/* Modern Vibrant Trend Style - Unified Theme */
        :root {
            --primary: #4f46e5;
            --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #ec4899 100%);
            --secondary: #06b6d4;
            --accent: #f43f5e;
            --bg-main: #f8fafc;
            --bg-card: #ffffff;
            --text-dark: #0f172a;
            --text-muted: #475569;
            --text-light: #64748b;
            --border-color: #e2e8f0;
            --border-hover: #cbd5e1;
            --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            --shadow-lg: 0 20px 25px -5px rgba(99, 102, 241, 0.1), 0 10px 10px -5px rgba(168, 85, 247, 0.04);
            --radius-lg: 16px;
            --radius-md: 10px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            overflow-x: hidden;
            width: 100%;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: #4338ca;
        }

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

        /* Top Header */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 2px 10px rgba(0,0,0,0.03);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

        .logo-box {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .ai-page-logo {
            max-height: 44px;
            width: auto;
            display: block;
        }

        .brand-name {
            font-size: 1.25rem;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
        }

        /* Strict requirement: .nav-links gap must be 0 */
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 0;
        }

        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
            border-radius: 6px;
        }

        .nav-links li a:hover {
            color: var(--primary);
            background: rgba(99, 102, 241, 0.06);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-visit {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #ffffff !important;
            background: var(--primary-gradient);
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
            border: none;
            cursor: pointer;
        }

        .btn-visit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--text-dark);
        }

        /* General Section Styling */
        section {
            padding: 80px 0;
            position: relative;
        }

        .section-bg-alt {
            background-color: #ffffff;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 50px auto;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            background: rgba(99, 102, 241, 0.1);
            border-radius: 20px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
        }

        /* Hero Section (NO IMAGES PER REQUIREMENT) */
        .hero-section {
            padding: 90px 0 100px 0;
            background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.12) 0%, rgba(236, 72, 153, 0.05) 50%, rgba(248, 250, 252, 0) 100%);
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
        }

        .hero-badge span {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #10b981;
            border-radius: 50%;
        }

        h1.hero-h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--text-dark);
            line-height: 1.25;
            max-width: 950px;
            margin: 0 auto 24px auto;
            letter-spacing: -1px;
        }

        h1.hero-h1 strong {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: var(--text-muted);
            max-width: 780px;
            margin: 0 auto 36px auto;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn-primary {
            padding: 14px 36px;
            font-size: 1.05rem;
            font-weight: 700;
            color: #ffffff !important;
            background: var(--primary-gradient);
            border-radius: 50px;
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(99, 102, 241, 0.45);
        }

        .btn-secondary {
            padding: 14px 32px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 900px;
            margin: 0 auto;
        }

        .stat-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }

        .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Features & Models Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            border-color: rgba(99, 102, 241, 0.4);
            box-shadow: var(--shadow-lg);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: rgba(99, 102, 241, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

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

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Tag Cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 30px;
        }

        .model-tag {
            padding: 8px 16px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        /* Comparison Evaluation Section */
        .rating-box {
            background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
            color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 30px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 40px;
        }

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

        .score-num {
            font-size: 3.5rem;
            font-weight: 900;
            color: #f59e0b;
            line-height: 1;
        }

        .score-num span {
            font-size: 1.5rem;
            color: #cbd5e1;
        }

        .stars {
            color: #f59e0b;
            font-size: 1.4rem;
            margin-top: 6px;
        }

        .comp-table-wrapper {
            overflow-x: auto;
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .comp-table th, .comp-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

        .comp-table th {
            background: #f1f5f9;
            font-weight: 700;
            color: var(--text-dark);
        }

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

        .comp-table .highlight {
            background: rgba(99, 102, 241, 0.04);
            font-weight: 700;
            color: var(--primary);
        }

        /* Token Price Table */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .token-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

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

        .price-discount {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            margin: 10px 0;
        }

        .price-original {
            text-decoration: line-through;
            color: var(--text-light);
            font-size: 0.9rem;
        }

        /* Case Showcase Media */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .case-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-box {
            position: relative;
            width: 100%;
            overflow: hidden;
            background: #e2e8f0;
        }

        .case-img-box img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

        .case-card:hover .case-img-box img {
            transform: scale(1.03);
        }

        .case-content {
            padding: 20px;
        }

        .case-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

        .case-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* Multi-media banner section */
        .banner-group {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .banner-group .ai-page-image {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
            position: relative;
        }

        .step-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: var(--primary-gradient);
            color: #ffffff;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px auto;
        }

        /* Customer Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .review-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .reviewer-info {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .reviewer-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
        }

        .reviewer-name {
            font-weight: 700;
            color: var(--text-dark);
        }

        .reviewer-role {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .review-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-style: italic;
        }

        /* FAQ Accordion */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            padding: 20px;
            text-align: left;
            background: none;
            border: none;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-answer {
            padding: 0 20px 20px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            display: none;
            border-top: 1px solid #f1f5f9;
            margin-top: -5px;
            padding-top: 15px;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        .faq-icon {
            transition: transform 0.3s;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        /* Article News Links */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 16px;
        }

        .article-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 18px;
            transition: var(--transition);
        }

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

        .article-card a {
            font-weight: 600;
            color: var(--text-dark);
            display: block;
            margin-bottom: 6px;
        }

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

        /* Form & Contact Section */
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
        }

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

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

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

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .qr-box {
            text-align: center;
            padding: 20px;
            background: #f8fafc;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-top: 20px;
        }

        .qr-box img {
            max-width: 160px;
            height: auto;
            border-radius: 8px;
            margin-bottom: 10px;
        }

        /* Footer */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1e293b;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 1.1rem;
            margin-bottom: 20px;
        }

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

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

        .footer-col ul li a {
            color: #94a3b8;
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            color: #94a3b8;
            background: #1e293b;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.85rem;
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #1e293b;
            font-size: 0.9rem;
            color: #64748b;
        }

        /* Floating Controls */
        .floating-bar {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #ffffff;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            cursor: pointer;
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--primary);
            color: #ffffff;
        }

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .contact-wrapper {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            h1.hero-h1 {
                font-size: 2.2rem;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 76px;
                left: 0;
                width: 100%;
                background: #ffffff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: block;
            }
            .nav-links {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .nav-links li {
                width: 100%;
            }
            .menu-toggle {
                display: block;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-box {
                flex-direction: column;
                text-align: center;
            }
        }