* { 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;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: #3a7bd5; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #00d2ff; }
        img { max-width: 100%; height: auto; display: block; }
        header { background: linear-gradient(135deg, #1a2980, #26d0ce); color: white; padding: 1.5rem 0; margin-bottom: 2rem; border-radius: 0 0 10px 10px; }
        .header-container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; padding: 0 1rem; }
        .my-logo { font-size: 2.2rem; font-weight: 800; letter-spacing: 1px; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .my-logo a { color: white; }
        .my-logo span { color: #ffde59; }
        nav ul { display: flex; list-style: none; gap: 1.8rem; }
        nav a { color: white; font-weight: 600; padding: 0.5rem 0.8rem; border-radius: 5px; }
        nav a:hover { background-color: rgba(255,255,255,0.15); }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; background: none; border: none; color: white; }
        .breadcrumb { padding: 1rem 1rem 0.5rem; font-size: 0.9rem; color: #666; }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem; margin: 2rem 0; }
        @media (max-width: 768px) { main { grid-template-columns: 1fr; } }
        .article-content { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.06); }
        h1 { font-size: 2.8rem; color: #1a2980; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: 2rem; color: #26a0da; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid #eee; }
        h3 { font-size: 1.6rem; color: #333; margin: 1.8rem 0 0.8rem; }
        h4 { font-size: 1.3rem; color: #555; margin: 1.5rem 0 0.6rem; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        .lead { font-size: 1.3rem; font-weight: 600; color: #1a2980; background: #f0f8ff; padding: 1.2rem; border-left: 5px solid #3a7bd5; border-radius: 0 8px 8px 0; margin: 2rem 0; }
        .highlight { background-color: #fff9db; padding: 0.2rem 0.4rem; border-radius: 3px; font-weight: 600; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .feature-img { width: 100%; border-radius: 10px; margin: 2rem auto; box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
        .last-updated { font-style: italic; color: #777; text-align: right; margin-top: 3rem; padding-top: 1rem; border-top: 1px dashed #ccc; }
        aside { background: white; padding: 2rem; border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.06); align-self: start; }
        .sidebar-widget { margin-bottom: 2.5rem; }
        .sidebar-widget h3 { font-size: 1.4rem; color: #1a2980; margin-bottom: 1.2rem; padding-bottom: 0.5rem; border-bottom: 1px solid #eee; }
        .search-form { display: flex; }
        .search-form input { flex: 1; padding: 0.8rem; border: 2px solid #3a7bd5; border-radius: 6px 0 0 6px; font-size: 1rem; }
        .search-form button { background: #3a7bd5; color: white; border: none; padding: 0 1.2rem; border-radius: 0 6px 6px 0; cursor: pointer; transition: background 0.3s; }
        .search-form button:hover { background: #2a6bc5; }
        .rating-section, .comment-section { background: #f8fafc; padding: 1.5rem; border-radius: 8px; margin-top: 2rem; }
        .star-rating { display: flex; gap: 0.3rem; margin: 1rem 0; }
        .star { font-size: 1.8rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .star:hover, .star.active { color: #ffc107; }
        .comment-form textarea { width: 100%; padding: 1rem; border: 1px solid #ccc; border-radius: 6px; margin-bottom: 1rem; font-family: inherit; resize: vertical; min-height: 120px; }
        .btn { background: linear-gradient(to right, #3a7bd5, #00d2ff); color: white; border: none; padding: 0.8rem 1.8rem; border-radius: 6px; font-weight: 600; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; }
        .btn:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(58, 123, 213, 0.4); }
        footer { background: #1a1a2e; color: #ccc; padding: 3rem 2rem; margin-top: 4rem; border-radius: 10px 10px 0 0; }
        .footer-content { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-section h3 { color: #fff; margin-bottom: 1.5rem; font-size: 1.4rem; }
        friend-link { display: block; margin-bottom: 0.7rem; }
        friend-link a { color: #00d2ff; }
        .copyright { text-align: center; margin-top: 2rem; padding-top: 2rem; border-top: 1px solid #333; color: #999; font-size: 0.9rem; }
        @media (max-width: 768px) {
            .header-container { flex-direction: column; align-items: flex-start; }
            nav { width: 100%; margin-top: 1rem; display: none; }
            nav.active { display: block; }
            nav ul { flex-direction: column; gap: 0.5rem; }
            .hamburger { display: block; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .article-content { padding: 1.5rem; }
        }