/* 基础样式复位与全局变量定义（宝蓝明艳风） */
        :root {
            --primary: #0F52BA;
            --primary-hover: #083D91;
            --primary-light: #E6EEF9;
            --accent: #00A8E8;
            --text-dark: #1E293B;
            --text-muted: #64748B;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --border-color: #E2E8F0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 15px -3px rgba(15, 82, 186, 0.1), 0 4px 6px -2px rgba(15, 82, 186, 0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-width: 1200px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
        }

        body {
            position: relative;
            overflow-x: hidden;
        }

        /* 统一容器规范 */
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .brand-name {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            align-items: center;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.925rem;
            transition: var(--transition);
            padding: 0.25rem 0.5rem;
            border-radius: 4px;
        }

        .nav-menu a:hover {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn {
            background-color: var(--primary);
            color: white !important;
            padding: 0.5rem 1.25rem !important;
            border-radius: 9999px;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .nav-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            border: none;
            background: none;
            padding: 0.5rem;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-dark);
            transition: var(--transition);
        }

        /* Hero 区域 (首屏 - 严禁包含任何图片) */
        .hero-section {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #F0F4FC 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        /* 纯 CSS 抽象科技背景装饰 */
        .hero-bg-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            pointer-events: none;
        }

        .shape {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.4;
        }

        .shape-1 {
            width: 400px;
            height: 400px;
            background-color: #BFDBFE;
            top: -100px;
            right: -100px;
            animation: floatShape 8s ease-in-out infinite alternate;
        }

        .shape-2 {
            width: 300px;
            height: 300px;
            background-color: #E0F2FE;
            bottom: -50px;
            left: -50px;
            animation: floatShape 12s ease-in-out infinite alternate-reverse;
        }

        @keyframes floatShape {
            0% { transform: translate(0, 0) scale(1); }
            100% { transform: translate(30px, 20px) scale(1.1); }
        }

        .hero-wrapper {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
            align-items: center;
        }

        .hero-content {
            text-align: left;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: var(--primary-light);
            color: var(--primary);
            padding: 0.35rem 1rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(15, 82, 186, 0.15);
        }

        .hero-title {
            font-size: 2.5rem;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 1.5rem;
        }

        .hero-title span {
            color: var(--primary);
            background: linear-gradient(120deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.125rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 600px;
        }

        .hero-btn-group {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 3rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.875rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
            text-decoration: none;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: white;
            box-shadow: 0 4px 14px rgba(15, 82, 186, 0.4);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 82, 186, 0.5);
        }

        .btn-secondary {
            background-color: var(--bg-white);
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 纯 CSS 科技视觉模块（首屏无图替代方案） */
        .hero-visual {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2rem;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .hero-visual::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            z-index: -1;
            border-radius: 18px;
            opacity: 0.2;
        }

        .visual-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 1rem;
            margin-bottom: 1.5rem;
        }

        .visual-dots {
            display: flex;
            gap: 6px;
        }

        .visual-dots span {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #E2E8F0;
        }

        .visual-dots span:nth-child(1) { background-color: #EF4444; }
        .visual-dots span:nth-child(2) { background-color: #F59E0B; }
        .visual-dots span:nth-child(3) { background-color: #10B981; }

        .visual-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
        }

        .visual-console {
            font-family: monospace;
            font-size: 0.875rem;
            color: #334155;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .console-line {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .console-prompt {
            color: var(--primary);
            font-weight: bold;
        }

        .console-cursor {
            width: 8px;
            height: 15px;
            background-color: var(--primary);
            animation: blink 1s step-end infinite;
        }

        @keyframes blink {
            50% { opacity: 0; }
        }

        .visual-model-list {
            margin-top: 1.5rem;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.5rem;
        }

        .model-chip {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 0.4rem 0.5rem;
            font-size: 0.75rem;
            font-weight: 500;
            border-radius: 6px;
            text-align: center;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .model-chip:hover {
            border-color: var(--primary);
            background-color: var(--primary-light);
            color: var(--primary);
        }

        /* 基础 Section 布局 */
        section {
            padding: 80px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-subtitle {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            margin-bottom: 0.75rem;
            display: block;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .section-desc {
            margin-top: 1rem;
            color: var(--text-muted);
            font-size: 1rem;
        }

