* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a5276;
            --secondary-color: #e74c3c;
            --accent-color: #f39c12;
            --text-color: #2c3e50;
            --light-bg: #f8f9fa;
            --white: #ffffff;
            --shadow: 0 2px 10px rgba(0,0,0,0.1);
            --transition: all 0.3s ease;
        }
        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: linear-gradient(135deg, var(--primary-color), #2980b9);
            color: var(--white);
            padding: 1rem 0;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .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;
            text-decoration: none;
            color: var(--white);
        }
        .logo:hover {
            color: var(--accent-color);
            transition: var(--transition);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
        }
        nav a:hover {
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: var(--white);
            padding: 1rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            gap: 0.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem 2rem;
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding: 2rem 0;
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        .article-meta {
            color: #666;
            font-size: 0.9rem;
        }
        .search-section {
            background: var(--white);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
            text-align: center;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            gap: 1rem;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-btn {
            background: var(--primary-color);
            color: var(--white);
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-btn:hover {
            background: var(--secondary-color);
        }
        .content-section {
            background: var(--white);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .content-section h2 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 0.5rem;
        }
        .content-section h3 {
            color: var(--secondary-color);
            margin: 1.5rem 0 1rem;
            font-size: 1.4rem;
        }
        .content-section p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, var(--accent-color) 0%, var(--accent-color) 100%);
            background-repeat: no-repeat;
            background-size: 100% 0.4em;
            background-position: 0 88%;
            font-weight: bold;
        }
        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--primary-color);
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }
        .feature-card h4 {
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        .image-section {
            text-align: center;
            margin: 2rem 0;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .interactive-section {
            background: linear-gradient(135deg, var(--primary-color), #2980b9);
            color: var(--white);
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .rating-system {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 1rem 0;
        }
        .rating-btn {
            background: var(--white);
            color: var(--primary-color);
            border: none;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-btn:hover {
            background: var(--accent-color);
            color: var(--white);
        }
        .comment-section {
            background: var(--white);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .comment-form {
            display: grid;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .form-group {
            display: flex;
            flex-direction: column;
        }
        .form-input {
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .submit-btn {
            background: var(--primary-color);
            color: var(--white);
            border: none;
            padding: 1rem;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }
        .submit-btn:hover {
            background: var(--secondary-color);
        }
        .footer-links {
            background: var(--white);
            padding: 2rem;
            margin: 2rem 0;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .web-link {
            margin-bottom: 1rem;
            padding: 1rem;
            background: var(--light-bg);
            border-radius: 5px;
            transition: var(--transition);
        }
        .web-link:hover {
            background: #e8f4fc;
            transform: translateX(5px);
        }
        .web-link a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            color: var(--secondary-color);
        }
        footer {
            background: var(--primary-color);
            color: var(--white);
            text-align: center;
            padding: 2rem 1rem;
            margin-top: 3rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
        }
        .copyright {
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255,255,255,0.3);
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav ul {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary-color);
                flex-direction: column;
                padding: 1rem;
                text-align: center;
            }
            nav ul.show {
                display: flex;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .search-form {
                flex-direction: column;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .rating-system {
                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;
        }