*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;text-decoration:none;}
body{font:12px/180% Arial, Helvetica, sans-serif, "ÐÂËÎÌå";}
.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden}
.clearfix{display:inline-table}
*html .clearfix{height:1%}
.clearfix{display:block}
*+html .clearfix{min-height:1%}
/* nav_menu */
.nav_menu{width:690px;height:500px; background:url(pro1.jpg) no-repeat 0 0;}
.nav{width:690px;height:500px;background:url(pro1.jpg) no-repeat 0 0;position:relative;}
.nav .list li{float:left;}
.nav .list a{float:left;display:block;width:30px;height:30px; cursor:pointer;}
.nav .list a:hover{color:#FFA304;}
.nav .list a:hover,.nav .list .now{color:#F00;}
.nav .box{position:absolute;left:0px;top:0px;overflow:hidden;}
.nav .cont{position:relative;}