* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a365d;
            --secondary-color: #e53e3e;
            --accent-color: #f6ad55;
            --text-color: #2d3748;
            --light-bg: #f7fafc;
            --dark-bg: #2d3748;
            --border-color: #e2e8f0;
            --success-color: #38a169;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #2c5282 100%);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Impact', 'Arial Black', sans-serif;
            font-size: 2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            text-shadow: 3px 3px 0 var(--secondary-color);
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: translateY(-3px);
            text-shadow: 5px 5px 0 var(--secondary-color);
        }
        .my-logo span {
            color: var(--accent-color);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .main-nav a.active {
            background-color: var(--secondary-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .breadcrumb {
            background-color: white;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb-list {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            font-size: 0.9rem;
        }
        .breadcrumb-list li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--text-color);
        }
        .breadcrumb-list a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb-list a:hover {
            text-decoration: underline;
        }
        .main-container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        .article-content {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .article-header {
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid var(--secondary-color);
        }
        h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--primary-color);
            margin: 1.5rem 0 0.75rem;
        }
        h4 {
            font-size: 1.1rem;
            color: var(--primary-color);
            margin: 1.25rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.25rem;
            text-align: justify;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f6f9fc 0%, #edf2f7 100%);
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .stat-number {
            font-size: 2rem;
            font-weight: bold;
            color: var(--secondary-color);
            margin-bottom: 0.5rem;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            margin: 2rem auto;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .article-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.5s ease;
        }
        .article-image:hover img {
            transform: scale(1.02);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #718096;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .feature-section {
            margin: 3rem 0;
            padding: 2rem;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-radius: 8px;
        }
        .search-container {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
        }
        .search-input:focus {
            outline: none;
            border-color: var(--primary-color);
        }
        .search-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
        }
        .rating-container {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .rating-star {
            font-size: 2rem;
            color: #e2e8f0;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-star:hover,
        .rating-star.active {
            color: var(--accent-color);
            transform: scale(1.2);
        }
        .comments-container {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .comment-form {
            margin-bottom: 2rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-input,
        .form-textarea {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar-section {
            margin-bottom: 2rem;
        }
        .sidebar-section h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        .related-links {
            list-style: none;
        }
        .related-links li {
            margin-bottom: 0.75rem;
        }
        .related-links a {
            color: var(--text-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .related-links a:hover {
            background-color: var(--light-bg);
            color: var(--primary-color);
            transform: translateX(5px);
        }
        .related-links i {
            color: var(--secondary-color);
        }
        .site-footer {
            background: var(--dark-bg);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .friend-links {
            background: rgba(255, 255, 255, 0.1);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .friend-links h3 {
            color: white;
            margin-bottom: 1rem;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            color: white;
            padding: 0.5rem 1rem;
            margin: 0.25rem;
            border-radius: 4px;
            text-decoration: none;
            transition: var(--transition);
        }
        friend-link:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #a0aec0;
        }
        .last-updated {
            text-align: center;
            color: #718096;
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
        }
        .text-bold {
            font-weight: bold;
            color: var(--primary-color);
        }
        .text-highlight {
            background: linear-gradient(120deg, var(--accent-color) 0%, var(--accent-color) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                background: var(--primary-color);
                transition: var(--transition);
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            .main-nav.active {
                left: 0;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 1rem;
            }
            .main-container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            .site-header,
            .sidebar,
            .search-container,
            .rating-container,
            .comments-container,
            .site-footer {
                display: none;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }