* { 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: #333;
            background-color: #fefefe;
            max-width: 100%;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: Georgia, 'Times New Roman', Times, serif; color: #2c3e50; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; margin-top: 3rem; padding-bottom: 0.5rem; border-bottom: 2px solid #ecf0f1; }
        h3 { font-size: 1.8rem; margin-top: 2.5rem; color: #34495e; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .lead { font-size: 1.3rem; color: #555; font-weight: 300; }
        .highlight { background-color: #fff9e6; padding: 0.2rem 0.5rem; border-radius: 3px; }
        strong { color: #2c3e50; }
        em { color: #7f8c8d; }
        blockquote { border-left: 5px solid #3498db; padding-left: 1.5rem; margin: 2rem 0; font-style: italic; color: #555; }
        ul, ol { margin-left: 2rem; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.5rem; }
        a { color: #2980b9; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #1a5276; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header { background: linear-gradient(135deg, #1a237e 0%, #283593 100%); color: white; padding: 1rem 0; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-container { display: flex; justify-content: space-between; align-items: center; }
        .logo a { font-size: 2.2rem; font-weight: 800; color: white; display: flex; align-items: center; }
        .logo-icon { margin-right: 10px; color: #FFD700; }
        .logo-text { font-family: 'Trebuchet MS', sans-serif; letter-spacing: 1px; }
        .main-nav ul { display: flex; list-style: none; }
        .main-nav li { margin-left: 2rem; }
        .main-nav a { color: #ecf0f1; font-weight: 600; padding: 0.5rem 0; position: relative; }
        .main-nav a:after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 3px; background: #FFD700; transition: width 0.3s; }
        .main-nav a:hover:after { width: 100%; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: white; cursor: pointer; }
        .breadcrumb { background-color: #f8f9fa; padding: 1rem 0; margin-bottom: 2rem; border-bottom: 1px solid #dee2e6; }
        .breadcrumb ol { display: flex; list-style: none; margin: 0; }
        .breadcrumb li { margin-right: 0.5rem; font-size: 0.9rem; }
        .breadcrumb li:not(:last-child):after { content: '›'; margin-left: 0.5rem; color: #7f8c8d; }
        .breadcrumb a { color: #5a6268; }
        .hero { margin-bottom: 3rem; }
        .featured-image { border-radius: 10px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.15); margin-bottom: 2rem; }
        .img-caption { text-align: center; font-style: italic; color: #7f8c8d; margin-top: 0.5rem; font-size: 0.95rem; }
        .search-module { background: #f1f8ff; padding: 2rem; border-radius: 10px; margin: 3rem 0; text-align: center; }
        .search-form { display: flex; max-width: 600px; margin: 1rem auto 0; }
        .search-input { flex-grow: 1; padding: 0.9rem 1.2rem; border: 2px solid #3498db; border-radius: 50px 0 0 50px; font-size: 1rem; outline: none; }
        .search-btn { background: #3498db; color: white; border: none; padding: 0 2rem; border-radius: 0 50px 50px 0; cursor: pointer; font-weight: 600; transition: background 0.3s; }
        .search-btn:hover { background: #2980b9; }
        .article-body { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; margin-bottom: 4rem; }
        @media (max-width: 992px) { .article-body { grid-template-columns: 1fr; } }
        .article-main { min-width: 0; } 
        .sidebar { background: #f9f9f9; padding: 1.5rem; border-radius: 10px; align-self: start; position: sticky; top: 120px; }
        .sidebar h3 { font-size: 1.5rem; margin-top: 0; }
        .sidebar ul { list-style: none; margin-left: 0; }
        .sidebar li { margin-bottom: 0.8rem; border-bottom: 1px dotted #ddd; padding-bottom: 0.8rem; }
        .sidebar li:last-child { border-bottom: none; }
        .interactive-section { background: #fff; border-radius: 10px; padding: 2rem; margin: 3rem 0; box-shadow: 0 5px 15px rgba(0,0,0,0.05); border: 1px solid #eaeaea; }
        .section-title { display: flex; align-items: center; gap: 10px; margin-bottom: 1.5rem; }
        .section-title i { color: #3498db; }
        .rating-form, .comment-form { display: grid; gap: 1rem; margin-top: 1.5rem; }
        .stars { display: flex; gap: 5px; margin-bottom: 1rem; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #FFD700; }
        .form-group { display: flex; flex-direction: column; }
        .form-group label { margin-bottom: 0.5rem; font-weight: 600; }
        .form-control { padding: 0.8rem; border: 1px solid #bdc3c7; border-radius: 5px; font-size: 1rem; }
        textarea.form-control { min-height: 150px; resize: vertical; }
        .submit-btn { background: #2ecc71; color: white; border: none; padding: 0.9rem 1.5rem; border-radius: 5px; font-size: 1.1rem; font-weight: 600; cursor: pointer; transition: background 0.3s; align-self: start; }
        .submit-btn:hover { background: #27ae60; }
        .footer-links { background: #2c3e50; padding: 3rem 0; margin-top: 4rem; }
        .web-links-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.5rem; }
        .web-link { background: rgba(255,255,255,0.05); padding: 1.2rem; border-radius: 5px; transition: transform 0.3s, background 0.3s; }
        .web-link:hover { background: rgba(255,255,255,0.1); transform: translateY(-5px); }
        .web-link a { color: #ecf0f1; font-size: 1.1rem; display: block; }
        .web-link a:hover { color: #FFD700; }
        .copyright { background: #1a252f; color: #bdc3c7; text-align: center; padding: 1.5rem 0; font-size: 0.9rem; }
        .copyright a { color: #3498db; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .header-container { flex-wrap: wrap; }
            .main-nav { order: 3; width: 100%; margin-top: 1rem; display: none; }
            .main-nav.active { display: block; }
            .main-nav ul { flex-direction: column; }
            .main-nav li { margin: 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
            .main-nav a { display: block; padding: 0.8rem 0; }
            .hamburger { display: block; }
            .search-form { flex-direction: column; }
            .search-input, .search-btn { border-radius: 50px; width: 100%; }
            .search-input { margin-bottom: 0.5rem; }
        }
        .pulse { animation: pulse 2s infinite; }
        @keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.7; } 100% { opacity: 1; } }
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }