.QYYS .ys{padding-top:65px;font-size:18px;color:#404040}@media screen and (max-width:768px){.QYYS .ys{padding:65px 2vw 2vw;box-sizing:border-box}.QYYS .ys .f30{font-size:7vw;margin-bottom:20px}.QYYS .ys .f20,.QYYS .ys .f30{line-height:1.2;text-align:center}.QYYS .ys .f20{font-size:16px;margin-bottom:30px}.QYYS .ys .f18{font-size:16px}}@media screen and (max-width:768px){.QYYS .ys2{padding:0 2vw;box-sizing:border-box}}.QYYS .item{position:relative;overflow:hidden}.QYYS .item .big img{transition:all .3s}.QYYS .item .item_content{position:absolute;z-index:4;left:0;top:0;bottom:0;right:0}.QYYS .item .item_content .html{margin:0 8%;height:0;margin-top:0}.QYYS .item .item_content .html,.QYYS .item:after{transition:all .3s;-webkit-transition:all .3s;opacity:0}.QYYS .item:after{position:absolute;content:" ";z-index:2;left:0;top:0;bottom:0;right:0;background-color:rgba(0,0,0,.3)}.QYYS .item:hover .big img{transform:scale(1.05)}.QYYS .item:hover .item_content .html{height:330px;opacity:1}.QYYS .item:hover:after{opacity:1}@media screen and (max-width:768px){.QYYS .item{margin-bottom:20px}.QYYS .item .f28{font-size:20px;padding:16px 0}.QYYS .item .big img{transform:scale(1.05)}.QYYS .item .item_content .html{height:auto!important;margin:0 4vw!important;opacity:1;margin-top:25px!important;font-size:17px!important}.QYYS .item .item_content .html .pb50{padding-bottom:0}.QYYS .item:after{opacity:1}}