:root {
            --bg-dark: #0a0616;
            --bg-card: #130b24;
            --bg-nav: rgba(10, 6, 22, 0.95);
            --primary: #ff007f;
            --secondary: #8a2be2;
            --accent: #00f0ff;
            --text-main: #ffffff;
            --text-muted: #b5a9cc;
            --text-dark: #0a0616;
            --border-neon: rgba(255, 0, 127, 0.3);
            --border-cyan: rgba(0, 240, 255, 0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-width: 1200px;
        }

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

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

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

        /* Typography */
        h1, h2, h3, h4 {
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        
        .gradient-text {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* Header & Navigation */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: var(--bg-nav);
            border-bottom: 1px solid var(--border-neon);
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

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

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

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

        nav {
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 15px;
            list-style: none;
        }

        .nav-links a, .ai-page-home-link {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            padding: 5px 8px;
            border-radius: 4px;
        }

        .nav-links a:hover, .ai-page-home-link:hover {
            color: var(--primary);
            text-shadow: 0 0 8px rgba(255,0,127,0.6);
        }

        .btn-nav-action {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: var(--text-main);
            padding: 8px 16px;
            border-radius: 20px;
            text-decoration: none;
            font-size: 14px;
            font-weight: bold;
            border: 1px solid rgba(255,255,255,0.2);
            transition: var(--transition);
        }

        .btn-nav-action:hover {
            box-shadow: 0 0 15px var(--primary);
            transform: translateY(-1px);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 24px;
            cursor: pointer;
        }

        /* Hero Section (No Image Allowed) */
        .hero-section {
            padding: 160px 0 100px 0;
            position: relative;
            background: radial-gradient(circle at 50% 30%, rgba(138, 43, 226, 0.2), transparent 70%);
            text-align: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, transparent, var(--bg-dark));
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 0, 127, 0.1);
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 14px;
            margin-bottom: 20px;
            font-weight: 600;
            box-shadow: 0 0 10px rgba(255,0,127,0.2);
        }

        .hero-title {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 24px;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: var(--text-main);
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            border: none;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(255, 0, 127, 0.4);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(255, 0, 127, 0.6), 0 0 15px var(--accent);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 700;
            text-decoration: none;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
            color: var(--accent);
        }

        /* Section Layouts */
        section {
            padding: 80px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            margin-bottom: 15px;
            color: #fff;
        }

        .section-header p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }

        /* Info Indicators Grid (Data indicators) */
        .indicator-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -30px;
            position: relative;
            z-index: 3;
        }

        .indicator-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            transition: var(--transition);
        }

        .indicator-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 5px 15px rgba(0, 240, 255, 0.2);
        }

        .indicator-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 5px;
        }

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

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

        .card-grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .model-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 20px;
        }

        .model-tag {
            background: rgba(138, 43, 226, 0.15);
            border: 1px solid rgba(138, 43, 226, 0.3);
            color: #e2dcf4;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 12px;
            transition: var(--transition);
        }

        .model-tag:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(0, 240, 255, 0.1);
        }

        .custom-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 16px;
            padding: 30px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .custom-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

        .custom-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(255, 0, 127, 0.15);
        }

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

        .card-icon {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .card-title {
            font-size: 20px;
            margin-bottom: 12px;
            color: #fff;
        }

        .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 15px;
        }

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

        .timeline-item {
            display: flex;
            margin-bottom: 40px;
            position: relative;
        }

        .timeline-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 20px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 10px rgba(255,0,127,0.5);
        }

        .timeline-content {
            margin-left: 25px;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 24px;
            border-radius: 12px;
            width: 100%;
        }

        /* Grid for Media Cards (Cases section) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-cyan);
            border-radius: 16px;
            overflow: hidden;
        }

        .case-img-container {
            width: 100%;
            height: 240px;
            overflow: hidden;
            background: #110921;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .case-img-container img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-container img {
            transform: scale(1.05);
        }

        .case-info {
            padding: 24px;
        }

        /* Comparison Table */
        .comparison-table-wrapper {
            overflow-x: auto;
            margin-top: 30px;
            background: var(--bg-card);
            border-radius: 16px;
            border: 1px solid var(--border-neon);
        }

