/* CSS Reset & Variables */
        :root {
            --primary: #1abc9c;
            --primary-hover: #16a085;
            --secondary: #2ecc71;
            --bg-light: #f4faf8;
            --text-dark: #2c3e50;
            --text-muted: #7f8c8d;
            --white: #ffffff;
            --shadow: 0 10px 30px rgba(26, 188, 156, 0.05);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--white);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Common Elements */
        section {
            padding: 80px 0;
        }

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

        .section-title {
            font-size: 2.2rem;
            color: var(--text-dark);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
            font-weight: 700;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--primary);
            border-radius: 2px;
        }

        .section-desc {
            color: var(--text-muted);
            margin-top: 15px;
            font-size: 1.1rem;
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            text-align: center;
            border: none;
        }

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

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(26, 188, 156, 0.3);
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
        }

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

        /* 1. Header & Navigation */
        header {
            position: sticky;
            top: 0;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            z-index: 1000;
            border-bottom: 1px solid rgba(26, 188, 156, 0.1);
        }

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

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

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

        nav {
            display: flex;
            align-items: center;
            gap: 25px;
        }

        nav a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: var(--white) !important;
            padding: 8px 20px;
            border-radius: 20px;
            font-weight: 600;
        }

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

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

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

        /* 2. Hero Section (首屏 - 严禁出现图片) */
        .hero {
            background: linear-gradient(135deg, #f4faf8 0%, #e8f8f5 100%);
            padding: 120px 0 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 300px;
            height: 300px;
            background: rgba(26, 188, 156, 0.05);
            border-radius: 50%;
            filter: blur(80px);
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: rgba(46, 204, 113, 0.05);
            border-radius: 50%;
            filter: blur(100px);
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: rgba(26, 188, 156, 0.1);
            color: var(--primary-hover);
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-dark);
            font-weight: 800;
        }

        .hero h1 span {
            color: var(--primary);
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        .hero-features {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(26, 188, 156, 0.1);
            padding-top: 40px;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-feat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .hero-feat-item svg {
            color: var(--primary);
        }

        /* 3. Data Counter Section */
        .data-counter {
            background-color: var(--white);
            padding: 50px 0;
            box-shadow: var(--shadow);
            margin-top: -30px;
            position: relative;
            z-index: 10;
            border-radius: 15px;
            border: 1px solid rgba(26, 188, 156, 0.08);
        }

        .counter-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .counter-item h3 {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 5px;
            font-weight: 700;
        }

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

        /* 4. About Us & Intro */
        .about {
            background-color: var(--bg-light);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h2 {
            font-size: 2.2rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .about-content h2 span {
            color: var(--primary);
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1.05rem;
        }

        .about-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .about-feat-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
            border-left: 4px solid var(--primary);
        }

        .about-feat-card h4 {
            margin-bottom: 8px;
            font-size: 1.1rem;
            color: var(--text-dark);
        }

        .about-feat-card p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        .about-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 30px;
        }

        .tag-item {
            padding: 6px 14px;
            background-color: rgba(26, 188, 156, 0.08);
            color: var(--primary-hover);
            border-radius: 15px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* 5. AIGC Services Section */
        .services {
            background-color: var(--white);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            border: 1px solid rgba(26, 188, 156, 0.1);
            padding: 40px 30px;
            border-radius: 15px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(26, 188, 156, 0.1);
            border-color: var(--primary);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: rgba(26, 188, 156, 0.1);
            color: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        .service-models {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .model-tag {
            font-size: 0.75rem;
            padding: 3px 8px;
            background-color: var(--bg-light);
            color: var(--text-muted);
            border-radius: 4px;
        }

        /* Model Aggregation Showcase */
        .model-aggregation {
            margin-top: 60px;
            background-color: var(--bg-light);
            border-radius: 15px;
            padding: 30px;
            text-align: center;
        }

        .model-aggregation h4 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .logo-stream {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .stream-item {
            padding: 6px 15px;
            background-color: var(--white);
            border: 1px solid rgba(26, 188, 156, 0.1);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .stream-item:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 6. Production & Solutions Section */
        .production {
            background-color: var(--bg-light);
        }

        .prod-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
            margin-bottom: 60px;
        }

        .prod-image-wrap {
            position: relative;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .prod-image-wrap img {
            width: 100%;
            display: block;
            transition: var(--transition);
        }

        .prod-image-wrap:hover img {
            transform: scale(1.03);
        }

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

        .prod-list {
            list-style: none;
            margin-bottom: 30px;
        }

