* {
            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);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 2rem;
            font-weight: bold;
            text-decoration: none;
            color: white;
        }
        .logo:hover {
            color: #ffd700;
            transition: color 0.3s ease;
        }
        .nav {
            display: flex;
            gap: 2rem;
        }
        .nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background-color 0.3s ease;
        }
        .nav a:hover {
            background-color: rgba(255,255,255,0.2);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: white;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: #333;
            padding: 1rem;
            text-decoration: none;
            border-bottom: 1px solid #eee;
        }
        .mobile-nav a:hover {
            background-color: #f8f9fa;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #667eea;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background: white;
            padding: 2rem 0;
            margin: 2rem 0;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 1rem;
            border: 2px solid #667eea;
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-btn {
            background: #667eea;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s ease;
        }
        .search-btn:hover {
            background: #5a6fd8;
        }
        .main-content {
            background: white;
            padding: 3rem;
            border-radius: 10px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            margin: 2rem 0;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .article-title {
            font-size: 2.5rem;
            color: #333;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 2rem;
        }
        .content-section {
            margin-bottom: 3rem;
        }
        .section-title {
            font-size: 1.8rem;
            color: #667eea;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #667eea;
        }
        .content-text {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        .highlight {
            background: #fff3cd;
            padding: 1rem;
            border-left: 4px solid #ffc107;
            margin: 1.5rem 0;
            border-radius: 0 5px 5px 0;
        }
        .feature-image {
            width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 2rem 0;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .rating-system {
            display: flex;
            gap: 1rem;
            align-items: center;
            margin-bottom: 2rem;
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
        }
        .star {
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comment-form {
            display: grid;
            gap: 1rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .form-input,
        .form-textarea {
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        .form-input:focus,
        .form-textarea:focus {
            outline: none;
            border-color: #667eea;
        }
        .submit-btn {
            background: #667eea;
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s ease;
        }
        .submit-btn:hover {
            background: #5a6fd8;
        }
        .footer-links {
            background: #343a40;
            color: white;
            padding: 3rem 0;
        }
        .web-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .web-link {
            background: rgba(255,255,255,0.1);
            padding: 1rem;
            border-radius: 5px;
            transition: background-color 0.3s ease;
        }
        .web-link:hover {
            background: rgba(255,255,255,0.2);
        }
        .web-link a {
            color: #ffd700;
            text-decoration: none;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .footer {
            background: #212529;
            color: white;
            text-align: center;
            padding: 2rem 0;
        }
        @media (max-width: 768px) {
            .nav {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .header-content {
                flex-wrap: wrap;
            }
            .article-title {
                font-size: 2rem;
            }
            .main-content {
                padding: 2rem 1rem;
            }
            .search-form {
                flex-direction: column;
            }
            .rating-system {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 480px) {
            .article-title {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .web-links-grid {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-center {
            text-align: center;
        }
        .text-bold {
            font-weight: bold;
        }
        .text-highlight {
            color: #667eea;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }