.nav
{
 height:51px;
 background:url(../images/navbg.jpg) repeat-x;
 font-family:"微软雅黑";}
#daohang{width:1020px;height:51px; margin:0 auto;position:relative;z-index:99; line-height:51px;}
.home{margin-left:16px;}
.tab{position:relative;display:block;float:left;cursor:pointer;background:url(../images/navbg1.jpg) no-repeat right 8px;}
.tab .tablink{position:relative;padding:1px 21px;line-height:49px;display:block;height:49px;color:#fff;font-size:14px;z-index:99;float:left; font-weight:bold;}
.tab .tablink a{line-height:30px;color:#FFF;text-decoration:none;}
.tab:hover{background-color:#19a6fd;}
.tab:hover .tablink{color:#fff;border:1px solid #05599d;padding:0 20px;text-decoration:none;}
.tab:hover .tablink a{color:#fff;}
.dropdown:hover .arwlink{border-bottom:1px solid #19a6fd;border-left:1px solid #05599d;height:31px;}
.dropdown ul{display:none;}
.dropdown:hover ul{position:absolute;display:block;margin-left:-1px;top:32px;left:1px;z-index:9;}
.subnav{width:250px;}
.subnav a{padding:4px 0 4px 10px;line-height:16px;width:70px;display:block;white-space:nowrap;color:#fff;float:left;}
.subnav :hover{text-decoration:underline;color:#fff;}
.dropdown .subnav{background-color:#19a6fd;border:1px solid #05599d;padding:8px;}

.lasttab
{
 background:none;}