.about{
	width: 100%;
	height: auto;
	overflow: hidden;
	background: #e9e9e9;

}
.about .about_z{
	width: 25%;
	height:auto;	
	float: left;
	background: #e9e9e9;
	overflow: hidden;
	padding: 3em 0;
}
.about .about_z ul{
	width: 140px;
	height: auto;
	float: right;
	padding-right: 1em;
}
.about .about_z ul li{
	line-height: 46px;
	padding: 0 1em;
	font-size: 16px;
}
.about .about_z ul li:active{
	background: #fff;
}
.about .about_z ul .l1{
	border-bottom: 1px solid #000;
}
.about .about_z ul .l2{
	border-bottom: 1px solid #999;
}
.about .about_z ul .l3{
	background: #fff;
	color: #f90;
}
.about .about_y{
	width: 75%;
	float: left;
	height: auto;
	background: #fff;
	padding-bottom: 300px;
}
.about .about_y .about_xq{
	width: 80%;
	height: auto;
	float: left;
}
.about .about_y .about_xq h3{
	padding: 2em 2.5em 0 1.3em;
	font-size: 24px;
	color: #003e73;
}
.about .about_y .about_nr{
	width: 55%;
	height: auto;
	float: left;
	overflow: hidden;
}
.about .about_y .about_nr p{
	padding: 2em 2em 0 2.2em;
	line-height: 32px;
}
.about .about_y .about_nr p span{
	font-weight: bold;
}
.about .about_y .about_img{
	width: 45%;
	height: auto;
	float: right;
	overflow: hidden;
}
.about .about_y .about_img img{
	width: 100%;
	height: auto;
	display: block;
	padding: 2.8em 0 0 0;
}
.about_db{
	width: 100%;
	height: auto;
	overflow: hidden;
}
.about_db .about_dbimg{
	width: 45%;
	height: 474px;
	float: left;
	overflow: hidden;S
}
.about_db .about_dbimg img{
	width: 100%;
	height: 474px;
	display: block;
}
.about_db .ditu{
	width: 55%;
	height: auto;
	float: right;
	overflow: hidden;
}