/**************************顶部第一行广告7个************************************/
.adv_content{
    width: 1000px;
    margin: 10px auto 8px;
    height: 60px;
}
.adv_list{
    overflow: hidden;
}
.adv_list .adv_w570{
    float: left;
    width: 570px;
    height: 60px;
    margin-left: 12px;
}
.adv_list .adv_w570 img{
    width: 570px;
    height: 60px;
    border: none;
}
.adv_list .adv_w400{
    float: left;
    width: 400px;
    height: 60px;
    margin-left: 12px;
}
.adv_list .adv_w400 img{
    width: 400px;
    height: 60px;
    border: none;
}



.section_nav {
height: 110px;/*200 改为 110 zhangqt*/
}
.adv_content {
    margin: 20px auto 30px;
}
.section_main_nav {
    border-top: none;
    border-bottom: solid 3px #C3382A;
}