@media screen and (max-width: 1200px) {
    .yussleft,.yussright{ display:none}
    .header .top { padding: 0;}
    .header .top .logo {float: left;margin-right: 50px; margin-left: 20px;}
    .header .top .word {float: right; margin-right: 40px;}
    .header .top .schools {display:none}
    .header .nav .menu_li {padding:0;width:11%}
    .header .nav .menu_a {width:100%; font-size: 14px;}
    .header .nav .menu_a:hover{ font-size: 14px;}

    .banner .arrow { display: none;}

    .banner .baoming {
        position: absolute;
        width: 293px;
        height: 302px;
        left: auto;
        right: 10px;
        top: 50%;
        z-index: 200px;
        cursor: pointer;
    }
}