/* Modern Vibrant Contrast Theme (Neo-Brutalist Light Style) */
        :root {
            --bg-color: #F9FAFB;
            --text-color: #111827;
            --primary: #2563EB;
            --primary-dark: #1D4ED8;
            --accent-yellow: #FBBF24;
            --accent-pink: #F43F5E;
            --accent-green: #10B981;
            --card-bg: #FFFFFF;
            --border-color: #111827;
            --shadow-color: #111827;
            --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        /* Global Structural Elements */
        section {
            padding: 80px 0;
            border-bottom: 3px solid var(--border-color);
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 50px;
            text-transform: uppercase;
            position: relative;
            display: inline-block;
            left: 50%;
            transform: translateX(-50%);
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 6px;
            background-color: var(--accent-yellow);
            border: 2px solid var(--border-color);
            z-index: -1;
        }

        /* Neo-Brutalist Card Base */
        .nb-card {
            background-color: var(--card-bg);
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--shadow-color);
            border-radius: 12px;
            padding: 24px;
            transition: all 0.2s ease;
        }

        .nb-card:hover {
            transform: translate(-3px, -3px);
            box-shadow: 9px 9px 0px var(--shadow-color);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 700;
            text-decoration: none;
            color: var(--text-color);
            border: 3px solid var(--border-color);
            box-shadow: 4px 4px 0px var(--shadow-color);
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.15s ease;
            background-color: var(--accent-yellow);
        }

        .btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 6px 6px 0px var(--shadow-color);
        }

        .btn:active {
            transform: translate(2px, 2px);
            box-shadow: 2px 2px 0px var(--shadow-color);
        }

        .btn-primary {
            background-color: var(--primary);
            color: #FFFFFF;
        }

        .btn-pink {
            background-color: var(--accent-pink);
            color: #FFFFFF;
        }

        .btn-green {
            background-color: var(--accent-green);
            color: #FFFFFF;
        }

        /* Header Navigation */
        header {
            background-color: var(--card-bg);
            border-bottom: 3px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }

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

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }

        .ai-page-logo {
            height: 45px;
            width: auto;
            display: block;
        }

        .brand-text {
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--text-color);
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 700;
            font-size: 0.95rem;
            transition: color 0.2s;
            padding: 6px 12px;
            border-radius: 6px;
        }

        .nav-menu a:hover {
            background-color: var(--accent-yellow);
            color: var(--text-color);
        }

        .mobile-nav-toggle {
            display: none;
            background: none;
            border: 2px solid var(--border-color);
            border-radius: 4px;
            padding: 8px;
            cursor: pointer;
        }

        /* Hero Section (Strictly NO Images) */
        .hero {
            background: radial-gradient(circle at 10% 20%, rgba(248, 250, 252, 1) 0%, rgba(239, 246, 255, 1) 90%);
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 25px;
            color: var(--text-color);
        }

        .hero h1 span {
            background: linear-gradient(120deg, var(--primary) 0%, var(--accent-pink) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p {
            font-size: 1.25rem;
            color: #4B5563;
            margin-bottom: 40px;
            font-weight: 500;
        }

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

        /* Data Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background-color: var(--card-bg);
            border: 2px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            text-align: center;
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-pink);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.9rem;
            font-weight: 700;
            color: #6B7280;
        }

        /* AIGC Services Section */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            position: relative;
            background: #FFFFFF;
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .service-card p {
            color: #4B5563;
            font-size: 0.95rem;
        }

        .service-models {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 15px;
        }

        .model-tag {
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 8px;
            background: #F3F4F6;
            border: 1px solid var(--border-color);
            border-radius: 4px;
        }

        /* Supported Models Marquee/Grid */
        .brands-showcase {
            background: #111827;
            color: #FFFFFF;
            padding: 40px 0;
            border-bottom: 3px solid var(--border-color);
        }

        .brands-title {
            text-align: center;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--accent-yellow);
            margin-bottom: 25px;
            letter-spacing: 2px;
        }

        .brands-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 1000px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .brand-chip {
            background: #1F2937;
            border: 1px solid #374151;
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #E5E7EB;
        }

        /* One-stop creation workflow */
        .workflow-timeline {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 25px;
        }

        .step-card {
            position: relative;
            padding-top: 50px;
        }

        .step-num {
            position: absolute;
            top: -15px;
            left: 20px;
            background-color: var(--accent-pink);
            color: white;
            width: 45px;
            height: 45px;
            font-size: 1.5rem;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--border-color);
            border-radius: 50%;
            box-shadow: 3px 3px 0px var(--shadow-color);
        }

        /* Comparison Board */
        .comparison-board {
            display: grid;
            grid-template-columns: 1fr;
            gap: 30px;
        }

        @media (min-width: 768px) {
            .comparison-board {
                grid-template-columns: 1fr 2fr;
            }
        }

