.about_us{width:100%; height:538px; background:url(../images/about-us.png) no-repeat center;}
.aboutBox{
	height: 538px;
	overflow: hidden;
	margin: 0px auto;
	width: 1100px;
}
.aboutBox>h3{ text-align: center;  margin-top: 55px;}
.about_us_tup{ width:440px; height:280px; margin-top:40px; float:left; padding:8px; background:#FFF; position: relative;}
.about_us_tup img{ width:440px; height:280px; }
.about_us_tup .about_us_bg{ position:absolute; right:20px; bottom:20px;}
.about_us_tup .about_us_bg span{ display: block; width:10px; height:10px; margin-right:5px;  background:#7d7d7d; float:left;}
.about_us_tup .about_us_bg span.cur{ width:18px; background:#f18525;}
.about_us_nr{
	width: 580px;
	height: 300px;
	margin-top: 40px;
	color: #FFF;
	float: right;
}
.about_us_nr h3 {font-weight:normal;padding-bottom:20px; margin-top:20px; border-bottom:1px solid #fff; background:url(../images/whitejx.png) no-repeat left bottom;}
.about_us_nr h3>a{
	color: #FFF;
	font-size: 20px;
	font-weight: bold;
}
.about_us_nr div.about_us_txt{
	font-size: 14px;
	padding-top: 10px;
	line-height: 24px;
	height: 120px;
	overflow: hidden;
}
.about_us_nr .ljxq{display:block; width:123px; height:45px;color:#FFF;margin-top:35px;  text-align: center;  font-size: 14px;line-height: 45px; background:url(../images/more_kuang.png) no-repeat;}
.about_us_nr .ljxq a:hover{ text-decoration:none;}