:root {
            --bg-dark: #070913;
            --bg-card: #111424;
            --bg-nav: rgba(7, 9, 19, 0.95);
            --neon-green: #39ff14;
            --neon-blue: #00f0ff;
            --neon-purple: #bd00ff;
            --text-light: #f3f4f6;
            --text-muted: #9ca3af;
            --border-neon: rgba(0, 240, 255, 0.15);
            --font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            --container-max: 1200px;
        }

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

        body {
            background-color: var(--bg-dark);
            color: var(--text-light);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* Neon glow classes */
        .glow-text-cyan {
            color: var(--neon-blue);
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
        }
        .glow-text-green {
            color: var(--neon-green);
            text-shadow: 0 0 10px rgba(57, 255, 20, 0.5);
        }
        .glow-text-purple {
            color: var(--neon-purple);
            text-shadow: 0 0 10px rgba(189, 0, 255, 0.5);
        }

        /* Buttons */
        .btn-neon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
            color: #000;
            font-weight: 700;
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            transition: all 0.3s ease;
            text-transform: uppercase;
        }
        .btn-neon:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
            background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--neon-blue);
            border: 2px solid var(--neon-blue);
            padding: 10px 28px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.2);
            transition: all 0.3s ease;
        }
        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transform: translateY(-2px);
        }

        /* Header / Navbar */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: var(--bg-nav);
            border-bottom: 1px solid var(--border-neon);
            z-index: 1000;
            backdrop-filter: blur(10px);
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo-box {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .ai-page-logo {
            height: 40px;
            width: auto;
        }
        .brand-name {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--neon-blue), var(--neon-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .nav-links {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .nav-links a, .ai-page-home-link {
            color: var(--text-light);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-links a:hover, .ai-page-home-link:hover {
            color: var(--neon-blue);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--neon-blue);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Main structure */
        main {
            padding-top: 70px;
        }

        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-neon);
            position: relative;
        }
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            letter-spacing: 1px;
        }
        .section-header p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1rem;
        }

        /* 1. Hero Area (NO IMAGES AS PER INSTRUCTIONS) */
        #hero {
            background: radial-gradient(circle at 50% 50%, #151030 0%, var(--bg-dark) 70%);
            min-height: calc(100vh - 70px);
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 100px 0;
        }
        .hero-content h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-green), var(--neon-purple));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        .tag-pill {
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid var(--neon-blue);
            color: var(--neon-blue);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            backdrop-filter: blur(5px);
        }

        /* 2. About Us */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--neon-blue);
        }
        .about-text p {
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .about-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 30px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.05);
            transition: transform 0.3s ease;
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-green);
        }
        .stat-val {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--neon-green), var(--neon-blue));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        /* 3. AIGC Services & Platform */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 30px;
            border-radius: 12px;
            transition: all 0.3s ease;
        }
        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-purple);
            box-shadow: 0 0 15px rgba(189, 0, 255, 0.2);
        }
        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--neon-blue);
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Model tags cloud */
        .model-cloud {
            margin-top: 50px;
            background: rgba(17, 20, 36, 0.6);
            border: 1px solid var(--border-neon);
            padding: 30px;
            border-radius: 15px;
            text-align: center;
        }
        .model-cloud h4 {
            margin-bottom: 20px;
            color: var(--text-light);
        }
        .model-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }
        .model-tag {
            background: rgba(255, 255, 255, 0.05);
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            color: var(--text-muted);
            border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.2s;
        }
        .model-tag:hover {
            color: var(--neon-green);
            border-color: var(--neon-green);
            background: rgba(57, 255, 20, 0.05);
        }

        /* 4. AIGC Workflow */
        .workflow-timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            position: relative;
        }
        .flow-step {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 25px;
            border-radius: 10px;
            position: relative;
            z-index: 2;
        }
        .flow-num {
            position: absolute;
            top: -15px;
            right: 15px;
            font-size: 3rem;
            font-weight: 900;
            color: rgba(0, 240, 255, 0.1);
        }
        .flow-step h3 {
            margin-bottom: 10px;
            color: var(--neon-blue);
        }
        .flow-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 5. Solutions */
        .solutions-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .solution-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 30px;
            border-radius: 12px;
            display: flex;
            gap: 20px;
        }
        .solution-icon {
            font-size: 2rem;
            color: var(--neon-green);
            flex-shrink: 0;
        }
        .solution-content h3 {
            margin-bottom: 10px;
        }
        .solution-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
        }