        .prod-list li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            color: var(--text-muted);
        }

        .prod-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* 7. Timeline / Process Section */
        .process {
            background-color: var(--white);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 60px;
            height: 60px;
            background-color: rgba(26, 188, 156, 0.1);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 auto 20px auto;
            position: relative;
            z-index: 2;
            transition: var(--transition);
        }

        .process-step:hover .step-num {
            background-color: var(--primary);
            color: var(--white);
            transform: scale(1.1);
        }

        .process-step h4 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

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

        /* 8. Technical Standards */
        .standards {
            background-color: var(--bg-light);
        }

        .standards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .standard-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 12px;
            border-top: 4px solid var(--primary);
            box-shadow: 0 5px 20px rgba(0,0,0,0.02);
        }

        .standard-card h4 {
            font-size: 1.25rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

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

        /* 9. Case Center Section */
        .cases {
            background-color: var(--white);
        }

        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            background-color: var(--white);
            transition: var(--transition);
        }

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

        .case-img-box {
            position: relative;
            overflow: hidden;
        }

        .case-img-box img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .case-content {
            padding: 25px;
        }

        .case-tag {
            display: inline-block;
            padding: 4px 10px;
            background-color: rgba(26, 188, 156, 0.1);
            color: var(--primary);
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .case-content h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

        .case-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        /* 10. Evaluation (对比评测) */
        .evaluation {
            background-color: var(--bg-light);
        }

        .eval-summary {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 40px;
            margin-bottom: 50px;
            background-color: var(--white);
            padding: 30px;
            border-radius: 15px;
            box-shadow: var(--shadow);
            border-left: 6px solid var(--primary);
        }

        .eval-score {
            text-align: center;
        }

        .score-num {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .score-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 5px;
        }

        .eval-stars {
            color: #f1c40f;
            font-size: 1.5rem;
        }

        .eval-desc-text {
            font-size: 1.1rem;
            color: var(--text-dark);
            font-weight: 600;
        }

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

        .eval-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .eval-table th, .eval-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .eval-table th {
            background-color: rgba(26, 188, 156, 0.05);
            color: var(--text-dark);
            font-weight: 700;
        }

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

        .highlight-col {
            background-color: rgba(26, 188, 156, 0.02);
            font-weight: 600;
        }

        .badge-positive {
            color: var(--secondary);
            font-weight: bold;
        }

        /* 11. Token Price List */
        .token-price {
            background-color: var(--white);
        }

        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .price-card {
            background-color: var(--white);
            border: 1px solid rgba(26, 188, 156, 0.15);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .price-card.popular {
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(26, 188, 156, 0.1);
            transform: scale(1.03);
        }

        .price-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary);
            color: var(--white);
            padding: 4px 12px;
            border-radius: 10px;
            font-size: 0.8rem;
            font-weight: bold;
        }

        .price-card h4 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .price-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .price-unit {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .price-features {
            list-style: none;
            margin-bottom: 25px;
            text-align: left;
        }

        .price-features li {
            padding: 8px 0;
            border-bottom: 1px solid rgba(0,0,0,0.03);
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 12. Training Section */
        .training {
            background-color: var(--bg-light);
        }

        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background-color: var(--white);
            border-radius: 10px;
            padding: 25px 20px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-bottom: 4px solid var(--primary);
        }

        .training-card h4 {
            font-size: 1.1rem;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

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

        .training-cert {
            margin-top: 40px;
            background-color: rgba(26, 188, 156, 0.05);
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            font-weight: 600;
            color: var(--primary-hover);
        }

        /* 13. Customer Testimonials (6条评论) */
        .testimonials {
            background-color: var(--white);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .testimonial-card {
            background-color: var(--bg-light);
            padding: 30px;
            border-radius: 12px;
            position: relative;
        }

        .testimonial-card p {
            font-style: italic;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-size: 0.95rem;
        }

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

        .user-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: rgba(26, 188, 156, 0.2);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .user-detail h5 {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }

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

        /* 14. Troubleshooting & AI Dictionary */
        .helper-tools {
            background-color: var(--bg-light);
        }

        .helper-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .helper-box {
            background-color: var(--white);
            border-radius: 12px;
            padding: 35px;
            box-shadow: var(--shadow);
        }

        .helper-box h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            color: var(--text-dark);
            border-left: 4px solid var(--primary);
            padding-left: 12px;
        }

        /* 自助排查交互 */
        .diagnostic-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .diag-btn {
            background-color: var(--bg-light);
            border: 1px solid rgba(26, 188, 156, 0.15);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .diag-btn:hover, .diag-btn.active {
            background-color: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .diagnostic-result {
            background-color: var(--bg-light);
            border-radius: 8px;
            padding: 15px;
            font-size: 0.9rem;
            min-height: 80px;
            color: var(--text-dark);
        }

        /* AI 术语词典 */
        .dictionary-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .dict-item dt {
            font-weight: 700;
            color: var(--primary-hover);
            margin-bottom: 4px;
        }

        .dict-item dd {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-left: 0;
        }

        /* 15. FAQ Section */
        .faq {
            background-color: var(--white);
        }

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

        .faq-item {
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            padding: 15px 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            padding: 10px 0;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.4rem;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            margin-top: 10px;
            margin-bottom: 10px;
        }

        /* 16. Articles Section (资讯知识库) */
        .articles {
            background-color: var(--bg-light);
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .article-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .article-card h4 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .article-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 20px;
        }

        .article-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-link:hover {
            color: var(--primary-hover);
        }

        /* 17. Contact & Agent Section (联系我们 & 加盟代理 + 表单) */
        .contact {
            background-color: var(--white);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-panel {
            background-color: var(--bg-light);
            padding: 40px;
            border-radius: 15px;
            border-left: 6px solid var(--primary);
        }

        .contact-info-panel h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .contact-info-panel p {
            color: var(--text-muted);
            margin-bottom: 25px;
        }

        .contact-item {
            margin-bottom: 20px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-icon {
            color: var(--primary);
            font-size: 1.2rem;
            margin-top: 2px;
        }

        .contact-detail h5 {
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }

        .contact-detail p {
            font-size: 0.9rem;
            margin-bottom: 0;
            word-break: break-all;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .qr-item {
            text-align: center;
        }

        .qr-item img {
            width: 120px;
            height: 120px;
            border: 1px solid rgba(0, 0, 0, 0.08);
            border-radius: 8px;
            padding: 5px;
            background-color: var(--white);
            margin-bottom: 8px;
        }

        .qr-item p {
            font-size: 0.8rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        /* Form styling */
        .form-panel {
            background-color: var(--white);
            border: 1px solid rgba(26, 188, 156, 0.15);
            padding: 40px;
            border-radius: 15px;
            box-shadow: var(--shadow);
        }

        .form-panel h3 {
            margin-bottom: 20px;
            font-size: 1.5rem;
            color: var(--text-dark);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid rgba(0, 0, 0, 0.12);
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 188, 156, 0.1);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* 18. Footer & Copyright */
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 60px 0 30px 0;
            font-size: 0.9rem;
            border-top: 4px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo-desc h4 {
            font-size: 1.4rem;
            color: var(--white);
            margin-bottom: 15px;
        }

        .footer-logo-desc p {
            color: #bdc3c7;
            line-height: 1.8;
        }

        .footer-links h5, .footer-contact h5 {
            color: var(--white);
            font-size: 1.05rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-links h5::after, .footer-contact h5::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--primary);
        }

        .footer-links ul {
            list-style: none;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: #bdc3c7;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .footer-contact p {
            color: #bdc3c7;
            margin-bottom: 12px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(236, 240, 241, 0.1);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .footer-bottom p {
            color: #95a5a6;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links a {
            color: #bdc3c7;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
        }

        .ai-page-home-link:hover {
            text-decoration: underline;
        }

        /* Float Customer Service */
        .float-cs {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(26, 188, 156, 0.4);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.05);
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--white);
            border: 1px solid rgba(26, 188, 156, 0.15);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            display: none;
            text-align: center;
            width: 160px;
        }

        .qr-popover img {
            width: 130px;
            height: 130px;
            margin-bottom: 5px;
            display: block;
        }

        .qr-popover p {
            font-size: 0.8rem;
            color: var(--text-dark);
            margin: 0;
            font-weight: 600;
        }

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

        .back-to-top {
            display: none;
        }

        .back-to-top.show {
            display: flex;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .counter-grid, .services-grid, .cases-grid, .testimonials-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            nav {
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--white);
                flex-direction: column;
                padding: 20px;
                gap: 15px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                display: none;
                border-bottom: 1px solid rgba(26, 188, 156, 0.1);
            }
            nav.active {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-grid, .prod-grid, .helper-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .counter-grid, .services-grid, .training-grid, .testimonials-grid, .articles-grid, .case-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 300px;
            }
            .eval-summary {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
        }