@media (max-width: 992px) {
    .search-card-wrapper {
        max-width: 100%;
    }

    .feature-cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .main-content-layout {
        flex-direction: column;
    }

    .sidebar-col {
        width: 100%;
        position: static;
    }

    .help-cta-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .help-v-divider {
        display: none;
    }

    .help-right-features {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 640px) {
    .hero-banner-section { background-image: var(--support-hero-image-mobile, var(--support-hero-image, url('../images/article-support-banner-bg.png'))); }
    .support-page {
        padding-top: 60px;
    }

    .support-container {
        padding: 0 16px;
    }

    .hero-banner-section {
        min-height: 300px;
        padding: 72px 0 96px;
    }

    .search-card-wrapper {
        padding: 0 16px;
    }

    .search-card {
        padding-left: 20px;
    }

    .search-btn {
        padding: 12px 22px;
    }

    .feature-cards-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
        margin: 32px 0 28px;
    }

    .feature-cards-grid .feature-card:last-child:nth-child(odd) {
        grid-column: 1 / -1;
        width: calc((100% - 12px) / 2);
        justify-self: center;
    }

    .feature-card {
        display: grid;
        grid-template-columns: 36px minmax(0, 1fr);
        grid-template-rows: auto auto 1fr;
        column-gap: 10px;
        row-gap: 6px;
        min-height: 148px;
        padding: 14px;
        border-radius: 10px;
    }

    .feature-icon-box {
        grid-column: 1;
        grid-row: 1;
        width: 36px;
        height: 36px;
        margin: 0;
        border-radius: 9px;
    }

    .feature-icon {
        width: 19px;
        height: 19px;
    }

    .feature-card-title {
        grid-column: 2;
        grid-row: 1;
        align-self: center;
        min-width: 0;
        margin: 0;
        font-size: 14px;
        line-height: 1.35;
        overflow-wrap: anywhere;
    }

    .feature-card-desc {
        display: -webkit-box;
        grid-column: 1 / -1;
        grid-row: 2;
        min-height: 36px;
        margin: 0;
        overflow: hidden;
        font-size: 12px;
        line-height: 1.5;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
    }

    .feature-card-count {
        grid-column: 1 / -1;
        grid-row: 3;
        align-self: end;
        padding-top: 8px;
        border-top: 1px solid #f1f4f8;
        font-size: 11.5px;
    }

    .feature-card-count strong {
        font-size: 13px;
    }

    .banner-title {
        font-size: 28px;
    }

    .article-item-card {
        flex-direction: column;
    }

    .articles-header.is-filtered::after {
        display: none;
    }

    .article-thumb {
        width: 100%;
        height: 140px;
    }

    .article-item-footer {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .article-tags-group {
        flex-wrap: wrap;
    }

    .help-cta-card {
        padding: 26px 22px;
    }

    .help-right-features {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .feature-cards-grid,
    .support-tags-card {
        display: none !important;
    }
}

@media (max-width: 360px) {
    .feature-cards-grid { gap: 10px; }
    .feature-cards-grid .feature-card:last-child:nth-child(odd) { width: calc((100% - 10px) / 2); }
    .feature-card { grid-template-columns: 32px minmax(0, 1fr); column-gap: 8px; min-height: 142px; padding: 12px 10px; }
    .feature-icon-box { width: 32px; height: 32px; }
    .feature-card-title { font-size: 13px; }
}

@media (hover: none) and (pointer: coarse) {
    .feature-card:hover { transform: none; border-color: var(--border-color); box-shadow: var(--shadow-card); }
    .feature-card.active:hover { border-color: rgba(199, 213, 255, 0.72); box-shadow: 0 10px 26px rgba(77, 111, 249, 0.1), 0 2px 8px rgba(78, 100, 150, 0.04); }
}

@media (prefers-reduced-motion: reduce) {
    [data-support-reveal] {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .support-page .feature-cards-grid.is-revealed .feature-card,
    .support-page .article-item-card.is-filter-entering {
        animation: none;
    }
}