* { 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: #f9f9f9;
            background: linear-gradient(135deg, #f9f9f9 0%, #f1f5f9 100%);
            max-width: 120rem;
            margin: 0 auto;
            padding: 0 1rem;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-family: Georgia, 'Times New Roman', Times, serif; color: #1a365d; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: 2.8rem; margin-top: 2rem; border-bottom: 4px solid #c53030; padding-bottom: 0.5rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; padding-left: 0.5rem; border-left: 5px solid #2b6cb0; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #2d3748; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; color: #4a5568; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        a { color: #2b6cb0; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #c53030; }
        .highlight { background-color: #fffacd; padding: 0.2rem 0.4rem; border-radius: 3px; }
        .bold { font-weight: 800; color: #1a365d; }
        .last-updated { font-style: italic; color: #718096; margin-bottom: 2rem; padding: 0.5rem; background-color: #e2e8f0; border-radius: 5px; }
        .site-header { background: linear-gradient(to right, #1a365d, #2d3748); color: white; padding: 1.5rem 0; border-radius: 0 0 10px 10px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); margin-bottom: 2rem; }
        .header-container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
        .my-logo a { font-size: 2.2rem; font-weight: 800; color: white; display: flex; align-items: center; }
        .my-logo i { color: #f6ad55; margin-right: 10px; }
        .main-nav ul { display: flex; list-style: none; gap: 2rem; }
        .main-nav a { color: #cbd5e0; font-weight: 600; padding: 0.5rem 1rem; border-radius: 5px; }
        .main-nav a:hover, .main-nav a:focus { background-color: #4a5568; color: white; }
        .hamburger { display: none; font-size: 1.8rem; background: none; border: none; color: white; cursor: pointer; }
        .breadcrumb { padding: 1rem; background-color: #edf2f7; border-radius: 5px; margin-bottom: 2rem; }
        .breadcrumb ul { display: flex; list-style: none; flex-wrap: wrap; }
        .breadcrumb li:not(:last-child)::after { content: '›'; margin: 0 10px; color: #718096; }
        .breadcrumb a { color: #4a5568; }
        .content-wrapper { display: grid; grid-template-columns: 1fr 300px; gap: 3rem; margin-bottom: 3rem; }
        @media (max-width: 992px) { .content-wrapper { grid-template-columns: 1fr; } }
        .main-article { background-color: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 6px 18px rgba(0,0,0,0.08); }
        .article-section { margin-bottom: 3rem; }
        .featured-img { width: 100%; border-radius: 10px; margin: 2rem 0; border: 5px solid #e2e8f0; }
        .sidebar { display: flex; flex-direction: column; gap: 2rem; }
        .widget { background-color: white; padding: 1.8rem; border-radius: 10px; box-shadow: 0 4px 10px rgba(0,0,0,0.06); }
        .widget h3 { font-size: 1.5rem; margin-top: 0; border-bottom: 2px solid #e2e8f0; padding-bottom: 0.5rem; }
        .search-form { display: flex; }
        .search-form input { flex-grow: 1; padding: 0.8rem; border: 2px solid #cbd5e0; border-radius: 5px 0 0 5px; font-size: 1rem; }
        .search-form button { background-color: #2b6cb0; color: white; border: none; padding: 0 1.2rem; border-radius: 0 5px 5px 0; cursor: pointer; transition: background 0.3s; }
        .search-form button:hover { background-color: #1a365d; }
        .rating-form, .comment-form { display: flex; flex-direction: column; gap: 1rem; }
        .rating-form input, .comment-form input, .comment-form textarea { padding: 0.8rem; border: 1px solid #cbd5e0; border-radius: 5px; font-family: inherit; }
        .comment-form textarea { min-height: 120px; resize: vertical; }
        .form-btn { background-color: #38a169; color: white; border: none; padding: 0.9rem; border-radius: 5px; font-weight: bold; cursor: pointer; transition: background 0.3s; }
        .form-btn:hover { background-color: #2d7c52; }
        .star-rating { display: flex; flex-direction: row-reverse; justify-content: flex-end; font-size: 1.8rem; color: #e2e8f0; }
        .star-rating input { display: none; }
        .star-rating label { cursor: pointer; }
        .star-rating input:checked ~ label, .star-rating label:hover, .star-rating label:hover ~ label { color: #f6ad55; }
        .internal-links { display: flex; flex-wrap: wrap; gap: 1rem; margin: 2rem 0; }
        .internal-link { background: linear-gradient(to right, #edf2f7, #e2e8f0); padding: 1rem 1.5rem; border-radius: 8px; font-weight: 600; border: 2px solid transparent; }
        .internal-link:hover { border-color: #2b6cb0; background: #e2e8f0; }
        .site-footer { background: linear-gradient(to right, #1a202c, #2d3748); color: #cbd5e0; padding: 3rem 0; border-radius: 10px 10px 0 0; margin-top: 3rem; }
        .footer-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
        .footer-section h4 { color: #f7fafc; border-bottom: 2px solid #4a5568; padding-bottom: 0.5rem; }
        .friend-links { display: flex; flex-direction: column; gap: 0.8rem; }
        friend-link { display: block; padding: 0.5rem 0; border-bottom: 1px dashed #4a5568; }
        .copyright { text-align: center; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid #4a5568; color: #a0aec0; font-size: 0.9rem; }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .header-container { flex-direction: column; align-items: flex-start; }
            .main-nav ul { flex-direction: column; width: 100%; gap: 0.5rem; margin-top: 1rem; display: none; }
            .main-nav.active ul { display: flex; }
            .hamburger { display: block; }
            .main-article { padding: 1.5rem; }
            .content-wrapper { gap: 2rem; }
        }
        .info-box { background-color: #ebf8ff; border-left: 5px solid #4299e1; padding: 1.5rem; margin: 2rem 0; border-radius: 0 8px 8px 0; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .text-center { text-align: center; }
        .mb-3 { margin-bottom: 3rem; }