:root {
            --primary-color: #1a237e;
            --secondary-color: #00bcd4;
            --accent-color: #ff4081;
            --dark-bg: #0d1117;
            --light-bg: #f8f9fa;
            --text-dark: #212529;
            --text-light: #f8f9fa;
            --border-color: #dee2e6;
            --wiki-blue: #3366cc;
            --wiki-lightblue: #eaf3ff;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            background-color: var(--light-bg);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }
        header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 5%;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary-color);
            text-decoration: none;
            letter-spacing: -1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a:hover {
            color: var(--secondary-color);
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: var(--radius);
            transition: var(--transition);
            white-space: nowrap;
        }
        nav a:hover, nav a.active {
            background-color: var(--wiki-lightblue);
            color: var(--wiki-blue);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
        }
        .search-container {
            max-width: 800px;
            margin: 2rem auto;
            padding: 0 1rem;
        }
        .search-box {
            display: flex;
            background: white;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 2px solid var(--border-color);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.2);
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 1rem 1.5rem;
            font-size: 1rem;
            outline: none;
        }
        .search-box button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0 2rem;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        .search-box button:hover {
            background: var(--secondary-color);
        }
        main {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem 5%;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .content-area {
            background: white;
            border-radius: var(--radius);
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        aside {
            background: white;
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1 {
            font-size: 2.8rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid var(--secondary-color);
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            color: var(--primary-color);
            margin: 2.5rem 0 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--primary-color);
            margin: 2rem 0 1rem;
        }
        h4 {
            font-size: 1.2rem;
            color: var(--text-dark);
            margin: 1.5rem 0 0.8rem;
        }
        p {
            margin-bottom: 1.2rem;
            text-align: justify;
        }
        a {
            color: var(--wiki-blue);
            text-decoration: none;
        }
        a:hover {
            text-decoration: underline;
            color: var(--secondary-color);
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--text-dark);
            background: var(--wiki-lightblue);
            padding: 1.5rem;
            border-radius: var(--radius);
            border-left: 4px solid var(--wiki-blue);
            margin-bottom: 2rem;
        }
        .infobox {
            background: var(--wiki-lightblue);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 1.5rem;
            margin-bottom: 2rem;
            float: right;
            width: 320px;
            margin-left: 2rem;
        }
        .infobox img {
            width: 100%;
            border-radius: var(--radius);
            margin-bottom: 1rem;
        }
        .infobox h3 {
            text-align: center;
            margin-top: 0;
        }
        .infobox table {
            width: 100%;
            border-collapse: collapse;
        }
        .infobox td {
            padding: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        .infobox tr:last-child td {
            border-bottom: none;
        }
        .infobox td:first-child {
            font-weight: 600;
            width: 40%;
        }
        section {
            margin-bottom: 3rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .card {
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .card-content {
            padding: 1.5rem;
        }
        ul, ol {
            padding-left: 2rem;
            margin-bottom: 1.5rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            background: white;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 0 0 1px var(--border-color);
        }
        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        th {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background-color: #f8f9fa;
        }
        tr:hover {
            background-color: #e9ecef;
        }
        form {
            background: white;
            padding: 2rem;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin: 2rem 0;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }
        input, select, textarea {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, select:focus, textarea:focus {
            outline: none;
            border-color: var(--secondary-color);
            box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.2);
        }
        button, .btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-block;
            text-align: center;
            min-height: 44px;
            min-width: 44px;
        }
        button:hover, .btn:hover {
            background: var(--secondary-color);
            transform: translateY(-2px);
        }
        .rating-container {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stars {
            display: flex;
            gap: 5px;
        }
        .star {
            color: #ddd;
            font-size: 1.8rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #ffc107;
        }
        .social-share {
            display: flex;
            gap: 1rem;
            margin: 2rem 0;
            flex-wrap: wrap;
        }
        .social-btn {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.5rem;
            border-radius: var(--radius);
            color: white;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            min-height: 44px;
        }
        .facebook { background: #3b5998; }
        .twitter { background: #1da1f2; }
        .reddit { background: #ff4500; }
        .share { background: var(--secondary-color); }
        .social-btn:hover {
            opacity: 0.9;
            transform: translateY(-2px);
            text-decoration: none;
            color: white;
        }
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: var(--primary-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: var(--shadow);
            z-index: 999;
            transition: var(--transition);
        }
        .back-to-top:hover {
            background: var(--secondary-color);
            transform: translateY(-5px);
        }
        footer {
            background: var(--dark-bg);
            color: var(--text-light);
            padding: 3rem 5%;
            margin-top: 4rem;
        }
        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 0.8rem;
        }
        .footer-links a {
            color: #adb5bd;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid #495057;
            color: #adb5bd;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .infobox {
                float: none;
                width: 100%;
                margin-left: 0;
            }
        }
        @media (max-width: 768px) {
            html {
                font-size: 15px;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .header-container {
                flex-wrap: wrap;
            }
            nav {
                width: 100%;
                order: 3;
                margin-top: 1rem;
                display: none;
            }
            nav.active {
                display: block;
            }
            nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            nav a {
                display: block;
                padding: 0.8rem;
                border-radius: var(--radius);
                background: #f8f9fa;
            }
            .hamburger {
                display: block;
            }
            .content-area {
                padding: 1.5rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .search-container {
                margin: 1rem auto;
            }
            .back-to-top {
                bottom: 1rem;
                right: 1rem;
            }
        }
        @media (max-width: 480px) {
            .social-share {
                flex-direction: column;
            }
            .social-btn {
                justify-content: center;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        .highlight {
            background-color: #fff3cd;
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .note {
            background: #e7f4ff;
            border-left: 4px solid #2196f3;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: var(--radius);
        }
        .warning {
            background: #fff8e1;
            border-left: 4px solid #ffc107;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: var(--radius);
        }
        .success {
            background: #e8f5e9;
            border-left: 4px solid #4caf50;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: var(--radius);
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .lazy-load {
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        .lazy-load.loaded {
            opacity: 1;
        }
        .tabs {
            display: flex;
            border-bottom: 2px solid var(--border-color);
            margin: 2rem 0;
            flex-wrap: wrap;
        }
        .tab {
            padding: 1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            border: none;
            background: none;
            border-bottom: 3px solid transparent;
            transition: var(--transition);
            min-height: 44px;
        }
        .tab:hover {
            background: var(--wiki-lightblue);
        }
        .tab.active {
            color: var(--wiki-blue);
            border-bottom: 3px solid var(--wiki-blue);
        }
        .tab-content {
            display: none;
            padding: 1.5rem 0;
        }
        .tab-content.active {
            display: block;
        }
        .author-box {
            background: var(--wiki-lightblue);
            padding: 1.5rem;
            border-radius: var(--radius);
            margin: 2rem 0;
            display: flex;
            align-items: center;
            gap: 1.5rem;
            border-left: 4px solid var(--wiki-blue);
        }
        .author-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--primary-color);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            flex-shrink: 0;
        }
        .author-info h4 {
            margin-top: 0;
        }
        .author-info p {
            margin-bottom: 0.5rem;
            color: #666;
        }