.index_focus {
    position: relative;
    width: 100%; max-width:1900px; min-width:1200px;
    height: 660px; background:#f8f8f8;
    margin: 0 auto;
}

.index_focus .bd li { height: 660px;}

@media only screen and (max-width: 1680px){.index_focus{height:580px;}}
@media only screen and (max-width: 1680px){.index_focus .bd li{height:580px;}}

@media only screen and (max-width: 1440px){.index_focus{height:500px;}}
@media only screen and (max-width: 1440px){.index_focus .bd li{height:500px;}}

@media only screen and (max-width: 1366px){.index_focus{height:470px;}}
@media only screen and (max-width: 1366px){.index_focus .bd li{height:470px;}}

.index_focus .slide_nav {
    position: absolute;
    left: 47%;
    bottom:5px;

}
.index_focus .slide_nav a {
	cursor:pointer;
	float:left;
    font-size:28px;
    font-family:Arial, Helvetica, sans-serif;
    color: #fff;
	padding:3px 3px;
}
.index_focus .slide_nav li:hover,.index_focus .slide_nav .on{text-decoration: none;color: #035cac;}
.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/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;
}