:root {
            --primary: #0052d4;
            --primary-bright: #00f2fe;
            --secondary: #7928ca;
            --accent: #ff007f;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 10px 30px rgba(0,0,0,0.06);
            --shadow-lg: 0 20px 40px rgba(0,0,0,0.1);
        }

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

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

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

        section {
            padding: 80px 0;
            position: relative;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-dark);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 15px;
            display: inline-block;
        }

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

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white) !important;
            box-shadow: 0 4px 15px rgba(0, 82, 212, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 82, 212, 0.4);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: var(--bg-white);
        }

        /* 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);
        }

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

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

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

        .nav-links {
            display: flex;
            gap: 20px;
            list-style: none;
            align-items: center;
        }

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

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

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

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background: var(--text-dark);
            border-radius: 3px;
            transition: var(--transition);
        }

        /* Hero Section (No Image) */
        .hero {
            padding: 150px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 242, 254, 0.15) 0%, rgba(121, 40, 202, 0.05) 50%, rgba(248, 250, 252, 1) 100%);
            text-align: center;
        }

        .hero-badge {
            background: linear-gradient(135deg, rgba(0, 82, 212, 0.1), rgba(121, 40, 202, 0.1));
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 25px;
            letter-spacing: 1px;
            border: 1px solid rgba(0, 82, 212, 0.2);
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-dark);
            margin-bottom: 25px;
            letter-spacing: -0.5px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -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;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
        }

        /* Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 50px;
        }

        .stat-card {
            background: var(--bg-white);
            padding: 25px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 82, 212, 0.3);
        }

        .stat-num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
        }

        .stat-num span {
            font-size: 1.2rem;
            font-weight: 500;
        }

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

        /* About Section */
        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .about-content {
            background: var(--bg-white);
            padding: 40px;
            border-radius: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

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

        .about-text {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .about-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .about-feat-item span {
            background: rgba(0, 82, 212, 0.1);
            color: var(--primary);
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            margin-top: 3px;
        }

        .about-feat-text h4 {
            font-size: 1rem;
            margin-bottom: 5px;
        }

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

        .about-card {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .about-card::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
        }

        .about-card h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .about-card p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 30px;
        }

        .about-card .btn-light {
            background: var(--bg-white);
            color: var(--primary);
            font-weight: 600;
        }

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

        .service-card {
            background: var(--bg-white);
            border-radius: 20px;
            padding: 35px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
        }

        .service-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
            border-radius: 0 0 20px 20px;
        }

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

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

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .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(--bg-light);
            color: var(--text-muted);
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 0.8rem;
            border: 1px solid var(--border-color);
        }

        /* Flow & Workflow */
        .timeline {
            max-width: 900px;
            margin: 0 auto;
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--primary), var(--secondary));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            width: 50%;
            padding: 20px 40px;
            box-sizing: border-box;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            top: 25px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--bg-white);
            border: 4px solid var(--primary);
            z-index: 1;
            transition: var(--transition);
        }

        .timeline-item:hover::after {
            background: var(--accent);
            border-color: var(--bg-white);
            box-shadow: 0 0 10px var(--accent);
        }

        .timeline-left {
            left: 0;
            text-align: right;
        }

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

        .timeline-right {
            left: 50%;
        }

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

        .timeline-card {
            background: var(--bg-white);
            padding: 25px;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 82, 212, 0.2);
        }

        .timeline-step {
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 5px;
        }

        .timeline-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--text-dark);
        }

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

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

        .solution-card {
            background: var(--bg-white);
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 25px;
            align-items: flex-start;
        }

        .solution-badge {
            background: linear-gradient(135deg, rgba(0, 82, 212, 0.1), rgba(121, 40, 202, 0.1));
            color: var(--primary);
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            flex-shrink: 0;
        }

        .solution-body h3 {
            font-size: 1.4rem;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .solution-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 15px;
            line-height: 1.6;
        }

        .solution-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .solution-list li {
            font-size: 0.85rem;
            color: var(--primary);
            background: rgba(0, 82, 212, 0.05);
            padding: 4px 12px;
            border-radius: 30px;
            font-weight: 500;
        }

        /* Network Section */
        .network-box {
            background: var(--bg-white);
            border-radius: 24px;
            padding: 50px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            text-align: center;
        }

        .network-map-placeholder {
            margin: 40px auto;
            max-width: 800px;
            padding: 60px 20px;
            background: radial-gradient(circle, rgba(0, 82, 212, 0.05) 0%, rgba(121, 40, 202, 0.05) 100%);
            border-radius: 16px;
            border: 1px dashed var(--primary);
            position: relative;
        }

        .map-dot {
            position: absolute;
            width: 12px;
            height: 12px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(255, 0, 127, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(255, 0, 127, 0); }
            100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(255, 0, 127, 0); }
        }

        .map-dot-1 { top: 60%; left: 55%; } /* 西安核心 */
        .map-dot-2 { top: 35%; left: 75%; } /* 北京 */
        .map-dot-3 { top: 75%; left: 80%; } /* 上海 */
        .map-dot-4 { top: 85%; left: 70%; } /* 深圳 */
        .map-dot-5 { top: 70%; left: 45%; } /* 成都 */

        .network-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .network-node h4 {
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

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

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

        .case-card {
            background: var(--bg-white);
            border-radius: 20px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .case-img-wrap {
            position: relative;
            overflow: hidden;
            background: var(--bg-light);
            aspect-ratio: 16/9;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .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-info {
            padding: 30px;
        }

        .case-tag {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 10px;
            display: inline-block;
        }

        .case-info h3 {
            font-size: 1.3rem;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .case-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .case-meta {
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Evaluation Section */
        .eval-section {
            background: linear-gradient(180deg, var(--bg-light) 0%, rgba(0, 82, 212, 0.03) 100%);
        }

        .eval-score-card {
            background: var(--bg-white);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            text-align: center;
            max-width: 600px;
            margin: 0 auto 50px;
        }

        .eval-stars {
            font-size: 2rem;
            color: #ffb800;
            margin-bottom: 15px;
        }

        .eval-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }

        .eval-number span {
            font-size: 1.5rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .eval-score-card h3 {
            font-size: 1.4rem;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background: var(--bg-white);
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

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

        .eval-table th, .eval-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .eval-table th {
            background: var(--bg-light);
            font-weight: 600;
            color: var(--text-dark);
        }

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

        .eval-table td strong {
            color: var(--primary);
        }

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

        .token-card {
            background: var(--bg-white);
            border-radius: 20px;
            border: 1px solid var(--border-color);
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .token-card.featured {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            position: relative;
            transform: scale(1.05);
        }

        .token-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            padding: 4px 15px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .token-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--text-dark);
        }

        .token-price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .token-price span {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .token-features {
            list-style: none;
            margin-bottom: 25px;
            text-align: left;
        }

        .token-features li {
            padding: 8px 0;
            color: var(--text-muted);
            font-size: 0.9rem;
            border-bottom: 1px dashed var(--border-color);
            display: flex;
            justify-content: space-between;
        }

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

        .training-card {
            background: var(--bg-white);
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .training-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(121, 40, 202, 0.3);
        }

        .training-card h3 {
            font-size: 1.5rem;
            color: var(--text-dark);
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .training-card h3::before {
            content: '🎓';
        }

        .training-desc {
            color: var(--text-muted);
            margin-bottom: 25px;
            font-size: 0.95rem;
        }

        .course-list {
            list-style: none;
        }

        .course-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .course-item:last-child {
            border-bottom: none;
        }

        .course-title {
            font-weight: 600;
            color: var(--text-dark);
        }

        .course-badge {
            background: rgba(121, 40, 202, 0.1);
            color: var(--secondary);
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 500;
        }

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

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 25px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
            color: var(--text-dark);
            transition: var(--transition);
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active .faq-question {
            color: var(--primary);
        }

