:root {
            --primary: #FFD600;
            --primary-hover: #E5C000;
            --dark-bg: #121212;
            --dark-card: #1E1E1E;
            --light-bg: #F8F9FA;
            --light-card: #FFFFFF;
            --text-dark: #1F2937;
            --text-light: #F3F4F6;
            --text-muted: #6B7280;
            --border-color: #E5E7EB;
            --max-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            overflow-x: hidden;
        }

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

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 800;
            line-height: 1.3;
        }
        h2 {
            font-size: 2rem;
            margin-bottom: 15px;
            text-align: center;
            position: relative;
            padding-bottom: 12px;
        }
        h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }
        p {
            margin-bottom: 15px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: 30px;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #000;
            box-shadow: 0 4px 14px rgba(255, 214, 0, 0.4);
        }
        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 214, 0, 0.6);
        }
        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }
        .btn-outline:hover {
            background-color: var(--primary);
            color: #000;
            transform: translateY(-2px);
        }
        .btn-dark {
            background-color: var(--dark-bg);
            color: #fff;
        }
        .btn-dark:hover {
            background-color: #333;
            transform: translateY(-2px);
        }

        /* Header Navigation */
        header {
            background-color: rgba(18, 18, 18, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 2px solid var(--primary);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .ai-page-logo {
            height: 45px;
            width: auto;
        }
        .logo-text {
            color: #fff;
            font-size: 1.4rem;
            font-weight: 900;
        }
        .logo-text span {
            color: var(--primary);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 20px;
            align-items: center;
        }
        nav a {
            color: #ccc;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            padding: 8px 12px;
            border-radius: 4px;
        }
        nav a:hover, nav a.active {
            color: var(--primary);
        }
        .ai-page-home-link {
            background: rgba(255, 214, 0, 0.1);
            border: 1px solid var(--primary);
            color: var(--primary) !important;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: #fff;
            transition: var(--transition);
        }

        /* Section Layouts */
        section {
            padding: 90px 0;
            position: relative;
        }
        .section-desc {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px auto;
            color: var(--text-muted);
            font-size: 1.1rem;
        }

        /* 1. Hero Section (NO IMAGE - PURE CSS & GEOMETRIC & GRADIENT) */
        .hero {
            background: radial-gradient(circle at 80% 20%, rgba(255, 214, 0, 0.15) 0%, transparent 50%), linear-gradient(135deg, #0b0b0b 0%, #1a1a1a 100%);
            color: #fff;
            padding-top: 180px;
            padding-bottom: 120px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 0);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .hero-tag {
            display: inline-block;
            background: var(--primary);
            color: #000;
            padding: 6px 16px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.9rem;
            margin-bottom: 25px;
            letter-spacing: 1px;
            box-shadow: 0 4px 10px rgba(255, 214, 0, 0.3);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }
        .hero h1 {
            font-size: 3rem;
            max-width: 900px;
            margin: 0 auto 25px auto;
            color: #fff;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        .hero h1 span {
            color: var(--primary);
        }
        .hero p.lead {
            font-size: 1.25rem;
            max-width: 750px;
            margin: 0 auto 40px auto;
            color: #ccc;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        /* 2. About Us Section */
        .about {
            background-color: #fff;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .about-content h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--dark-bg);
        }
        .about-badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 25px;
        }
        .about-badge {
            background-color: rgba(255, 214, 0, 0.1);
            color: #b38600;
            border: 1px solid rgba(255, 214, 0, 0.3);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
        }

        /* 3. AIGC Service System */
        .services {
            background-color: var(--light-bg);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .service-card {
            background-color: var(--light-card);
            border-radius: 12px;
            padding: 35px 25px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            transition: var(--transition);
            border-top: 4px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .service-card:hover {
            transform: translateY(-8px);
            border-top-color: var(--primary);
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
        }
        .service-card .icon-box {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }
        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }
        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* 4. Workflow Section */
        .workflow {
            background-color: var(--dark-bg);
            color: #fff;
        }
        .workflow h2 {
            color: #fff;
        }
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            position: relative;
            margin-top: 50px;
        }
        .step-card {
            background-color: var(--dark-card);
            border: 1px solid #333;
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-5px);
        }
        .step-num {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: #000;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 4px 10px rgba(255, 214, 0, 0.4);
        }
        .step-card h3 {
            margin-top: 15px;
            margin-bottom: 10px;
            color: var(--primary);
            font-size: 1.2rem;
        }
        .step-card p {
            font-size: 0.9rem;
            color: #bbb;
        }

        /* 5. Solutions Section */
        .solutions {
            background-color: #fff;
        }
        .solutions-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        .tab-btn {
            background-color: var(--light-bg);
            border: 1px solid var(--border-color);
            padding: 10px 24px;
            border-radius: 20px;
            cursor: pointer;
            font-weight: 700;
            transition: var(--transition);
        }
        .tab-btn.active, .tab-btn:hover {
            background-color: var(--primary);
            border-color: var(--primary);
            color: #000;
        }
        .solutions-content {
            background-color: var(--light-bg);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid var(--border-color);
        }
        .solution-pane {
            display: none;
        }
        .solution-pane.active {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .solution-pane h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
        }
        .solution-pane ul {
            list-style: none;
        }
        .solution-pane li {
            margin-bottom: 10px;
            padding-left: 20px;
            position: relative;
        }
        .solution-pane li::before {
            content: '✓';
            color: var(--primary-hover);
            position: absolute;
            left: 0;
            font-weight: bold;
        }

