.index_focus {
    position: relative;
    width: 100%;
    overflow: hidden;
    text-align: center;
    z-index:2;
    
}
.index_focus .bd li {
    display: none;
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
}
.index_focus_post {
    z-index: 10;
}
.index_focus_pre, .index_focus_next {
    display: none;
    position: absolute;
    top: 45%;
    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;
}
.index_focus {height:600px;}
.index_focus .bd li {height:600px;}
.index_focus .slide_nav {
    position: absolute;
    left:50%;
    bottom: -63px;
    margin-left:425px;
    z-index:80;
}

.index_focus .slide_nav a { cursor:pointer; float:left; font-size:22px; font-family: arial; color: #aaa; margin:0 10px;}
.index_focus .slide_nav li:hover,.index_focus .slide_nav .on{text-decoration: none;color: #0160e0;filter: alpha(opacity=80);opacity: 0.8; border-bottom:1px #0160e0 solid; padding-bottom:5px;}

.ban_bg1{ background:url(../ban/1.jpg) center no-repeat;}
.ban_bg2{ background:url(../ban/2.jpg) center no-repeat;}
.ban_bg3{ background:url(../ban/3.jpg) center no-repeat;}
.ban_bg4{ background:url(../ban/4.jpg) center no-repeat;}