:root {
            --bg-main: #0a0516;
            --bg-card: rgba(20, 12, 38, 0.85);
            --bg-nav: rgba(10, 5, 22, 0.95);
            --primary: #ff007f;
            --primary-glow: rgba(255, 0, 127, 0.4);
            --secondary: #8a2be2;
            --secondary-glow: rgba(138, 43, 226, 0.4);
            --cyan: #00f0ff;
            --cyan-glow: rgba(0, 240, 255, 0.4);
            --text-main: #ffffff;
            --text-muted: #a39eb9;
            --text-dark: #0a0516;
            --border-glow: rgba(255, 0, 127, 0.25);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            background-color: var(--bg-main);
            color: var(--text-main);
            font-family: var(--font-sans);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(255, 0, 127, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(138, 43, 226, 0.1) 0%, transparent 50%);
            background-attachment: fixed;
        }

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

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        h2 {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 3rem;
            color: var(--text-main);
            position: relative;
            text-transform: uppercase;
        }

        h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            margin: 10px auto 0;
            border-radius: 2px;
        }

        p {
            color: var(--text-muted);
        }

        a {
            color: var(--cyan);
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-decoration: none;
            gap: 8px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-main);
            box-shadow: 0 4px 15px var(--primary-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 0, 127, 0.6);
            color: var(--text-main);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--cyan);
            color: var(--cyan);
            box-shadow: 0 0 10px var(--cyan-glow);
        }

        .btn-outline:hover {
            background: var(--cyan);
            color: var(--text-dark);
            transform: translateY(-2px);
            box-shadow: 0 0 20px var(--cyan);
        }

        /* Navigation */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--bg-nav);
            border-bottom: 1px solid rgba(255, 0, 127, 0.15);
            backdrop-filter: blur(10px);
        }

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

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

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

        .brand-name {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--text-main), var(--cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-link {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s;
        }

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

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

        .nav-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background: var(--text-main);
            transition: all 0.3s;
        }

        /* Sections base */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* Hero (No Image) */
        .hero-section {
            padding-top: 150px;
            padding-bottom: 100px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid var(--primary);
            color: var(--primary);
            border-radius: 20px;
            font-size: 0.9rem;
            margin-bottom: 20px;
            font-weight: 600;
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.2);
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--text-main) 30%, var(--primary) 70%, var(--cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 40px;
            color: var(--text-muted);
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        /* Data Cards (Hero Bottom) */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .data-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .data-card:hover {
            border-color: var(--cyan);
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 240, 255, 0.1);
        }

        .data-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--cyan);
            margin-bottom: 8px;
        }

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

        /* About Us */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--cyan);
        }

        .about-text p {
            margin-bottom: 20px;
            font-size: 1.05rem;
        }

        .about-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
        }

        .stat-title {
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 5px;
        }

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

        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: 16px;
            padding: 30px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

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

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(255, 0, 127, 0.2);
            border-color: var(--primary);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--cyan);
        }

        .service-title {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--text-main);
        }

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

        /* Flow Steps */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-step {
            background: rgba(255, 255, 255, 0.02);
            border: 1px dashed rgba(255, 0, 127, 0.3);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-main);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 15px;
        }

        /* Solutions */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .solution-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 30px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .solution-header h3 {
            color: var(--cyan);
            margin-bottom: 10px;
        }

        .solution-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .tag {
            background: rgba(0, 240, 255, 0.1);
            color: var(--cyan);
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.8rem;
        }

        /* Map Network */
        .network-section {
            text-align: center;
        }

        .network-container {
            background: var(--bg-card);
            border: 1px solid rgba(255, 0, 127, 0.15);
            padding: 40px;
            border-radius: 16px;
            margin-top: 30px;
        }

        .network-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .network-item {
            background: rgba(255, 255, 255, 0.02);
            padding: 20px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* Technical Standards */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .tech-box {
            border: 1px solid rgba(0, 240, 255, 0.2);
            background: rgba(0, 5, 15, 0.6);
            padding: 25px;
            border-radius: 12px;
        }

        .tech-box h4 {
            color: var(--cyan);
            margin-bottom: 10px;
        }

        /* Cases Grid (With Images) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: transform 0.3s;
        }

        .case-card:hover {
            transform: scale(1.02);
            border-color: var(--primary);
        }

