html,body{margin:0;padding:0; font-size:12px; color:#313131;}
h1,h2,h3,h4,h5,ul,p,form{margin:0;padding:0; list-style:none;}
.gray{color:#a9a9a9;}
a img{ border:none;}
a:link{text-decoration:none;color:#1d1d1d;}
.mainnav a:visited{color:#000000!important;text-decoration:none;}
.mainnav a:hover{color:#000000!important; text-decoration:underline;}
.mainnav a:active{color:#000000!important;}
.clear{ clear:both;}
.float_l{ float:left;}
.float_l a:visited{color:#1d1d1d; text-decoration:none;}
.float_l a:hover{color:#5b5b5b; text-decoration:none;}
.float_r{ float:right;}
.grey{ color:#999;}
i{ font-style:normal;}

.mainnav{border:#d1d1d1 solid 1px;border-top:#336699 solid 4px;background:#FFF url(http://s1.techweb.com.cn/static/images/menu.png) repeat-x left bottom; height:59px; overflow:hidden; width:948px;margin:0 auto;-khtml-box-shadow:rgba(0,0,0,0.1) 0 1px 2px;-ms-box-shadow:rgba(0,0,0,0.1) 0 1px 2px; -o-box-shadow:rgba(0,0,0,0.1) 0 1px 2px; -moz-box-shadow:rgba(0,0,0,0.1) 0 1px 2px;-webkit-box-shadow:rgba(0,0,0,0.1) 0 1px 2px; box-shadow:rgba(0,0,0,0.1) 0 1px 2px;font-family:Arial,\5b8b\4f53;line-height:26px;}
.mainnav ul{overflow:hidden; height:28px;}
.mainnav ul li{float:left; background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat right -191px;}
.mainnav ul li a{color:#353535; width:46px;display:inline-block; text-align:center;}
.mainnav ul li a:hover,.mainnav ul li a.on{background:url(http://s1.techweb.com.cn/static/images/menu.png) no-repeat 18px 21px; text-decoration:none;font-weight:bold;}
.gohome{float:left;width:70px;background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat scroll right -241px;}
.gohome a{display:block;height:46px;font-family:Arial,\5FAE\8F6F\96C5\9ED1;font-size:16px;width:70px;text-align:center;line-height:18px;padding-top:13px;}
.gohome span{display:block;font-size:10px;color:#9a9a9a;}
.gohome a:hover,.gohome a.on{background:url(http://s1.techweb.com.cn/static/images/menu.png) no-repeat 29px 52px;text-decoration:none;font-weight:bold; color:#000;}
.gohome a:hover span,.gohome a.on span{ font-weight:normal;}
.mainnav_l{ padding-top:3px;*padding-top:4px;width:446px;float:left; padding-left:18px; background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat right -241px;}
.mainnav_c{padding-top:3px;*padding-top:4px;width:262px;float:left;padding-left:18px;background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat right -241px;}
.mainnav_r{padding-top:3px;*padding-top:4px;width:77px;float:left;padding-left:54px;background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat 18px -115px;}
.mainnav ul li span{font-family:Arial,\5FAE\8F6F\96C5\9ED1; font-size:16px; padding-left:24px;*font-weight:bold;*font-size:14px; display:inline-block;}
.nav_news{background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat 0 6px;}
.nav_mobile{background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat 0 -27px;}
.nav_discuss{background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat 0 -56px;}
.nav_active{background:url(http://s1.techweb.com.cn/static/images/menu_icon.png) no-repeat 0 -86px;}
.mainnav .mainnav_r li{background:none;}
.mainnav ul li span a:hover,.mainnav ul li span a.on{background:url(http://s1.techweb.com.cn/static/images/menu.png) no-repeat 12px  21px; text-decoration:none;font-weight:bold;}
.mainnav_r ul li a:hover,.mainnav_r ul li a.on{ background:url(http://s1.techweb.com.cn/static/images/menu.png) no-repeat 27px  21px; text-decoration:none; font-weight:bold;}
.mainnav ul li span a{ text-align:left;}
.mainnav .mainnav_r a{ width:70px; text-align:left;}
.mainnav ul li span{display: inline-block;width:46px;}

.footer{margin:0 auto;text-align:center;padding:0;margin-top:10px;width:950px;background-color:#f3f3f3;color:#7a7a7a;}
.footer_nav{height:30px;line-height:30px;color:#b9b9b9;background:#eeeeee;background:-webkit-gradient(linear, left top, left bottom, from(#f1f1f1), to(#e0e0e0));background:-moz-linear-gradient(top,#f1f1f1,#e0e0e0);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#f1f1f1', endColorstr='#e0e0e0');}
.footer a{padding:0 5px;}
.footer a:link{text-decoration:none;color:#7a7a7a;}
.footer a:visited{color:#7a7a7a;text-decoration:none;}
.footer a:hover{color:#7a7a7a; text-decoration:underline;}
.footer a:active{color:#7a7a7a;}