:root {
            --primary-color: #2c3e50;
            --secondary-color: #e74c3c;
            --accent-color: #3498db;
            --light-bg: #f8f9fa;
            --text-color: #333;
            --border-color: #ddd;
            --wiki-blue: #3366cc;
            --wiki-light-blue: #e6f2ff;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #fff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background-color: var(--light-bg);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--secondary-color);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: var(--primary-color);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        nav a {
            text-decoration: none;
            color: var(--primary-color);
            font-weight: 500;
            padding: 0.5rem;
            border-radius: 4px;
            transition: all 0.3s ease;
            min-height: 44px;
            min-width: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        nav a:hover, nav a:focus {
            background-color: var(--wiki-light-blue);
            color: var(--wiki-blue);
        }
        .hamburger {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--primary-color);
            min-height: 44px;
            min-width: 44px;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2rem;
            margin: 2rem 0;
        }
        article {
            background: #fff;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        aside {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1 {
            color: var(--primary-color);
            border-bottom: 2px solid var(--secondary-color);
            padding-bottom: 0.5rem;
            margin-bottom: 1.5rem;
            font-size: 2.5rem;
        }
        h2 {
            color: var(--primary-color);
            border-left: 4px solid var(--accent-color);
            padding-left: 1rem;
            margin: 2rem 0 1rem;
            font-size: 1.8rem;
        }
        h3 {
            color: var(--primary-color);
            margin: 1.5rem 0 0.8rem;
            font-size: 1.4rem;
        }
        h4 {
            color: #555;
            margin: 1.2rem 0 0.6rem;
            font-size: 1.1rem;
        }
        p {
            margin-bottom: 1rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: #555;
            background-color: var(--wiki-light-blue);
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 2rem;
        }
        ul, ol {
            margin-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: #fff;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        }
        th, td {
            border: 1px solid var(--border-color);
            padding: 0.8rem;
            text-align: left;
        }
        th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background-color: var(--light-bg);
        }
        figure {
            margin: 1.5rem 0;
            text-align: center;
        }
        figure img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
            transition: transform 0.3s ease;
        }
        figure img:hover {
            transform: scale(1.02);
        }
        figcaption {
            font-size: 0.9rem;
            color: #666;
            margin-top: 0.5rem;
            font-style: italic;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.8rem 1.5rem;
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            min-height: 44px;
            min-width: 44px;
            gap: 8px;
        }
        .btn:hover {
            background-color: #2980b9;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-secondary:hover {
            background-color: #c0392b;
        }
        .search-box {
            display: flex;
            margin: 1.5rem 0;
        }
        .search-box input {
            flex: 1;
            padding: 0.8rem;
            border: 2px solid var(--border-color);
            border-radius: 6px 0 0 6px;
            font-size: 1rem;
        }
        .search-box button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 6px 6px 0;
            cursor: pointer;
            min-width: 44px;
        }
        .rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star {
            color: #ffc107;
            font-size: 1.5rem;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .star:hover {
            transform: scale(1.2);
        }
        .social-share {
            display: flex;
            gap: 1rem;
            margin: 2rem 0;
            flex-wrap: wrap;
        }
        .social-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0.6rem 1.2rem;
            background-color: #f0f0f0;
            border-radius: 50px;
            text-decoration: none;
            color: var(--text-color);
            transition: all 0.3s ease;
            min-height: 44px;
        }
        .social-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        .facebook { color: #1877f2; }
        .twitter { color: #1da1f2; }
        .reddit { color: #ff4500; }
        .comment-section {
            background-color: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .comment-form textarea {
            width: 100%;
            padding: 1rem;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            margin-bottom: 1rem;
            font-family: inherit;
            min-height: 120px;
        }
        .comment {
            background: white;
            padding: 1rem;
            border-radius: 6px;
            margin-bottom: 1rem;
            border-left: 3px solid var(--accent-color);
        }
        .info-box {
            background-color: var(--wiki-light-blue);
            border: 1px solid var(--wiki-blue);
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 2rem;
        }
        .info-box h3 {
            margin-top: 0;
            color: var(--wiki-blue);
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 2rem 0;
            margin-top: 3rem;
            border-radius: 8px 8px 0 0;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        .friend-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .friend-link {
            color: #ddd;
            text-decoration: none;
            padding: 0.3rem 0;
            transition: color 0.3s;
        }
        .friend-link:hover {
            color: white;
            text-decoration: underline;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #ccc;
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--secondary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            font-size: 1.5rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 99;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: #c0392b;
            transform: translateY(-5px);
        }
        .highlight {
            background-color: #fffacd;
            padding: 0.2rem 0.4rem;
            border-radius: 3px;
        }
        .badge {
            display: inline-block;
            padding: 0.3rem 0.6rem;
            background-color: var(--secondary-color);
            color: white;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: bold;
            margin-right: 0.5rem;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #666;
            text-align: right;
            margin-bottom: 1rem;
            font-style: italic;
        }
        .author-credential {
            display: flex;
            align-items: center;
            gap: 1rem;
            background-color: var(--light-bg);
            padding: 1rem;
            border-radius: 6px;
            margin: 1.5rem 0;
        }
        .author-credential img {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            object-fit: cover;
        }
        @media (max-width: 768px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }
            nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
            }
            nav ul.active {
                display: flex;
            }
            .hamburger {
                display: block;
                position: absolute;
                right: 15px;
                top: 15px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .social-share {
                justify-content: center;
            }
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 45px;
                height: 45px;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 10px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box input {
                border-radius: 6px;
                margin-bottom: 10px;
            }
            .search-box button {
                border-radius: 6px;
                padding: 0.8rem;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }