:root {
            --primary: #0066b2;
            --secondary: #ffcc00;
            --dark: #1a1a2e;
            --light: #f8f9fa;
            --gray: #6c757d;
            --success: #28a745;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #fff;
            color: #333;
            line-height: 1.6;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--dark) 0%, var(--primary) 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        .logo span {
            color: white;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .desktop-nav a:hover, .desktop-nav a.active {
            background: rgba(255,255,255,0.15);
            color: var(--secondary);
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            flex-direction: column;
            padding: 1rem;
            display: none;
            box-shadow: 0 5px 10px rgba(0,0,0,0.2);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            background: var(--primary);
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background: #f1f3f5;
            padding: 0.8rem 0;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-bar {
            background: var(--light);
            padding: 2rem 0;
            border-bottom: 1px solid #dee2e6;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: #005096;
        }
        main {
            padding: 3rem 0;
        }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .article-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-content h1 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 1rem;
            color: var(--gray);
            margin-bottom: 2rem;
            font-size: 0.95rem;
        }
        .article-meta i {
            margin-right: 0.5rem;
        }
        .featured-image {
            width: 100%;
            border-radius: var(--radius);
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .article-section {
            margin-bottom: 3rem;
        }
        h2, h3 {
            color: var(--primary);
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid var(--secondary);
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background: #fff9db;
            border-left: 4px solid #ffd43b;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .tip {
            background: #d1ecf1;
            border-left: 4px solid #0dcaf0;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .cta-button {
            display: inline-block;
            background: linear-gradient(to right, var(--primary), #0083cc);
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            margin: 1rem 0;
            transition: var(--transition);
            box-shadow: 0 4px 10px rgba(0,102,178,0.3);
        }
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,102,178,0.4);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--radius);
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
        }
        .sidebar-widget {
            background: var(--light);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            margin-top: 0;
            color: var(--dark);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary);
        }
        .widget-list {
            list-style: none;
        }
        .widget-list li {
            padding: 0.8rem 0;
            border-bottom: 1px dashed #ddd;
        }
        .widget-list li:last-child {
            border-bottom: none;
        }
        .widget-list a:hover {
            color: var(--primary);
            padding-left: 5px;
        }
        .interaction-section {
            background: var(--light);
            padding: 2rem;
            border-radius: var(--radius);
            margin-top: 3rem;
        }
        .rating-widget {
            text-align: center;
            margin-bottom: 2rem;
        }
        .stars {
            font-size: 2rem;
            color: #ddd;
            margin: 1rem 0;
            cursor: pointer;
        }
        .stars i:hover,
        .stars i.active {
            color: #ffcc00;
        }
        .comment-form, .rating-form {
            display: grid;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-group input, .form-group textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ced4da;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--radius);
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            justify-self: start;
        }
        .submit-btn:hover {
            background: #005096;
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 1rem;
        }
        .footer-links h4 {
            color: var(--secondary);
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255,255,255,0.05);
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1rem 0;
            border-left: 4px solid var(--secondary);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .header-content {
                padding: 0 1rem;
            }
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }