* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1e3a8a;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --text-color: #1f2937;
            --light-bg: #f8fafc;
            --white: #ffffff;
            --gray-light: #e5e7eb;
            --shadow: 0 4px 6px -1px 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(--white);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #1e40af);
            color: var(--white);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .logo a {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--accent-color);
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        .nav-desktop a {
            color: var(--white);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-desktop a:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--white);
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            background-color: var(--primary-color);
            padding: 1rem;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            box-shadow: var(--shadow);
        }
        .nav-mobile.active {
            display: flex;
        }
        .nav-mobile a {
            color: var(--white);
            text-decoration: none;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: 1rem 0;
            background-color: var(--light-bg);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb span {
            color: var(--text-color);
        }
        .search-container {
            max-width: 600px;
            margin: 2rem auto;
            padding: 0 20px;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid var(--gray-light);
            border-radius: 4px;
            font-size: 1rem;
        }
        .search-form button {
            background-color: var(--primary-color);
            color: var(--white);
            border: none;
            padding: 0 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background-color: #1e40af;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            padding: 2rem 0;
        }
        @media (max-width: 768px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--white);
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        article h1 {
            color: var(--primary-color);
            font-size: 2.5rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            gap: 1rem;
            color: #6b7280;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--gray-light);
        }
        .featured-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        article h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        article h3 {
            color: var(--secondary-color);
            font-size: 1.4rem;
            margin: 1.5rem 0 1rem;
        }
        article p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .highlight-box {
            background-color: var(--light-bg);
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 4px 4px 0;
        }
        .internal-links {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .internal-links h3 {
            margin-top: 0;
        }
        .internal-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.75rem;
        }
        .internal-links a {
            color: var(--primary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem;
            transition: var(--transition);
        }
        .internal-links a:hover {
            background-color: rgba(30, 58, 138, 0.1);
            border-radius: 4px;
        }
        .stats-table {
            width: 100%;
            border-collapse: collapse;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .stats-table th, .stats-table td {
            padding: 1rem;
            text-align: left;
            border: 1px solid var(--gray-light);
        }
        .stats-table th {
            background-color: var(--primary-color);
            color: var(--white);
        }
        .stats-table tr:nth-child(even) {
            background-color: var(--light-bg);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        .sidebar-widget {
            background-color: var(--white);
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent-color);
        }
        .rating-widget {
            text-align: center;
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin: 1rem 0;
            font-size: 1.5rem;
        }
        .star-rating i {
            color: var(--gray-light);
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: var(--accent-color);
        }
        .rating-form,
        .comment-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .rating-form button,
        .comment-form button {
            background-color: var(--primary-color);
            color: var(--white);
            border: none;
            padding: 0.75rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background-color: #1e40af;
        }
        textarea, input {
            padding: 0.75rem;
            border: 1px solid var(--gray-light);
            border-radius: 4px;
            font-family: inherit;
        }
        .comments-section {
            margin-top: 3rem;
        }
        .comment {
            background-color: var(--light-bg);
            padding: 1rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
            color: #6b7280;
            font-size: 0.9rem;
        }
        footer {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 3rem 0 1rem;
            margin-top: 3rem;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            margin-bottom: 1rem;
            color: var(--accent-color);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links a {
            color: var(--white);
            text-decoration: none;
            display: block;
            padding: 0.25rem 0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 15px;
            }
            article h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .header-top {
                padding: 0.75rem 0;
            }
            .article-content {
                padding: 1.5rem;
            }
            .featured-image {
                height: 250px;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                padding: 0.75rem;
            }
        }
        @media (max-width: 480px) {
            article h1 {
                font-size: 1.8rem;
            }
            article h2 {
                font-size: 1.5rem;
            }
            .stats-table {
                font-size: 0.9rem;
            }
            .stats-table th, .stats-table td {
                padding: 0.5rem;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar-widget {
            animation: fadeIn 0.5s ease-out;
        }
        .interactive-element {
            cursor: pointer;
            transition: var(--transition);
        }
        .highlight {
            background-color: rgba(245, 158, 11, 0.1);
            padding: 2px 4px;
            border-radius: 2px;
            font-weight: 600;
        }
        .tooltip {
            position: relative;
            border-bottom: 1px dotted var(--primary-color);
        }
        .tooltip-text {
            visibility: hidden;
            width: 200px;
            background-color: var(--primary-color);
            color: var(--white);
            text-align: center;
            padding: 5px;
            border-radius: 4px;
            position: absolute;
            z-index: 1;
            bottom: 125%;
            left: 50%;
            transform: translateX(-50%);
            opacity: 0;
            transition: opacity 0.3s;
        }
        .tooltip:hover .tooltip-text {
            visibility: visible;
            opacity: 1;
        }