.index_focus { position: relative; width: 100%; margin: 60px auto 0; overflow: hidden; text-align: center; z-index: 99; }
.index_focus .bd li { display: none; position: absolute; width: 100%; left: 0; top: 0;}
.index_focus .bd li a{ display:block; width: 100%; height:760px;}
.index_focus_post { z-index: 10;}
.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(../images/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 .slide_nav { position: absolute; left: 45%; bottom:2%; }
.index_focus .slide_nav a { cursor:pointer; float:left; font-size:28px; font-family: arial; color: #999; padding:5px;}
.index_focus .slide_nav li:hover,.index_focus .slide_nav .on{text-decoration: none;color: #ff0000;filter: alpha(opacity=80);opacity: 0.8;}

@media screen and (min-width:1680px) and (max-width:1920px){
.index_focus{ height:760px;}
.index_focus .bd li{ height:760px; background-size:100%;}
.index_focus .bd li a{ height:760px;}
}
/*@media screen and (min-width:1440px) and (max-width:1679px){
.index_focus{ height:550px;}
.index_focus .bd li{ height:550px; background-size:100%;}
.index_focus .bd li a{ height:550px;}
}
@media screen and (max-width:1439px){
.index_focus{ height:510px;}
.index_focus .bd li{ height:510px;}
.index_focus .bd li a{ height:510px;}
}*/