* { 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: #2c3e50;
            background-color: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { color: #1a5276; margin-bottom: 1rem; line-height: 1.3; font-weight: 700; }
        h1 { font-size: 2.8rem; margin-top: 1.5rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; padding-bottom: 0.5rem; border-bottom: 2px solid #d4ac0d; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #2874a6; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; }
        .lead { font-size: 1.3rem; color: #5d6d7e; font-weight: 300; }
        .highlight { background-color: #fff9e6; padding: 1.5rem; border-left: 5px solid #d4ac0d; margin: 2rem 0; border-radius: 0 8px 8px 0; }
        .term { font-weight: bold; color: #1a5276; }
        .emoji { font-size: 1.2em; margin-right: 0.3em; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        main { padding: 2rem 0; background: #fff; box-shadow: 0 0 15px rgba(0,0,0,0.05); border-radius: 8px; margin-top: 2rem; }
        header { background: linear-gradient(135deg, #1a5276 0%, #2874a6 100%); color: white; padding: 1rem 0; 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: #f9e79f; text-decoration: none; font-family: 'Georgia', serif; letter-spacing: 1px; }
        .logo a:hover { color: #fff; }
        .desktop-nav { display: flex; gap: 2rem; }
        .desktop-nav a { color: #ecf0f1; text-decoration: none; font-weight: 600; padding: 0.5rem 1rem; border-radius: 4px; transition: all 0.3s; }
        .desktop-nav a:hover, .desktop-nav a.active { background: rgba(255, 255, 255, 0.15); color: #f9e79f; }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; }
        .mobile-nav { display: none; flex-direction: column; background: #1a5276; position: absolute; top: 100%; left: 0; width: 100%; padding: 1rem; box-shadow: 0 5px 10px rgba(0,0,0,0.2); }
        .mobile-nav.active { display: flex; }
        .mobile-nav a { color: white; padding: 0.8rem; text-decoration: none; border-bottom: 1px solid #2e86c1; }
        .mobile-nav a:hover { background: #2874a6; }
        .breadcrumb { padding: 1rem 0; font-size: 0.9rem; color: #7f8c8d; }
        .breadcrumb a { color: #3498db; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-box { background: #e8f4fc; padding: 2rem; border-radius: 8px; margin: 2rem 0; text-align: center; }
        .search-box h3 { color: #1a5276; }
        #searchForm { display: flex; max-width: 600px; margin: 1rem auto 0; }
        #searchInput { flex: 1; padding: 0.9rem; border: 2px solid #3498db; border-radius: 8px 0 0 8px; font-size: 1rem; }
        #searchBtn { background: #3498db; color: white; border: none; padding: 0 1.5rem; border-radius: 0 8px 8px 0; cursor: pointer; font-size: 1rem; transition: background 0.3s; }
        #searchBtn:hover { background: #2874a6; }
        .article-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 2rem;
        }
        @media (max-width: 992px) {
            .article-grid { grid-template-columns: 1fr; }
        }
        .sidebar { background: #f1f8ff; padding: 1.5rem; border-radius: 8px; height: fit-content; }
        .sidebar-widget { margin-bottom: 2rem; }
        .sidebar-widget h4 { color: #1a5276; font-size: 1.3rem; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 1px dashed #aed6f1; }
        .interactive-section { background: #f8f9fa; padding: 2rem; border-radius: 8px; border: 1px solid #eaeaea; margin: 3rem 0; }
        .interactive-section h3 { color: #1a5276; }
        .rating-box { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0; }
        .stars { display: flex; gap: 0.3rem; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #f1c40f; }
        .comment-form textarea, .comment-form input { width: 100%; padding: 0.8rem; margin-bottom: 1rem; border: 1px solid #bdc3c7; border-radius: 4px; font-family: inherit; }
        .btn { display: inline-block; background: #2ecc71; color: white; padding: 0.8rem 1.8rem; border: none; border-radius: 6px; cursor: pointer; font-weight: 600; transition: all 0.3s; text-decoration: none; }
        .btn:hover { background: #27ae60; transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0,0,0,0.1); }
        .btn-secondary { background: #3498db; }
        .btn-secondary:hover { background: #2980b9; }
        .article-img { margin: 2.5rem auto; border-radius: 10px; overflow: hidden; box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
        .article-img figcaption { text-align: center; font-style: italic; color: #7f8c8d; padding: 0.8rem; background: #f8f9fa; }
        .web-links-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; margin: 3rem 0; }
        .web-link { background: #e8f4fc; padding: 1.2rem; border-radius: 6px; border-left: 4px solid #3498db; }
        .web-link a { color: #1a5276; text-decoration: none; font-weight: 600; }
        .web-link a:hover { color: #2874a6; text-decoration: underline; }
        footer { background: #1a5276; color: #ecf0f1; padding: 3rem 0 1.5rem; margin-top: 3rem; }
        .footer-container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h4 { color: #f9e79f; margin-bottom: 1.2rem; }
        .footer-section a { color: #bdc3c7; text-decoration: none; display: block; margin-bottom: 0.5rem; }
        .footer-section a:hover { color: white; }
        .copyright { text-align: center; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid #2e86c1; color: #bdc3c7; font-size: 0.9rem; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            .header-container { padding: 0 15px; }
            .article-grid { gap: 2rem; }
        }