@media screen and (max-width: 768px) {

    .bottom-block {
        height: 50px;
        width: 100%;
    }

    .footer-fixed {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 50px;
        background: #ffffff;
        z-index: 99999;
        box-shadow: 0 0 5.333333vw rgba(0,0,0,0.05);
        display: flex;
        align-items: center;
        justify-content: space-between;
        box-sizing: border-box;
        padding: 0 20px;
    }

    .footer-fixed .item a {
        display: flex;
        align-items: center;
    }

    .footer-fixed .item .icon {
        width: 5.866667vw; /* 22px转换，22 / 375 * 100 = 5.866667vw */
        height: 5.866667vw; /* 22px转换，22 / 375 * 100 = 5.866667vw */
        margin-right: 2.133333vw; /* 8px转换，8 / 375 * 100 = 2.133333vw */
    }
    .footer-fixed .item .label {
        font-size: 3.733333vw; /* 14px转换，14 / 375 * 100 = 3.733333vw */
        color: #6759FF;
    }
    .footer-fixed .item .label.wechat {
        color: #43C93E;
    }

    .qr-code-fixed {
        display: none;
        position: fixed;
        bottom: 68px;
        left: 16px;
        width: 120px;
        height: 120px;
        z-index: 99999;
    }
    .qr-code-fixed .qr-code {
        width: 100%;
        height: 100%;
    }
    .qr-code-fixed.show {
        display: block;
    }
}