:root {
            --primary-color: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary-color: #10b981;
            --accent-color: #f59e0b;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f9fafb;
            --bg-white: #ffffff;
            --border-color: #e5e7eb;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--bg-white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo span {
            color: var(--accent-color);
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .desktop-nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            padding: 8px 12px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .desktop-nav a:hover {
            background-color: var(--primary-color);
            color: white;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-color);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--bg-white);
            padding: 20px;
            box-shadow: var(--shadow);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav ul {
            list-style: none;
        }
        .mobile-nav li {
            margin-bottom: 15px;
        }
        .mobile-nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            display: block;
            padding: 10px;
            border-radius: var(--radius);
        }
        .mobile-nav a:hover {
            background-color: var(--bg-light);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb span {
            color: var(--text-light);
        }
        .hero {
            background: linear-gradient(135deg, #2563eb, #10b981);
            color: white;
            padding: 60px 0;
            text-align: center;
            margin-bottom: 40px;
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
        }
        .search-box {
            max-width: 600px;
            margin: 40px auto;
            padding: 20px;
            background-color: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .search-box form {
            display: flex;
        }
        .search-input {
            flex-grow: 1;
            padding: 15px;
            border: 2px solid var(--primary-color);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-btn:hover {
            background-color: var(--primary-dark);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 40px 0;
        }
        .main-content {
            background-color: var(--bg-white);
            padding: 40px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        article h2 {
            color: var(--primary-dark);
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        article h3 {
            color: var(--text-dark);
            margin: 25px 0 10px;
        }
        article p {
            margin-bottom: 20px;
            line-height: 1.8;
        }
        article strong {
            color: var(--primary-dark);
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            margin: 30px auto;
            text-align: center;
        }
        .article-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-image figcaption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 10px;
        }
        .highlight-box {
            background-color: #eff6ff;
            border-left: 5px solid var(--primary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .widget {
            background-color: var(--bg-white);
            padding: 25px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .widget h3 {
            color: var(--primary-dark);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .stars {
            display: flex;
            gap: 5px;
            font-size: 1.5rem;
            color: #e5e7eb;
            cursor: pointer;
        }
        .stars .active {
            color: var(--accent-color);
        }
        .rating-form input, .rating-form textarea {
            padding: 12px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-family: inherit;
        }
        .rating-form button {
            background-color: var(--secondary-color);
            color: white;
            border: none;
            padding: 12px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-form button:hover {
            background-color: #0da271;
        }
        .comments-section {
            margin-top: 40px;
        }
        .comment {
            background-color: var(--bg-light);
            padding: 20px;
            border-radius: var(--radius);
            margin-bottom: 20px;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            margin: 50px 0;
        }
        .web-link {
            background-color: var(--bg-white);
            padding: 15px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }
        .web-link a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        footer {
            background-color: var(--text-dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        .footer-section h4 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--accent-color);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #d1d5db;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            margin-top: 30px;
            border-top: 1px solid #374151;
            color: #9ca3af;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .main-content {
                padding: 25px;
            }
            .search-box form {
                flex-direction: column;
            }
            .search-input {
                border-radius: var(--radius);
                margin-bottom: 10px;
            }
            .search-btn {
                border-radius: var(--radius);
                padding: 15px;
            }
        }