/*banner*/
.banner_index{height:420px;position: relative;overflow:hidden;width: 990px;}
.banner_index .btn,.banner_pro .bBtn{position: absolute;top:196px;width: 56px;height: 78px;display: block;z-index: 3;}
.banner_index .btnPre,.banner_pro .bPre{background: url(../images/bg_btnPre_index.png) no-repeat 0 0;left:20px;}
.banner_index .btnPre:hover,.banner_pro .bPre:hover{background: url(../images/bg_btnPre_index_hover.png) no-repeat 0 0;}
.banner_index .btnNext,.banner_pro .bNext{background: url(../images/bg_btnNext_index.png) no-repeat 0 0;right: 20px;}
.banner_index .btnNext:hover,.banner_pro .bNext:hover{background: url(../images/bg_btnNext_index_hover.png) no-repeat 0 0;}
.banner_index .banner_wrap{position: absolute;left:0px;top: 0px; z-index: 2;}
.banner_index .banner_wrap li{width: 990px;float: left;}