        .case-img-container {
            position: relative;
            width: 100%;
            height: 240px;
            overflow: hidden;
            background: #110c24;
        }

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

        .case-content {
            padding: 24px;
        }

        .case-title {
            font-size: 1.25rem;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        /* Evaluation Table */
        .table-wrapper {
            overflow-x: auto;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid rgba(255, 0, 127, 0.2);
            padding: 20px;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        th {
            color: var(--cyan);
            font-weight: 600;
        }

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

        .rating-badge {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 20px;
            display: inline-block;
            font-weight: bold;
        }

        /* Token Table */
        .token-section {
            background: rgba(10, 5, 22, 0.4);
        }

        /* Training Sections */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .training-card {
            background: linear-gradient(135deg, rgba(20, 12, 38, 0.9), rgba(10, 5, 22, 0.9));
            border: 1px solid rgba(138, 43, 226, 0.3);
            border-radius: 16px;
            padding: 30px;
        }

        .training-card h3 {
            color: var(--primary);
            margin-bottom: 20px;
        }

        .cert-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cert-list li {
            position: relative;
            padding-left: 24px;
        }

        .cert-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--cyan);
            font-weight: bold;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-trigger {
            width: 100%;
            padding: 20px;
            background: transparent;
            border: none;
            color: var(--text-main);
            text-align: left;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-trigger::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--cyan);
            transition: transform 0.3s;
        }

        .faq-item.active .faq-trigger::after {
            content: '−';
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(255, 255, 255, 0.01);
        }

        .faq-content p {
            padding: 0 20px 20px;
            font-size: 0.95rem;
        }

        /* Self-check Grid & Glossary */
        .check-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .check-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
        }

        /* Testimonials */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 0, 127, 0.1);
            padding: 25px;
            border-radius: 12px;
            position: relative;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 15px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 15px;
        }

        .author-info h4 {
            font-size: 0.95rem;
            color: var(--cyan);
        }

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

        /* Articles (Knowledge Base) */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .article-card h3 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .article-card a {
            margin-top: 15px;
            align-self: flex-start;
        }

        /* Form section */
        .form-section {
            background: linear-gradient(180deg, var(--bg-main), rgba(20, 12, 38, 0.8));
        }

        .form-wrapper {
            max-width: 700px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid rgba(255, 0, 127, 0.2);
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--cyan);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: rgba(10, 5, 22, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            color: var(--text-main);
            outline: none;
            transition: border-color 0.3s;
        }

        .form-control:focus {
            border-color: var(--primary);
        }

        select.form-control option {
            background-color: var(--bg-main);
            color: var(--text-main);
        }

        /* Footer */
        footer {
            background: #05020a;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 30px;
        }

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

        .footer-logo-area p {
            margin: 15px 0;
            font-size: 0.95rem;
        }

        .footer-title {
            font-size: 1.1rem;
            color: var(--cyan);
            margin-bottom: 20px;
            font-weight: 600;
        }

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .qrcode-container {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-top: 10px;
        }

        .qrcode-container img {
            width: 90px;
            height: 90px;
            border-radius: 4px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom-links {
            display: flex;
            gap: 15px;
        }

        /* Float Widget */
        .float-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
            transition: all 0.3s;
            position: relative;
        }

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

        .float-btn svg {
            width: 24px;
            height: 24px;
            fill: #fff;
        }

        .float-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-card);
            border: 1px solid var(--primary);
            border-radius: 12px;
            padding: 20px;
            width: 220px;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.5);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            text-align: center;
        }

        .float-btn:hover .float-popover {
            opacity: 1;
            visibility: visible;
        }

        .float-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 10px;
        }

        /* Back to top */
        .back-to-top {
            display: none;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .service-grid, .tech-grid, .cases-grid, .reviews-grid, .articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-grid, .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-nav);
                border-bottom: 1px solid rgba(255, 0, 127, 0.15);
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-toggle {
                display: flex;
            }

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

            .about-grid, .solution-grid, .training-grid {
                grid-template-columns: 1fr;
            }

            .service-grid, .tech-grid, .cases-grid, .reviews-grid, .articles-grid, .data-grid, .flow-grid, .check-grid, .network-grid {
                grid-template-columns: 1fr;
            }

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

            .form-wrapper {
                padding: 20px;
            }

            h2 {
                font-size: 1.8rem;
            }
        }