/* 响应式设计 */

/* 平板设备 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .input-grid {
        grid-template-columns: 1fr;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .charts-section {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .region-buttons {
        justify-content: center;
    }
    
    .region-btn {
        flex: 1;
        min-width: 80px;
    }
}

/* 手机设备 */
@media (max-width: 480px) {
    .main {
        padding: 1rem 0;
    }
    
    .region-selector,
    .input-section,
    .result-card,
    .chart-container {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .nav {
        width: 100%;
        justify-content: center;
    }
    
    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
    
    .region-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .region-btn {
        width: 100%;
        padding: 1rem;
    }
    
    .input-group label {
        font-size: 0.9rem;
    }
    
    .input-group input {
        padding: 1rem;
        font-size: 1rem;
    }
    
    .results-table {
        font-size: 0.875rem;
    }
    
    .results-table th,
    .results-table td {
        padding: 0.5rem;
    }
    
    .summary-item {
        padding: 1rem 0;
    }
    
    .summary-item .label,
    .summary-item .value {
        font-size: 0.9rem;
    }
    
    .summary-item.highlight .value {
        font-size: 1.1rem;
    }
    
    .chart-container canvas {
        max-height: 250px;
    }
    
    .footer {
        padding: 1rem 0;
        font-size: 0.875rem;
    }
}

/* 超小屏幕 */
@media (max-width: 320px) {
    .container {
        padding: 0 10px;
    }
    
    .region-selector,
    .input-section,
    .result-card,
    .chart-container {
        padding: 0.75rem;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    .nav-link {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
    
    .results-table {
        font-size: 0.8rem;
    }
    
    .summary-item .label,
    .summary-item .value {
        font-size: 0.85rem;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .main {
        padding: 0.5rem 0;
    }
    
    .region-selector,
    .input-section,
    .result-card,
    .chart-container {
        padding: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .charts-section {
        grid-template-columns: 1fr 1fr;
    }
    
    .chart-container canvas {
        max-height: 200px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .region-btn,
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .input-group input {
        min-height: 44px;
    }
    
    /* 增加触摸目标大小 */
    .region-btn {
        padding: 1rem 1.5rem;
    }
    
    /* 移除悬停效果 */
    .result-card:hover {
        transform: none;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .results-table,
    .summary-item {
        border-width: 0.5px;
    }
}

/* 打印样式 */
@media print {
    .header,
    .footer,
    .nav {
        display: none;
    }
    
    .main {
        padding: 0;
    }
    
    .result-card,
    .chart-container {
        box-shadow: none;
        border: 1px solid #e5e7eb;
        break-inside: avoid;
    }
    
    .charts-section {
        grid-template-columns: 1fr;
    }
    
    body {
        background: white;
    }
}