* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary-color: #1a237e;
            --secondary-color: #e53935;
            --accent-color: #ffab00;
            --text-dark: #212121;
            --text-light: #757575;
            --background-light: #f5f5f5;
            --white: #ffffff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            color: var(--text-dark);
            background-color: var(--background-light);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul {
            list-style: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--secondary-color);
        }
        .my-logo:hover {
            color: var(--secondary-color);
        }
        .desktop-nav {
            display: flex;
            gap: 30px;
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 8px 12px;
            border-radius: 4px;
        }
        .desktop-nav a:hover {
            background-color: var(--primary-color);
            color: var(--white);
        }
        .mobile-nav-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary-color);
            cursor: pointer;
        }
        @media (max-width: 768px) {
            .mobile-nav-toggle {
                display: block;
            }
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--white);
            padding: 20px;
            box-shadow: var(--shadow);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: 15px;
            border-bottom: 1px solid #eee;
            font-weight: 600;
        }
        .mobile-nav a:hover {
            background-color: var(--background-light);
            color: var(--primary-color);
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #f9f9f9;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--secondary-color);
            text-decoration: underline;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary-color), #283593);
            padding: 40px 0;
            color: var(--white);
            text-align: center;
        }
        .search-section h2 {
            margin-bottom: 20px;
            font-size: 2rem;
        }
        .search-form {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
        }
        .search-input {
            flex: 1;
            padding: 18px 25px;
            border: none;
            font-size: 1rem;
            outline: none;
        }
        .search-button {
            background-color: var(--accent-color);
            color: var(--text-dark);
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
        }
        .search-button:hover {
            background-color: #ffb300;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
        }
        .article-content {
            background-color: var(--white);
            padding: 40px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .article-header h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .meta-info {
            display: flex;
            gap: 20px;
            color: var(--text-light);
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
            font-size: 0.9rem;
        }
        .meta-info i {
            margin-right: 5px;
        }
        .featured-image {
            margin: 30px 0;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        }
        .featured-image figcaption {
            padding: 10px;
            background-color: #f9f9f9;
            font-style: italic;
            color: var(--text-light);
            font-size: 0.9rem;
            text-align: center;
        }
        .article-content h2 {
            font-size: 1.8rem;
            color: var(--primary-color);
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        .article-content h3 {
            font-size: 1.4rem;
            color: var(--text-dark);
            margin: 30px 0 15px;
        }
        .article-content h4 {
            font-size: 1.1rem;
            color: var(--secondary-color);
            margin: 20px 0 10px;
        }
        .article-content p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .article-content strong {
            color: var(--secondary-color);
            font-weight: 700;
        }
        .article-content em {
            background-color: #fff9c4;
            padding: 2px 5px;
            border-radius: 3px;
        }
        .article-content blockquote {
            border-left: 5px solid var(--accent-color);
            padding-left: 20px;
            margin: 30px 0;
            font-style: italic;
            color: var(--text-light);
            font-size: 1.1rem;
        }
        .highlight-box {
            background-color: #e3f2fd;
            border-left: 5px solid var(--primary-color);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box h4 {
            margin-top: 0;
            color: var(--primary-color);
        }
        .internal-links {
            background-color: #f0f7ff;
            padding: 20px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .internal-links h4 {
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
        }
        .internal-links li a {
            display: block;
            padding: 10px 15px;
            background-color: var(--white);
            border-radius: 5px;
            border: 1px solid #d1e9ff;
        }
        .internal-links li a:hover {
            background-color: var(--primary-color);
            color: var(--white);
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-widget {
            background-color: var(--white);
            padding: 25px;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        .user-rating {
            text-align: center;
        }
        .stars {
            font-size: 1.8rem;
            color: #ffc107;
            margin: 15px 0;
        }
        .rating-form input,
        .rating-form textarea,
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        .rating-form button,
        .comment-form button {
            width: 100%;
            padding: 14px;
            background-color: var(--primary-color);
            color: var(--white);
            border: none;
            border-radius: 5px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-form button:hover,
        .comment-form button:hover {
            background-color: var(--secondary-color);
        }
        footer {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 50px 0 20px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--accent-color);
        }
        .footer-section ul li {
            margin-bottom: 12px;
        }
        .footer-section a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background-color: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 5px;
            margin-bottom: 10px;
            text-align: center;
        }
        friend-link:hover {
            background-color: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 768px) {
            .article-content {
                padding: 25px;
            }
            .article-header h1 {
                font-size: 2rem;
            }
            .search-form {
                flex-direction: column;
                border-radius: 10px;
            }
            .search-input,
            .search-button {
                width: 100%;
                border-radius: 0;
                padding: 18px;
            }
        }