@media screen and (max-width: 500px) {
    #NAN {
        width: 100%;
        height: 87px !important;
    }

    .publicHeader {
        height: 87px;
    }

    .middle_content_wrap {
        /*margin-top: 87px;*/

    }

    .publicHeader .fheader .company_logo {
        /* padding-top: 20px; */
        margin: 0 44px 0 56px;
        /* height: 56px; */
        overflow: hidden;
        /* padding-top: 28px; */
        height: 44px;
        line-height: 44px;
        box-sizing: content-box;
    }

    .content_wrap {
        position: relative;
        width: 100% !important;
    }

    .middle_nav {
        overflow-x: auto;
        height: 34px;
        background: #fff;
        width: 100%;
    }
    .blueHeader .middle_nav{
        background: unset;
    }
    .personal_info {
        position: fixed;
        top: 0;
        right: 0;
    }

    .publicHeader .fheader .middle_nav li {
        float: left;
        /* padding: 0 25px; */
        height: 34px !important;
        line-height: 34px !important;
        text-align: center;
        font: bold 14px/34px "Helvetica Neue", Helvetica, Arial, sans-serif !important;
        margin-left: 0.0rem !important;
    }

        .publicHeader .fheader .middle_nav li.coursePage:hover {
            background: url(../Images/broadcastlive_blue_03.png) 68px 10px no-repeat;
        }
        .publicHeader .fheader .middle_nav li.coursePage {
            background: url(../images/broadcastlive_14.png) 68px 10px no-repeat;
        }

        .publicHeader .fheader .middle_nav li > a, .publicHeader .fheader .middle_nav li > a > span {
            height: 34px;
            font: normal 14px/34px "Helvetica Neue", Helvetica, Arial, sans-serif;
        }

    .publicHeader .fheader .personal_info li {
        float: right;
        padding-left: 0.1rem;
        width: 2.5rem;
        height: 44px;
        margin-right: 0.19rem;
        line-height: 44px;
        font-size: 14px;
    }
    .publicHeader .fheader .personal_info .socoton {
        width:auto !important;
    }
    .publicHeader .fheader .personal_info .login_area {
        width: 1.5rem;
    }

        .publicHeader .fheader .personal_info li a, .publicHeader .fheader .personal_info li a span, .publicHeader .fheader .personal_info .login_area sopan {
            font: 14px/44px "Helvetica Neue", Helvetica, Arial, sans-serif;
            color: #666;
        }

    .personal_img {
        width: 2.5rem;
    }

    .publicHeader .fheader .personal_info .personal_img img {
        width: 0.4rem;
        height: 0.4rem;
        /* vertical-align: middle; */
        margin-right: 0.05rem;
        border-radius: 50%;
        float: left;
        margin-top: 0.25rem;
    }

    .publicHeader .fheader .personal_info .personal_img .self_nav_wrap {
        top: 40px;
        width: 2rem;
    }

        .publicHeader .fheader .personal_info .personal_img .self_nav_wrap a {
            font-size: 14px;
        }

    .publicHeader .fheader .personal_info .APP_wrap {
        background: url(/images/header_phone_block_03.png) no-repeat 0 0.34rem;
    }

    .publicHeader .fheader .personal_info .personal_img > a > span {
        width: 2rem;
        line-height: 42px;
    }

    .webNavWrap {
        width: 100%;
        display: flex;
        height: 34px;
        /*justify-content: space-between;*/
        white-space: nowrap;
    }

    .publicHeader .fheader {
        height: 87px;
    }
    #NAV {
        height: 87px !important
    }

    .publicHeader .fheader .middle_nav li.videoPage {
        float: left;
        height: 34px;
        text-align: center;
        font: bold 14px/34px "Helvetica Neue", Helvetica, Arial, sans-serif;
        margin-left: 0rem;
        /*background: url(../images/broadcastlive_14.png) 0.72rem 0.36rem no-repeat;*/
        padding-right: 0.2rem;
    }

        .publicHeader .fheader .middle_nav li.thematicPage {
            float: left;
            height: 34px;
            text-align: center;
            font: bold 14px/34px "Helvetica Neue", Helvetica, Arial, sans-serif;
            margin-left: 0rem;
            background: url(../images/broadcastlive_14.png) 0.7rem 0.2rem no-repeat;
            padding-right: 20px;
        }

            .publicHeader .fheader .middle_nav li.thematicPage:hover {
                background: url(../Images/broadcastlive_blue_03.png) 0.7rem 0.2rem no-repeat;
                margin-left: 0rem;
            }
        .publicHeader .fheader .middle_nav li.thematicPage11 {
            float: left;
            height: 34px;
            text-align: center;
            font: bold 14px/34px "Helvetica Neue", Helvetica, Arial, sans-serif;
            margin-left: 0rem;
            background: url(../images/broadcastlive_14.png) 0.7rem 0.2rem no-repeat;
            padding-right: 20px;
            margin-left: 0rem;
        }

        .publicHeader .fheader .middle_nav li.acthematicPage {
            background: url(../Images/broadcastlive_blue_03.png) 0.6rem 0.3rem no-repeat;
        }

        .publicHeader .fheader .middle_nav li .thematicSecond_nav, .publicHeader .fheader .middle_nav li .classroomSecond_nav {
            background: #fff;
            width: 108%;
            position: absolute;
            z-index: 1000;
            left: 0;
            top: 83px;
        }

    .personal_space .second_nav {
        left: 2px;
        line-height: 0;
        display: none;
        background: #fff;
        /* border-radius: 5px; */
        width: 100%;
        position: absolute;
        z-index: 1000;
        margin-left: -10px;
        margin-top: 0;
    }

    .publicFootInfo {
        padding: 0.2rem 0;
        margin: 0 auto;
        width: 6.5rem;
    }

    .publicFootAbout img {
        width: 100%;
        height: 100%;
    }

    .publicFootPower p {
        font-size:10px;
        transform: scale(0.9);
    }

    .publicHeader .fheader .middle_nav li .thematicSecond_nav li a, .publicHeader .fheader .middle_nav li .classroomSecond_nav li a {
        font-size: 12px;
        text-align: center;
    }

    .company_logophone {
        max-height: 0.5rem;
        max-width: 3rem;
        padding-left: 0.1rem;
        box-sizing: border-box;
        vertical-align: middle;
    }

    .publicHeader .fheader .personal_info .login_area {
        background: url(/images/login_btn.png) no-repeat 0 0.3rem;
        overflow:hidden
    }

        .publicHeader .fheader .personal_info .login_area:hover {
            background: url(/images/login_btn_hover.png) no-repeat 0 0.3rem;
        }
        .publicHeader .fheader .personal_info .login_area a{
            width:100%;
            box-sizing:border-box;
            display:block;
        }


    .phonewebNavWrap .isPhoneNav {
        /*pointer-events: none;*/

    }

    .publicHeader .fheader .middle_nav li a {
        color: #2A2B2D;
        padding:0 5px;
    }
    .publicHeader .fheader .middle_nav .isPNav a {
        /*color: #0090FC;*/
        color: #2A2B2D;
    }
    .socoton {
        background: url(../images/linkMr.png) left 15px no-repeat;
        background-size: 18px;
    }

        .socoton:hover {
            background: url(../images/linkSelect.png) left 15px no-repeat;
            background-size: 18px;
        }

    .personal_info .socoton .linkSecond_nav {
        top: 36px;
    }

}