@media (max-width: 767px) {

    html,
    body {
        font-family: '微软雅黑';
        font-size: 14px;
        text-align: center;
        color: #333;
        line-height: 28px;
    }

    .M_topNav ul {
        width: 100%;
    }

    .header_center {
        width: 100%;
    }

    .content_main {
        width: 100%;
    }

    .content_top {
        width: 100%;
    }

    .content_bottom {
        width: 100%;
        flex-wrap: wrap;
        margin-top: .4rem;
    }

    .content_left {
        width: 100%;
    }

    .content_right {
        width: 100%;
    }

    .content_right_top_item,
    .content_right_top_item_last {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }

    .content_right_bottom_item {
        text-align: left;
    }

    .content_right_top_list {
        padding: 0 .24rem;
        text-align: left;
    }

    .content_right_top_img {
        width: 100%;
    }

    .content_right_bottom_item_content .content_right_bottom_item_date {
        font-size: .24rem;
    }


    img {
        width: 100% !important;
    }

    .content_right_bottom_item {
        margin: 0;
    }

    .content_right_bottom_item_img {
        width: 2.26rem;
        height: 1.38rem;
        float: none;
        overflow: hidden;
        border-radius: 0.12rem;
    }

    .content_right_bottom_item_content {
        flex: 1;

    }

    .content_right_bottom_item_title a {
        font-size: 0.3rem;
        line-height: 0.44rem;
        font-weight: normal;
        -webkit-line-clamp: 2;
    }

    .content_right_bottom_item_date {
        width: auto;
        height: 0.4rem;
        text-align: left;
        font-size: 0.24rem;
        line-height: 0.4rem;
        font-weight: normal;
        padding: 0 !important;
    }

    .content_right_bottom_list {
        padding: 0 .24rem;
    }

    .content_right_bottom_header,
    .content_right_top_header,
    .content_left_header {
        height: 0.95rem;
        margin: 0 0.24rem .4rem;
    }

    .content_right_bottom_header .content_left_title,
    .content_right_top_header .content_right_title,
    .content_left_header .content_left_title {
        font-size: 0.36rem;
        line-height: 0.95rem;
        padding-right: 0.35rem;
    }

    .content_right_bottom_header .content_left_more,
    .content_right_top_header .content_right_more,
    .content_left_header .content_left_more {
        font-size: 0.24rem;
        line-height: 0.95rem;
    }

    .content_left {
        margin-bottom: .3rem;
    }

    .content_right_top_item,
    .content_right_top_item_last {
        padding: 0 15px;
    }

    .content_left_item {
        height: auto;
    }

    .header_nav {
        display: none;
    }

    .content_left_item_content .content_left_item_title {
        font-size: .3rem;
        line-height: .38rem;
    }

    .content_left_item_content .content_left_item_abstract {
        font-size: .24rem;
        line-height: .4rem;
        display: none;
    }

    .content_left_item {
        margin-bottom: .35rem;
    }

    .content_left_list {
        padding: 0 .24rem;
        padding-top:0.24rem;
    }

    .content_left_item_content {
        padding-right: 0;

    }

    .content_right_top_item_title {
        font-size: .3rem;
        line-height: .38rem;
        font-weight: normal;
        margin-bottom: .24rem;
    }

    .content_right_top_item_date {
        font-size: .24rem;
    }

    .content_right_top_item {
        height: auto;
        padding: .2rem 0;
    }

    .content_right_bottom {
        margin-top: .3rem;
    }

    .mb-only {
        /* display: block !important; */
    }

    .header {
        display: none !important;
    }

    .sub-channel-nav {
        display: flex !important;
        padding: 60px .24rem 0;
    }


    .channel-img {
        width: 120px;
    }

    .sub-channel-nav ul {
        display: flex;
        margin-bottom: 0;
    }

    .sub-channel-nav ul li {
        margin-right: 20px;
        font-size: .38rem;
    }

    .sub-channel-nav ul a {
        color: #000;
    }

    #menu-nav {
        display: block !important;
    }
}

.mb-only {
    display: none;
}

.sub-channel-nav {
    display: none;
}

#menu-nav {
    display: none;
}

@media (max-width: 767px) {


    .sub-channel-nav {
        box-shadow: 0px 15px 10px -15px rgba(0, 0, 0, 0.35);
    }

    .channel-menu {
        width: 100%;
    }

    .channel-menu .swiper-slide {
        width: auto;
        margin-right: 20px;
        font-size: .3rem;
    }

    .channel-menu .swiper-slide.swiper-slide-active {
        border-bottom: 2px solid #bc0a16;
    }

    .area_list .area_item:hover {
        transform: unset;
    }
}

.content_right_bottom_item_img img {
    vertical-align: top !important;
}