/* CSS reset & base vars */
        :root {
            --primary: #5c62ec;
            --primary-glow: rgba(92, 98, 236, 0.15);
            --accent: #d25df2;
            --cyan: #3cdbf0;
            --dark: #0f172a;
            --text-dark: #1e293b;
            --text-light: #64748b;
            --bg-light: #f8fafc;
            --card-bg: rgba(255, 255, 255, 0.85);
            --border-color: rgba(226, 232, 240, 0.8);
            --radii: 16px;
            --gradient-holo: linear-gradient(135deg, rgba(230, 240, 255, 0.8) 0%, rgba(253, 230, 255, 0.8) 50%, rgba(230, 255, 250, 0.8) 100%);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Utility classes for background glow effects */
        .holo-bg {
            background: var(--gradient-holo);
            position: relative;
            z-index: 1;
        }

        .holo-card {
            background: var(--card-bg);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radii);
            box-shadow: 0 10px 30px rgba(92, 98, 236, 0.05), inset 0 1px 0 rgba(255, 255, 255, 0.9);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .holo-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(210, 93, 242, 0.15), 0 0 15px rgba(60, 219, 240, 0.2);
            border-color: rgba(60, 219, 240, 0.5);
        }

        /* Buttons & Badges */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            font-size: 0.95rem;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 4px 15px rgba(92, 98, 236, 0.4);
        }

        .btn-primary:hover {
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(210, 93, 242, 0.6);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.85);
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: scale(1.03);
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(92, 98, 236, 0.1);
            color: var(--primary);
            margin-bottom: 12px;
            border: 1px solid rgba(92, 98, 236, 0.2);
        }

        /* Typography */
        h1, h2, h3, h4 {
            color: var(--dark);
            font-weight: 700;
        }

        h2 {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 48px;
            background: linear-gradient(90deg, var(--dark), var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            position: relative;
        }

        h2::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, var(--cyan), var(--accent));
            margin: 12px auto 0;
            border-radius: 2px;
        }

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

        /* Sections structure */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        /* Header Navigation */
        header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
        }

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

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

        .logo-box img {
            height: 40px;
            width: auto;
        }

        .logo-box span {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        nav {
            display: flex;
            gap: 20px;
        }

        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-size: 0.9rem;
            font-weight: 550;
            transition: color 0.2s ease;
        }

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

        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Hero (No image as required) */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(240, 245, 255, 0.9) 0%, rgba(255, 242, 253, 0.9) 90%);
            padding: 120px 0 100px;
            text-align: center;
            overflow: hidden;
            position: relative;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 400px;
            height: 400px;
            background: radial-gradient(var(--cyan), transparent 60%);
            opacity: 0.25;
            filter: blur(50px);
            transform: translate(-50%, -50%);
            pointer-events: none;
        }

        .hero h1 {
            font-size: 2.8rem;
            line-height: 1.25;
            margin-bottom: 24px;
            font-weight: 800;
            background: linear-gradient(135deg, var(--dark) 30%, var(--primary) 70%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 1.25rem;
            max-width: 750px;
            margin: 0 auto 36px;
            color: var(--text-light);
        }

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

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

        .stat-card {
            text-align: center;
            padding: 30px 20px;
        }

        .stat-card .num {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-card .lbl {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 550;
        }

        /* Services的能力展示 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .service-card {
            padding: 40px 30px;
            position: relative;
        }

        .service-card i {
            display: inline-block;
            width: 60px;
            height: 60px;
            border-radius: 12px;
            background: var(--primary-glow);
            color: var(--primary);
            font-size: 2rem;
            text-align: center;
            line-height: 60px;
            margin-bottom: 24px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
        }

        /* Tag Cloud for models */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 30px;
        }

        .tag-item {
            padding: 8px 16px;
            border-radius: 30px;
            background: #fff;
            border: 1px solid var(--border-color);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-dark);
            transition: all 0.2s ease;
        }

        .tag-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* Content block with layout options */
        .media-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .media-showcase img {
            width: 100%;
            border-radius: var(--radii);
            box-shadow: 0 15px 35px rgba(0,0,0,0.08);
        }

