:root {
            --primary: #10b981;
            --primary-hover: #059669;
            --primary-light: #d1fae5;
            --secondary: #22c55e;
            --dark: #0f172a;
            --light: #f8fafc;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --card-shadow: 0 4px 20px -2px rgba(16, 185, 129, 0.08), 0 2px 8px -1px rgba(0, 0, 0, 0.04);
            --transition: all 0.3s ease;
        }

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

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

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

        /* Navigation */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

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

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark);
        }

        .logo-text span {
            color: var(--primary);
        }

        nav {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
        }

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

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

        .nav-btn {
            background-color: var(--primary);
            color: white;
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid transparent;
        }

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: none;
        }

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

        /* Hero (No Images Allowed) */
        .hero {
            background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 50%, #d1fae5 100%);
            padding: 100px 0 80px;
            text-align: center;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 100%;
            background: radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(34, 197, 94, 0.05) 0%, transparent 40%);
            pointer-events: none;
        }

        .hero-tag {
            background-color: var(--primary-light);
            color: var(--primary-hover);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 40px;
        }

        .btn-main {
            background-color: var(--primary);
            color: white;
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
        }

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

        .btn-secondary {
            background-color: white;
            color: var(--primary-hover);
            padding: 14px 28px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            border: 1px solid var(--primary-light);
        }

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

        .hero-features {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero-feature-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: var(--text-dark);
            font-weight: 500;
        }

        .hero-feature-item svg {
            color: var(--primary);
            width: 20px;
            height: 20px;
        }

        /* Stats Cards */
        .stats-section {
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background-color: white;
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: var(--card-shadow);
            border-bottom: 3px solid var(--primary);
            transition: var(--transition);
        }

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

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

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Section Layout templates */
        .section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 15px;
        }

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

        /* Services Grid */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

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

        .service-icon {
            width: 50px;
            height: 50px;
            border-radius: 10px;
            background-color: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-hover);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
        }

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

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

        .service-tags span {
            background-color: var(--light);
            font-size: 0.75rem;
            color: var(--text-dark);
            padding: 4px 8px;
            border-radius: 4px;
            border: 1px solid var(--border);
        }

        /* Tag Cloud style for AI Platforms */
        .platform-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 900px;
            margin: 0 auto;
        }

        .platform-tag {
            background-color: white;
            border: 1px solid var(--border);
            color: var(--text-dark);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            transition: var(--transition);
        }

        .platform-tag:hover {
            border-color: var(--primary);
            color: var(--primary-hover);
            background-color: var(--primary-light);
            transform: scale(1.05);
        }

        /* Step List */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-item {
            background-color: white;
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            position: relative;
            border: 1px solid var(--border);
        }

        .step-num {
            width: 40px;
            height: 40px;
            background-color: var(--primary);
            color: white;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        /* Interactive Comparison Table */
        .comparison-table-wrapper {
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background-color: white;
        }

        .comparison-table th, .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border);
        }

        .comparison-table th {
            background-color: var(--light);
            font-weight: 700;
            color: var(--dark);
        }

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

        .comparison-table tr.highlight {
            background-color: var(--green-bg);
        }

        .comparison-table tr.highlight td {
            border-left: 2px solid var(--primary);
        }

        /* Cases Center */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

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

        .case-img-container {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: var(--light);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-content {
            padding: 20px;
        }

        .case-tag {
            font-size: 0.75rem;
            color: var(--primary-hover);
            background-color: var(--primary-light);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 10px;
        }

        .case-content h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* Testimonials / User Comments */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .review-card {
            background-color: white;
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border);
            position: relative;
        }

        .review-text {
            font-size: 0.9rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            position: relative;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .author-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .author-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
        }

        .author-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

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

        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary-hover);
            background-color: var(--light);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: var(--light);
        }

        .faq-answer p {
            padding: 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
            transition: max-height 1s ease-in-out;
        }

        /* Form styling */
        .form-section {
            background-color: var(--green-bg);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .form-info h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .form-info p {
            color: var(--text-muted);
            margin-bottom: 30px;
        }

        .contact-methods {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .contact-method-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .contact-icon {
            width: 45px;
            height: 45px;
            border-radius: 8px;
            background-color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-hover);
            border: 1px solid var(--border);
        }

        .form-wrapper {
            background-color: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border);
        }

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

        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 6px;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        .btn-submit {
            width: 100%;
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 14px;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

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

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

        .article-card {
            background-color: white;
            border-radius: 12px;
            border: 1px solid var(--border);
            padding: 24px;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .article-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 12px;
            text-decoration: none;
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .article-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
        }

        /* Network Section Grid */
        .network-map {
            background-color: white;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 40px;
            text-align: center;
        }

        .network-list {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .network-node {
            background-color: var(--light);
            border: 1px solid var(--border);
            padding: 12px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Floating QR Code Contact */
        .floating-contact {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

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

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: none;
            width: 180px;
            text-align: center;
            border: 1px solid var(--border);
        }

        .qr-popover img {
            width: 100%;
            height: auto;
            margin-bottom: 8px;
        }

        .qr-popover span {
            font-size: 0.75rem;
            color: var(--text-dark);
            font-weight: 600;
        }

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

        /* Footer */
        footer {
            background-color: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--primary);
        }

        .footer-brand p {
            color: #94a3b8;
            font-size: 0.85rem;
            line-height: 1.7;
            margin-bottom: 15px;
        }

        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 15px;
            position: relative;
            padding-bottom: 8px;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.85rem;
            transition: var(--transition);
        }

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

        .friendship-links {
            border-top: 1px solid #334155;
            padding-top: 25px;
            margin-bottom: 25px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }

        .friendship-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.8rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.8rem;
            color: #94a3b8;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .service-grid, .cases-grid, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .form-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            nav {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: white;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 4px 10px rgba(0,0,0,0.05);
                display: none;
            }
            nav.active {
                display: flex;
            }
            .nav-links {
                flex-direction: column;
                align-items: center;
                width: 100%;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .stats-grid, .service-grid, .cases-grid, .reviews-grid, .articles-grid, .process-steps {
                grid-template-columns: 1fr;
            }
            .network-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }