body{min-width:1200px;font-family:"MicroSoft YaHei"}dd,dl,dt,h1,h2,h3,li,p,ul{margin:0;padding:0}h1,h2,h3{font-weight:400}a,span{display:inline-block}a,img,span{vertical-align:top}em{font-style:normal}.fl{float:left}.fr{float:right}li{list-style-type:none}a:hover{text-decoration:none}.clearfix{zoom:1}.clearfix:after{content:".";display:block;height:0;visibility:hidden;clear:both}.wrap{background:url(pc.png) no-repeat center top;height:7508px}.wrap_box{padding-top:1490px}.join_box{display:block;text-align:center;height:115px}.main{width:1200px;margin:0 auto}.main_nav{margin:120px 0 22px}.main_nav .box{padding-top:15px;height:92px}.main_nav .box.index{background:url(nav_status1.png) no-repeat center top}.main_nav .box.collect{background:url(nav_status2.png) no-repeat center top}.main_nav .box .main{width:840px;padding:0 0 0 160px}.main_nav .box .main a{float:left;width:140px;height:35px;margin-right:128px;position:relative}.main_nav .box .main a.collect.no_start:after{content:'';position:absolute;width:109px;height:34px;background:url(nav_tip.png) no-repeat;right:-95px;top:-30px}