        /* 6. Service Network & 7. Standard Flow */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .flow-list {
            list-style: none;
        }
        .flow-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 20px;
        }
        .flow-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            color: var(--neon-green);
            font-weight: bold;
        }

        /* 8. Technical Standards */
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .standard-card {
            background: var(--bg-card);
            padding: 25px;
            border-radius: 8px;
            border-left: 4px solid var(--neon-purple);
            text-align: left;
        }
        .standard-card h4 {
            color: var(--neon-blue);
            margin-bottom: 10px;
        }
        .standard-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 9. Case Center */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }
        .case-card {
            background: var(--bg-card);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-neon);
            transition: transform 0.3s;
        }
        .case-card:hover {
            transform: scale(1.02);
            border-color: var(--neon-blue);
        }
        .case-img-wrap {
            height: 200px;
            overflow: hidden;
            background: #1f2937;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-info {
            padding: 20px;
        }
        .case-tag {
            background: rgba(189, 0, 255, 0.1);
            border: 1px solid var(--neon-purple);
            color: var(--neon-purple);
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 0.8rem;
            display: inline-block;
            margin-bottom: 10px;
        }
        .case-info h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 10. PK Evaluation Section */
        .pk-box {
            background: linear-gradient(135deg, rgba(17, 20, 36, 0.8) 0%, rgba(7, 9, 19, 0.9) 100%);
            border: 2px solid var(--neon-blue);
            border-radius: 20px;
            padding: 40px;
            margin-top: 30px;
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
        }
        .pk-badge {
            display: inline-block;
            background: linear-gradient(90deg, var(--neon-purple), var(--neon-blue));
            color: #000;
            font-weight: 800;
            padding: 8px 20px;
            border-radius: 20px;
            margin-bottom: 25px;
        }
        .score-display {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            margin-bottom: 35px;
            background: rgba(255, 255, 255, 0.03);
            padding: 20px;
            border-radius: 12px;
        }
        .score-num {
            font-size: 4rem;
            font-weight: 900;
            color: var(--neon-green);
        }
        .score-stars {
            color: #ffb800;
            font-size: 2rem;
        }
        .pk-table-container {
            overflow-x: auto;
        }
        .pk-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }
        .pk-table th, .pk-table td {
            padding: 15px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .pk-table th {
            background: rgba(0, 240, 255, 0.05);
            color: var(--neon-blue);
        }
        .pk-table tr:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .better-value {
            color: var(--neon-green);
            font-weight: bold;
        }

        /* 11. Match Form */
        .form-wrap {
            max-width: 700px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 40px;
            border-radius: 15px;
            box-shadow: 0 4px 30px rgba(0,0,0,0.3);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .form-control {
            width: 100%;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid var(--border-neon);
            border-radius: 6px;
            padding: 12px;
            color: var(--text-light);
            outline: none;
            transition: border-color 0.3s;
        }
        .form-control:focus {
            border-color: var(--neon-blue);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }
        textarea.form-control {
            height: 120px;
            resize: vertical;
        }

        /* 12. Token Price Comparison */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .price-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            position: relative;
        }
        .price-card.hot {
            border-color: var(--neon-green);
        }
        .price-card.hot::after {
            content: '推荐';
            position: absolute;
            top: 10px;
            right: 10px;
            background: var(--neon-green);
            color: #000;
            font-size: 0.75rem;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: bold;
        }
        .price-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--neon-green);
            margin: 15px 0;
        }
        .price-features {
            list-style: none;
            margin: 20px 0;
            padding: 0;
        }
        .price-features li {
            padding: 8px 0;
            color: var(--text-muted);
            border-bottom: 1px dashed rgba(255,255,255,0.05);
            font-size: 0.9rem;
        }

        /* 13. Training */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }
        .training-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .training-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 20px;
            border-radius: 8px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .training-info h4 {
            color: var(--neon-blue);
            margin-bottom: 5px;
        }
        .training-info p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .badge-cert {
            background: rgba(57, 255, 20, 0.15);
            border: 1px solid var(--neon-green);
            color: var(--neon-green);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
        }