        /* 6. Service Network */
        .network {
            background-color: var(--light-bg);
            text-align: center;
        }
        .network-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }
        .network-card {
            background-color: #fff;
            padding: 25px;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .network-card:hover {
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            border-color: var(--primary);
        }
        .network-card h4 {
            font-size: 1.2rem;
            color: var(--dark-bg);
            margin-bottom: 10px;
        }
        .network-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* 7. Standard Process */
        .process {
            background-color: #fff;
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 40px auto 0 auto;
            padding: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 4px;
            background-color: var(--border-color);
            transform: translateX(-50%);
        }
        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }
        .timeline-item::after {
            content: '';
            position: absolute;
            top: 25px;
            right: -10px;
            width: 20px;
            height: 20px;
            background-color: var(--primary);
            border: 4px solid #fff;
            border-radius: 50%;
            z-index: 1;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        .timeline-item.left {
            left: 0;
            text-align: right;
        }
        .timeline-item.right {
            left: 50%;
        }
        .timeline-item.right::after {
            left: -10px;
        }
        .timeline-content {
            background-color: var(--light-bg);
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }
        .timeline-content h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--dark-bg);
        }
        .timeline-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* 8. Technical Standards */
        .standards {
            background-color: var(--dark-bg);
            color: #fff;
        }
        .standards h2 {
            color: #fff;
        }
        .standards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .standard-card {
            background: var(--dark-card);
            border: 1px solid #333;
            padding: 30px;
            border-radius: 12px;
            text-align: center;
        }
        .standard-card h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.3rem;
        }
        .standard-card p {
            color: #ccc;
            font-size: 0.95rem;
        }

        /* 9. Case Center */
        .cases {
            background-color: #fff;
        }
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }
        .case-card {
            background-color: var(--light-bg);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .case-image-wrapper {
            position: relative;
            background-color: #ddd;
            overflow: hidden;
        }
        .case-image-wrapper img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }
        .case-info {
            padding: 25px;
        }
        .case-tag {
            display: inline-block;
            background-color: rgba(255, 214, 0, 0.15);
            color: #b38600;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .case-info h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
        }
        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* 10. Evaluation (Rating) */
        .evaluation {
            background: linear-gradient(135deg, #121212 0%, #1e1e1e 100%);
            color: #fff;
        }
        .evaluation h2 {
            color: #fff;
        }
        .eval-container {
            max-width: 900px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid #333;
        }
        .eval-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #333;
            padding-bottom: 30px;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }
        .eval-score {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .score-num {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
        }
        .score-stars {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .eval-table-wrapper {
            overflow-x: auto;
        }
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        .eval-table th, .eval-table td {
            padding: 15px;
            border-bottom: 1px solid #333;
        }
        .eval-table th {
            color: var(--primary);
            font-weight: 700;
        }
        .eval-table td strong {
            color: #fff;
        }
        .tag-high {
            background-color: rgba(255,214,0,0.2);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.8rem;
        }

        /* 11. Match & Form */
        .matching {
            background-color: var(--light-bg);
        }
        .matching-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: flex-start;
        }
        .form-card {
            background-color: #fff;
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border: 1px solid var(--border-color);
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            outline: none;
            transition: var(--transition);
            font-size: 0.95rem;
        }
        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 214, 0, 0.25);
        }
        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }
        .form-submit-btn {
            width: 100%;
            background-color: var(--primary);
            color: #000;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 10px rgba(255,214,0,0.3);
        }
        .form-submit-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
        }

        /* 12. Token Price Section */
        .token-price {
            background-color: #fff;
        }
        .token-price-wrapper {
            background-color: var(--light-bg);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
            overflow-x: auto;
        }
        .token-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }
        .token-table th, .token-table td {
            padding: 15px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .token-table th {
            background-color: rgba(255, 214, 0, 0.1);
            font-weight: 700;
            color: var(--text-dark);
        }
        .token-table tr:hover {
            background-color: rgba(0,0,0,0.02);
        }

        /* 13. Training Sections (13 & 14) */
        .training {
            background: linear-gradient(to bottom, var(--light-bg), #fff);
        }
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .training-card {
            background-color: #fff;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
            box-shadow: 0 5px 15px rgba(0,0,0,0.02);
        }
        .training-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
        }
        .training-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark-bg);
            border-bottom: 2px solid var(--primary);
            padding-bottom: 8px;
            display: inline-block;
        }
        .training-card ul {
            list-style: none;
            margin-bottom: 20px;
        }
        .training-card li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 0.95rem;
            display: flex;
            justify-content: space-between;
        }
        .training-card li span {
            font-weight: 600;
            color: #b38600;
        }

        /* 15. Help Center / 18. Glossary / 17. Troubleshooting */
        .help-center {
            background-color: var(--light-bg);
        }
        .help-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 30px;
        }
        .help-content-wrapper {
            background-color: #fff;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }
        .help-pane {
            display: none;
        }
        .help-pane.active {
            display: block;
        }
        .glossary-grid, .trouble-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }
        .glossary-item, .trouble-item {
            background-color: var(--light-bg);
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--primary);
        }
        .glossary-item h4, .trouble-item h4 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        .glossary-item p, .trouble-item p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 16. FAQ Accordion */
        .faq-section {
            background-color: #fff;
        }
        .faq-wrapper {
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            padding: 10px 0;
            user-select: none;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .faq-answer-inner {
            padding: 10px 0 20px 0;
        }
        .faq-icon {
            font-weight: bold;
            font-size: 1.2rem;
            transition: transform 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item.active .faq-answer {
            max-height: 1000px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        /* Testimonials (Customer Reviews) */
        .reviews {
            background-color: var(--light-bg);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .review-card {
            background-color: #fff;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0,0,0,0.02);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .review-text {
            font-style: italic;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .author-avatar {
            width: 45px;
            height: 45px;
            background-color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
            color: #000;
        }
        .author-info h4 {
            font-size: 0.95rem;
            margin: 0;
        }
        .author-info p {
            margin: 0;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 19. Articles / Knowledge Base */
        .articles {
            background-color: #fff;
        }
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .article-card {
            background-color: var(--light-bg);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            padding: 25px;
            transition: var(--transition);
        }
        .article-card:hover {
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .article-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .article-card h3 {
            font-size: 1.15rem;
            margin-bottom: 12px;
        }
        .article-card h3 a {
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
        }
        .article-card h3 a:hover {
            color: var(--primary-hover);
        }
        .article-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 15px;
        }
        .article-link {
            font-size: 0.85rem;
            font-weight: 700;
            color: #b38600;
            text-decoration: none;
        }

        /* 20. Contact Section & Support Info */
        .contact {
            background-color: var(--dark-bg);
            color: #fff;
            border-bottom: 2px solid var(--primary);
        }
        .contact h2 {
            color: #fff;
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .contact-info h3 {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: var(--primary);
        }
        .contact-list {
            list-style: none;
            margin-bottom: 30px;
        }
        .contact-list li {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.05rem;
        }
        .qrcode-box {
            display: flex;
            gap: 30px;
            align-items: center;
            background: rgba(255,255,255,0.05);
            padding: 20px;
            border-radius: 12px;
            border: 1px solid #333;
        }
        .qrcode-box img {
            width: 110px;
            height: 110px;
            border-radius: 8px;
            background-color: #fff;
            padding: 5px;
        }
        .qrcode-desc h4 {
            color: var(--primary);
            margin-bottom: 6px;
        }
        .qrcode-desc p {
            margin: 0;
            font-size: 0.85rem;
            color: #bbb;
        }

        /* Footer & Friendly Links */
        footer {
            background-color: #0b0b0b;
            color: #aaa;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo h3 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1.3rem;
        }
        .footer-logo h3 span {
            color: var(--primary);
        }
        .footer-links h4, .footer-friend h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 1rem;
            font-weight: 700;
        }
        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-friend-links a {
            color: #aaa;
            text-decoration: none;
            background: #1e1e1e;
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .footer-friend-links a:hover {
            color: #000;
            background-color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid #222;
            padding-top: 25px;
            text-align: center;
            font-size: 0.8rem;
        }
        .footer-bottom p {
            margin: 5px 0;
        }

        /* Floating Components */
        .float-kefu {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            background-color: var(--primary);
            color: #000;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(0,0,0,0.3);
            cursor: pointer;
            transition: var(--transition);
            font-weight: 900;
            font-size: 0.8rem;
            text-align: center;
            line-height: 1.2;
        }
        .float-kefu:hover {
            transform: scale(1.1) rotate(10deg);
        }
        .kefu-popup {
            position: fixed;
            bottom: 100px;
            right: 30px;
            z-index: 1000;
            background: #fff;
            border: 2px solid var(--primary);
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            display: none;
            width: 220px;
            text-align: center;
        }
        .kefu-popup.active {
            display: block;
        }
        .kefu-popup img {
            width: 150px;
            height: 150px;
            margin-bottom: 10px;
        }
        .kefu-popup p {
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-dark);
            font-weight: 700;
        }

        /* Responsive adjustments */
        @media (max-width: 992px) {
            .about-grid, .matching-grid, .contact-grid, .solution-pane.active {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .nav-container {
                padding: 0 20px;
            }
            nav {
                display: none;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--dark-bg);
                border-bottom: 2px solid var(--primary);
                padding: 20px;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 15px;
                align-items: stretch;
            }
            .menu-toggle {
                display: flex;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
            }
            .timeline-item.left {
                text-align: left;
            }
            .timeline-item::after {
                left: 10px;
                right: auto;
            }
            .timeline-item.right {
                left: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }