* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #4CAF50;
            --secondary-color: #2196F3;
            --accent-color: #FF9800;
            --text-color: #333;
            --light-bg: #f8f9fa;
            --border-color: #ddd;
            --wiki-blue: #3366cc;
            --wiki-light-blue: #eaf3ff;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #fff;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color), #2E7D32);
            color: white;
            padding: 1.5rem 0;
            border-radius: 0 0 10px 10px;
            margin-bottom: 2rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .my-logo {
            font-size: 2.5rem;
            font-weight: bold;
            text-align: center;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo a {
            color: white;
            text-decoration: none;
            display: inline-block;
            padding: 10px 20px;
            background: rgba(255,255,255,0.1);
            border-radius: 8px;
            transition: all 0.3s ease;
        }
        .my-logo a:hover {
            background: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }
        nav {
            background-color: var(--wiki-light-blue);
            border-radius: 8px;
            padding: 1rem;
            margin: 1rem auto;
            border: 1px solid var(--border-color);
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .desktop-nav {
            display: flex;
            gap: 1.5rem;
        }
        .desktop-nav a {
            color: var(--wiki-blue);
            text-decoration: none;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 4px;
            transition: all 0.3s ease;
            min-height: 44px;
            display: flex;
            align-items: center;
        }
        .desktop-nav a:hover {
            background-color: var(--wiki-blue);
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: var(--wiki-blue);
            cursor: pointer;
            padding: 10px;
            min-width: 44px;
            min-height: 44px;
        }
        .content-container {
            display: grid;
            grid-template-columns: 3fr 1fr;
            gap: 2rem;
            margin-bottom: 3rem;
        }
        main {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        aside {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }
        h1 {
            color: var(--wiki-blue);
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid var(--primary-color);
        }
        h2 {
            color: var(--text-color);
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding: 0.5rem 0;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            color: var(--text-color);
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }
        h4 {
            color: #555;
            font-size: 1.2rem;
            margin: 1.2rem 0 0.6rem;
        }
        p {
            margin-bottom: 1.2rem;
            line-height: 1.7;
        }
        ul, ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }
        th, td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        th {
            background-color: var(--wiki-light-blue);
            font-weight: 600;
        }
        tr:hover {
            background-color: #f9f9f9;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 8px;
            margin: 1.5rem auto;
            display: block;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #666;
            margin-top: 0.5rem;
            margin-bottom: 1.5rem;
        }
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background-color: var(--primary-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;
            text-align: center;
        }
        .btn:hover {
            background-color: #3d8b40;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        .btn-secondary {
            background-color: var(--secondary-color);
        }
        .btn-secondary:hover {
            background-color: #0b7dda;
        }
        form {
            background: var(--light-bg);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 1.5rem 0;
            border: 1px solid var(--border-color);
        }
        input, textarea, select {
            width: 100%;
            padding: 12px;
            margin-bottom: 1rem;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-family: inherit;
            font-size: 1rem;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
        }
        .social-share {
            display: flex;
            gap: 1rem;
            margin: 2rem 0;
            flex-wrap: wrap;
        }
        .social-btn {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 10px 20px;
            background: #f0f2f5;
            border-radius: 6px;
            text-decoration: none;
            color: #333;
            transition: all 0.3s ease;
            min-height: 44px;
            min-width: 44px;
        }
        .social-btn:hover {
            background: #e4e6e9;
            transform: translateY(-2px);
        }
        .social-btn.facebook { color: #1877F2; }
        .social-btn.twitter { color: #1DA1F2; }
        .social-btn.pinterest { color: #E60023; }
        #backToTop {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: none;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            font-size: 1.5rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
            z-index: 1000;
            border: none;
        }
        footer {
            background: #2c3e50;
            color: white;
            padding: 2.5rem 0;
            margin-top: 3rem;
            border-radius: 10px 10px 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: 1.3rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: white;
            text-decoration: underline;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
            padding: 1rem;
            background: rgba(255,255,255,0.1);
            border-radius: 6px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #bbb;
        }
        .infobox {
            background: var(--wiki-light-blue);
            border: 1px solid var(--wiki-blue);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 1.5rem 0;
            float: right;
            width: 300px;
            margin-left: 1.5rem;
        }
        .infobox h3 {
            background: var(--wiki-blue);
            color: white;
            margin: -1.5rem -1.5rem 1rem -1.5rem;
            padding: 0.8rem 1.5rem;
            border-radius: 8px 8px 0 0;
        }
        .update-log {
            background: #fff8e1;
            border-left: 4px solid var(--accent-color);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        @media (max-width: 768px) {
            .content-container {
                grid-template-columns: 1fr;
            }
            .desktop-nav {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: white;
                padding: 1rem;
                box-shadow: 0 4px 12px rgba(0,0,0,0.1);
                border-radius: 0 0 8px 8px;
                z-index: 100;
            }
            .desktop-nav.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .infobox {
                float: none;
                width: 100%;
                margin: 1.5rem 0;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            main, aside {
                padding: 1.5rem 1rem;
            }
            .my-logo {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 10px;
            }
            .btn {
                padding: 10px 20px;
                width: 100%;
                margin-bottom: 0.5rem;
            }
            .social-share {
                justify-content: center;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        a:focus, button:focus, input:focus, textarea:focus {
            outline: 3px solid var(--primary-color);
            outline-offset: 2px;
        }
        @media print {
            .no-print {
                display: none;
            }
            body {
                max-width: 100%;
                padding: 0;
            }
            a {
                color: #000;
                text-decoration: none;
            }
        }