:root {
            --primary: #00e1d9;
            --primary-hover: #00c2bb;
            --secondary: #7000ff;
            --dark: #0f172a;
            --light: #f8fafc;
            --text-dark: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --accent: #ff007f;
            --success: #10b981;
            --container-max: 1200px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

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

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

        /* Header */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
        }

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

        .logo-wrap {
            display: flex;
            align-items: center;
            height: 40px;
        }

        .ai-page-logo {
            max-height: 100%;
            width: auto;
        }

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

        .nav-links a {
            font-weight: 500;
            font-size: 14px;
            color: var(--text-dark);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-links a:hover {
            color: var(--secondary);
            background-color: rgba(112, 0, 255, 0.05);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .btn-nav {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            color: #fff !important;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(112, 0, 255, 0.3);
        }

        .btn-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(112, 0, 255, 0.4);
        }

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

        .nav-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 3px;
            transition: 0.3s;
        }

        /* Hero */
        .hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 225, 217, 0.15), transparent 40%),
                        radial-gradient(circle at 20% 80%, rgba(112, 0, 255, 0.1), transparent 50%),
                        #fff;
            text-align: center;
            position: relative;
        }

        .hero-tag {
            display: inline-block;
            background: linear-gradient(90deg, rgba(112, 0, 255, 0.1), rgba(0, 225, 217, 0.1));
            color: var(--secondary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 24px;
            border: 1px solid rgba(112, 0, 255, 0.15);
        }

        .hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto 40px;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 16px;
            transition: all 0.3s;
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            box-shadow: 0 8px 25px rgba(0, 225, 217, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 225, 217, 0.4);
        }

        .btn-secondary {
            background: #fff;
            color: var(--text-dark);
            border: 1px solid var(--border);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
        }

        .btn-secondary:hover {
            background: var(--light);
            transform: translateY(-3px);
        }

        /* Section Layout */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border);
        }

        .section-light {
            background-color: #fff;
        }

        .section-title-wrap {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Stats Card Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            transition: all 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 15px 35px rgba(0, 225, 217, 0.1);
        }

        .stat-card .num {
            font-size: 36px;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 5px;
        }

        .stat-card .label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 600;
        }

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

        .about-content h3 {
            font-size: 24px;
            color: var(--dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 15px;
        }

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

        .features-list li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            font-weight: 600;
            font-size: 15px;
        }

        .features-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--success);
            font-weight: 900;
        }

        .about-sidebar {
            background: linear-gradient(135deg, rgba(112, 0, 255, 0.05), rgba(0, 225, 217, 0.05));
            border: 1px dashed var(--secondary);
            border-radius: 16px;
            padding: 30px;
        }

        .about-sidebar h4 {
            font-size: 18px;
            margin-bottom: 15px;
            color: var(--secondary);
            font-weight: 700;
        }

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

        .service-card {
            background: #fff;
            border: 1px solid var(--border);
            padding: 30px;
            border-radius: 12px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.05);
            border-color: var(--secondary);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--secondary);
            opacity: 0;
            transition: 0.3s;
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            font-size: 32px;
            margin-bottom: 20px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .step-item {
            background: #fff;
            border: 1px solid var(--border);
            padding: 25px;
            border-radius: 12px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px;
            font-size: 18px;
            box-shadow: 0 4px 10px rgba(112, 0, 255, 0.2);
        }

        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Compare Section */
        .compare-table-wrapper {
            overflow-x: auto;
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
        }

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

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }

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

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

        .compare-table td strong {
            color: var(--secondary);
        }

        .badge-star {
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 700;
            font-size: 12px;
        }

        /* Token Price Cloud */
        .cloud-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .cloud-item {
            background: #fff;
            border: 1px solid var(--border);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.3s;
            cursor: pointer;
        }

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

        /* Cases Section */
        .case-showcase {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }

        .case-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all 0.3s;
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.06);
        }

        .case-img-box {
            position: relative;
            background: var(--light);
            overflow: hidden;
        }

        .case-img-box img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: transform 0.5s;
        }

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

        .case-content {
            padding: 24px;
        }

        .case-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        .case-content h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-content p {
            color: var(--text-muted);
            font-size: 14px;
        }

        /* Timeline */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: var(--border);
            transform: translateX(-50%);
        }

        .timeline-item {
            margin-bottom: 40px;
            position: relative;
            width: 50%;
            padding-right: 30px;
        }

        .timeline-item:nth-child(even) {
            margin-left: 50%;
            padding-right: 0;
            padding-left: 30px;
        }

        .timeline-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            position: absolute;
            right: -8px;
            top: 5px;
            border: 4px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
            right: auto;
        }

        .timeline-content {
            background: #fff;
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: 8px;
        }

        .timeline-content h4 {
            font-weight: 700;
            margin-bottom: 8px;
            font-size: 16px;
        }

