* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #ff6b00;
            --secondary-color: #1a237e;
            --accent-color: #ffd600;
            --text-color: #333;
            --light-bg: #f5f5f5;
            --dark-bg: #1a1a1a;
            --white: #ffffff;
            --shadow: 0 4px 6px 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(--secondary-color), var(--dark-bg));
            color: var(--white);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .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;
            color: var(--accent-color);
            text-decoration: none;
        }
        .logo:hover {
            color: var(--white);
            transition: var(--transition);
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .nav-menu a {
            color: var(--white);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
        }
        .nav-menu a:hover {
            color: var(--accent-color);
        }
        .hamburger {
            display: none;
            cursor: pointer;
            font-size: 1.5rem;
        }
        .breadcrumb {
            background-color: 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(--secondary-color);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .main-content {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
            margin: 2rem 0;
        }
        .article-content {
            background: var(--white);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: var(--white);
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        .search-form {
            margin-bottom: 2rem;
        }
        .search-form input {
            width: 100%;
            padding: 0.8rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .search-form button {
            width: 100%;
            padding: 0.8rem;
            background: var(--primary-color);
            color: var(--white);
            border: none;
            border-radius: 5px;
            margin-top: 0.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--secondary-color);
        }
        h1 {
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
            font-size: 2.5rem;
            line-height: 1.2;
        }
        h2 {
            color: var(--primary-color);
            margin: 2rem 0 1rem 0;
            font-size: 1.8rem;
            border-left: 4px solid var(--accent-color);
            padding-left: 1rem;
        }
        h3 {
            color: var(--secondary-color);
            margin: 1.5rem 0 1rem 0;
            font-size: 1.4rem;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .highlight {
            background-color: var(--accent-color);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-weight: bold;
        }
        .article-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem 0;
            box-shadow: var(--shadow);
        }
        .interactive-section {
            background: linear-gradient(135deg, var(--light-bg), var(--white));
            padding: 2rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 4px solid var(--primary-color);
        }
        .rating-system, .comment-system {
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #ddd;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: var(--accent-color);
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            margin-bottom: 1rem;
            resize: vertical;
            min-height: 100px;
        }
        .comment-form button {
            background: var(--primary-color);
            color: var(--white);
            padding: 0.8rem 2rem;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: var(--transition);
        }
        .comment-form button:hover {
            background: var(--secondary-color);
        }
        .web-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
            margin: 2rem 0;
        }
        .web-link {
            background: var(--white);
            padding: 1rem;
            border-radius: 5px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .web-link:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.15);
        }
        .web-link a {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 500;
        }
        .web-link a:hover {
            color: var(--primary-color);
        }
        footer {
            background: var(--dark-bg);
            color: var(--white);
            padding: 2rem 0;
            margin-top: 3rem;
        }
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
            text-align: center;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--secondary-color);
                flex-direction: column;
                padding: 1rem;
                text-align: center;
            }
            .nav-menu.active {
                display: flex;
            }
            .main-content {
                grid-template-columns: 1fr;
            }
            .web-links {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
        }
        @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; }
        .mb-2 { margin-bottom: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .py-2 { padding: 2rem 0; }