:root {
            --bg-base: #070913;
            --bg-surface: rgba(18, 22, 45, 0.7);
            --bg-surface-solid: #12162d;
            --primary: #00f2fe;
            --secondary: #9b51e0;
            --accent: #ff007f;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --border-neon: rgba(0, 242, 254, 0.2);
            --border-neon-hover: rgba(0, 242, 254, 0.6);
            --shadow-neon: 0 0 15px rgba(0, 242, 254, 0.15);
            --shadow-neon-hover: 0 0 25px rgba(0, 242, 254, 0.4);
            --max-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

        /* Typography */
        h1, h2, h3, h4 {
            color: #fff;
            font-weight: 700;
            letter-spacing: 0.05em;
        }

        h2 {
            font-size: 2.2rem;
            text-align: center;
            margin-bottom: 3.5rem;
            position: relative;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        h2::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
        }

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

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

        a:hover {
            color: #fff;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            outline: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: #070913;
            box-shadow: var(--shadow-neon);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-neon-hover);
            color: #fff;
        }

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

        .btn-outline:hover {
            background: rgba(0, 242, 254, 0.1);
            color: #fff;
            box-shadow: var(--shadow-neon);
            transform: translateY(-2px);
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(7, 9, 19, 0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-neon);
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

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

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

        .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-menu {
            display: flex;
            gap: 25px;
            list-style: none;
        }

        .nav-link {
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: 5px 0;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
        }

        .menu-toggle span {
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            transition: var(--transition);
        }

        /* Section Global Settings */
        section {
            padding: 100px 0;
            position: relative;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* Hero Section (No Image) */
        .hero {
            padding-top: 180px;
            padding-bottom: 120px;
            background: radial-gradient(circle at 50% 30%, rgba(155, 81, 224, 0.15) 0%, rgba(7, 9, 19, 0) 70%);
            text-align: center;
        }

        .hero h1 {
            font-size: 3rem;
            line-height: 1.25;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #fff 30%, var(--primary) 70%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero p.lead {
            font-size: 1.25rem;
            max-width: 800px;
            margin: 0 auto 40px auto;
            color: var(--text-muted);
        }

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

        /* Grid Lists */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        /* Cards */
        .card {
            background: var(--bg-surface);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }

        .card:hover {
            transform: translateY(-5px);
            border-color: var(--border-neon-hover);
            box-shadow: var(--shadow-neon-hover);
        }

        .card-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--primary);
            text-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
        }

        .card h3 {
            margin-bottom: 15px;
            font-size: 1.4rem;
        }

        /* Highlights / Stats */
        .stats-bar {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 50px;
            padding: 30px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .stat-val {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            text-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
        }

        .stat-label {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 5px;
        }

        /* Services & Model Badges */
        .badge-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }

        .badge {
            background: rgba(0, 242, 254, 0.1);
            border: 1px solid rgba(0, 242, 254, 0.3);
            color: var(--primary);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
        }

        /* Solutions list */
        .solutions-list {
            list-style: none;
        }

        .solutions-list li {
            margin-bottom: 15px;
            position: relative;
            padding-left: 25px;
            color: var(--text-muted);
        }

        .solutions-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        /* Network Section */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
        }

        .network-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .network-map-placeholder {
            background: radial-gradient(circle, rgba(0, 242, 254, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
            border: 1px dashed var(--border-neon);
            border-radius: 12px;
            height: 350px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: var(--text-muted);
            position: relative;
        }

        .network-node {
            position: absolute;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 15px var(--primary);
            animation: pulse 2s infinite;
        }

        /* Steps */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 35px;
            position: relative;
        }

        .step-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 30px;
            text-align: center;
            position: relative;
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #000;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 10px var(--primary);
        }

        .step-card h3 {
            margin-top: 15px;
            margin-bottom: 10px;
        }

        /* Comparison Table */
        .table-responsive {
            overflow-x: auto;
            margin-top: 30px;
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            background: var(--bg-surface);
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        th {
            background-color: rgba(0, 242, 254, 0.05);
            color: var(--primary);
            font-weight: 600;
        }

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

        tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .rating-highlight {
            color: #ffb800;
            font-size: 1.2rem;
            font-weight: bold;
        }

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

        .case-item {
            overflow: hidden;
            border-radius: 12px;
            border: 1px solid var(--border-neon);
            background: var(--bg-surface);
        }

