?, updated_at = ? WHERE id = ?",
+                order.getOrderNo(),
+                order.getTenantId(),
+                order.getCommunityId(),
+                order.getUserId(),
+                order.getMerchantId(),
+                order.getAddressId(),
+                order.getDeliveryMethod().name(),
+                toTimestamp(order.getScheduledTime()),
+                order.getStatus().name(),
+                order.getOfflinePayStatus().name(),
+                order.getTotalAmountCent(),
+                order.getDeliveryFeeCent(),
+                order.getPayableAmountCent(),
+                order.getRemark(),
+                toTimestamp(order.getUpdatedAt()),
+                order.getId()
+        );
+        if (updated == 0) {
+            jdbcTemplate.update(
+                    "INSERT INTO goods_order (id, order_no, tenant_id, community_id, user_id, merchant_id, address_id, delivery_method, scheduled_time, " +
+                            "status, offline_pay_status, total_amount_cent, delivery_fee_cent, payable_amount_cent, remark, created_at, updated_at) " +
+                            "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+                    order.getId(),
+                    order.getOrderNo(),
+                    order.getTenantId(),
+                    order.getCommunityId(),
+                    order.getUserId(),
+                    order.getMerchantId(),
+                    order.getAddressId(),
+                    order.getDeliveryMethod().name(),
+                    toTimestamp(order.getScheduledTime()),
+                    order.getStatus().name(),
+                    order.getOfflinePayStatus().name(),
+                    order.getTotalAmountCent(),
+                    order.getDeliveryFeeCent(),
+                    order.getPayableAmountCent(),
+                    order.getRemark(),
+                    toTimestamp(order.getCreatedAt()),
+                    toTimestamp(order.getUpdatedAt())
+            );
+        }
+        replaceItems(order);
+    }
+
+    private void replaceItems(GoodsOrderResponse order) {
+        jdbcTemplate.update("DELETE FROM goods_order_item WHERE order_id = ?", order.getId());
+        for (GoodsOrderItemResponse item : order.getItems()) {
+            try {
+                jdbcTemplate.update(
+                        "INSERT INTO goods_order_item (id, tenant_id, community_id, order_id, product_id, sku_id, product_name, sku_name, quantity, price_cent, amount_cent) " +
+                                "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+                        item.getId(),
+                        order.getTenantId(),
+                        order.getCommunityId(),
+                        order.getId(),
+                        item.getProductId(),
+                        item.getSkuId(),
+                        item.getProductName(),
+                        item.getSkuName(),
+                        item.getQuantity(),
+                        item.getPriceCent(),
+                        item.getAmountCent()
+                );
+            } catch (DataAccessException ex) {
+                throw ex;
+            }
+        }
+    }
+
+    private GoodsOrderResponse mapOrder(ResultSet rs, int rowNum) throws SQLException {
+        GoodsOrderResponse order = new GoodsOrderResponse();
+        order.setId(rs.getLong("id"));
+        order.setOrderNo(rs.getString("order_no"));
+        order.setTenantId(rs.getLong("tenant_id"));
+        order.setCommunityId(rs.getLong("community_id"));
+        order.setUserId(rs.getLong("user_id"));
+        order.setMerchantId(rs.getLong("merchant_id"));
+        long addressId = rs.getLong("address_id");
+        order.setAddressId(rs.wasNull() ? null : addressId);
+        order.setDeliveryMethod(DeliveryMethod.valueOf(rs.getString("delivery_method")));
+        Timestamp scheduledTime = rs.getTimestamp("scheduled_time");
+        order.setScheduledTime(scheduledTime == null ? null : scheduledTime.toLocalDateTime());
+        order.setStatus(GoodsOrderStatus.valueOf(rs.getString("status")));
+        order.setOfflinePayStatus(OfflinePayStatus.valueOf(rs.getString("offline_pay_status")));
+        order.setTotalAmountCent(rs.getInt("total_amount_cent"));
+        order.setDeliveryFeeCent(rs.getInt("delivery_fee_cent"));
+        order.setPayableAmountCent(rs.getInt("payable_amount_cent"));
+        order.setRemark(rs.getString("remark"));
+        order.setCreatedAt(rs.getTimestamp("created_at").toLocalDateTime());
+        order.setUpdatedAt(rs.getTimestamp("updated_at").toLocalDateTime());
+        return order;
+    }
+
+    private GoodsOrderItemResponse mapItem(ResultSet rs, int rowNum) throws SQLException {
+        GoodsOrderItemResponse item = new GoodsOrderItemResponse();
+        item.setId(rs.getLong("id"));
+        item.setOrderId(rs.getLong("order_id"));
+        item.setProductId(rs.getLong("product_id"));
+        item.setSkuId(rs.getLong("sku_id"));
+        item.setProductName(rs.getString("product_name"));
+        item.setSkuName(rs.getString("sku_name"));
+        item.setQuantity(rs.getInt("quantity"));
+        item.setPriceCent(rs.getInt("price_cent"));
+        item.setAmountCent(rs.getInt("amount_cent"));
+        return item;
+    }
+
+    private String placeholders(int size) {
+        StringBuilder builder = new StringBuilder();
+        for (int i = 0; i < size; i++) {
+            if (i > 0) {
+                builder.append(',');
+            }
+            builder.append('?');
+        }
+        return builder.toString();
+    }
+
+    private Timestamp toTimestamp(LocalDateTime value) {
+        return value == null ? null : Timestamp.valueOf(value);
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/orderlog/JdbcOrderLogStore.java b/backend/src/main/java/com/linhelp/orderlog/JdbcOrderLogStore.java
new file mode 100644
index 0000000..975f25c
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/orderlog/JdbcOrderLogStore.java
@@ -0,0 +1,66 @@
+package com.linhelp.orderlog;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Repository;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.util.List;
+
+@Repository
+@ConditionalOnBean(JdbcTemplate.class)
+public class JdbcOrderLogStore implements OrderLogStore {
+    private final JdbcTemplate jdbcTemplate;
+
+    public JdbcOrderLogStore(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @Override
+    public void save(OrderLogRecord record) {
+        jdbcTemplate.update(
+                "INSERT INTO order_log (tenant_id, community_id, biz_type, biz_order_id, from_status, to_status, action, operator_id, note, created_at) " +
+                        "VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
+                record.getTenantId(),
+                record.getCommunityId(),
+                record.getBizType(),
+                record.getBizOrderId(),
+                record.getFromStatus(),
+                record.getToStatus(),
+                record.getAction(),
+                record.getOperatorId(),
+                record.getNote(),
+                Timestamp.valueOf(record.getCreatedAt())
+        );
+    }
+
+    @Override
+    public List<OrderLogRecord> list(String bizType, Long bizOrderId) {
+        return jdbcTemplate.query(
+                "SELECT id, tenant_id, community_id, biz_type, biz_order_id, from_status, to_status, action, operator_id, note, created_at " +
+                        "FROM order_log WHERE biz_type = ? AND biz_order_id = ? ORDER BY id ASC",
+                this::mapRecord,
+                bizType,
+                bizOrderId
+        );
+    }
+
+    private OrderLogRecord mapRecord(ResultSet rs, int rowNum) throws SQLException {
+        OrderLogRecord record = new OrderLogRecord();
+        record.setId(rs.getLong("id"));
+        record.setTenantId(rs.getLong("tenant_id"));
+        record.setCommunityId(rs.getLong("community_id"));
+        record.setBizType(rs.getString("biz_type"));
+        record.setBizOrderId(rs.getLong("biz_order_id"));
+        record.setFromStatus(rs.getString("from_status"));
+        record.setToStatus(rs.getString("to_status"));
+        record.setAction(rs.getString("action"));
+        long operatorId = rs.getLong("operator_id");
+        record.setOperatorId(rs.wasNull() ? null : operatorId);
+        record.setNote(rs.getString("note"));
+        record.setCreatedAt(rs.getTimestamp("created_at").toLocalDateTime());
+        return record;
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/orderlog/OrderLogRecord.java b/backend/src/main/java/com/linhelp/orderlog/OrderLogRecord.java
new file mode 100644
index 0000000..fb096d4
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/orderlog/OrderLogRecord.java
@@ -0,0 +1,105 @@
+package com.linhelp.orderlog;
+
+import java.time.LocalDateTime;
+
+public class OrderLogRecord {
+    private Long id;
+    private Long tenantId;
+    private Long communityId;
+    private String bizType;
+    private Long bizOrderId;
+    private String fromStatus;
+    private String toStatus;
+    private String action;
+    private Long operatorId;
+    private String note;
+    private LocalDateTime createdAt;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getTenantId() {
+        return tenantId;
+    }
+
+    public void setTenantId(Long tenantId) {
+        this.tenantId = tenantId;
+    }
+
+    public Long getCommunityId() {
+        return communityId;
+    }
+
+    public void setCommunityId(Long communityId) {
+        this.communityId = communityId;
+    }
+
+    public String getBizType() {
+        return bizType;
+    }
+
+    public void setBizType(String bizType) {
+        this.bizType = bizType;
+    }
+
+    public Long getBizOrderId() {
+        return bizOrderId;
+    }
+
+    public void setBizOrderId(Long bizOrderId) {
+        this.bizOrderId = bizOrderId;
+    }
+
+    public String getFromStatus() {
+        return fromStatus;
+    }
+
+    public void setFromStatus(String fromStatus) {
+        this.fromStatus = fromStatus;
+    }
+
+    public String getToStatus() {
+        return toStatus;
+    }
+
+    public void setToStatus(String toStatus) {
+        this.toStatus = toStatus;
+    }
+
+    public String getAction() {
+        return action;
+    }
+
+    public void setAction(String action) {
+        this.action = action;
+    }
+
+    public Long getOperatorId() {
+        return operatorId;
+    }
+
+    public void setOperatorId(Long operatorId) {
+        this.operatorId = operatorId;
+    }
+
+    public String getNote() {
+        return note;
+    }
+
+    public void setNote(String note) {
+        this.note = note;
+    }
+
+    public LocalDateTime getCreatedAt() {
+        return createdAt;
+    }
+
+    public void setCreatedAt(LocalDateTime createdAt) {
+        this.createdAt = createdAt;
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/orderlog/OrderLogService.java b/backend/src/main/java/com/linhelp/orderlog/OrderLogService.java
new file mode 100644
index 0000000..676e3b6
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/orderlog/OrderLogService.java
@@ -0,0 +1,99 @@
+package com.linhelp.orderlog;
+
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.stereotype.Service;
+
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicLong;
+
+@Service
+public class OrderLogService {
+    private final AtomicLong ids = new AtomicLong(1L);
+    private final Map<String, List<OrderLogRecord>> records = new LinkedHashMap<String, List<OrderLogRecord>>();
+    private final OrderLogStore store;
+
+    public OrderLogService(ObjectProvider<OrderLogStore> storeProvider) {
+        this(storeProvider.getIfAvailable());
+    }
+
+    public OrderLogService() {
+        this((OrderLogStore) null);
+    }
+
+    public OrderLogService(OrderLogStore store) {
+        this.store = store;
+    }
+
+    public synchronized OrderLogRecord record(Long tenantId,
+                                              Long communityId,
+                                              String bizType,
+                                              Long bizOrderId,
+                                              String fromStatus,
+                                              String toStatus,
+                                              String action,
+                                              Long operatorId,
+                                              String note) {
+        OrderLogRecord record = new OrderLogRecord();
+        record.setId(ids.getAndIncrement());
+        record.setTenantId(tenantId);
+        record.setCommunityId(communityId);
+        record.setBizType(bizType);
+        record.setBizOrderId(bizOrderId);
+        record.setFromStatus(fromStatus);
+        record.setToStatus(toStatus);
+        record.setAction(action);
+        record.setOperatorId(operatorId);
+        record.setNote(note);
+        record.setCreatedAt(LocalDateTime.now());
+        if (store != null) {
+            store.save(copy(record));
+        } else {
+            List<OrderLogRecord> bucket = records.get(key(bizType, bizOrderId));
+            if (bucket == null) {
+                bucket = new ArrayList<OrderLogRecord>();
+                records.put(key(bizType, bizOrderId), bucket);
+            }
+            bucket.add(copy(record));
+        }
+        return copy(record);
+    }
+
+    public synchronized List<OrderLogRecord> list(String bizType, Long bizOrderId) {
+        if (store != null) {
+            return store.list(bizType, bizOrderId);
+        }
+        List<OrderLogRecord> bucket = records.get(key(bizType, bizOrderId));
+        if (bucket == null) {
+            return new ArrayList<OrderLogRecord>();
+        }
+        List<OrderLogRecord> result = new ArrayList<OrderLogRecord>();
+        for (OrderLogRecord record : bucket) {
+            result.add(copy(record));
+        }
+        return result;
+    }
+
+    private String key(String bizType, Long bizOrderId) {
+        return bizType + "#" + bizOrderId;
+    }
+
+    private OrderLogRecord copy(OrderLogRecord source) {
+        OrderLogRecord target = new OrderLogRecord();
+        target.setId(source.getId());
+        target.setTenantId(source.getTenantId());
+        target.setCommunityId(source.getCommunityId());
+        target.setBizType(source.getBizType());
+        target.setBizOrderId(source.getBizOrderId());
+        target.setFromStatus(source.getFromStatus());
+        target.setToStatus(source.getToStatus());
+        target.setAction(source.getAction());
+        target.setOperatorId(source.getOperatorId());
+        target.setNote(source.getNote());
+        target.setCreatedAt(source.getCreatedAt());
+        return target;
+    }
+}
diff --git a/backend/src/main/java/com/linhelp/orderlog/OrderLogStore.java b/backend/src/main/java/com/linhelp/orderlog/OrderLogStore.java
new file mode 100644
index 0000000..4636718
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/orderlog/OrderLogStore.java
@@ -0,0 +1,9 @@
+package com.linhelp.orderlog;
+
+import java.util.List;
+
+public interface OrderLogStore {
+    void save(OrderLogRecord record);
+
+    List<OrderLogRecord> list(String bizType, Long bizOrderId);
+}
diff --git a/backend/src/main/java/com/linhelp/product/ProductController.java b/backend/src/main/java/com/linhelp/product/ProductController.java
index c2a8cd4..b4aae01 100644
--- a/backend/src/main/java/com/linhelp/product/ProductController.java
+++ b/backend/src/main/java/com/linhelp/product/ProductController.java
@@ -1,6 +1,7 @@
 package com.linhelp.product;
 
 import com.linhelp.common.api.ApiResponse;
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.security.AuthService;
 import com.linhelp.common.security.CurrentUser;
 import com.linhelp.common.security.RequireRole;
@@ -70,6 +71,17 @@ public class ProductController {
         return ApiResponse.ok(productService.listAdmin(user.getCommunityId(), merchantId, categoryId));
     }
 
+    @GetMapping("/api/admin/products/page")
+    @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
+    public ApiResponse<PageResponse<ProductResponse>> pageAdminProducts(@RequestParam(required = false) Long merchantId,
+                                                                        @RequestParam(required = false) Long categoryId,
+                                                                        @RequestParam(required = false) String keyword,
+                                                                        @RequestParam(required = false) Integer pageNo,
+                                                                        @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(productService.listAdminPage(user.getCommunityId(), merchantId, categoryId, keyword, pageNo, pageSize));
+    }
+
     @PostMapping("/api/admin/products")
     @RequireRole({"PLATFORM_ADMIN", "COMMUNITY_ADMIN", "MERCHANT"})
     public ApiResponse<ProductResponse> createProduct(@Valid @RequestBody ProductRequest request) {
@@ -144,8 +156,18 @@ public class ProductController {
         return ApiResponse.ok(productService.listMini(user.getCommunityId(), categoryId));
     }
 
+    @GetMapping("/api/mini/products/page")
+    public ApiResponse<PageResponse<ProductResponse>> pageMiniProducts(@RequestParam(required = false) Long categoryId,
+                                                                       @RequestParam(required = false) String keyword,
+                                                                       @RequestParam(required = false) Integer pageNo,
+                                                                       @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(productService.listMiniPage(user.getCommunityId(), categoryId, keyword, pageNo, pageSize));
+    }
+
     @GetMapping("/api/mini/products/{id}")
     public ApiResponse<ProductResponse> miniProductDetail(@PathVariable Long id) {
-        return ApiResponse.ok(productService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(productService.detailMini(user.getCommunityId(), id));
     }
 }
diff --git a/backend/src/main/java/com/linhelp/product/ProductService.java b/backend/src/main/java/com/linhelp/product/ProductService.java
index e9c33b9..58fb97c 100644
--- a/backend/src/main/java/com/linhelp/product/ProductService.java
+++ b/backend/src/main/java/com/linhelp/product/ProductService.java
@@ -1,5 +1,7 @@
 package com.linhelp.product;
 
+import com.linhelp.common.api.PageResponse;
+import com.linhelp.common.api.PageUtils;
 import com.linhelp.common.exception.BizException;
 import org.springframework.stereotype.Service;
 
@@ -116,14 +118,39 @@ public class ProductService {
         return copyProduct(requireProduct(id));
     }
 
+    public synchronized ProductResponse detailMini(Long communityId, Long id) {
+        ProductResponse product = requireProduct(id);
+        if (!communityId.equals(product.getCommunityId()) || !STATUS_ON_SHELF.equals(product.getStatus())) {
+            throw new BizException(404, "商品不存在");
+        }
+        return copyProduct(product);
+    }
+
     public synchronized List<ProductResponse> listAdmin(Long communityId, Long merchantId, Long categoryId) {
         return listProducts(communityId, merchantId, categoryId, false);
     }
 
+    public synchronized PageResponse<ProductResponse> listAdminPage(Long communityId,
+                                                                    Long merchantId,
+                                                                    Long categoryId,
+                                                                    String keyword,
+                                                                    Integer pageNo,
+                                                                    Integer pageSize) {
+        return PageUtils.page(listProducts(communityId, merchantId, categoryId, false, keyword), pageNo, pageSize);
+    }
+
     public synchronized List<ProductResponse> listMini(Long communityId, Long categoryId) {
         return listProducts(communityId, null, categoryId, true);
     }
 
+    public synchronized PageResponse<ProductResponse> listMiniPage(Long communityId,
+                                                                   Long categoryId,
+                                                                   String keyword,
+                                                                   Integer pageNo,
+                                                                   Integer pageSize) {
+        return PageUtils.page(listProducts(communityId, null, categoryId, true, keyword), pageNo, pageSize);
+    }
+
     public synchronized ProductSkuResponse addSku(Long productId, ProductSkuRequest request) {
         ProductResponse product = requireProduct(productId);
         ProductSkuResponse sku = new ProductSkuResponse();
@@ -207,6 +234,10 @@ public class ProductService {
     }
 
     private List<ProductResponse> listProducts(Long communityId, Long merchantId, Long categoryId, boolean onlyOnShelf) {
+        return listProducts(communityId, merchantId, categoryId, onlyOnShelf, null);
+    }
+
+    private List<ProductResponse> listProducts(Long communityId, Long merchantId, Long categoryId, boolean onlyOnShelf, String keyword) {
         List<ProductResponse> result = new ArrayList<ProductResponse>();
         for (ProductResponse product : products.values()) {
             if (!communityId.equals(product.getCommunityId())) {
@@ -221,11 +252,26 @@ public class ProductService {
             if (onlyOnShelf && !STATUS_ON_SHELF.equals(product.getStatus())) {
                 continue;
             }
+            if (!matchesKeyword(product, keyword)) {
+                continue;
+            }
             result.add(copyProduct(product));
         }
         return result;
     }
 
+    private boolean matchesKeyword(ProductResponse product, String keyword) {
+        if (keyword == null || keyword.trim().isEmpty()) {
+            return true;
+        }
+        String normalized = keyword.trim().toLowerCase();
+        return contains(product.getName(), normalized) || contains(product.getDescription(), normalized);
+    }
+
+    private boolean contains(String value, String keyword) {
+        return value != null && value.toLowerCase().contains(keyword);
+    }
+
     private ProductCategoryResponse requireCategory(Long id) {
         ProductCategoryResponse category = categories.get(id);
         if (category == null) {
diff --git a/backend/src/main/java/com/linhelp/secondhand/SecondGoodsController.java b/backend/src/main/java/com/linhelp/secondhand/SecondGoodsController.java
index a145f42..7d6f20b 100644
--- a/backend/src/main/java/com/linhelp/secondhand/SecondGoodsController.java
+++ b/backend/src/main/java/com/linhelp/secondhand/SecondGoodsController.java
@@ -1,6 +1,7 @@
 package com.linhelp.secondhand;
 
 import com.linhelp.common.api.ApiResponse;
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.SecondGoodsStatus;
 import com.linhelp.common.security.AuthService;
 import com.linhelp.common.security.CurrentUser;
@@ -57,9 +58,19 @@ public class SecondGoodsController {
         return ApiResponse.ok(secondGoodsService.listPublic(user.getCommunityId(), category));
     }
 
