#yd-header .yd-header-content .yd-header-center li.sixth-nav{font-weight:500}#yd-header .yd-header-content .yd-header-center li.sixth-nav a:before{content:"";display:block;width:100%;height:3px;background:#fff;position:absolute;bottom:0;left:0;transform:scaleX(1)}.yd-index-wrapper{background:#313a46}.yd-index-wrapper .content-box{min-width:1280px;margin:0 auto;padding-top:100px;min-height:600px;display:flex;flex-direction:column}.yd-index-wrapper .content-box .tab-head{width:100%;background:#313a46;margin:0 auto}.yd-index-wrapper .content-box .tab-head .head-content{width:1280px;margin:0 auto}.yd-index-wrapper .content-box .tab-head .head-content h2{border-top:1px solid #313a46;border-left:1px solid #313a46;background:#313a46;color:#fff;width:20%;height:25px;cursor:pointer;margin:0;float:left;text-align:center}.yd-index-wrapper .content-box .tab-content{width:100%;min-height:600px}.yd-index-wrapper .content-box .tab-content div{display:none}.yd-index-wrapper .content-box .selected{background-color:#313a46;color:#fff}.yd-index-wrapper .content-box .tab-content .show{display:block}