:root {
            --primary: #7C3AED;
            --primary-light: #A78BFA;
            --secondary: #EC4899;
            --accent: #2563EB;
            --dark: #1F2937;
            --light: #F9FAFB;
            --gray: #6B7280;
            --border: #E5E7EB;
            --bg-gradient: linear-gradient(135deg, #F5F3FF 0%, #FDF2F8 100%);
            --card-shadow: 0 10px 25px -5px rgba(124, 58, 237, 0.05), 0 8px 10px -6px rgba(124, 58, 237, 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;
            color: var(--dark);
            background-color: #FCFDFE;
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        .section-padding {
            padding: 6rem 0;
        }

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

        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.85rem;
            font-weight: 600;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(236, 72, 153, 0.1));
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 1rem;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-desc {
            color: var(--gray);
            max-width: 700px;
            margin: 0 auto 3rem;
            font-size: 1.1rem;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.75rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 0.5rem;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            box-shadow: 0 4px 14px rgba(124, 58, 237, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
        }

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

        .btn-outline:hover {
            background: rgba(124, 58, 237, 0.05);
            transform: translateY(-2px);
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }

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

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

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

        .nav-menu {
            display: flex;
            gap: 1.5rem;
            list-style: none;
        }

        .nav-link {
            color: var(--dark);
            text-decoration: none;
            font-weight: 550;
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

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

        /* Hero Section (No Images) */
        .hero {
            padding: 8rem 0 6rem;
            background: var(--bg-gradient);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 50vw;
            height: 50vw;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            left: -10%;
            width: 40vw;
            height: 40vw;
            background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        h1.hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 1.5rem;
            color: var(--dark);
        }

        h1.hero-title span {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-description {
            font-size: 1.25rem;
            color: var(--gray);
            margin-bottom: 2.5rem;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 3.5rem;
            flex-wrap: wrap;
        }

        /* Data Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: 1rem;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(229, 231, 235, 0.7);
            transition: var(--transition);
        }

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

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

        .stat-label {
            font-size: 0.9rem;
            color: var(--gray);
        }

        /* Section Platform Intro & Services */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .feature-box {
            background: white;
            padding: 1.5rem;
            border-radius: 0.75rem;
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
        }

        .feature-box h4 {
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
            color: var(--primary);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background: white;
            border: 1px solid var(--border);
            padding: 2rem;
            border-radius: 1rem;
            transition: var(--transition);
            box-shadow: var(--card-shadow);
        }

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

        .service-icon {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 0.75rem;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(236, 72, 153, 0.1));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.25rem;
        }

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

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

        /* Tags Cloud */
        .tags-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.75rem;
            max-width: 900px;
            margin: 0 auto;
        }

        .tag-pill {
            background: white;
            border: 1px solid var(--border);
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-size: 0.9rem;
            color: var(--dark);
            transition: var(--transition);
        }

        .tag-pill:hover {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
        }

        /* Comparison Table & Metrics */
        .comparison-wrapper {
            background: white;
            border-radius: 1.5rem;
            border: 1px solid var(--border);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            margin-bottom: 3rem;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
        }

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

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

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

        table.compare-table tr.highlight-row {
            background-color: rgba(124, 58, 237, 0.03);
        }

        .score-box {
            display: flex;
            justify-content: space-around;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: white;
            padding: 2.5rem;
            border-radius: 1rem;
            text-align: center;
            margin-bottom: 3rem;
        }

        .score-item h4 {
            font-size: 1.1rem;
            opacity: 0.9;
            margin-bottom: 0.5rem;
        }

        .score-num {
            font-size: 3rem;
            font-weight: 800;
        }

        /* Steps & Workflow */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            position: relative;
        }

        .step-card {
            background: white;
            border: 1px solid var(--border);
            padding: 2rem 1.5rem;
            border-radius: 1rem;
            position: relative;
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .step-num {
            position: absolute;
            top: -1.25rem;
            left: 50%;
            transform: translateX(-50%);
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 9999px;
            background: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .step-card h4 {
            margin: 1rem 0 0.5rem;
            font-size: 1.15rem;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--gray);
        }

        /* Solutions List */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .solution-card {
            background: white;
            border-radius: 1rem;
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

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

        .solution-body {
            padding: 2rem;
        }

        .solution-body h3 {
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }

        .solution-body p {
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 1.5rem;
        }

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

        .solution-links li {
            font-size: 0.9rem;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--dark);
        }

        .solution-links li::before {
            content: '✓';
            color: var(--primary);
            font-weight: bold;
        }

        /* Token Price Box */
        .token-pricing {
            margin: 0 auto;
            max-width: 900px;
        }

        /* Cases Center */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .case-card {
            background: white;
            border-radius: 1rem;
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .case-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #F3F4F6;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-wrap img {
            transform: scale(1.05);
        }

        .case-content {
            padding: 1.5rem;
        }

        .case-tag {
            font-size: 0.8rem;
            color: var(--primary);
            text-transform: uppercase;
            font-weight: 700;
            margin-bottom: 0.5rem;
            display: inline-block;
        }

