/* ==========================================
   CineBot-X 响应式样式
   适配各种屏幕尺寸
   ========================================== */

/* 平板设备 (768px - 1024px) */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-stats {
        gap: var(--spacing-md);
    }

    .stat-number {
        font-size: 2rem;
    }

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

    .mode-panel.active {
        grid-template-columns: 1fr;
    }

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

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

    .contact-content {
        grid-template-columns: 1fr;
    }

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

/* 手机设备 (最大 768px) */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    /* 导航栏 */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* Hero 区域 */
    .hero {
        min-height: 80vh;
        padding-top: 70px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
    }

    .feature-badge {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto var(--spacing-lg);
    }

    .hero-cta .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .stat-number {
        font-size: 1.8rem;
    }

    /* 区块 */
    section {
        padding: var(--spacing-lg) 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    /* 功能卡片 */
    .features-grid {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: var(--spacing-md);
    }

    .feature-icon {
        width: 48px;
        height: 48px;
    }

    /* 产品图片展示 */
    .gallery-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--spacing-xs);
    }

    .gallery-overlay {
        transform: translateY(0);
        background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.3) 100%);
    }
    
    .gallery-overlay h3,
    .gallery-overlay p {
        color: #FFFFFF !important;
    }
    
    /* 运镜模式 */
    .mode-submodes {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .mode-submodes .submode-card {
        min-width: 180px;
        max-width: calc(50% - var(--spacing-sm));
    }

    /* 运镜模式 */
    .modes-tabs {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .tab-btn {
        width: 100%;
    }

    .mode-panel.active {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .mode-visual {
        order: 2;
    }

    .mode-info {
        order: 1;
    }

    .mode-info h3 {
        font-size: 1.5rem;
    }

    .mode-desc {
        font-size: 1rem;
    }

    .mode-submodes .submode-card {
        min-width: 150px;
        max-width: 100%;
    }

    /* 技术参数 */
    .specs-grid {
        grid-template-columns: 1fr;
    }

    .spec-table td {
        padding: var(--spacing-xs) 0;
        font-size: 0.9rem;
    }

    /* 版本对比 */
    .versions-grid {
        grid-template-columns: 1fr;
    }

    .version-card {
        padding: var(--spacing-md);
    }

    .version-name {
        font-size: 1.5rem;
    }

    .price-value {
        font-size: 1.5rem;
    }

    /* 联系表单 */
    .contact-content {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: var(--spacing-md);
    }

    /* 页脚 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-brand {
        margin-bottom: var(--spacing-md);
    }

    .social-links {
        justify-content: center;
    }

    /* 返回顶部按钮 */
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

/* 小屏手机 (最大 480px) */
@media (max-width: 480px) {
    :root {
        font-size: 13px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .feature-card h3 {
        font-size: 1.25rem;
    }

    .mode-info h3 {
        font-size: 1.25rem;
    }

    .version-name {
        font-size: 1.25rem;
    }

    .spec-table td:first-child {
        width: 50%;
    }
}

/* 超大屏幕 (最小 1440px) */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 5rem;
    }

    .hero-subtitle {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 3rem;
    }

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

/* 横屏模式 */
@media (max-height: 600px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .hero-stats {
        display: none;
    }

    .scroll-indicator {
        display: none;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .hero-cta,
    .scroll-indicator,
    .back-to-top,
    .contact-form {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    section {
        page-break-inside: avoid;
    }

    .feature-card,
    .version-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }

    .nav-menu a {
        padding: var(--spacing-sm);
    }

    .tab-btn {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    /* 移除悬停效果 */
    .feature-card:hover,
    .submode-card:hover,
    .version-card:hover {
        transform: none;
    }

    /* 添加点击效果 */
    .feature-card:active,
    .submode-card:active,
    .version-card:active {
        transform: scale(0.98);
    }

    .btn:active {
        transform: scale(0.95);
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0052CC;
        --dark: #000000;
        --white: #FFFFFF;
    }

    .btn-outline {
        border-width: 3px;
    }

    .feature-card,
    .version-card {
        border: 2px solid var(--dark);
    }
}

/* 暗色模式 */
@media (prefers-color-scheme: dark) {
    :root {
        --dark: #FFFFFF;
        --white: #1A1A1A;
        --bg-light: #2D2D2D;
        --gray: #AAAAAA;
        --light-gray: #555555;
    }

    body {
        background-color: var(--white);
        color: var(--dark);
    }

    .navbar {
        background: rgba(26, 26, 26, 0.95);
    }

    .feature-card,
    .spec-category,
    .version-card,
    .contact-form {
        background: #2D2D2D;
        color: #FFFFFF;
    }

    .mode-visual {
        background: #000000;
    }

    .spec-table tr {
        border-bottom-color: #555555;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        background: #1A1A1A;
        color: #FFFFFF;
        border-color: #555555;
    }
}