.content_header{
	width: 100%;
	height: 79px;
	background-color: #fff;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 100;
	box-shadow: 0 0 13px #E0E0E0;
}
.content_header .header_inner{
	height: 100%;
}
.content_header .header_left{
	width: 239px;
	height: 100%;
	float: left;
	text-align: center;
	line-height: 79px;
}
.content_header .header_right{
	float: right;
}
.content_header .header_right .nav_item{
	float: left;
    position: relative;
    border-bottom: 4px solid #fff;
}
.content_header .header_right .nav_item:hover {
    border-bottom: 4px solid #003264;
    background-color: #003264;
}
.content_header .header_right .nav_item:hover a {
    color: #fff;
}
.content_header .header_right .nav_item>a{
	display: block;
	height: 75px;
	padding: 0 15px;
	color: #84888C;
	line-height: 79px;
	text-align: center;
}
.content_header .header_right .nav_item.active {
    border-bottom: 4px solid #003264;
}

.content_header .header_about{
	height: 63px;
	background-color: rgba(0,0,0,0.3);
	position: absolute;
	left: 0;
	top: 79px;
	display: none;
}
.content_header .header_about .two_list{
	float: left;
}
.content_header .header_about .two_list>a{
	padding: 0 15px;
	text-align: center;
	line-height: 63px;
	color: white;
	display: block;
}
.content_header .header_about .two_list>a:hover{
	color: #7FCDFF;
}