/* 底部功能区 */
main .footer_func_box {
    position: fixed;
    bottom: 0px;
    left: 0px;
    width: 100%;
    height: 50px;
    background: rgba(0, 0, 0, 0.4);
    padding: 0px 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    z-index: 100;
}

main .footer_func_box .icon_img {
    width: 20px;
    height: 20px;
    margin: 0px 10px;
}

main .footer_func_box .page_number_input {
    width: 80px;
    height: 30px;
    text-align: center;
}