/*banner*/
.index_default .banner_box{ width:100%; margin:0 auto; height:auto; float:none;}
.www51buycom { width:100%; height:auto;position:relative; overflow:hidden;}

.www51buycom ul li img{ width:100%;}
.www51buycom .num { width:300px;overflow:hidden; height: 25px; position: absolute; bottom:12px; right:50%; margin-right:-150px;  zoom:1; z-index:3; text-align:center; }
.www51buycom .num li { width:12px; height: 12px; margin:0 5px; cursor:pointer; display:inline-block; background:#CCC; border-radius:50%;}
.www51buycom .num li.on { background: #a961a0;} /*µ±Ç°Ïî*/

.www51buycom .prev,
.www51buycom .next {width: 56px;height: 56px; position: absolute; top:50%; margin-top:-28x; display:block; font-size:40px; color:#000; border-radius:50%; background:rgba(255,255,255,0.7); line-height:56px; text-align:center; font-weight:bold;}
.www51buycom .prev { left: 10px; }
.www51buycom .next { right: 10px;}