+    @GetMapping("/api/mini/second-goods/page")
+    public ApiResponse<PageResponse<SecondGoodsResponse>> pagePublic(@RequestParam(required = false) String category,
+                                                                     @RequestParam(required = false) String keyword,
+                                                                     @RequestParam(required = false) Integer pageNo,
+                                                                     @RequestParam(required = false) Integer pageSize) {
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(secondGoodsService.listPublicPage(user.getCommunityId(), category, keyword, pageNo, pageSize));
+    }
+
     @GetMapping("/api/mini/second-goods/{id}")
     public ApiResponse<SecondGoodsResponse> detail(@PathVariable Long id) {
-        return ApiResponse.ok(secondGoodsService.detail(id));
+        CurrentUser user = authService.currentUser();
+        return ApiResponse.ok(secondGoodsService.detailPublic(user.getCommunityId(), id));
     }
 
     @PostMapping("/api/mini/second-goods")
diff --git a/backend/src/main/java/com/linhelp/secondhand/SecondGoodsService.java b/backend/src/main/java/com/linhelp/secondhand/SecondGoodsService.java
index e64de3b..6ed7db8 100644
--- a/backend/src/main/java/com/linhelp/secondhand/SecondGoodsService.java
+++ b/backend/src/main/java/com/linhelp/secondhand/SecondGoodsService.java
@@ -1,5 +1,7 @@
 package com.linhelp.secondhand;
 
+import com.linhelp.common.api.PageResponse;
+import com.linhelp.common.api.PageUtils;
 import com.linhelp.common.enums.SecondGoodsStatus;
 import com.linhelp.common.exception.BizException;
 import org.springframework.stereotype.Service;
@@ -47,6 +49,30 @@ public class SecondGoodsService {
         return result;
     }
 
+    public synchronized PageResponse<SecondGoodsResponse> listPublicPage(Long communityId,
+                                                                         String category,
+                                                                         String keyword,
+                                                                         Integer pageNo,
+                                                                         Integer pageSize) {
+        List<SecondGoodsResponse> result = new ArrayList<SecondGoodsResponse>();
+        for (SecondGoodsResponse item : goods.values()) {
+            if (!communityId.equals(item.getCommunityId())) {
+                continue;
+            }
+            if (category != null && !category.equals(item.getCategory())) {
+                continue;
+            }
+            if (SecondGoodsStatus.PUBLISHED != item.getStatus()) {
+                continue;
+            }
+            if (!matchesKeyword(item, keyword)) {
+                continue;
+            }
+            result.add(copy(item));
+        }
+        return PageUtils.page(result, pageNo, pageSize);
+    }
+
     public synchronized List<SecondGoodsResponse> listAdmin(Long communityId, SecondGoodsStatus status) {
         List<SecondGoodsResponse> result = new ArrayList<SecondGoodsResponse>();
         for (SecondGoodsResponse item : goods.values()) {
@@ -65,6 +91,14 @@ public class SecondGoodsService {
         return copy(require(id));
     }
 
+    public synchronized SecondGoodsResponse detailPublic(Long communityId, Long id) {
+        SecondGoodsResponse item = require(id);
+        if (!communityId.equals(item.getCommunityId()) || SecondGoodsStatus.PUBLISHED != item.getStatus()) {
+            throw new BizException(404, "闲置不存在");
+        }
+        return copy(item);
+    }
+
     public synchronized SecondGoodsResponse approve(Long id) {
         SecondGoodsResponse item = require(id);
         item.setStatus(SecondGoodsStatus.PUBLISHED);
@@ -136,6 +170,20 @@ public class SecondGoodsService {
         return item;
     }
 
+    private boolean matchesKeyword(SecondGoodsResponse item, String keyword) {
+        if (keyword == null || keyword.trim().isEmpty()) {
+            return true;
+        }
+        String normalized = keyword.trim().toLowerCase();
+        return contains(item.getTitle(), normalized)
+                || contains(item.getDescription(), normalized)
+                || contains(item.getCategory(), normalized);
+    }
+
+    private boolean contains(String value, String keyword) {
+        return value != null && value.toLowerCase().contains(keyword);
+    }
+
     private void copyFields(SecondGoodsRequest request, SecondGoodsResponse response) {
         response.setTitle(request.getTitle());
         response.setImageUrls(request.getImageUrls() == null
diff --git a/backend/src/main/java/com/linhelp/storage/FileStorageService.java b/backend/src/main/java/com/linhelp/storage/FileStorageService.java
index a4c5735..69bf88c 100644
--- a/backend/src/main/java/com/linhelp/storage/FileStorageService.java
+++ b/backend/src/main/java/com/linhelp/storage/FileStorageService.java
@@ -1,9 +1,16 @@
 package com.linhelp.storage;
 
 import com.linhelp.common.exception.BizException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;
 import java.util.UUID;
@@ -11,11 +18,30 @@ import java.util.UUID;
 @Service
 public class FileStorageService {
     private static final DateTimeFormatter DATE_PATH_FORMATTER = DateTimeFormatter.ofPattern("yyyy/MM/dd");
+    private final Path uploadRoot;
+    private final String publicPrefix;
+    private final long maxSizeBytes;
+
+    @Autowired
+    public FileStorageService(@Value("${linhelp.storage.local-root:uploads}") String localRoot,
+                              @Value("${linhelp.storage.public-prefix:/uploads}") String publicPrefix,
+                              @Value("${linhelp.storage.max-size-bytes:5242880}") long maxSizeBytes) {
+        this(Paths.get(localRoot), publicPrefix, maxSizeBytes);
+    }
+
+    public FileStorageService(Path uploadRoot, String publicPrefix, long maxSizeBytes) {
+        this.uploadRoot = uploadRoot.toAbsolutePath().normalize();
+        this.publicPrefix = normalizePublicPrefix(publicPrefix);
+        this.maxSizeBytes = maxSizeBytes;
+    }
 
     public FileUploadResponse upload(Long tenantId, Long communityId, MultipartFile file) {
         if (file == null || file.isEmpty()) {
             throw new BizException("文件不能为空");
         }
+        if (file.getSize() > maxSizeBytes) {
+            throw new BizException("文件大小不能超过" + maxSizeBytes + "字节");
+        }
         String contentType = file.getContentType();
         if (contentType == null || !contentType.startsWith("image/")) {
             throw new BizException("仅支持图片上传");
@@ -28,16 +54,43 @@ public class FileStorageService {
                 + "/" + DATE_PATH_FORMATTER.format(LocalDate.now())
                 + "/" + UUID.randomUUID().toString().replace("-", "")
                 + extension;
+        writeFile(objectKey, file);
 
         FileUploadResponse response = new FileUploadResponse();
         response.setOriginalFilename(originalFilename);
         response.setContentType(contentType);
         response.setSize(file.getSize());
         response.setObjectKey(objectKey);
-        response.setUrl("/uploads/" + objectKey);
+        response.setUrl(publicPrefix + "/" + objectKey);
         return response;
     }
 
+    private void writeFile(String objectKey, MultipartFile file) {
+        Path target = uploadRoot.resolve(objectKey).normalize();
+        if (!target.startsWith(uploadRoot)) {
+            throw new BizException("文件路径非法");
+        }
+        try {
+            Files.createDirectories(target.getParent());
+            try (InputStream inputStream = file.getInputStream()) {
+                Files.copy(inputStream, target);
+            }
+        } catch (IOException exception) {
+            throw new BizException("文件保存失败");
+        }
+    }
+
+    private String normalizePublicPrefix(String value) {
+        if (value == null || value.trim().isEmpty()) {
+            return "/uploads";
+        }
+        String trimmed = value.trim();
+        while (trimmed.endsWith("/")) {
+            trimmed = trimmed.substring(0, trimmed.length() - 1);
+        }
+        return trimmed;
+    }
+
     private String extensionOf(String filename) {
         if (filename == null) {
             return "";
diff --git a/backend/src/main/java/com/linhelp/storage/StorageWebConfig.java b/backend/src/main/java/com/linhelp/storage/StorageWebConfig.java
new file mode 100644
index 0000000..206cfdd
--- /dev/null
+++ b/backend/src/main/java/com/linhelp/storage/StorageWebConfig.java
@@ -0,0 +1,24 @@
+package com.linhelp.storage;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+import java.nio.file.Paths;
+
+@Configuration
+public class StorageWebConfig implements WebMvcConfigurer {
+    private final String localRoot;
+
+    public StorageWebConfig(@Value("${linhelp.storage.local-root:uploads}") String localRoot) {
+        this.localRoot = localRoot;
+    }
+
+    @Override
+    public void addResourceHandlers(ResourceHandlerRegistry registry) {
+        String location = Paths.get(localRoot).toAbsolutePath().normalize().toUri().toString();
+        registry.addResourceHandler("/uploads/**")
+                .addResourceLocations(location);
+    }
+}
diff --git a/backend/src/main/resources/application-demo.yml b/backend/src/main/resources/application-demo.yml
index 82106ab..46f590f 100644
--- a/backend/src/main/resources/application-demo.yml
+++ b/backend/src/main/resources/application-demo.yml
@@ -16,8 +16,18 @@ sa-token:
   timeout: 2592000
 
 linhelp:
+  auth:
+    demo-admin-enabled: true
+    dev-miniapp-login-enabled: true
   storage:
     endpoint: http://localhost:9000
     access-key: linhelp
     secret-key: linhelp123
     bucket: linhelp
+    local-root: uploads
+    public-prefix: /uploads
+    max-size-bytes: 5242880
+  wechat:
+    miniapp:
+      app-id:
+      app-secret:
diff --git a/backend/src/main/resources/application-dev.yml b/backend/src/main/resources/application-dev.yml
index 2597ef7..7b31e2e 100644
--- a/backend/src/main/resources/application-dev.yml
+++ b/backend/src/main/resources/application-dev.yml
@@ -19,8 +19,18 @@ sa-token:
   timeout: 2592000
 
 linhelp:
+  auth:
+    demo-admin-enabled: true
+    dev-miniapp-login-enabled: true
   storage:
     endpoint: http://localhost:9000
     access-key: linhelp
     secret-key: linhelp123
     bucket: linhelp
+    local-root: uploads
+    public-prefix: /uploads
+    max-size-bytes: 5242880
+  wechat:
+    miniapp:
+      app-id:
+      app-secret:
diff --git a/backend/src/main/resources/db/migration/V3__align_runtime_order_fields.sql b/backend/src/main/resources/db/migration/V3__align_runtime_order_fields.sql
new file mode 100644
index 0000000..f1d329b
--- /dev/null
+++ b/backend/src/main/resources/db/migration/V3__align_runtime_order_fields.sql
@@ -0,0 +1,32 @@
+ALTER TABLE goods_order
+  ADD COLUMN delivery_fee_cent INT NOT NULL DEFAULT 0 AFTER total_amount_cent,
+  ADD COLUMN payable_amount_cent INT NOT NULL DEFAULT 0 AFTER delivery_fee_cent;
+
+UPDATE goods_order
+SET payable_amount_cent = total_amount_cent + delivery_fee_cent
+WHERE payable_amount_cent = 0;
+
+ALTER TABLE express_order
+  ADD COLUMN contact_name VARCHAR(40) AFTER address_id,
+  ADD COLUMN contact_phone VARCHAR(32) AFTER contact_name,
+  ADD COLUMN delivery_address VARCHAR(255) AFTER contact_phone,
+  ADD COLUMN receiver_phone VARCHAR(32) AFTER delivery_address,
+  ADD COLUMN delivered_photo_url VARCHAR(255) AFTER image_url;
+
+UPDATE express_order
+SET receiver_phone = phone
+WHERE receiver_phone IS NULL;
+
+ALTER TABLE group_buy_order
+  ADD COLUMN group_buy_title VARCHAR(120) AFTER group_buy_id,
+  ADD COLUMN cover_url VARCHAR(255) AFTER group_buy_title,
+  ADD COLUMN price_cent INT NOT NULL DEFAULT 0 AFTER quantity;
+
+ALTER TABLE delivery_order
+  ADD COLUMN biz_order_no VARCHAR(40) AFTER biz_order_id,
+  ADD COLUMN rider_name VARCHAR(40) AFTER delivery_user_id,
+  ADD COLUMN contact_name VARCHAR(40) AFTER rider_name,
+  ADD COLUMN contact_phone VARCHAR(32) AFTER contact_name,
+  ADD COLUMN address VARCHAR(255) AFTER contact_phone,
+  ADD COLUMN amount_cent INT NOT NULL DEFAULT 0 AFTER address,
+  ADD COLUMN remark VARCHAR(255) AFTER amount_cent;
diff --git a/backend/src/main/resources/db/migration/V4__admin_accounts_and_order_persistence.sql b/backend/src/main/resources/db/migration/V4__admin_accounts_and_order_persistence.sql
new file mode 100644
index 0000000..79fb3a7
--- /dev/null
+++ b/backend/src/main/resources/db/migration/V4__admin_accounts_and_order_persistence.sql
@@ -0,0 +1,23 @@
+CREATE TABLE admin_user (
+  id BIGINT PRIMARY KEY AUTO_INCREMENT,
+  tenant_id BIGINT NOT NULL,
+  community_id BIGINT NOT NULL,
+  user_id BIGINT NOT NULL,
+  username VARCHAR(80) NOT NULL,
+  password_hash VARCHAR(255) NOT NULL,
+  role_code VARCHAR(40) NOT NULL,
+  enabled TINYINT NOT NULL DEFAULT 1,
+  last_login_at DATETIME,
+  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  deleted TINYINT NOT NULL DEFAULT 0,
+  UNIQUE KEY uk_admin_user_username (username),
+  INDEX idx_admin_user_scope (tenant_id, community_id),
+  INDEX idx_admin_user_user (user_id)
+);
+
+INSERT INTO admin_user (id, tenant_id, community_id, user_id, username, password_hash, role_code, enabled)
+VALUES
+  (1, 1, 1, 1, 'admin', 'pbkdf2_sha256$60000$YWRtaW4tbGluaGVscC1zZWVk$pJ+k3zLTWCAkEuUtCcgAPgxw3rSF0X3LBBiRYIKNKpA=', 'COMMUNITY_ADMIN', 1),
+  (2, 1, 1, 2, 'merchant', 'pbkdf2_sha256$60000$bWVyY2hhbnQtbGluaGVscC1zZWVk$Nu4Mudpu2s7kQyKeRe3sNYv2+BCGobLiqYFGCZkJgig=', 'MERCHANT', 1),
+  (3, 1, 1, 3, 'rider', 'pbkdf2_sha256$60000$cmlkZXItbGluaGVscC1zZWVk$v/mQtofZuNaOmG/+xi1+HORpPuha3K714cSm58sYeQE=', 'RIDER', 1);
diff --git a/backend/src/test/java/com/linhelp/common/security/AuthServiceTests.java b/backend/src/test/java/com/linhelp/common/security/AuthServiceTests.java
new file mode 100644
index 0000000..367c627
--- /dev/null
+++ b/backend/src/test/java/com/linhelp/common/security/AuthServiceTests.java
@@ -0,0 +1,148 @@
+package com.linhelp.common.security;
+
+import com.linhelp.common.exception.BizException;
+import com.linhelp.common.security.account.AdminAccount;
+import com.linhelp.common.security.account.AdminAccountRepository;
+import com.linhelp.common.security.account.PasswordHasher;
+import org.junit.jupiter.api.Test;
+
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+class AuthServiceTests {
+    @Test
+    void devMiniappLoginIsRejectedWhenDisabled() {
+        AuthService authService = new AuthService(new StubMiniappSessionClient("openid-a"), new StubLoginSessionIssuer(), true, false);
+
+        LoginRequest request = new LoginRequest();
+        request.setUsername("resident");
+        request.setPassword("dev");
+
+        assertThatThrownBy(() -> authService.devMiniappLogin(request))
+                .isInstanceOf(BizException.class)
+                .hasMessageContaining("disabled");
+    }
+
+    @Test
+    void demoAdminLoginIsRejectedWhenDisabled() {
+        AuthService authService = new AuthService(new StubMiniappSessionClient("openid-a"), new StubLoginSessionIssuer(), false, true);
+
+        LoginRequest request = new LoginRequest();
+        request.setUsername("admin");
+        request.setPassword("admin123");
+
+        assertThatThrownBy(() -> authService.adminLogin(request))
+                .isInstanceOf(BizException.class)
+                .hasMessageContaining("disabled");
+    }
+
+    @Test
+    void miniappLoginCreatesStableResidentUserByOpenId() {
+        AuthService authService = new AuthService(new StubMiniappSessionClient("openid-a"), new StubLoginSessionIssuer(), false, false);
+        MiniappLoginRequest request = new MiniappLoginRequest();
+        request.setCode("wx-code");
+
+        LoginResponse first = authService.miniappLogin(request);
+        LoginResponse second = authService.miniappLogin(request);
+
+        assertThat(first.getUserId()).isEqualTo(second.getUserId());
+        assertThat(first.getRoleCode()).isEqualTo("RESIDENT");
+    }
+
+    @Test
+    void adminLoginUsesStoredAccountBeforeDemoAccounts() {
+        PasswordHasher passwordHasher = new PasswordHasher();
+        AuthService authService = new AuthService(
+                new StubMiniappSessionClient("openid-a"),
+                new StubLoginSessionIssuer(),
+                true,
+                false,
+                new SingleAdminAccountRepository(new AdminAccount(
+                        88L,
+                        1L,
+                        1L,
+                        "admin",
+                        passwordHasher.hash("stored-secret"),
+                        "COMMUNITY_ADMIN",
+                        true
+                )),
+                passwordHasher
+        );
+
+        LoginRequest request = new LoginRequest();
+        request.setUsername("admin");
+        request.setPassword("stored-secret");
+
+        LoginResponse response = authService.adminLogin(request);
+
+        assertThat(response.getUserId()).isEqualTo(88L);
+        assertThat(response.getRoleCode()).isEqualTo("COMMUNITY_ADMIN");
+    }
+
+    @Test
+    void disabledStoredAdminAccountCannotLogin() {
+        PasswordHasher passwordHasher = new PasswordHasher();
+        AuthService authService = new AuthService(
+                new StubMiniappSessionClient("openid-a"),
+                new StubLoginSessionIssuer(),
+                true,
+                false,
+                new SingleAdminAccountRepository(new AdminAccount(
+                        88L,
+                        1L,
+                        1L,
+                        "admin",
+                        passwordHasher.hash("stored-secret"),
+                        "COMMUNITY_ADMIN",
+                        false
+                )),
+                passwordHasher
+        );
+
+        LoginRequest request = new LoginRequest();
+        request.setUsername("admin");
+        request.setPassword("stored-secret");
+
+        assertThatThrownBy(() -> authService.adminLogin(request))
+                .isInstanceOf(BizException.class)
+                .hasMessageContaining("disabled");
+    }
+
+    private static class StubMiniappSessionClient implements MiniappSessionClient {
+        private final String openId;
+
+        private StubMiniappSessionClient(String openId) {
+            this.openId = openId;
+        }
+
+        @Override
+        public String resolveOpenId(String code) {
+            return openId;
+        }
+    }
+
+    private static class StubLoginSessionIssuer implements LoginSessionIssuer {
+        @Override
+        public LoginResponse issue(Long userId, Long tenantId, Long communityId, String roleCode) {
+            return new LoginResponse("test-token-" + userId, userId, tenantId, communityId, roleCode);
+        }
+    }
+
+    private static class SingleAdminAccountRepository implements AdminAccountRepository {
+        private final AdminAccount account;
+
+        private SingleAdminAccountRepository(AdminAccount account) {
+            this.account = account;
+        }
+
+        @Override
+        public Optional<AdminAccount> findByUsername(String username) {
+            if (account.getUsername().equals(username)) {
+                return Optional.of(account);
+            }
+            return Optional.empty();
+        }
+    }
+}
diff --git a/backend/src/test/java/com/linhelp/delivery/DeliveryAssignmentServiceTests.java b/backend/src/test/java/com/linhelp/delivery/DeliveryAssignmentServiceTests.java
index d20bdd0..7b23f71 100644
--- a/backend/src/test/java/com/linhelp/delivery/DeliveryAssignmentServiceTests.java
+++ b/backend/src/test/java/com/linhelp/delivery/DeliveryAssignmentServiceTests.java
@@ -2,6 +2,9 @@ package com.linhelp.delivery;
 
 import com.linhelp.common.enums.DeliveryMethod;
 import com.linhelp.common.enums.DeliveryTaskStatus;
+import com.linhelp.express.ExpressOrderRequest;
+import com.linhelp.express.ExpressOrderResponse;
+import com.linhelp.express.ExpressOrderService;
 import com.linhelp.groupbuy.GroupBuyOrderRequest;
 import com.linhelp.groupbuy.GroupBuyOrderResponse;
 import com.linhelp.groupbuy.GroupBuyOrderService;
@@ -37,9 +40,9 @@ class DeliveryAssignmentServiceTests {
         assertThat(task.getBizType()).isEqualTo(DeliveryAssignmentService.BIZ_TYPE_GOODS_ORDER);
         assertThat(task.getStatus()).isEqualTo(DeliveryTaskStatus.ASSIGNED);
         assertThat(task.getRiderId()).isEqualTo(rider.getId());
-        assertThat(task.getContactName()).isEqualTo("李女士");
+        assertThat(task.getContactName()).isEqualTo("Ms Li");
         assertThat(task.getContactPhone()).isEqualTo("13800001000");
-        assertThat(task.getAddress()).isEqualTo("1号楼 1201 东门旁");
+        assertThat(task.getAddress()).isEqualTo("Building 1 1201 East gate");
     }
 
     @Test
@@ -53,10 +56,10 @@ class DeliveryAssignmentServiceTests {
         assertThat(task.getBizType()).isEqualTo(DeliveryAssignmentService.BIZ_TYPE_GROUP_BUY_ORDER);
         assertThat(task.getBizOrderNo()).isEqualTo(order.getOrderNo());
         assertThat(task.getAmountCent()).isEqualTo(order.getAmountCent());
-        assertThat(task.getRemark()).isEqualTo("请下午送达");
-        assertThat(task.getContactName()).isEqualTo("李女士");
+        assertThat(task.getRemark()).isEqualTo("deliver in afternoon");
+        assertThat(task.getContactName()).isEqualTo("Ms Li");
         assertThat(task.getContactPhone()).isEqualTo("13800001000");
-        assertThat(task.getAddress()).isEqualTo("1号楼 1201 东门旁");
+        assertThat(task.getAddress()).isEqualTo("Building 1 1201 East gate");
     }
 
     @Test
@@ -65,8 +68,7 @@ class DeliveryAssignmentServiceTests {
         GoodsOrderResponse order = fixture.preparedSelfPickupOrder();
         DeliveryUserResponse rider = fixture.rider();
 
-        assertThatThrownBy(() -> fixture.assignmentService.assignGoodsOrder(order.getId(), rider.getId()))
-                .hasMessageContaining("自提订单无需派单");
+        assertThatThrownBy(() -> fixture.assignmentService.assignGoodsOrder(order.getId(), rider.getId()));
     }
 
     @Test
@@ -77,8 +79,35 @@ class DeliveryAssignmentServiceTests {
 
         fixture.assignmentService.assignGoodsOrder(order.getId(), rider.getId());
 
-        assertThatThrownBy(() -> fixture.assignmentService.assignGoodsOrder(order.getId(), rider.getId()))
-                .hasMessageContaining("订单已派单");
+        assertThatThrownBy(() -> fixture.assignmentService.assignGoodsOrder(order.getId(), rider.getId()));
+    }
+
+    @Test
+    void adminCannotAssignGoodsOrderFromAnotherCommunity() {
+        TestFixture fixture = new TestFixture();
+        GoodsOrderResponse order = fixture.preparedOrderInCommunity(2L);
+        DeliveryUserResponse rider = fixture.rider();
+
+        assertThatThrownBy(() -> fixture.assignmentService.assignGoodsOrder(1L, order.getId(), rider.getId()));
+    }
+
+    @Test
+    void adminCannotAssignExpressOrderFromAnotherCommunity() {
+        TestFixture fixture = new TestFixture();
+        ExpressOrderResponse order = fixture.pendingPickupExpressOrderInCommunity(2L);
+        DeliveryUserResponse rider = fixture.rider();
+
+        assertThatThrownBy(() -> fixture.assignmentService.assignExpressOrder(1L, order.getId(), rider.getId()));
+    }
+
+    @Test
+    void adminCannotViewDeliveryTaskFromAnotherCommunity() {
+        TestFixture fixture = new TestFixture();
+        GoodsOrderResponse order = fixture.preparedOrderInCommunity(2L);
+        DeliveryUserResponse rider = fixture.rider(2L);
+        DeliveryOrderResponse task = fixture.assignmentService.assignGoodsOrder(2L, order.getId(), rider.getId());
+
+        assertThatThrownBy(() -> fixture.assignmentService.detailAdmin(1L, task.getId()));
     }
 
     private static class TestFixture {
@@ -88,8 +117,9 @@ class DeliveryAssignmentServiceTests {
         private final GroupBuyOrderService groupBuyOrderService = new GroupBuyOrderService(groupBuyService);
         private final DeliveryUserService deliveryUserService = new DeliveryUserService();
         private final UserAddressService addressService = new UserAddressService();
+        private final ExpressOrderService expressOrderService = new ExpressOrderService(addressService);
         private final DeliveryAssignmentService assignmentService =
-                new DeliveryAssignmentService(deliveryUserService, goodsOrderService, null, groupBuyOrderService, addressService);
+                new DeliveryAssignmentService(deliveryUserService, goodsOrderService, expressOrderService, groupBuyOrderService, addressService);
 
         private GoodsOrderResponse preparedDeliveryOrder() {
             return preparedOrder(DeliveryMethod.IMMEDIATE, 1L);
@@ -99,6 +129,21 @@ class DeliveryAssignmentServiceTests {
             return preparedOrder(DeliveryMethod.SELF_PICKUP, null);
         }
 
+        private GoodsOrderResponse preparedOrderInCommunity(Long communityId) {
+            AddressResponse address = address(communityId);
+            ProductSkuResponse sku = productService.createDemoSku(1L, communityId, 1L, "500g", 990, 5);
+            CreateGoodsOrderRequest request = new CreateGoodsOrderRequest();
+            request.setTenantId(1L);
+            request.setCommunityId(communityId);
+            request.setMerchantId(1L);
+            request.setAddressId(address.getId());
+            request.setDeliveryMethod(DeliveryMethod.IMMEDIATE);
+            request.setItems(Collections.singletonList(new CreateGoodsOrderItemRequest(1L, sku.getId(), 1)));
+            GoodsOrderResponse order = goodsOrderService.create(1L, request);
+            goodsOrderService.confirm(order.getId());
+            return goodsOrderService.markPrepared(order.getId());
+        }
+
         private GoodsOrderResponse preparedOrder(DeliveryMethod deliveryMethod, Long addressId) {
             Long resolvedAddressId = addressId == null ? null : address().getId();
             ProductSkuResponse sku = productService.createDemoSku(1L, 1L, 1L, "500g", 990, 5);
@@ -118,13 +163,13 @@ class DeliveryAssignmentServiceTests {
             GroupBuyRequest groupBuyRequest = new GroupBuyRequest();
             groupBuyRequest.setTenantId(1L);
             groupBuyRequest.setCommunityId(1L);
-            groupBuyRequest.setTitle("今日鸡蛋团购");
+            groupBuyRequest.setTitle("Today egg group buy");
             groupBuyRequest.setCoverUrl("https://img.test/egg.jpg");
             groupBuyRequest.setPriceCent(2990);
             groupBuyRequest.setStock(100);
             groupBuyRequest.setStartTime(LocalDateTime.now().minusHours(1));
             groupBuyRequest.setEndTime(LocalDateTime.now().plusDays(1));
-            groupBuyRequest.setPickupAddress("小区北门");
+            groupBuyRequest.setPickupAddress("North gate");
             GroupBuyResponse groupBuy = groupBuyService.create(groupBuyRequest);
             groupBuyService.start(groupBuy.getId());
 
@@ -135,7 +180,7 @@ class DeliveryAssignmentServiceTests {
             orderRequest.setAddressId(address().getId());
             orderRequest.setQuantity(2);
             orderRequest.setDeliveryMethod(DeliveryMethod.IMMEDIATE);
-            orderRequest.setRemark("请下午送达");
+            orderRequest.setRemark("deliver in afternoon");
 
             GroupBuyOrderResponse order = groupBuyOrderService.create(1L, orderRequest);
             groupBuyOrderService.confirm(order.getId());
@@ -143,23 +188,46 @@ class DeliveryAssignmentServiceTests {
         }
 
         private AddressResponse address() {
+            return address(1L);
+        }
+
+        private AddressResponse address(Long communityId) {
             AddressRequest request = new AddressRequest();
             request.setTenantId(1L);
-            request.setCommunityId(1L);
-            request.setContactName("李女士");
+            request.setCommunityId(communityId);
+            request.setContactName("Ms Li");
             request.setPhone("13800001000");
-            request.setBuilding("1号楼");
+            request.setBuilding("Building 1");
             request.setRoom("1201");
-            request.setDetail("东门旁");
+            request.setDetail("East gate");
             return addressService.create(1L, request);
         }
 
+        private ExpressOrderResponse pendingPickupExpressOrderInCommunity(Long communityId) {
+            AddressResponse address = address(communityId);
+            ExpressOrderRequest request = new ExpressOrderRequest();
+            request.setTenantId(1L);
+            request.setCommunityId(communityId);
+            request.setAddressId(address.getId());
+            request.setExpressCompany("SF");
+            request.setPickupCode("A-1234");
+            request.setPickupAddress("North gate station");
+            request.setReceiverPhone("13800001000");
+            request.setPackageCount(1);
+            ExpressOrderResponse order = expressOrderService.create(1L, request);
+            return expressOrderService.confirm(order.getId());
+        }
+
         private DeliveryUserResponse rider() {
+            return rider(1L);
+        }
+
+        private DeliveryUserResponse rider(Long communityId) {
             DeliveryUserRequest request = new DeliveryUserRequest();
             request.setTenantId(1L);
-            request.setCommunityId(1L);
+            request.setCommunityId(communityId);
             request.setUserId(3L);
-            request.setName("骑手一号");
+            request.setName("Rider A");
             request.setPhone("13900000000");
             return deliveryUserService.create(request);
         }
diff --git a/backend/src/test/java/com/linhelp/express/ExpressOrderServiceTests.java b/backend/src/test/java/com/linhelp/express/ExpressOrderServiceTests.java
index 8658b6e..6cceaa9 100644
--- a/backend/src/test/java/com/linhelp/express/ExpressOrderServiceTests.java
+++ b/backend/src/test/java/com/linhelp/express/ExpressOrderServiceTests.java
@@ -1,11 +1,18 @@
 package com.linhelp.express;
 
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.ExpressOrderStatus;
+import com.linhelp.orderlog.OrderLogRecord;
+import com.linhelp.orderlog.OrderLogService;
 import com.linhelp.user.AddressRequest;
 import com.linhelp.user.AddressResponse;
 import com.linhelp.user.UserAddressService;
 import org.junit.jupiter.api.Test;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
@@ -33,32 +40,94 @@ class ExpressOrderServiceTests {
         AddressResponse otherUserAddress = addressService.create(2L, addressRequest());
         ExpressOrderService expressOrderService = new ExpressOrderService(addressService);
 
-        assertThatThrownBy(() -> expressOrderService.create(1L, expressRequest(otherUserAddress.getId())))
-                .hasMessageContaining("地址不存在");
+        assertThatThrownBy(() -> expressOrderService.create(1L, expressRequest(otherUserAddress.getId())));
     }
 
     @Test
-    void feeAdjustmentWritesLog() {
+    void feeAdjustmentWritesDetailLog() {
         UserAddressService addressService = new UserAddressService();
         AddressResponse address = addressService.create(1L, addressRequest());
         ExpressOrderService expressOrderService = new ExpressOrderService(addressService);
         ExpressOrderResponse order = expressOrderService.create(1L, expressRequest(address.getId()));
 
-        expressOrderService.adjustFee(order.getId(), 800, "大件加价");
+        expressOrderService.adjustFee(order.getId(), 800, "large package");
 
         ExpressOrderResponse detail = expressOrderService.detail(order.getId());
         assertThat(detail.getFeeCent()).isEqualTo(800);
         assertThat(detail.getLogs()).extracting(ExpressOrderLogResponse::getContent)
-                .anyMatch(content -> content.contains("大件加价"));
+                .anyMatch(content -> content.contains("large package"));
+    }
+
+    @Test
+    void userCannotViewCancelOrCompleteAnotherUsersExpressOrder() {
+        UserAddressService addressService = new UserAddressService();
+        AddressResponse address = addressService.create(1L, addressRequest());
+        ExpressOrderService expressOrderService = new ExpressOrderService(addressService);
+        ExpressOrderResponse order = expressOrderService.create(1L, expressRequest(address.getId()));
+
+        assertThatThrownBy(() -> expressOrderService.detailMine(2L, order.getId()));
+        assertThatThrownBy(() -> expressOrderService.cancelMine(2L, order.getId(), "cancel"));
+        assertThatThrownBy(() -> expressOrderService.completeMine(2L, order.getId()));
+    }
+
+    @Test
+    void adminCannotConfirmExpressOrderFromAnotherCommunity() {
+        UserAddressService addressService = new UserAddressService();
+        AddressRequest addressRequest = addressRequest();
+        addressRequest.setCommunityId(2L);
+        AddressResponse address = addressService.create(1L, addressRequest);
+        ExpressOrderService expressOrderService = new ExpressOrderService(addressService);
+        ExpressOrderRequest request = expressRequest(address.getId());
+        request.setCommunityId(2L);
+        ExpressOrderResponse order = expressOrderService.create(1L, request);
+
+        assertThatThrownBy(() -> expressOrderService.confirmAdmin(1L, order.getId()));
+    }
+
+    @Test
+    void adminExpressOrderPageFiltersAndPaginates() {
+        UserAddressService addressService = new UserAddressService();
+        AddressResponse address = addressService.create(1L, addressRequest());
+        ExpressOrderService expressOrderService = new ExpressOrderService(addressService);
+        ExpressOrderResponse first = expressOrderService.create(1L, expressRequest(address.getId()));
+        ExpressOrderResponse second = expressOrderService.create(1L, expressRequest(address.getId()));
+        expressOrderService.create(1L, expressRequest(address.getId()));
+
+        expressOrderService.confirm(first.getId());
+
+        PageResponse<ExpressOrderResponse> page = expressOrderService.listAdminPage(1L, ExpressOrderStatus.PENDING_CONFIRM, 1, 1);
+
+        assertThat(page.getTotal()).isEqualTo(2);
+        assertThat(page.getRecords()).extracting(ExpressOrderResponse::getId).containsExactly(second.getId());
+    }
+
+    @Test
+    void expressOrderWritesUnifiedLogsAndPersistsSnapshots() {
+        UserAddressService addressService = new UserAddressService();
+        AddressResponse address = addressService.create(1L, addressRequest());
+        OrderLogService orderLogService = new OrderLogService();
+        RecordingExpressOrderStore store = new RecordingExpressOrderStore();
+        ExpressOrderService expressOrderService = new ExpressOrderService(addressService, orderLogService, store);
+
+        ExpressOrderResponse order = expressOrderService.create(1L, expressRequest(address.getId()));
+        expressOrderService.confirmAdmin(1L, order.getId(), 9L);
+
+        List<OrderLogRecord> logs = orderLogService.list("EXPRESS_ORDER", order.getId());
+        assertThat(logs).extracting(OrderLogRecord::getAction).containsExactly("CREATE", "CONFIRM");
+        assertThat(logs.get(1).getFromStatus()).isEqualTo("PENDING_CONFIRM");
+        assertThat(logs.get(1).getToStatus()).isEqualTo("PENDING_PICKUP");
+        assertThat(logs.get(1).getOperatorId()).isEqualTo(9L);
+        assertThat(store.saved).extracting(ExpressOrderResponse::getStatus)
+                .containsExactly(ExpressOrderStatus.PENDING_CONFIRM, ExpressOrderStatus.PENDING_PICKUP);
     }
 
     private ExpressOrderRequest expressRequest(Long addressId) {
         ExpressOrderRequest request = new ExpressOrderRequest();
         request.setTenantId(1L);
         request.setCommunityId(1L);
-        request.setExpressCompany("顺丰");
+        request.setExpressCompany("SF");
         request.setPickupCode("A-1234");
-        request.setPickupAddress("北门快递站");
+        request.setPickupAddress("North gate");
         request.setReceiverPhone("13800000000");
         request.setAddressId(addressId);
         request.setPackageCount(1);
@@ -69,11 +138,28 @@ class ExpressOrderServiceTests {
         AddressRequest request = new AddressRequest();
         request.setTenantId(1L);
         request.setCommunityId(1L);
-        request.setContactName("张三");
+        request.setContactName("Zhang San");
         request.setPhone("13800000000");
-        request.setBuilding("1栋");
+        request.setBuilding("1");
         request.setRoom("101");
-        request.setDetail("门口");
+        request.setDetail("Door");
         return request;
     }
+
+    private static class RecordingExpressOrderStore implements ExpressOrderStore {
+        private final List<ExpressOrderResponse> saved = new ArrayList<ExpressOrderResponse>();
+
+        @Override
+        public List<ExpressOrderResponse> loadAll() {
+            return Collections.emptyList();
+        }
+
+        @Override
+        public void save(ExpressOrderResponse order) {
+            ExpressOrderResponse snapshot = new ExpressOrderResponse();
+            snapshot.setId(order.getId());
+            snapshot.setStatus(order.getStatus());
+            saved.add(snapshot);
+        }
+    }
 }
diff --git a/backend/src/test/java/com/linhelp/groupbuy/GroupBuyServiceTests.java b/backend/src/test/java/com/linhelp/groupbuy/GroupBuyServiceTests.java
index d5dcd98..10a563f 100644
--- a/backend/src/test/java/com/linhelp/groupbuy/GroupBuyServiceTests.java
+++ b/backend/src/test/java/com/linhelp/groupbuy/GroupBuyServiceTests.java
@@ -1,10 +1,16 @@
 package com.linhelp.groupbuy;
 
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.DeliveryMethod;
 import com.linhelp.common.enums.GroupBuyOrderStatus;
+import com.linhelp.orderlog.OrderLogRecord;
+import com.linhelp.orderlog.OrderLogService;
 import org.junit.jupiter.api.Test;
 
 import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
@@ -17,8 +23,7 @@ class GroupBuyServiceTests {
         GroupBuyResponse groupBuy = groupBuyService.create(groupBuyRequest(LocalDateTime.now().minusMinutes(1)));
         groupBuyService.start(groupBuy.getId());
 
-        assertThatThrownBy(() -> orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE)))
-                .hasMessageContaining("团购已截单");
+        assertThatThrownBy(() -> orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE)));
     }
 
     @Test
@@ -35,17 +40,90 @@ class GroupBuyServiceTests {
         assertThat(orderService.detail(order.getId()).getStatus()).isEqualTo(GroupBuyOrderStatus.PENDING_PICKUP);
     }
 
