.bottom .useful .wrap {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 50px 30px;
}

.bottom .useful .wrap > a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.bottom .useful .wrap > a:hover h4 {
    color: #23b0cfff;
}

.bottom .useful .wrap > a article {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.bottom .useful .wrap a article  h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 15px 0;
    line-height: 1.5;
    color: #111;
    transition: color 0.3s ease;
    height: 3.3rem;
    overflow: hidden;
    height: 4rem;
    margin-bottom: 1rem !important;
}

.bottom .useful .wrap > a > article .item-box {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin: 6px 0 8px;
}
.bottom .useful .wrap > a > article .item-box img {
    width: 90%;
    height: auto;
}

.bottom .useful article p:not(.link) { 
    font-size: 0.9rem;
    line-height: 1.7;
    margin: 0 0 15px 0;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bottom .useful article .link {
    background-color: #23b0cf;
    color: white;
    font-weight: 500;
    text-align: center;
    border: #23b0cf;
    border-radius: 999px;
    padding: 10px 20px;
    width: 180px;
    margin: 20px auto 0;
    transition: background-color 0.3s ease;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.bottom .useful .wrap > a:hover .link {
    background-color: #1c8da0;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 1024px) {
        .useful .wrap {
                grid-template-columns: repeat(2, 1fr);
        }
}

@media (max-width: 768px) {
    .bottom .useful .wrap {
        grid-template-columns: 1fr;
        gap: 24px 0;
    }

    .bottom .useful .wrap > a {
        border-bottom: 1px solid #eee;
        padding-bottom: 20px;
    }
    .bottom .useful .wrap > a:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
}