:root {
            --primary: #c62828;
            --primary-dark: #8e0000;
            --secondary: #1a237e;
            --accent: #ff6f00;
            --light: #f5f5f5;
            --dark: #212121;
            --gray: #757575;
            --light-gray: #e0e0e0;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--dark);
            background-color: #fafafa;
            overflow-x: hidden;
        }
        .header {
            background: linear-gradient(135deg, var(--dark), var(--secondary));
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent);
        }
        .logo:hover {
            color: var(--accent);
            transform: scale(1.02);
            transition: var(--transition);
        }
        .nav-desktop {
            display: flex;
            gap: 2.5rem;
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            position: relative;
            padding: 0.5rem 0;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background-color: var(--accent);
            transition: var(--transition);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: var(--dark);
            position: absolute;
            top: 80px;
            left: 0;
            width: 100%;
            padding: var(--spacing-md);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            z-index: 999;
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile .nav-link {
            padding: 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumbs {
            max-width: 1400px;
            margin: 0 auto;
            padding: var(--spacing-sm) var(--spacing-md);
            background-color: var(--light);
            border-bottom: 1px solid var(--light-gray);
        }
        .breadcrumbs a {
            color: var(--gray);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumbs a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .breadcrumbs span {
            color: var(--dark);
            font-weight: 500;
        }
        .search-container {
            max-width: 1400px;
            margin: var(--spacing-md) auto;
            padding: 0 var(--spacing-md);
        }
        .search-box {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: 2px solid var(--light-gray);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1.1rem;
            outline: none;
            transition: var(--transition);
        }
        .search-input:focus {
            border-color: var(--primary);
        }
        .search-button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 2rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .search-button:hover {
            background: var(--primary-dark);
        }
        .main-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: var(--spacing-md);
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: var(--spacing-lg);
        }
        @media (max-width: 1024px) {
            .main-container {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background: white;
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: var(--spacing-lg);
            border-bottom: 3px solid var(--primary);
            padding-bottom: var(--spacing-md);
        }
        h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--secondary);
            margin: var(--spacing-lg) 0 var(--spacing-md);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin: var(--spacing-md) 0 var(--spacing-sm);
        }
        h4 {
            font-size: 1.4rem;
            color: var(--gray);
            margin: var(--spacing-sm) 0;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 500;
            color: var(--secondary);
            background-color: rgba(26, 35, 126, 0.05);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
            margin-bottom: var(--spacing-lg);
        }
        .highlight {
            background-color: #fff9e6;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            border-left: 4px solid var(--accent);
            margin: var(--spacing-md) 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: var(--spacing-md);
            margin: var(--spacing-lg) 0;
        }
        .stat-card {
            background: white;
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            box-shadow: var(--shadow);
            text-align: center;
            border-top: 4px solid var(--primary);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .stat-label {
            font-size: 1.1rem;
            color: var(--gray);
            font-weight: 600;
        }
        .image-container {
            margin: var(--spacing-lg) 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.01);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }
        .image-caption {
            margin-top: 0.5rem;
            font-style: italic;
            color: var(--gray);
            font-size: 0.95rem;
        }
        .content-block {
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);
            border-bottom: 1px solid var(--light-gray);
        }
        .key-points {
            background: linear-gradient(to right, rgba(198, 40, 40, 0.05), transparent);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin: var(--spacing-md) 0;
        }
        .key-points ul {
            padding-left: 1.5rem;
        }
        .key-points li {
            margin-bottom: 0.8rem;
            font-size: 1.1rem;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: var(--spacing-lg) 0;
            box-shadow: var(--shadow);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        .comparison-table th {
            background-color: var(--secondary);
            color: white;
            padding: 1.2rem;
            text-align: left;
            font-weight: 600;
        }
        .comparison-table td {
            padding: 1rem 1.2rem;
            border-bottom: 1px solid var(--light-gray);
        }
        .comparison-table tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        .comparison-table tr:hover {
            background-color: rgba(198, 40, 40, 0.05);
        }
        .rating-badge {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent), #ff9100);
            color: white;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-weight: 700;
            margin-left: 1rem;
            box-shadow: 0 4px 8px rgba(255, 111, 0, 0.3);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .widget-title {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-bottom: var(--spacing-md);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--light-gray);
        }
        .toc {
            position: sticky;
            top: 100px;
        }
        .toc ul {
            list-style: none;
        }
        .toc li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            border-left: 3px solid transparent;
            transition: var(--transition);
        }
        .toc li:hover {
            border-left-color: var(--primary);
        }
        .toc a {
            color: var(--dark);
            text-decoration: none;
            display: block;
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .toc a:hover {
            color: var(--primary);
            padding-left: 0.5rem;
        }
        .interaction-section {
            margin-top: var(--spacing-xl);
            background: white;
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 2rem;
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);
            border-bottom: 1px solid var(--light-gray);
        }
        .stars {
            display: flex;
            gap: 0.5rem;
        }
        .star {
            font-size: 2rem;
            color: var(--light-gray);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
            transform: scale(1.1);
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-input,
        .form-textarea {
            padding: 1rem;
            border: 1px solid var(--light-gray);
            border-radius: var(--border-radius);
            font-size: 1rem;
            font-family: inherit;
            transition: var(--transition);
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(198, 40, 40, 0.1);
        }
        .form-textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            align-self: flex-start;
        }
        .form-button:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }
        .comments-list {
            margin-top: var(--spacing-lg);
        }
        .comment {
            background: #f8f9fa;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-md);
            border-left: 4px solid var(--secondary);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .comment-author {
            font-weight: 700;
            color: var(--dark);
        }
        .comment-rating {
            color: #ffc107;
        }
        .web-links {
            max-width: 1400px;
            margin: var(--spacing-xl) auto 0;
            padding: 0 var(--spacing-md);
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
        }
        .web-link {
            background: linear-gradient(to right, var(--secondary), #283593);
            color: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }
        .web-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.2);
            background: linear-gradient(to right, var(--primary), #d32f2f);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            display: block;
        }
        .footer {
            background: var(--dark);
            color: white;
            padding: var(--spacing-lg) 0;
            margin-top: var(--spacing-xl);
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: var(--spacing-lg);
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            margin-bottom: var(--spacing-sm);
            color: white;
        }
        .footer-about {
            font-size: 1rem;
            line-height: 1.6;
            color: #bdbdbd;
        }
        .footer-links h3,
        .footer-contact h3 {
            font-size: 1.4rem;
            margin-bottom: var(--spacing-md);
            color: white;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #bdbdbd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 0.5rem;
        }
        .footer-contact p {
            color: #bdbdbd;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .copyright {
            max-width: 1400px;
            margin: var(--spacing-lg) auto 0;
            padding: var(--spacing-md) var(--spacing-md) 0;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            color: #bdbdbd;
            font-size: 0.95rem;
        }
        @media (max-width: 768px) {
            html {
                font-size: 15px;
            }
            .header-container {
                height: 70px;
                padding: 0 var(--spacing-sm);
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            .article-content {
                padding: var(--spacing-md);
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .rating-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 1rem;
            }
            .web-links-container {
                grid-template-columns: 1fr;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
        }
        @media (max-width: 480px) {
            .main-container {
                padding: var(--spacing-sm);
            }
            .article-content {
                padding: var(--spacing-sm);
            }
            .comparison-table {
                font-size: 0.9rem;
            }
            .comparison-table th,
            .comparison-table td {
                padding: 0.8rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .stagger-delay-1 { animation-delay: 0.1s; }
        .stagger-delay-2 { animation-delay: 0.2s; }
        .stagger-delay-3 { animation-delay: 0.3s; }
        .stagger-delay-4 { animation-delay: 0.4s; }