.cj_two_column {
    display: flex;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.cj_three_column {
    display: flex;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.cj_four_column {
    display: flex;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.cj_column {
    flex: 1;
    padding: 20px;
    background-color: #f4f4f4;
    border-radius: 5px;
}

@media (max-width: 768px) {
    .cj_two_column {
        flex-direction: column;
    }
    .cj_three_column {
        flex-direction: column;
    }
    .cj_three_column .cj_column {
        flex: 1;
    }
    .cj_four_column {
        flex-direction: column;
    }
}

@media (max-width: 992px) {
    .cj_three_column {
        flex-wrap: wrap;
    }
    .cj_three_column .cj_column {
        flex: 0 0 calc(50% - 10px);
    }
    .cj_four_column {
        flex-wrap: wrap;
    }
    .cj_four_column .cj_column {
        flex: 0 0 calc(50% - 10px);
    }
}