/*topnav*/
#mainnva{text-align:center;}
#mainnva .td{padding:0px 25px 0px 20px;}
#mainnva .line{background-image:url(../index/mainmenu2.gif); background-repeat:no-repeat; background-position:right; }
#mainnva a{
    color: #FFFFFF;
	text-decoration: none;
	letter-spacing:1px;
	font-size:14px;
	font-weight:bold;
	height:36px;
	padding:10px 5px 8px 5px;
	 font-family:Arial, Helvetica, sans-serif;
	}
#mainnva a:hover{ color:#FFFF00;}/*经过背景色*/

.sub_nav{ background-color:#A4AFCB; width:880px; margin:auto; z-index:10000;position:absolute;}

a.sub_nav_link{display:block; clear:both; height:24px; line-height:24px; color:#FFF; text-align:left; padding-left:5px; font-family:Arial, Helvetica, sans-serif; letter-spacing:1px;}
a.sub_nav_link:hover{color:#333333; background-color:#FFFFFF;}

.sub_nav .sub_nav_about_link_hide{visibility:hidden;position:absolute;top:8px !important; top:0px; width:140px; left:129px; float:left; background-color:#990100; padding:0px 8px 6px 8px; font-weight:bold;}
.sub_nav .sub_nav_news_link_hide{visibility:hidden;position:absolute; top:8px !important; top:0px; width:140px; left:250px; float:left; background-color:#990100; padding:0px 8px 6px 8px; font-weight:bold;}
.sub_nav .sub_nav_products_link_hide{visibility:hidden;position:absolute; top:8px !important; top:0px; width:240px; left:345px; float:left; background-color:#990100; padding:0px 8px 6px 8px; font-weight:bold;}