body{
	background-color: #e5ecfc;
	margin: 0;
	padding: 0;
	font-size: 13px;
	font-family: "Microsoft Yahei",微软雅黑;
}
a{
	text-decoration: none;
}
.header{
	position: fixed;
	background-color: #003F90;
	position: relative;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    position:fixed;/*固定作用*/
	top:0px;
	width: 100%;
	z-index:9999; /* 让导航栏浮在网页的高层位置，遇到flash和图片时候也能始终保持最外层 */
	text-align:left;
}
.header_wrap{
	height:80px;
	width: 1200px;
	position: relative;
	margin: 0 auto;
}
.header_logo{
	width: 300px;
	height: 38px;
	line-height: 38px;
	font-size: 20px;
	color: #fff;
	text-indent: 50px;
	background: url('../img/logo.png') left center no-repeat;
	background-size: 38px 38px;
	position: absolute;
	top: 50%;
	margin-top: -19px;
	left: 0px;
}

.header_nav{
	position: absolute;
	top: 20px;
	right: 10px;
}
.header_nav-item{
	position: relative;
	color: #fff;
	font-size: 14px;
	display: block;
	height: 40px;
	width: 140px;
	text-align: center;
	line-height: 40px;
	float: left;
	margin-left: 20px;
}
.dropdown {
    position: relative;
	width:140px;
    display: inline-block;
}
.dropdown-content {
    display: none;
    position: absolute;
    text-align: center;
    background-color: #e5ecfc;
    min-width: 140px;
    margin-top: 40px;
    margin-left: 20px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.dropdown-content a {
    color: black;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
}
.dropdown-content a:hover {
	background-color: #bdd9dc;
}
.dropdown:hover .dropdown-content {
    display: block;
}
.header_nav-item:hover{
	background-color: #e5ecfc;
	color: #004173;
}
.screen-1{
	height: 1120px;
	width：950px;
    margin-left: 240px;
	padding-top: 150px;
}
.screen-2{
	margin-top: -13px;
	padding-top: 80px;
    margin: 0 auto;
	height: 1200px;
	width: 1200px;
}
.screen-2_warning{
	float: left;
	margin-top: 50px;
	margin-left: 170px;
	height: 1100px;
	width: 888px;
}
.screen-3{
	height: 1600px;	
	width: 1200px;
	margin: 0 auto;
	margin-top: 100px;
	padding-top: 80px;
}
.screen-2_title,
.screen-3_title{
	height: 60px;
	padding-top: 30px;
	background-color: #003F90;
	color: #fff;
	text-align: center;	
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
.screen-3_article{
	margin: 0 auto;
	margin-top: 50px;
	height: 700px;
	width: 1200px;
	font-size: 14px;
}
.screen-3_article h3{
	color: #0168b5;
}
.screen-3_article_left{
	float: left;
	width: 300px;
	height: 600px;
	margin-left: 250px;
	line-height: 22px;
}
.screen-3_article_devider{
	float: left;
	height: 670px;
	width: 40px;
	border-right: 3px dashed #0168b5;
}
.screen-3_article_right{
	float: right;
	width: 300px;
	height: 475px;
	margin-right: 250px;
	line-height: 22px;
}
.screen-3_article h3{
	color: #0168b5;
}
.screen-3_article front{
	color: #dc143c;
	font-weight:100;
}
.screen-3_QRcode{
	float: right;
	position: relative;
	width: 150px;
	height: 150px;
	margin-right: 350px;
	background:url('../img/QRcode.png') no-repeat center;
}
.screen-3_QRcode-desc{
	float: right;
	position: absolute;
	top: 150px;
	left: 18px;
}
.map{
           padding-top: 80px;
	height: 900px;
	width: 1200px;
}
.screen-3_map-1{
	position: relative;
	width: 800px;
	height: 592px;
	left: 50%;
	margin-left: -400px;
	margin-top: 80px;
}
.screen-3_map-2{
	position: relative;
	width: 800px;
	height: 592px;
	left: 50%;
	margin-left: -400px;
	margin-top: 80px;
}
.screen-3_map_desc{
	position: absolute;
	height: 30px;
	width: 560px;
	top: 600px;
	left: 50%;
	margin-left: -280px;
	font-weight: bold;
	font-size: 24px;
	letter-spacing: 10px;
}
.screen-4{
	float: left;
	height: 325px;
	width: 100%;
	margin-top: 250px;
	background-color:#003F90;
	color: #fff;
}
.screen-4_wrap{
	width: 1200px;
	height: 300px;
	position: absolute;
	left: 50%;
	margin-left: -600px;
}
.screen-4_img{
    float: left;
	height: 152px;
	width: 152px;
	margin-top:10px;
    position:relative;
    left: 50%;
    margin-left: -76px;
	background: url('../img/QRcode.jpg') no-repeat center; 
}
.screen-4_left{
	position: absolute;
	left: 100px;
	width: 240px;
}
.screen-4_mid{
	float: left;
	width: 160px;
	position: absolute;
	left: 50%;
	margin-left: -80px;
}
.screen-4_right{
	float: right;
	position: absolute;
	right: 100px;
}

.footer{
	position: absolute;
	text-align: center;
	height: 30px;
	width: 1152px;
	border-top: 1px solid #30648b;
	left: 50%;
	margin-left: -571px;
	margin-top: 280px;
	padding-top: 20px;
}