/* FlashNews / AINews 列表页 - 仅移动端/平板窄屏 */

[data-sticky] {
    position: relative !important;
    top: auto !important;
}

.sticky-sidebar {
    position: relative;
    top: auto;
    max-height: none;
    overflow-y: visible;
}

@media (max-width: 991.98px) {
    .tech-news-container {
        padding: 0.75rem 0 1.5rem;
        min-height: auto;
    }

    .tech-news-container > .container,
    .tech-news-container .flashnews-zh .container {
        padding-left: 1.25rem !important;
        padding-right: 1.25rem !important;
    }

    .news-header {
        padding: 1rem 0 0.5rem !important;
        margin-bottom: 0 !important;
    }

    .news-header h2 {
        font-size: 1.5rem !important;
        letter-spacing: 0.5px;
        background: none !important;
        -webkit-background-clip: border-box !important;
        -webkit-text-fill-color: unset !important;
        text-shadow: none !important;
        color: var(--primary-color) !important;
    }

    .news-separator {
        margin-bottom: 0.75rem !important;
    }

    .cyber-table {
        border-spacing: 0 !important;
        margin-bottom: 1rem !important;
    }

    .cyber-table tbody tr {
        background: transparent !important;
        backdrop-filter: none !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        border-bottom: 1px solid rgba(128, 128, 128, 0.15);
    }

    .cyber-table tbody tr:hover {
        transform: none !important;
        box-shadow: none !important;
    }

    .cyber-table tbody tr:last-child {
        border-bottom: none;
    }

    .cyber-table td {
        padding: 1rem 0 !important;
    }

    .news-item .news-title {
        font-size: 1rem !important;
        line-height: 1.4 !important;
        padding-left: 0.65rem !important;
        margin-bottom: 0.5rem !important;
    }

    .news-summary {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        margin-bottom: 0.75rem !important;
    }

    .news-item .time-column {
        position: static !important;
        display: block !important;
        margin-top: 0.75rem !important;
        text-align: right !important;
        padding-right: 0 !important;
        right: auto !important;
        bottom: auto !important;
        font-size: 0.85rem !important;
    }

    .cyber-btn {
        padding: 0.45rem 0.9rem !important;
        font-size: 0.8rem !important;
        margin-right: 0.5rem !important;
        margin-bottom: 0.5rem !important;
    }

    .cyber-pagination {
        gap: 0.5rem !important;
        padding: 1rem 0 !important;
    }

    .cyber-pagination .page-item .page-link {
        padding: 0.4rem 0.8rem !important;
        font-size: 0.8rem !important;
        border-radius: 15px !important;
    }

    .advertisement-section > div[style*="width: 300px"],
    .advertisement-section [data-aaad] {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: auto !important;
        margin-right: auto !important;
    }

    .premium-sponsor {
        padding: 1rem;
        margin-bottom: 1.2rem;
        min-height: 120px;
    }

    .sponsor-title {
        font-size: 1rem;
        margin-bottom: 0.3rem;
    }

    .sponsor-grid {
        gap: 0.75rem;
    }

    .sponsor-item {
        padding: 0.75rem;
        height: 70px;
    }

    .sponsor-logo {
        width: 100px !important;
        height: 40px !important;
    }

    .trending-topics-section {
        margin-bottom: 1.2rem;
    }

    .trending-topics-section h4 {
        margin-top: 1.2rem;
        margin-bottom: 0.8rem;
    }

    .advertisement-section {
        margin-top: 1.2rem;
    }

    .advertisement-section p {
        margin-top: 0.8rem;
        margin-bottom: 0;
        font-size: 0.85rem;
        line-height: 1.4;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .news-header h2 {
        font-size: 1.35rem !important;
    }

    .sponsor-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .sponsor-item {
        height: 60px;
    }

    .sponsor-logo {
        width: 90px !important;
        height: 35px !important;
    }

    .premium-sponsor {
        margin-bottom: 1rem;
    }

    .trending-topics-section {
        margin-bottom: 1rem;
    }

    .trending-topics-section h4 {
        margin-top: 1rem;
        margin-bottom: 0.6rem;
    }

    .advertisement-section {
        margin-top: 1rem;
    }
}