        .case-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }

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

        .case-item:hover .case-img-wrap img {
            transform: scale(1.05);
        }

        .case-content {
            padding: 20px;
        }

        .case-content h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }

        /* Form */
        .form-section {
            background: radial-gradient(circle at 10% 20%, rgba(0, 242, 254, 0.05) 0%, rgba(155, 81, 224, 0.05) 90%);
        }

        .form-wrapper {
            max-width: 650px;
            margin: 0 auto;
            background: var(--bg-surface-solid);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid var(--border-neon);
            box-shadow: var(--shadow-neon);
        }

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

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--text-main);
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: rgba(7, 9, 19, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: 8px;
            color: #fff;
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
        }

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

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

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding: 15px 0;
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 10px 0;
        }

        .faq-question h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            transition: var(--transition);
        }

        .faq-question:hover h3 {
            color: var(--primary);
        }

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

        .faq-answer p {
            padding: 10px 0;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
        }

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

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

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

        .testimonial-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-neon);
            border-radius: 12px;
            padding: 25px;
            position: relative;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }

        .user-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #000;
        }

        .user-details h4 {
            font-size: 1rem;
        }

        .user-details span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .comment-star {
            color: #ffb800;
            margin-bottom: 10px;
        }

        /* Articles & Wiki */
        .wiki-section {
            background: rgba(0, 0, 0, 0.2);
        }

        .wiki-tabs {
            display: flex;
            gap: 15px;
            margin-bottom: 30px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .tab-btn {
            background: transparent;
            border: 1px solid var(--border-neon);
            color: var(--text-muted);
            padding: 8px 18px;
            border-radius: 20px;
            cursor: pointer;
            transition: var(--transition);
        }

        .tab-btn.active, .tab-btn:hover {
            background: var(--primary);
            color: #070913;
            box-shadow: var(--shadow-neon);
            border-color: var(--primary);
        }

        .wiki-content-pane {
            display: none;
        }

        .wiki-content-pane.active {
            display: grid;
        }

        .article-list {
            list-style: none;
        }

        .article-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-list li a {
            color: var(--text-main);
        }

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

        .article-date {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Contact Details & QR Code */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
        }

        .contact-info-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-info-item {
            display: flex;
            align-items: center;
            gap: 15px;
            background: rgba(255, 255, 255, 0.02);
            padding: 15px 20px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .contact-qr-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            background: var(--bg-surface);
            padding: 30px;
            border-radius: 12px;
            border: 1px solid var(--border-neon);
            text-align: center;
        }

        .contact-qr-box img {
            width: 160px;
            height: 160px;
            margin-bottom: 15px;
            border-radius: 8px;
            border: 4px solid #fff;
        }

        /* Float Widget */
        .float-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--bg-surface-solid);
            border: 1px solid var(--border-neon);
            box-shadow: var(--shadow-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--primary);
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
            border-color: var(--primary);
            box-shadow: var(--shadow-neon-hover);
        }

        .float-qr-hover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--bg-surface-solid);
            border: 1px solid var(--border-neon);
            padding: 15px;
            border-radius: 8px;
            box-shadow: var(--shadow-neon-hover);
            display: none;
            flex-direction: column;
            align-items: center;
            width: 150px;
        }

        .float-qr-hover img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .float-btn:hover .float-qr-hover {
            display: flex;
        }

        /* Footer */
        footer {
            background-color: #04050a;
            padding: 60px 0 30px 0;
            border-top: 1px solid var(--border-neon);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 1.1rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background-color: var(--primary);
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 5px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }

        .friend-links a {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .friend-links a:hover {
            background: rgba(0, 242, 254, 0.1);
            border-color: var(--primary);
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 25px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Animations */
        @keyframes pulse {
            0% { transform: scale(1); opacity: 0.8; }
            50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 25px var(--primary); }
            100% { transform: scale(1); opacity: 0.8; }
        }

        /* Responsive */
        @media (max-width: 992px) {
            .grid-2, .contact-grid, .network-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background: var(--bg-base);
                flex-direction: column;
                align-items: center;
                padding-top: 40px;
                transition: var(--transition);
                border-top: 1px solid var(--border-neon);
            }
            .nav-menu.active {
                left: 0;
            }
            .menu-toggle {
                display: flex;
            }
            .menu-toggle.active span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }
            .menu-toggle.active span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }