.index_focus { position: relative;  width: 100%; height:689px; margin: 0 auto; overflow: hidden; }
.index_focus .bd li { display: none; position: absolute; width: 100%; height:689px; left: 0; top: 0; }
.index_focus_post { z-index: 10;}
.index_focus .slide_nav { position: absolute; left:50%; bottom:2%; margin-left:-62px;}
.index_focus .slide_nav a { cursor:pointer; float:left; width:20px; height:8px; background:#fff; margin:0 3px; transition:0.5s; border-radius:5px; opacity: 0.6;}
.index_focus .slide_nav li:hover,.index_focus .slide_nav .on{ width:40px; height:8px; filter: alpha(opacity=80); background:#ba0000; opacity: 1;}
.index_focus_pre,.index_focus_next { display: none; position: absolute; top: 50%;  margin-top: -36px; width: 72px;
    height: 72px; text-indent: 100%; white-space: nowrap; overflow: hidden; z-index: 10; background: url(../ban/ico_sliding.png) no-repeat;
}
.index_focus_pre { left: 30px; background-position: 0 0;}
.index_focus_pre:hover { background-position: 0 -144px;}
.index_focus_next { right: 30px; background-position: 0 -72px;}
.index_focus_next:hover { background-position: 0 -216px;}