:root {
            --primary: #2563eb;
            --primary-hover: #1d4ed8;
            --secondary: #7c3aed;
            --secondary-hover: #6d28d9;
            --accent: #06b6d4;
            --neutral-dark: #0f172a;
            --neutral-light: #f8fafc;
            --text-main: #334155;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        /* Base Container */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Typography */
        h1, h2, h3, h4 {
            color: var(--neutral-dark);
            font-weight: 700;
            line-height: 1.25;
        }

        h2 {
            font-size: 2.25rem;
            text-align: center;
            margin-bottom: 3rem;
            position: relative;
            background: linear-gradient(135deg, var(--neutral-dark), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-desc {
            text-align: center;
            max-width: 700px;
            margin: -2rem auto 3rem auto;
            color: var(--text-muted);
            font-size: 1.125rem;
        }

        /* Header & Navigation */
        .header {
            position: sticky;
            top: 0;
            background-color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 4.5rem;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
        }

        .ai-page-logo {
            height: 2.5rem;
            width: auto;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
            list-style: none;
        }

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

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

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white !important;
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
        }

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

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

        /* Hero Section (No Images Allowed) */
        .hero {
            position: relative;
            padding: 7.5rem 0 6rem 0;
            background: radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.05) 0%, rgba(124, 58, 237, 0.05) 90%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(6, 182, 212, 0.03) 0%, transparent 60%);
            pointer-events: none;
            animation: pulse 15s infinite alternate;
        }

        @keyframes pulse {
            0% { transform: scale(1) translate(0, 0); }
            100% { transform: scale(1.1) translate(5%, 5%); }
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background-color: rgba(37, 99, 235, 0.1);
            color: var(--primary);
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .hero-h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            line-height: 1.15;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, var(--neutral-dark) 30%, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-p {
            font-size: 1.25rem;
            color: var(--text-muted);
            margin-bottom: 2.5rem;
            max-width: 750px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 3.5rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.875rem 2rem;
            border-radius: 0.5rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
        }

        .btn-secondary {
            background-color: white;
            color: var(--neutral-dark);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            background-color: var(--neutral-light);
            border-color: var(--text-muted);
        }

        /* Stats Cards in Hero (No Images) */
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            border-radius: 1rem;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 0.25rem;
        }

        .stat-label {
            font-size: 0.875rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Section Layouts */
        .section {
            padding: 6rem 0;
            border-bottom: 1px solid var(--border-color);
            background-color: white;
        }

        .section-alt {
            background-color: var(--neutral-light);
        }

        /* About Us & Platform Intro */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.75rem;
            margin-bottom: 1.25rem;
        }

        .about-list {
            list-style: none;
            margin: 1.5rem 0;
        }

        .about-list li {
            position: relative;
            padding-left: 2rem;
            margin-bottom: 0.75rem;
        }

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

        /* Service Systems & Core Ecosystem */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 2.25rem;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--card-shadow);
            border-color: var(--primary);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }

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

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            position: relative;
        }

        .step-card {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 2rem;
            text-align: center;
            position: relative;
            transition: var(--transition);
        }

        .step-card:hover {
            border-color: var(--secondary);
            transform: scale(1.03);
        }

        .step-num {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 auto 1.5rem auto;
        }

        /* Image Display Areas */
        .image-showcase {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

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

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

        .showcase-item img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            display: block;
        }

        .showcase-info {
            padding: 1.5rem;
        }

        .showcase-info h4 {
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
        }

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

        /* Comparison Section */
        .table-responsive {
            overflow-x: auto;
            border-radius: 1rem;
            border: 1px solid var(--border-color);
            background-color: white;
        }

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

        .comparison-table th, 
        .comparison-table td {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: #f8fafc;
            color: var(--neutral-dark);
            font-weight: 700;
        }

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

        .comparison-table .highlight {
            background-color: rgba(37, 99, 235, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        .score-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #f59e0b, #d97706);
            color: white;
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            font-weight: 700;
        }

        /* Token Pricing & Grid List */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .token-card {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 1.5rem;
            transition: var(--transition);
        }

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

        .token-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 0.75rem;
        }

        .token-name {
            font-weight: 700;
            color: var(--neutral-dark);
        }

        .token-price {
            color: #22c55e;
            font-weight: 700;
        }

        /* FAQ Accordion */
        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            width: 100%;
            padding: 1.25rem 1.5rem;
            text-align: left;
            background: none;
            border: none;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--neutral-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--text-muted);
            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;
            background-color: #fafafa;
        }

        .faq-answer-inner {
            padding: 1.5rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-main);
        }

        .faq-item.active .faq-answer {
            max-height: 500px; /* Adjust dynamically */
        }

        /* User Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .review-card {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 2rem;
            box-shadow: var(--card-shadow);
            position: relative;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1rem;
        }

        .author-info h4 {
            font-size: 1rem;
        }

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

        .rating-stars {
            color: #fbbf24;
            margin-bottom: 1rem;
        }

        /* Form section */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-item {
            display: flex;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .info-icon {
            font-size: 1.5rem;
            color: var(--primary);
        }

        .contact-form-wrapper {
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 2.5rem;
            box-shadow: var(--card-shadow);
        }

        .form-group {
            margin-bottom: 1.25rem;
        }

        .form-label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: var(--neutral-dark);
        }

        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 0.5rem;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        /* Float Customer Service */
        .float-kefu {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 999;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 50%;
            width: 3.75rem;
            height: 3.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: var(--transition);
        }

        .float-kefu:hover {
            transform: scale(1.1);
        }

        .kefu-modal {
            display: none;
            position: fixed;
            bottom: 6.5rem;
            right: 2rem;
            width: 280px;
            background-color: white;
            border: 1px solid var(--border-color);
            border-radius: 1rem;
            padding: 1.5rem;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            text-align: center;
        }

        .kefu-modal img {
            width: 150px;
            height: 150px;
            margin-bottom: 1rem;
        }

        /* Footer */
        .footer {
            background-color: var(--neutral-dark);
            color: #94a3b8;
            padding: 5rem 0 2rem 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 3rem;
            margin-bottom: 4rem;
        }

        .footer-logo {
            margin-bottom: 1.5rem;
        }

        .footer-h4 {
            color: white;
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
        }

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

        .footer-links li {
            margin-bottom: 0.75rem;
        }

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

        .footer-links a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.875rem;
        }

        .friend-links {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 1rem;
        }

        .friend-links a {
            color: #64748b;
            text-decoration: none;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: #94a3b8;
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .about-grid, .contact-layout {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 4.5rem;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                padding: 2rem 0;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05);
            }
            .nav-links.active {
                display: flex;
            }
        }