.nav{width:100%; height:58px;position:relative; z-index:99999;}
.nav>ul{width:1200px; height:58px; line-height:58px;margin:0 auto;position:relative;}
.nav li{width:133px; height:58px; display:block; float:left;}
.nav li>a{width:100%; height:58px;display:block;float:left; text-align:center; color:#666666; border-right:#d6d6d6 solid 1px;}
.nav li>a:hover{background:url(img/navah.jpg) repeat-x left;color:#FFF;}
.nav li>a:hover,.nav li>a.on{background:url(img/navah.jpg) repeat-x left;color:#FFF;}

.topNav{width:100%; height:58px;position:relative; z-index:99999;}
.navMain{width:1200px; height:58px; line-height:58px;margin:0 auto;position:relative;}
.nav1{width:133px; height:auto;background:url(img/prolbg.png) no-repeat 10px 0px;}

.navSub{width:1920px; height: 187px; display: none; overflow: hidden; position:absolute; top:58px; left:-360px; background-color:rgba(0,40,130,0.35);} 
.navSub ul{ width:1200px; height:auto; overflow:hidden; margin:0 auto; padding-top:10px;}
.navSub a{ width: 133px;height:35px;color: #fff; display: block; text-indent:31px;} 
.navSub a:hover{ text-decoration:underline; font-weight:bold;} 
.navSub dl{width: 133px; float: left;line-height:46px; position: relative;} 
.navSub dt{position: absolute; width: 100%; height: 100%; left: 0; top: 0; text-indent: -5000px; background-position: -1120px 0; display: none;} 
.navSub dd{position: relative;}
.nav2{margin-left:133px; width:133px; height:auto;background:url(img/prolbg.png) no-repeat 10px 0px;}