:root {
            --primary: #10B981;
            --primary-dark: #059669;
            --primary-light: #ECFDF5;
            --mint-pale: #F0FDF4;
            --accent: #34D399;
            --dark-title: #0F172A;
            --dark-text: #334155;
            --light-muted: #64748B;
            --white: #FFFFFF;
            --shadow-sm: 0 2px 4px rgba(16, 185, 129, 0.05);
            --shadow-md: 0 4px 20px rgba(16, 185, 129, 0.08);
            --shadow-lg: 0 10px 30px rgba(16, 185, 129, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --border-radius: 12px;
            --max-width: 1200px;
        }

        /* Reset & Base Styles */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            background-color: var(--mint-pale);
            color: var(--dark-text);
            line-height: 1.6;
        }
        body {
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            border: none;
            outline: none;
            font-family: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Global Layout Container */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .section {
            padding: 90px 0;
            position: relative;
        }
        
        .section:nth-of-type(even) {
            background-color: var(--white);
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-tag {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 50px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }
        
        .section-title {
            font-size: 2.25rem;
            color: var(--dark-title);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.025em;
        }
        
        .section-desc {
            font-size: 1.125rem;
            color: var(--light-muted);
            max-width: 700px;
            margin: 0 auto;
        }

        /* Header Navigation */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid rgba(16, 185, 129, 0.1);
            box-shadow: var(--shadow-sm);
        }
        
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        
        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .ai-page-logo {
            max-height: 44px;
            width: auto;
            object-fit: contain;
        }
        
        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: 0.5px;
        }
        
        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        
        .nav-item {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--dark-title);
            padding: 8px 0;
            position: relative;
        }
        
        .nav-item::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        
        .nav-item:hover {
            color: var(--primary-dark);
        }
        
        .nav-item:hover::after {
            width: 100%;
        }
        
        .nav-btn {
            background-color: var(--primary);
            color: var(--white);
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
        }
        
        .nav-btn:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(16, 185, 129, 0.3);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            padding: 4px;
        }

        .menu-bar {
            width: 24px;
            height: 2px;
            background-color: var(--dark-title);
            transition: var(--transition);
        }

        /* Hero Section (No Images!) */
        .hero {
            padding: 170px 0 100px 0;
            background: linear-gradient(135deg, var(--mint-pale) 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }
        
        .hero-wave {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            fill: var(--white);
        }
        
        .hero-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            z-index: 10;
        }
        
        .hero-badge {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            padding: 8px 18px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 24px;
            border: 1px solid rgba(16, 185, 129, 0.2);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }
        
        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            color: var(--dark-title);
            font-weight: 800;
            max-width: 900px;
            margin-bottom: 24px;
        }
        
        .hero-title span {
            color: var(--primary-dark);
            background: linear-gradient(120deg, var(--primary-dark) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .hero-subtitle {
            font-size: 1.25rem;
            color: var(--light-muted);
            max-width: 750px;
            margin-bottom: 40px;
        }
        
        .hero-ctas {
            display: flex;
            gap: 16px;
            margin-bottom: 48px;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .btn-primary {
            background-color: var(--primary);
            color: var(--white);
            padding: 16px 36px;
            border-radius: 50px;
            font-size: 1.125rem;
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(16, 185, 129, 0.25);
        }
        
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(16, 185, 129, 0.35);
        }
        
        .btn-secondary {
            background-color: var(--white);
            color: var(--primary-dark);
            border: 2px solid var(--primary);
            padding: 14px 34px;
            border-radius: 50px;
            font-size: 1.125rem;
            font-weight: 700;
        }
        
        .btn-secondary:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }
        
        .hero-highlights {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            justify-content: center;
        }
        
        .hl-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--dark-title);
            font-weight: 600;
            font-size: 1rem;
        }
        
        .hl-icon {
            color: var(--primary);
            font-size: 1.25rem;
        }

        /* Metrics Data Cards Component */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -40px;
            position: relative;
            z-index: 20;
            margin-bottom: 60px;
        }
        
        .metric-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px 24px;
            box-shadow: var(--shadow-md);
            text-align: center;
            border-bottom: 4px solid var(--primary);
            transition: var(--transition);
        }
        
        .metric-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        
        .metric-val {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        
        .metric-label {
            font-size: 1rem;
            color: var(--light-muted);
            font-weight: 500;
        }

        /* General Grid & Flex Cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        /* Card Styles */
        .card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(16, 185, 129, 0.08);
            transition: var(--transition);
        }
        
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(16, 185, 129, 0.3);
        }

        .card-icon {
            width: 56px;
            height: 56px;
            background-color: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--primary-dark);
            font-size: 1.5rem;
            font-weight: 700;
        }

        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark-title);
            margin-bottom: 12px;
        }

        .card-desc {
            color: var(--dark-text);
            font-size: 0.975rem;
        }

        /* Supported Platforms / Model Grid */
        .platform-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            margin-top: 40px;
        }
        
        .platform-tag {
            background-color: var(--white);
            border: 1px solid rgba(16, 185, 129, 0.15);
            border-radius: 8px;
            padding: 12px;
            text-align: center;
            font-weight: 600;
            color: var(--dark-title);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        
        .platform-tag:hover {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary);
            transform: scale(1.05);
        }

        /* Flow / Timeline Steps */
        .flow-container {
            display: flex;
            justify-content: space-between;
            position: relative;
            margin-top: 40px;
        }
        
        .flow-container::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 5%;
            width: 90%;
            height: 2px;
            background-color: var(--primary-light);
            z-index: 1;
        }
        
        .flow-step {
            width: 22%;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        
        .flow-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background-color: var(--white);
            border: 3px solid var(--primary);
            color: var(--primary);
            font-size: 1.25rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            transition: var(--transition);
        }
        
        .flow-step:hover .flow-num {
            background-color: var(--primary);
            color: var(--white);
            transform: scale(1.1);
        }

        /* Network & Distribution Map Mock */
        .network-section {
            background-color: var(--white);
        }
        .network-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .net-card {
            background-color: var(--mint-pale);
            border-radius: var(--border-radius);
            padding: 24px;
            border-left: 4px solid var(--primary);
        }
        .net-city {
            font-weight: 700;
            color: var(--dark-title);
            font-size: 1.125rem;
            margin-bottom: 6px;
        }

        /* Review & Evaluation Section */
        .rating-box {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--mint-pale) 100%);
            border-radius: var(--border-radius);
            padding: 40px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            margin-bottom: 50px;
        }
        .rating-stars {
            color: #F59E0B;
            font-size: 2rem;
            margin-bottom: 10px;
        }
        .rating-number {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary-dark);
            line-height: 1;
        }
        .rating-label {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark-title);
            margin-top: 10px;
        }

        /* Evaluation Table */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            background-color: var(--white);
            margin-bottom: 60px;
        }
        
        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }
        
        .eval-table th, .eval-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .eval-table th {
            background-color: var(--primary-light);
            color: var(--primary-dark);
            font-weight: 700;
        }
        
        .eval-table tr:hover {
            background-color: var(--mint-pale);
        }
        
        .eval-highlight {
            font-weight: 700;
            color: var(--primary-dark);
        }

        /* Testimonials Slider/Grid */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        
        .review-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(16, 185, 129, 0.05);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        
        .review-text {
            font-style: italic;
            color: var(--dark-text);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }
        
        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .user-info h4 {
            font-size: 1rem;
            color: var(--dark-title);
            font-weight: 700;
        }
        
        .user-info span {
            font-size: 0.85rem;
            color: var(--light-muted);
        }

        /* Banner Showcase Section (Images allowed here) */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        .showcase-item {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .showcase-item:hover {
            transform: scale(1.02);
            box-shadow: var(--shadow-md);
        }
        .showcase-img {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        /* Training Component Style */
        .training-container {
            background-color: var(--mint-pale);
            border-radius: var(--border-radius);
            padding: 40px;
            border: 1px dashed var(--primary);
        }
        
        .training-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        
        .training-item {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            border: 1px solid rgba(16, 185, 129, 0.1);
            font-weight: 700;
            color: var(--dark-title);
            font-size: 0.95rem;
        }

        /* FAQ Section (Accordion) */
        .faq-accordion {
            max-width: 850px;
            margin: 0 auto;
        }
        
        .faq-item {
            margin-bottom: 12px;
            border-radius: 8px;
            background-color: var(--white);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            color: var(--dark-title);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        
        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }
        
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        
        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(180deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: var(--mint-pale);
        }
        
        .faq-answer-content {
            padding: 20px 24px;
            color: var(--dark-text);
            font-size: 0.95rem;
            border-top: 1px solid rgba(16, 185, 129, 0.1);
        }

        /* AI Term Glossary */
        .glossary-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .glossary-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
        }
        .glossary-term {
            font-weight: 800;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .glossary-definition {
            font-size: 0.875rem;
            color: var(--dark-text);
        }

        /* Articles / Knowledge Base */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .article-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }
        .article-body {
            padding: 24px;
        }
        .article-meta {
            font-size: 0.8rem;
            color: var(--light-muted);
            margin-bottom: 10px;
        }
        .article-title {
            font-size: 1.125rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--dark-title);
        }
        .article-link {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        /* Requirement Match Form & Contact Us */
        .form-section {
            background-color: var(--white);
        }
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
        }
        
        .contact-form-card {
            background-color: var(--mint-pale);
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 700;
            color: var(--dark-title);
        }
        
        .form-input, .form-select, .form-textarea {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background-color: var(--white);
            outline: none;
            font-family: inherit;
            transition: var(--transition);
        }
        
        .form-input:focus, .form-select:focus, .form-textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
        }
        
        .form-textarea {
            height: 120px;
            resize: vertical;
        }
        
        .contact-info-card {
            padding: 20px;
            background-color: var(--white);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
        }
        
        .qr-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
            text-align: center;
        }
        .qr-box img {
            width: 100%;
            max-width: 140px;
            margin: 0 auto 10px auto;
            border: 1px solid var(--border-color);
            border-radius: 8px;
        }
        .qr-box span {
            font-size: 0.85rem;
            color: var(--dark-title);
            font-weight: 600;
        }

        /* Footer & Links */
        .footer {
            background-color: #0F172A;
            color: #E2E8F0;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #1E293B;
        }
        
        .footer-logo-desc {
            max-width: 400px;
        }
        
        .footer-logo-desc img {
            max-height: 48px;
            margin-bottom: 20px;
            
        }
        
        .footer-links-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 20px;
        }
        
        .footer-links-list {
            list-style: none;
        }
        
        .footer-links-list li {
            margin-bottom: 10px;
        }
        
        .footer-links-list a:hover {
            color: var(--accent);
        }
        
        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        
        .friend-links-container a {
            background-color: #1E293B;
            padding: 6px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
            color: #94A3B8;
        }
        
        .friend-links-container a:hover {
            background-color: var(--primary);
            color: var(--white);
        }
        
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: #94A3B8;
        }
        
        .ai-page-home-link {
            color: var(--primary);
            font-weight: 600;
        }
        
        .ai-page-home-link:hover {
            text-decoration: underline;
        }

        /* Floating Contact Element */
        .floating-contact {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .float-item {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
            cursor: pointer;
            position: relative;
        }
        
        .float-item:hover {
            background-color: var(--primary-dark);
            transform: scale(1.05);
        }
        
        .float-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--white);
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            padding: 16px;
            display: none;
            width: 180px;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        
        .float-popover img {
            width: 100%;
            border-radius: 4px;
            margin-bottom: 8px;
        }
        
        .float-popover span {
            color: var(--dark-title);
            font-size: 0.8rem;
            font-weight: 700;
        }
        
        .float-item:hover .float-popover {
            display: block;
        }

        /* Responsive Layout Optimization */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 20px;
            }
            .grid-3, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .platform-grid {
                grid-template-columns: repeat(4, 1fr);
            }
            .training-list {
                grid-template-columns: repeat(3, 1fr);
            }
            .glossary-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 76px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                gap: 16px;
            }
            .nav-links.active {
                display: flex;
            }
            .hero-title {
                font-size: 2.25rem;
            }
            .grid-3, .grid-2, .reviews-grid, .articles-grid, .glossary-grid, .network-grid {
                grid-template-columns: 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .flow-container {
                flex-direction: column;
                gap: 30px;
            }
            .flow-container::before {
                display: none;
            }
            .flow-step {
                width: 100%;
            }
            .platform-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .training-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .showcase-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }