:root {
            --primary-dark: #0a0e17;
            --primary-blue: #0066ff;
            --accent-neon: #00ffff;
            --accent-purple: #9d4edd;
            --text-light: #f8f9fa;
            --text-gray: #adb5bd;
            --bg-card: #1a1f2e;
            --border-color: #2a3245;
            --success: #2ecc71;
            --warning: #f39c12;
            --danger: #e74c3c;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3rem;
            --spacing-xl: 5rem;
            --border-radius: 8px;
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --shadow: 0 4px 20px rgba(0, 102, 255, 0.15);
            --shadow-heavy: 0 10px 40px rgba(0, 102, 255, 0.25);
            --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--accent-purple));
            --gradient-dark: linear-gradient(to right, var(--primary-dark), #141a2a);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--primary-dark);
            background-image: radial-gradient(circle at 20% 30%, rgba(9, 29, 85, 0.3) 0%, transparent 20%),
                              radial-gradient(circle at 80% 70%, rgba(157, 78, 221, 0.2) 0%, transparent 20%);
            overflow-x: hidden;
        }
        a {
            color: var(--accent-neon);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-blue);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--border-radius);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .btn {
            display: inline-block;
            padding: 0.8rem 1.8rem;
            background: var(--gradient-primary);
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            box-shadow: var(--shadow);
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-heavy);
            text-decoration: none;
            color: white;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary-blue);
            color: var(--primary-blue);
        }
        .btn-outline:hover {
            background: var(--primary-blue);
            color: white;
        }
        section {
            padding: var(--spacing-xl) 0;
        }
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: var(--spacing-md);
            color: var(--text-light);
        }
        h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            background: linear-gradient(to right, var(--accent-neon), var(--primary-blue));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: var(--spacing-sm);
        }
        h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            border-left: 5px solid var(--accent-neon);
            padding-left: var(--spacing-sm);
            margin-top: var(--spacing-lg);
        }
        h3 {
            font-size: clamp(1.4rem, 3vw, 1.8rem);
            color: var(--accent-neon);
            margin-top: var(--spacing-md);
        }
        p {
            margin-bottom: var(--spacing-md);
            font-size: 1.1rem;
            color: var(--text-gray);
        }
        .highlight {
            color: var(--accent-neon);
            font-weight: 700;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        header {
            background: rgba(10, 14, 23, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            padding: var(--spacing-sm) 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: 900;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
        }
        .logo span {
            color: var(--accent-neon);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .desktop-nav a {
            color: var(--text-light);
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-neon);
            transition: width 0.3s ease;
        }
        .desktop-nav a:hover {
            color: var(--accent-neon);
            text-decoration: none;
        }
        .desktop-nav a:hover:after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--bg-card);
            padding: var(--spacing-md);
            box-shadow: 0 10px 20px rgba(0,0,0,0.5);
            z-index: 999;
            transform: translateY(-100%);
            opacity: 0;
            transition: transform 0.4s ease, opacity 0.4s ease;
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: var(--spacing-sm);
        }
        .mobile-nav a {
            display: block;
            padding: 0.8rem;
            border-radius: var(--border-radius);
            background: rgba(255,255,255,0.05);
            color: var(--text-light);
            font-weight: 600;
        }
        .mobile-nav a:hover {
            background: var(--primary-blue);
            color: white;
            text-decoration: none;
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            background: rgba(26, 31, 46, 0.7);
            margin-top: 1px;
            font-size: 0.9rem;
        }
        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child):after {
            content: '/';
            margin-left: 0.5rem;
            color: var(--text-gray);
        }
        .breadcrumb a {
            color: var(--text-gray);
        }
        .breadcrumb a:hover {
            color: var(--accent-neon);
        }
        .hero {
            padding-top: var(--spacing-xl);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .hero:before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0,102,255,0.1) 0%, transparent 70%);
            z-index: -1;
        }
        .hero h1 {
            margin-bottom: var(--spacing-sm);
        }
        .hero-subtitle {
            font-size: 1.3rem;
            color: var(--text-gray);
            max-width: 800px;
            margin: 0 auto var(--spacing-lg);
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-xl);
        }
        .stat-card {
            background: var(--bg-card);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--primary-blue);
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--primary-blue);
            margin-bottom: var(--spacing-sm);
        }
        .stat-card h3 {
            font-size: 1.8rem;
