/* CSS Reset & Variables */
        :root {
            --bg-color: #080510;
            --card-bg: rgba(18, 12, 34, 0.85);
            --border-color: rgba(255, 0, 127, 0.15);
            --border-hover: rgba(191, 85, 236, 0.4);
            --text-main: #f3f0f7;
            --text-muted: #a39cb4;
            --primary: #ff007f;
            --secondary: #bf55ec;
            --accent: #00ffff;
            --grad-primary: linear-gradient(135deg, #ff007f 0%, #7b2cbf 100%);
            --grad-cyber: linear-gradient(90deg, #ff007f, #bf55ec, #00ffff);
            --transition: all 0.3s ease;
            --container-max: 1200px;
        }

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

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Utility Layouts */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            background: var(--grad-cyber);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
            margin-bottom: 10px;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        a {
            color: var(--text-main);
            text-decoration: none;
            transition: var(--transition);
        }

        /* Cyber Glow Elements */
        .glow-effect {
            box-shadow: 0 0 20px rgba(255, 0, 127, 0.1);
        }
        .glow-effect:hover {
            box-shadow: 0 0 30px rgba(191, 85, 236, 0.3);
        }

        /* Navigation Header */
        header {
            background: rgba(8, 5, 16, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: 70px;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            width: auto;
        }

        .logo-text {
            font-weight: 800;
            font-size: 1.3rem;
            background: var(--grad-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav.desktop-menu {
            display: flex;
            gap: 20px;
        }

        nav.desktop-menu a {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

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

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 20px;
            border-radius: 5px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-primary {
            background: var(--grad-primary);
            color: #fff;
            border: none;
        }

        .btn-primary:hover {
            opacity: 0.9;
            transform: translateY(-2px);
        }

        .btn-outline {
            border: 1px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(255, 0, 127, 0.1);
            transform: translateY(-2px);
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* Mobile Navigation Overlay */
        .mobile-overlay {
            position: fixed;
            top: 70px;
            left: -100%;
            width: 100%;
            height: calc(100vh - 70px);
            background: rgba(8, 5, 16, 0.98);
            z-index: 999;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            padding: 40px 20px;
            gap: 20px;
            overflow-y: auto;
        }

        .mobile-overlay.active {
            left: 0;
        }

        .mobile-overlay a {
            font-size: 1.2rem;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* 1. Hero Section (No Image) */
        .hero {
            padding-top: 150px;
            padding-bottom: 100px;
            text-align: center;
            background: radial-gradient(circle at center, rgba(123, 44, 191, 0.15) 0%, rgba(8, 5, 16, 0) 70%);
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid rgba(255, 0, 127, 0.3);
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--primary);
            margin-bottom: 25px;
            letter-spacing: 1px;
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 25px;
            background: var(--grad-cyber);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        .hero p.lead {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 2. About Section */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--accent);
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .about-visual {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .about-visual::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(transparent, var(--primary), transparent, var(--accent), transparent);
            animation: rotateGlow 8s linear infinite;
            z-index: 1;
        }

        .about-visual-inner {
            position: relative;
            background: var(--bg-color);
            padding: 30px;
            border-radius: 8px;
            z-index: 2;
            text-align: center;
        }

        @keyframes rotateGlow {
            100% { transform: rotate(360deg); }
        }

        /* 3. Services Section & 4. Production */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
        }

        .service-card:hover {
            border-color: var(--border-hover);
            transform: translateY(-5px);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--accent);
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: #fff;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Model Badges Block */
        .models-marquee {
            margin-top: 50px;
            padding: 20px 0;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 10px;
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 15px;
        }

        .model-tag {
            background: rgba(191, 85, 236, 0.15);
            border: 1px solid rgba(191, 85, 236, 0.3);
            color: #e5bfff;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* 5. Solutions & 6. Service Network */
        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .tab-btn {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-muted);
            padding: 10px 20px;
            border-radius: 5px;
            cursor: pointer;
            transition: var(--transition);
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--grad-primary);
            color: #fff;
            border-color: transparent;
        }

        .solution-content {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 40px;
        }

        .network-map {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .network-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .network-item {
            padding: 15px;
            background: rgba(255, 255, 255, 0.03);
            border-left: 3px solid var(--accent);
            border-radius: 0 8px 8px 0;
        }

        /* 7. Workflow & 8. Technical Standards */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 30px;
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 20px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(255, 255, 255, 0.1);
        }

        .timeline-step {
            display: flex;
            gap: 30px;
            position: relative;
            padding-left: 50px;
        }

