*{
 margin: 0;
 padding: 0
 font-size:12px;
}
 
body{
 background-color: #F5F5F5;
}
.top{
 width: 100%;
 height:27px;
 background: url(../images/top_bg.jpg)repeat-x;
 overflow: hidden;
}
.top_content{
 width: 1000px;
 margin: 0px auto;
 background-color: #FF0;
 line-height: 27px;
}
.top_content li{
 list-style-image: url(../images/li_bg.gif);
 float: right;
 width: 80px;
 line-height: 27px; 
}
.top_content a:link,.top_content a:visited
{
 color: #8E8E8E;
 text-decoration: none;
}
.top_content a:hover,.top_content a:active{
 color: #F00;
 text-decoration: none;
}
.wrap{
 width: 1000px;
 margin: 0 auto;
}
.logo{
 height: 80px;
 background-color: #FFF;
 width: 1000px;
}
.logo_left{
 width: 200px;
 height: 80px;
 float: left;
 overflow: hidden;
 background: blue;
}
.logo_right{
 width: 300px;
 float: right;
 height: 28px;
 margin: 30px;
 color: #8e8e8e;
 background: black;
}

.logo_right img{
 vertical-align: middle;
 margin-right: 10px;
}

.tel{
 font-family:"微软雅黑";
 font-size: 16px;
 color: #f00;
}

.nav{
 height: 40px;
 clear: both;
}
.nav_left{
 width:10px;
 background: url(../images/nav_left.jpg)no-repeat;
}
.nav_mid{
    width: 980px;
    background: url(../images/nav_bg.jpg)repeat-x;
}
.nav_right{
 width: 10px;
 background: url(../images/nav_right.jpg)no-repeat;
}
.nav_left,.nav_mid,.nav_right{
 float: left;
 height: 40px;
}
.nav_mid_left,.nav_mid_right{
 float: left;
}
.nav_mid_left{
 width: 680px;
}
.nav_mid_right{
 width: 300px;
}
.nav_mid_left li{
 float: left;
 list-style-type: none;
 width: 100px;
 line-height: 40px;
}
.nav_mid_left a:link,.nav_mid_left a:visited{
 text-decoration: none;
 color: #FFF;
 font-size: 16px;
 font-family: "微软雅黑"；
}
.nav_mid_left a:hover,.nav_mid_left a:active{
 text-decoration: none;
 color: #FF0;
 font-size: 16px;
 font-family: "微软雅黑"；
}

.search_text{
 width: 190px;
 height: 25px;
 margin-top: 4px;
 background: url(../images/search.jpg)no-repeat right center;
 background-color: #FFF;
 padding-right: 25px;
 border: 1px solid #FFF;
}

.ad{
 height: 310px;
 margin: 0 auto;
}