/* ================================================================ 
This copyright notice must be kept untouched in the stylesheet at 
all times.

The original version of this stylesheet and the associated (x)html
is available at http://www.stunicholls.com/menu/pro_drop_2.html
Copyright (c) 2005-2007 Stu Nicholls. All rights reserved.
This stylesheet and the associated (x)html may be modified in any 
way to fit your requirements.
=================================================================== */


#nav {padding:0; margin:0; list-style:none; height:74px; position:relative;}
#nav li.top { float:left; height:74px;}

#nav li a.top_link_special {float:left; height:74px;cursor:pointer;}
#nav li a.top_link_special span {float:left;height:74px;  width:96px; background: url(about.gif) no-repeat}
#nav li a.top_link_special span.down {float:left; height:74px; width:96px;  background: url(about.gif) no-repeat}

#nav li:hover a.top_link_special { background: url(about.gif) no-repeat;}
#nav li:hover a.top_link_special span {background:url(about2.gif) no-repeat;}
#nav li:hover a.top_link_special span.down {background:url(about.gif) no-repeat;}

#nav li a.top_link {float:left; height:74px; line-height:80px; text-decoration:none; font-size:12px; color:#ffffff;  cursor:pointer;overflow:hidden;}
#nav li a.top_link span {float:left; line-height:80px; height:74px;  width:77px; background: url(nav.gif) no-repeat; text-align:center;overflow:hidden;}
#nav li a.top_link span.down {float:left; line-height:80px; height:74px; width:77px;  background: url(nav.gif) no-repeat; text-align:center;overflow:hidden;}

#nav li:hover a.top_link {background: url(nav.gif) no-repeat;}
#nav li:hover a.top_link span {background:url(navs.gif) no-repeat;}
#nav li:hover a.top_link span.down {background:url(nav.gif) no-repeat;}

/* Default list styling */

#nav li:hover {position:relative; z-index:200;}

#nav li:hover ul.sub
{left:-3px; top:74px; background: #fff; padding:3px; border:1px solid #972928; white-space:nowrap; width:152px; height:auto; z-index:300;}
#nav li:hover ul.sub li
{display:block; height:32px; position:relative; float:left; width:90px; font-weight:normal;}
#nav li:hover ul.sub li a
{display:block; font-size:12px;  height:29px; width:150px; line-height:26px; text-indent:5px; color:#636363; text-decoration:none;}
#nav li ul.sub li a.fly
{background:url(arrow.gif) 142px 12px no-repeat;}

/*没有二级菜单的菜单选择项*/
#nav li:hover ul.sub li a:hover 
{background-image:url(menu_sel_bg.gif); color:#fff; border-color:#fff;border:1px solid #972928}

#nav li:hover ul.sub li a.fly:hover
{background:url(menu_sel_next_bg.gif); color:#fff;}

/*二级菜单*/
#nav li:hover li:hover ul,
#nav li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover ul,
#nav li:hover li:hover li:hover li:hover li:hover ul
{left:150px; top:4px; background: #fff; padding:3px; border:1px solid #972928; white-space:nowrap; width:152px; z-index:400; height:auto;}

#nav ul, 
#nav li:hover ul ul,
#nav li:hover li:hover ul ul,
#nav li:hover li:hover li:hover ul ul,
#nav li:hover li:hover li:hover li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

/*当鼠标转向二级菜单时*/
#nav li:hover li:hover a.fly,
#nav li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover a.fly,
#nav li:hover li:hover li:hover li:hover li:hover a.fly
{background:url(menu_sel_next_bg.gif) ; color:#fff; border-color:#fff;border:1px solid #972928} 

#nav li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li a.fly,
#nav li:hover li:hover li:hover li:hover li a.fly
{background:url(menu_sel_next_bg.gif); color:#000; border-color:#972928;}