.ban{ width:900px; /* height:600px; */ position:relative; overflow:hidden;margin:40px auto 0 auto;}
.ban2 ul li img{background-size: 100%;width: 100%;height: 581px;}
.ban2{ width:900px; height:500px; position:relative; /* overflow:hidden; */}
.ban2 ul{ position:absolute; left:0; top:0;}
.ban2 ul li{ width:900px; height:500px;}
.prev{ float:left; cursor:pointer;}
.num{ height:82px;overflow:hidden; width:785px; position:relative;float:left;}
.min_pic{ padding-top:100px; width:900px;,margin-top:50px;}
.num ul{ position:absolute; left:0; top:0;}
.num ul li{height:80px; margin-right:5px; padding:1px;}
.num ul li.on{ border:1px solid red; padding:0;}
.prev_btn1{ width:16px; text-align:center; height:18px; margin-top:40px; margin-right:20px; cursor:pointer; float:left;position: relative;}
.next_btn1{  width:16px; text-align:center; height:18px; margin-top:40px;cursor:pointer;float:right;position: relative;}
.prev1{ position:absolute; top:220px; left:20px; width:28px; height:51px;z-index:9;cursor:pointer;}
.next1{ position:absolute; top:220px; right:20px; width:28px; height:51px;z-index:9;cursor:pointer;}
.mhc{ background:#000; width:100%;opacity:0.5;-moz-opacity:0.5;filter:alpha(Opacity=50); position:absolute; left:0; top:0; display:none;}
.pop_up{ width:500px; height:500px; padding:10px; background:#fff; position:fixed; -position:absolute; left:50%; top:50%; margin-left:-255px; margin-top:-255px; display:none; z-index:99;}
.pop_up_xx{ width:40px; height:40px; position:absolute; top:-40px; right:0; cursor:pointer;}
.pop_up2{ width:500px; height:500px; position:relative; overflow:hidden;}
.pop_up2{ width:500px; height:500px; position:relative; overflow:hidden; float:left;}
.pop_up2 ul{ position:absolute; left:0; top:0;}
.pop_up2 ul li{ width:500px; height:500px; float:left;}
.jsj{width: 100%;text-align:center;font-size: 18px;margin-top:-54px;position: relative;background:rgba(0,0,0,0.5);height: 50px;display: block;color: #fff;display: block;text-decoration: none;line-height: 50px;}
</style>