:root {
            --primary-color: #2c5aa0;
            --secondary-color: #d4a017;
            --accent-color: #e63946;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --text-color: #333333;
            --border-radius: 8px;
            --box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #f5f7fa;
            overflow-x: hidden;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #1a3a6e);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--secondary-color);
            text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
        }
        .logo i {
            font-size: 2rem;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0.8rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        nav a:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        .active {
            background-color: var(--secondary-color);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1rem auto;
            padding: 0 20px;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '>';
            margin-left: 0.5rem;
            color: #666;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin-top: 1.5rem;
        }
        main {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 2rem;
            margin-bottom: 2rem;
        }
        aside {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 1.5rem;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
        }
        h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            color: #444;
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 4px solid var(--secondary-color);
            padding: 1.2rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .important {
            font-weight: 700;
            color: var(--accent-color);
        }
        .emoji {
            font-size: 1.2rem;
            margin: 0 3px;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: var(--border-radius);
            margin: 2rem auto;
            display: block;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.01);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }
        .search-box {
            background-color: #f0f4f8;
            padding: 1.5rem;
            border-radius: var(--border-radius);
            margin-bottom: 2rem;
        }
        .search-form {
            display: flex;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius) 0 0 var(--border-radius);
            font-size: 1rem;
        }
        .search-btn {
            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: var(--transition);
        }
        .search-btn:hover {
            background-color: #1a3a6e;
        }
        .user-interaction {
            background-color: #f9f9f9;
            padding: 2rem;
            border-radius: var(--border-radius);
            margin-top: 3rem;
        }
        .rating-section, .comment-section {
            margin-bottom: 2.5rem;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #ffc107;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            font-size: 1rem;
            margin-bottom: 1rem;
            resize: vertical;
            min-height: 120px;
        }
        .submit-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: var(--border-radius);
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background-color: #1a3a6e;
            transform: translateY(-2px);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin: 3rem 0 2rem;
        }
        .web-link {
            background-color: #f0f4f8;
            padding: 1rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #e1e8f0;
            transform: translateY(-3px);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
            display: block;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .copyright {
            margin-top: 1.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            width: 100%;
            color: #aaa;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .container {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0;
            }
            nav a {
                display: block;
                padding: 0.8rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container, .header-container, .breadcrumb {
                padding: 0 15px;
            }
            main, aside {
                padding: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--border-radius);
                margin-bottom: 0.5rem;
            }
            .search-btn {
                border-radius: var(--border-radius);
                padding: 0.8rem;
            }
        }
        @media print {
            header, nav, aside, .search-box, .user-interaction, .web-links, footer {
                display: none;
            }
            body {
                background-color: white;
            }
            .container {
                grid-template-columns: 1fr;
                max-width: 100%;
            }
            main {
                box-shadow: none;
                padding: 0;
            }
        }