/* CSS Reset & Variables */
        :root {
            --bg-dark: #07030e;
            --bg-card: #120924;
            --bg-header: rgba(11, 6, 22, 0.9);
            --primary: #ff007a;
            --secondary: #7b2cbf;
            --cyan: #00f0ff;
            --text-light: #ffffff;
            --text-gray: #a0a0c0;
            --text-dark: #120924;
            --border-neon: rgba(255, 0, 122, 0.3);
            --border-cyan: rgba(0, 240, 255, 0.3);
            --shadow-neon: 0 0 20px rgba(255, 0, 122, 0.2);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-light);
            font-family: var(--font-family);
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(123, 44, 191, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(255, 0, 122, 0.12) 0%, transparent 40%),
                linear-gradient(rgba(18, 9, 36, 0.4) 1px, transparent 1px),
                linear-gradient(90deg, rgba(18, 9, 36, 0.4) 1px, transparent 1px);
            background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

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

        /* Common Elements */
        .section {
            padding: 100px 0;
            border-bottom: 1px solid rgba(123, 44, 191, 0.15);
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-size: 2.5rem;
            background: linear-gradient(90deg, var(--cyan), var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 15px;
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
            font-weight: 800;
        }

        .section-title p {
            color: var(--text-gray);
            font-size: 1.1rem;
        }

        .btn-neon {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            color: var(--text-light);
            padding: 14px 30px;
            border-radius: 30px;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(255, 0, 122, 0.4);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn-neon::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: rgba(255, 255, 255, 0.15);
            transform: rotate(45deg) translate(-70%, -70%);
            transition: all 0.6s ease;
        }

        .btn-neon:hover::after {
            transform: rotate(45deg) translate(20%, 20%);
        }

        .btn-neon:hover {
            box-shadow: 0 0 25px var(--cyan);
            transform: translateY(-2px);
        }

        .btn-outline {
            border: 2px solid var(--cyan);
            color: var(--text-light);
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: bold;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            cursor: pointer;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
            transition: all 0.3s ease;
        }

        .btn-outline:hover {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: 0 0 20px var(--cyan);
            transform: translateY(-2px);
        }

        /* Header */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background-color: var(--bg-header);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(255, 0, 122, 0.2);
            box-shadow: var(--shadow-neon);
        }

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

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

        .logo-wrap img {
            height: 48px;
            width: auto;
        }

        nav {
            display: flex;
            gap: 20px;
        }

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

        nav a:hover, nav a.active {
            color: var(--cyan);
            text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--cyan), var(--primary));
            transition: width 0.3s ease;
        }

        nav a:hover::after, nav a.active::after {
            width: 100%;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-light);
            transition: all 0.3s ease;
        }

        /* Hero Section (No Image Allowed) */
        .hero {
            padding: 180px 0 100px;
            position: relative;
            text-align: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, var(--cyan) 0%, transparent 70%);
            opacity: 0.15;
            transform: translate(-50%, -50%);
            filter: blur(50px);
            pointer-events: none;
        }

        .hero-tag {
            background: rgba(255, 0, 122, 0.1);
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            display: inline-block;
            margin-bottom: 20px;
            box-shadow: 0 0 10px rgba(255, 0, 122, 0.2);
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 25px;
            background: linear-gradient(135deg, var(--text-light) 30%, var(--cyan) 60%, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            max-width: 800px;
            margin: 0 auto 40px;
            font-size: 1.2rem;
            color: var(--text-gray);
        }

        .hero-btns {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 60px;
        }

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

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 30px 20px;
            border-radius: 15px;
            text-align: center;
            box-shadow: var(--shadow-neon);
            transition: transform 0.3s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--cyan);
        }

        .stat-card h3 {
            font-size: 2.5rem;
            color: var(--cyan);
            margin-bottom: 10px;
            font-weight: 800;
        }

        .stat-card p {
            color: var(--text-gray);
            font-size: 0.95rem;
        }

        /* About Us */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            color: var(--cyan);
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--text-gray);
            margin-bottom: 20px;
        }

        .about-features {
            list-style: none;
        }

        .about-features li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 15px;
            color: var(--text-light);
        }

