/* ================================================================ 
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_1.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.
=================================================================== */

.preload1 {background: url(blank_over.gif);}
.preload2 {background: url(blank_overa.gif);}

#nav { width:1100px; height:60px; margin:0 auto; list-style:none; height:36px; background:#fff; position:relative; z-index:500; font-family:'微软雅黑'}
#nav li.top { width:110px; height:60px; display:block; float:left;}
#nav li a.top_link {display:block; width:110px; float:left; height:60px; line-height:60px; color:#fff; text-decoration:none; font-size:16px; font-weight: normal; cursor:pointer; text-align:center}
#nav li a.top_link span {display:block; width:110px; height:10px; line-height:10px; font-size:10px; color:#fff; font-weight:normal; text-align:center}
#nav li a.top_link span.down {float:left; display:block; padding:0 24px 0 12px; height:36px;}
#nav li a.top_link:hover { color:#464646; background:#fff}
#nav li a.top_link:hover span {background:#fff; color:#464646}
#nav li a.top_link:hover span.down {background:url(blank_overa.gif) no-repeat right top;}

#nav li:hover > a.top_link {color:#464646; background:#fff;}
#nav li:hover > a.top_link span {color:#464646; background:#fff;}
#nav li:hover > a.top_link span.down {background:url(blank_overa.gif) no-repeat right top;}

/* Default list styling */

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

/* keep the 'next' level invisible by placing it off screen. */
#nav ul, 
#nav li:hover ul ul,
#nav li:hover ul li:hover ul ul,
#nav li:hover ul li:hover ul li:hover ul ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul ul
{position:absolute; left:-9999px; top:-9999px; width:0; height:0; margin:0; padding:0; list-style:none;}

#nav li:hover ul.sub
{left:0; top:60px; background: #464646; color:#fff; white-space:nowrap; width:110px; height:auto; z-index:300;}
#nav li:hover ul.sub li
{display:block; height:30px; position:relative; float:left; width:104px; font-weight:normal; text-align:center}
#nav li:hover ul.sub li a
{display:block; font-size:13px; height:30px; width:110px; line-height:30px; color:#fff; text-decoration:none;}
#nav li ul.sub li a.fly
{background:#fff url(arrow.gif) 80px 7px no-repeat;}
#nav li:hover ul.sub li a:hover 
{background:#b1b1b1; color:#fff;}
#nav li:hover ul.sub li a.fly:hover
{background:#3a93d2 url(arrow_over.gif) 80px 7px no-repeat; color:#fff;}

#nav li:hover ul li:hover > a.fly {background:#3a93d2 url(arrow_over.gif) 80px 7px no-repeat; color:#fff;} 

#nav li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul,
#nav li:hover ul li:hover ul li:hover ul li:hover ul li:hover ul
{left:110px; top:0px; background: #545454; padding:3px; white-space:nowrap; width:110px; z-index:400; height:auto;}