* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #2c3e50;
            background: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        :root {
            --primary: #1a5276;
            --secondary: #e67e22;
            --accent: #16a085;
            --light: #ecf0f1;
            --dark: #2c3e50;
            --shadow: 0 5px 15px rgba(0,0,0,0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        .site-header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 5%;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo span { color: var(--secondary); }
        .nav-desktop { display: flex; gap: 2rem; }
        .nav-desktop a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .nav-desktop a:hover { background: var(--light); color: var(--primary); }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background: white;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
            padding: 1rem;
        }
        .nav-mobile.active { display: flex; }
        .nav-mobile a {
            padding: 1rem;
            text-decoration: none;
            color: var(--dark);
            border-bottom: 1px solid #eee;
        }
        .nav-mobile a:hover { background: var(--light); }
        .breadcrumb {
            padding: 1rem 5%;
            background: #f1f8ff;
            font-size: 0.9rem;
        }
        .breadcrumb a { color: var(--primary); text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-container {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        @media (max-width: 992px) {
            .main-container { grid-template-columns: 1fr; }
        }
        .content-area {
            background: white;
            padding: 2.5rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-meta {
            color: #7f8c8d;
            font-size: 0.9rem;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid var(--light);
        }
        h1 {
            color: var(--primary);
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        h2 {
            color: var(--secondary);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--accent);
        }
        h3 { color: var(--dark); margin: 2rem 0 1rem; }
        h4 { color: #555; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .lead { font-size: 1.2rem; color: var(--primary); font-weight: 600; }
        em { color: var(--accent); font-style: italic; }
        strong { color: #c0392b; }
        .highlight {
            background: #fffde7;
            padding: 1.5rem;
            border-left: 5px solid var(--secondary);
            margin: 2rem 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .insight-box {
            background: #e8f4fc;
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
        }
        .feature-box {
            background: linear-gradient(135deg, #fdfcfb 0%, #f5f7fa 100%);
            border: 2px dashed var(--accent);
            padding: 2rem;
            border-radius: var(--radius);
            margin: 2.5rem 0;
            text-align: center;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 1rem;
        }
        .search-form input, .comment-form textarea, .comment-form input, .rating-form select {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: var(--radius);
            font-size: 1rem;
        }
        .comment-form textarea { min-height: 120px; resize: vertical; }
        button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.9rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        button:hover { background: var(--secondary); transform: translateY(-3px); }
        .stars { color: #f1c40f; font-size: 1.5rem; margin: 1rem 0; }
        .stars i { cursor: pointer; margin: 0 2px; }
        .sidebar {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 { color: var(--primary); margin-top: 0; }
        .related-links { list-style: none; }
        .related-links li { margin-bottom: 1rem; }
        .related-links a {
            text-decoration: none;
            color: var(--dark);
            padding: 0.7rem 1rem;
            display: block;
            background: #f8f9fa;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .related-links a:hover {
            background: var(--primary);
            color: white;
            padding-left: 1.5rem;
        }
        .article-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 2rem 0;
            border: 5px solid white;
            box-shadow: var(--shadow);
        }
        site-footer {
            background: var(--dark);
            color: white;
            padding: 3rem 5% 1.5rem;
            margin-top: 4rem;
        }
        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            display: block;
            margin-bottom: 0.8rem;
            transition: var(--transition);
        }
        .footer-links a:hover { color: white; padding-left: 5px; }
        friend-link {
            display: block;
            background: #34495e;
            padding: 1rem;
            border-radius: var(--radius);
            margin: 1rem 0;
            text-align: center;
        }
        friend-link a { color: #1abc9c; font-weight: bold; }
        .copyright {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #4a6572;
            font-size: 0.9rem;
            color: #95a5a6;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            .header-container { flex-wrap: wrap; }
            .nav-desktop { display: none; }
            .hamburger { display: block; }
            .content-area { padding: 1.5rem; }
            .main-container { gap: 2rem; }
            .feature-box { padding: 1.5rem; }
        }