html{margin:0;padding:0;border:0;}
body,div,span,object,iframe,h1,h2,h3,h4,p,blockquote,pre,a,address,code,b,em,img,
dl,dt,dd,ol,ul,li,fieldset,form,label,footer,
header,hgroup,nav,section
{margin:0;padding:0;border:0;}
body{background:#fff;color:#666;position:relative;font:12px/1.5 Microsoft YaHei,arial,宋体,sans-serif;vertical-align:baseline;width:100%;overflow-x:hidden;}
a{text-decoration:none;outline:none;}
a:link{color:#666;}
a:visited{color:#666;}

.nav{float: left; width: 100px; list-style-type:none; font-size: 16px; line-height: 65px; text-align: center;}
.nav:hover{float: left; width: 100px; list-style-type:none; font-size: 16px; line-height: 65px; text-align: center;}
.nav a{color: #fff;}
.nav a:hover{color: #f49f20;}

.n_nav{float: left; width: 100px; list-style-type:none; font-size: 16px; line-height: 65px; text-align: center;}
.n_nav:hover{float: left; width: 100px; list-style-type:none; font-size: 16px; line-height: 65px; text-align: center;}
.n_nav a{color: #000;}
.n_nav a:hover{color: #f49f20;}

.d_nav{list-style-type:none;}
.d_nav a{color: #fff; font-size: 16px; line-height: 44px;}