* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #e74c3c;
            --accent-color: #3498db;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --dark-bg: #2c3e50;
            --border-color: #ddd;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-bg);
        }
        header {
            background-color: var(--dark-bg);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: bold;
        }
        .logo a {
            color: white;
            text-decoration: none;
        }
        .search-form {
            display: flex;
            margin: 0 1rem;
        }
        .search-form input {
            padding: 0.5rem;
            border: none;
            border-radius: 4px 0 0 4px;
            width: 250px;
        }
        .search-form button {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 0.5rem 1rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
        }
        nav {
            background-color: var(--primary-color);
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .desktop-nav {
            display: flex;
            list-style: none;
        }
        .desktop-nav li {
            position: relative;
        }
        .desktop-nav a {
            color: white;
            text-decoration: none;
            padding: 1rem;
            display: block;
            transition: background-color 0.3s;
        }
        .desktop-nav a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            list-style: none;
            background-color: var(--primary-color);
            position: absolute;
            width: 100%;
            z-index: 1000;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 1rem;
            display: block;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .breadcrumb {
            max-width: 1200px;
            margin: 1rem auto;
            padding: 0 1rem;
        }
        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
        }
        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem;
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        .article-content {
            background-color: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .article-content h1 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-size: 2.2rem;
        }
        .article-content h2 {
            color: var(--primary-color);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .article-content h3 {
            color: var(--secondary-color);
            margin: 1.5rem 0 0.5rem;
        }
        .article-content p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        .article-content ul, .article-content ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .highlight {
            background-color: #fff9e6;
            padding: 1.5rem;
            border-left: 4px solid #ffc107;
            margin: 1.5rem 0;
            border-radius: 0 4px 4px 0;
        }
        .feature-image {
            width: 100%;
            margin: 2rem 0;
            border-radius: 8px;
            overflow: hidden;
        }
        .feature-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        .sidebar-widget {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        .sidebar-widget h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .comments-section {
            margin-top: 3rem;
        }
        .comment-form {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .comment-form h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        .form-group input, .form-group textarea {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-family: inherit;
        }
        .form-group textarea {
            min-height: 150px;
            resize: vertical;
        }
        .submit-btn {
            background-color: var(--accent-color);
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s;
        }
        .submit-btn:hover {
            background-color: #2980b9;
        }
        .rating-section {
            background-color: white;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            margin-bottom: 2rem;
        }
        .rating-section h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .star {
            color: #ddd;
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star:hover, .star.active {
            color: #ffc107;
        }
        .internal-links {
            max-width: 1200px;
            margin: 3rem auto 1rem;
            padding: 0 1rem;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }
        .web-link {
            background-color: white;
            padding: 1rem;
            border-radius: 4px;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        .web-link a {
            color: var(--accent-color);
            text-decoration: none;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background-color: var(--dark-bg);
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            text-align: center;
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .search-form {
                order: 3;
                width: 100%;
                margin: 1rem 0 0;
            }
            .search-form input {
                width: 100%;
            }
            .desktop-nav {
                display: none;
            }
            .mobile-nav-toggle {
                display: block;
            }
            main {
                grid-template-columns: 1fr;
            }
            .internal-links {
                grid-template-columns: 1fr;
            }
        }