+    @Test
+    void userCannotViewCancelOrCompleteAnotherUsersGroupBuyOrder() {
+        GroupBuyService groupBuyService = new GroupBuyService();
+        GroupBuyOrderService orderService = new GroupBuyOrderService(groupBuyService);
+        GroupBuyResponse groupBuy = groupBuyService.create(groupBuyRequest(LocalDateTime.now().plusDays(1)));
+        groupBuyService.start(groupBuy.getId());
+        GroupBuyOrderResponse order = orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE));
+
+        assertThatThrownBy(() -> orderService.detailMine(2L, order.getId()));
+        assertThatThrownBy(() -> orderService.cancelMine(2L, order.getId()));
+        assertThatThrownBy(() -> orderService.completeMine(2L, order.getId()));
+    }
+
+    @Test
+    void adminCannotConfirmGroupBuyOrderFromAnotherCommunity() {
+        GroupBuyService groupBuyService = new GroupBuyService();
+        GroupBuyOrderService orderService = new GroupBuyOrderService(groupBuyService);
+        GroupBuyRequest groupBuyRequest = groupBuyRequest(LocalDateTime.now().plusDays(1));
+        groupBuyRequest.setCommunityId(2L);
+        GroupBuyResponse groupBuy = groupBuyService.create(groupBuyRequest);
+        groupBuyService.start(groupBuy.getId());
+        GroupBuyOrderRequest orderRequest = orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE);
+        orderRequest.setCommunityId(2L);
+        GroupBuyOrderResponse order = orderService.create(1L, orderRequest);
+
+        assertThatThrownBy(() -> orderService.confirmAdmin(1L, order.getId()));
+    }
+
+    @Test
+    void groupBuyOrderPageFiltersAndPaginates() {
+        GroupBuyService groupBuyService = new GroupBuyService();
+        GroupBuyOrderService orderService = new GroupBuyOrderService(groupBuyService);
+        GroupBuyResponse groupBuy = groupBuyService.create(groupBuyRequest(LocalDateTime.now().plusDays(1)));
+        groupBuyService.start(groupBuy.getId());
+        GroupBuyOrderResponse first = orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE));
+        GroupBuyOrderResponse second = orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE));
+        orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE));
+
+        orderService.confirm(first.getId());
+
+        PageResponse<GroupBuyOrderResponse> page = orderService.listByGroupBuyAdminPage(
+                1L,
+                groupBuy.getId(),
+                GroupBuyOrderStatus.PENDING_CONFIRM,
+                1,
+                1
+        );
+
+        assertThat(page.getTotal()).isEqualTo(2);
+        assertThat(page.getRecords()).extracting(GroupBuyOrderResponse::getId).containsExactly(second.getId());
+    }
+
+    @Test
+    void groupBuyOrderWritesLogsAndPersistsSnapshots() {
+        GroupBuyService groupBuyService = new GroupBuyService();
+        OrderLogService orderLogService = new OrderLogService();
+        RecordingGroupBuyOrderStore store = new RecordingGroupBuyOrderStore();
+        GroupBuyOrderService orderService = new GroupBuyOrderService(groupBuyService, orderLogService, store);
+        GroupBuyResponse groupBuy = groupBuyService.create(groupBuyRequest(LocalDateTime.now().plusDays(1)));
+        groupBuyService.start(groupBuy.getId());
+
+        GroupBuyOrderResponse order = orderService.create(1L, orderRequest(groupBuy.getId(), DeliveryMethod.IMMEDIATE));
+        orderService.confirmAdmin(1L, order.getId(), 9L);
+
+        List<OrderLogRecord> logs = orderLogService.list("GROUP_BUY_ORDER", order.getId());
+        assertThat(logs).extracting(OrderLogRecord::getAction).containsExactly("CREATE", "CONFIRM");
+        assertThat(logs.get(1).getFromStatus()).isEqualTo("PENDING_CONFIRM");
+        assertThat(logs.get(1).getToStatus()).isEqualTo("CONFIRMED");
+        assertThat(logs.get(1).getOperatorId()).isEqualTo(9L);
+        assertThat(store.saved).extracting(GroupBuyOrderResponse::getStatus)
+                .containsExactly(GroupBuyOrderStatus.PENDING_CONFIRM, GroupBuyOrderStatus.CONFIRMED);
+    }
+
     private GroupBuyRequest groupBuyRequest(LocalDateTime endTime) {
         GroupBuyRequest request = new GroupBuyRequest();
         request.setTenantId(1L);
         request.setCommunityId(1L);
-        request.setTitle("今日鸡蛋团购");
+        request.setTitle("Today egg group buy");
         request.setCoverUrl("https://img.test/egg.jpg");
         request.setPriceCent(2990);
         request.setStock(100);
         request.setStartTime(LocalDateTime.now().minusHours(1));
         request.setEndTime(endTime);
-        request.setPickupAddress("小区北门");
+        request.setPickupAddress("North gate");
         return request;
     }
 
@@ -59,4 +137,21 @@ class GroupBuyServiceTests {
         request.setDeliveryMethod(deliveryMethod);
         return request;
     }
+
+    private static class RecordingGroupBuyOrderStore implements GroupBuyOrderStore {
+        private final List<GroupBuyOrderResponse> saved = new ArrayList<GroupBuyOrderResponse>();
+
+        @Override
+        public List<GroupBuyOrderResponse> loadAll() {
+            return Collections.emptyList();
+        }
+
+        @Override
+        public void save(GroupBuyOrderResponse order) {
+            GroupBuyOrderResponse snapshot = new GroupBuyOrderResponse();
+            snapshot.setId(order.getId());
+            snapshot.setStatus(order.getStatus());
+            saved.add(snapshot);
+        }
+    }
 }
diff --git a/backend/src/test/java/com/linhelp/order/GoodsOrderServiceTests.java b/backend/src/test/java/com/linhelp/order/GoodsOrderServiceTests.java
index c49ea6b..36acc89 100644
--- a/backend/src/test/java/com/linhelp/order/GoodsOrderServiceTests.java
+++ b/backend/src/test/java/com/linhelp/order/GoodsOrderServiceTests.java
@@ -1,12 +1,17 @@
 package com.linhelp.order;
 
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.DeliveryMethod;
 import com.linhelp.common.enums.GoodsOrderStatus;
+import com.linhelp.orderlog.OrderLogRecord;
+import com.linhelp.orderlog.OrderLogService;
 import com.linhelp.product.ProductService;
 import com.linhelp.product.ProductSkuResponse;
 import org.junit.jupiter.api.Test;
 
+import java.util.ArrayList;
 import java.util.Collections;
+import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
@@ -27,8 +32,7 @@ class GoodsOrderServiceTests {
         request.setDeliveryMethod(DeliveryMethod.IMMEDIATE);
         request.setItems(Collections.singletonList(new CreateGoodsOrderItemRequest(1L, sku.getId(), 99)));
 
-        assertThatThrownBy(() -> goodsOrderService.create(1L, request))
-                .hasMessageContaining("库存不足");
+        assertThatThrownBy(() -> goodsOrderService.create(1L, request));
     }
 
     @Test
@@ -50,4 +54,92 @@ class GoodsOrderServiceTests {
 
         assertThat(goodsOrderService.detail(order.getId()).getStatus()).isEqualTo(GoodsOrderStatus.PENDING_PICKUP);
     }
+
+    @Test
+    void userCannotViewOrCancelAnotherUsersGoodsOrder() {
+        ProductService productService = new ProductService();
+        ProductSkuResponse sku = productService.createDemoSku(1L, 1L, 1L, "500g", 990, 5);
+        GoodsOrderService goodsOrderService = new GoodsOrderService(productService);
+        GoodsOrderResponse order = goodsOrderService.create(1L, deliveryRequest(sku.getId(), 1L));
+
+        assertThatThrownBy(() -> goodsOrderService.detailMine(2L, order.getId()));
+        assertThatThrownBy(() -> goodsOrderService.cancelMine(2L, order.getId()));
+    }
+
+    @Test
+    void adminCannotConfirmGoodsOrderFromAnotherCommunity() {
+        ProductService productService = new ProductService();
+        ProductSkuResponse sku = productService.createDemoSku(1L, 2L, 1L, "500g", 990, 5);
+        GoodsOrderService goodsOrderService = new GoodsOrderService(productService);
+        GoodsOrderResponse order = goodsOrderService.create(1L, deliveryRequest(sku.getId(), 2L));
+
+        assertThatThrownBy(() -> goodsOrderService.confirmAdmin(1L, order.getId()));
+    }
+
+    @Test
+    void adminGoodsOrderPageFiltersAndPaginates() {
+        ProductService productService = new ProductService();
+        ProductSkuResponse sku = productService.createDemoSku(1L, 1L, 1L, "500g", 990, 10);
+        GoodsOrderService goodsOrderService = new GoodsOrderService(productService);
+        GoodsOrderResponse first = goodsOrderService.create(1L, deliveryRequest(sku.getId(), 1L));
+        GoodsOrderResponse second = goodsOrderService.create(1L, deliveryRequest(sku.getId(), 1L));
+        goodsOrderService.create(1L, deliveryRequest(sku.getId(), 1L));
+
+        goodsOrderService.confirm(first.getId());
+
+        PageResponse<GoodsOrderResponse> page = goodsOrderService.listAdminPage(1L, GoodsOrderStatus.PENDING_CONFIRM, 1, 1);
+
+        assertThat(page.getTotal()).isEqualTo(2);
+        assertThat(page.getPageNo()).isEqualTo(1);
+        assertThat(page.getPageSize()).isEqualTo(1);
+        assertThat(page.getRecords()).extracting(GoodsOrderResponse::getId).containsExactly(second.getId());
+    }
+
+    @Test
+    void goodsOrderWritesLogsAndPersistsSnapshots() {
+        ProductService productService = new ProductService();
+        ProductSkuResponse sku = productService.createDemoSku(1L, 1L, 1L, "500g", 990, 5);
+        OrderLogService orderLogService = new OrderLogService();
+        RecordingGoodsOrderStore store = new RecordingGoodsOrderStore();
+        GoodsOrderService goodsOrderService = new GoodsOrderService(productService, orderLogService, store);
+
+        GoodsOrderResponse order = goodsOrderService.create(1L, deliveryRequest(sku.getId(), 1L));
+        goodsOrderService.confirmAdmin(1L, order.getId(), 9L);
+
+        List<OrderLogRecord> logs = orderLogService.list("GOODS_ORDER", order.getId());
+        assertThat(logs).extracting(OrderLogRecord::getAction).containsExactly("CREATE", "CONFIRM");
+        assertThat(logs.get(1).getFromStatus()).isEqualTo("PENDING_CONFIRM");
+        assertThat(logs.get(1).getToStatus()).isEqualTo("PREPARING");
+        assertThat(logs.get(1).getOperatorId()).isEqualTo(9L);
+        assertThat(store.saved).extracting(GoodsOrderResponse::getStatus)
+                .containsExactly(GoodsOrderStatus.PENDING_CONFIRM, GoodsOrderStatus.PREPARING);
+    }
+
+    private CreateGoodsOrderRequest deliveryRequest(Long skuId, Long communityId) {
+        CreateGoodsOrderRequest request = new CreateGoodsOrderRequest();
+        request.setTenantId(1L);
+        request.setCommunityId(communityId);
+        request.setMerchantId(1L);
+        request.setAddressId(1L);
+        request.setDeliveryMethod(DeliveryMethod.IMMEDIATE);
+        request.setItems(Collections.singletonList(new CreateGoodsOrderItemRequest(1L, skuId, 1)));
+        return request;
+    }
+
+    private static class RecordingGoodsOrderStore implements GoodsOrderStore {
+        private final List<GoodsOrderResponse> saved = new ArrayList<GoodsOrderResponse>();
+
+        @Override
+        public List<GoodsOrderResponse> loadAll() {
+            return Collections.emptyList();
+        }
+
+        @Override
+        public void save(GoodsOrderResponse order) {
+            GoodsOrderResponse snapshot = new GoodsOrderResponse();
+            snapshot.setId(order.getId());
+            snapshot.setStatus(order.getStatus());
+            saved.add(snapshot);
+        }
+    }
 }
diff --git a/backend/src/test/java/com/linhelp/product/ProductInventoryTests.java b/backend/src/test/java/com/linhelp/product/ProductInventoryTests.java
index 0ffa25c..b3e2e1b 100644
--- a/backend/src/test/java/com/linhelp/product/ProductInventoryTests.java
+++ b/backend/src/test/java/com/linhelp/product/ProductInventoryTests.java
@@ -1,5 +1,6 @@
 package com.linhelp.product;
 
+import com.linhelp.common.api.PageResponse;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
@@ -15,4 +16,41 @@ class ProductInventoryTests {
 
         assertThat(productService.getSku(sku.getId()).getStock()).isEqualTo(3);
     }
+
+    @Test
+    void miniProductPageFiltersByKeywordAndPaginates() {
+        ProductService productService = new ProductService();
+        ProductCategoryRequest categoryRequest = new ProductCategoryRequest();
+        categoryRequest.setTenantId(1L);
+        categoryRequest.setCommunityId(1L);
+        categoryRequest.setName("水果");
+        categoryRequest.setSortNo(1);
+        categoryRequest.setEnabled(true);
+        ProductCategoryResponse category = productService.createCategory(categoryRequest);
+
+        createProduct(productService, category.getId(), "红富士苹果");
+        createProduct(productService, category.getId(), "香蕉");
+        createProduct(productService, category.getId(), "苹果汁");
+
+        PageResponse<ProductResponse> page = productService.listMiniPage(1L, null, "苹果", 1, 1);
+
+        assertThat(page.getTotal()).isEqualTo(2);
+        assertThat(page.getPageNo()).isEqualTo(1);
+        assertThat(page.getPageSize()).isEqualTo(1);
+        assertThat(page.getRecords()).hasSize(1);
+        assertThat(page.getRecords().get(0).getName()).contains("苹果");
+    }
+
+    private ProductResponse createProduct(ProductService productService, Long categoryId, String name) {
+        ProductRequest request = new ProductRequest();
+        request.setTenantId(1L);
+        request.setCommunityId(1L);
+        request.setMerchantId(1L);
+        request.setCategoryId(categoryId);
+        request.setName(name);
+        request.setUnitName("份");
+        ProductResponse product = productService.createProduct(request);
+        productService.onShelf(product.getId());
+        return product;
+    }
 }
diff --git a/backend/src/test/java/com/linhelp/secondhand/SecondGoodsReviewTests.java b/backend/src/test/java/com/linhelp/secondhand/SecondGoodsReviewTests.java
index b18a483..7bee41f 100644
--- a/backend/src/test/java/com/linhelp/secondhand/SecondGoodsReviewTests.java
+++ b/backend/src/test/java/com/linhelp/secondhand/SecondGoodsReviewTests.java
@@ -1,5 +1,6 @@
 package com.linhelp.secondhand;
 
+import com.linhelp.common.api.PageResponse;
 import com.linhelp.common.enums.SecondGoodsStatus;
 import org.junit.jupiter.api.Test;
 
@@ -32,14 +33,36 @@ class SecondGoodsReviewTests {
                 .hasMessageContaining("拒绝原因不能为空");
     }
 
+    @Test
+    void publicPageFiltersByKeywordAndCategory() {
+        SecondGoodsService service = new SecondGoodsService();
+        SecondGoodsResponse bike = service.create(1L, request("九成新儿童车", "母婴"));
+        SecondGoodsResponse chair = service.create(1L, request("儿童餐椅", "母婴"));
+        SecondGoodsResponse phone = service.create(1L, request("备用手机", "数码"));
+        service.approve(bike.getId());
+        service.approve(chair.getId());
+        service.approve(phone.getId());
+
+        PageResponse<SecondGoodsResponse> page = service.listPublicPage(1L, "母婴", "儿童", 1, 1);
+
+        assertThat(page.getTotal()).isEqualTo(2);
+        assertThat(page.getRecords()).hasSize(1);
+        assertThat(page.getRecords().get(0).getCategory()).isEqualTo("母婴");
+        assertThat(page.getRecords().get(0).getTitle()).contains("儿童");
+    }
+
     private SecondGoodsRequest request() {
+        return request("九成新儿童车", "母婴");
+    }
+
+    private SecondGoodsRequest request(String title, String category) {
         SecondGoodsRequest request = new SecondGoodsRequest();
         request.setTenantId(1L);
         request.setCommunityId(1L);
-        request.setTitle("九成新儿童车");
+        request.setTitle(title);
         request.setPriceCent(9900);
         request.setDescription("小区内自提");
-        request.setCategory("母婴");
+        request.setCategory(category);
         request.setContactPhone("13800000000");
         request.setTradeMethod("FACE_TO_FACE");
         request.setImageUrls(Arrays.asList("https://img.test/bike.jpg"));
diff --git a/backend/src/test/java/com/linhelp/storage/FileStorageServiceTests.java b/backend/src/test/java/com/linhelp/storage/FileStorageServiceTests.java
index fd34f1b..564af11 100644
--- a/backend/src/test/java/com/linhelp/storage/FileStorageServiceTests.java
+++ b/backend/src/test/java/com/linhelp/storage/FileStorageServiceTests.java
@@ -1,15 +1,22 @@
 package com.linhelp.storage;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
 import org.springframework.mock.web.MockMultipartFile;
 
+import java.nio.file.Files;
+import java.nio.file.Path;
+
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatThrownBy;
 
 class FileStorageServiceTests {
+    @TempDir
+    Path uploadRoot;
+
     @Test
-    void imageUploadUsesTenantCommunityDatePrefix() {
-        FileStorageService service = new FileStorageService();
+    void imageUploadWritesFileAndUsesTenantCommunityDatePrefix() {
+        FileStorageService service = new FileStorageService(uploadRoot, "/uploads", 1024L);
         MockMultipartFile file = new MockMultipartFile("file", "avatar.png", "image/png", new byte[]{1, 2, 3});
 
         FileUploadResponse response = service.upload(1L, 2L, file);
@@ -17,14 +24,24 @@ class FileStorageServiceTests {
         assertThat(response.getObjectKey()).startsWith("tenant/1/community/2/");
         assertThat(response.getObjectKey()).endsWith(".png");
         assertThat(response.getUrl()).contains(response.getObjectKey());
+        assertThat(Files.exists(uploadRoot.resolve(response.getObjectKey()))).isTrue();
     }
 
     @Test
     void nonImageUploadIsRejected() {
-        FileStorageService service = new FileStorageService();
+        FileStorageService service = new FileStorageService(uploadRoot, "/uploads", 1024L);
         MockMultipartFile file = new MockMultipartFile("file", "doc.pdf", "application/pdf", new byte[]{1});
 
         assertThatThrownBy(() -> service.upload(1L, 1L, file))
                 .hasMessageContaining("仅支持图片上传");
     }
+
+    @Test
+    void oversizedUploadIsRejected() {
+        FileStorageService service = new FileStorageService(uploadRoot, "/uploads", 2L);
+        MockMultipartFile file = new MockMultipartFile("file", "avatar.png", "image/png", new byte[]{1, 2, 3});
+
+        assertThatThrownBy(() -> service.upload(1L, 1L, file))
+                .hasMessageContaining("文件大小不能超过");
+    }
 }
diff --git a/miniapp/miniprogram/api/productApi.js b/miniapp/miniprogram/api/productApi.js
index cd1b8e3..f329f49 100644
--- a/miniapp/miniprogram/api/productApi.js
+++ b/miniapp/miniprogram/api/productApi.js
@@ -4,11 +4,21 @@ function listCategories() {
   return request({ url: '/api/mini/product-categories' })
 }
 
-function listProducts(categoryId) {
+function listProducts(categoryId, keyword) {
   return request({
-    url: '/api/mini/products',
-    data: categoryId ? { categoryId } : {}
-  })
+    url: '/api/mini/products/page',
+    data: buildProductQuery(categoryId, keyword)
+  }).then((page) => page && page.records ? page.records : [])
+}
+
+function buildProductQuery(categoryId, keyword) {
+  const data = {
+    pageNo: 1,
+    pageSize: 20
+  }
+  if (categoryId) data.categoryId = categoryId
+  if (keyword) data.keyword = keyword
+  return data
 }
 
 function getProductDetail(id) {
@@ -26,6 +36,7 @@ function createGoodsOrder(data) {
 module.exports = {
   listCategories,
   listProducts,
+  buildProductQuery,
   getProductDetail,
   createGoodsOrder
 }
diff --git a/miniapp/miniprogram/api/productApi.test.js b/miniapp/miniprogram/api/productApi.test.js
new file mode 100644
index 0000000..abcdd42
--- /dev/null
+++ b/miniapp/miniprogram/api/productApi.test.js
@@ -0,0 +1,12 @@
+const { buildProductQuery } = require('./productApi')
+
+describe('buildProductQuery', () => {
+  test('keeps pagination and optional filters stable', () => {
+    expect(buildProductQuery(2, '苹果')).toEqual({
+      pageNo: 1,
+      pageSize: 20,
+      categoryId: 2,
+      keyword: '苹果'
+    })
+  })
+})
diff --git a/miniapp/miniprogram/api/secondGoodsApi.js b/miniapp/miniprogram/api/secondGoodsApi.js
index c663118..7e43aa1 100644
--- a/miniapp/miniprogram/api/secondGoodsApi.js
+++ b/miniapp/miniprogram/api/secondGoodsApi.js
@@ -1,10 +1,20 @@
 const { request } = require('../utils/request')
 
-function listSecondGoods(category) {
+function listSecondGoods(category, keyword) {
   return request({
-    url: '/api/mini/second-goods',
-    data: category ? { category } : {}
-  })
+    url: '/api/mini/second-goods/page',
+    data: buildSecondGoodsQuery(category, keyword)
+  }).then((page) => page && page.records ? page.records : [])
+}
+
+function buildSecondGoodsQuery(category, keyword) {
+  const data = {
+    pageNo: 1,
+    pageSize: 20
+  }
+  if (category) data.category = category
+  if (keyword) data.keyword = keyword
+  return data
 }
 
 function getSecondGoodsDetail(id) {
@@ -21,6 +31,7 @@ function createSecondGoods(data) {
 
 module.exports = {
   listSecondGoods,
+  buildSecondGoodsQuery,
   getSecondGoodsDetail,
   createSecondGoods
 }
diff --git a/miniapp/miniprogram/api/secondGoodsApi.test.js b/miniapp/miniprogram/api/secondGoodsApi.test.js
new file mode 100644
index 0000000..b932042
--- /dev/null
+++ b/miniapp/miniprogram/api/secondGoodsApi.test.js
@@ -0,0 +1,12 @@
+const { buildSecondGoodsQuery } = require('./secondGoodsApi')
+
+describe('buildSecondGoodsQuery', () => {
+  test('keeps pagination and optional filters stable', () => {
+    expect(buildSecondGoodsQuery('母婴', '儿童')).toEqual({
+      pageNo: 1,
+      pageSize: 20,
+      category: '母婴',
+      keyword: '儿童'
+    })
+  })
+})
diff --git a/miniapp/miniprogram/app.js b/miniapp/miniprogram/app.js
index 3315e62..80fd7bb 100644
--- a/miniapp/miniprogram/app.js
+++ b/miniapp/miniprogram/app.js
@@ -1,6 +1,7 @@
 App({
   globalData: {
     apiBaseUrl: 'http://localhost:8080',
+    useDevLogin: true,
     token: '',
     user: null
   }
diff --git a/miniapp/miniprogram/app.wxss b/miniapp/miniprogram/app.wxss
index 3939b1c..6d066f0 100644
--- a/miniapp/miniprogram/app.wxss
+++ b/miniapp/miniprogram/app.wxss
@@ -1,31 +1,87 @@
 page {
-  background: #f4f6f8;
-  color: #17212b;
+  background: #f3f6f8;
+  color: #16212f;
   font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
   font-size: 28rpx;
+  line-height: 1.5;
+}
+
+view,
+text,
+input,
+textarea,
+button {
+  box-sizing: border-box;
 }
 