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

        th, td {
            padding: 16px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 14px;
        }

        th {
            background-color: rgba(138, 43, 226, 0.1);
            color: #fff;
            font-weight: 600;
        }

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

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

        .highlight-col {
            background: rgba(255, 0, 127, 0.05);
            border-left: 1px solid rgba(255, 0, 127, 0.2);
            border-right: 1px solid rgba(255, 0, 127, 0.2);
        }

        .rating-box {
            background: linear-gradient(135deg, rgba(255, 0, 127, 0.2), rgba(0, 240, 255, 0.2));
            border-radius: 10px;
            padding: 15px;
            display: inline-block;
            margin-top: 20px;
            border: 1px solid var(--border-neon);
        }

        /* Form styling */
        .matching-form {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 40px;
            max-width: 700px;
            margin: 0 auto;
        }

        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-full {
            grid-column: span 2;
        }

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

        .form-group input, .form-group select, .form-group textarea {
            width: 100%;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: #fff;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 8px rgba(255, 0, 127, 0.3);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-submit {
            width: 100%;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: #fff;
            border: none;
            padding: 14px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-submit:hover {
            box-shadow: 0 0 15px var(--primary);
            transform: translateY(-1px);
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 8px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: #fff;
            user-select: none;
        }

        .faq-icon {
            font-size: 18px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background: rgba(0, 0, 0, 0.15);
        }

        .faq-answer-inner {
            padding: 20px 24px;
            color: var(--text-muted);
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.03);
        }

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

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        /* Feedback Grid (User Reviews) */
        .feedback-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .feedback-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 24px;
            position: relative;
        }

        .feedback-text {
            font-size: 14px;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 20px;
        }

        .feedback-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #fff;
            font-size: 14px;
        }

        .user-info h4 {
            font-size: 14px;
            color: #fff;
        }

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

        /* Info Articles List */
        .articles-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

        .article-card:hover {
            border-color: var(--accent);
            transform: translateX(5px);
        }

        .article-title {
            font-size: 15px;
            font-weight: 500;
            color: #fff;
            text-decoration: none;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 80%;
        }

        .article-link {
            color: var(--accent);
            text-decoration: none;
            font-size: 13px;
            font-weight: 600;
        }

        /* Floating Widgets */
        .floating-container {
            position: fixed;
            bottom: 30px;
            right: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }

        .floating-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            text-decoration: none;
            box-shadow: 0 4px 15px rgba(255, 0, 127, 0.4);
            cursor: pointer;
            transition: var(--transition);
            border: none;
            position: relative;
        }

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

        .qr-popup {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.5);
            display: none;
            width: 180px;
            text-align: center;
        }

        .qr-popup img {
            width: 150px;
            height: 150px;
            display: block;
            margin: 0 auto 8px auto;
        }

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

        .floating-btn:hover .qr-popup {
            display: block;
        }

        /* Footer */
        footer {
            background: #06030c;
            border-top: 1px solid var(--border-neon);
            padding: 60px 0 30px 0;
        }

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

        .footer-col h3 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--accent);
        }

        .footer-col p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a, .footer-col a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition);
        }

        .footer-links a:hover, .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

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

        .friend-links {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 12px;
        }

        .friend-links span {
            color: var(--text-muted);
        }

        .friend-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

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

        /* Custom extra layouts for 21 requested sections */
        .info-strip {
            background: linear-gradient(90deg, rgba(255,0,127,0.1), rgba(0,240,255,0.1));
            border-top: 1px solid var(--border-neon);
            border-bottom: 1px solid var(--border-cyan);
            padding: 30px 0;
        }
        
        .info-strip-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .info-strip-item h4 {
            font-size: 14px;
            color: var(--accent);
            text-transform: uppercase;
        }

        .info-strip-item p {
            font-size: 18px;
            font-weight: bold;
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid-3, .feedback-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-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: var(--bg-nav);
                padding: 20px;
                border-bottom: 1px solid var(--border-neon);
            }

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

            .menu-toggle {
                display: block;
            }

            .hero-title {
                font-size: 2rem;
            }

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

            .card-grid-3, .card-grid-4, .feedback-grid, .cases-grid, .articles-list {
                grid-template-columns: 1fr;
            }

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

            .form-full {
                grid-column: span 1;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }