@media (max-width: 1199px) {
    .search-content {
        padding: 24px 16px;
    }
    
    .search-header {
        margin-bottom: 20px;
        flex-direction: column;
        gap: 12px;
    }
    
    .feature-guide-toggle {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
    }
    
    .search-box {
        flex-direction: column;
        padding: 4px;
        max-width: 100%;
    }
    
    #search-btn {
        width: 100%;
        padding: 12px;
    }
    
    .integrated-filter-bar {
        margin-bottom: 16px;
    }
    
    .filter-bar-main {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 12px;
    }
    
    .filter-quick-group {
        flex-direction: column;
        gap: 8px;
    }
    
    .filter-quick-btn {
        width: 100%;
        justify-content: space-between;
        padding: 10px 14px;
    }
    
    .filter-sort-group {
        width: 100%;
    }
    
    .filter-sort-select {
        width: 100%;
    }
    
    .filter-dropdown-panel {
        padding: 12px;
    }
    
    .filter-platform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filter-brands-grid {
        grid-template-columns: repeat(2, 1fr);
        max-height: 250px;
    }
    
    .filter-price-quick {
        flex-direction: column;
    }
    
    .filter-price-quick-btn {
        width: 100%;
    }
    
    .filter-price-range {
        flex-direction: column;
        gap: 12px;
    }
    
    .filter-price-input-group {
        width: 100%;
    }
    
    .filter-grades-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filter-chip {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    .results-container {
        display: block;
    }
    
    .search-summary {
        padding: 12px 16px;
        font-size: 12px;
    }
    
    .pagination {
        gap: 4px;
        margin-top: 24px;
    }
    
    .pagination button {
        padding: 6px 12px;
        font-size: 12px;
    }
}

@media (min-width: 481px) and (max-width: 1199px) {
    .results-container {
        display: block;
    }
}

@media (max-width: 480px) {
    
    .filter-panel {
        grid-template-columns: 1fr;
        padding: 16px;
        gap: 16px;
    }
    
    .filter-panel-header {
        padding: 12px 16px;
    }
    
    .filter-panel-header h3 {
        font-size: 14px;
    }
    
    .filter-price-range {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-price-separator {
        display: none;
    }
    
    .filter-discount {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-save {
        flex-direction: column;
    }
    
    .filter-select {
        width: 100%;
    }
    
    .platform-section {
        margin-bottom: 24px;
    }
    
    .platform-header {
        padding: 16px;
    }
    
    .platform-title {
        font-size: 20px;
        margin-bottom: 10px;
    }
    
    .platform-stats {
        gap: 16px;
        font-size: 12px;
    }
    
    .stat-label {
        font-size: 12px;
    }
    
    .stat-value {
        font-size: 14px;
    }
    
    .platform-features {
        font-size: 11px;
        margin-top: 8px;
    }
    
    .platform-products-grid {
        padding: 16px;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (min-width: 481px) and (max-width: 1199px) {
    .platform-products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
    
    .statistics-card {
        padding: 16px;
    }
    
    .stat-row {
        flex-direction: column;
        gap: 12px;
    }
    
    .stat-rankings-list {
        gap: 6px;
    }
    
    .stat-ranking-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .welcome-section {
        padding: 40px 20px;
        margin-bottom: 24px;
    }

    .welcome-icon {
        font-size: 56px;
    }

    .welcome-title {
        font-size: 26px;
        margin-bottom: 16px;
        line-height: 1.4;
    }

    .welcome-description {
        font-size: 15px;
        margin-bottom: 40px;
        padding: 0 8px;
    }

    .welcome-features {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 40px;
    }

    .welcome-feature-item {
        padding: 16px 20px;
        flex-direction: row;
        text-align: left;
        gap: 16px;
    }

    .feature-icon-wrapper {
        width: 44px;
        height: 44px;
        margin: 0;
    }

    .feature-icon {
        font-size: 22px;
    }

    .feature-content h3 {
        font-size: 15px;
        margin-bottom: 6px;
    }

    .feature-content p {
        font-size: 13px;
        line-height: 1.7;
    }

    .welcome-tips {
        padding: 24px 20px;
        margin-bottom: 32px;
    }

    .tips-header {
        margin-bottom: 20px;
    }

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

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

    .tips-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .tips-list li {
        padding: 14px 18px;
        flex-direction: row;
        gap: 12px;
        text-align: left;
        align-items: center;
    }

    .tips-list li i {
        font-size: 18px;
    }

    .tips-list li strong {
        font-size: 14px;
        margin-bottom: 4px;
    }

    .tips-list li span {
        font-size: 12px;
    }

    .welcome-platforms {
        margin-top: 32px;
        padding-top: 32px;
    }

    .platforms-title {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .platforms-description {
        font-size: 13px;
        margin-bottom: 20px;
    }

    .platforms-grid {
        gap: 10px;
    }

    .platform-badge-item .platform-badge {
        padding: 6px 14px;
        font-size: 12px;
    }
}