/* CSS Reset & Variables */
        :root {
            --primary: #0052d9;
            --primary-hover: #003eb3;
            --secondary: #00c2ff;
            --text-dark: #1d2129;
            --text-muted: #505a69;
            --text-light: #86909c;
            --bg-light: #f7f8fa;
            --bg-white: #ffffff;
            --border-color: #e5e6eb;
            --shadow-sm: 0 2px 8px rgba(0, 82, 217, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 82, 217, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 82, 217, 0.12);
            --container-max: 1200px;
            --transition-base: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-dark);
            line-height: 1.6;
        }

        body {
            background-color: var(--bg-light);
            overflow-x: hidden;
        }

        /* Common Layout Components */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            padding: 90px 0;
            position: relative;
        }

        .section-light {
            background-color: var(--bg-white);
        }

        .section-gray {
            background-color: var(--bg-light);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header h2 {
            font-size: 32px;
            color: var(--text-dark);
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            display: block;
            width: 40px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin: 12px auto 0;
            border-radius: 2px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition-base);
            cursor: pointer;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #006cff);
            color: var(--bg-white);
            box-shadow: 0 4px 14px rgba(0, 82, 217, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 82, 217, 0.4);
            background: var(--primary-hover);
        }

        .btn-secondary {
            background: var(--bg-white);
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-secondary:hover {
            background: var(--bg-light);
            transform: translateY(-2px);
        }

        /* Header Navigation */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            box-shadow: var(--shadow-sm);
            z-index: 1000;
            transition: var(--transition-base);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 24px;
        }

        .nav-menu li a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition-base);
        }

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

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-dark);
            margin: 5px 0;
            transition: var(--transition-base);
        }

        /* Hero Section (No Images Allowed) */
        .hero {
            padding-top: 140px;
            padding-bottom: 90px;
            background: radial-gradient(circle at 80% 20%, rgba(0, 194, 255, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 10% 80%, rgba(0, 82, 217, 0.06) 0%, transparent 50%),
                        var(--bg-white);
            text-align: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            background-color: rgba(0, 82, 217, 0.06);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero h1 {
            font-size: 46px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero h1 span {
            background: linear-gradient(120deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 36px;
        }

        .hero-btns {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 48px;
        }

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

        .stat-card {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 24px;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }

        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 82, 217, 0.2);
        }

        .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* About & Platform Section */
        .about-wrap {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

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

        .about-content p {
            color: var(--text-muted);
            margin-bottom: 18px;
            font-size: 15px;
        }

        .about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 28px;
        }

        .about-feat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .about-feat-item svg {
            color: var(--secondary);
            flex-shrink: 0;
        }

        .about-media {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .about-media img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: var(--transition-base);
        }

        .about-media img:hover {
            transform: scale(1.03);
        }

        /* Services Grid */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 32px;
            transition: var(--transition-base);
            position: relative;
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(0, 82, 217, 0.3);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background-color: rgba(0, 82, 217, 0.08);
            color: var(--primary);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-dark);
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        /* Model Badge Cloud */
        .badge-cloud-container {
            margin-top: 48px;
            text-align: center;
        }

        .badge-cloud-title {
            font-size: 14px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .badge-cloud {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            max-width: 900px;
            margin: 0 auto;
        }

        .badge {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition-base);
        }

        .badge:hover {
            background-color: var(--primary);
            color: var(--bg-white);
            border-color: var(--primary);
        }

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

        .workflow-step {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 32px 24px;
            border-radius: 8px;
            text-align: center;
            position: relative;
        }

        .step-num {
            width: 36px;
            height: 36px;
            background-color: var(--primary);
            color: var(--bg-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px;
            font-size: 15px;
        }

        .workflow-step h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        /* Comparison Board */
        .comparison-board {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 40px;
            align-items: stretch;
        }

        .rating-card {
            background: linear-gradient(135deg, #0d3880, #002366);
            color: var(--bg-white);
            padding: 48px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            text-align: center;
            box-shadow: var(--shadow-lg);
        }

        .rating-title {
            font-size: 18px;
            font-weight: 600;
            opacity: 0.8;
            margin-bottom: 12px;
        }

        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 6px;
            margin-bottom: 20px;
        }

        .rating-stars svg {
            width: 28px;
            height: 28px;
            fill: #ffb700;
        }

        .rating-score {
            font-size: 72px;
            font-weight: 800;
            line-height: 1;
            margin-bottom: 8px;
            color: var(--bg-white);
        }

