:root {
            --primary-color: #0a2342;
            --secondary-color: #2a5caa;
            --accent-color: #ff6b35;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --dark-bg: #0a2342;
            --border-color: #dee2e6;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            color: var(--text-color);
            line-height: 1.7;
            background-color: #fff;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: var(--secondary-color);
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-color);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: var(--accent-color);
        }
        .logo i {
            color: var(--accent-color);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-links a {
            color: white;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: var(--light-bg);
            padding: 0.8rem 0;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: #6c757d;
        }
        main {
            padding: 2rem 0;
        }
        .article-header {
            margin-bottom: 3rem;
            text-align: center;
        }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 2rem;
        }
        .meta-info span {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .content-section {
            margin-bottom: 3rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--secondary-color);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 4px 4px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 4px solid var(--secondary-color);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-card h4 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .comparison-table th, .comparison-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        .comparison-table th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        .comparison-table tr:nth-child(even) {
            background-color: var(--light-bg);
        }
        .comparison-table tr:hover {
            background-color: #e9f2ff;
        }
        .interactive-section {
            background-color: var(--light-bg);
            padding: 2.5rem;
            border-radius: 10px;
            margin: 3rem 0;
        }
        .search-box, .comment-form, .rating-form {
            margin-bottom: 2.5rem;
        }
        .interactive-section h3 {
            margin-top: 0;
            color: var(--primary-color);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        label {
            font-weight: 600;
            color: var(--primary-color);
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(42, 92, 170, 0.2);
        }
        button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.9rem 1.8rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        button:hover {
            background-color: var(--accent-color);
            transform: translateY(-2px);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .star-rating .star:hover,
        .star-rating .star.active {
            color: #ffc107;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.2rem;
            margin: 3rem 0;
        }
        .web-link {
            background-color: var(--light-bg);
            padding: 1rem 1.5rem;
            border-radius: 6px;
            border-left: 4px solid var(--secondary-color);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e9f2ff;
            transform: translateX(5px);
        }
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: white;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .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: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--primary-color);
                flex-direction: column;
                align-items: center;
                justify-content: flex-start;
                padding-top: 2rem;
                gap: 2rem;
                transition: var(--transition);
                z-index: 999;
            }
            .nav-links.active {
                left: 0;
            }
            .hamburger {
                display: block;
            }
            .header-content {
                padding: 0 10px;
            }
            .stats-grid { grid-template-columns: 1fr; }
            .web-links { grid-template-columns: 1fr; }
            .interactive-section { padding: 1.5rem; }
            .meta-info { flex-direction: column; gap: 0.5rem; }
        }
        @media (max-width: 576px) {
            .container { padding: 0 15px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .featured-image { max-height: 300px; }
        }
        .bold { font-weight: 700; color: var(--primary-color); }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }