body {
    background: #F8F7F7;
}

.category_head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

    .category_head .category_head_left {
        display: flex;
        align-items: center;
    }

@media (min-width: 1200px) {
    a:hover {
        cursor: pointer;
    }

    .content_box {
        width: 100%;
        position: relative;
        min-width: 1200px;
    }

    .content_detail {
        position: relative;
        z-index: 10;
    }

    .content_box .cloud_bg {
        width: 100%;
        display: block;
        height: 485px;
        position: absolute;
        bottom: 0;
        left: 0;
        object-fit: cover;
    }



    .category_head_left .lotus_icon {
        width: 59px;
        height: 40px;
        display: block;
        margin-right: 14px;
    }

    .category_head_left .category_head_title {
        font-size: 40px;
        color: #000000;
        line-height: 40px;
    }

    .category_head .category_head_right {
        width: 120px;
        height: 40px;
        border: 1px solid #868585;
        border-radius: 20px;
        font-size: 18px;
        color: #868585;
        line-height: 40px;
        text-align: center;
        display: block;
    }

        .category_head .category_head_right:hover {
            cursor: pointer;
        }

    .elegant_box {
        width: 1200px;
        margin: 0 auto;
        padding: 110px 0 200px;
    }

    .video_box {
        width: 1200px;
        margin: 100px auto 0;
    }

    .address_box {
        margin-top: 70px;
        background: #FFFFFF;
        border-radius: 30px;
        padding: 28px 24px;
    }

    .address_bg {
        width: 1152px;
        height: 484px;
    }

    .video_list {
        margin-top: 70px;
        display: flex;
        align-items: center;
    }

    .video_item {
        display: flex;
        align-items: center;
        width: 355px;
        height: 158px;
        background: #FFFFFF;
        border-radius: 30px;
        justify-content: center;
        margin-right: 68px;
        position:relative;
    }

        .video_item:nth-child(3n) {
            margin-right: 0;
        }

        .video_item .wechart_icon {
            width: 100px;
            height: 100px;
            display: block;
            margin-right: 21px;
        }

        .video_item .douyin_icon {
            width: 207px;
            height: 87px;
            display: block;
        }

        .video_item .webo_icon {
            width: 264px;
            height: 81px;
            display: block;
        }

    .video_item_text {
        font-size: 30px;
        color: #000000;
    }
    .public_icon_box {
        position: absolute;
        bottom: -220px;
        left: 50%;
        transform: translateX(-50%);
        display:none;
    }
    .video_item:hover .public_icon_box {
        display:block;
    }
    .public_icon {
        width: 200px;
        height: 200px;
        display: block;
    }
    .public_jian {
        width: 0;
        height: 0;
        border-left: 20px solid transparent;
        border-right: 20px solid transparent;
        border-bottom: 20px solid white;
        position: absolute;
        left: 50%;
        top: -20px;
        transform: translateX(-50%);
    }
}

@media screen and (max-width:1200px) {
    .container {
        display: flex;
        flex-direction: column;
        height: 100%;
    }

        .container .content_box {
            flex: 1;
        }
}

@media (min-width:750px) and (max-width:1200px) {
    .content_box {
        padding: 0 40px 60px;
    }

    .category_head_left .lotus_icon {
        width: 41px;
        height: 28px;
        display: block;
        margin-right: 10px;
    }

    .category_head_left .category_head_title {
        font-size: 28px;
        color: #000000;
    }

    .cloud_bg {
        display: none;
    }

    .elegant_box {
        padding-top: 60px;
    }

    .video_box {
        padding: 60px 0 0;
    }

    .address_box .address_bg {
        width: 100%;
        height: 300px;
        margin-top: 30px;
        border-radius: 30px;
    }

    .video_list {
        margin-top: 30px;
        display: flex;
        align-items: center;
        box-sizing: border-box;
    }

    .video_item {
        display: flex;
        align-items: center;
        width: 33.3%;
        height: 91px;
        background: #FFFFFF;
        border-radius: 30px;
        justify-content: center;
        margin-right: 29px;
        position:relative;
    }

        .video_item:nth-child(3n) {
            margin-right: 0;
        }

        .video_item .wechart_icon {
            width: 60px;
            height: 60px;
            display: block;
            margin-right: 11px;
        }

        .video_item .douyin_icon {
            width: 118px;
            height: 49px;
            display: block;
        }

        .video_item .webo_icon {
            width: 152px;
            height: 46px;
            display: block;
        }

    .video_item_text {
        font-size: 17px;
        color: #000000;
    }
    .public_icon_box {
        position: absolute;
        bottom: -220px;
        left: 50%;
        transform: translateX(-50%);
        display: none;
    }


    .public_icon {
        width: 200px;
        height: 200px;
        display: block;
    }

    .public_jian {
        width: 0;
        height: 0;
        border-left: 20px solid transparent;
        border-right: 20px solid transparent;
        border-bottom: 20px solid white;
        position: absolute;
        left: 50%;
        top: -20px;
        transform: translateX(-50%);
    }
}

@media screen and (max-width:750px) {
    .content_box {
        padding: 0 20px 30px;
    }

    .category_head_left .lotus_icon {
        width: 21px;
        height: 14px;
        display: block;
        margin-right: 5px;
    }

    .category_head_left .category_head_title {
        font-size: 14px;
        color: #000000;
    }

    .cloud_bg {
        display: none;
    }

    .elegant_box {
        padding-top: 30px;
    }

    .video_box {
        padding: 30px 0 0;
    }

    .address_box .address_bg {
        width: 100%;
        height: 150px;
        margin-top: 15px;
        border-radius: 15px;
    }

    .video_list {
        margin-top: 15px;
        display: flex;
        align-items: center;
        box-sizing: border-box;
    }

    .video_item {
        display: flex;
        align-items: center;
        width: 33.3%;
        height: 45px;
        background: #FFFFFF;
        border-radius: 15px;
        justify-content: center;
        margin-right: 15px;
        position:relative;
    }

        .video_item:nth-child(3n) {
            margin-right: 0;
        }

        .video_item .wechart_icon {
            width: 30px;
            height: 30px;
            display: block;
            margin-right: 6px;
        }

        .video_item .douyin_icon {
            width: 59px;
            height: 25px;
            display: block;
        }

        .video_item .webo_icon {
            width: 76px;
            height: 23px;
            display: block;
        }

    .video_item_text {
        font-size: 10px;
        color: #000000;
    }

    .public_icon {
        width: 100px;
        height: 100px;
        display: block;
    }

    .public_jian {
        width: 0;
        height: 0;
        border-left: 10px solid transparent;
        border-right: 10px solid transparent;
        border-bottom: 10px solid white;
        position: absolute;
        left: 50%;
        top: -10px;
        transform: translateX(-50%);
    }
    .public_icon_box {
        position: absolute;
        bottom: -110px;
        left: 50%;
        transform: translateX(-50%);
        display: none;
    }
}