.daoyu-title {
    font-size: 17px;
    letter-spacing: 0px;
    line-height: 35px;
    text-align: left;
    margin-top: 20px;
}
 .kaixue-list-top-fl {
     float: left;
     width: 800px;
     height: 480px;
 }
.kaixue-list-top-fl img{
    width: 100%;
    height: 100%;
}
 .kaixue-list-top-fr {
     width: 396px;
     height: 480px;
     float: right;
 }
 .kaixue-list-top-fri img{
     width: 100%;
     height: 100%;
 }
 .kaixue-list-top-fri {
     width: 396px;
     height: 238px;
 }
 .kaixue-list-top-fri {
     width: 396px;
     height: 238px;
 }
 .kaixue-list-bottom li {
     margin: 4px 4px 0 0;
     width: 396px;
     height: 238px;
     float: left;
 }
 .kaixue-list-bottom li img {
     width: 100%;
     height: 100%;
 }
.zy_ban1{

    width: 100%;
    height: 620px;
    background: url(../images/zhlx_banner.jpg) center center no-repeat;

}