.top
{
    max-width:1920px;
    width:100%;
    margin:0 auto;
    background-color:#183285;
}
.top_wrapper
{
    width:960px;
    height:97px;
    margin:0 auto;
    font-size:15px;
	font-family:Arial,"微软雅黑";
	color: #fff;
	font-weight:bold;
	letter-spacing:1px;
}
.top_logo
{
    float:left;
    width:158px;
    height:74px;
    padding-top:23px;
    background-color:#fff;
    text-align:center;
}
.top_nav
{
    float:left;
}
.top_nav ul
{
    width:799px;
    height:97px;
    line-height:97px;
    margin-left:3px;
}
.top_nav ul li
{
    float:left;
    width:104px;
    margin:0 3px;
    text-align:center;
}
.top_nav ul li a
{
    display:block;
    width:100%;
    height:100%;
    text-decoration:none;
    color:#fff;
}
.top_nav ul li a:hover
{
    background: url('../images/yw_index_bgnav.jpg') no-repeat;
}
.navActive
{
    display:block;
    width:100%;
    height:100%;
    background: url('../images/yw_index_bgnav.jpg') no-repeat;
}