#top-nav{position:absolute;top:0;left:0;width:100%;height:60px;min-width:1000px;display:none}#top-nav .bg{position:relative;display:block;width:100%;height:100%;background-position:center;background-repeat:no-repeat;background-size:auto 100%;overflow:hidden}#top-nav .bg .gif{position:absolute;left:50%;top:10px;margin-left:520px;width:50px}#top-nav .bg .gif img{width:100%}#top-nav .navs{position:absolute;top:4px;left:50%;margin-left:-330px;width:830px}#top-nav .navs li{width:166px;height:54px;float:left}#top-nav .navs li.animate{animation:jump .4s ease both}#top-nav .navs li.item1{animation-delay:1s}#top-nav .navs li.item2{animation-delay:1.08s}#top-nav .navs li.item3{animation-delay:1.16s}#top-nav .navs li.item4{animation-delay:1.24s}#top-nav .navs li.item5{animation-delay:1.32s}#top-nav .navs li img{width:166px;transition:all .3s}#top-nav .navs li:hover img{margin-top:-3px}#top-nav .close,#top-nav .ad{position:absolute;overflow:hidden}#top-nav .close{display:none;right:4px;top:4px;width:10px;height:10px;background:url(//hao4.qhimg.com/t01675b8f524a21110f.png) no-repeat;background-position:left -20px;cursor:pointer;text-indent:10px;border:none;outline:none}#top-nav .ad{bottom:0;right:0;display:block;height:12px;width:22px;background:url(//hao2.qhimg.com/t01c5fc7f8612d6b610.png) no-repeat top left;text-indent:22px}@keyframes jump{0%{margin-top:0}50%{margin-top:-5px}100%{margin-top:0}}