:root {
            --primary-blue: #1a365d;
            --accent-gold: #d4af37;
            --light-bg: #f7fafc;
            --text-dark: #2d3748;
            --text-light: #718096;
            --success-green: #38a169;
            --border-color: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            --shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            color: var(--text-dark);
            background-color: var(--light-bg);
            line-height: 1.7;
            overflow-x: hidden;
        }
        .site-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, #2d4a7c 100%);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1280px;
            margin: 0 auto;
        }
        .logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--accent-gold);
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover,
        .desktop-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary-blue);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            padding: 0.8rem 1rem;
            text-decoration: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            max-width: 1280px;
            margin: 1rem auto;
            padding: 0 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
        }
        .container {
            max-width: 1280px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .main-content {
            background: white;
            border-radius: 12px;
            padding: 3rem;
            box-shadow: var(--shadow);
        }
        aside.sidebar {
            background: white;
            border-radius: 12px;
            padding: 2rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-blue);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--accent-gold);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-blue);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px dashed var(--border-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--text-dark);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--text-dark);
            font-weight: 600;
            background: linear-gradient(to right, #fef3c7, #fde68a);
            padding: 1.5rem;
            border-left: 5px solid var(--accent-gold);
            border-radius: 0 8px 8px 0;
            margin: 2rem 0;
        }
        .highlight {
            background-color: #e6fffa;
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--success-green);
            margin: 2rem 0;
        }
        .term {
            font-weight: bold;
            color: var(--primary-blue);
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 5px;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 12px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
            transition: transform 0.5s ease;
        }
        .featured-image:hover {
            transform: scale(1.01);
        }
        .quote {
            font-style: italic;
            color: var(--text-light);
            border-left: 4px solid var(--accent-gold);
            padding-left: 1.5rem;
            margin: 2rem 0;
        }
        .search-box {
            background: var(--light-bg);
            padding: 2rem;
            border-radius: 12px;
            margin: 2.5rem 0;
            text-align: center;
        }
        .search-box h3 {
            margin-top: 0;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-input {
            flex: 1;
            padding: 0.9rem 1.2rem;
            border: 2px solid var(--border-color);
            border-radius: 8px 0 0 8px;
            font-size: 1rem;
        }
        .search-btn {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 0 1.8rem;
            border-radius: 0 8px 8px 0;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background: #2d4a7c;
        }
        .rating-section, .comments-section {
            margin: 3rem 0;
            padding: 2rem;
            background: var(--light-bg);
            border-radius: 12px;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
            font-size: 1.8rem;
            color: #ffc107;
        }
        .star-rating i {
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
            margin-top: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-input, .form-textarea {
            padding: 0.9rem;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-btn {
            background: var(--primary-blue);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            align-self: flex-start;
            transition: all 0.3s;
        }
        .submit-btn:hover {
            background: #2d4a7c;
            transform: translateY(-2px);
        }
        .comment-list {
            margin-top: 2.5rem;
        }
        .comment {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.8rem;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .sidebar-widget {
            margin-bottom: 2.5rem;
        }
        .sidebar-widget h4 {
            color: var(--primary-blue);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-gold);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .stat-card {
            background: var(--light-bg);
            padding: 1.2rem;
            border-radius: 8px;
            text-align: center;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-blue);
        }
        .footer-links {
            background: var(--primary-blue);
            color: white;
            padding: 3rem 2rem 2rem;
        }
        .links-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        .web-link {
            background: rgba(255, 255, 255, 0.05);
            padding: 1.2rem;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .web-link:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        .footer-copyright {
            background: #0f1e3d;
            color: #a0aec0;
            text-align: center;
            padding: 1.5rem;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            aside.sidebar {
                position: static;
            }
            h1 {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .main-content {
                padding: 2rem;
            }
            .header-container, .breadcrumb, .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-btn {
                width: 100%;
                border-radius: 8px;
                margin-bottom: 0.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @media print {
            .site-header, .sidebar, .search-box,
            .rating-section, .comments-section,
            .footer-links, .footer-copyright {
                display: none;
            }
            .container {
                grid-template-columns: 1fr;
                max-width: 100%;
            }
        }