* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
            --text-color: #333;
            --gray-color: #95a5a6;
            --success-color: #27ae60;
            --warning-color: #f39c12;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #f8f9fa;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary-color);
        }
        .desktop-nav {
            display: flex;
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--secondary-color);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary-color);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav .nav-link {
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background-color: var(--light-color);
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            align-items: center;
        }
        .breadcrumb-links a {
            color: var(--secondary-color);
            text-decoration: none;
        }
        .breadcrumb-links a:hover {
            text-decoration: underline;
        }
        .breadcrumb-separator {
            color: var(--gray-color);
        }
        main {
            padding: 2rem 0;
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: white;
            border-radius: 8px;
            padding: 2rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background-color: white;
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1, h2, h3, h4 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.5rem;
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2rem;
            color: var(--dark-color);
        }
        h3 {
            font-size: 1.4rem;
            color: var(--secondary-color);
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--dark-color);
            margin-bottom: 2rem;
        }
        .highlight {
            background-color: rgba(52, 152, 219, 0.1);
            border-left: 4px solid var(--secondary-color);
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .exclusive {
            background-color: rgba(231, 76, 60, 0.1);
            border: 2px dashed var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 8px;
        }
        .exclusive h3 {
            color: var(--accent-color);
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray-color);
            margin-top: -0.5rem;
            margin-bottom: 1.5rem;
        }
        .search-section {
            background: linear-gradient(135deg, var(--secondary-color), #2980b9);
            color: white;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 1.5rem auto 0;
        }
        .search-input {
            flex-grow: 1;
            padding: 0.8rem 1rem;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-button:hover {
            background-color: #1a252f;
        }
        .rating-section, .comments-section {
            margin: 3rem 0;
            padding: 2rem;
            background-color: white;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: var(--gray-color);
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--warning-color);
        }
        .rating-form, .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-input, .form-textarea {
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .submit-button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            align-self: flex-start;
        }
        .submit-button:hover {
            background-color: #2980b9;
        }
        .internal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .internal-link {
            background-color: rgba(52, 152, 219, 0.1);
            color: var(--secondary-color);
            text-decoration: none;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            transition: var(--transition);
            border: 1px solid rgba(52, 152, 219, 0.3);
        }
        .internal-link:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-2px);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .web-link {
            margin-bottom: 1rem;
        }
        .web-link a {
            color: var(--light-color);
            text-decoration: none;
            transition: var(--transition);
        }
        .web-link a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray-color);
            font-size: 0.9rem;
        }
        .text-bold {
            font-weight: 700;
        }
        .text-italic {
            font-style: italic;
        }
        .text-center {
            text-align: center;
        }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mt-3 { margin-top: 3rem; }
        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
            h3 { font-size: 1.2rem; }
            .article-content, .sidebar, .rating-section, .comments-section {
                padding: 1.5rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-input, .search-button {
                width: 100%;
                border-radius: 4px;
                margin-bottom: 0.5rem;
            }
            .footer-links {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.5s ease-out;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .comparison-table th, .comparison-table td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }
        .comparison-table th {
            background-color: var(--primary-color);
            color: white;
        }
        .comparison-table tr:hover {
            background-color: rgba(52, 152, 219, 0.05);
        }