@media (min-width: 1200px) and (max-width: 1600px) {
    .nav>ul>li>a{ padding: 5px 7px;}
.nav>ul>li>a::before{     content: "";
    position: absolute;
    height: 12px;
    width: 2px;
    background-color: #ffffff;
    right: -21%;
    top: 31%;}
    .top_link ul li a{ font-size: 12px;}
    .xwzx,
    .overall_child,
    .images_cen,
    .foot_cen_width{ width: 90.625%;}
    .xwzx_title p,
    .tzgg_title p,
    .ycjt_title p { font-size: 24px;}
    .more a{ font-size: 14px;}
    .more a::before{ bottom: 2.5px;}
    .xwzx_right ul li a .time{ font-size: 16px; width: 28%; font-weight: bold;}
    .xwzx_right ul li a .right_title p{ font-size: 16px; line-height: 20px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;}
    .xwzx_left{ width: 92%;}
    .left_details h3{ font-size: 16px;}
    .left_details p{ font-size: 14px; width: 55%;}
    .xwzx_left .hd{ right: 25px; bottom: 50px;}
    .xwzx_left .prev{ right: 128px; bottom: 47px;}
    .xwzx_left .next{ right: 5px; bottom: 47px;}
    .xwzx_left .hd ul li{ margin: 0 4px;}
    .left_details{ height: 176px; padding-left: 15px;}
    .left_img{ aspect-ratio: 880 / 424;}
    .xwzx_right ul li{ height: 100px;}
    .tzgg_right p,
    .list_title p{ font-size: 16px;}
    .tzgg_time span,
    .ycjt_time_child span{ font-size: 24px;}
    .ycjt_left .bd ul li div,
    .ycjt_left .bd ul li h3,
    .ycjt_left .bd ul li p{ width: 86.363%;}
    .ycjt_left .bd ul li h3{ font-size: 16px;}
    .ycjt_left .next{ right: 111.5px;}
    .ycjt_left .prev{ left: 111.5px; right: auto;}
    .lecture,
    .landscape{ width: 21.625%;}
.competition video{width: 100%;}
.competition table tbody td img:nth-child(1){width: 100%;
    height: 100%;}
.competition table tbody td img:nth-child(2){ top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%);
}
#u10u10{width:100% !important;}
#u11u11{width: 100%  !important;}
    .lecture_title{ width: 86.705%; left: 6.647%;}
    .landscape ul li{ margin-bottom: 20px;}
    .lecture_title h3{ line-height: 20px; font-size: 15px;}
    .lecture_title p{ font-size: 12px; line-height: 16px;}
    .competition_title{ height: 45px;}
    .competition_title p{ font-size: 15px; line-height: 45px;}
    .landscape_title p{ font-size: 15px; line-height: 32px;}
    .foot_logo img{ width: 100%;}   
    .location p{ font-size: 14px; line-height: 32px;}
    .friendship_link p,
    .follow_us_title p{ font-size: 18px;}
    .links_list ul li a{ font-size: 14px;}
    .QR_code ul li p{ font-size: 14px;}
    .QR_code ul li img{ margin-left: 40px; width: 100px;}
    .copyright{ font-size: 12px;}
    .foot_right{ padding-top: 76px;}
    .nav_child>ul>li>a{ font-size: 12px;}
    .nav_child{ top: 23px;}
    .list_all{ width: 1200px !important;}
  }