@charset "UTF-8";*{box-sizing:border-box;line-height:1.2;margin:0;padding:0}a,button,img,input{-webkit-tap-highlight-color:transparent;background:transparent;border:0;outline:none}a{text-decoration:none}li{list-style-type:none}img[src=""]{visibility:hidden}body{font:14px/1.8 Microsoft YaHei,微软雅黑;position:relative}.bg{background:url(https://ak-gw.akspeedy.com/html/download/edg_s/bg.png) top no-repeat}.bg .c{background:url(https://ak-gw.akspeedy.com/html/download/edg_s/c.png) top no-repeat;height:3498px;margin:auto;overflow:hidden;position:relative;width:1200px}.bg .c .index-download-btn{background:url(https://ak-gw.akspeedy.com/html/download/edg_s/index-download-btn.png) 0 0 no-repeat;display:block;height:105px;margin:802px auto 0;position:relative;width:405px}.bg .c .index-download-btn:hover{background-position-x:-405px}.bg .c .index-download-btn:active{background-position-x:-810px}.bg .c .index-download-btn img{position:absolute;right:-55px;top:-25px}.bg .c .bottom-download-btn{background:url(https://ak-gw.akspeedy.com/html/download/edg_s/bottom-download-btn.png) 0 0 no-repeat;bottom:20px;display:none;height:105px;left:50%;margin-left:-202.5px;position:fixed;width:405px}.bg .c .bottom-download-btn:hover{background-position-x:-405px}.bg .c .bottom-download-btn:active{background-position-x:-810px}footer{background:#000;display:flex;height:134px;justify-content:center}footer .item{font-size:22px;margin:0 90px;min-width:40px;text-align:center}footer .item p{color:hsla(0,0%,100%,.4);margin-bottom:30px}footer .item a{color:#fff;opacity:.4;position:relative;transition:opacity .4s}footer .item a:hover{opacity:1}footer .item a:after{background:currentColor;content:"";height:2px;left:0;position:absolute;top:calc(100% + 5px);width:100%}