        .timeline-badge {
            position: absolute;
            left: 0;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--grad-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            box-shadow: 0 0 15px var(--primary);
        }

        .timeline-content {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 20px;
            border-radius: 10px;
            flex: 1;
        }

        /* 9. Cases (Image Showcase) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-hover);
        }

        .case-img-wrap {
            width: 100%;
            height: 220px;
            overflow: hidden;
            position: relative;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

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

        .case-info {
            padding: 25px;
        }

        .case-info h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: #fff;
        }

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

        /* 10. Evaluation (对比评测) */
        .evaluation-summary {
            text-align: center;
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.1) 0%, rgba(191, 85, 236, 0.1) 100%);
            border: 1px solid var(--border-hover);
            padding: 40px;
            border-radius: 15px;
            margin-bottom: 40px;
        }

        .score-box {
            font-size: 4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 10px;
        }

        .stars-box {
            color: #f39c12;
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .table-responsive {
            overflow-x: auto;
            border-radius: 10px;
            border: 1px solid var(--border-color);
        }

        table.cyber-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: var(--card-bg);
            min-width: 600px;
        }

        table.cyber-table th, table.cyber-table td {
            padding: 18px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        table.cyber-table th {
            background: rgba(255, 255, 255, 0.02);
            color: var(--accent);
            font-weight: 600;
        }

        table.cyber-table tr:hover {
            background: rgba(255, 255, 255, 0.01);
        }

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

        /* 11. Matching (需求匹配表单) */
        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 15px;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: rgba(8, 5, 16, 0.6);
            border: 1px solid var(--border-color);
            border-radius: 5px;
            color: #fff;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
        }

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

        /* 13/14. Trainings */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .training-card {
            background: linear-gradient(180deg, var(--card-bg) 0%, rgba(20, 10, 45, 0.5) 100%);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 30px;
            position: relative;
            overflow: hidden;
        }

        .training-card::after {
            content: '工信部认证';
            position: absolute;
            top: 15px;
            right: -30px;
            background: var(--accent);
            color: #000;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 30px;
            transform: rotate(45deg);
        }

        .training-card h3 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: #fff;
        }

        /* 15/16. FAQ Section (Accordion) */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-header {
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-header h3 {
            font-size: 1.05rem;
            color: #fff;
            margin: 0;
            padding-right: 20px;
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--accent);
            transition: var(--transition);
        }

        .faq-body {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-body {
            padding: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        /* User Testimonials */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-style: italic;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .user-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--grad-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
        }

        .user-meta h4 {
            font-size: 0.95rem;
            margin: 0;
        }

        .user-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 18. AI Dictionary (术语百科) */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .glossary-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
        }

        .glossary-card h4 {
            color: var(--accent);
            margin-bottom: 10px;
        }

        /* 19. Articles List */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            padding: 25px;
            border-radius: 10px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .article-card .btn-link {
            color: var(--accent);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.9rem;
        }

        /* Footer & Contact info */
        footer {
            background: #04020a;
            border-top: 1px solid var(--border-color);
            padding: 60px 0 20px;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .contact-box {
            display: flex;
            flex-direction: column;
            gap: 12px;
            font-size: 0.9rem;
        }

        .qrcode-area {
            display: flex;
            gap: 15px;
            align-items: center;
            margin-top: 15px;
        }

        .qrcode-area img {
            width: 90px;
            height: 90px;
            border-radius: 5px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .friend-links {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
        }

        .friend-links a {
            color: var(--text-muted);
            margin-right: 15px;
        }

        .friend-links a:hover {
            color: var(--accent);
        }

        .copyright-bar {
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            margin-top: 20px;
            font-size: 0.8rem;
        }

        /* Floating Widgets */
        .floating-widgets {
            position: fixed;
            right: 25px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 998;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--grad-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--card-bg);
            border: 1px solid var(--border-hover);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            display: none;
            flex-direction: column;
            align-items: center;
            width: 140px;
        }

        .qr-popover img {
            width: 110px;
            height: 110px;
            margin-bottom: 8px;
        }

        .qr-popover span {
            font-size: 0.75rem;
            color: var(--text-main);
            text-align: center;
        }

        .float-btn:hover .qr-popover {
            display: flex;
        }

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .about-grid, .network-map {
                grid-template-columns: 1fr;
            }

            nav.desktop-menu, .nav-btn-group .btn-outline {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p.lead {
                font-size: 1rem;
            }

            section {
                padding: 60px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }