/* banner */
img { border: 0px; }


.banner{width:100%; min-width:1200px; height:480px; overflow:hidden; position: relative; z-index:1;}

.banner .d1{width:100%;height:100%; background:#ffffff; background-size: cover; display:block; z-index:-1; position:absolute; left:0px;top:0px;}

.banner .d1 img{height: 480; position: absolute; left: 50%; margin-left: -960px; z-index:-1;}
/* -960是图片实际宽度的一半 */


.banner .d2{width:100%;height:30px;clear:both;position:absolute;z-index:10;left:0px;bottom:0;}
.banner .d2 ul{float:left;position:absolute;left:50%;top:0;margin:0 0 0 -80px;display:inline;}

.banner .d2 li{width:17px;height:15px;overflow:hidden;cursor:pointer;background:url(../images/img1.png) no-repeat center;float:left;margin:0 3px;display:inline;}

.banner .d2 li.nuw{background:url(../images/img1_1.png) no-repeat center;}