@media screen and (max-width:600px ) {
    /* 公共头部 */
    .top_inside{width:100% !important}
    .top_mid{margin:0;padding:10px 0}
    .top_link_fl a {margin: 0 5px;}
    .top_logo{float:none;text-align:center;margin-bottom:10px}
    .top_logo img{height:60px}
    .top_search{float:none !important;}
    .top_search .search{width:100%;height:auto;overflow:hidden;position:relative}
    .top_search .search span{display:flex;justify-content:center;align-items:center}
    .top_search .search span .input{margin-left:0;width:270px;margin-top:0;outline:0}
    .top_search .search span a{position:static}
    .header .header_nav{width:100%;height:auto}
    .header .header_nav dl dd{margin:0!important;float:none}
    .nav_right{display:flex;justify-content:flex-start;flex-wrap:wrap}
    .nav_right li{width:25%;text-align:center}
    .header .header_nav dl dd ul.nav_right li a.sy{padding:0}
    .header .header_nav dl dd ul.nav_right li a{padding:0!important}
    .header .header_nav dl dd.kstd_box{float:none;display:none}
    /* 公共底部 */
    .footer_box{display:none}
    .footer_bottom{background:#a5a8af;height:auto!important}
    .footer_bottom .w1200{width:100%}
    .footer_bottom .w1200 dt{display:flex;flex-wrap:wrap}
    .footer_bottom dd div {width: 100% !important;}
    .footer_bottom dd div p:last-child{display:flex;justify-content:center}
    .float-right{display:none}
}