        /* Comparison table styling */
        .table-responsive {
            overflow-x: auto;
            background: #fff;
            border-radius: var(--radii);
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.02);
        }

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

        th, td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.95rem;
        }

        th {
            background-color: #f8fafc;
            color: var(--dark);
            font-weight: 700;
        }

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

        /* Price panel / Token比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .price-card {
            padding: 40px 30px;
            position: relative;
            text-align: center;
        }

        .price-card.featured {
            border: 2px solid var(--primary);
            background: linear-gradient(180deg, rgba(255,255,255,0.95) 0%, rgba(240,245,255,0.9) 100%);
        }

        .price-card .p-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .price-card .p-val {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            margin: 20px 0;
        }

        .price-card ul {
            list-style: none;
            padding: 0;
            margin: 20px 0;
            text-align: left;
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .price-card ul li {
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
        }

        /* Steps / Timeline */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .step-item {
            position: relative;
            padding: 30px 20px;
            text-align: center;
        }

        .step-num {
            display: inline-flex;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--cyan), var(--accent));
            color: #fff;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 20px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }

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

        .review-card {
            padding: 30px;
        }

        .review-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .review-header div .name {
            font-weight: 600;
            color: var(--dark);
        }

        .review-header div .role {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* FAQ accordion */
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            color: var(--text-light);
            font-size: 0.95rem;
            padding-right: 40px;
        }

        .faq-answer p {
            padding-top: 12px;
        }

        .faq-icon::before {
            content: "+";
            font-size: 1.4rem;
            font-weight: 300;
            transition: transform 0.3s ease;
            display: inline-block;
        }

        .faq-item.active .faq-icon::before {
            content: "−";
        }

        /* Form styling */
        .form-section {
            background: radial-gradient(circle at 90% 10%, rgba(230, 240, 255, 0.6) 0%, rgba(255, 255, 255, 0.9) 100%);
        }

        .form-wrapper {
            max-width: 600px;
            margin: 0 auto;
            padding: 40px;
        }

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

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

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.9);
            font-family: inherit;
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: border-color 0.2s ease;
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-glow);
        }

        /* Articles section */
        .articles-list {
            list-style: none;
            padding: 0;
        }

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

        .article-link-item a {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 550;
        }

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

        /* Footer styling */
        footer {
            background-color: #0b0f19;
            color: #94a3b8;
            padding: 60px 0 30px;
            font-size: 0.9rem;
            border-top: 1px solid #1e293b;
        }

        footer h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
        }

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

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .footer-logo img {
            height: 35px;
        }

        .footer-logo span {
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
        }

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

        .footer-bottom a {
            color: #94a3b8;
            text-decoration: none;
            margin-right: 15px;
        }

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

        /* QR Codes & Contacts info */
        .contact-info-list {
            list-style: none;
        }

        .contact-info-list li {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .qr-wrapper {
            display: flex;
            gap: 15px;
            margin-top: 15px;
        }

        .qr-card {
            text-align: center;
            font-size: 0.75rem;
            color: #94a3b8;
        }

        .qr-card img {
            width: 90px;
            height: 90px;
            border-radius: 6px;
            display: block;
            margin-bottom: 5px;
        }

        /* Floating sidebar for Customer Service */
        .float-cs {
            position: fixed;
            right: 20px;
            bottom: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

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

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

        .qr-hover-box {
            display: none;
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 15px;
            border-radius: var(--radii);
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            width: 140px;
            text-align: center;
        }

        .qr-hover-box img {
            width: 110px;
            height: 110px;
            display: block;
            margin-bottom: 8px;
        }

        .qr-hover-box span {
            font-size: 0.8rem;
            color: var(--text-dark);
            font-weight: 600;
        }

        /* Responsive Styles */
        @media (max-width: 1024px) {
            .grid-3, .price-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid, .steps-container {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            .nav-wrapper nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .grid-3, .price-grid, .reviews-grid, .grid-2, .media-showcase {
                grid-template-columns: 1fr;
            }
            .stats-grid, .steps-container {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero {
                padding: 80px 0 60px;
            }
            .form-wrapper {
                padding: 20px;
            }
        }

        /* Mobile Nav active state */
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid var(--border-color);
            padding: 20px;
            gap: 15px;
        }

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