page{
  background-color: #fff;
}

.about{
	display: flex;
	flex-direction: column;
	align-items: center;
	color: #444;
}

.about_logo{
	margin: 50px 0 20px 0;
	width: 70px;
	height: 70px;
	border-radius: 4px;
}

.about_version{
  margin-bottom: 50px;
  margin-top: 10px;
}

.about_introduce{
	text-indent: 2em;
}

.client_title{
  font-size: 24px;
}