            margin-bottom: 0.5rem;
            color: var(--accent-neon);
        }
        .search-section {
            background: var(--bg-card);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            margin: var(--spacing-lg) 0;
            border: 1px solid var(--border-color);
        }
        .search-form {
            display: flex;
            max-width: 700px;
            margin: 0 auto;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: 2px solid var(--border-color);
            border-radius: 50px 0 0 50px;
            background: var(--primary-dark);
            color: var(--text-light);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary-blue);
        }
        .search-btn {
            padding: 0 2rem;
            border-radius: 0 50px 50px 0;
            border: none;
            background: var(--gradient-primary);
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: linear-gradient(135deg, var(--accent-purple), var(--primary-blue));
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            align-items: start;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: var(--bg-card);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
        }
        .sidebar {
            position: sticky;
            top: 100px;
        }
        .sidebar-widget {
            background: var(--bg-card);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            margin-bottom: var(--spacing-md);
        }
        .sidebar-widget h3 {
            font-size: 1.3rem;
            margin-bottom: var(--spacing-sm);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .featured-img {
            margin: var(--spacing-lg) 0;
            position: relative;
            overflow: hidden;
            border-radius: var(--border-radius);
            border: 2px solid var(--border-color);
        }
        .featured-img img {
            width: 100%;
            transition: transform 0.5s ease;
        }
        .featured-img:hover img {
            transform: scale(1.03);
        }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: var(--text-gray);
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-md) 0;
            background: rgba(0,0,0,0.2);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .data-table th {
            background: var(--primary-blue);
            color: white;
            padding: 1rem;
            text-align: left;
            font-weight: 600;
        }
        .data-table td {
            padding: 1rem;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-gray);
        }
        .data-table tr:hover {
            background: rgba(0,102,255,0.05);
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .tip-box {
            background: rgba(45, 156, 219, 0.1);
            border-left: 5px solid #2d9cdb;
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .warning-box {
            background: rgba(243, 156, 18, 0.1);
            border-left: 5px solid var(--warning);
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        ul.content-list, ol.content-list {
            padding-left: 1.5rem;
            margin-bottom: var(--spacing-md);
            color: var(--text-gray);
        }
        ul.content-list li, ol.content-list li {
            margin-bottom: 0.8rem;
            padding-left: 0.5rem;
        }
        .rating-section, .comment-section {
            background: var(--bg-card);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            margin-top: var(--spacing-lg);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
            max-width: 600px;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            font-size: 2rem;
            gap: 0.2rem;
            margin-bottom: var(--spacing-sm);
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: var(--text-gray);
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--warning);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: var(--text-light);
        }
        .form-input, .form-textarea {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius);
            background: var(--primary-dark);
            color: var(--text-light);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(0,102,255,0.2);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: var(--spacing-sm);
            background: var(--bg-card);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            margin: var(--spacing-xl) 0 var(--spacing-md);
        }
        .web-link {
            padding: 0.8rem;
            background: rgba(255,255,255,0.03);
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: rgba(0,102,255,0.1);
            transform: translateX(5px);
        }
        .web-link a {
            color: var(--text-gray);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .web-link a:before {
            content: '▸';
            color: var(--accent-neon);
        }
        .web-link a:hover {
            color: var(--accent-neon);
            text-decoration: none;
        }
        footer {
            background: var(--gradient-dark);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            border-top: 1px solid var(--border-color);
            text-align: center;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }
        .footer-links a {
            color: var(--text-gray);
        }
        .footer-links a:hover {
            color: var(--accent-neon);
        }
        .copyright {
            color: var(--text-gray);
            font-size: 0.9rem;
            padding-top: var(--spacing-md);
            border-top: 1px solid var(--border-color);
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero-stats {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
                gap: var(--spacing-sm);
            }
            .search-input, .search-btn {
                border-radius: var(--border-radius);
                width: 100%;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }