.nav_bg {
	width: 100%;
	height: 54px;
	background: #010b17
}
.nav {
list-style:none;
position: absolute;
	width: 980px;
	height: 54px;
	margin: 0 auto;
}
.nav li {
	width: 108px;
	height: 54px;
	font: 16px/54px 'microsoft yahei',Verdana, Arial;
	color: #eaf0f3;
	text-align: center;
	float: left;
	z-index: 2
}
.nav li a {
	display: block;
	width: 108px;
	height: 54px;
	font: 16px/54px 'microsoft yahei',Verdana, Arial;
	text-align: center;
	overflow: hidden;
	color: #eaf0f3;
}
.nav li dl {
	top: 54px;
	left: 0;
	width: 108px;
	display: none
}
.nav li dl a {
	width: 80px;
	height: 38px;
	margin-bottom: 1px;
	background: url(../images/nav_bg.png) 0 0 repeat;
	padding: 0 14px;
	font: 700 14px/38px 'microsoft yahei',Verdana, Arial;
	color: #fff;
	overflow: hidden;
	text-align: left;
}
.nav li.hover {
	background: url(../images/nav_hover.jpg) 0 0 repeat
}