.content-wrap{
    position: relative;
    background:url('/zt/jk2024/img/class_top.png') center top no-repeat,
    url('/zt/jk2024/img/class_bottom.png') center bottom no-repeat;
    background-size:1232px auto;
    }
.line-wrap{
    position: absolute;center;top:127px;bottom:75px;z-index:-1;
    width:100%;
    background:url('/zt/jk2024/img/class_bg.png') center top repeat-y;
    background-size:1232px auto;
    }
.content-wrap-lb{
    position: relative;
    background:url('/zt/jk2024/img/news_top.png') center top no-repeat,
    url('/zt/jk2024/img/news_bottom.png') center bottom no-repeat;
    background-size:1470px auto;
    }
.line-wrap-lb{
    position: absolute;center;top:110px;bottom:75px;z-index:-1;
    width:100%;
    background:url('/zt/jk2024/img/news_bg.png') center top repeat-y;
    background-size:1470px auto;
    }