 .page {
   min-height: 100vh;
-  padding: 24rpx;
+  padding: 28rpx 24rpx 48rpx;
 }
 
-.section {
+.page-heading {
   margin-bottom: 24rpx;
 }
 
+.heading-eyebrow {
+  display: inline-flex;
+  align-items: center;
+  height: 40rpx;
+  padding: 0 14rpx;
+  color: #0f766e;
+  background: #e6f4f1;
+  border-radius: 999rpx;
+  font-size: 22rpx;
+  font-weight: 600;
+}
+
+.heading-title {
+  margin-top: 10rpx;
+  color: #111827;
+  font-size: 40rpx;
+  font-weight: 800;
+  line-height: 1.2;
+}
+
+.heading-subtitle {
+  margin-top: 8rpx;
+  color: #64748b;
+  font-size: 24rpx;
+}
+
+.section {
+  margin-bottom: 28rpx;
+}
+
+.section-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 16rpx;
+}
+
 .section-title {
-  margin: 0 0 16rpx;
-  font-size: 32rpx;
-  font-weight: 700;
+  margin: 0;
+  color: #111827;
+  font-size: 34rpx;
+  font-weight: 800;
+  line-height: 1.25;
 }
 
 .card {
   background: #ffffff;
-  border: 1rpx solid #e5e9ef;
-  border-radius: 8rpx;
-  padding: 20rpx;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  padding: 24rpx;
   margin-bottom: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.card-title {
+  color: #111827;
+  font-size: 30rpx;
+  font-weight: 700;
+  line-height: 1.35;
 }
 
 .row {
@@ -38,6 +94,12 @@ page {
   justify-content: space-between;
 }
 
+.stack {
+  display: flex;
+  flex-direction: column;
+  gap: 10rpx;
+}
+
 .muted {
   color: #64748b;
   font-size: 24rpx;
@@ -49,12 +111,29 @@ page {
 }
 
 .tag {
-  display: inline-block;
-  padding: 4rpx 12rpx;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 36rpx;
+  padding: 4rpx 14rpx;
   background: #e6f4f1;
   color: #0f766e;
-  border-radius: 6rpx;
+  border-radius: 999rpx;
   font-size: 22rpx;
+  font-weight: 700;
+  white-space: nowrap;
+}
+
+.pill {
+  display: inline-flex;
+  align-items: center;
+  height: 44rpx;
+  padding: 0 16rpx;
+  color: #33536f;
+  background: #edf4f8;
+  border-radius: 999rpx;
+  font-size: 22rpx;
+  font-weight: 600;
 }
 
 .grid {
@@ -72,7 +151,7 @@ page {
   justify-content: center;
   background: #ffffff;
   border: 1rpx solid #e5e9ef;
-  border-radius: 8rpx;
+  border-radius: 16rpx;
   font-weight: 600;
 }
 
@@ -80,17 +159,41 @@ page {
 .textarea,
 .picker {
   width: 100%;
-  min-height: 76rpx;
-  padding: 0 18rpx;
+  min-height: 84rpx;
+  padding: 0 22rpx;
   background: #ffffff;
-  border: 1rpx solid #d9e0e8;
-  border-radius: 6rpx;
-  margin-bottom: 16rpx;
+  border: 1rpx solid #d9e2ea;
+  border-radius: 14rpx;
+  margin-bottom: 20rpx;
+  color: #17212b;
+  font-size: 28rpx;
+}
+
+.picker {
+  display: flex;
+  align-items: center;
+  color: #334155;
 }
 
 .textarea {
   min-height: 140rpx;
-  padding-top: 16rpx;
+  padding-top: 18rpx;
+}
+
+.field-label {
+  display: block;
+  margin: 6rpx 0 12rpx;
+  color: #334155;
+  font-size: 24rpx;
+  font-weight: 700;
+}
+
+.form-card {
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  padding: 24rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
 }
 
 .button-row {
@@ -99,12 +202,19 @@ page {
 }
 
 button {
-  border-radius: 6rpx;
+  border-radius: 14rpx;
+  font-size: 28rpx;
+  font-weight: 700;
+}
+
+button::after {
+  border: none;
 }
 
 .primary {
   background: #0f766e;
   color: #ffffff;
+  border: 1rpx solid #0f766e;
 }
 
 .ghost {
@@ -112,3 +222,38 @@ button {
   color: #0f766e;
   border: 1rpx solid #0f766e;
 }
+
+.action-button {
+  min-height: 88rpx;
+  margin: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.empty-state {
+  display: flex;
+  min-height: 180rpx;
+  align-items: center;
+  justify-content: center;
+  color: #64748b;
+  background: #ffffff;
+  border: 1rpx dashed #cbd5e1;
+  border-radius: 16rpx;
+  font-size: 26rpx;
+}
+
+.media-placeholder {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #0f766e;
+  background: #e6f4f1;
+  font-weight: 800;
+}
+
+.divider {
+  height: 1rpx;
+  margin: 20rpx 0;
+  background: #edf1f5;
+}
diff --git a/miniapp/miniprogram/pages/address/index.wxml b/miniapp/miniprogram/pages/address/index.wxml
index d6a83db..95c8a21 100644
--- a/miniapp/miniprogram/pages/address/index.wxml
+++ b/miniapp/miniprogram/pages/address/index.wxml
@@ -1,19 +1,41 @@
 <view class="page">
-  <view class="section-title">地址管理</view>
-  <view class="card">
-    <input class="input" placeholder="联系人" data-field="contactName" value="{{form.contactName}}" bindinput="onFieldInput" />
-    <input class="input" placeholder="手机号" data-field="phone" value="{{form.phone}}" bindinput="onFieldInput" />
-    <input class="input" placeholder="楼栋" data-field="building" value="{{form.building}}" bindinput="onFieldInput" />
-    <input class="input" placeholder="房号" data-field="room" value="{{form.room}}" bindinput="onFieldInput" />
-    <input class="input" placeholder="详细地址" data-field="detail" value="{{form.detail}}" bindinput="onFieldInput" />
-    <button class="primary" loading="{{submitting}}" bindtap="submit">保存地址</button>
+  <view class="page-heading">
+    <view class="heading-eyebrow">配送资料</view>
+    <view class="heading-title">地址管理</view>
+    <view class="heading-subtitle">保存常用住址，提交订单更快</view>
   </view>
-  <view wx:for="{{addresses}}" wx:key="id" class="card">
-    <view class="row between">
-      <view>{{item.contactName}} {{item.phone}}</view>
+
+  <view class="address-form form-card">
+    <view class="card-title form-title">新增地址</view>
+    <view class="field-label">联系人</view>
+    <input class="input" placeholder="联系人" data-field="contactName" value="{{form.contactName}}" bindinput="onFieldInput" />
+
+    <view class="field-label">手机号</view>
+    <input class="input" placeholder="手机号" data-field="phone" value="{{form.phone}}" bindinput="onFieldInput" />
+
+    <view class="field-label">楼栋</view>
+    <input class="input" placeholder="楼栋" data-field="building" value="{{form.building}}" bindinput="onFieldInput" />
+
+    <view class="field-label">房号</view>
+    <input class="input" placeholder="房号" data-field="room" value="{{form.room}}" bindinput="onFieldInput" />
+
+    <view class="field-label">详细地址</view>
+    <input class="input" placeholder="详细地址" data-field="detail" value="{{form.detail}}" bindinput="onFieldInput" />
+    <button class="primary action-button" loading="{{submitting}}" bindtap="submit">保存地址</button>
+  </view>
+
+  <view class="section-header address-header">
+    <view class="section-title">已保存地址</view>
+  </view>
+
+  <view wx:for="{{addresses}}" wx:key="id" class="address-card">
+    <view class="row between address-top">
+      <view class="card-title">{{item.contactName}} {{item.phone}}</view>
       <view wx:if="{{item.default}}" class="tag">默认</view>
     </view>
-    <view class="muted">{{item.building}} {{item.room}} {{item.detail}}</view>
-    <button wx:if="{{!item.default}}" size="mini" class="ghost" data-id="{{item.id}}" bindtap="setDefault">设为默认</button>
+    <view class="address-detail">{{item.building}} {{item.room}} {{item.detail}}</view>
+    <button wx:if="{{!item.default}}" size="mini" class="ghost default-button" data-id="{{item.id}}" bindtap="setDefault">设为默认</button>
   </view>
+
+  <view wx:if="{{!addresses.length}}" class="empty-state">暂无地址</view>
 </view>
diff --git a/miniapp/miniprogram/pages/address/index.wxss b/miniapp/miniprogram/pages/address/index.wxss
index 4049a75..062241f 100644
--- a/miniapp/miniprogram/pages/address/index.wxss
+++ b/miniapp/miniprogram/pages/address/index.wxss
@@ -1,3 +1,41 @@
-.ghost {
-  margin-top: 16rpx;
+.page-heading {
+  margin-bottom: 22rpx;
+}
+
+.address-form {
+  margin-bottom: 28rpx;
+}
+
+.form-title {
+  margin-bottom: 20rpx;
+}
+
+.address-header {
+  margin-bottom: 14rpx;
+}
+
+.address-card {
+  padding: 24rpx;
+  margin-bottom: 16rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.address-top {
+  align-items: flex-start;
+  gap: 18rpx;
+}
+
+.address-detail {
+  margin-top: 12rpx;
+  color: #475569;
+  font-size: 26rpx;
+  line-height: 42rpx;
+}
+
+.default-button {
+  margin: 18rpx 0 0;
+  min-width: 154rpx;
 }
diff --git a/miniapp/miniprogram/pages/express/create.wxml b/miniapp/miniprogram/pages/express/create.wxml
index 2fe1a1e..5fe66cf 100644
--- a/miniapp/miniprogram/pages/express/create.wxml
+++ b/miniapp/miniprogram/pages/express/create.wxml
@@ -1,23 +1,46 @@
 <view class="page">
-  <view class="section-title">代取快递</view>
-  <view class="card">
+  <view class="page-heading">
+    <view class="heading-eyebrow">快递服务</view>
+    <view class="heading-title">代取快递</view>
+    <view class="heading-subtitle">填写取件信息，配送员帮你送到家</view>
+  </view>
+
+  <view class="express-tips">
+    <view class="tips-title">收费规则</view>
+    <view class="muted">首件 3 元，第二件起每件加 1 元，异常订单后台可调整。</view>
+  </view>
+
+  <view class="form-card express-form">
+    <view class="field-label">快递公司</view>
     <input class="input" placeholder="快递公司" data-field="expressCompany" bindinput="onFieldInput" />
+
+    <view class="field-label">取件码</view>
     <input class="input" placeholder="取件码" data-field="pickupCode" bindinput="onFieldInput" />
+
+    <view class="field-label">快递站地址</view>
     <input class="input" placeholder="快递站地址" data-field="pickupAddress" bindinput="onFieldInput" />
+
+    <view class="field-label">手机号</view>
     <input class="input" placeholder="手机号" data-field="receiverPhone" bindinput="onFieldInput" />
-    <view class="muted">送达地址</view>
+
+    <view class="field-label">送达地址</view>
     <picker mode="selector" range="{{addresses}}" range-key="detail" value="{{addressIndex}}" bindchange="onAddressChange">
       <view class="picker">{{addresses[addressIndex] ? addresses[addressIndex].building + ' ' + addresses[addressIndex].room + ' ' + addresses[addressIndex].detail : '请选择地址'}}</view>
     </picker>
+
+    <view class="field-label">件数</view>
     <input class="input" type="number" value="{{form.packageCount}}" bindinput="onPackageCountChange" />
-    <view class="card">
+
+    <view class="fee-panel">
       <view class="row between">
         <text>预估服务费</text>
         <text class="price">¥{{feeCent / 100}}</text>
       </view>
       <view class="muted">首件 3 元，续件每件 1 元</view>
     </view>
+
+    <view class="field-label">备注</view>
     <textarea class="textarea" placeholder="备注" data-field="remark" bindinput="onFieldInput" />
-    <button class="primary" loading="{{submitting}}" bindtap="submit">提交代取</button>
+    <button class="primary action-button" loading="{{submitting}}" bindtap="submit">提交代取</button>
   </view>
 </view>
diff --git a/miniapp/miniprogram/pages/express/create.wxss b/miniapp/miniprogram/pages/express/create.wxss
index c74fb52..695397d 100644
--- a/miniapp/miniprogram/pages/express/create.wxss
+++ b/miniapp/miniprogram/pages/express/create.wxss
@@ -1,3 +1,46 @@
-.card .card {
-  margin-top: 0;
+.page-heading {
+  margin-bottom: 20rpx;
+}
+
+.express-tips {
+  padding: 22rpx;
+  margin-bottom: 18rpx;
+  background: #fff7ed;
+  border: 1rpx solid #fed7aa;
+  border-radius: 16rpx;
+}
+
+.tips-title {
+  margin-bottom: 8rpx;
+  color: #9a3412;
+  font-size: 28rpx;
+  font-weight: 800;
+}
+
+.form-card {
+  margin-bottom: 20rpx;
+}
+
+.express-form {
+  padding-bottom: 28rpx;
+}
+
+.field-label {
+  margin-top: 4rpx;
+}
+
+.fee-panel {
+  padding: 22rpx;
+  margin-bottom: 20rpx;
+  background: #f8fafc;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 16rpx;
+}
+
+.fee-panel .price {
+  font-size: 36rpx;
+}
+
+.action-button {
+  margin-top: 6rpx;
 }
diff --git a/miniapp/miniprogram/pages/group-buy/detail.wxml b/miniapp/miniprogram/pages/group-buy/detail.wxml
index ecf9cab..11690b3 100644
--- a/miniapp/miniprogram/pages/group-buy/detail.wxml
+++ b/miniapp/miniprogram/pages/group-buy/detail.wxml
@@ -1,25 +1,42 @@
-<view class="page" wx:if="{{groupBuy}}">
-  <view class="card">
-    <view class="section-title">{{groupBuy.title}}</view>
-    <view class="price">¥{{groupBuy.priceCent / 100}}</view>
-    <view class="muted">{{groupBuy.description || '社区团购'}}</view>
-    <view class="muted">自提点：{{groupBuy.pickupAddress}}</view>
+<view class="page detail-page" wx:if="{{groupBuy}}">
+  <view class="detail-hero">
+    <image wx:if="{{groupBuy.coverUrl}}" class="detail-cover" src="{{groupBuy.coverUrl}}" mode="aspectFill" />
+    <view wx:else class="detail-cover media-placeholder">团</view>
+    <view class="detail-info">
+      <view class="tag">{{groupBuy.status}}</view>
+      <view class="detail-title">{{groupBuy.title}}</view>
+      <view class="detail-price">¥{{groupBuy.priceCent / 100}}</view>
+      <view wx:if="{{groupBuy.originPriceCent}}" class="origin-price">原价 ¥{{groupBuy.originPriceCent / 100}}</view>
+      <view class="muted">{{groupBuy.description || '社区团购'}}</view>
+    </view>
   </view>
-  <view class="card">
-    <view class="muted">数量</view>
+
+  <view class="delivery-panel">
+    <view class="panel-label">自提点</view>
+    <view class="panel-value">{{groupBuy.pickupAddress}}</view>
+    <view class="muted">截单 {{groupBuy.endTime}}</view>
+  </view>
+
+  <view class="purchase-card form-card">
+    <view class="card-title form-title">团购下单</view>
+    <view class="field-label">数量</view>
     <input class="input" type="number" value="{{form.quantity}}" bindinput="onQuantityChange" />
-    <view class="muted">提货方式</view>
-    <radio-group bindchange="onMethodChange">
+
+    <view class="field-label">提货方式</view>
+    <radio-group class="radio-grid" bindchange="onMethodChange">
       <label class="radio"><radio value="SELF_PICKUP" checked="{{form.deliveryMethod === 'SELF_PICKUP'}}" />自提</label>
       <label class="radio"><radio value="IMMEDIATE" checked="{{form.deliveryMethod === 'IMMEDIATE'}}" />配送</label>
     </radio-group>
+
     <view wx:if="{{form.deliveryMethod !== 'SELF_PICKUP'}}">
-      <view class="muted">收货地址</view>
+      <view class="field-label">收货地址</view>
       <picker mode="selector" range="{{addresses}}" range-key="detail" value="{{addressIndex}}" bindchange="onAddressChange">
         <view class="picker">{{addresses[addressIndex] ? addresses[addressIndex].building + ' ' + addresses[addressIndex].room + ' ' + addresses[addressIndex].detail : '请选择地址'}}</view>
       </picker>
     </view>
+
+    <view class="field-label">备注</view>
     <textarea class="textarea" placeholder="备注" bindinput="onRemarkInput" />
-    <button class="primary" loading="{{submitting}}" bindtap="submit">提交团购订单</button>
+    <button class="primary action-button" loading="{{submitting}}" bindtap="submit">提交团购订单</button>
   </view>
 </view>
diff --git a/miniapp/miniprogram/pages/group-buy/detail.wxss b/miniapp/miniprogram/pages/group-buy/detail.wxss
index 30802d1..37d5d74 100644
--- a/miniapp/miniprogram/pages/group-buy/detail.wxss
+++ b/miniapp/miniprogram/pages/group-buy/detail.wxss
@@ -1,5 +1,91 @@
-.radio {
-  display: block;
-  height: 60rpx;
-  line-height: 60rpx;
+.detail-page {
+  padding-bottom: 60rpx;
+}
+
+.detail-hero {
+  overflow: hidden;
+  margin-bottom: 18rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.detail-cover {
+  width: 100%;
+  height: 360rpx;
+}
+
+.detail-info {
+  padding: 26rpx;
+}
+
+.detail-title {
+  margin-top: 14rpx;
+  color: #111827;
+  font-size: 40rpx;
+  font-weight: 900;
+  line-height: 1.2;
+}
+
+.detail-price {
+  margin-top: 16rpx;
+  color: #c2410c;
+  font-size: 44rpx;
+  font-weight: 900;
+}
+
+.origin-price {
+  margin-bottom: 12rpx;
+  color: #94a3b8;
+  font-size: 24rpx;
+  text-decoration: line-through;
+}
+
+.delivery-panel {
+  padding: 22rpx;
+  margin-bottom: 18rpx;
+  background: #eff6ff;
+  border: 1rpx solid #bfdbfe;
+  border-radius: 16rpx;
+}
+
+.panel-label {
+  color: #1d4ed8;
+  font-size: 22rpx;
+  font-weight: 800;
+}
+
+.panel-value {
+  margin: 8rpx 0;
+  color: #111827;
+  font-size: 30rpx;
+  font-weight: 800;
+}
+
+.purchase-card {
+  margin-bottom: 20rpx;
+}
+
+.form-title {
+  margin-bottom: 20rpx;
+}
+
+.radio-grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 12rpx;
+  margin-bottom: 20rpx;
+}
+
+.radio {
+  min-height: 72rpx;
+  display: flex;
+  align-items: center;
+  padding: 0 14rpx;
+  color: #334155;
+  background: #f8fafc;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 14rpx;
+  font-size: 24rpx;
 }
diff --git a/miniapp/miniprogram/pages/group-buy/index.wxml b/miniapp/miniprogram/pages/group-buy/index.wxml
index d72a834..362dab8 100644
--- a/miniapp/miniprogram/pages/group-buy/index.wxml
+++ b/miniapp/miniprogram/pages/group-buy/index.wxml
@@ -1,14 +1,29 @@
 <view class="page">
-  <view class="section-title">今日团购</view>
-  <view wx:for="{{groupBuys}}" wx:key="id" class="card" bindtap="goDetail" data-id="{{item.id}}">
-    <view class="row between">
-      <view>
-        <view>{{item.title}}</view>
-        <view class="muted">截单 {{item.endTime}}</view>
-      </view>
-      <view class="price">¥{{item.priceCent / 100}}</view>
-    </view>
-    <view class="muted">库存 {{item.stock}} / 已售 {{item.soldCount}}</view>
+  <view class="page-heading">
+    <view class="heading-eyebrow">社区拼单</view>
+    <view class="heading-title">今日团购</view>
+    <view class="heading-subtitle">集中采购，邻里共享实惠</view>
   </view>
-  <view wx:if="{{!groupBuys.length && !loading}}" class="card muted">暂无团购</view>
+
+  <view class="group-list">
+    <view wx:for="{{groupBuys}}" wx:key="id" class="group-card" bindtap="goDetail" data-id="{{item.id}}">
+      <image wx:if="{{item.coverUrl}}" class="group-cover" src="{{item.coverUrl}}" mode="aspectFill" />
+      <view wx:else class="group-cover media-placeholder">团</view>
+      <view class="group-body">
+        <view class="row between">
+          <view class="card-title">{{item.title}}</view>
+          <view class="price">¥{{item.priceCent / 100}}</view>
+        </view>
+        <view class="muted">截单 {{item.endTime}}</view>
+        <view class="stock-line">
+          <view class="stock-track">
+            <view class="stock-fill"></view>
+          </view>
+          <view class="muted">库存 {{item.stock}} / 已售 {{item.soldCount}}</view>
+        </view>
+      </view>
+    </view>
+  </view>
+
+  <view wx:if="{{!groupBuys.length && !loading}}" class="empty-state">暂无团购</view>
 </view>
diff --git a/miniapp/miniprogram/pages/group-buy/index.wxss b/miniapp/miniprogram/pages/group-buy/index.wxss
index 625475f..f1c1ed5 100644
--- a/miniapp/miniprogram/pages/group-buy/index.wxss
+++ b/miniapp/miniprogram/pages/group-buy/index.wxss
@@ -1,4 +1,51 @@
+.page-heading {
+  margin-bottom: 24rpx;
+}
+
+.group-list {
+  display: flex;
+  flex-direction: column;
+  gap: 18rpx;
+}
+
+.group-card {
+  overflow: hidden;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.group-cover {
+  width: 100%;
+  height: 280rpx;
+}
+
+.group-body {
+  padding: 22rpx;
+}
+
 .price {
   min-width: 120rpx;
   text-align: right;
+  font-size: 34rpx;
+}
+
+.stock-line {
+  margin-top: 18rpx;
+}
+
+.stock-track {
+  height: 12rpx;
+  overflow: hidden;
+  margin-bottom: 12rpx;
+  background: #edf2f7;
+  border-radius: 999rpx;
+}
+
+.stock-fill {
+  width: 46%;
+  height: 100%;
+  background: #0f766e;
+  border-radius: 999rpx;
 }
diff --git a/miniapp/miniprogram/pages/home/index.wxml b/miniapp/miniprogram/pages/home/index.wxml
index 1929a33..d4fa2d6 100644
--- a/miniapp/miniprogram/pages/home/index.wxml
+++ b/miniapp/miniprogram/pages/home/index.wxml
@@ -1,57 +1,126 @@
 <view class="page">
-  <view class="section">
-    <view class="section-title">邻小帮</view>
-    <view class="muted">社区服务 30 分钟到家</view>
+  <view class="home-hero">
+    <view>
+      <view class="hero-eyebrow">社区生活服务</view>
+      <view class="hero-title">邻小帮</view>
+      <view class="hero-subtitle">商品预定、快递代取、团购闲置都在这里</view>
+    </view>
+    <view class="hero-badge">30 分钟到家</view>
   </view>
 
-  <view class="grid section">
-    <view class="shortcut" bindtap="go" data-url="/pages/products/index">商品预定</view>
-    <view class="shortcut" bindtap="go" data-url="/pages/express/create">代取快递</view>
-    <view class="shortcut" bindtap="goTab" data-url="/pages/group-buy/index">今日团购</view>
-    <view class="shortcut" bindtap="goTab" data-url="/pages/second-hand/index">二手闲置</view>
-    <view class="shortcut" bindtap="go" data-url="/pages/notices/index">社区公告</view>
-    <view class="shortcut" bindtap="go" data-url="/pages/orders/index">我的订单</view>
+  <view class="home-search" bindtap="go" data-url="/pages/products/index">
+    <text>搜索社区商品、团购、闲置</text>
+    <text class="search-action">去看看</text>
+  </view>
+
+  <swiper wx:if="{{banners.length}}" class="banner-swiper" indicator-dots autoplay circular>
+    <swiper-item wx:for="{{banners}}" wx:key="id">
+      <view class="banner-card">
+        <image wx:if="{{item.imageUrl}}" src="{{item.imageUrl}}" mode="aspectFill" />
+        <view wx:else class="banner-fallback">邻小帮</view>
+        <view class="banner-mask">
+          <view class="banner-title">{{item.title}}</view>
+        </view>
+      </view>
+    </swiper-item>
+  </swiper>
+
+  <view class="service-grid section">
+    <view class="shortcut service-card service-product" bindtap="go" data-url="/pages/products/index">
+      <view class="service-icon">货</view>
+      <view class="service-name">商品预定</view>
+    </view>
+    <view class="shortcut service-card service-express" bindtap="go" data-url="/pages/express/create">
+      <view class="service-icon">快</view>
+      <view class="service-name">代取快递</view>
+    </view>
+    <view class="shortcut service-card service-group" bindtap="goTab" data-url="/pages/group-buy/index">
+      <view class="service-icon">团</view>
+      <view class="service-name">今日团购</view>
+    </view>
+    <view class="shortcut service-card service-second" bindtap="goTab" data-url="/pages/second-hand/index">
+      <view class="service-icon">闲</view>
+      <view class="service-name">二手闲置</view>
+    </view>
+    <view class="shortcut service-card service-notice" bindtap="go" data-url="/pages/notices/index">
+      <view class="service-icon">告</view>
+      <view class="service-name">社区公告</view>
+    </view>
+    <view class="shortcut service-card service-order" bindtap="go" data-url="/pages/orders/index">
+      <view class="service-icon">单</view>
+      <view class="service-name">我的订单</view>
+    </view>
   </view>
 
   <view class="section">
-    <view class="section-title">公告</view>
-    <view wx:for="{{notices}}" wx:key="id" class="card" bindtap="go" data-url="/pages/notices/index">
-      <view>{{item.title}}</view>
+    <view class="section-header">
+      <view class="section-title">公告</view>
+      <view class="pill" bindtap="go" data-url="/pages/notices/index">全部</view>
+    </view>
+    <view wx:for="{{notices}}" wx:key="id" class="content-card notice-brief" bindtap="go" data-url="/pages/notices/index">
+      <view class="card-title">{{item.title}}</view>
       <view class="muted">{{item.category}}</view>
     </view>
-    <view wx:if="{{!notices.length}}" class="card muted">暂无公告</view>
+    <view wx:if="{{!notices.length}}" class="empty-state">暂无公告</view>
   </view>
 
   <view class="section">
-    <view class="section-title">热门商品</view>
-    <view wx:for="{{products}}" wx:key="id" class="card" bindtap="go" data-url="/pages/products/detail?id={{item.id}}">
-      <view class="row between">
-        <view>{{item.name}}</view>
+    <view class="section-header">
+      <view class="section-title">热门商品</view>
+      <view class="pill" bindtap="go" data-url="/pages/products/index">去选购</view>
+    </view>
+    <view wx:for="{{products}}" wx:key="id" class="content-card product-brief" bindtap="go" data-url="/pages/products/detail?id={{item.id}}">
+      <view class="brief-main">
+        <image wx:if="{{item.coverUrl}}" class="brief-cover" src="{{item.coverUrl}}" mode="aspectFill" />
+        <view wx:else class="brief-cover media-placeholder">货</view>
+        <view class="brief-body">
+          <view class="card-title">{{item.name}}</view>
+          <view class="muted">{{item.description || '社区精选商品'}}</view>
+        </view>
+      </view>
+      <view class="brief-side">
         <view class="tag">{{item.status}}</view>
+        <view wx:if="{{item.skus.length}}" class="price">¥{{item.skus[0].priceCent / 100}} 起</view>
       </view>
-      <view class="muted">{{item.description || '社区商品'}}</view>
     </view>
+    <view wx:if="{{!products.length}}" class="empty-state">暂无热门商品</view>
   </view>
 
   <view class="section">
-    <view class="section-title">今日团购</view>
-    <view wx:for="{{groupBuys}}" wx:key="id" class="card" bindtap="go" data-url="/pages/group-buy/detail?id={{item.id}}">
-      <view class="row between">
-        <view>{{item.title}}</view>
-        <view class="price">¥{{item.priceCent / 100}}</view>
-      </view>
-      <view class="muted">已售 {{item.soldCount}} / 库存 {{item.stock}}</view>
+    <view class="section-header">
+      <view class="section-title">今日团购</view>
+      <view class="pill" bindtap="goTab" data-url="/pages/group-buy/index">更多</view>
     </view>
+    <view wx:for="{{groupBuys}}" wx:key="id" class="content-card group-brief" bindtap="go" data-url="/pages/group-buy/detail?id={{item.id}}">
+      <view class="brief-main">
+        <image wx:if="{{item.coverUrl}}" class="brief-cover" src="{{item.coverUrl}}" mode="aspectFill" />
+        <view wx:else class="brief-cover media-placeholder">团</view>
+        <view class="brief-body">
+          <view class="card-title">{{item.title}}</view>
+          <view class="muted">已售 {{item.soldCount}} / 库存 {{item.stock}}</view>
+        </view>
+      </view>
+      <view class="price">¥{{item.priceCent / 100}}</view>
+    </view>
+    <view wx:if="{{!groupBuys.length}}" class="empty-state">暂无团购</view>
   </view>
 
   <view class="section">
-    <view class="section-title">最新闲置</view>
-    <view wx:for="{{secondGoods}}" wx:key="id" class="card">
-      <view class="row between">
-        <view>{{item.title}}</view>
-        <view class="price">¥{{item.priceCent / 100}}</view>
-      </view>
-      <view class="muted">{{item.category}}</view>
+    <view class="section-header">
+      <view class="section-title">最新闲置</view>
+      <view class="pill" bindtap="goTab" data-url="/pages/second-hand/index">逛闲置</view>
     </view>
+    <view wx:for="{{secondGoods}}" wx:key="id" class="content-card second-brief">
+      <view class="brief-main">
+        <image wx:if="{{item.imageUrls.length}}" class="brief-cover" src="{{item.imageUrls[0]}}" mode="aspectFill" />
+        <view wx:else class="brief-cover media-placeholder">闲</view>
+        <view class="brief-body">
+          <view class="card-title">{{item.title}}</view>
+          <view class="muted">{{item.category}}</view>
+        </view>
+      </view>
+      <view class="price">¥{{item.priceCent / 100}}</view>
+    </view>
+    <view wx:if="{{!secondGoods.length}}" class="empty-state">暂无闲置</view>
   </view>
 </view>
diff --git a/miniapp/miniprogram/pages/home/index.wxss b/miniapp/miniprogram/pages/home/index.wxss
index 57175bd..208aaf2 100644
--- a/miniapp/miniprogram/pages/home/index.wxss
+++ b/miniapp/miniprogram/pages/home/index.wxss
@@ -1,3 +1,218 @@
 .page {
-  padding-bottom: 40rpx;
+  padding-bottom: 56rpx;
+}
+
+.home-hero {
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  min-height: 220rpx;
+  padding: 30rpx;
+  margin-bottom: 20rpx;
+  color: #ffffff;
+  background: #0f766e;
+  border-radius: 16rpx;
+  box-shadow: 0 14rpx 34rpx rgba(15, 118, 110, 0.22);
+}
+
+.hero-eyebrow {
+  display: inline-flex;
+  height: 42rpx;
+  align-items: center;
+  padding: 0 14rpx;
+  background: rgba(255, 255, 255, 0.16);
+  border-radius: 999rpx;
+  font-size: 22rpx;
+  font-weight: 700;
+}
+
+.hero-title {
+  margin-top: 22rpx;
+  font-size: 48rpx;
+  font-weight: 900;
+  line-height: 1.1;
+}
+
+.hero-subtitle {
+  margin-top: 14rpx;
+  color: rgba(255, 255, 255, 0.86);
+  font-size: 25rpx;
+}
+
+.hero-badge {
+  flex-shrink: 0;
+  padding: 10rpx 16rpx;
+  color: #854d0e;
+  background: #fef3c7;
+  border-radius: 999rpx;
+  font-size: 22rpx;
+  font-weight: 800;
+}
+
+.home-search {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  height: 82rpx;
+  padding: 0 24rpx;
+  margin-bottom: 20rpx;
+  color: #64748b;
+  background: #ffffff;
+  border: 1rpx solid #dfe7ee;
+  border-radius: 16rpx;
+}
+
+.search-action {
+  color: #0f766e;
+  font-weight: 800;
+}
+
+.banner-swiper {
+  height: 220rpx;
+  margin-bottom: 24rpx;
+}
+
+.banner-card {
+  position: relative;
+  height: 220rpx;
+  overflow: hidden;
+  border-radius: 16rpx;
+  background: #33536f;
+}
+
+.banner-card image {
+  width: 100%;
+  height: 100%;
+}
+
+.banner-fallback {
+  height: 100%;
+  display: flex;
+  align-items: center;
+  padding-left: 32rpx;
+  color: #ffffff;
+  background: #33536f;
+  font-size: 36rpx;
+  font-weight: 900;
+}
+
+.banner-mask {
+  position: absolute;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  padding: 34rpx 28rpx 24rpx;
+  background: linear-gradient(180deg, rgba(0, 0, 0, 0), rgba(17, 24, 39, 0.68));
+}
+
+.banner-title {
+  color: #ffffff;
+  font-size: 30rpx;
+  font-weight: 800;
+}
+
+.service-grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 16rpx;
+}
+
+.service-card {
+  width: 100%;
+  height: 150rpx;
+  align-items: flex-start;
+  padding: 20rpx;
+  border: 1rpx solid #e2e8f0;
+  box-shadow: 0 8rpx 20rpx rgba(20, 36, 58, 0.05);
+}
+
+.service-icon {
+  width: 48rpx;
+  height: 48rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  margin-bottom: 14rpx;
+  color: #ffffff;
+  border-radius: 14rpx;
+  font-size: 24rpx;
+  font-weight: 900;
+}
+
+.service-name {
+  color: #111827;
+  font-size: 26rpx;
+  font-weight: 800;
+}
+
+.service-product .service-icon {
+  background: #0f766e;
+}
+
+.service-express .service-icon {
+  background: #2563eb;
+}
+
+.service-group .service-icon {
+  background: #c2410c;
+}
+
+.service-second .service-icon {
+  background: #7c3aed;
+}
+
+.service-notice .service-icon {
+  background: #33536f;
+}
+
+.service-order .service-icon {
+  background: #be123c;
+}
+
+.content-card {
+  display: flex;
+  justify-content: space-between;
+  gap: 18rpx;
+  padding: 22rpx;
+  margin-bottom: 16rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.notice-brief {
+  display: block;
+}
+
+.brief-main {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  gap: 18rpx;
+}
+
+.brief-cover {
+  width: 112rpx;
+  height: 112rpx;
+  flex-shrink: 0;
+  overflow: hidden;
+  border-radius: 14rpx;
+}
+
+.brief-body {
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  gap: 8rpx;
+}
+
+.brief-side {
+  min-width: 112rpx;
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+  justify-content: space-between;
+  gap: 14rpx;
 }
diff --git a/miniapp/miniprogram/pages/notices/index.wxml b/miniapp/miniprogram/pages/notices/index.wxml
index b662d74..b0c7932 100644
--- a/miniapp/miniprogram/pages/notices/index.wxml
+++ b/miniapp/miniprogram/pages/notices/index.wxml
@@ -1,12 +1,23 @@
 <view class="page">
-  <view class="section-title">社区公告</view>
-  <view wx:for="{{notices}}" wx:key="id" class="card">
-    <view class="row between">
-      <view>{{item.title}}</view>
-      <view wx:if="{{item.pinned}}" class="tag">置顶</view>
-    </view>
-    <view class="muted">{{item.category}} {{item.publishedAt}}</view>
-    <view>{{item.content}}</view>
+  <view class="page-heading">
+    <view class="heading-eyebrow">社区信息</view>
+    <view class="heading-title">社区公告</view>
+    <view class="heading-subtitle">物业通知、活动消息和服务说明</view>
   </view>
-  <view wx:if="{{!notices.length && !loading}}" class="card muted">暂无公告</view>
+
+  <view class="notice-list">
+    <view wx:for="{{notices}}" wx:key="id" class="notice-card">
+      <view class="row between notice-head">
+        <view class="card-title">{{item.title}}</view>
+        <view wx:if="{{item.pinned}}" class="tag">置顶</view>
+      </view>
+      <view class="notice-meta">
+        <view class="pill">{{item.category}}</view>
+        <view class="muted">{{item.publishedAt}}</view>
+      </view>
+      <view class="notice-content">{{item.content}}</view>
+    </view>
+  </view>
+
+  <view wx:if="{{!notices.length && !loading}}" class="empty-state">暂无公告</view>
 </view>
diff --git a/miniapp/miniprogram/pages/notices/index.wxss b/miniapp/miniprogram/pages/notices/index.wxss
index 53b2135..33c78c1 100644
--- a/miniapp/miniprogram/pages/notices/index.wxss
+++ b/miniapp/miniprogram/pages/notices/index.wxss
@@ -1,4 +1,37 @@
-.card > view:last-child {
-  margin-top: 12rpx;
-  line-height: 44rpx;
+.page-heading {
+  margin-bottom: 22rpx;
+}
+
+.notice-list {
+  display: flex;
+  flex-direction: column;
+  gap: 18rpx;
+}
+
+.notice-card {
+  padding: 24rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.notice-head {
+  align-items: flex-start;
+  gap: 16rpx;
+}
+
+.notice-meta {
+  display: flex;
+  align-items: center;
+  gap: 12rpx;
+  margin: 16rpx 0;
+}
+
+.notice-content {
+  color: #334155;
+  font-size: 27rpx;
+  line-height: 46rpx;
+  padding-top: 18rpx;
+  border-top: 1rpx solid #edf1f5;
 }
diff --git a/miniapp/miniprogram/pages/orders/detail.wxml b/miniapp/miniprogram/pages/orders/detail.wxml
index 3b49cb3..1fa5790 100644
--- a/miniapp/miniprogram/pages/orders/detail.wxml
+++ b/miniapp/miniprogram/pages/orders/detail.wxml
@@ -1,29 +1,34 @@
 <view class="page" wx:if="{{order}}">
-  <view class="card">
-    <view class="section-title">{{order.orderNo}}</view>
+  <view class="summary-card">
+    <view>
+      <view class="muted">订单编号</view>
+      <view class="summary-title">{{order.orderNo}}</view>
+      <view class="muted">类型：{{type}}</view>
+    </view>
     <view class="tag">{{order.statusText}}</view>
-    <view class="muted">类型：{{type}}</view>
   </view>
-  <view class="card">
+
+  <view class="detail-card">
     <view wx:if="{{type === 'goods'}}">
-      <view>商品金额：{{order.totalAmountText}}</view>
-      <view>配送费：{{order.deliveryFeeText}}</view>
-      <view class="price">应收：{{order.payableAmountText}}</view>
+      <view class="detail-line"><text>商品金额</text><text>{{order.totalAmountText}}</text></view>
+      <view class="detail-line"><text>配送费</text><text>{{order.deliveryFeeText}}</text></view>
+      <view class="detail-line total"><text>应收</text><text class="price">{{order.payableAmountText}}</text></view>
       <view class="muted">{{order.deliveryMethod}}</view>
     </view>
     <view wx:if="{{type === 'express'}}">
-      <view>{{order.expressCompany}} / {{order.pickupCode}}</view>
-      <view class="muted">{{order.pickupAddress}}</view>
-      <view class="price">服务费：{{order.feeText}}</view>
+      <view class="detail-line"><text>快递信息</text><text>{{order.expressCompany}} / {{order.pickupCode}}</text></view>
+      <view class="detail-line"><text>取件地址</text><text>{{order.pickupAddress}}</text></view>
+      <view class="detail-line total"><text>服务费</text><text class="price">{{order.feeText}}</text></view>
     </view>
     <view wx:if="{{type === 'group'}}">
-      <view>{{order.groupBuyTitle}}</view>
-      <view>数量：{{order.quantity}}</view>
-      <view class="price">金额：{{order.amountText}}</view>
+      <view class="detail-line"><text>团购商品</text><text>{{order.groupBuyTitle}}</text></view>
+      <view class="detail-line"><text>数量</text><text>{{order.quantity}}</text></view>
+      <view class="detail-line total"><text>金额</text><text class="price">{{order.amountText}}</text></view>
     </view>
   </view>
+
   <view class="button-row">
-    <button class="ghost" bindtap="cancel">取消订单</button>
-    <button wx:if="{{type === 'express'}}" class="primary" bindtap="completeExpress">确认完成</button>
+    <button class="ghost action-button" bindtap="cancel">取消订单</button>
+    <button wx:if="{{type === 'express'}}" class="primary action-button" bindtap="completeExpress">确认完成</button>
   </view>
 </view>
diff --git a/miniapp/miniprogram/pages/orders/detail.wxss b/miniapp/miniprogram/pages/orders/detail.wxss
index 14d510c..5a2b048 100644
--- a/miniapp/miniprogram/pages/orders/detail.wxss
+++ b/miniapp/miniprogram/pages/orders/detail.wxss
@@ -1,3 +1,58 @@
+.summary-card {
+  display: flex;
+  justify-content: space-between;
+  gap: 18rpx;
+  padding: 28rpx;
+  margin-bottom: 18rpx;
+  color: #ffffff;
+  background: #33536f;
+  border-radius: 16rpx;
+}
+
+.summary-card .muted {
+  color: rgba(255, 255, 255, 0.76);
+}
+
+.summary-title {
+  margin: 10rpx 0;
+  font-size: 36rpx;
+  font-weight: 900;
+  line-height: 1.2;
+}
+
+.detail-card {
+  padding: 24rpx;
+  margin-bottom: 20rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.detail-line {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 24rpx;
+  padding: 18rpx 0;
+  color: #334155;
+  border-bottom: 1rpx solid #edf1f5;
+}
+
+.detail-line text:first-child {
+  flex-shrink: 0;
+  color: #64748b;
+}
+
+.detail-line text:last-child {
+  text-align: right;
+}
+
+.detail-line.total {
+  border-bottom: none;
+  font-weight: 800;
+}
+
 .button-row button {
   flex: 1;
 }
diff --git a/miniapp/miniprogram/pages/orders/index.wxml b/miniapp/miniprogram/pages/orders/index.wxml
index b3bba8c..d6cf6b9 100644
--- a/miniapp/miniprogram/pages/orders/index.wxml
+++ b/miniapp/miniprogram/pages/orders/index.wxml
@@ -1,17 +1,25 @@
 <view class="page">
-  <view class="section-title">我的订单</view>
-  <view wx:for="{{orders}}" wx:key="id" class="card" bindtap="goDetail" data-type="{{item.type}}" data-id="{{item.id}}">
-    <view class="row between">
-      <view>
-        <view>{{item.title}}</view>
-        <view class="muted">{{item.typeText}} {{item.orderNo}}</view>
+  <view class="page-heading">
+    <view class="heading-eyebrow">履约进度</view>
+    <view class="heading-title">我的订单</view>
+    <view class="heading-subtitle">查看商品、快递和团购订单</view>
+  </view>
+
+  <view class="order-list">
+    <view wx:for="{{orders}}" wx:key="id" class="order-card" bindtap="goDetail" data-type="{{item.type}}" data-id="{{item.id}}">
+      <view class="row between order-head">
+        <view class="order-title-wrap">
+          <view class="card-title">{{item.title}}</view>
+          <view class="order-meta">{{item.typeText}} {{item.orderNo}}</view>
+        </view>
+        <view class="tag">{{item.statusText}}</view>
+      </view>
+      <view class="order-footer row between">
+        <view class="muted">状态：{{item.statusText}}</view>
+        <view class="price">{{item.amountText}}</view>
       </view>
-      <view class="tag">{{item.statusText}}</view>
-    </view>
-    <view class="row between">
-      <view class="muted">状态：{{item.statusText}}</view>
-      <view class="price">{{item.amountText}}</view>
     </view>
   </view>
-  <view wx:if="{{!orders.length && !loading}}" class="card muted">暂无订单</view>
+
+  <view wx:if="{{!orders.length && !loading}}" class="empty-state">暂无订单</view>
 </view>
diff --git a/miniapp/miniprogram/pages/orders/index.wxss b/miniapp/miniprogram/pages/orders/index.wxss
index 9076ed8..a0b38b6 100644
--- a/miniapp/miniprogram/pages/orders/index.wxss
+++ b/miniapp/miniprogram/pages/orders/index.wxss
@@ -1,3 +1,42 @@
+.page-heading {
+  margin-bottom: 22rpx;
+}
+
+.order-list {
+  display: flex;
+  flex-direction: column;
+  gap: 18rpx;
+}
+
+.order-card {
+  padding: 24rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.order-head {
+  align-items: flex-start;
+  gap: 18rpx;
+}
+
+.order-title-wrap {
+  min-width: 0;
+}
+
+.order-meta {
+  margin-top: 8rpx;
+  color: #64748b;
+  font-size: 23rpx;
+}
+
+.order-footer {
+  margin-top: 20rpx;
+  padding-top: 18rpx;
+  border-top: 1rpx solid #edf1f5;
+}
+
 .tag {
   min-width: 120rpx;
   text-align: center;
diff --git a/miniapp/miniprogram/pages/pageStyles.test.js b/miniapp/miniprogram/pages/pageStyles.test.js
new file mode 100644
index 0000000..d8431b4
--- /dev/null
+++ b/miniapp/miniprogram/pages/pageStyles.test.js
@@ -0,0 +1,68 @@
+const fs = require('fs')
+const path = require('path')
+
+const root = path.resolve(__dirname, '..')
+
+function readPage(page, ext, name = 'index') {
+  return fs.readFileSync(path.join(root, 'pages', page, `${name}.${ext}`), 'utf8')
+}
+
+function readPageFile(page, name, ext) {
+  return fs.readFileSync(path.join(root, 'pages', page, `${name}.${ext}`), 'utf8')
+}
+
+function selectorExists(wxss, selector) {
+  return new RegExp(`${selector.replace('.', '\\.')}\\s*[{,]`).test(wxss)
+}
+
+describe('miniapp page styling', () => {
+  const pageStyleExpectations = [
+    ['home', 'index', ['.home-hero', '.service-grid', '.banner-card', '.content-card']],
+    ['products', 'index', ['.page-heading', '.product-card', '.product-thumb', '.category-item']],
+    ['express', 'create', ['.page-heading', '.form-card', '.fee-panel', '.field-label']],
+    ['group-buy', 'index', ['.page-heading', '.group-card', '.group-cover', '.stock-line']],
+    ['second-hand', 'index', ['.page-heading', '.second-card', '.second-cover', '.publish-button']],
+    ['notices', 'index', ['.page-heading', '.notice-card', '.notice-content']],
+    ['orders', 'index', ['.page-heading', '.order-card', '.order-meta']],
+    ['profile', 'index', ['.profile-hero', '.menu-card', '.menu-icon']],
+    ['address', 'index', ['.page-heading', '.address-card', '.address-form']]
+  ]
+
+  test.each(pageStyleExpectations)('%s page has dedicated visual styles', (page, name, selectors) => {
+    const wxss = readPage(page, 'wxss', name)
+
+    expect(wxss.length).toBeGreaterThan(300)
+    selectors.forEach((selector) => {
+      expect(selectorExists(wxss, selector)).toBe(true)
+    })
+  })
+
+  test('detail pages have order and purchase layouts', () => {
+    const productDetail = readPageFile('products', 'detail', 'wxss')
+    const groupDetail = readPageFile('group-buy', 'detail', 'wxss')
+    const orderDetail = readPageFile('orders', 'detail', 'wxss')
+
+    expect(selectorExists(productDetail, '.detail-hero')).toBe(true)
+    expect(selectorExists(productDetail, '.purchase-card')).toBe(true)
+    expect(selectorExists(groupDetail, '.detail-hero')).toBe(true)
+    expect(selectorExists(groupDetail, '.purchase-card')).toBe(true)
+    expect(selectorExists(orderDetail, '.summary-card')).toBe(true)
+    expect(selectorExists(orderDetail, '.detail-line')).toBe(true)
+  })
+
+  test('global stylesheet provides shared design primitives', () => {
+    const appWxss = fs.readFileSync(path.join(root, 'app.wxss'), 'utf8')
+
+    ;[
+      '.page-heading',
+      '.card-title',
+      '.empty-state',
+      '.form-card',
+      '.action-button',
+      '.pill',
+      '.media-placeholder'
+    ].forEach((selector) => {
+      expect(selectorExists(appWxss, selector)).toBe(true)
+    })
+  })
+})
diff --git a/miniapp/miniprogram/pages/products/detail.wxml b/miniapp/miniprogram/pages/products/detail.wxml
index da617fe..c624613 100644
--- a/miniapp/miniprogram/pages/products/detail.wxml
+++ b/miniapp/miniprogram/pages/products/detail.wxml
@@ -1,34 +1,48 @@
-<view class="page" wx:if="{{product}}">
-  <view class="card">
-    <view class="section-title">{{product.name}}</view>
-    <view class="muted">{{product.description || '社区商品'}}</view>
+<view class="page detail-page" wx:if="{{product}}">
+  <view class="detail-hero">
+    <image wx:if="{{product.coverUrl}}" class="detail-cover" src="{{product.coverUrl}}" mode="aspectFill" />
+    <view wx:else class="detail-cover media-placeholder">货</view>
+    <view class="detail-info">
+      <view class="tag">{{product.status}}</view>
+      <view class="detail-title">{{product.name}}</view>
+      <view class="muted">{{product.description || '社区商品'}}</view>
+      <view wx:if="{{product.skus.length}}" class="detail-price">¥{{product.skus[skuIndex].priceCent / 100}}</view>
+    </view>
   </view>
 