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

        .about-info-box {
            background: linear-gradient(135deg, var(--bg-card), rgba(123, 44, 191, 0.3));
            border: 1px solid var(--border-cyan);
            border-radius: 20px;
            padding: 40px;
            position: relative;
            overflow: hidden;
        }

        .about-info-box::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 120px;
            height: 120px;
            background: linear-gradient(135deg, transparent 50%, var(--cyan) 100%);
            opacity: 0.2;
        }

        .about-info-box h4 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 15px;
        }

        /* Services Grid (Model Aggregation) */
        .platforms-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 40px;
        }

        .platform-tag {
            background: rgba(18, 9, 36, 0.6);
            border: 1px solid var(--border-cyan);
            color: var(--cyan);
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .platform-tag:hover {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: 0 0 15px var(--cyan);
            transform: scale(1.05);
        }

        /* Production (Scenario & Features) */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 20px;
            padding: 40px 30px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .card-custom::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--cyan), var(--primary));
        }

        .card-custom:hover {
            transform: translateY(-8px);
            border-color: var(--cyan);
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.15);
        }

        .card-icon {
            font-size: 2.5rem;
            color: var(--cyan);
            margin-bottom: 25px;
        }

        .card-custom h3 {
            font-size: 1.4rem;
            color: var(--text-light);
            margin-bottom: 15px;
        }

        .card-custom p {
            color: var(--text-gray);
            font-size: 0.95rem;
        }

        /* Step Process (Timeline Style) */
        .timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .timeline::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--cyan));
            transform: translateX(-50%);
        }

        .timeline-item {
            margin-bottom: 50px;
            position: relative;
            width: 50%;
            padding: 0 40px;
        }

        .timeline-item:nth-child(odd) {
            left: 0;
            text-align: right;
        }

        .timeline-item:nth-child(even) {
            left: 50%;
            text-align: left;
        }

        .timeline-dot {
            width: 20px;
            height: 20px;
            background: var(--cyan);
            border: 4px solid var(--bg-dark);
            border-radius: 50%;
            position: absolute;
            top: 0;
            left: 50%;
            transform: translate(-50%, 0);
            z-index: 1;
            box-shadow: 0 0 10px var(--cyan);
        }

        .timeline-item:nth-child(odd) .timeline-dot {
            transform: translate(-50%, 0);
        }

        .timeline-content {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 15px;
            padding: 25px;
            position: relative;
        }

        .timeline-content h3 {
            font-size: 1.25rem;
            color: var(--cyan);
            margin-bottom: 10px;
        }

        .timeline-content p {
            color: var(--text-gray);
            font-size: 0.9rem;
        }

        /* Table (Comparison) */
        .table-responsive {
            overflow-x: auto;
            margin-top: 40px;
            border-radius: 15px;
            border: 1px solid var(--border-neon);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: var(--bg-card);
        }

        th, td {
            padding: 18px 20px;
            border-bottom: 1px solid rgba(123, 44, 191, 0.15);
        }

        th {
            background-color: rgba(18, 9, 36, 0.8);
            color: var(--cyan);
            font-weight: 600;
        }

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

        tr:hover td {
            background-color: rgba(255, 0, 122, 0.05);
        }

        .rating-badge {
            display: inline-flex;
            align-items: center;
            background: linear-gradient(90deg, #ff007a, #ff7b00);
            color: #fff;
            padding: 4px 10px;
            border-radius: 5px;
            font-size: 0.85rem;
            font-weight: bold;
        }

        /* Cases Center (Media Grid) */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 15px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

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

        .case-img-wrap {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #000;
            position: relative;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .case-content {
            padding: 20px;
        }

        .case-content h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--cyan);
        }

        .case-content p {
            color: var(--text-gray);
            font-size: 0.9rem;
        }

        /* User Reviews */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: 15px;
            padding: 30px;
            position: relative;
        }

        .review-quote {
            color: var(--text-gray);
            font-size: 0.95rem;
            font-style: italic;
            margin-bottom: 20px;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .review-info h4 {
            font-size: 1rem;
            color: var(--cyan);
        }

        .review-info span {
            color: var(--text-gray);
            font-size: 0.8rem;
        }

