@media screen and (max-width: 992px) {
    .service-block {
        flex-direction: column !important;
        padding: 1rem;
        margin-bottom: 2rem;
    }

    .service-blocks .service-block:nth-child(even) {
        flex-direction: column !important;
    }

    .block-content {
        /* УДАЛИТЬ или ПЕРЕОПРЕДЕЛИТЬ эти свойства: */
        min-width: 100% !important;    /* вместо 450px */
        max-width: 100% !important;    /* вместо 500px */
        text-align: center !important;
        padding: 20px 10px !important;
    }

    .block-image {
        width: 100% !important;
        max-width: 550px !important;
        height: 350px !important;
        margin: 0 auto !important;
    }

    .block-image img {
        width: 85% !important;
        height: 85% !important;
    }
}