html { overflow-x: hidden; overflow-y: auto; }
#banner{width:1920px;height:850px;margin: 0 auto 0 -960px;position:relative;left:50%;}
#banner #b4{width:650px;height:500px; margin: 0px auto 0px auto;}

.top-nav{ width:100%; height:100px; line-height:100px;position:absolute;top:0px; background:url('../images/top-bg.png') repeat-x; font-weight:500!important; font-size: 20px;}
.top-nav .logos{background:url('../images/logo1.png') no-repeat left center; width: 233px; height: 90px; padding-top: 1px; text-indent: -9999px; margin-right: 10px; float: left;}
.top-nav .logos a { display: block; text-align: center;}
.top-nav .navul{width:1268px; height:100px; margin:0 auto;position: relative; }
.top-nav .navs { width: 155px; height: 100px; line-height: 100px; float: left;}
.top-nav .navs a { font-size: 22px; color: #adb5e0;width: 170px; height: 100px; display: block; text-align: center;}
.top-nav .navs a:hover { color: #283471;background:url('../images/navbg.png') no-repeat left center;}
.top-nav .yxxz{float: right; width: 135px; height: 117px;background:url('../images/navxz.png') no-repeat left center;cursor: pointer;position: relative;z-index: 999}


#yxlb{ width: 660px; height: 260px; position: absolute; top: 99px; right: 0px;display: block;background-color: #4d6599; padding: 20px;display:none;z-index: 3 }
#yxlb #hdimg{ width: 350px; height: 260px; float: left; margin-top: 10px; }
#yxlb #hdimg img{border: 1px solid #fc885c; padding: 5px; width: 350px; height: 200px}
#yxlb .yx{width: 280px; height: 260px; float: right}
#yxlb .yx .yxli{background:url('../images/yxbg1.png') no-repeat left center; width: 270px; height:60px; line-height: 60px; text-align: center;}
#yxlb .yx .yxli:hover{background:url('../images/yxbg.png') no-repeat left center;}
#yxlb .yx .yxli a { color: #fff}