:root {
            --primary-color: #d32f2f;
            --secondary-color: #1a237e;
            --accent-color: #ffab00;
            --dark-bg: #121212;
            --light-bg: #f5f5f5;
            --text-dark: #212121;
            --text-light: #f5f5f5;
            --gray-border: #ddd;
            --spacing-unit: 1rem;
            --max-width: 1200px;
            --border-radius: 8px;
            --transition-speed: 0.3s;
        }
        * {
            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-dark);
            background-color: var(--light-bg);
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--secondary-color), var(--dark-bg));
            color: var(--text-light);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .header-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-unit);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--accent-color);
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: color var(--transition-speed);
        }
        .logo a:hover {
            color: #ffd54f;
            text-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-light);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--border-radius);
            transition: all var(--transition-speed);
        }
        .main-nav a:hover,
        .main-nav a.active {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
        }
        .breadcrumb {
            max-width: var(--max-width);
            margin: 1rem auto;
            padding: 0 var(--spacing-unit);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--secondary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .main-content {
            max-width: var(--max-width);
            margin: 2rem auto;
            padding: 0 var(--spacing-unit);
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .article-container {
            background: white;
            border-radius: var(--border-radius);
            padding: 2.5rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .article-header {
            border-bottom: 3px solid var(--primary-color);
            padding-bottom: 1.5rem;
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 1.5rem;
            color: #666;
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
        .article-meta i {
            margin-right: 0.5rem;
            color: var(--primary-color);
        }
        h2 {
            font-size: 2rem;
            color: var(--secondary-color);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--gray-border);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.3rem;
            color: #555;
            margin: 1.8rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--secondary-color);
            background-color: #e8eaf6;
            padding: 1.5rem;
            border-left: 5px solid var(--accent-color);
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
        }
        .highlight-box {
            background: linear-gradient(to right, #fce4ec, #f3e5f5);
            padding: 2rem;
            border-radius: var(--border-radius);
            border-left: 6px solid var(--primary-color);
            margin: 2rem 0;
        }
        .highlight-box h3 {
            color: #7b1fa2;
        }
        .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: var(--border-radius);
            padding: 1.5rem;
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
            text-align: center;
            border-top: 4px solid var(--accent-color);
            transition: transform var(--transition-speed);
        }
        .stat-card:hover {
            transform: translateY(-5px);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary-color);
            line-height: 1;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 2rem 0;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
            transition: transform var(--transition-speed);
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .inline-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted transparent;
            transition: border-color var(--transition-speed);
        }
        .inline-link:hover {
            border-bottom-color: var(--primary-color);
        }
        .quote {
            font-size: 1.3rem;
            font-style: italic;
            color: var(--secondary-color);
            padding: 2rem;
            background-color: #e3f2fd;
            border-radius: var(--border-radius);
            margin: 2.5rem 0;
            position: relative;
            border-left: 6px solid var(--secondary-color);
        }
        .quote::before {
            content: "“";
            font-size: 4rem;
            color: var(--primary-color);
            position: absolute;
            top: -10px;
            left: 10px;
            opacity: 0.3;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: 0 4px 8px rgba(0,0,0,0.05);
        }
        .comparison-table th,
        .comparison-table td {
            padding: 1rem;
            text-align: left;
            border: 1px solid var(--gray-border);
        }
        .comparison-table th {
            background-color: var(--secondary-color);
            color: white;
            font-weight: 600;
        }
        .comparison-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        .comparison-table tr:hover {
            background-color: #e1f5fe;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--border-radius);
            padding: 1.8rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--secondary-color);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .search-form {
            display: flex;
            margin-bottom: 1.5rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid var(--gray-border);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: border-color var(--transition-speed);
        }
        .search-input:focus {
            border-color: var(--primary-color);
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
            cursor: pointer;
            transition: background-color var(--transition-speed);
        }
        .search-button:hover {
            background-color: #b71c1c;
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .rating-stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffc107;
            margin: 0.5rem 0;
        }
        .rating-stars i {
            cursor: pointer;
            transition: transform var(--transition-speed);
        }
        .rating-stars i:hover {
            transform: scale(1.3);
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-group label {
            font-weight: 600;
            color: #555;
        }
        .form-control {
            padding: 0.8rem;
            border: 2px solid var(--gray-border);
            border-radius: var(--border-radius);
            font-size: 1rem;
            transition: border-color var(--transition-speed);
        }
        .form-control:focus {
            border-color: var(--primary-color);
            outline: none;
        }
        .submit-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 1rem;
            border-radius: var(--border-radius);
            font-weight: 600;
            cursor: pointer;
            transition: background-color var(--transition-speed);
        }
        .submit-button:hover {
            background-color: #283593;
        }
        .related-links ul {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.8rem;
            padding: 0.8rem;
            background-color: #f9f9f9;
            border-radius: var(--border-radius);
            transition: background-color var(--transition-speed);
        }
        .related-links li:hover {
            background-color: #e3f2fd;
        }
        .related-links a {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        .related-links a:hover {
            color: var(--primary-color);
        }
        .site-footer {
            background-color: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-unit);
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-logo {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-color);
            margin-bottom: 1rem;
        }
        .footer-links h3 {
            color: var(--accent-color);
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            transition: color var(--transition-speed);
        }
        .footer-links a:hover {
            color: var(--accent-color);
        }
        friend-link {
            display: block;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #444;
            color: #999;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .sidebar {
                order: -1;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--secondary-color);
                padding: 1rem;
                box-shadow: 0 8px 16px rgba(0,0,0,0.2);
                border-top: 2px solid var(--primary-color);
            }
            .main-nav.active ul {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            .article-container {
                padding: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        .text-bold {
            font-weight: 800;
            color: var(--primary-color);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        .clearfix::after {
            content: "";
            clear: both;
            display: table;
        }