/* CSS Reset & Variables */
        :root {
            --primary: #0052cc;
            --primary-light: #e6f0ff;
            --secondary: #7928ca;
            --accent: #ff4d4d;
            --dark-bg: #0f172a;
            --light-bg: #f8fafc;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --gradient-primary: linear-gradient(135deg, #0052cc 0%, #7928ca 100%);
            --gradient-accent: linear-gradient(135deg, #ff4d4d 0%, #f97316 100%);
            --gradient-bg: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
        }

        * {
            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;
            color: var(--text-main);
            background-color: var(--light-bg);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        /* Section Global Utility */
        section {
            padding: 80px 0;
            position: relative;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.25rem;
            margin-bottom: 12px;
            font-weight: 800;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-desc {
            text-align: center;
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 50px auto;
        }

        /* Header & Navigation */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition-smooth);
        }

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

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

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

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

        nav ul {
            display: flex;
            gap: 24px;
        }

        nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
        }

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

        .nav-btn {
            background: var(--gradient-primary);
            color: #fff;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 4px 10px rgba(0, 82, 204, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(0, 82, 204, 0.3);
            color: #fff;
        }

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

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

        /* Hero Section (No Image) */
        .hero {
            padding-top: 160px;
            padding-bottom: 100px;
            background: radial-gradient(circle at 10% 20%, rgba(0, 82, 204, 0.05) 0%, rgba(121, 40, 202, 0.05) 90%);
            text-align: center;
            overflow: hidden;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
            box-shadow: 0 4px 6px rgba(0, 82, 204, 0.05);
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 900;
            color: var(--dark-bg);
            margin-bottom: 20px;
        }

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

        .hero p {
            font-size: 1.25rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 35px auto;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #fff;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 8px 20px rgba(0, 82, 204, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 25px rgba(0, 82, 204, 0.35);
        }

        .btn-outline {
            background: #fff;
            color: var(--text-main);
            border: 1px solid var(--border-color);
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02);
        }

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

        /* Stats Cards (Within Hero) */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 24px 20px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            transition: var(--transition-smooth);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            border-color: var(--primary-light);
        }

        .stat-num {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        /* About Us Section */
        .about-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 60px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.75rem;
            margin-bottom: 20px;
            color: var(--dark-bg);
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .highlight-list {
            margin: 30px 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .highlight-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .highlight-item svg {
            color: #10b981;
            flex-shrink: 0;
        }

        .about-image-wrapper {
            position: relative;
        }

        .about-img {
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border: 8px solid #fff;
        }

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

        .service-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 40px 30px;
            border-radius: 16px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition-smooth);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 35px rgba(0,0,0,0.06);
            border-color: transparent;
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 24px;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 12px;
            color: var(--dark-bg);
        }

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

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .service-tag {
            background: var(--light-bg);
            padding: 4px 10px;
            font-size: 0.75rem;
            border-radius: 4px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Model Aggregation Wall */
        .model-wall {
            background: var(--dark-bg);
            color: #fff;
            padding: 60px 0;
            overflow: hidden;
            position: relative;
        }

        .model-track {
            display: flex;
            gap: 20px;
            width: max-content;
            animation: scroll-left 40s linear infinite;
        }

        @keyframes scroll-left {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        .model-item {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 12px 24px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            white-space: nowrap;
            transition: var(--transition-smooth);
        }

        .model-item:hover {
            background: #fff;
            color: var(--dark-bg);
        }

        /* AIGC Workflow (Timeline) */
        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background: var(--border-color);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: #fff;
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -10px;
        }

        .timeline-content {
            padding: 24px;
            background-color: #fff;
            position: relative;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .timeline-content h3 {
            font-size: 1.15rem;
            color: var(--primary);
            margin-bottom: 8px;
        }

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

        /* Solutions Section */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            transition: var(--transition-smooth);
        }

        .solution-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.06);
        }

        .solution-img-box {
            height: 200px;
            overflow: hidden;
        }

        .solution-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-smooth);
        }

        .solution-card:hover .solution-img-box img {
            transform: scale(1.05);
        }

        .solution-body {
            padding: 24px;
        }

        .solution-body h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--dark-bg);
        }

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

        /* Evaluation Block (Rating Section) */
        .eval-section {
            background-color: var(--light-bg);
        }

        .eval-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: #fff;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            margin-bottom: 40px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            flex-wrap: wrap;
            gap: 20px;
        }

        .eval-score-wrap {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .eval-score {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--secondary);
            line-height: 1;
        }

        .eval-meta h4 {
            font-size: 1.25rem;
            margin-bottom: 4px;
        }

        .stars {
            color: #f59e0b;
            font-size: 1.2rem;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            background: #fff;
        }

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

        th, td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

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

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

        .highlight-row {
            background-color: rgba(0, 82, 204, 0.02);
        }

        .status-badge {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .status-badge.success {
            background-color: #d1fae5;
            color: #065f46;
        }

        .status-badge.danger {
            background-color: #fee2e2;
            color: #991b1b;
        }