        .case-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

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

        /* Training Center */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .training-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .training-item {
            background: white;
            border: 1px solid var(--border);
            padding: 1.5rem;
            border-radius: 0.75rem;
            display: flex;
            gap: 1rem;
            box-shadow: var(--card-shadow);
        }

        .training-badge {
            background: var(--light);
            border: 1px solid var(--border);
            padding: 0.25rem 0.75rem;
            border-radius: 0.25rem;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            align-self: flex-start;
        }

        /* User Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

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

        .review-text {
            font-style: italic;
            color: var(--gray);
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .user-info h5 {
            font-size: 1rem;
            margin-bottom: 0.15rem;
        }

        .user-info p {
            font-size: 0.8rem;
            color: var(--gray);
        }

        /* Help & FAQ Accordion */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }

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

        .faq-header {
            padding: 1.25rem 1.5rem;
            background: white;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .faq-header:hover {
            background: rgba(124, 58, 237, 0.02);
        }

        .faq-body {
            padding: 0 1.5rem;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            color: var(--gray);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-body {
            max-height: 1000px;
            padding: 0 1.5rem 1.25rem;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

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

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

        /* Self-Troubleshoot & Terms */
        .trouble-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 3rem;
        }

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

        .trouble-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 0.5rem;
        }

        .term-list, .trouble-list {
            list-style: none;
        }

        .term-list li, .trouble-list li {
            margin-bottom: 1.25rem;
        }

        .term-list strong, .trouble-list strong {
            display: block;
            font-size: 1rem;
            margin-bottom: 0.25rem;
            color: var(--dark);
        }

        .term-list p, .trouble-list p {
            font-size: 0.9rem;
            color: var(--gray);
        }

        /* Article & News */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .article-card {
            background: white;
            border: 1px solid var(--border);
            border-radius: 1rem;
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

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

        .article-img-wrap {
            aspect-ratio: 16/9;
            background: #F3F4F6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--gray);
        }

        .article-body {
            padding: 1.5rem;
        }

        .article-date {
            font-size: 0.8rem;
            color: var(--gray);
            margin-bottom: 0.5rem;
        }

        .article-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            line-height: 1.4;
        }

        .article-title a {
            color: var(--dark);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .contact-channel {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
        }

        .channel-icon {
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 0.5rem;
            background: rgba(124, 58, 237, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }

        .channel-detail h4 {
            font-size: 1.1rem;
            margin-bottom: 0.25rem;
        }

        .channel-detail p, .channel-detail a {
            color: var(--gray);
            font-size: 0.95rem;
            text-decoration: none;
        }

        .qr-codes {
            display: flex;
            gap: 2rem;
            margin-top: 1rem;
        }

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

        .qr-item img {
            width: 120px;
            height: 120px;
            border: 1px solid var(--border);
            border-radius: 0.5rem;
            padding: 0.25rem;
            background: white;
            margin-bottom: 0.5rem;
        }

        .qr-item p {
            font-size: 0.85rem;
            color: var(--gray);
        }

        /* Form styling */
        .form-card {
            background: white;
            border: 1px solid var(--border);
            padding: 2.5rem;
            border-radius: 1rem;
            box-shadow: var(--card-shadow);
        }

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

        .form-label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
        }

        .form-control {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid var(--border);
            border-radius: 0.5rem;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
        }

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

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #E5E7EB;
            padding: 5rem 0 2rem;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 3rem;
            margin-bottom: 4rem;
        }

        .footer-logo-desc p {
            color: #9CA3AF;
            margin: 1rem 0 1.5rem;
            max-width: 320px;
        }

        .footer-title {
            color: white;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            position: relative;
        }

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

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

        .footer-links a {
            color: #9CA3AF;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: white;
            padding-left: 0.25rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-bottom p {
            color: #9CA3AF;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }

        .friend-links a {
            color: #9CA3AF;
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* Floating Widgets */
        .floating-widget {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .float-btn {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 9999px;
            background: white;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            color: var(--primary);
            font-weight: bold;
            font-size: 1.2rem;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .float-kefu-popup {
            position: absolute;
            bottom: 4.5rem;
            right: 0;
            background: white;
            border: 1px solid var(--border);
            border-radius: 0.75rem;
            padding: 1.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            width: 250px;
            display: none;
            text-align: center;
        }

        .float-kefu-popup.active {
            display: block;
        }

        .float-kefu-popup img {
            width: 100%;
            height: auto;
            border-radius: 0.5rem;
            margin-bottom: 0.5rem;
        }

        /* Animations */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* Responsive Styles */
        @media (max-width: 1024px) {
            .stats-grid, .steps-grid, .solutions-grid, .cases-grid, .reviews-grid, .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-grid, .training-grid, .faq-grid, .trouble-grid, .contact-layout {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            h1.hero-title {
                font-size: 2.25rem;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 4.5rem;
                left: 0;
                right: 0;
                background: white;
                border-bottom: 1px solid var(--border);
                padding: 1.5rem;
                gap: 1rem;
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .stats-grid, .steps-grid, .solutions-grid, .cases-grid, .reviews-grid, .article-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .qr-codes {
                justify-content: center;
            }
        }