.video{height:550px;background:#000}
.exchange_case{overflow:hidden;padding-bottom:50px;background:#f5f5f5}
.exchange_case .main{margin-top:40px}
.exchange_case .main .left{float:left;padding:20px 20px 0;width:235px;background:#fff}
.exchange_case .main .left h3{color:#2b2b2b;font-size:22px}
.exchange_case .main .left .now{margin-top:15px;color:#2b2b2b;font-size:14px}
.exchange_case .main .left .list{margin-top:40px}
.exchange_case .main .left .list a{display:block;margin-bottom:25px;padding-left:25px;height:50px;background:#fff url(../images/home/right_ad.png) no-repeat 150px center;background-size:16px;color:#adadad;font-size:18px;line-height:50px}
.exchange_case .main .left .list a:hover{background:#f5f5f5 url(../images/home/right_ad.png) no-repeat 150px center;background-size:16px}
.exchange_case .main .left .list .active{background:#f5f5f5 url(../images/home/right_ad.png) no-repeat 150px center;background-size:16px}
.exchange_case .main .left .list::-webkit-scrollbar-track-piece{width:10px;background-color:#f2f2f2}
.exchange_case .main .left .list::-webkit-scrollbar{width:10px;height:100%}
.exchange_case .main .left .list::-webkit-scrollbar-thumb{background:#282828;cursor:pointer}
.exchange_case .main .left .list::-webkit-scrollbar-thumb:hover{background:#282828;cursor:pointer}
.exchange_case .main .right{float:right;padding:20px 10px 30px;width:960px;background:#fff}
.exchange_case .main .right .section{float:left;margin-bottom:40px;padding:10px;width:310px;transitioN:.5s}
.exchange_case .main .right .section:hover{box-shadow:0 0 40px rgba(0,0,0,.2)}
.exchange_case .main .right .section:hover h3{border-bottom:1px solid #bdaf81;color:#bdaf81;transitioN:.5s}
.exchange_case .main .right .section:hover h3 span:after{border-bottom:3px solid #bdaf81;transitioN:.5s}
.exchange_case .main .right .section:hover .info a{color:#bdaf81;transitioN:.5s}
.exchange_case .main .right .section .image{width:290px;height:168px}
.exchange_case .main .right .section h3{margin-top:15px;padding-bottom:10px;border-bottom:1px solid #adadad;color:#2b2b2b;font-size:14px}
.exchange_case .main .right .section h3 span{position:relative}
.exchange_case .main .right .section h3 span:after{position:absolute;bottom:-9px;left:0;width:115%;border-bottom:3px solid #adadad;content:''}
.exchange_case .main .right .section .info{margin-top:10px}
.exchange_case .main .right .section .info a{color:#adadad;font-size:12px}
.cover{position:fixed;top:0;left:0;z-index:101;display:none;width:100%;height:100%;background:rgba(0,0,0,.9)}
.player{position:fixed;top:50%;left:50%;z-index:111;display:none;width:1000px;height:562.5px;transform:translate3d(-50%,-50%,0)}
.player .close{position:absolute;top:-20px;right:-20px;z-index:122;width:40px;height:40px;background:url(../images/home/close_white.png) no-repeat center center;background-size:contain}
.player .playerbox{width:100%;height:100%}