        .rating-max {
            font-size: 16px;
            opacity: 0.6;
            margin-bottom: 24px;
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background-color: var(--bg-white);
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 500px;
        }

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

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

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

        /* Showcase & Pricing Area */
        .showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .showcase-card {
            background: var(--bg-white);
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition-base);
        }

        .showcase-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .showcase-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .showcase-content {
            padding: 20px;
        }

        .showcase-tag {
            font-size: 11px;
            text-transform: uppercase;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            display: inline-block;
        }

        .showcase-content h4 {
            font-size: 16px;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

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

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

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
            padding-bottom: 20px;
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        .faq-question svg {
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question svg {
            transform: rotate(180deg);
        }

        /* Testimonials Section */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .testi-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 32px;
            box-shadow: var(--shadow-sm);
        }

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

        .testi-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: rgba(0, 82, 217, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
            font-size: 16px;
        }

        .testi-meta h4 {
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 700;
        }

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

        .testi-card p.quote {
            font-size: 14px;
            color: var(--text-muted);
            font-style: italic;
        }

        /* News / Articles Section */
        .articles-wrap {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .articles-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .article-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: var(--transition-base);
        }

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

        .article-item a {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            text-decoration: none;
        }

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

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

        /* Contact & Lead Form Section */
        .contact-wrap {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
        }

        .lead-form-box {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 40px;
            border-radius: 10px;
            box-shadow: var(--shadow-md);
        }

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

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 14px;
            transition: var(--transition-base);
            outline: none;
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 82, 217, 0.1);
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .contact-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .contact-icon {
            width: 44px;
            height: 44px;
            background-color: rgba(0, 82, 217, 0.08);
            color: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-det h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

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

        .qr-wrap {
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .qr-wrap img {
            width: 100px;
            height: 100px;
            border: 1px solid var(--border-color);
            padding: 4px;
            border-radius: 4px;
        }

        /* Footer & Partners Links */
        footer {
            background-color: #0c0f16;
            color: #b0b8c4;
            padding: 60px 0 30px;
            font-size: 13px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #1f2736;
        }

        .footer-logo {
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .footer-col h4 {
            color: var(--bg-white);
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

        .footer-col ul li a {
            color: #b0b8c4;
            text-decoration: none;
            transition: var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .friend-links a {
            color: #86909c;
            text-decoration: none;
            transition: var(--transition-base);
        }

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

        /* Floating Sidebar Widget */
        .floating-widget {
            position: fixed;
            right: 24px;
            bottom: 100px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .widget-btn {
            width: 48px;
            height: 48px;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            position: relative;
            transition: var(--transition-base);
            color: var(--text-dark);
        }

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

        .widget-btn .tooltip {
            position: absolute;
            right: 60px;
            background-color: #0c0f16;
            color: var(--bg-white);
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 12px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transform: translateX(10px);
            transition: var(--transition-base);
        }

        .widget-btn:hover .tooltip {
            opacity: 1;
            transform: translateX(0);
        }

        .widget-btn .qr-panel {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 12px;
            border-radius: 8px;
            box-shadow: var(--shadow-lg);
            opacity: 0;
            pointer-events: none;
            transform: scale(0.9);
            transform-origin: right bottom;
            transition: var(--transition-base);
            text-align: center;
            color: var(--text-dark);
        }

        .widget-btn:hover .qr-panel {
            opacity: 1;
            pointer-events: auto;
            transform: scale(1);
        }

        .widget-btn .qr-panel img {
            width: 120px;
            height: 120px;
            display: block;
            margin-bottom: 6px;
        }

        .widget-btn .qr-panel span {
            font-size: 11px;
            font-weight: 700;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .about-wrap, .comparison-board, .contact-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

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

        @media (max-width: 768px) {
            header {
                height: 60px;
            }

            .nav-menu {
                position: fixed;
                top: 60px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 24px;
                border-bottom: 1px solid var(--border-color);
                gap: 16px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition-base);
                box-shadow: var(--shadow-md);
            }

            .nav-menu.active {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-toggle {
                display: block;
            }

            .nav-actions {
                display: none;
            }

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

            .hero p {
                font-size: 15px;
            }

            section {
                padding: 60px 0;
            }

            .services-grid, .showcase-grid, .testimonials-grid, .workflow-steps, .stats-grid, .articles-wrap {
                grid-template-columns: 1fr;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }