.article4 {
    background-color: #f5f5f5;
}

.a4-title {
    color: #222;
    font-size: 50px;
    font-weight: 700;
    margin-bottom: 3rem;
}

.a4-table {
    background-color: #fff;
}

.a4-table thead {
    border: 1px solid var(--main-color);
    border-top: none;
    border-bottom: none;
    background-color: var(--main-color);
}

.a4-table thead tr td {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    border-right: 1px solid #ffffff60;
}

.a4-table tbody tr td {
    color: #222;
    padding: 24px 0;
    font-size: 20px;
    font-weight: 600;
}

.a4-table tbody tr td:first-child {
    background-color: #eee;
}

.a4-bottom {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.a4-bottom h5 {
    color: #aaa;
    font-size: 16px;
    font-weight: 400;
}

.a4-bottom p {
    color: red;
    font-size: 19px;
    font-weight: 800;
}


/*==================================================*/
@media (max-width: 768px) {
    .a4-title {
        font-size: 40px;
        margin-bottom: 2rem;
    }

    .a4-table thead tr td {
        font-size: 15px;
    }
    
    .a4-table tbody tr td {
        padding: 20px 0;
        font-size: 16px;
    }
}


@media (max-width: 550px) {
    .a4-title {
        font-size: 32px;
    }

    .a4-table thead tr td {
        font-size: 13px;
    }
    
    .a4-table tbody tr td {
        padding: 12px 0;
        font-size: 14px;
    }

    .a4-bottom {
        flex-direction: column;
        justify-content: center;
    }
}