/* Modern Vibrant Purple Theme Reset & Core Variables */
        :root {
            --primary: #6c5ce7;
            --primary-dark: #5849be;
            --primary-light: #a29bfe;
            --accent: #e056fd;
            --accent-glow: rgba(224, 86, 253, 0.25);
            --bg-page: #f9f8ff;
            --bg-card: #ffffff;
            --bg-soft: #f0edfe;
            --text-main: #1e1b2e;
            --text-muted: #5b5675;
            --border: rgba(108, 92, 231, 0.15);
            --shadow-sm: 0 4px 12px rgba(108, 92, 231, 0.06);
            --shadow-md: 0 8px 24px rgba(108, 92, 231, 0.1);
            --shadow-lg: 0 16px 36px rgba(108, 92, 231, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-page);
            color: var(--text-main);
            line-height: 1.6;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }

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

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

        .section-padding {
            padding: 80px 0;
        }

        .text-center {
            text-align: center;
        }

        /* Section Headings */
        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 50px auto;
        }

        .section-subtitle {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(108, 92, 231, 0.1);
            color: var(--primary);
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: 2.2rem;
            color: var(--text-main);
            margin-bottom: 16px;
            font-weight: 700;
        }

        .section-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

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

        .ai-page-logo {
            max-height: 44px;
            width: auto;
        }

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

        .nav-link {
            font-weight: 500;
            color: var(--text-main);
            font-size: 0.95rem;
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: #ffffff !important;
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #ffffff;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text-main);
            cursor: pointer;
        }

        /* Hero Section (No Images Allowed Here) */
        .hero-section {
            padding: 90px 0 70px 0;
            background: radial-gradient(circle at 10% 20%, rgba(162, 155, 254, 0.15) 0%, rgba(249, 248, 255, 1) 90%);
            position: relative;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: 50px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 600;
        }

        .hero-title {
            font-size: 2.8rem;
            line-height: 1.25;
            margin-bottom: 24px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.5px;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
        }

        /* Generic Card Styling */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

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

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 92, 231, 0.4);
        }

        .card-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-sm);
            background: var(--bg-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            font-weight: bold;
        }

        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .card-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Model Badge Grid */
        .models-badge-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 30px;
        }

        .model-badge {
            background: #ffffff;
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .model-badge:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* Comparison Section */
        .rating-banner {
            background: linear-gradient(135deg, #2d2447 0%, #1e1732 100%);
            color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
            box-shadow: var(--shadow-md);
        }

        .rating-score-box {
            text-align: center;
            padding-right: 40px;
            border-right: 1px solid rgba(255,255,255,0.15);
        }

        .score-val {
            font-size: 3.5rem;
            font-weight: 900;
            color: #ffbe76;
            line-height: 1;
        }

        .score-stars {
            color: #ffbe76;
            font-size: 1.2rem;
            margin-top: 8px;
        }

        .compare-table-wrapper {
            overflow-x: auto;
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 650px;
        }

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

        .compare-table th {
            background: var(--bg-soft);
            font-weight: 700;
            color: var(--text-main);
        }

        .compare-table tr:hover {
            background: rgba(108, 92, 231, 0.02);
        }

        .highlight-col {
            background: rgba(108, 92, 231, 0.05);
            font-weight: 700;
            color: var(--primary);
        }

        /* Content Media & Image Showcase Grid */
        .image-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .image-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

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

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

        .image-card-caption {
            padding: 16px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            text-align: center;
        }

        /* FAQ Accordion */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: "+";
            font-size: 1.4rem;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45%deg);
            content: "×";
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: var(--bg-page);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 16px 24px;
            border-top: 1px solid var(--border);
        }

        /* User Reviews */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px;
            box-shadow: var(--shadow-sm);
        }

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

        .avatar-placeholder {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .user-info h4 {
            font-size: 1rem;
            font-weight: 700;
        }

        .user-info span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* Form Styling */
        .form-section {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 40px;
            box-shadow: var(--shadow-md);
            max-width: 800px;
            margin: 0 auto;
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            background: var(--bg-page);
            color: var(--text-main);
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            background: #ffffff;
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
        }

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

        /* News & Articles Link List */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }

        .article-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* Contact Details Grid */
        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .contact-info-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 30px;
        }

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

        .qr-box img {
            max-width: 160px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }

        /* Footer */
        .site-footer {
            background: #151221;
            color: #b5b1cd;
            padding: 70px 0 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 2fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-brand h3 {
            color: #ffffff;
            font-size: 1.4rem;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 18px;
        }

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

        .footer-links a {
            color: #b5b1cd;
            font-size: 0.88rem;
        }

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

        .friendship-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }

        .friendship-links a {
            color: #908ba8;
            font-size: 0.85rem;
            background: rgba(255, 255, 255, 0.05);
            padding: 4px 10px;
            border-radius: 4px;
        }

        .friendship-links a:hover {
            color: #ffffff;
            background: rgba(108, 92, 231, 0.3);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: #787396;
        }

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

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            font-weight: bold;
            transition: var(--transition);
        }

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

        /* Responsive Breakpoints */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .rating-banner {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
            .rating-score-box {
                padding-right: 0;
                border-right: none;
                border-bottom: 1px solid rgba(255,255,255,0.15);
                padding-bottom: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .form-section {
                padding: 24px;
            }
        }