.ecommerce-jd .jd-section-title img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0;
}

.ecommerce-jd .banner img,
.ecommerce-jd .link-item img {
    display: block;
    height: auto;
}

@media screen and (max-width: 799px) {
    .ecommerce-jd .link-item a {
        order: 1;
    }

    .ecommerce-jd .link-item img.pic {
        order: 2;
    }
}