/*case*/
.case-1{background:#f3f3f3;}
.case-1 .pro-title div{border-bottom:none;}
.case-1 .pro-title div span{background:none;}
.case-1 i{display:block;margin:50px auto 30px auto;}
.case-1 img,.case-2 img{max-width:100%;height:auto;}
.case-3 li{float:left;box-sizing:border-box;width:49%;height:80px;margin:25px 0 0 2%;border:1px solid #eaeaea;padding:15px 10px 15px 20px;}
.case-3 li:nth-child(2n+1){margin-left:0;}
.case-3 li span{float:left;width:45px;text-align:center;margin-right:20px;}
.case-3 li i{margin-top:0;}
.case-3 li div{color:#000;font-size:18px;line-height:1;margin-bottom:5px;}
.case-nav{position:fixed;top:50%;left:50%;margin:0 0 0 650px;background:#0099e0;text-align:center;width:64px;}
.case-nav li a{display:block;padding:10px 0;color:#fff;font-size:12px;}
.case-nav li span{display:block;}
.case-nav li a:hover,.case-nav li.current a{background:#d9f3ff;color:#0099e0;}
.case-nav>a{color:#fff;display:block;background:#00aeff;padding:5px 0;}
.case-nav>a>i{margin-left:3px;}