.banner{ width:100%;  margin:0 auto; text-align:center; background-image:url(../images/banner_ziu8.jpg); background-position:center;}
.banner{width:100%;overflow:hidden;position:relative}
.banner_inner{position:relative;height:500px;width:1920px;margin:0 auto}

.banner_img{width:20000px}
.banner_img li{float:left;width:1903px;position:relative}
.banner_img li.bgli01{ background:#2a95bb url(../images/1banner.jpg) center no-repeat;}
.banner_img li.bgli02{ background:#E8E8E8 url(../images/1banne1.jpg) center no-repeat;}
.banner_img li.bgli03{ background:#E8E8E8 url(../images/1banner2.jpg) center no-repeat;}
.banner_img li.bgli04{ background:#E8E8E8 url(../img/bo3.png) center no-repeat;}

.banner .child1{position:absolute;width:1920px;height:220px;left:0px;top:0}
.banner_common{position:relative;width:990px;margin:0 auto}
.banner_pre{position:absolute;top:50%;left:0;margin-top:180px;width:60px;height:60px;cursor:pointer;background:url(../images/banner_btn_l_24.png) no-repeat;opacity:.1;filter:alpha(opacity=50)}
.banner_next{position:absolute;top:50%;right:0;margin-top:180px;width:60px;height:60px;cursor:pointer;background:url(../images/banner_btn_r_24.png) no-repeat;opacity:.1;filter:alpha(opacity=50)}
.banner_pre:hover, .banner_next:hover{opacity:1;filter:alpha(opacity=100)}
.banner .control{width:130px;position:absolute;bottom:23px;left:50%;margin-left:-40px}
.banner .control li{float:left;margin-left:10px;width:18px;height:18px;border-radius:50%;cursor:pointer;background:#fff}
.banner .control li a{display:none}
.banner .control li.current{background:#00ffff}