@media (max-width: 1024px) {
    .resource-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .action-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pc-nav,
    .pc-search,
    .pc-user,
    .pc-widgets {
        display: none !important;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-search-bar {
        display: block;
    }

    .mobile-bottom-nav {
        display: flex;
    }

    .site-main {
        padding-bottom: 80px;
    }

    .site-footer {
        padding-bottom: 72px;
    }

    .header-inner {
        height: 56px;
        gap: 12px;
    }

    .logo a {
        font-size: 16px;
    }

    .logo img {
        height: 28px;
    }

    .resource-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .resource-info {
        padding: 10px;
    }

    .resource-title {
        font-size: 14px;
        height: 38px;
        line-height: 1.3;
    }

    .resource-desc {
        display: none;
    }

    .resource-meta {
        font-size: 11px;
        flex-direction: column;
        gap: 4px;
    }

    .banner-item {
        height: 180px;
    }

    .banner-content h1 {
        font-size: 22px;
    }

    .banner-content p {
        font-size: 14px;
    }

    .section-title {
        font-size: 17px;
    }

    .section {
        margin-bottom: 20px;
    }

    .category-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .category-item {
        padding: 12px 6px;
        border-radius: 8px;
    }

    .category-icon {
        font-size: 24px;
    }

    .category-name {
        font-size: 12px;
    }

    .detail-page .detail-main {
        padding: 16px;
    }

    .detail-title {
        font-size: 18px;
    }

    .detail-meta {
        font-size: 12px;
        gap: 10px;
    }

    .detail-actions {
        flex-direction: column;
    }

    .detail-actions .btn {
        width: 100%;
    }

    .user-page {
        flex-direction: column;
        gap: 16px;
    }

    .user-sidebar {
        width: 100%;
    }

    .user-info-card {
        padding: 16px;
    }

    .user-menu {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 4px;
    }

    .user-menu .menu-item {
        padding: 10px 6px;
        font-size: 12px;
        text-align: center;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .user-menu .menu-item.logout {
        border-top: none;
        margin-top: 0;
        padding-top: 10px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-card {
        padding: 14px;
        gap: 10px;
    }

    .stat-icon {
        font-size: 28px;
    }

    .stat-number {
        font-size: 18px;
    }

    .stat-label {
        font-size: 12px;
    }

    .user-dashboard,
    .user-list-page {
        padding: 16px;
    }

    .page-title {
        font-size: 17px;
    }

    .action-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }

    .action-item {
        padding: 12px 8px;
    }

    .action-icon {
        font-size: 20px;
    }

    .list-page .filter-bar {
        padding: 12px 14px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .filter-left {
        width: 100%;
    }

    .result-count {
        font-size: 13px;
    }

    .breadcrumb {
        padding: 10px 0;
        font-size: 12px;
        overflow-x: auto;
        white-space: nowrap;
    }

    .page-content {
        padding: 20px 16px;
    }

    .page-header {
        margin-bottom: 20px;
        padding-bottom: 16px;
    }

    .page-header h1 {
        font-size: 22px;
    }

    .static-content h2 {
        font-size: 16px;
        margin-top: 20px;
    }

    .static-content p,
    .static-content ul li {
        font-size: 14px;
    }

    .login-modal .modal-content {
        width: 90vw;
        max-width: 320px;
        padding: 20px 16px;
    }

    .login-title {
        font-size: 16px;
        margin-bottom: 16px;
    }

    .qrcode-container {
        width: 180px;
        height: 180px;
    }

    .login-tips p {
        font-size: 12px;
    }

    .search-page .search-header {
        padding: 16px;
    }

    .search-form-wrap form {
        gap: 8px;
    }

    .search-form-wrap input {
        padding: 10px 12px;
        font-size: 14px;
    }

    .search-form-wrap button {
        padding: 10px 18px;
        font-size: 14px;
    }

    .search-result,
    .hot-search {
        padding: 16px;
    }

    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .result-header h3 {
        font-size: 15px;
    }

    .container {
        padding: 0 12px;
    }

    .site-footer {
        padding: 20px 0;
    }

    .footer-links {
        font-size: 12px;
        line-height: 2;
    }

    .footer-links .sep {
        margin: 0 8px;
    }

    .footer-copyright {
        font-size: 12px;
    }

    .tag-item {
        font-size: 12px;
        padding: 3px 10px;
    }

    .detail-tags {
        gap: 6px;
    }

    .pagination a,
    .pagination span {
        padding: 5px 10px;
        font-size: 13px;
        margin: 0 2px;
    }

    .btn {
        padding: 10px 16px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .resource-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .category-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .banner-item {
        height: 160px;
    }

    .banner-content h1 {
        font-size: 20px;
    }

    .user-menu {
        grid-template-columns: repeat(4, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 769px) {
    .mobile-menu-btn,
    .mobile-search-bar,
    .mobile-bottom-nav,
    .mobile-overlay,
    .mobile-sidebar {
        display: none !important;
    }
}