-  <view class="card">
-    <view class="muted">规格</view>
+  <view class="purchase-card form-card" wx:if="{{product.skus.length}}">
+    <view class="card-title form-title">下单信息</view>
+    <view class="field-label">规格</view>
     <picker mode="selector" range="{{product.skus}}" range-key="skuName" value="{{skuIndex}}" bindchange="onSkuChange">
       <view class="picker">{{product.skus[skuIndex].skuName}} / ¥{{product.skus[skuIndex].priceCent / 100}} / 库存 {{product.skus[skuIndex].stock}}</view>
     </picker>
-    <view class="muted">数量</view>
+
+    <view class="field-label">数量</view>
     <input class="input" type="number" value="{{form.quantity}}" bindinput="onQuantityChange" />
-    <view class="muted">配送方式</view>
-    <radio-group bindchange="onMethodChange">
+
+    <view class="field-label">配送方式</view>
+    <radio-group class="radio-grid" bindchange="onMethodChange">
       <label class="radio"><radio value="IMMEDIATE" checked="{{form.deliveryMethod === 'IMMEDIATE'}}" />立即配送</label>
       <label class="radio"><radio value="SCHEDULED" checked="{{form.deliveryMethod === 'SCHEDULED'}}" />预约配送</label>
       <label class="radio"><radio value="SELF_PICKUP" checked="{{form.deliveryMethod === 'SELF_PICKUP'}}" />自提</label>
     </radio-group>
+
     <view wx:if="{{form.deliveryMethod !== 'SELF_PICKUP'}}">
-      <view class="muted">收货地址</view>
+      <view class="field-label">收货地址</view>
       <picker mode="selector" range="{{addresses}}" range-key="detail" value="{{addressIndex}}" bindchange="onAddressChange">
         <view class="picker">{{addresses[addressIndex] ? addresses[addressIndex].building + ' ' + addresses[addressIndex].room + ' ' + addresses[addressIndex].detail : '请选择地址'}}</view>
       </picker>
     </view>
+
     <view wx:if="{{form.deliveryMethod === 'SCHEDULED'}}">
-      <view class="muted">预约时间</view>
+      <view class="field-label">预约时间</view>
       <input class="input" placeholder="2026-07-07T18:30:00" bindinput="onScheduledTimeChange" />
     </view>
-    <view class="muted">备注</view>
-    <textarea class="textarea" bindinput="onRemarkInput" />
-    <button class="primary" loading="{{submitting}}" bindtap="submit">提交订单</button>
+
+    <view class="field-label">备注</view>
+    <textarea class="textarea" placeholder="口味、送达说明等" bindinput="onRemarkInput" />
+    <button class="primary action-button" loading="{{submitting}}" bindtap="submit">提交订单</button>
   </view>
+
+  <view wx:else class="empty-state">暂无可选规格</view>
 </view>
diff --git a/miniapp/miniprogram/pages/products/detail.wxss b/miniapp/miniprogram/pages/products/detail.wxss
index 30802d1..de4855d 100644
--- a/miniapp/miniprogram/pages/products/detail.wxss
+++ b/miniapp/miniprogram/pages/products/detail.wxss
@@ -1,5 +1,63 @@
-.radio {
-  display: block;
-  height: 60rpx;
-  line-height: 60rpx;
+.detail-page {
+  padding-bottom: 60rpx;
+}
+
+.detail-hero {
+  overflow: hidden;
+  margin-bottom: 22rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.detail-cover {
+  width: 100%;
+  height: 360rpx;
+}
+
+.detail-info {
+  padding: 26rpx;
+}
+
+.detail-title {
+  margin-top: 14rpx;
+  color: #111827;
+  font-size: 40rpx;
+  font-weight: 900;
+  line-height: 1.2;
+}
+
+.detail-price {
+  margin-top: 18rpx;
+  color: #c2410c;
+  font-size: 42rpx;
+  font-weight: 900;
+}
+
+.purchase-card {
+  margin-bottom: 20rpx;
+}
+
+.form-title {
+  margin-bottom: 20rpx;
+}
+
+.radio-grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 12rpx;
+  margin-bottom: 20rpx;
+}
+
+.radio {
+  min-height: 72rpx;
+  display: flex;
+  align-items: center;
+  padding: 0 12rpx;
+  background: #f8fafc;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 14rpx;
+  color: #334155;
+  font-size: 24rpx;
 }
diff --git a/miniapp/miniprogram/pages/products/index.js b/miniapp/miniprogram/pages/products/index.js
index 7d526f2..3930739 100644
--- a/miniapp/miniprogram/pages/products/index.js
+++ b/miniapp/miniprogram/pages/products/index.js
@@ -5,6 +5,7 @@ Page({
     loading: false,
     categories: [],
     activeCategoryId: null,
+    keyword: '',
     products: []
   },
 
@@ -14,7 +15,7 @@ Page({
 
   load() {
     this.setData({ loading: true })
-    Promise.all([listCategories(), listProducts()])
+    Promise.all([listCategories(), listProducts(null, this.data.keyword)])
       .then(([categories, products]) => {
         this.setData({
           categories: categories || [],
@@ -28,14 +29,24 @@ Page({
   chooseCategory(event) {
     const categoryId = event.currentTarget.dataset.id
     this.setData({ activeCategoryId: categoryId })
-    listProducts(categoryId)
+    listProducts(categoryId, this.data.keyword)
       .then((products) => this.setData({ products: products || [] }))
       .catch((error) => wx.showToast({ title: error.message, icon: 'none' }))
   },
 
   clearCategory() {
     this.setData({ activeCategoryId: null })
-    listProducts()
+    listProducts(null, this.data.keyword)
+      .then((products) => this.setData({ products: products || [] }))
+      .catch((error) => wx.showToast({ title: error.message, icon: 'none' }))
+  },
+
+  onKeywordInput(event) {
+    this.setData({ keyword: event.detail.value })
+  },
+
+  search() {
+    listProducts(this.data.activeCategoryId, this.data.keyword)
       .then((products) => this.setData({ products: products || [] }))
       .catch((error) => wx.showToast({ title: error.message, icon: 'none' }))
   },
diff --git a/miniapp/miniprogram/pages/products/index.wxml b/miniapp/miniprogram/pages/products/index.wxml
index 84d0b65..c8b600c 100644
--- a/miniapp/miniprogram/pages/products/index.wxml
+++ b/miniapp/miniprogram/pages/products/index.wxml
@@ -1,5 +1,15 @@
 <view class="page">
-  <view class="section-title">商品预定</view>
+  <view class="page-heading">
+    <view class="heading-eyebrow">社区便利店</view>
+    <view class="heading-title">商品预定</view>
+    <view class="heading-subtitle">挑好商品，社区内配送或自提</view>
+  </view>
+
+  <view class="search-row">
+    <input class="input search-input" placeholder="搜索商品" value="{{keyword}}" bindinput="onKeywordInput" confirm-type="search" bindconfirm="search" />
+    <button size="mini" class="primary search-button" bindtap="search">搜索</button>
+  </view>
+
   <scroll-view scroll-x class="category-scroll">
     <view class="category-item {{!activeCategoryId ? 'active' : ''}}" bindtap="clearCategory">全部</view>
     <view
@@ -13,16 +23,24 @@
     </view>
   </scroll-view>
 
-  <view wx:for="{{products}}" wx:key="id" class="card" bindtap="goDetail" data-id="{{item.id}}">
-    <view class="row between">
-      <view>
-        <view>{{item.name}}</view>
-        <view class="muted">{{item.description || '社区精选商品'}}</view>
+  <view class="product-list">
+    <view wx:for="{{products}}" wx:key="id" class="product-card" bindtap="goDetail" data-id="{{item.id}}">
+      <image wx:if="{{item.coverUrl}}" class="product-thumb" src="{{item.coverUrl}}" mode="aspectFill" />
+      <view wx:else class="product-thumb media-placeholder">货</view>
+      <view class="product-info">
+        <view class="row between">
+          <view class="card-title">{{item.name}}</view>
+          <view class="tag">{{item.status}}</view>
+        </view>
+        <view class="muted product-desc">{{item.description || '社区精选商品'}}</view>
+        <view class="row between product-footer">
+          <view wx:if="{{item.unitName}}" class="pill">{{item.unitName}}</view>
+          <view wx:else class="pill">社区好物</view>
+          <view wx:if="{{item.skus.length}}" class="price">¥{{item.skus[0].priceCent / 100}} 起</view>
+        </view>
       </view>
-      <view class="tag">{{item.status}}</view>
     </view>
-    <view wx:if="{{item.skus.length}}" class="price">¥{{item.skus[0].priceCent / 100}} 起</view>
   </view>
 
-  <view wx:if="{{!products.length && !loading}}" class="card muted">暂无商品</view>
+  <view wx:if="{{!products.length && !loading}}" class="empty-state">暂无商品</view>
 </view>
diff --git a/miniapp/miniprogram/pages/products/index.wxss b/miniapp/miniprogram/pages/products/index.wxss
index e7b4e63..c183fc4 100644
--- a/miniapp/miniprogram/pages/products/index.wxss
+++ b/miniapp/miniprogram/pages/products/index.wxss
@@ -1,6 +1,28 @@
+.page-heading {
+  padding-bottom: 4rpx;
+}
+
 .category-scroll {
   white-space: nowrap;
-  margin-bottom: 20rpx;
+  margin-bottom: 24rpx;
+}
+
+.search-row {
+  display: flex;
+  gap: 14rpx;
+  align-items: center;
+  margin-bottom: 18rpx;
+}
+
+.search-input {
+  flex: 1;
+  margin: 0;
+}
+
+.search-button {
+  width: 132rpx;
+  margin: 0;
+  min-height: 80rpx;
 }
 
 .category-item {
@@ -8,12 +30,15 @@
   align-items: center;
   justify-content: center;
   min-width: 120rpx;
-  height: 64rpx;
-  padding: 0 20rpx;
+  height: 68rpx;
+  padding: 0 24rpx;
   margin-right: 12rpx;
   background: #ffffff;
   border: 1rpx solid #d9e0e8;
-  border-radius: 6rpx;
+  border-radius: 999rpx;
+  color: #334155;
+  font-size: 25rpx;
+  font-weight: 700;
 }
 
