/* 全局CSS定义 */
body{margin:0 auto;padding:0;background:#FFF;color:#333;font:12px '宋体';text-align:center;}
body > div{margin-right:auto;margin-left:auto;text-align:center; } 
div,form,ul,ol,li,span,p,dl,dt,dd,img{margin:0;padding:0;border:0;}
h1,h2,h3,h4,h5,h6{margin:0;padding:0;font-size:12px;font-weight:normal;}
ul,ol,li{list-style:none}
table,td,input,textarea{font-size:12px}
/* 链接颜色 */
a{color:#333;text-decoration:none;}
a:hover{color:#db0010;text-decoration:underline;}

.nl,.nl a,.nl a:hover,a.nl,a.nl:hover{text-decoration: none;}
.ul,.ul a,.ul a:hover,a.ul,a.ul:hover{text-decoration: underline;}

/* 标题 */
h2{text-align:right;}
h2 span{float:left;font-weight: bold;font-size:14px}

.clear,.area,.pp,.pt{zoom:1}
.dis{display:block;}
.undis{display:none;}
.pp,.pt,.list12 ul,.list14 ul,.area{width:100%;margin:0 auto;}
.pp:after,.pt:after,.area:after,.clear:after{content:".";display:block;visibility:hidden;height:0;clear:both;}
.pp{text-align:center;}
.pp img{display:block;margin:0 auto;}	/*组图内图片属性*/
.pp span{display:block;}
.pt{color:#333;line-height:20px;text-align:left;}
.pt div{float:left;margin:0 10px 0 0;}			/*图文混排*/
.pt p{clear:none}
.hand{cursor:pointer;}

.list12 li{text-align:left;font-size:12px;line-height:22px;}
.list14 li{text-align:left;font-size:14px;line-height:26px;}

.left,.center{display:inline;float:left;}
.right{float:right;}

/* CSS空白 */
.box_hr4,.box_hr5,.box_hr6,.box_hr8,.box_hr10,.box_hr11,.box_hr12{margin:0 auto;font-size:0;line-height:0; background:#fff;clear:both;}
.box_hr4{height:4px;}
.box_hr5{height:5px;}
.box_hr6{height:6px;}
.box_hr8{height:8px;}
.box_hr10{height:10px;}
.box_hr11{height:10px;}
.box_hr12{height:12px;}

.text_l{text-align:left}
.text_r{text-align:right}
.text_c{text-align:center}

.float_l{float:left;}
.float_r{float:right;}

.text_ind{text-indent:2em;}
.font_z_14{font-size:14px;}
.font_w_n{font-weight:normal;}
.font_w_b{font-weight:bold;}
.lineh24{line-height:24px;}

.color_000,.color_000 a{ color:#000}
.color_000 a:hover{color:#db0010}
.color_2344,.color_2344 a{ color:#23447B}
.color_2344 a:hover{color:#db0010}
.color_333{color:#333}
.color_94A3{color:#94A3AB}
.color_CC66{color:#CC6600}
.color_94A1 td{color:#94A1AA;line-height:20px;}
.color_888{color:#888}

/*虚线*/
.line01,.line02,.line03,.line04,.line05,.line06{height:1px;background-image:url(http://mat1.qq.com/auto/index09img/tu6.png);overflow:hidden;line-height:1px;font-size:1px;}
.line01{width:335px;margin:8px auto 10px;background-position:0px -62px;}
.line02{width:226px;margin:0px auto 0px;background-position:0px -65px;}
.line03{width:292px;margin:0px auto 0px;background-position:0px -72px;}
.line04{width:321px;margin:0px auto 0px;background-position:0px -69px;}
.line05{width:245px;margin:0px auto 0px;background-position:0px -76px;}
.line06{width:289px;margin:5px auto 1px;background-position:0px -82px;}


.mart2{margin-top:2px}
.marb13{margin-bottom:13px;}
.marb8{margin-bottom:8px;}
.marb9{margin-bottom:9px;}
.mart8{margin-top:8px;}
.mart20{margin:20px auto 0px}
.mart9{margin-top:9px;}
.mart11{margin-top:11px;}
.mart13{margin-top:13px;}

/*菜单样式开始*/
.header_nav{
	width:960px; 
	margin:auto;
	background:#FFFFFF;
	border:5px solid #FFF;
	border-bottom:2px solid #FFF;
}
.global_nav {
	background: url(../img/nav_bg.gif) repeat-x;
	clear: left;
	height: 55px;
	margin: 0px auto;
	padding: 0px;
}
.nav_left {
	background: url(../img/nav_lr.gif) no-repeat 0px 0px ;
	width: 2px;
	float:left;
	height:28px;
	margin-top:-3px;
}
.nav_right {
	background: url(../img/nav_lr.gif) no-repeat -1px 0px;
	float: right;
	height: 28px;
	width: 2px;
	margin-top:-3px;
}
.msl {
	height: 20px;
	padding: 9px 15px 0px 10px;
	text-align: left;
}
.f_gray, a.f_gray:link, a.f_gray:visited {
	color: #4F544D;
}
.nav_current {
	background: url(../img/nav_button.gif) no-repeat 0px -58px;
	display: block;
	float: left;
	font-size: 14px;
	font-weight: bold;
	height: 21px;
	padding-top: 8px;
	text-decoration: none;
	width: 92px;
}
a.f_nav:link {
	color: #333333;
	display: block;
	height: 14px;
	text-decoration: none;
}

a.f_nav:visited {
	color: #333333;
}

a.f_nav:hover {
	color: #000000;
	display: block;
	padding-top: 1px;
	text-decoration: none;
}
.nav_link {
	background: url(../img/nav_button.gif) no-repeat;
	cursor:pointer;
	float: left;
	font-size: 13px;
	height: 21px;
	padding-top: 8px;
	text-decoration: none;
	width: 92px;
}
.nav_sub {
	height: 21px;
	text-align: left;
	line-height:21px;
}

.nav_sub a {
	color: #000000;
	text-decoration: none;
}

.nav_sub li {
	display:inline;
	height: 16px;
	margin: 0px;
	padding: 7px 12px 3px 0px;
	list-style:none;
}
.global_nav .nav_sjgg {
	float: left;
	height: 20px;
	margin-top: 3px;
	padding-left:10px;
}
.hidden, .undis {
	display: none;
}
.sub_box {
	float: right;
	height: 26px;
	text-align: left;
	width: 750px;
	padding-top:2px;
}
.f_green, a.f_green:link, a.f_green:visited {
	color: #008000;
}
.nav_main {
	height: 29px;
	width: 750px;
}
.nav_main li {
	float: left;
	text-align: center;
	list-style:none;
}/*菜单样式结束*/
<!-- 菜单开始 -->