.toped{height:500px;background:url("../img/6/ed.jpg") center top;}

.part1{background:#fff;padding-bottom:60px;padding-top:60px;min-height:600px;}
.cases li{margin-bottom:80px;}
.pic{float:left;border:1px solid #ebebeb;margin-right:15px;}
.info{float:left;}
.tit{font-size:18px;color:#333;display:block;margin-bottom:10px;}
.txt{line-height:180%;color:#666;}
.ibtn{display:block;margin-top:10px;color:#39a1ff;}
h1{font-size:40px;color:#333;font-weight:100;margin-bottom:40px;}
.sum{border:1px #ebebeb solid;background:#f7f7f7;height:204px;padding:50px;padding-left:260px;position:relative;line-height:200%;}
.sum .pic{border:0px;border-right:1px #ebebeb solid;margin-right:10px;position:absolute;top:0;left:0;}
.sum .pic img{}
.sum p{font-size:16px;}
.sum .com{float:right;font-size:16px;}
.main{line-height:200%;padding-top:50px;}
@media (max-width:768px){
    .pic{margin-bottom:15px;}
    .tit{display:block;width:100%;font-size:16px;}
    .txt{display:block;width:100%;font-size:14px;}
    .sum p{font-size:14px;}
    .sum{padding:10px;padding-left:220px;}
    h1{padding-left:15px;padding-right:15px;}
    .main{padding:50px 15px;}
}