:root {
            --primary-dark: #0a1929;
            --primary-light: #1a365d;
            --accent-gold: #d4af37;
            --accent-teal: #2dd4bf;
            --text-primary: #e2e8f0;
            --text-secondary: #94a3b8;
            --card-bg: #162b4d;
            --border-color: #2d4a7a;
            --hover-glow: rgba(45, 212, 191, 0.3);
            --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.5);
            --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.7);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            line-height: 1.8;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0f172a 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        .site-header {
            background-color: rgba(10, 25, 41, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 2rem;
        }
        .header-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-family: 'Georgia', serif;
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            text-decoration: none;
            letter-spacing: 1px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-teal));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.3s ease;
        }
        .logo a:hover {
            transform: scale(1.05);
        }
        .breadcrumb {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin: 0.5rem 0;
        }
        .breadcrumb a {
            color: var(--accent-teal);
            text-decoration: none;
        }
        .breadcrumb span {
            margin: 0 0.5rem;
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: var(--hover-glow);
            color: var(--accent-teal);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--accent-teal);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        .main-nav a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.5rem;
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
        }
        .search-form input {
            padding: 0.7rem 1.2rem;
            background: transparent;
            border: none;
            color: var(--text-primary);
            min-width: 250px;
        }
        .search-form button {
            background: var(--accent-teal);
            color: var(--primary-dark);
            border: none;
            padding: 0.7rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-form button:hover {
            background: var(--accent-gold);
        }
        .main-wrapper {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        article {
            background: rgba(22, 43, 77, 0.7);
            border-radius: 16px;
            padding: 3rem;
            box-shadow: var(--shadow-heavy);
            border: 1px solid var(--border-color);
        }
        .article-header {
            text-align: center;
            margin-bottom: 3rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid var(--accent-teal);
        }
        h1 {
            font-size: 3.2rem;
            margin-bottom: 1rem;
            color: var(--accent-gold);
            line-height: 1.2;
            text-shadow: 0 2px 10px rgba(212, 175, 55, 0.3);
        }
        .article-meta {
            color: var(--text-secondary);
            font-style: italic;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--accent-teal);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--text-primary);
            margin: 2.5rem 0 1rem;
        }
        p {
            margin-bottom: 1.8rem;
            text-align: justify;
            font-size: 1.1rem;
        }
        .lead-paragraph {
            font-size: 1.3rem;
            color: var(--accent-gold);
            font-weight: 600;
            line-height: 1.9;
            padding: 1.5rem;
            background: rgba(212, 175, 55, 0.1);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 8px 8px 0;
            margin: 2.5rem 0;
        }
        .key-term {
            font-weight: 700;
            color: var(--accent-teal);
            border-bottom: 1px dotted var(--accent-teal);
            cursor: help;
        }
        .highlight-box {
            background: linear-gradient(135deg, rgba(45, 212, 191, 0.1), rgba(22, 43, 77, 0.8));
            border: 1px solid var(--accent-teal);
            border-radius: 12px;
            padding: 2rem;
            margin: 2.5rem 0;
            box-shadow: var(--shadow-light);
        }
        .image-container {
            margin: 3rem 0;
            text-align: center;
        }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: var(--shadow-heavy);
            border: 2px solid var(--border-color);
            transition: transform 0.5s ease, box-shadow 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.02);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.9);
        }
        .image-caption {
            color: var(--text-secondary);
            font-style: italic;
            margin-top: 1rem;
            font-size: 0.95rem;
        }
        blockquote {
            border-left: 4px solid var(--accent-gold);
            padding-left: 2rem;
            margin: 2.5rem 0;
            color: var(--text-secondary);
            font-style: italic;
            font-size: 1.2rem;
        }
        .user-interaction {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 2rem;
            margin: 3rem 0;
            border: 1px solid var(--border-color);
        }
        .interaction-title {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--accent-teal);
        }
        .rating-widget {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
        }
        .star {
            font-size: 1.8rem;
            color: var(--text-secondary);
            cursor: pointer;
            transition: color 0.2s ease, transform 0.2s ease;
        }
        .star:hover,
        .star.active {
            color: var(--accent-gold);
            transform: scale(1.2);
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 1rem;
            margin-bottom: 1rem;
            background: rgba(10, 25, 41, 0.7);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            font-family: inherit;
        }
        .comment-form button {
            background: linear-gradient(135deg, var(--accent-teal), #0ea5e9);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .comment-form button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(45, 212, 191, 0.4);
        }
        aside {
            position: sticky;
            top: 120px;
            height: fit-content;
        }
        .sidebar-widget {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 1.8rem;
            margin-bottom: 2rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-light);
        }
        .widget-title {
            font-size: 1.3rem;
            color: var(--accent-gold);
            margin-bottom: 1.2rem;
            padding-bottom: 0.7rem;
            border-bottom: 1px solid var(--border-color);
        }
        .toc-list {
            list-style: none;
        }
        .toc-list li {
            margin-bottom: 0.8rem;
            padding-left: 1rem;
            position: relative;
        }
        .toc-list li::before {
            content: '▶';
            position: absolute;
            left: 0;
            color: var(--accent-teal);
            font-size: 0.8rem;
        }
        .toc-list a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color 0.3s ease;
            display: block;
            padding: 0.3rem 0;
        }
        .toc-list a:hover {
            color: var(--accent-teal);
            transform: translateX(5px);
            transition: all 0.3s ease;
        }
        .quick-stats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .stat-item {
            text-align: center;
            padding: 1rem;
            background: rgba(10, 25, 41, 0.5);
            border-radius: 8px;
        }
        .stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .longtail-links {
            background: rgba(10, 25, 41, 0.9);
            padding: 3rem 2rem;
            margin-top: 4rem;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .links-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
        }
        .web-link {
            padding: 1rem;
            background: rgba(22, 43, 77, 0.5);
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .web-link:hover {
            background: rgba(45, 212, 191, 0.15);
            transform: translateY(-5px);
        }
        .web-link a {
            color: var(--accent-teal);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        .site-footer {
            background-color: var(--primary-dark);
            padding: 3rem 2rem;
            text-align: center;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
        }
        .copyright {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
        }
        .copyright a {
            color: var(--accent-teal);
            text-decoration: none;
        }
        @media (max-width: 1100px) {
            .main-wrapper {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
                gap: 2rem;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                padding: 1rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .nav-container {
                order: 3;
                width: 100%;
                margin-top: 1rem;
                display: none;
                flex-direction: column;
                gap: 1rem;
            }
            .nav-container.active {
                display: flex;
            }
            .main-nav {
                flex-direction: column;
                width: 100%;
                gap: 0.5rem;
            }
            .hamburger {
                display: block;
            }
            .search-form input {
                min-width: auto;
                width: 100%;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 1.9rem;
            }
            article {
                padding: 2rem 1.5rem;
            }
            .main-wrapper {
                padding: 0 1rem;
            }
            .longtail-links {
                padding: 2rem 1rem;
            }
            .links-container {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            html {
                font-size: 14px;
            }
            h1 {
                font-size: 2rem;
            }
            .quick-stats {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in {
            animation: fadeInUp 0.8s ease forwards;
        }
        .section-delay-1 {
            animation-delay: 0.2s;
        }
        .section-delay-2 {
            animation-delay: 0.4s;
        }
        .text-center {
            text-align: center;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .emoji {
            font-size: 1.2em;
            margin: 0 0.2rem;
            vertical-align: middle;
        }