/* 智域奇点官网 - 响应式样式 */

/* 平板设备 (max-width: 1024px) */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }
    
    /* 英雄区域 */
    .hero-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
        padding-top: 100px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    /* 服务流程时间线（已用新实现，移除旧竖线） */
    
    .process-step {
        flex-direction: row;
        padding-left: 100px;
    }
    
    .process-step:nth-child(even) {
        flex-direction: row;
    }
    
    .step-number {
        position: absolute;
        left: 0;
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .step-content {
        margin: 0;
        border: none !important;
        outline: none !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    
    /* AI引擎可视化 */
    .ai-engine-visualization {
        height: 500px;
    }
    
    .core-circle {
        width: 100px;
        height: 100px;
    }
    
    .core-text {
        font-size: 16px;
    }
    
    .node-circle {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .node-label {
        font-size: 12px;
    }
    
    /* Demo网格 */
    .demo-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 25px;
    }
    
    /* 业务网格 */
    .business-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
    }
    
    /* 案例网格 */
    .cases-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
    }
    
    /* 重点案例 */
    .featured-case-card {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px;
    }
    
    /* 优势网格 */
    .advantages-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 25px;
    }
    
    /* 行业覆盖 */
    .industry-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 20px;
    }
}

/* 移动设备 (max-width: 768px) */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    /* 导航栏移动端 */
    .nav-links {
        position: fixed;
        top: 80px; /* 确保在固定导航栏下方 */
        left: 0;
        width: 100%;
        background: rgba(10, 15, 28, 0.98);
        backdrop-filter: blur(20px);
        border-top: 1px solid var(--border-color);
        transform: translateY(-100vh);
        transition: transform 0.3s ease;
        z-index: 9999; /* 提高z-index，但仍低于导航栏本身 */
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .nav-links ul {
        flex-direction: column;
        padding: 20px 0;
        gap: 0;
    }
    
    .nav-links li {
        width: 100%;
        text-align: center;
    }
    
    .nav-links a {
        display: block;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border-color);
    }
    
    .menu-toggle {
        display: block;
    }
    
    /* 英雄区域 */
    .hero-title {
        font-size: 32px;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
    
    /* 页面英雄区域 */
    .services-hero-section,
    .experience-hero-section,
    .cases-hero-section {
        padding: 100px 0 60px;
    }
    
    .services-hero-section .hero-title,
    .experience-hero-section .hero-title,
    .cases-hero-section .hero-title {
        font-size: 32px;
    }
    
    .services-hero-section .hero-subtitle,
    .experience-hero-section .hero-subtitle,
    .cases-hero-section .hero-subtitle {
        font-size: 16px;
    }
    
    /* 服务流程时间线（已用新实现，移除旧竖线） */
    .detailed-process-section {
        padding: 80px 0;
    }
    
    /* 移除 .process-timeline::before */
    
    .process-step {
        padding-left: 80px;
        margin-bottom: 60px;
    }
    
    .step-number {
        left: 0;
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .step-content {
        padding: 25px 20px;
        border: none !important;
        outline: none !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    
    .step-content h3 {
        font-size: 20px;
    }
    
    /* 搜索区域 */
    .search-section {
        padding: 40px 0;
    }
    
    .search-input {
        font-size: 16px; /* 防止iOS缩放 */
    }
    
    /* AI引擎可视化 */
    .ai-engine-section {
        padding: 80px 0;
    }
    
    .ai-engine-visualization {
        height: 400px;
    }
    
    .core-circle {
        width: 80px;
        height: 80px;
    }
    
    .core-text {
        font-size: 14px;
    }
    
    .node-circle {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
    
    .node-label {
        font-size: 10px;
        max-width: 60px;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    

    
    /* Demo网格 */
    .demo-list-section {
        padding: 80px 0;
    }
    
    .demo-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .demo-card {
        padding: 25px 20px;
    }
    
    .demo-header {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .demo-icon {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .demo-header h3 {
        font-size: 18px;
    }
    
    /* 案例标签 */
    .case-tabs-section {
        padding: 30px 0;
    }
    
    .case-tabs {
        gap: 10px;
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .case-tab {
        flex-shrink: 0;
        padding: 10px 16px;
        font-size: 12px;
    }
    
    /* 重点案例 */
    .featured-case-section {
        padding: 60px 0;
    }
    
    .featured-case-card {
        padding: 30px 20px;
        gap: 30px;
    }
    
    .case-title {
        font-size: 24px;
    }
    
    .case-section h3 {
        font-size: 18px;
    }
    
    .solution-item h4 {
        font-size: 14px;
    }
    
    .value-list {
        gap: 15px;
    }
    
    .value-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    /* 案例网格 */
    .cases-grid-section {
        padding: 60px 0;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .case-image-small {
        height: 180px;
    }
    
    .case-info {
        padding: 20px;
    }
    
    .case-info h3 {
        font-size: 18px;
    }
    
    .case-metrics {
        gap: 8px;
    }
    
    .metric {
        font-size: 11px;
    }
    
    /* 业务类型 */
    .business-types-section {
        padding: 80px 0;
    }
    
    .business-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .business-type {
        padding: 30px 20px;
    }
    
    .business-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .business-type h3 {
        font-size: 20px;
    }
    
    /* 服务优势 */
    .service-advantages-section {
        padding: 80px 0;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-item {
        padding: 30px 20px;
    }
    
    .advantage-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    .advantage-item h3 {
        font-size: 18px;
    }
    
    /* CTA区域 */
    .services-cta-section {
        padding: 80px 0;
    }
    
    .cta-content h2 {
        font-size: 28px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
    
    /* 客户证言 */
    .testimonials-section {
        padding: 80px 0;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .testimonial-card {
        padding: 25px 20px;
    }
    
    .author-avatar {
        width: 50px;
        height: 50px;
    }
    
    /* 行业覆盖 */
    .industry-coverage-section {
        padding: 80px 0;
    }
    
    .industry-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
    
    .industry-item {
        padding: 20px 10px;
        font-size: 12px;
    }
    
    .industry-item i {
        font-size: 24px;
    }
    
    /* Modal适配 */
    .demo-modal .modal-content {
        width: 95%;
        height: 90%;
        margin: 5% auto;
    }
    
    .modal-header {
        padding: 15px 20px;
    }
    
    .modal-header h3 {
        font-size: 18px;
    }
    
    .modal-body {
        padding: 0;
    }
    
    /* 通知系统 */
    .notification {
        left: 10px;
        right: 10px;
        max-width: none;
    }
    
    .notification-content {
        gap: 10px;
    }
    
    .notification-message {
        font-size: 13px;
    }
}

/* 小屏移动设备 (max-width: 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    /* 进一步缩小字体 */
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .services-hero-section .hero-title,
    .experience-hero-section .hero-title,
    .cases-hero-section .hero-title {
        font-size: 28px;
    }
    
    /* AI引擎进一步优化 */
    .ai-engine-visualization {
        height: 350px;
    }
    
    .ai-node {
        transform: scale(0.9);
    }
    
    /* 按钮样式 */
    .btn {
        padding: 14px 20px;
        font-size: 14px;
    }
    
    .btn-demo {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    /* 案例标签滚动 */
    .case-tabs {
        -webkit-overflow-scrolling: touch;
    }
    
    .case-tabs::-webkit-scrollbar {
        display: none;
    }
    
    /* 成就数字 */
    .achievement-item .number {
        font-size: 32px;
    }
    
    /* 服务卡片 */
    .service-item {
        padding: 25px 15px;
    }
    
    .service-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
    
    /* 合作伙伴网格 */
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .partner-item {
        padding: 20px 10px;
    }
    
    .partner-logo {
        height: 40px;
    }
    
    /* 页脚调整 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* 横屏模式优化 */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        min-height: 80vh;
    }
    
    .hero-container {
        min-height: 80vh;
        padding-top: 60px;
    }
    
    .services-hero-section,
    .experience-hero-section,
    .cases-hero-section {
        padding: 80px 0 40px;
    }
    
    .ai-engine-visualization {
        height: 300px;
    }
    
    section {
        padding: 60px 0;
    }
}

/* 高分辨率屏幕优化 */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 64px;
    }
    
    .section-title {
        font-size: 48px;
    }
    
    .demo-grid {
        grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    }
    
    .business-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    }
    
    .cases-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .footer,
    .btn,
    .demo-modal,
    .notification {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero-section {
        background: white !important;
        color: black !important;
        page-break-after: always;
    }
    
    section {
        padding: 20px 0;
        page-break-inside: avoid;
    }
}

/* 可访问性增强 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0066CC;
        --accent-color: #00FFFF;
        --text-light: #FFFFFF;
        --text-gray: #CCCCCC;
        --border-color: #666666;
        --card-bg: #333333;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
    
    .demo-card,
    .case-card,
    .business-type,
    .advantage-item {
        border: 2px solid var(--border-color);
    }
}

/* 暗色主题偏好 */
@media (prefers-color-scheme: light) {
    /* 如果用户偏好浅色主题，可在此添加对应样式 */
}