        /* Token Price Reference & Tag Cloud */
        .token-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .price-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .price-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: #fff;
            padding: 16px 20px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .price-item-info h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .price-item-info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .price-tag {
            font-weight: 700;
            color: var(--accent);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-content: flex-start;
        }

        .cloud-tag {
            padding: 8px 16px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-main);
            font-weight: 500;
            transition: var(--transition-smooth);
        }

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

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

        .training-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 24px 20px;
            border-radius: 12px;
            text-align: center;
            transition: var(--transition-smooth);
        }

        .training-card:hover {
            border-color: var(--secondary);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(121, 40, 202, 0.05);
        }

        .training-card h3 {
            font-size: 1.05rem;
            color: var(--dark-bg);
            margin-bottom: 12px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .cert-badge {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--secondary);
            background: rgba(121, 40, 202, 0.08);
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 600;
        }

        /* FAQ Accordion */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .faq-q {
            padding: 20px 24px;
            font-weight: 700;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            background: #fff;
        }

        .faq-q::after {
            content: '+';
            font-size: 1.25rem;
            color: var(--text-muted);
            transition: var(--transition-smooth);
        }

        .faq-item.active .faq-q::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: var(--light-bg);
        }

        .faq-a-inner {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid var(--border-color);
        }

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

        .review-card {
            background: #fff;
            border: 1px solid var(--border-color);
            padding: 30px;
            border-radius: 16px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.01);
            position: relative;
        }

        .review-text {
            color: var(--text-main);
            font-size: 0.95rem;
            margin-bottom: 24px;
            font-style: italic;
        }

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

        .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }

        .user-info h4 {
            font-size: 0.95rem;
            color: var(--dark-bg);
        }

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

        /* Articles & Knowledge base */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .article-card {
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .article-body h3 {
            font-size: 1.15rem;
            color: var(--dark-bg);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .article-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* Contact Us & Application Form */
        .contact-section {
            background-color: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 60px;
            align-items: start;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-card {
            background: #fff;
            padding: 30px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .contact-method {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }

        .contact-method:last-child {
            margin-bottom: 0;
        }

        .contact-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-method-detail h4 {
            font-size: 1rem;
            margin-bottom: 4px;
            color: var(--dark-bg);
        }

        .contact-method-detail p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .qr-area {
            display: flex;
            gap: 20px;
            align-items: center;
            background: var(--light-bg);
            padding: 16px;
            border-radius: 12px;
            margin-top: 20px;
        }

        .qr-area img {
            width: 80px;
            height: 80px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .form-card {
            background: #fff;
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

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

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

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            font-size: 0.95rem;
            transition: var(--transition-smooth);
            background-color: var(--light-bg);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
        }

        select.form-control {
            cursor: pointer;
        }

        .btn-submit {
            width: 100%;
            background: var(--gradient-primary);
            color: #fff;
            padding: 14px;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(0, 82, 204, 0.2);
            transition: var(--transition-smooth);
        }

        .btn-submit:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 15px rgba(0, 82, 204, 0.3);
        }

        /* Footer & Copyright */
        footer {
            background-color: var(--dark-bg);
            color: #94a3b8;
            padding: 80px 0 30px 0;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 60px;
        }

        .footer-logo-area {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .footer-logo-area p {
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-title {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: #94a3b8;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 15px;
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .friend-links a {
            font-size: 0.85rem;
            color: #64748b;
        }

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

        .copyright-area {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 0.85rem;
        }

        .copyright-area a.ai-page-home-link {
            color: var(--primary-light);
            margin: 0 5px;
            font-weight: 600;
        }

        /* Floating Sidebar Buttons */
        .floating-sidebar {
            position: fixed;
            bottom: 40px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            background: #fff;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: var(--transition-smooth);
            border: 1px solid var(--border-color);
        }

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

        .float-btn .tooltip-panel {
            position: absolute;
            right: 65px;
            background: #fff;
            color: var(--text-main);
            padding: 16px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            border: 1px solid var(--border-color);
            display: none;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            width: 140px;
        }

        .float-btn .tooltip-panel img {
            width: 100px;
            height: 100px;
        }

        .float-btn .tooltip-panel span {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
        }

        .float-btn:hover .tooltip-panel {
            display: flex;
        }

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

        /* Responsive Layouts */
        @media (max-width: 1024px) {
            .services-grid, .solutions-grid, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .hero h1 {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            nav {
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                display: none;
                flex-direction: column;
                gap: 16px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }

            nav.show {
                display: flex;
            }

            nav ul {
                flex-direction: column;
                gap: 16px;
            }

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

            .hero h1 {
                font-size: 2rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .about-grid, .contact-grid, .token-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .services-grid, .solutions-grid, .reviews-grid, .articles-grid {
                grid-template-columns: 1fr;
            }

            .timeline::after {
                left: 31px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }

            .timeline-item::after {
                left: 21px;
            }

            .right {
                left: 0%;
            }

            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }