* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        :root {
            --primary: #2a4365;
            --secondary: #d69e2e;
            --accent: #e53e3e;
            --light: #f7fafc;
            --dark: #1a202c;
            --gray: #718096;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: 60px 0;
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        nav.desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        nav.desktop-nav a {
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        nav.desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: var(--transition);
        }
        nav.desktop-nav a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary);
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background: white;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            box-shadow: var(--shadow);
            padding: 20px;
            flex-direction: column;
            gap: 15px;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            font-weight: 600;
            padding: 10px;
            border-bottom: 1px solid #eee;
        }
        .breadcrumb {
            background: #edf2f7;
            padding: 15px 20px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 8px;
            color: #a0aec0;
        }
        main {
            flex: 1;
            background: white;
            margin: 20px auto;
            border-radius: 12px;
            box-shadow: var(--shadow);
            overflow: hidden;
        }
        .article-header {
            background: linear-gradient(135deg, var(--primary), #4c6c9c);
            color: white;
            padding: 40px 20px;
            text-align: center;
            margin-bottom: 40px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            font-size: 0.95rem;
            opacity: 0.9;
            flex-wrap: wrap;
        }
        .content-area {
            padding: 0 40px 40px;
        }
        h2 {
            color: var(--primary);
            font-size: 2rem;
            margin: 50px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid var(--secondary);
        }
        h3 {
            color: #2d3748;
            font-size: 1.6rem;
            margin: 35px 0 15px;
        }
        h4 {
            color: #4a5568;
            font-size: 1.3rem;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 1.5em;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #fff9e6;
            border-left: 5px solid var(--secondary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .featured-img {
            width: 80%;
            margin: 30px auto;
            box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        }
        .featured-img figcaption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 1.5em;
        }
        li {
            margin-bottom: 0.7em;
        }
        .related-links {
            background: #f1f8ff;
            padding: 20px;
            border-radius: 10px;
            margin: 30px 0;
        }
        .related-links h4 {
            margin-top: 0;
            color: var(--primary);
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 10px;
            list-style: none;
            margin-left: 0;
        }
        .related-links li a {
            display: block;
            padding: 10px 15px;
            background: white;
            border-radius: 6px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .related-links li a:hover {
            background: var(--primary);
            color: white;
        }
        .interactive-box {
            background: #f8f9fa;
            border: 2px dashed #cbd5e0;
            border-radius: 12px;
            padding: 30px;
            margin: 40px 0;
            text-align: center;
        }
        .search-box, .comment-box, .rating-box {
            margin-bottom: 30px;
        }
        .interactive-box h3 {
            color: var(--primary);
            margin-top: 0;
        }
        .search-form, .comment-form, .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
            max-width: 500px;
            margin: 0 auto;
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 1px solid #cbd5e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(42, 67, 101, 0.1);
        }
        button, .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        button:hover, .btn:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 2rem;
            margin: 15px 0;
            color: #e2e8f0;
            cursor: pointer;
        }
        .stars i.active {
            color: #f6ad55;
        }
        footer {
            background: var(--dark);
            color: #cbd5e0;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 15px;
        }
        .footer-links h4, friend-link h4 {
            color: white;
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-links ul, friend-link ul {
            list-style: none;
            margin-left: 0;
        }
        .footer-links li, friend-link li {
            margin-bottom: 10px;
        }
        .footer-links a, friend-link a {
            color: #a0aec0;
        }
        .footer-links a:hover, friend-link a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: #2d3748;
            padding: 25px;
            border-radius: 10px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #4a5568;
            font-size: 0.9rem;
            color: #a0aec0;
        }
        @media (max-width: 992px) {
            .content-area { padding: 0 25px 30px; }
            .article-header h1 { font-size: 2.3rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .featured-img { width: 95%; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .hamburger { display: block; }
            .article-header h1 { font-size: 2rem; }
            .article-meta { flex-direction: column; gap: 10px; }
            h2 { font-size: 1.7rem; }
            .content-area { padding: 0 20px 25px; }
            .interactive-box { padding: 20px; }
            .related-links ul { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: 1fr; text-align: center; }
        }
        @media (max-width: 480px) {
            .article-header { padding: 30px 15px; }
            .article-header h1 { font-size: 1.8rem; }
            .content-area { padding: 0 15px 20px; }
            .search-form, .comment-form, .rating-form { max-width: 100%; }
        }