/*@font-face {
font-family: PingFangRegular;
src: url('../font/PingFang Regular.ttf');
}
@font-face {
font-family: PingFangMedium;
src: url('../font/PingFang Medium.ttf');
}*/
*{
	margin: 0;
	padding: 0;

}
html,
body {
	width: 100%;
	height: 100%;
	text-align: center;
}

.header{
	margin: 0 0;
	padding: 0 0;
	text-align: center;
	width: 100%;
	position: fixed;
	box-shadow: 0.06rem 0.06rem 0.06rem rgba(0,0,0,0.1);
	z-index: 10;
	background-color: #FFFFFF;
	height: 0.88rem;
	font-family: "microsoft yahei";
	font-family: arial;
}
.header .daohang_nav1{
	margin: 0 0.22rem;	
}
.header .daohang_nav1 .header_a_logo{
	float: left;
	margin-top: 0.33rem;
}
.header .daohang_nav1 .header_a_logo img{
	width: 1.53rem;
}
.header .daohang_nav1 .header_a_img1{
	float: right;
	margin-top: 0.26rem;
}
.header .daohang_nav1 .header_a_img1 img{
	width: 0.36rem;
}
.header .daohang_nav2{
	margin: 0 0.22rem;
	line-height: 0.88rem;
	background-color: #fff;
		display: none;
}
.header .daohang_nav2 .header_a_logo{
	float: left;
	margin-top: 0.33rem;
}
.header .daohang_nav2 .header_a_logo img{
	width: 1.53rem;
}
.header .daohang_nav2 .header_a_img2{
	float: right;
	margin-top: 0.26rem;
}
.header .daohang_nav2 .header_a_img2 img{
	width: 0.36rem;
}
.header .daohang_nav2 .selected_nav{
	position: absolute;
	left:0;
	top: 0.88rem;
	width: 100%;
	height: 100%;
	background-color: #FFFFFF;
	box-sizing: border-box;
}
.header .daohang_nav2 .selected_nav a{
	display: block;
	height: 0.73rem;
	background-color: #fff;
	text-decoration: none;
	color: #000;
	font-size: 0.32rem;
	line-height: 0.73rem;
	border-bottom: 1px solid #e8e8e8;
	font-family: "microsoft yahei";
	font-family: arial;
}
.header .daohang_nav2 .selected_nav #about_us{
	background-color: #e2e2e2;
}
.header .daohang_nav2 .selected_nav #join_us{
	background-color: #dbdbdb;
}
.header .daohang_nav2 .selected_nav #example{
	background-color: #e2e2e2;
}
.header .daohang_nav2 .selected_nav #app{
	background-color: #dbdbdb;
}
.content{
	margin: 0 auto;
	width: 100%;
}
.content .question_content{	
	margin: 0 0.22rem;
}
.content .question_content .title{
	padding-top: 1.44rem;
	font-size: 0.3rem;
	font-family: "microsoft yahei";
	font-family: arial;
	text-align: left;
}
.content .question_content .Box{
	border-bottom: 1px solid #E8E8E8;
	width: 100%;
	text-align: left;
}
.content .question_content .Q{
	margin-top: 0.4rem;
    color: #cc0000;
	font-size: 0.24rem;
	font-family: "microsoft yahei";
	font-family: arial;
	margin-bottom: 0.04rem;
	text-align: left;
}
.content .question_content  .A{
	color: #666;
	text-align: left;
	font-size: 0.22rem;
	font-family: "microsoft yahei";
	font-family: arial;
	margin-bottom: 0.38rem;
}
.footer-down img{
	width: 90%;
}