*{padding:0;margin:0;font-family:"微软雅黑";}
a{color:black;}
ul{list-style:none;}
img{vertical-align: middle;}
#contentbox{width:1170px;margin:0 auto 50px;}



#navbox{width:100%;height:50px;background:#262626;min-width:1170px;}
#nav{width:1000px;height:50px;margin:0 auto;}
#logo{width:20%;height:50px;float:left;}
#nav_ul{float:left;margin-left:11%;width:69%;height:50px;}
#nav_ul li{float:left;font-size:12px;border-left:1px solid #161616;text-align: center; height:50px;width:15%;}
#nav_ul a{color:white;text-decoration:none;display: block;width:100%;height:100%;line-height:48px;}
#underline{width:113px;height:2px;background:url(../img/underbar.png) no-repeat;position:absolute;background-position: center;margin-top:48px;}
.english{text-align:center;}
#totop{position:fixed;top:91%;right:0%;height:50px;width:50px;display:none;}

#banlist img{width:100%;height:100%;}

#bannerbox{width:100%;height:550px;position:relative;overflow: hidden;min-width:1170px;}
#banlist{
	    width:400%;height:100%;position:absolute;min-width:4680px;}
#banlist li{width:25%;height:100%;float:left;}
#banlist li img{width:100%;height:100%;}
#prev_ban{position:absolute;width:2.2%;height:21%;top:38%; }
#next_ban{position: absolute;width:2.2%;height:21%;top:38%;right:0%;}

#circle1{width:20px;height:10px;position:absolute;top:91%;left:49%;}
#circle2{width:20px;height:10px;position: absolute;top:91%;left:51%;}