.center {
	position: relative;
	width:100%;
	min-width:1000px;
	height: auto;
	overflow: hidden;
}
.banner {
	position: relative;
	width: 100%;
	overflow: hidden;
	text-align:center;
	margin: 0 auto;
	width:100%;
	height:1px;
	padding-bottom: 41.66666666666%;
	background: transparent url("../images/banner.jpg") no-repeat scroll 0 0;
	-webkit-background-size: 100% 580px;
	-o-background-size: 100% 100%;
	background-size: 100% 100%;
}
.banner_content {
	margin: 0px auto;
	width: 1000px;
	height: 580px;
}
.paper_weixin {
	position: absolute;
	width:246px;
	height:437px;
	top: 80px;
	left: 50px;
}
.download {
	position: absolute;
	height: 580px;
	top: 12%;
	left: 45%;
	color: #000000;
}
.download_title {
	position: relative;
	display:block;
	font-size: 60px;
}
.download_desc {
	position: relative;
	display:block;
	font-size: 24px;
	padding: 20px 0;
}
.iphone {
	position: relative;
	display: block;
	margin-top:50px;
	width:220px;
	height:56px;
	background: transparent url("../images/iPhone.png") no-repeat scroll 0 0;
	cursor: pointer;
}
.android {
	position: relative;
	display: block;
	margin-top:20px;
	width:220px;
	height:56px;
	background: transparent url("../images/android.png") no-repeat scroll 0 0;
	cursor: pointer;
}
.qrcode {
	position: absolute;
	display: block;
	top:200px;
	left:260px;
	padding:5px 10px 10px 10px;
	background-color: rgb(143,146,150);
	border-radius: 5px;
}
.qrcode span {
	position: relative;
	display: block;
	margin-top: 5px;
	font-size: 12px;
	color: #FFFFFF;
	text-align: center;
	overflow: hidden;
}

.question{
	position: relative;
	padding: 100px 0;
	width: 1000px;
	text-align: center;
	margin: 0 auto;
	overflow: hidden;
}
.question p {
	color: rgb(116, 116, 116);
	font-size: 40px;
}
.question p span {
	color: rgb(255, 123, 132);
}
.question ul {
	margin-top:60px;
}
.question ul li {
	float: left;
	width: 25%;
}
.question li img {
	width:180px;
	height:180px;
}
.question li strong {
	display: block;
	color: rgb(60, 60, 60);
	line-height: 44px;
	font-size: 24px;
	font-weight: normal;
	margin-top: 19px;
}
.question li span {
	display: block;
	color: rgb(97, 97, 97);
	line-height: 20px;
	font-size: 14px;
}

#dialog_div {
	position: fixed;
	width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    display:none;
    outline:0;
    overflow: hidden;
}
#bg_dialog {
	position: absolute;
	box-sizing: border-box;
	width: 300px;
    height: 300px;
    top: calc( 50% - 150px);
    left : calc( 50% - 150px);
    background-color:#FFFFFF;
    border: 1px solid #edf1f2;
    overflow: hidden;
}
#dialog_download {
	position: relative;
	text-align: center;
	font-size: 14px;
	width: 200px;
    height: 200px;
    margin-top: 50px;
    margin-left: 50px;
    text-align: center;
    border: 1px solid #edf1f2;
}