* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.6;
            color: #e0e0e0;
            background: #0a0e17;
            background-image: radial-gradient(circle at 15% 50%, rgba(21, 74, 139, 0.1) 0%, transparent 55%);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: #4fc3f7; margin-bottom: 0.75rem; }
        h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); text-align: center; margin-top: 1.5rem; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); border-bottom: 2px solid #1a237e; padding-bottom: 0.5rem; margin-top: 2.5rem; }
        h3 { font-size: 1.5rem; color: #29b6f6; margin-top: 2rem; }
        h4 { font-size: 1.2rem; color: #80deea; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        a { color: #29b6f6; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #ffeb3b; text-decoration: underline; }
        .highlight { color: #ffeb3b; font-weight: bold; }
        .pub-date { color: #b0bec5; font-style: italic; font-size: 0.9rem; }
        .container {
            width: min(100% - 3rem, 1200px);
            margin-inline: auto;
        }
        main.container { display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem; padding: 2rem 0; }
        @media (max-width: 992px) { main.container { grid-template-columns: 1fr; } }
        .site-header { background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%); padding: 1rem 0; border-bottom: 3px solid #1a237e; }
        .header-inner { display: flex; justify-content: space-between; align-items: center; }
        .my-logo { font-size: 2rem; font-weight: 800; background: linear-gradient(90deg, #4fc3f7, #ffeb3b); -webkit-background-clip: text; -webkit-text-fill-color: transparent; text-decoration: none; }
        .my-logo:hover { text-decoration: none; }
        .nav-desktop { display: flex; gap: 1.5rem; }
        .nav-desktop a { color: #bbdefb; padding: 0.5rem; font-weight: 500; }
        .hamburger { display: none; background: none; border: none; color: #bbdefb; font-size: 1.8rem; cursor: pointer; }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .nav-mobile { display: none; flex-direction: column; background: #1b263b; position: absolute; top: 100%; left: 0; width: 100%; padding: 1rem; z-index: 1000; }
            .nav-mobile.active { display: flex; }
            .nav-mobile a { padding: 0.75rem; border-bottom: 1px solid #37474f; }
        }
        .breadcrumb { padding: 1rem 0; font-size: 0.9rem; color: #90a4ae; }
        .breadcrumb a { color: #bbdefb; }
        .search-bar { margin: 1.5rem 0; }
        .search-form { display: flex; }
        .search-form input { flex-grow: 1; padding: 0.75rem 1rem; border: 1px solid #37474f; background: #1c2836; color: #fff; border-radius: 4px 0 0 4px; }
        .search-form button { background: #1a237e; color: white; border: none; padding: 0 1.5rem; border-radius: 0 4px 4px 0; cursor: pointer; transition: background 0.3s; }
        .search-form button:hover { background: #283593; }
        .article-content { background: rgba(16, 20, 31, 0.8); padding: 2rem; border-radius: 8px; box-shadow: 0 5px 15px rgba(0, 20, 80, 0.3); }
        .article-img { margin: 2rem auto; border: 3px solid #1a237e; border-radius: 8px; overflow: hidden; max-width: 800px; }
        .article-img img { width: 100%; transition: transform 0.5s ease; }
        .article-img img:hover { transform: scale(1.02); }
        .caption { text-align: center; font-style: italic; color: #b0bec5; padding-top: 0.5rem; }
        .sidebar { background: rgba(22, 27, 40, 0.9); padding: 1.5rem; border-radius: 8px; align-self: start; position: sticky; top: 20px; }
        .sidebar h3 { margin-top: 0; }
        .related-links { list-style: none; }
        .related-links li { margin-bottom: 0.75rem; padding-bottom: 0.75rem; border-bottom: 1px dashed #37474f; }
        .related-links a { display: block; padding: 0.3rem 0; }
        .interactive-section { background: rgba(16, 20, 31, 0.8); padding: 2rem; margin-top: 2.5rem; border-radius: 8px; }
        .rating-widget { display: flex; align-items: center; gap: 1rem; margin-bottom: 2rem; }
        .stars { display: flex; gap: 0.3rem; }
        .star { font-size: 1.8rem; color: #37474f; cursor: pointer; transition: color 0.2s; }
        .star.active, .star:hover { color: #ffeb3b; }
        .comment-form textarea, .comment-form input { width: 100%; padding: 0.8rem; margin-bottom: 1rem; background: #1c2836; border: 1px solid #37474f; border-radius: 4px; color: white; }
        .comment-form button { background: #1a237e; color: white; padding: 0.8rem 2rem; border: none; border-radius: 4px; cursor: pointer; font-weight: bold; }
        .comment-form button:hover { background: #283593; }
        .site-footer { background: #0d1b2a; padding: 3rem 0 1.5rem; margin-top: 3rem; border-top: 3px solid #1a237e; }
        .footer-content { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h4 { color: #4fc3f7; margin-bottom: 1rem; }
        friend-link { display: block; margin-bottom: 0.5rem; }
        .copyright { text-align: center; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid #37474f; color: #90a4ae; font-size: 0.9rem; }
        .tag { display: inline-block; background: #1a237e; color: #bbdefb; padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; margin-right: 0.5rem; margin-bottom: 0.5rem; }
        .quote { border-left: 4px solid #4fc3f7; padding-left: 1.5rem; margin: 1.5rem 0; font-style: italic; color: #b0bec5; }
        .cta-button { display: inline-block; background: linear-gradient(90deg, #1a237e, #4fc3f7); color: white; padding: 0.8rem 1.8rem; border-radius: 4px; font-weight: bold; margin-top: 1rem; transition: transform 0.3s, box-shadow 0.3s; }
        .cta-button:hover { transform: translateY(-3px); box-shadow: 0 5px 15px rgba(79, 195, 247, 0.4); text-decoration: none; }