        /* 2. 关于我们 */
        .about-section {
            background-color: var(--bg-white);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .about-info h3 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 1.25rem;
        }

        .about-info p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
            font-size: 1rem;
        }

        .about-features {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-top: 2rem;
        }

        .about-features li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 600;
            color: var(--text-dark);
            font-size: 0.95rem;
        }

        .about-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: 900;
            background-color: var(--primary-light);
            width: 22px;
            height: 22px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 0.75rem;
        }

        /* 数据指标卡片 (放在关于我们右侧) */
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .stat-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 2rem;
            border-radius: 12px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 3. 全平台AIGC服务 */
        .services-section {
            background-color: var(--bg-light);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2.5rem 2rem;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .service-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            flex-grow: 1;
            margin-bottom: 1.5rem;
        }

        .service-card-link {
            font-size: 0.875rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            transition: var(--transition);
        }

        .service-card-link:hover {
            gap: 0.5rem;
        }

        /* 标签云 - 聚合模型展示 */
        .tags-wrapper {
            margin-top: 4rem;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2.5rem;
            text-align: center;
        }

        .tags-title {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--text-dark);
        }

        .tags-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
        }

        .tag-item {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-muted);
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            transition: var(--transition);
        }

        .tag-item:hover {
            color: white;
            background-color: var(--primary);
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* 4. 一站式AIGC制作 & 5. 全行业解决方案 */
        .production-section {
            background-color: var(--bg-white);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .solution-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2.5rem;
            transition: var(--transition);
        }

        .solution-card:hover {
            background-color: var(--bg-white);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }

        .solution-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            background-color: var(--primary-light);
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 1rem;
        }

        .solution-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .solution-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }

        .solution-bullets {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .solution-bullets li {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--text-dark);
            font-weight: 500;
        }

        .solution-bullets li::before {
            content: '●';
            color: var(--primary);
            font-size: 0.75rem;
        }

        /* 6. 全国服务网络 */
        .network-section {
            background-color: var(--bg-light);
            text-align: center;
        }

        .network-container {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 3rem;
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 3rem;
            align-items: center;
            text-align: left;
        }

        .network-info h3 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .network-info p {
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        .network-locations {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .location-item {
            border-left: 3px solid var(--primary);
            padding-left: 1rem;
        }

        .location-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.25rem;
        }

        .location-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 服务区域的动态线条或示意图区域（纯CSS绘制） */
        .network-map-placeholder {
            background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
            border: 1px dashed var(--border-color);
            border-radius: 12px;
            height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .network-pulse {
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: var(--primary);
            border-radius: 50%;
        }

        .network-pulse::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: var(--primary);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); opacity: 1; }
            100% { transform: scale(4); opacity: 0; }
        }

        .p1 { top: 30%; left: 40%; }
        .p2 { top: 60%; left: 70%; }
        .p3 { top: 45%; left: 20%; }

        /* 7. 标准化AIGC流程 & 8. 技术标准 */
        .process-section {
            background-color: var(--bg-white);
        }

        .timeline {
            position: relative;
            max-width: 900px;
            margin: 3rem auto 0;
            padding: 1rem 0;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--border-color);
            transform: translateX(-50%);
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 2rem;
            box-sizing: border-box;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
            padding-right: 3rem;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
            padding-left: 3rem;
        }

        .timeline-dot {
            position: absolute;
            top: 2.5rem;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--primary);
            border: 4px solid var(--bg-white);
            box-shadow: 0 0 0 4px var(--primary-light);
            z-index: 2;
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            right: -8px;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
        }

        .timeline-content {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            border-radius: 12px;
            transition: var(--transition);
        }

        .timeline-content:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .timeline-content h3 {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--primary);
        }

        .timeline-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 9. 客户案例中心 */
        .cases-section {
            background-color: var(--bg-light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .case-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            transform: translateY(-6px);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
        }

        .case-img-container {
            width: 100%;
            position: relative;
            overflow: hidden;
            display: block;
        }

        .case-img-container img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 2rem;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .case-tag {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.75rem;
            display: inline-block;
        }

