/* mainbanner */
.mainbanner{height:500px;overflow:hidden; position:relative;margin-top:0px;}
.mainbanner_window{left:50%;width:1920px;height:500px;overflow:hidden;margin-left:-960px;position:absolute;}
.mainbanner_window ul{width:999999px;height:500px;position:relative;margin:0;padding:0; }
.mainbanner_window li{width:1920px;height:500px;text-align:center;font-size:0px;float:left;display:inline;}

.mainbanner_list{left:50%;top:450px;width:500px;height:35px;margin-left:-75px;position:absolute;}
.mainbanner_list li{width:35px;height:35px;overflow:hidden;float:left;display:inline;}
.mainbanner_list a{background:url("../images/yuan.png") no-repeat;width:25px;height:25px;line-height:25px;overflow:hidden;text-align:center;color:#ffffff;font-size:14px;font-weight:700;float:left;display:inline-block;}
.mainbanner_list li.active a{background-position:0 -30px;text-decoration:none;}
.mainbanner_list li a:hover{background-position:0 -30px;text-decoration:none;}