        /* 14. Customer Testimonials */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 30px;
            border-radius: 12px;
            position: relative;
        }
        .review-quote {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            font-style: italic;
        }
        .review-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .user-avatar {
            width: 45px;
            height: 45px;
            background: #2e3553;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--neon-blue);
        }
        .user-meta h4 {
            font-size: 0.95rem;
        }
        .user-meta p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 15. FAQ Section (Accordion) */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid var(--border-neon);
            background: var(--bg-card);
            margin-bottom: 12px;
            border-radius: 8px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            color: var(--text-light);
            text-align: left;
            padding: 18px 25px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            outline: none;
        }
        .faq-question:hover {
            color: var(--neon-blue);
        }
        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--neon-green);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(0,0,0,0.2);
        }
        .faq-answer-content {
            padding: 20px 25px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 16. Trouble Shooting & 17. Tech Terms */
        .support-panels {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .support-box {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 30px;
            border-radius: 12px;
        }
        .support-box h3 {
            color: var(--neon-blue);
            margin-bottom: 20px;
        }
        .check-list {
            list-style: none;
        }
        .check-list li {
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            display: flex;
            justify-content: space-between;
        }
        .check-list span {
            color: var(--text-muted);
        }
        .check-status {
            color: var(--neon-green);
        }

        /* 18. Articles / Knowledge Base */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 10px;
            padding: 25px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: transform 0.3s;
        }
        .article-card:hover {
            transform: translateY(-5px);
            border-color: var(--neon-green);
        }
        .article-card h3 {
            font-size: 1.15rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }
        .article-card a {
            color: var(--neon-blue);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-card a:hover {
            text-decoration: underline;
        }

        /* 19. Contact Us */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
            align-items: center;
        }
        .contact-info-list {
            list-style: none;
        }
        .contact-info-list li {
            margin-bottom: 25px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }
        .contact-info-list h4 {
            color: var(--neon-blue);
            margin-bottom: 5px;
        }
        .contact-info-list p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .contact-visual {
            display: flex;
            gap: 30px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.02);
            padding: 30px;
            border-radius: 12px;
            border: 1px dashed var(--border-neon);
        }
        .qr-box {
            text-align: center;
        }
        .qr-box img {
            width: 140px;
            height: 140px;
            border-radius: 8px;
            border: 4px solid #fff;
            margin-bottom: 10px;
        }
        .qr-box p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* 20. Footer */
        footer {
            background: #04050a;
            border-top: 1px solid var(--border-neon);
            padding: 60px 0 30px 0;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: var(--text-light);
            margin-bottom: 20px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: var(--neon-blue);
        }
        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 15px;
            margin-top: 15px;
        }
        .friendship-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.85rem;
        }
        .friendship-links a:hover {
            color: var(--neon-green);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
        }

        /* Floating Sidebar */
        .floating-sidebar {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .float-item {
            width: 50px;
            height: 50px;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon-blue);
            text-decoration: none;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
            transition: all 0.3s;
            cursor: pointer;
            position: relative;
        }
        .float-item:hover {
            background: var(--neon-blue);
            color: #000;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
            transform: scale(1.1);
        }
        .float-item .popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 15px;
            border-radius: 8px;
            display: none;
            box-shadow: 0 0 15px rgba(0,0,0,0.5);
            text-align: center;
            width: 160px;
        }
        .float-item .popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 5px;
        }
        .float-item .popover p {
            font-size: 0.75rem;
            color: var(--text-light);
        }
        .float-item:hover .popover {
            display: block;
        }

        /* Responsiveness */
        @media (max-width: 992px) {
            .about-grid, .solutions-grid, .network-grid, .training-grid, .support-panels, .contact-grid {
                grid-template-columns: 1fr;
            }
            .standards-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-nav);
                border-bottom: 1px solid var(--border-neon);
                padding: 20px;
                gap: 15px;
            }
            .nav-links.active {
                display: flex;
            }
            .nav-toggle {
                display: block;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .standards-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .form-row {
                grid-template-columns: 1fr;
            }
            .contact-visual {
                flex-direction: column;
            }
        }