*{
	margin: 0;
	padding: 0;
	list-style-type: none;
	text-decoration: none;
	font-family: source-han-sans-simplified-c, sans-serif;
font-weight: 400;
}



/*header*/
.bg_index{
	margin: 0 auto;
    height: 121px;
    width: 100%;
	background-color: #4268EB;
	overflow: hidden;
}
.main_index{
	margin: 0 auto;
	width: 1200px;
	height: 121px;
}
.main_index img{
	width: 390px;
	height: 57px;
	float: left;
	margin-top: 34px;
	display: block;
    
}
.top_nav {
	height: 120px;
	width: 636px;
	float: left;
	margin-left: 174px;
}
.top_nav li{
	float: left;
	height: 120px;
	width: 106px;
	text-align: center;
	
}
.top_nav li a{
	font: Medium ;
	height: 71px;
	font-size:18px;
	color: aliceblue;
	display: block;
	padding-top: 47px;
}
.top_nav li a:hover,.top_nav .now{
	background-color: #4265D5;
	border-bottom: 3px solid #ffffff;
}

/*banner*/
.banner{
	margin: 0 auto;
	height: 633px;
	width: 100%;
	background-color: #3C64EB;
}
.banner_bg{
	background:url(../img/pic11.png) 730px 160px no-repeat;
	width:1280px;
	height:633px;
	margin: 0 auto;
}
.banner_left{
	height: 600px;
	float:left;
}
.banner_left1{
	height: 309px; 
	width: 600px;  
	margin-left: 80px; 
	margin-top: 89px; 
}
.banner_bg .banner_left1 p{
	font: Medium;
	font-size: 16px;
	text-align: left;
	letter-spacing: 0.22px;
	color: #FFFFFF;
	line-height: 30px;
	margin-top: 16px;
	text-indent: 2em;
}
.banner_left2{
	height: 200px; 
	width: 816px;  
	margin-left: 100px;  
}
.banner_left2 a{
	margin-top: 77px;
	width: 136px;
	height: 28px;
	float: left;
	padding: 15px 0 3px 0px; 
	text-align: center;
	border: 1px #00000000 solid;
	border-radius: 30px; 
	display: block; 
	color: #FFFFFF;
	font: Medium;
	font-size: 16px;
	line-height: 14px;
	background-color: #1ECFC3;
}
.banner_left2 a:hover{
	background-color: #455A64;
}
.banner_left2 a.btn2{
	margin-left: 50px;
}

.banner_right{
	width: 616px;
	height: 610px;
	margin-left: 200px;
	margin-top: 138px;
	
	position: absolute;
	z-index: 999;
}
.banner_right img{
	width: 616px;
	height: 610px;
}

/*resources*/
.resources{
	margin: 0 auto;
	height: 532px;
	background-color: #fafcfe;
}
.res_left{
	width: 1180px; 
	height:470px;
	padding-top: 60px;
	padding-left: 100px;
	background:url("../img/bgcir2.png") center center no-repeat;
	margin: 0 auto;
}
.res_left h2{
	font: Medium;
	font-size: 36px;
	line-height: 52px;
	color: #1D396B;
	letter-spacing: 1.91px;
	font-weight: normal;
	font-family: source-han-sans-simplified-c, sans-serif;
font-weight: 500;
font-style: normal;
}
.res_left hr{
	width: 150px; 
	margin-top: 17px;
}
.res_left p{
	font: Medium;
	font-size: 20px;
	text-align: left;
	line-height: 32px;
	margin-top: 48px;
	color: #1D396B;
}
.res_left a{
	margin-top: 200px;
	margin-right: 100px;
	width: 136px;
	height: 28px;
	float: right;
	padding: 13px 0 3px 0px; 
	text-align: center;
	border-radius: 30px; 
	display: block; 
	color: #FFFFFF;
	font: Medium;
	font-size: 16px;
	line-height: 14px;
	background-color: #1ECFC3;
}
.res_left a:hover{
	background-color: #455A64;
}

/*Journals & Conferences*/
.jc{
	margin: 0 auto;
	height: 532px;
	background-color: #5e8afc;
	
}

.jc_left{
	width: 1180px; 
	height:470px;
	padding-top: 60px;
	padding-left: 100px;
	background:url("../img/bgcir3.png") center center no-repeat;
	margin: 0 auto;
	
}
.jc_left h2{
	font: Medium;
	font-size: 36px;
	line-height: 52px;
	color: #ffffff;
	letter-spacing: 1.91px;
	font-weight: normal;
	font-family: source-han-sans-simplified-c, sans-serif;
font-weight: 500;
font-style: normal;;
}
.jc_left hr{
	width: 180px; 
	margin-top: 17px;
	color: #FFFFFF;
}
.jc_left p{
	font: Medium;
	font-size: 20px;
	text-align: left;
	line-height: 32px;
	margin-top: 48px;
	color: #FFFFFF;
}
.jc_left a{
	margin-top: 106px;
	width: 136px;
	height: 27px;
	float: left;
	padding: 14px 0 3px 0px; 
	text-align: center;
	border-radius: 30px; 
	display: block; 
	color: #3861EA;
	font: Medium;
	font-size: 16px;
	line-height: 14px;
	background: #FFFFFF;
}
.jc_left a:hover{
	background: none;
	color: #FFFFFF;
	border: 1px #FFFFFF solid;
}

.jc_right{
	float: right;
	width: 718px;
	height: 532px;
}
.jc_right img{
	margin-left: 100px;
	margin-top: 196px;
}


/*footer*/
footer{
	margin: 0 auto;
	height: 380px;
	background-color: #455A64;
}
.main_footer{
	width: 1220px;
	margin: 0 auto;
	padding-top: 60px;
}
.footer_left{
	width: 320px;
	float: left;
	padding-left: 60px;
}
.f_left_logo2{
	display: block;
	margin-bottom: 20px;
}

.f_notice{
	font-size: 16px;
	color: #FFFFFF;
	height: 40px;
	line-height: 40px;
	margin: 15px 0;
}
.f_notice a{
	width: 40px;
	height: 40px;
	line-height: 40px;
	display: inline-block;
	float: left;
	margin-right:4px;
}

.f_add{
	line-height: 26px;
	color: #8899a8;
}
.footer_right{
	width: auto;
	float: left;
	margin-left: 180px;
	margin-bottom: 25px;
	}
.footer_right ul{
	margin: 0 25px;
	float: left;
	width: 117px;
}
.footer_right .ul2{
	width: 430px;
}

.footer_right ul li{
	height: 35px;
}
.footer_right .ul1 li{
	height: 30px;
}
.footer_right .ul1 li.f_list_title{
	margin-bottom: 20px;
}
.footer_right ul li span{
	font: SemiBold;
	font-size: 18px;
	line-height: 34px;
	color: #FFFFFF;
	margin-bottom: 20px;
}
.footer_right ul li a{
	font: Regular;
	font-size: 14px;
	color: #8899a8;
	height: 26px;
	line-height: 26px;
	display: block;
	float: none;
	margin: 0px;
}	
.footer_right ul li p{
	font: Regular;
	font-size: 14px;
	color: #8899a8;
	height: 26px;
	line-height: 26px;
	display: block;
	float: none;
	margin-left: 25px;
	
}	
.footer_right ul li a:hover{
	text-decoration: underline;
}

.footer_right ul li img{
	vertical-align: middle; 
	margin-top: 7px; 
	float: left; 
	width: 15px; 
	height: 14px;
}
.footer_copyright{
	margin: 0 auto;
	height: 40px;
	text-align: center;
}
.footer_copyright p{
	height: 40px;
	line-height: 40px;
	color: #8899a8;
	border-top: 1px solid #8899a8;
}


.pic_mail{
	width: 180px;
	height: 20px;
	background: url(../img/pic_mail.png) right center no-repeat;
}
.pic_mail2{
	width: 100px;
	height: 25px;
	background: url(../img/pic_mail2.png) 75px 6px no-repeat;
}