* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        :root {
            --primary: #4a00e0; 
            --secondary: #8e2de2; 
            --accent: #00d2ff; 
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --success: #28a745;
            --warning: #ffc107;
            --danger: #dc3545;
            --shadow: 0 5px 15px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        .site-header {
            background: linear-gradient(135deg, var(--dark), var(--primary));
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent);
            transform: translateY(-2px);
        }
        .my-logo i { color: var(--accent); }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            color: var(--accent);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: width 0.3s;
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav ul { list-style: none; }
        .mobile-nav li { margin: 0.8rem 0; }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            display: block;
            padding: 0.5rem;
            border-radius: 5px;
            transition: var(--transition);
        }
        .mobile-nav a:hover { background: rgba(255,255,255,0.1); }
        .breadcrumb {
            background: var(--light);
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #dee2e6;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb span { color: var(--gray); }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        .article-content {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .article-header { margin-bottom: 2.5rem; }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            color: var(--gray);
            font-size: 0.95rem;
            border-bottom: 2px solid #f0f0f0;
            padding-bottom: 1rem;
            margin-bottom: 1.5rem;
        }
        .last-updated { color: var(--primary); font-weight: 600; }
        .article-body h2 {
            font-size: 2rem;
            color: var(--primary);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eaeaea;
        }
        .article-body h3 {
            font-size: 1.6rem;
            color: var(--secondary);
            margin: 2rem 0 1rem;
        }
        .article-body h4 {
            font-size: 1.3rem;
            color: var(--dark);
            margin: 1.8rem 0 0.8rem;
        }
        .article-body p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .article-body strong {
            color: var(--dark);
            font-weight: 700;
            background-color: rgba(138, 43, 226, 0.05);
            padding: 0 3px;
        }
        .article-body em { font-style: italic; color: #555; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding-left: 1.5rem;
            margin: 1.5rem 0;
            font-style: italic;
            color: var(--gray);
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 0 8px 8px 0;
        }
        .article-body ul, .article-body ol {
            margin: 1.5rem 0 1.5rem 2rem;
        }
        .article-body li { margin-bottom: 0.8rem; }
        .highlight-box {
            background: linear-gradient(135deg, #fdfcfb, #f5f7fa);
            border: 1px solid #d0d7e2;
            border-left: 5px solid var(--accent);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .inline-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--primary);
            transition: var(--transition);
        }
        .inline-link:hover {
            color: var(--secondary);
            border-bottom: 1px solid var(--secondary);
        }
        .featured-image {
            margin: 2.5rem 0;
            text-align: center;
        }
        .featured-image img {
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            margin: 0 auto;
        }
        .img-caption {
            font-size: 0.95rem;
            color: var(--gray);
            margin-top: 0.8rem;
            font-style: italic;
        }
        .interactive-section {
            background: #f1f5fd;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border: 1px solid #d1d9e6;
        }
        .interactive-section h3 { margin-top: 0; }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            width: 100%;
            padding: 0.9rem 1rem;
            border: 1px solid #ced4da;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.2);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(142, 45, 226, 0.3);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star-rating input { display: none; }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--warning);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            padding: 1.8rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f0f0f0;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px dashed #eee;
        }
        .related-links a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--primary);
            transform: translateX(5px);
        }
        .trending-topics .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag {
            background: #eef2ff;
            color: var(--primary);
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }
        .tag:hover {
            background: var(--primary);
            color: white;
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
            color: white;
        }
        .footer-links h4 {
            color: var(--accent);
            margin-bottom: 1.2rem;
            font-size: 1.2rem;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.7rem; }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover { color: white; padding-left: 5px; }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        friend-link a {
            color: var(--accent) !important;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            .main-container { grid-template-columns: 1fr; }
            .article-header h1 { font-size: 2.4rem; }
        }
        @media (max-width: 768px) {
            .header-container { padding: 0.5rem 1rem; }
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            .main-container, .breadcrumb { padding: 0 1rem; }
            .article-content { padding: 1.5rem; }
            .article-header h1 { font-size: 2rem; }
            .article-body h2 { font-size: 1.7rem; }
            .article-body h3 { font-size: 1.4rem; }
            .meta-info { flex-direction: column; gap: 0.5rem; }
            .footer-container { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .article-header h1 { font-size: 1.8rem; }
            .btn { width: 100%; justify-content: center; }
            .star-rating label { font-size: 1.5rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar-widget {
            animation: fadeIn 0.8s ease-out;
        }
        .highlight-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
            transition: var(--transition);
        }