* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f9f9f9;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }
        a { color: #2c5e8f; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e63946; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; padding: 0 20px; }
        .flex { display: flex; flex-wrap: wrap; }
        .grid { display: grid; gap: 30px; }
        .content-grid { grid-template-columns: 1fr 300px; }
        header { background: linear-gradient(135deg, #1a3a5f 0%, #2c5e8f 100%); color: white; padding: 1.5rem 0; margin-bottom: 2rem; border-radius: 0 0 12px 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
        .logo a { font-size: 2.8rem; font-weight: 800; color: white; font-family: Georgia, serif; letter-spacing: -1px; }
        .logo a span { color: #4cc9f0; }
        .logo a:hover { text-shadow: 0 0 8px rgba(76, 201, 240, 0.7); }
        .top-bar { justify-content: space-between; align-items: center; }
        .main-nav ul { list-style: none; }
        .main-nav li { display: inline-block; margin-left: 2rem; }
        .main-nav a { color: #e0f7ff; font-weight: 600; font-size: 1.1rem; padding: 8px 5px; border-bottom: 2px solid transparent; }
        .main-nav a:hover, .main-nav a.active { color: white; border-bottom-color: #e63946; }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; background: none; border: none; color: white; }
        .breadcrumb { padding: 1rem 0; font-size: 0.95rem; border-bottom: 1px solid #eaeaea; margin-bottom: 2rem; }
        .breadcrumb a { color: #666; }
        .breadcrumb i { margin: 0 10px; color: #aaa; }
        .search-module { background: #e3f2fd; padding: 2rem; border-radius: 12px; margin: 2rem 0; text-align: center; }
        .search-form { max-width: 700px; margin: 0 auto; }
        .search-form input[type="search"] { width: 75%; padding: 15px 20px; border: 2px solid #2c5e8f; border-radius: 50px 0 0 50px; font-size: 1.1rem; outline: none; }
        .search-form button { width: 25%; padding: 15px; background: #e63946; color: white; border: none; border-radius: 0 50px 50px 0; font-size: 1.1rem; font-weight: bold; cursor: pointer; transition: background 0.3s; }
        .search-form button:hover { background: #c1121f; }
        main { margin: 3rem 0; }
        .article-content { background: white; padding: 3rem; border-radius: 12px; box-shadow: 0 6px 25px rgba(0,0,0,0.05); }
        .hero-img { width: 100%; height: 400px; object-fit: cover; border-radius: 10px; margin: 2rem 0; border: 5px solid #2c5e8f; }
        h1 { color: #1a3a5f; font-size: 2.8rem; margin-bottom: 1.5rem; border-left: 8px solid #e63946; padding-left: 20px; line-height: 1.2; }
        h2 { color: #2c5e8f; font-size: 2.2rem; margin: 2.5rem 0 1rem 0; padding-bottom: 0.5rem; border-bottom: 2px dashed #4cc9f0; }
        h3 { color: #1a3a5f; font-size: 1.8rem; margin: 2rem 0 1rem 0; }
        p { margin-bottom: 1.8rem; font-size: 1.15rem; text-align: justify; }
        .highlight { background-color: #fffacd; padding: 2rem; border-left: 5px solid #ffd700; margin: 2rem 0; border-radius: 0 8px 8px 0; font-style: italic; }
        .term { font-weight: bold; color: #1a3a5f; }
        .stats-box { background: #f0f8ff; border: 2px solid #4cc9f0; padding: 1.5rem; border-radius: 10px; margin: 2rem 0; }
        .quote { font-family: Georgia, serif; font-size: 1.4rem; color: #555; text-align: center; padding: 2rem; border-top: 3px solid #e63946; border-bottom: 3px solid #e63946; margin: 3rem 0; }
        aside { background: #f1f8ff; padding: 2rem; border-radius: 12px; height: fit-content; }
        .sidebar-widget { margin-bottom: 2.5rem; }
        .sidebar-widget h3 { font-size: 1.5rem; color: #e63946; margin-bottom: 1rem; }
        .sidebar-widget ul { list-style: none; }
        .sidebar-widget li { padding: 12px 0; border-bottom: 1px dotted #ccc; }
        .sidebar-widget li:before { content: "🎯"; margin-right: 10px; }
        .interaction-module { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); margin: 3rem 0; }
        .interaction-module h2 { color: #e63946; }
        .form-group { margin-bottom: 1.5rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: #444; }
        input, textarea, select { width: 100%; padding: 12px 15px; border: 1px solid #bdc3c7; border-radius: 8px; font-size: 1rem; font-family: inherit; }
        textarea { min-height: 150px; resize: vertical; }
        .submit-btn { background: linear-gradient(to right, #2c5e8f, #1a3a5f); color: white; padding: 15px 40px; border: none; border-radius: 50px; font-size: 1.1rem; font-weight: bold; cursor: pointer; transition: transform 0.3s, box-shadow 0.3s; }
        .submit-btn:hover { transform: translateY(-3px); box-shadow: 0 7px 15px rgba(44, 94, 143, 0.4); }
        .star-rating { display: flex; justify-content: center; gap: 10px; font-size: 2rem; margin: 1rem 0; cursor: pointer; }
        .star-rating i { color: #ddd; transition: color 0.2s; }
        .star-rating i:hover, .star-rating i.active { color: #ffd700; }
        .web-links-section { background: #1a3a5f; color: white; padding: 3rem; border-radius: 12px; margin: 3rem 0; }
        .web-links-section h2 { color: #4cc9f0; border-bottom-color: #4cc9f0; text-align: center; }
        .web-links-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-top: 2rem; }
        .web-link { background: rgba(255,255,255,0.1); padding: 1.2rem; border-radius: 8px; transition: all 0.3s; }
        .web-link:hover { background: rgba(76, 201, 240, 0.3); transform: translateY(-5px); }
        .web-link a { color: #e0f7ff; font-weight: 600; display: block; }
        .web-link a:hover { color: white; }
        footer { background: #111; color: #aaa; padding: 3rem 0 1.5rem; margin-top: 4rem; border-radius: 12px 12px 0 0; }
        .footer-content { justify-content: space-between; align-items: flex-start; margin-bottom: 2rem; }
        .footer-logo { font-size: 2rem; font-weight: bold; color: #4cc9f0; margin-bottom: 1rem; }
        .footer-nav a { color: #bbb; display: block; margin-bottom: 0.8rem; }
        .footer-nav a:hover { color: white; }
        .copyright { text-align: center; padding-top: 1.5rem; border-top: 1px solid #333; font-size: 0.9rem; color: #777; }
        @media (max-width: 1024px) {
            .content-grid { grid-template-columns: 1fr; }
            aside { order: -1; }
        }
        @media (max-width: 768px) {
            body { padding: 0 10px; }
            .main-nav ul { display: none; position: absolute; top: 100%; left: 0; width: 100%; background: #1a3a5f; flex-direction: column; padding: 1rem; z-index: 1000; }
            .main-nav.active ul { display: flex; }
            .main-nav li { display: block; margin: 0; text-align: center; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
            .hamburger { display: block; }
            .logo a { font-size: 2.2rem; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .search-form input[type="search"], .search-form button { width: 100%; border-radius: 50px; margin-bottom: 10px; }
            .footer-content { flex-direction: column; }
        }