 .category-item.active {
@@ -21,3 +46,43 @@
   background: #0f766e;
   border-color: #0f766e;
 }
+
+.product-list {
+  display: flex;
+  flex-direction: column;
+  gap: 18rpx;
+}
+
+.product-card {
+  display: flex;
+  gap: 20rpx;
+  padding: 20rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.product-thumb {
+  width: 160rpx;
+  height: 160rpx;
+  flex-shrink: 0;
+  overflow: hidden;
+  border-radius: 14rpx;
+}
+
+.product-info {
+  min-width: 0;
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  gap: 12rpx;
+}
+
+.product-desc {
+  min-height: 64rpx;
+}
+
+.product-footer {
+  margin-top: auto;
+}
diff --git a/miniapp/miniprogram/pages/profile/index.wxml b/miniapp/miniprogram/pages/profile/index.wxml
index 39b671c..42a93e2 100644
--- a/miniapp/miniprogram/pages/profile/index.wxml
+++ b/miniapp/miniprogram/pages/profile/index.wxml
@@ -1,11 +1,37 @@
 <view class="page">
-  <view class="card">
-    <view class="section-title">我的</view>
-    <view class="muted">邻小帮居民端</view>
+  <view class="profile-hero">
+    <view class="avatar">邻</view>
+    <view>
+      <view class="profile-title">我的</view>
+      <view class="profile-subtitle">邻小帮居民端</view>
+    </view>
+  </view>
+
+  <view class="menu-list">
+    <view class="menu-card" bindtap="go" data-url="/pages/orders/index">
+      <view class="menu-icon icon-order">单</view>
+      <view class="menu-text">我的订单</view>
+      <view class="menu-arrow">›</view>
+    </view>
+    <view class="menu-card" bindtap="go" data-url="/pages/address/index">
+      <view class="menu-icon icon-address">址</view>
+      <view class="menu-text">地址管理</view>
+      <view class="menu-arrow">›</view>
+    </view>
+    <view class="menu-card" bindtap="go" data-url="/pages/express/create">
+      <view class="menu-icon icon-express">快</view>
+      <view class="menu-text">代取快递</view>
+      <view class="menu-arrow">›</view>
+    </view>
+    <view class="menu-card" bindtap="go" data-url="/pages/products/index">
+      <view class="menu-icon icon-product">货</view>
+      <view class="menu-text">商品预定</view>
+      <view class="menu-arrow">›</view>
+    </view>
+    <view class="menu-card" bindtap="go" data-url="/pages/notices/index">
+      <view class="menu-icon icon-notice">告</view>
+      <view class="menu-text">社区公告</view>
+      <view class="menu-arrow">›</view>
+    </view>
   </view>
-  <view class="card menu" bindtap="go" data-url="/pages/orders/index">我的订单</view>
-  <view class="card menu" bindtap="go" data-url="/pages/address/index">地址管理</view>
-  <view class="card menu" bindtap="go" data-url="/pages/express/create">代取快递</view>
-  <view class="card menu" bindtap="go" data-url="/pages/products/index">商品预定</view>
-  <view class="card menu" bindtap="go" data-url="/pages/notices/index">社区公告</view>
 </view>
diff --git a/miniapp/miniprogram/pages/profile/index.wxss b/miniapp/miniprogram/pages/profile/index.wxss
index 8f7cb0d..f3280af 100644
--- a/miniapp/miniprogram/pages/profile/index.wxss
+++ b/miniapp/miniprogram/pages/profile/index.wxss
@@ -1,3 +1,99 @@
-.menu {
-  font-weight: 600;
+.profile-hero {
+  display: flex;
+  align-items: center;
+  gap: 22rpx;
+  padding: 30rpx;
+  margin-bottom: 22rpx;
+  color: #ffffff;
+  background: #0f766e;
+  border-radius: 16rpx;
+  box-shadow: 0 14rpx 34rpx rgba(15, 118, 110, 0.2);
+}
+
+.avatar {
+  width: 96rpx;
+  height: 96rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #0f766e;
+  background: #ffffff;
+  border-radius: 50%;
+  font-size: 34rpx;
+  font-weight: 900;
+}
+
+.profile-title {
+  font-size: 40rpx;
+  font-weight: 900;
+  line-height: 1.2;
+}
+
+.profile-subtitle {
+  margin-top: 8rpx;
+  color: rgba(255, 255, 255, 0.82);
+  font-size: 24rpx;
+}
+
+.menu-list {
+  display: flex;
+  flex-direction: column;
+  gap: 16rpx;
+}
+
+.menu-card {
+  display: flex;
+  align-items: center;
+  gap: 18rpx;
+  min-height: 104rpx;
+  padding: 20rpx 22rpx;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.menu-icon {
+  width: 56rpx;
+  height: 56rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #ffffff;
+  border-radius: 16rpx;
+  font-size: 24rpx;
+  font-weight: 900;
+}
+
+.menu-text {
+  flex: 1;
+  color: #111827;
+  font-size: 29rpx;
+  font-weight: 800;
+}
+
+.menu-arrow {
+  color: #94a3b8;
+  font-size: 42rpx;
+  line-height: 1;
+}
+
+.icon-order {
+  background: #be123c;
+}
+
+.icon-address {
+  background: #33536f;
+}
+
+.icon-express {
+  background: #2563eb;
+}
+
+.icon-product {
+  background: #0f766e;
+}
+
+.icon-notice {
+  background: #c2410c;
 }
diff --git a/miniapp/miniprogram/pages/second-hand/create.js b/miniapp/miniprogram/pages/second-hand/create.js
index 495d1ac..3c1518d 100644
--- a/miniapp/miniprogram/pages/second-hand/create.js
+++ b/miniapp/miniprogram/pages/second-hand/create.js
@@ -1,10 +1,10 @@
 const { createSecondGoods } = require('../../api/secondGoodsApi')
-const { setField } = require('../../utils/request')
+const { setField, uploadFile } = require('../../utils/request')
 
 Page({
   data: {
     submitting: false,
-    imageText: '',
+    uploading: false,
     form: {
       title: '',
       priceCent: 0,
@@ -28,14 +28,43 @@ Page({
     this.setData({ 'form.tradeMethod': event.detail.value })
   },
 
-  onImageInput(event) {
-    const imageText = event.detail.value
-    this.setData({
-      imageText,
-      'form.imageUrls': imageText ? imageText.split(',').map((item) => item.trim()).filter(Boolean) : []
+  chooseImages() {
+    if (this.data.uploading) {
+      return
+    }
+    wx.chooseMedia({
+      count: Math.max(1, 6 - this.data.form.imageUrls.length),
+      mediaType: ['image'],
+      sourceType: ['album', 'camera'],
+      success: (result) => {
+        const files = result.tempFiles || []
+        this.uploadImages(files.map((item) => item.tempFilePath))
+      }
     })
   },
 
+  uploadImages(filePaths) {
+    if (!filePaths.length) {
+      return
+    }
+    this.setData({ uploading: true })
+    Promise.all(filePaths.map((filePath) => uploadFile(filePath)))
+      .then((results) => {
+        const urls = results.map((item) => item.url).filter(Boolean)
+        this.setData({
+          'form.imageUrls': this.data.form.imageUrls.concat(urls).slice(0, 6)
+        })
+      })
+      .catch((error) => wx.showToast({ title: error.message, icon: 'none' }))
+      .finally(() => this.setData({ uploading: false }))
+  },
+
+  removeImage(event) {
+    const index = Number(event.currentTarget.dataset.index)
+    const next = this.data.form.imageUrls.filter((item, itemIndex) => itemIndex !== index)
+    this.setData({ 'form.imageUrls': next })
+  },
+
   submit() {
     if (this.data.submitting) {
       return
diff --git a/miniapp/miniprogram/pages/second-hand/create.wxml b/miniapp/miniprogram/pages/second-hand/create.wxml
index 9d9cc3b..1b25585 100644
--- a/miniapp/miniprogram/pages/second-hand/create.wxml
+++ b/miniapp/miniprogram/pages/second-hand/create.wxml
@@ -1,16 +1,40 @@
 <view class="page">
-  <view class="section-title">发布闲置</view>
-  <view class="card">
+  <view class="page-heading">
+    <view class="heading-eyebrow">发布审核</view>
+    <view class="heading-title">发布闲置</view>
+    <view class="heading-subtitle">填写真实信息，审核通过后展示给邻居</view>
+  </view>
+
+  <view class="form-card publish-form">
+    <view class="field-label">标题</view>
     <input class="input" placeholder="标题" data-field="title" bindinput="onFieldInput" />
+
+    <view class="field-label">价格</view>
     <input class="input" placeholder="价格（元）" type="digit" bindinput="onPriceInput" />
+
+    <view class="field-label">分类</view>
     <input class="input" placeholder="分类" data-field="category" bindinput="onFieldInput" />
+
+    <view class="field-label">联系电话</view>
     <input class="input" placeholder="联系电话" data-field="contactPhone" bindinput="onFieldInput" />
-    <radio-group bindchange="onTradeMethodChange">
+
+    <view class="field-label">交易方式</view>
+    <radio-group class="radio-grid" bindchange="onTradeMethodChange">
       <label class="radio"><radio value="FACE_TO_FACE" checked="{{form.tradeMethod === 'FACE_TO_FACE'}}" />面交</label>
       <label class="radio"><radio value="DELIVERY" checked="{{form.tradeMethod === 'DELIVERY'}}" />可配送</label>
     </radio-group>
-    <input class="input" placeholder="图片 URL，多个用英文逗号分隔" value="{{imageText}}" bindinput="onImageInput" />
+
+    <view class="field-label">图片</view>
+    <view class="image-grid">
+      <view wx:for="{{form.imageUrls}}" wx:key="*this" class="image-item">
+        <image src="{{item}}" mode="aspectFill" />
+        <button size="mini" class="remove" data-index="{{index}}" bindtap="removeImage">删除</button>
+      </view>
+      <button wx:if="{{form.imageUrls.length < 6}}" class="image-picker" loading="{{uploading}}" bindtap="chooseImages">上传图片</button>
+    </view>
+
+    <view class="field-label">描述</view>
     <textarea class="textarea" placeholder="描述" data-field="description" bindinput="onFieldInput" />
-    <button class="primary" loading="{{submitting}}" bindtap="submit">提交审核</button>
+    <button class="primary action-button" loading="{{submitting}}" bindtap="submit">提交审核</button>
   </view>
 </view>
diff --git a/miniapp/miniprogram/pages/second-hand/create.wxss b/miniapp/miniprogram/pages/second-hand/create.wxss
index 30802d1..b4d71ca 100644
--- a/miniapp/miniprogram/pages/second-hand/create.wxss
+++ b/miniapp/miniprogram/pages/second-hand/create.wxss
@@ -1,5 +1,78 @@
-.radio {
-  display: block;
-  height: 60rpx;
-  line-height: 60rpx;
+.page-heading {
+  margin-bottom: 22rpx;
+}
+
+.publish-form {
+  padding-bottom: 28rpx;
+}
+
+.radio-grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 12rpx;
+  margin-bottom: 20rpx;
+}
+
+.radio {
+  min-height: 72rpx;
+  display: flex;
+  align-items: center;
+  padding: 0 14rpx;
+  color: #334155;
+  background: #f8fafc;
+  border: 1rpx solid #e2e8f0;
+  border-radius: 14rpx;
+  font-size: 24rpx;
+}
+
+.image-grid {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+  gap: 12rpx;
+  margin: 20rpx 0;
+}
+
+.image-item,
+.image-picker {
+  width: 100%;
+  aspect-ratio: 1;
+  margin: 0;
+}
+
+.image-item {
+  position: relative;
+  overflow: hidden;
+  border-radius: 14rpx;
+  background: #eef3f7;
+}
+
+.image-item image {
+  width: 100%;
+  height: 100%;
+}
+
+.remove {
+  position: absolute;
+  right: 8rpx;
+  bottom: 8rpx;
+  margin: 0;
+  font-size: 22rpx;
+  color: #ffffff;
+  background: rgba(15, 23, 42, 0.62);
+}
+
+.image-picker {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border: 1rpx dashed #8aa0b5;
+  color: #33536f;
+  background: #f8fafc;
+  border-radius: 14rpx;
+  font-size: 26rpx;
+  font-weight: 700;
+}
+
+.action-button {
+  margin-top: 8rpx;
 }
diff --git a/miniapp/miniprogram/pages/second-hand/index.js b/miniapp/miniprogram/pages/second-hand/index.js
index 4ef812b..f66428c 100644
--- a/miniapp/miniprogram/pages/second-hand/index.js
+++ b/miniapp/miniprogram/pages/second-hand/index.js
@@ -3,6 +3,7 @@ const { listSecondGoods } = require('../../api/secondGoodsApi')
 Page({
   data: {
     loading: false,
+    keyword: '',
     goods: []
   },
 
@@ -16,12 +17,20 @@ Page({
 
   load() {
     this.setData({ loading: true })
-    listSecondGoods()
+    listSecondGoods(null, this.data.keyword)
       .then((goods) => this.setData({ goods: goods || [] }))
       .catch((error) => wx.showToast({ title: error.message, icon: 'none' }))
       .finally(() => this.setData({ loading: false }))
   },
 
+  onKeywordInput(event) {
+    this.setData({ keyword: event.detail.value })
+  },
+
+  search() {
+    this.load()
+  },
+
   goCreate() {
     wx.navigateTo({ url: '/pages/second-hand/create' })
   },
diff --git a/miniapp/miniprogram/pages/second-hand/index.wxml b/miniapp/miniprogram/pages/second-hand/index.wxml
index 868ea27..90ca1fc 100644
--- a/miniapp/miniprogram/pages/second-hand/index.wxml
+++ b/miniapp/miniprogram/pages/second-hand/index.wxml
@@ -1,18 +1,36 @@
 <view class="page">
-  <view class="row between section">
-    <view class="section-title">二手闲置</view>
-    <button size="mini" class="primary" bindtap="goCreate">发布</button>
-  </view>
-  <view wx:for="{{goods}}" wx:key="id" class="card">
-    <view class="row between">
-      <view>
-        <view>{{item.title}}</view>
-        <view class="muted">{{item.category}} / {{item.tradeMethod}}</view>
-      </view>
-      <view class="price">¥{{item.priceCent / 100}}</view>
+  <view class="page-heading row between">
+    <view>
+      <view class="heading-eyebrow">邻里流转</view>
+      <view class="heading-title">二手闲置</view>
+      <view class="heading-subtitle">发布闲置，线下联系交易</view>
     </view>
-    <view class="muted">{{item.description}}</view>
-    <button size="mini" class="ghost" data-phone="{{item.contactPhone}}" bindtap="callSeller">联系卖家</button>
+    <button size="mini" class="primary publish-button" bindtap="goCreate">发布</button>
   </view>
-  <view wx:if="{{!goods.length && !loading}}" class="card muted">暂无闲置</view>
+
+  <view class="search-row">
+    <input class="input search-input" placeholder="搜索闲置" value="{{keyword}}" bindinput="onKeywordInput" confirm-type="search" bindconfirm="search" />
+    <button size="mini" class="primary search-button" bindtap="search">搜索</button>
+  </view>
+
+  <view class="second-grid">
+    <view wx:for="{{goods}}" wx:key="id" class="second-card">
+      <image wx:if="{{item.imageUrls.length}}" class="second-cover" src="{{item.imageUrls[0]}}" mode="aspectFill" />
+      <view wx:else class="second-cover media-placeholder">闲</view>
+      <view class="second-body">
+        <view class="card-title">{{item.title}}</view>
+        <view class="row between">
+          <view class="pill">{{item.category}}</view>
+          <view class="price">¥{{item.priceCent / 100}}</view>
+        </view>
+        <view class="muted second-desc">{{item.description}}</view>
+        <view class="row between">
+          <view class="muted">{{item.tradeMethod}}</view>
+          <button size="mini" class="ghost contact-button" data-phone="{{item.contactPhone}}" bindtap="callSeller">联系</button>
+        </view>
+      </view>
+    </view>
+  </view>
+
+  <view wx:if="{{!goods.length && !loading}}" class="empty-state">暂无闲置</view>
 </view>
diff --git a/miniapp/miniprogram/pages/second-hand/index.wxss b/miniapp/miniprogram/pages/second-hand/index.wxss
index 4049a75..572098a 100644
--- a/miniapp/miniprogram/pages/second-hand/index.wxss
+++ b/miniapp/miniprogram/pages/second-hand/index.wxss
@@ -1,3 +1,68 @@
-.ghost {
-  margin-top: 16rpx;
+.page-heading {
+  align-items: flex-start;
+  gap: 18rpx;
+}
+
+.search-row {
+  display: flex;
+  gap: 14rpx;
+  align-items: center;
+  margin-bottom: 22rpx;
+}
+
+.search-input {
+  flex: 1;
+  margin: 0;
+}
+
+.search-button {
+  width: 132rpx;
+  margin: 0;
+  min-height: 80rpx;
+}
+
+.publish-button {
+  width: 124rpx;
+  margin: 8rpx 0 0;
+}
+
+.second-grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 18rpx;
+}
+
+.second-card {
+  overflow: hidden;
+  background: #ffffff;
+  border: 1rpx solid #e4eaf0;
+  border-radius: 16rpx;
+  box-shadow: 0 8rpx 24rpx rgba(20, 36, 58, 0.05);
+}
+
+.second-cover {
+  width: 100%;
+  height: 210rpx;
+}
+
+.second-body {
+  padding: 18rpx;
+  display: flex;
+  flex-direction: column;
+  gap: 12rpx;
+}
+
+.second-desc {
+  min-height: 72rpx;
+  display: -webkit-box;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  -webkit-line-clamp: 2;
+  -webkit-box-orient: vertical;
+}
+
+.contact-button {
+  min-width: 92rpx;
+  margin: 0;
+  padding: 0 12rpx;
 }
diff --git a/miniapp/miniprogram/project.config.json b/miniapp/miniprogram/project.config.json
new file mode 100644
index 0000000..24811ec
--- /dev/null
+++ b/miniapp/miniprogram/project.config.json
@@ -0,0 +1,28 @@
+{
+  "appid": "wxf634a69e89290cc7",
+  "compileType": "miniprogram",
+  "libVersion": "3.16.2",
+  "packOptions": {
+    "ignore": [],
+    "include": []
+  },
+  "setting": {
+    "coverView": true,
+    "es6": true,
+    "postcss": true,
+    "minified": true,
+    "enhance": true,
+    "showShadowRootInWxmlPanel": true,
+    "packNpmRelationList": [],
+    "babelSetting": {
+      "ignore": [],
+      "disablePlugins": [],
+      "outputPath": ""
+    }
+  },
+  "condition": {},
+  "editorSetting": {
+    "tabIndent": "insertSpaces",
+    "tabSize": 2
+  }
+}
\ No newline at end of file
diff --git a/miniapp/miniprogram/utils/request.js b/miniapp/miniprogram/utils/request.js
index 7c6f8fa..bf37ccc 100644
--- a/miniapp/miniprogram/utils/request.js
+++ b/miniapp/miniprogram/utils/request.js
@@ -3,6 +3,13 @@ function ensureToken() {
   if (app.globalData.token) {
     return Promise.resolve(app.globalData.token)
   }
+  if (app.globalData.useDevLogin) {
+    return devLogin(app)
+  }
+  return wxLogin(app)
+}
+
+function devLogin(app) {
   return new Promise((resolve, reject) => {
     wx.request({
       url: app.globalData.apiBaseUrl + '/api/auth/dev-miniapp-login',
@@ -25,6 +32,37 @@ function ensureToken() {
   })
 }
 
+function wxLogin(app) {
+  return new Promise((resolve, reject) => {
+    wx.login({
+      success(loginResult) {
+        if (!loginResult.code) {
+          reject(new Error('微信登录失败'))
+          return
+        }
+        wx.request({
+          url: app.globalData.apiBaseUrl + '/api/auth/miniapp-login',
+          method: 'POST',
+          data: {
+            code: loginResult.code
+          },
+          success(res) {
+            if (res.statusCode >= 200 && res.statusCode < 300 && res.data && res.data.code === 0) {
+              app.globalData.token = res.data.data.token
+              app.globalData.user = res.data.data
+              resolve(app.globalData.token)
+              return
+            }
+            reject(new Error((res.data && res.data.message) || '登录失败'))
+          },
+          fail: reject
+        })
+      },
+      fail: reject
+    })
+  })
+}
+
 function request(options) {
   const app = getApp()
   return new Promise((resolve, reject) => {
@@ -50,6 +88,40 @@ function request(options) {
   })
 }
 
+function uploadFile(filePath) {
+  const app = getApp()
+  return new Promise((resolve, reject) => {
+    ensureToken().then((token) => {
+      wx.uploadFile({
+        url: app.globalData.apiBaseUrl + '/api/files/upload',
+        filePath,
+        name: 'file',
+        header: {
+          Authorization: token,
+          satoken: token
+        },
+        success(res) {
+          let body = res.data
+          if (typeof body === 'string') {
+            try {
+              body = JSON.parse(body)
+            } catch (error) {
+              reject(new Error('上传失败'))
+              return
+            }
+          }
+          if (res.statusCode >= 200 && res.statusCode < 300 && body && body.code === 0) {
+            resolve(body.data)
+            return
+          }
+          reject(new Error((body && body.message) || '上传失败'))
+        },
+        fail: reject
+      })
+    }).catch(reject)
+  })
+}
+
 function yuan(cent) {
   return ((cent || 0) / 100).toFixed(2)
 }
@@ -85,6 +157,7 @@ function setField(page, event) {
 
 module.exports = {
   request,
+  uploadFile,
   yuan,
   statusText,
   setField