        .score-card {
            background-color: var(--accent-pink);
            color: white;
            text-align: center;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--shadow-color);
            border-radius: 12px;
            padding: 40px 24px;
        }

        .score-value {
            font-size: 5rem;
            font-weight: 900;
            line-height: 1;
            margin: 15px 0;
            color: var(--accent-yellow);
            text-shadow: 2px 2px 0px var(--border-color);
        }

        .star-rating {
            font-size: 2rem;
            color: var(--accent-yellow);
            margin-bottom: 10px;
        }

        .table-wrapper {
            overflow-x: auto;
            border: 3px solid var(--border-color);
            box-shadow: 6px 6px 0px var(--shadow-color);
            border-radius: 12px;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background: #FFFFFF;
            text-align: left;
        }

        th, td {
            padding: 16px;
            border-bottom: 2px solid var(--border-color);
            font-weight: 700;
            font-size: 0.95rem;
        }

        th {
            background-color: var(--primary);
            color: white;
            text-transform: uppercase;
        }

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

        /* Token Pricing list */
        .token-comparison {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        /* Training section styling */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .cert-card {
            border-left: 8px solid var(--accent-pink);
        }

        /* Showcase images */
        .case-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .case-card {
            overflow: hidden;
            display: flex;
            flex-direction: column;
            padding: 0;
        }

        .case-img-container {
            border-bottom: 3px solid var(--border-color);
            position: relative;
            background-color: #E5E7EB;
            overflow: hidden;
        }

        .ai-page-image {
            width: 100%;
            height: 240px;
            object-fit: cover;
            display: block;
        }

        .case-info {
            padding: 24px;
        }

        /* Feedbacks */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }

        .review-card {
            background: #FFF;
        }

        .reviewer-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 2px dashed #E5E7EB;
        }

        .reviewer-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-yellow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            border: 2px solid var(--border-color);
        }

        /* FAQ Accordion */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background: #FFFFFF;
            border: 3px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px;
            text-align: left;
            font-size: 1.1rem;
            font-weight: 800;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-color);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #F9FAFB;
        }

        .faq-answer-content {
            padding: 20px;
            border-top: 2px solid var(--border-color);
            color: #4B5563;
            font-size: 0.95rem;
        }

        /* Form and contact */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }

        @media (min-width: 768px) {
            .contact-layout {
                grid-template-columns: 1fr 1fr;
            }
        }

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

        .form-group label {
            display: block;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px;
            border: 3px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            background: #FFFFFF;
        }

        .form-control:focus {
            outline: none;
            background: #F3F4F6;
        }

        /* Articles list */
        .article-section {
            background: #FFFFFF;
        }
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

        /* Footer */
        footer {
            background-color: #111827;
            color: #FFFFFF;
            padding: 6px 0 0 0;
            border-top: 5px solid var(--border-color);
        }

        .footer-main {
            padding: 60px 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
        }

        .footer-logo-area img {
            max-width: 150px;
            margin-bottom: 15px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--accent-yellow);
            margin-bottom: 20px;
            text-transform: uppercase;
        }

        .footer-col ul {
            list-style: none;
        }

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

        .footer-col ul li a {
            color: #9CA3AF;
            text-decoration: none;
            transition: color 0.2s;
            font-size: 0.9rem;
        }

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

        .footer-bottom {
            background-color: #0B0F19;
            padding: 25px 0;
            border-top: 1px solid #1F2937;
        }

        .footer-bottom-inner {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: space-between;
            gap: 15px;
        }

        @media(min-width: 768px) {
            .footer-bottom-inner {
                flex-direction: row;
            }
        }

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

        .friend-links a {
            color: #9CA3AF;
            text-decoration: none;
            font-size: 0.85rem;
        }

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

        /* Floating Widgets */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .widget-btn {
            width: 50px;
            height: 50px;
            background: var(--accent-yellow);
            border: 3px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 4px 4px 0px var(--shadow-color);
            position: relative;
        }

        .widget-btn img {
            width: 24px;
            height: 24px;
        }

        .widget-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            width: 220px;
            background: #FFFFFF;
            border: 3px solid var(--border-color);
            border-radius: 8px;
            padding: 15px;
            box-shadow: 6px 6px 0px var(--shadow-color);
            display: none;
            text-align: center;
        }

        .widget-popover img {
            width: 150px;
            height: 150px;
            margin-bottom: 10px;
        }

        .widget-btn:hover .widget-popover {
            display: block;
        }

        /* Responsive changes */
        @media(max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 78px;
                left: 0;
                width: 100%;
                background: #FFFFFF;
                border-bottom: 3px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }

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

            .mobile-nav-toggle {
                display: block;
            }

            .hero h1 {
                font-size: 2.2rem;
            }
        }