@media (max-width: 991px) {
    .indexB {
        background: none;
    }

    .indexB-box {
        height: auto;
    }

    .indexB-list {
        padding-top: 30px;
    }
}

/* 小于768px 平板样式 */
@media (max-width:768px) {
    .heading-section.a {
        margin-bottom: 2em;
    }

    .indexC-list,
    .indexC-list::after {
        width: 140px;
    }

    .col-md-3 .product-list-page .content-img {
        height: 100px;
    }

    .page .col-md-6 .product-list-page .content-img {
        height: 145px;
    }
}

/* 手机 */
@media (max-width: 576px) {

    .indexB-box>div:nth-child(1) {
        order: 2;
    }

    .indexB-box>div:nth-child(2) {
        order: 1;
    }

    .indexB-box>div:nth-child(3) {
        order: 3;
    }

    .indexB-box>div:nth-child(4) {
        order: 4;
    }

    .indexB-box>div:nth-child(5) {
        order: 6;
    }

    .indexB-box>div:nth-child(6) {
        order: 5;
    }

    .footer-nav {
        /* padding-left: 40px; */
        margin-bottom: 30px;
    }

    .footer-copyright {
        height: 60px;
        overflow: hidden;
    }

    .col-6 .product-list-page .content-img {
        height: 125px;
    }

    .page .col-6 .product-list-page .content-img {
        height: 125px;
    }
}