* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-dark: #0a2e36;
            --primary-medium: #1a5a6c;
            --primary-light: #2a8ca0;
            --accent-gold: #d4af37;
            --accent-copper: #b87333;
            --text-light: #f5f5f5;
            --text-gray: #cccccc;
            --text-dark: #333333;
            --bg-dark: #121212;
            --bg-card: #1e1e1e;
            --border-color: #2a3a40;
            --shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-light);
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0d1b24 100%);
            min-height: 100vh;
            padding-bottom: 40px;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .text-center { text-align: center; }
        .text-gold { color: var(--accent-gold); }
        .text-copper { color: var(--accent-copper); }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .mb-3 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 2rem; }
        .p-2 { padding: 2rem; }
        .rounded { border-radius: 8px; }
        .shadow { box-shadow: var(--shadow); }
        header {
            background-color: rgba(10, 46, 54, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--accent-copper);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-family: 'Times New Roman', serif;
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--accent-gold);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            letter-spacing: 1px;
        }
        .logo a:hover {
            text-decoration: none;
            color: #ffd700;
        }
        .desktop-nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }
        .desktop-nav a {
            font-weight: 600;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .desktop-nav a:hover {
            border-bottom-color: var(--accent-gold);
            text-decoration: none;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-nav {
            display: none;
            background-color: var(--primary-dark);
            padding: 20px;
            border-top: 1px solid var(--border-color);
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .mobile-nav a {
            display: block;
            padding: 10px;
            border-left: 3px solid transparent;
        }
        .mobile-nav a:hover {
            border-left-color: var(--accent-gold);
            background-color: rgba(42, 140, 160, 0.1);
        }
        .breadcrumb {
            padding: 15px 20px;
            background-color: rgba(26, 90, 108, 0.3);
            font-size: 0.9rem;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb a {
            color: var(--text-gray);
        }
        .breadcrumb span {
            color: var(--text-light);
            margin: 0 8px;
        }
        main {
            padding: 30px 20px;
        }
        .article-header {
            margin-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 25px;
        }
        .article-header h1 {
            font-size: 2.8rem;
            line-height: 1.2;
            margin-bottom: 15px;
            color: var(--text-light);
            text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-gray);
            font-size: 0.95rem;
        }
        .meta-info i {
            margin-right: 5px;
        }
        .content-section {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            margin-bottom: 30px;
            padding: 30px;
            border-radius: 10px;
        }
        h2 {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-medium);
        }
        h3 {
            font-size: 1.6rem;
            color: var(--accent-copper);
            margin: 25px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--primary-light);
            margin: 20px 0 10px;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
            hyphens: auto;
        }
        .highlight {
            background-color: rgba(212, 175, 55, 0.1);
            border-left: 4px solid var(--accent-gold);
            padding: 20px;
            margin: 25px 0;
            font-style: italic;
        }
        .feature-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }
        .feature-card {
            background: linear-gradient(145deg, #252525, #1a1a1a);
            padding: 25px;
            border-radius: 10px;
            border-top: 4px solid var(--primary-light);
        }
        .feature-card h4 {
            margin-top: 0;
        }
        .article-image {
            margin: 30px auto;
            text-align: center;
        }
        .article-image img {
            border-radius: 8px;
            border: 2px solid var(--border-color);
            max-height: 500px;
            object-fit: cover;
        }
        .img-caption {
            font-style: italic;
            color: var(--text-gray);
            margin-top: 10px;
            font-size: 0.9rem;
        }
        .interactive-module {
            background: linear-gradient(to right, var(--primary-dark), var(--primary-medium));
            padding: 25px;
            border-radius: 10px;
            margin: 40px 0;
        }
        .interactive-module h3 {
            color: var(--text-light);
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 12px 15px;
            background-color: rgba(255,255,255,0.1);
            border: 1px solid var(--border-color);
            border-radius: 6px;
            color: var(--text-light);
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-gold);
            background-color: rgba(255,255,255,0.15);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(to bottom, var(--accent-copper), #9a5c27);
            color: white;
            padding: 12px 28px;
            border: none;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            background: linear-gradient(to bottom, #c9843d, #a86a2a);
            transform: translateY(-2px);
            text-decoration: none;
            color: white;
        }
        .star-rating {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
            margin: 0;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--accent-gold);
        }
        .search-bar {
            display: flex;
            margin: 30px 0;
        }
        .search-bar input {
            flex-grow: 1;
            border-top-right-radius: 0;
            border-bottom-right-radius: 0;
            border-right: none;
        }
        .search-bar .btn {
            border-top-left-radius: 0;
            border-bottom-left-radius: 0;
            padding: 12px 20px;
        }
        footer {
            margin-top: 60px;
            padding-top: 40px;
            border-top: 2px solid var(--border-color);
            color: var(--text-gray);
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        .footer-section h4 {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-section ul {
            list-style: none;
        }
        .footer-section li {
            margin-bottom: 10px;
        }
        .friend-links {
            background-color: rgba(42, 140, 160, 0.1);
            padding: 20px;
            border-radius: 8px;
            margin: 30px 0;
        }
        .friend-links h5 {
            color: var(--text-light);
            margin-bottom: 15px;
        }
        .friend-links a {
            display: inline-block;
            margin-right: 15px;
            margin-bottom: 10px;
            padding: 5px 10px;
            background-color: rgba(255,255,255,0.05);
            border-radius: 4px;
        }
        .copyright {
            text-align: center;
            padding: 20px;
            font-size: 0.9rem;
            color: #888;
            border-top: 1px solid var(--border-color);
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .feature-box { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .header-container { padding: 12px 15px; }
            .desktop-nav { display: none; }
            .mobile-toggle { display: block; }
            .content-section { padding: 20px; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            .article-header h1 { font-size: 2.2rem; }
            .footer-links { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .container { padding: 0 15px; }
            .meta-info { flex-direction: column; gap: 10px; }
            .star-rating { gap: 5px; }
            .star-rating label { font-size: 1.5rem; }
        }