* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #1a365d;
            --secondary: #e53e3e;
            --accent: #f6ad55;
            --light: #f7fafc;
            --dark: #2d3748;
            --gray: #a0aec0;
            --success: #38a169;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f0f4f8;
            color: var(--dark);
            line-height: 1.7;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul, ol {
            list-style-position: inside;
            margin-left: 1rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section {
            padding: 4rem 0;
        }
        .btn {
            display: inline-block;
            background: var(--secondary);
            color: white;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: #c53030;
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }
        .text-center { text-align: center; }
        .text-primary { color: var(--primary); }
        .text-secondary { color: var(--secondary); }
        .bg-light { background-color: var(--light); }
        .bg-dark { background-color: var(--primary); color: white; }
        .rounded { border-radius: 10px; }
        .shadow { box-shadow: var(--shadow); }
        .highlight {
            background-color: #fff9c4;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            font-weight: 600;
        }
        header {
            background: var(--primary);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo span {
            color: var(--accent);
        }
        .desktop-nav ul {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
        }
        .desktop-nav a:hover {
            color: var(--accent);
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--accent);
            transition: var(--transition);
        }
        .desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: -100%;
            width: 80%;
            height: calc(100vh - 70px);
            background: var(--primary);
            padding: 2rem;
            transition: var(--transition);
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-nav.active {
            left: 0;
        }
        .mobile-nav ul {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .mobile-nav a {
            font-size: 1.2rem;
            font-weight: 600;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 1rem;
            display: block;
        }
        .overlay {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 998;
        }
        .overlay.active {
            display: block;
        }
        .breadcrumb {
            padding: 1rem 20px;
            background: #edf2f7;
            font-size: 0.9rem;
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb i {
            margin: 0 8px;
            color: var(--gray);
        }
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, #2d3748 100%);
            color: white;
            padding: 5rem 0;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1px);
            background-size: 30px 30px;
            animation: pulse 20s linear infinite;
        }
        @keyframes pulse {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }
        .search-section {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            margin-top: -3rem;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow);
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid var(--gray);
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            outline: none;
        }
        .search-form input:focus {
            border-color: var(--primary);
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 30px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--secondary);
        }
        .content-section {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            margin-top: 3rem;
        }
        @media (max-width: 992px) {
            .content-section {
                grid-template-columns: 1fr;
            }
        }
        article h2, article h3, article h4 {
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            color: var(--primary);
        }
        article h2 {
            font-size: 2rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.5rem;
        }
        article h3 {
            font-size: 1.5rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        article blockquote {
            border-left: 5px solid var(--secondary);
            padding-left: 2rem;
            margin: 2rem 0;
            font-style: italic;
            color: #555;
            background: #f9f9f9;
            padding: 1.5rem;
            border-radius: 0 10px 10px 0;
        }
        .feature-img {
            margin: 2rem 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        .feature-img img {
            width: 100%;
            transition: var(--transition);
        }
        .feature-img img:hover {
            transform: scale(1.02);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--secondary);
        }
        .stat-card i {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1rem;
        }
        .stat-card h4 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .sidebar-widget {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .rating-form .stars {
            display: flex;
            justify-content: center;
            gap: 5px;
            margin-bottom: 1rem;
        }
        .rating-form .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form .star.active,
        .rating-form .star:hover {
            color: #ffc107;
        }
        .rating-form textarea,
        .rating-form input[type="text"],
        .comment-form textarea,
        .comment-form input[type="text"] {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            border: 1px solid #ccc;
            border-radius: 5px;
            font-family: inherit;
            resize: vertical;
        }
        .comment-list {
            max-height: 400px;
            overflow-y: auto;
        }
        .comment-item {
            border-bottom: 1px solid #eee;
            padding: 1rem 0;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: bold;
            color: var(--primary);
        }
        .comment-date {
            font-size: 0.8rem;
            color: var(--gray);
        }
        .long-tail-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin: 3rem 0;
        }
        .web-link {
            background: white;
            padding: 1rem;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            transition: var(--transition);
        }
        .web-link:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-5px);
        }
        .web-link a {
            display: block;
            font-weight: 600;
        }
        footer {
            background: var(--primary);
            color: white;
            padding: 3rem 0 1.5rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }
        .footer-logo span {
            color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: var(--gray);
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .content-section { gap: 2rem; }
            .search-form { flex-direction: column; }
            .search-form input { border-radius: 50px; margin-bottom: 10px; }
            .search-form button { border-radius: 50px; padding: 15px; }
            .search-section { margin-top: -1rem; padding: 1.5rem; }
        }