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

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

        .faq-answer p {
            padding: 20px 25px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin: 0;
        }

        /* Terms & News Grid */
        .terms-news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .terms-box, .news-box {
            background: var(--bg-white);
            padding: 40px;
            border-radius: 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .terms-list {
            list-style: none;
        }

        .term-item {
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 15px;
        }

        .term-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .term-name {
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

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

        .news-list {
            list-style: none;
        }

        .news-item {
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .news-title {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
        }

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

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Contact & Form */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: start;
        }

        .form-card {
            background: var(--bg-white);
            border-radius: 24px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group-full {
            grid-column: span 2;
        }

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

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

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(0, 82, 212, 0.1);
        }

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

        .info-card {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            padding: 40px;
            border-radius: 24px;
            box-shadow: var(--shadow-md);
        }

        .info-card h3 {
            font-size: 1.6rem;
            margin-bottom: 25px;
            border-bottom: 1px solid rgba(255,255,255,0.2);
            padding-bottom: 15px;
        }

        .info-list {
            list-style: none;
            margin-bottom: 35px;
        }

        .info-list li {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .info-icon {
            font-size: 1.5rem;
            opacity: 0.9;
        }

        .qrcode-box {
            background: rgba(255, 255, 255, 0.1);
            padding: 20px;
            border-radius: 16px;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.15);
        }

        .qrcode-box img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            margin-bottom: 10px;
        }

        .qrcode-box p {
            font-size: 0.85rem;
            opacity: 0.9;
        }

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

        .testimonial-card {
            background: var(--bg-white);
            border-radius: 20px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 82, 212, 0.2);
        }

        .testimonial-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 20px;
            font-style: italic;
        }

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

        .testimonial-avatar {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary-bright), var(--primary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-white);
            font-weight: 700;
            font-size: 1.2rem;
        }

        .testimonial-meta h4 {
            font-size: 0.95rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }

        .testimonial-meta p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-logo-area h3 {
            color: var(--bg-white);
            font-size: 1.4rem;
            margin-bottom: 15px;
        }

        .footer-logo-area p {
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .footer-links-title {
            color: var(--bg-white);
            font-weight: 600;
            margin-bottom: 20px;
            font-size: 1.05rem;
            position: relative;
        }

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

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--bg-white);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid #1e293b;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 15px;
        }

        .friend-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

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

        .friend-links a:hover {
            color: var(--bg-white);
        }

        /* Floating Widgets */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-white);
            color: var(--text-dark);
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .float-btn:hover {
            background: var(--primary);
            color: var(--bg-white);
            transform: translateY(-3px);
        }

        .float-btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--bg-white);
            border: none;
        }

        .float-qr-hover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            display: none;
            text-align: center;
            width: 150px;
        }

        .float-qr-hover img {
            width: 120px;
            height: 120px;
            border-radius: 6px;
        }

        .float-qr-hover p {
            color: var(--text-dark);
            font-size: 0.8rem;
            margin-top: 5px;
        }

        .float-btn:hover .float-qr-hover {
            display: block;
        }

        .back-to-top {
            opacity: 0;
            pointer-events: none;
        }

        .back-to-top.show {
            opacity: 1;
            pointer-events: auto;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
            .token-grid { grid-template-columns: 1fr; }
            .token-card.featured { transform: none; }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-white);
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }

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

            .nav-toggle {
                display: flex;
            }

            .hero h1 { font-size: 2rem; }
            .about-grid, .contact-grid, .terms-news-grid, .training-grid, .solutions-grid, .case-grid {
                grid-template-columns: 1fr;
            }

            .timeline::before { left: 20px; }
            .timeline-item { width: 100%; padding: 20px 0 20px 40px; text-align: left; }
            .timeline-item::after { left: 10px; }
            .timeline-left::after { right: auto; left: 10px; }

            .network-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-top { grid-template-columns: 1fr; }
            .form-grid { grid-template-columns: 1fr; }
            .form-group-full { grid-column: span 1; }
        }