* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }
        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2.5rem;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
        }
        nav a:hover {
            color: #ffd700;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 1rem 0;
            margin-bottom: 2rem;
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb a {
            color: #667eea;
            text-decoration: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        .main-content {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.1);
        }
        .search-form {
            margin-bottom: 2rem;
        }
        .search-form input {
            width: 100%;
            padding: 12px;
            border: 2px solid #667eea;
            border-radius: 25px;
            font-size: 1rem;
        }
        .search-form button {
            width: 100%;
            padding: 12px;
            background: #667eea;
            color: white;
            border: none;
            border-radius: 25px;
            margin-top: 10px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-form button:hover {
            background: #5a6fd8;
        }
        .comment-section {
            margin: 3rem 0;
            padding: 2rem;
            background: #f8f9fa;
            border-radius: 10px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 10px;
            resize: vertical;
            min-height: 100px;
            margin-bottom: 1rem;
        }
        .rating-section {
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            gap: 5px;
            margin: 10px 0;
        }
        .star {
            color: #ddd;
            cursor: pointer;
            font-size: 1.5rem;
            transition: color 0.2s;
        }
        .star:hover,
        .star.active {
            color: #ffd700;
        }
        h1 {
            color: #333;
            margin-bottom: 1.5rem;
            font-size: 2.5rem;
            line-height: 1.2;
        }
        h2 {
            color: #667eea;
            margin: 2rem 0 1rem 0;
            font-size: 1.8rem;
        }
        h3 {
            color: #764ba2;
            margin: 1.5rem 0 1rem 0;
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, #a8edea 0%, #fed6e3 100%);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 5px solid #667eea;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .web-links {
            background: #2c3e50;
            padding: 3rem 0;
            color: white;
        }
        .web-links-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            background: #34495e;
            padding: 1rem;
            border-radius: 8px;
            transition: transform 0.3s;
        }
        .web-link:hover {
            transform: translateY(-5px);
        }
        .web-link a {
            color: #ecf0f1;
            text-decoration: none;
            display: block;
        }
        footer {
            background: #1a252f;
            color: white;
            text-align: center;
            padding: 2rem 0;
        }
        @media (max-width: 768px) {
            .container {
                grid-template-columns: 1fr;
            }
            nav ul {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #667eea;
                padding: 1rem;
            }
            nav ul.show {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .interactive-card {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            cursor: pointer;
        }
        .interactive-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }
        .text-center { text-align: center; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding: 2rem 0; }