* { 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: #f8f9fa;
            max-width: 100vw;
            overflow-x: hidden;
        }
        :root {
            --primary: #1e88e5;
            --primary-dark: #1565c0;
            --secondary: #e53935;
            --accent: #43a047;
            --dark: #212121;
            --light: #f5f5f5;
            --gray: #757575;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --transition: all 0.3s ease;
        }
        .header {
            background: linear-gradient(135deg, var(--dark), #37474f);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo a {
            color: white;
            text-decoration: none;
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i { color: var(--secondary); }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #e0e0e0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .desktop-nav a:hover, .desktop-nav a.active {
            background-color: rgba(255, 255, 255, 0.15);
            color: white;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a {
            color: white;
            padding: 1rem;
            text-decoration: none;
            border-bottom: 1px solid #444;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-nav a:hover { background-color: #37474f; }
        .breadcrumb {
            background-color: #edf2f7;
            padding: 1rem 2rem;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            max-width: 1400px;
            margin: 0 auto;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a { color: var(--primary); text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        .main-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        .content-area { background: white; padding: 2.5rem; border-radius: 12px; box-shadow: var(--shadow); }
        .article-header { margin-bottom: 2.5rem; border-bottom: 3px solid var(--primary); padding-bottom: 1.5rem; }
        .article-header h1 {
            font-size: 2.8rem;
            color: var(--dark);
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .meta {
            display: flex;
            gap: 1.5rem;
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 1rem;
        }
        .meta i { margin-right: 5px; }
        .hero-image {
            width: 100%;
            height: 450px;
            object-fit: cover;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .article-content h2 {
            font-size: 2rem;
            color: var(--primary-dark);
            margin: 2.5rem 0 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed #e0e0e0;
        }
        .article-content h3 {
            font-size: 1.6rem;
            color: var(--dark);
            margin: 2rem 0 1rem;
        }
        .article-content p {
            margin-bottom: 1.5rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 5px solid #ffb300;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .tip-box {
            background-color: #e8f5e9;
            border: 1px solid var(--accent);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .tip-box strong { color: var(--accent); }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: linear-gradient(145deg, #e3f2fd, #bbdefb);
            padding: 1.5rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        .stat-card .number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            display: block;
        }
        .internal-link {
            color: var(--primary-dark);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--primary);
            transition: var(--transition);
        }
        .internal-link:hover {
            color: var(--secondary);
            border-bottom-style: solid;
        }
        .sidebar { display: flex; flex-direction: column; gap: 2rem; }
        .widget {
            background: white;
            padding: 1.8rem;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--dark);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--primary);
            font-size: 1.4rem;
        }
        .search-form { display: flex; }
        .search-form input {
            flex: 1;
            padding: 0.9rem 1rem;
            border: 2px solid #ccc;
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover { background-color: var(--primary-dark); }
        .rating-widget .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1.5rem 0;
            font-size: 2rem;
            color: #ffc107;
        }
        .rating-form input, .comment-form textarea, .comment-form input {
            width: 100%;
            padding: 0.9rem;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
        }
        .rating-form button, .comment-form button {
            width: 100%;
            padding: 1rem;
            background-color: var(--accent);
            color: white;
            border: none;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover, .comment-form button:hover { background-color: #2e7d32; }
        .popular-links ul {
            list-style: none;
        }
        .popular-links li {
            margin-bottom: 0.8rem;
            padding-bottom: 0.8rem;
            border-bottom: 1px solid #eee;
        }
        .popular-links a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .popular-links a:hover { color: var(--primary); padding-left: 5px; }
        .footer {
            background-color: var(--dark);
            color: #ccc;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            max-width: 1400px;
            margin: 0 auto 2.5rem;
        }
        .web-link {
            background-color: #37474f;
            padding: 1.2rem;
            border-radius: 6px;
            transition: var(--transition);
        }
        .web-link:hover {
            background-color: #455a64;
            transform: translateY(-3px);
        }
        .web-link a {
            color: #bbdefb;
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .footer-copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            max-width: 1400px;
            margin: 0 auto;
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 1024px) {
            .main-container { grid-template-columns: 1fr; gap: 2rem; }
            .article-header h1 { font-size: 2.4rem; }
        }
        @media (max-width: 768px) {
            .header-container { padding: 0; }
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .main-container, .breadcrumb { padding: 0 1rem; }
            .content-area { padding: 1.8rem; }
            .article-header h1 { font-size: 2rem; }
            .hero-image { height: 300px; }
            .stats-grid { grid-template-columns: 1fr; }
            .footer-links { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 480px) {
            .footer-links { grid-template-columns: 1fr; }
            .meta { flex-direction: column; gap: 0.5rem; }
        }