.banner{margin:0 auto;width:1002px;overflow:hidden; position:relative;}
.large_box{margin-bottom:10px;width:1002px;height:668px;overflow:hidden; border:2px solid #e7e7e7; box-sizing:border-box; border-radius:5px;}
.large_box img{display:block}
.small_box{width:530px;height:73px;overflow:hidden; position:absolute; bottom:25px;}
.small_list{position:relative;float:left;width:480px;height:73px;overflow:hidden; left:50px;}
.small_list ul{height:73px;overflow:hidden}
.small_list ul li{position:relative;float:left;margin-right:10px;width:110px}
.small_list ul li img{display:block; height:73px;}
.small_list ul li .bun_bg{display:none;position:absolute;top:0;left:0;width:110px;height:73px;background:#352b29;filter:alpha(opacity=60);-moz-opacity:.6;-khtml-opacity:.6;opacity:.6}
.small_list ul li.on .bun_bg{display:block}
.left_btn{position:absolute;left:1%; top:44%; cursor:pointer; z-index:9;}
.left_btn i,.right_btn i{ font-size:44px;}
.right_btn{position:absolute; right:1%;top:44%;cursor:pointer;z-index:9;}