* {
            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, #1e3c72 0%, #2a5298 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: 1.8rem;
            font-weight: bold;
        }
        .logo a {
            color: white;
            text-decoration: none;
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-links 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;
            font-size: 0.9rem;
        }
        .breadcrumb-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb a {
            color: #6c757d;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #495057;
        }
        .container {
            max-width: 1200px;
            margin: 2rem auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
        }
        .main-content {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 2px 20px rgba(0,0,0,0.1);
        }
        .sidebar {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 2px 20px rgba(0,0,0,0.1);
        }
        article {
            line-height: 1.8;
        }
        h1 {
            color: #1e3c72;
            font-size: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h2 {
            color: #2a5298;
            font-size: 1.8rem;
            margin: 2rem 0 1rem 0;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e9ecef;
        }
        h3 {
            color: #495057;
            font-size: 1.4rem;
            margin: 1.5rem 0 1rem 0;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight {
            background: #fff3cd;
            padding: 1.5rem;
            border-left: 4px solid #ffc107;
            margin: 1.5rem 0;
            border-radius: 5px;
        }
        .stats-box {
            background: #e7f3ff;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            border: 1px solid #b3d9ff;
        }
        .search-form {
            margin: 2rem 0;
            display: flex;
            gap: 0.5rem;
        }
        .search-input {
            flex: 1;
            padding: 0.75rem;
            border: 2px solid #e9ecef;
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-btn {
            background: #1e3c72;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-btn:hover {
            background: #2a5298;
        }
        .comment-section {
            margin: 3rem 0;
            padding: 2rem;
            background: #f8f9fa;
            border-radius: 10px;
        }
        .comment-form {
            display: grid;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-input, .form-textarea {
            padding: 0.75rem;
            border: 2px solid #e9ecef;
            border-radius: 5px;
            font-size: 1rem;
            font-family: inherit;
        }
        .form-textarea {
            min-height: 100px;
            resize: vertical;
        }
        .submit-btn {
            background: #28a745;
            color: white;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        .submit-btn:hover {
            background: #218838;
        }
        .rating-system {
            margin: 2rem 0;
            text-align: center;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .footer-links {
            background: #343a40;
            padding: 3rem 0 2rem 0;
        }
        .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: #495057;
            padding: 1rem;
            border-radius: 5px;
            text-align: center;
        }
        .web-link a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            color: #ffd700;
        }
        footer {
            background: #212529;
            color: white;
            text-align: center;
            padding: 2rem 0;
        }
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container {
                grid-template-columns: 1fr;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #1e3c72;
                flex-direction: column;
                padding: 1rem;
                text-align: center;
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        .interactive-box {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            text-align: center;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .interactive-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        .text-center {
            text-align: center;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.5rem;
        }