        .timeline-content p {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border);
            padding: 24px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.01);
        }

        .testi-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

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

        .avatar-1 { background-color: #8b5cf6; }
        .avatar-2 { background-color: #3b82f6; }
        .avatar-3 { background-color: #10b981; }
        .avatar-4 { background-color: #f59e0b; }
        .avatar-5 { background-color: #ec4899; }
        .avatar-6 { background-color: #06b6d4; }

        .testi-info h5 {
            font-size: 15px;
            font-weight: 700;
        }

        .testi-info p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .testimonial-card p.content {
            font-size: 14px;
            color: var(--text-dark);
            line-height: 1.5;
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-trigger {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            text-align: left;
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-trigger span.icon {
            font-size: 20px;
            color: var(--text-muted);
            transition: 0.3s;
        }

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

        .faq-content p {
            padding: 18px 24px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .faq-item.active {
            border-color: var(--secondary);
        }

        .faq-item.active .faq-trigger {
            color: var(--secondary);
        }

        .faq-item.active .faq-trigger span.icon {
            transform: rotate(45deg);
            color: var(--secondary);
        }

        .faq-item.active .faq-content {
            max-height: 200px;
        }

        /* Form Block */
        .form-section {
            background: linear-gradient(135deg, rgba(112, 0, 255, 0.02), rgba(0, 225, 217, 0.02));
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: start;
        }

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

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 14px;
            color: var(--dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            transition: all 0.3s;
            background-color: var(--light);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--secondary);
            background-color: #fff;
            box-shadow: 0 0 0 3px rgba(112, 0, 255, 0.1);
        }

        .btn-submit {
            width: 100%;
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            color: #fff;
            font-weight: 700;
            padding: 14px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(112, 0, 255, 0.2);
            transition: 0.3s;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(112, 0, 255, 0.3);
        }

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

        .contact-item {
            margin-bottom: 24px;
        }

        .contact-item h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
        }

        .contact-item p {
            color: var(--text-muted);
            font-size: 14px;
        }

        .kefu-qr-wrap {
            margin-top: 20px;
            text-align: center;
        }

        .kefu-qr-wrap img {
            max-width: 150px;
            margin: 10px auto;
            border: 1px solid var(--border);
            padding: 5px;
            border-radius: 6px;
        }

        /* Articles & Wiki */
        .article-section {
            background-color: #fff;
        }

        .wiki-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .article-item {
            padding: 20px;
            border: 1px solid var(--border);
            border-radius: 10px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: 0.3s;
        }

        .article-item:hover {
            border-color: var(--primary);
            box-shadow: 0 4px 15px rgba(0, 225, 217, 0.05);
        }

        .article-item a {
            font-weight: 700;
            font-size: 16px;
            color: var(--dark);
        }

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

        .article-meta {
            font-size: 12px;
            color: var(--text-muted);
        }

        .glossary-box {
            background-color: var(--light);
            border-radius: 12px;
            padding: 25px;
            border: 1px solid var(--border);
        }

        .glossary-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .glossary-item h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 4px;
        }

        .glossary-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Footer */
        footer {
            background-color: var(--dark);
            color: #94a3b8;
            padding: 80px 0 30px;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-logo img {
            max-height: 45px;
            margin-bottom: 20px;
        }

        .footer-info p {
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .footer-links-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .footer-links-grid h5 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 15px;
        }

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

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

        .footer-right {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .friend-links-box {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 10px;
        }

        .friend-links-box h5 {
            color: #fff;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .friend-links-box a {
            display: inline-block;
            margin-right: 12px;
            margin-bottom: 8px;
            color: #94a3b8;
            font-size: 13px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            text-align: center;
            font-size: 12px;
        }

        /* Float Customer Service */
        .float-kefu {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 50%;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            cursor: pointer;
            transition: all 0.3s;
        }

        .float-kefu:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
        }

        .float-kefu svg {
            width: 28px;
            height: 28px;
            fill: var(--secondary);
        }

        .kefu-popover {
            position: absolute;
            bottom: 75px;
            right: 0;
            background: #fff;
            border: 1px solid var(--border);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            width: 220px;
            display: none;
            text-align: center;
        }

        .float-kefu:hover .kefu-popover {
            display: block;
        }

        .kefu-popover p {
            font-size: 12px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 0;
                padding-top: 40px;
            }

            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                border-bottom: 1px solid var(--border);
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }

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

            .nav-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 32px;
            }

            .about-wrap, .form-grid, .wiki-grid, .case-showcase {
                grid-template-columns: 1fr;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item {
                width: 100%;
                padding-left: 45px;
                padding-right: 0;
            }

            .timeline-item:nth-child(even) {
                margin-left: 0;
                padding-left: 45px;
            }

            .timeline-dot {
                left: 12px !important;
                right: auto;
            }

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

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