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

        .faq-item {
            border: 1px solid var(--border-neon);
            background: var(--bg-card);
            border-radius: 10px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-header {
            width: 100%;
            background: none;
            border: none;
            padding: 20px;
            text-align: left;
            color: var(--text-light);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-header::after {
            content: '+';
            font-size: 1.5rem;
            color: var(--cyan);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-header::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 20px;
            color: var(--text-gray);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-content {
            padding: 0 20px 20px;
        }

        /* Articles & Links */
        .articles-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 30px;
        }

        .articles-list li {
            background: rgba(18, 9, 36, 0.4);
            border: 1px solid var(--border-neon);
            border-radius: 10px;
            padding: 15px 20px;
        }

        .articles-list a {
            display: block;
            color: var(--cyan);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .articles-list a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

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

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .contact-icon {
            font-size: 1.5rem;
            color: var(--cyan);
            background: rgba(0, 240, 255, 0.1);
            padding: 10px;
            border-radius: 10px;
        }

        .contact-detail h4 {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 5px;
        }

        .contact-detail p {
            color: var(--text-gray);
            font-size: 0.95rem;
        }

        .qrcode-wrap {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .qrcode-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            width: 140px;
        }

        .qrcode-card img {
            width: 110px;
            height: 110px;
            margin: 0 auto 10px;
            background: #fff;
            padding: 5px;
            border-radius: 5px;
        }

        .qrcode-card span {
            font-size: 0.8rem;
            color: var(--text-gray);
        }

        .form-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-cyan);
            padding: 40px;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            color: var(--text-light);
            font-size: 0.9rem;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            background: rgba(18, 9, 36, 0.8);
            border: 1px solid var(--border-neon);
            color: var(--text-light);
            padding: 12px 15px;
            border-radius: 8px;
            font-family: inherit;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--cyan);
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }

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

        /* Footer */
        footer {
            background: #04020a;
            border-top: 1px solid rgba(255, 0, 122, 0.2);
            padding: 60px 0 30px;
        }

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

        .footer-about img {
            height: 48px;
            margin-bottom: 20px;
        }

        .footer-about p {
            color: var(--text-gray);
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .footer-links h4 {
            color: var(--cyan);
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .footer-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }

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

        .footer-links a:hover {
            color: var(--cyan);
        }

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

        .friend-links a {
            background: rgba(123, 44, 191, 0.1);
            border: 1px solid rgba(123, 44, 191, 0.3);
            color: var(--text-gray);
            padding: 4px 10px;
            border-radius: 5px;
            font-size: 0.8rem;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(123, 44, 191, 0.15);
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.85rem;
            color: var(--text-gray);
        }

        /* Floating Sidebar */
        .floating-service {
            position: fixed;
            right: 20px;
            bottom: 40px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            z-index: 999;
        }

        .float-btn {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            cursor: pointer;
            box-shadow: var(--shadow-neon);
            transition: all 0.3s ease;
            position: relative;
        }

        .float-btn:hover {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: 0 0 15px var(--cyan);
        }

        .float-btn .tooltip {
            position: absolute;
            right: 65px;
            background: var(--bg-card);
            border: 1px solid var(--border-cyan);
            padding: 8px 12px;
            border-radius: 5px;
            color: var(--text-light);
            font-size: 0.85rem;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: all 0.3s ease;
            transform: translateX(10px);
        }

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

        /* Responsive Breakpoints */
        @media (max-width: 1024px) {
            .grid-3, .cases-grid, .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-container {
                height: 70px;
            }
            nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-header);
                border-bottom: 1px solid rgba(255, 0, 122, 0.2);
                padding: 20px;
                gap: 15px;
            }
            nav.open {
                display: flex;
            }
            .hamburger {
                display: flex;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
            }
            .grid-3, .cases-grid, .reviews-grid, .stats-grid {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 50px;
                padding-right: 0;
            }
            .timeline-item:nth-child(odd), .timeline-item:nth-child(even) {
                left: 0;
                text-align: left;
            }
            .timeline-dot {
                left: 20px;
            }
            .articles-list {
                grid-template-columns: 1fr;
            }
        }