        .case-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-dark);
        }

        .case-desc {
            font-size: 0.925rem;
            color: var(--text-muted);
            flex-grow: 1;
            margin-bottom: 1.5rem;
        }

        .case-stats {
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 1rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
        }

        /* 10. 对比评测 */
        .comparison-section {
            background-color: var(--bg-white);
        }

        .rating-badge {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: white;
            padding: 2rem;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 800px;
            margin: 0 auto 3rem;
            box-shadow: var(--shadow-lg);
        }

        .rating-info {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .rating-stars {
            color: #FBBF24;
            font-size: 1.5rem;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            background-color: var(--bg-white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .comparison-table th, .comparison-table td {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: var(--bg-light);
            font-weight: 700;
            color: var(--text-dark);
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table td strong {
            color: var(--primary);
        }

        .comparison-table td.highlight {
            background-color: var(--primary-light);
            font-weight: 600;
        }

        /* 12. Token比价参考 */
        .pricing-section {
            background-color: var(--bg-light);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .pricing-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .pricing-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            position: relative;
            transform: scale(1.03);
        }

        .pricing-card.featured::before {
            content: '性价比首选';
            position: absolute;
            top: 12px;
            right: 12px;
            background-color: var(--primary);
            color: white;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
        }

        .pricing-header h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .pricing-model-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .pricing-price {
            margin-bottom: 1.5rem;
        }

        .price-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
        }

        .price-unit {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .pricing-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-bottom: 2rem;
            flex-grow: 1;
        }

        .pricing-features li {
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .pricing-features li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        /* 13. 职业技术培训 & 14. 人工智能培训 */
        .training-section {
            background-color: var(--bg-white);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .training-card {
            border: 1px solid var(--border-color);
            background-color: var(--bg-light);
            padding: 2rem 1.5rem;
            border-radius: 12px;
            text-align: center;
            transition: var(--transition);
        }

        .training-card:hover {
            background-color: var(--bg-white);
            border-color: var(--primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .training-icon {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.25rem;
            font-weight: 700;
        }

        .training-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .training-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 6条用户评论 */
        .reviews-section {
            background-color: var(--bg-light);
        }

        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .review-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
        }

        .review-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 1.5rem;
            font-style: italic;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 1rem;
            border-top: 1px solid var(--border-color);
            padding-top: 1rem;
        }

        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .author-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 0.15rem;
        }

        .author-info p {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 15/16. FAQ 折叠面板 */
        .faq-section {
            background-color: var(--bg-white);
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-color);
            margin-bottom: 1rem;
            border-radius: 8px;
            overflow: hidden;
            background-color: var(--bg-light);
        }

        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            transition: var(--transition);
        }

        .faq-question:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .faq-question::after {
            content: '+';
            font-size: 1.25rem;
            font-weight: bold;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--bg-white);
        }

        .faq-answer-inner {
            padding: 1.25rem 1.5rem;
            font-size: 0.925rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
        }

        /* 17. 常见问题自助排查 & 18. AI术语百科 */
        .troubleshooting-section {
            background-color: var(--bg-light);
        }

        .trouble-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 3rem;
        }

        .trouble-panel {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2.5rem;
        }

        .trouble-panel h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .step-list {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .step-item {
            display: flex;
            gap: 1rem;
        }

        .step-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.875rem;
        }

        .step-content h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }

        .step-content p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .glossary-panel {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2.5rem;
        }

        .glossary-panel h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .glossary-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .glossary-item dt {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.95rem;
            margin-bottom: 0.25rem;
        }

        .glossary-item dd {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-left: 0;
            padding-bottom: 0.75rem;
            border-bottom: 1px dashed var(--border-color);
        }

        .glossary-item:last-child dd {
            border-bottom: none;
            padding-bottom: 0;
        }

        /* 19. 行业资讯 / 知识库 */
        .news-section {
            background-color: var(--bg-white);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .news-card {
            background-color: var(--bg-light);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
        }

        .news-card:hover {
            background-color: var(--bg-white);
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .news-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
            line-height: 1.4;
        }

        .news-summary {
            font-size: 0.875rem;
            color: var(--text-muted);
            flex-grow: 1;
            margin-bottom: 1.5rem;
        }

        .news-more {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        /* 21. 加盟代理 (转化型模块) */
        .agent-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: white;
            text-align: center;
        }

        .agent-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .agent-section .section-title {
            color: white;
        }

        .agent-section .section-desc {
            color: rgba(255,255,255,0.85);
            margin-bottom: 2.5rem;
        }

        .agent-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-bottom: 3rem;
        }

        .agent-feat-item {
            background-color: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            padding: 1.5rem;
            border-radius: 12px;
            backdrop-filter: blur(5px);
        }

        .agent-feat-title {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }

        .agent-feat-desc {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.8);
        }

        .agent-btn {
            background-color: white;
            color: var(--primary);
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(0,0,0,0.2);
        }

        .agent-btn:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 11. 智能需求匹配 & 20. 联系我们 (表单模块) */
        .contact-section {
            background-color: var(--bg-light);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 3.5rem;
            align-items: stretch;
        }

        .contact-info {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 3rem;
            border-radius: 16px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-info h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .contact-methods {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-bottom: 2.5rem;
        }

        .method-item {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .method-icon {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .method-text {
            font-size: 0.95rem;
        }

        .method-text strong {
            display: block;
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* 客服二维码区 */
        .qr-area {
            border-top: 1px solid var(--border-color);
            padding-top: 2rem;
            text-align: center;
        }

        .qr-container {
            display: inline-block;
            border: 1px solid var(--border-color);
            padding: 0.5rem;
            background-color: var(--bg-white);
            border-radius: 8px;
            margin-bottom: 0.75rem;
        }

        .qr-container img {
            width: 130px;
            height: 130px;
            display: block;
        }

        .qr-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        /* 表单样式 */
        .form-panel {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 3rem;
            box-shadow: var(--shadow-sm);
        }

        .form-panel h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
            margin-bottom: 1.25rem;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-dark);
        }

        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
            transition: var(--transition);
            background-color: var(--bg-light);
        }

        .form-input:focus, .form-select:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .form-textarea {
            resize: vertical;
            min-height: 120px;
        }

        .form-btn {
            width: 100%;
            background-color: var(--primary);
            color: white;
            font-weight: 700;
            padding: 0.875rem;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .form-btn:hover {
            background-color: var(--primary-hover);
        }

        /* 悬浮客服面板 */
        .float-kefu {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            text-decoration: none;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
            background-color: var(--primary-hover);
        }

        .float-btn-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 10px;
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 140px;
        }

        .float-btn-qr img {
            width: 120px;
            height: 120px;
            display: block;
            margin-bottom: 5px;
        }

        .float-btn-qr span {
            font-size: 0.75rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        .float-btn:hover .float-btn-qr {
            display: block;
        }

        /* 页脚与友情链接 */
        footer {
            background-color: #0F172A;
            color: #94A3B8;
            padding: 60px 0 30px;
            border-top: 1px solid #1E293B;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 4rem;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: white;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.6;
        }

        .footer-links h4 {
            color: white;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-links a {
            color: #94A3B8;
            text-decoration: none;
            font-size: 0.875rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: white;
        }

        .friend-links-wrapper {
            grid-column: span 3;
            border-top: 1px solid #1E293B;
            padding-top: 30px;
        }

        .friend-links-title {
            color: white;
            font-size: 0.875rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .friend-links-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .friend-links-list a {
            color: #64748B;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .friend-links-list a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: #64748B;
        }

        .ai-page-home-link {
            color: #94A3B8;
            text-decoration: none;
            margin-right: 15px;
        }

        .ai-page-home-link:hover {
            color: white;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .hero-wrapper {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-content {
                text-align: center;
            }
            .hero-btn-group {
                justify-content: center;
            }
            .hero-desc {
                margin-left: auto;
                margin-right: auto;
            }
            .about-grid, .network-container, .trouble-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .friend-links-wrapper {
                grid-column: span 1;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 1.5rem;
                box-shadow: var(--shadow-md);
                gap: 1rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 3rem !important;
                padding-right: 0 !important;
                text-align: left !important;
            }
            .timeline-item:nth-child(odd) .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 12px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .agent-features {
                grid-template-columns: 1fr;
            }
        }