/*banner*/
.index_default .banner_box{ width:1100px; margin:0 auto; height:auto;}
.www51buycom { width:100%; height:400px;position:relative; overflow:hidden;}

.www51buycom ul li img{ width:100%;}
.www51buycom .num { width:300px;overflow:hidden; height: 30px; position: absolute; bottom:12px; right:50%; margin-right:-150px;  zoom:1; z-index:3; text-align:center; }
.www51buycom .num li { width:auto; height: auto; background: none; border:2px solid #bababa; margin:0 5px; padding:2px; border-radius:50%; cursor:pointer; display:inline-block;}
.www51buycom .num li a{ display:inline-block; width:10px; height:10px; border-radius:50%; background:#fff;}
.www51buycom .num li.on { border-color:#fff;} /*µ±Ç°Ïî*/
.www51buycom .num li.on a{background:#bababa;}
.www51buycom .prev,
.www51buycom .next {background:url(../images/bannerbtn.png) no-repeat;width: 56px;height: 56px; position: absolute; top:50%; margin-top:-28x; display:block; }
.www51buycom .prev { left: 0px; }
.www51buycom .next { right: 0px; background-position: right 0; }