        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1a365d;
            --secondary-color: #2d3748;
            --accent-color: #e53e3e;
            --accent-hover: #c53030;
            --text-primary: #2d3748;
            --text-secondary: #4a5568;
            --text-light: #718096;
            --bg-primary: #ffffff;
            --bg-secondary: #f7fafc;
            --bg-tertiary: #edf2f7;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
            --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
            --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --transition: all 0.3s ease;
            --max-width: 1200px;
            --header-height: 70px;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            overflow-x: hidden;
        }
        header {
            background-color: var(--primary-color);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-md);
        }
        .header-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 1px;
            transition: var(--transition);
        }
        .my-logo:hover {
            color: var(--accent-color);
            transform: scale(1.02);
        }
        .my-logo span {
            color: var(--accent-color);
        }
        .nav-desktop {
            display: flex;
            gap: 30px;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            padding: 8px 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--accent-color);
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover {
            color: var(--accent-color);
        }
        .nav-desktop a:hover::after {
            width: 100%;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 10px;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background-color: var(--primary-color);
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            padding: 20px;
            box-shadow: var(--shadow-lg);
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 15px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            font-weight: 600;
            transition: var(--transition);
        }
        .mobile-nav a:hover {
            color: var(--accent-color);
            padding-left: 10px;
        }
        .breadcrumb {
            background-color: var(--bg-secondary);
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent-color);
        }
        .breadcrumb .separator {
            color: var(--text-light);
            font-size: 0.8rem;
        }
        .breadcrumb .current {
            color: var(--accent-color);
            font-weight: 600;
        }
        main {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 30px 20px;
        }
        article {
            background-color: var(--bg-primary);
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .hero-section {
            text-align: center;
            padding: 40px 20px;
            background: linear-gradient(135deg, var(--primary-color), #2d3748);
            color: white;
            border-radius: var(--radius-lg);
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.05)"/></svg>');
            background-size: cover;
        }
        .hero-section h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            line-height: 1.2;
            position: relative;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        .hero-section .subtitle {
            font-size: 1.3rem;
            max-width: 800px;
            margin: 0 auto 30px;
            opacity: 0.9;
            position: relative;
        }
        .meta-info {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            margin-top: 30px;
            position: relative;
        }
        .meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
        }
        section {
            margin-bottom: 60px;
            padding: 30px;
            background-color: var(--bg-secondary);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        section:hover {
            box-shadow: var(--shadow-md);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--accent-color);
            position: relative;
        }
        h2::after {
            content: '⚔️';
            position: absolute;
            right: 0;
            bottom: -5px;
            font-size: 1.5rem;
        }
        h3 {
            font-size: 1.8rem;
            color: var(--secondary-color);
            margin: 35px 0 20px;
            padding-left: 15px;
            border-left: 4px solid var(--accent-color);
        }
        h4 {
            font-size: 1.4rem;
            color: var(--text-primary);
            margin: 25px 0 15px;
            position: relative;
            padding-left: 10px;
        }
        h4::before {
            content: '▸';
            position: absolute;
            left: -10px;
            color: var(--accent-color);
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }
        .highlight {
            background-color: rgba(229, 62, 62, 0.1);
            border-left: 4px solid var(--accent-color);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .highlight strong {
            color: var(--accent-color);
            font-weight: 700;
        }
        blockquote {
            border-left: 5px solid var(--primary-color);
            padding-left: 25px;
            margin: 30px 0;
            font-style: italic;
            color: var(--text-secondary);
            background-color: rgba(26, 54, 93, 0.05);
            padding: 25px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
        }
        .content-image {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
            margin: 30px auto;
            display: block;
            box-shadow: var(--shadow-lg);
            transition: var(--transition);
        }
        .content-image:hover {
            transform: scale(1.01);
            box-shadow: var(--shadow-lg);
        }
        .img-container {
            position: relative;
            margin: 40px 0;
            text-align: center;
        }
        .img-caption {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-top: 10px;
            font-style: italic;
        }
        .content-link {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dotted var(--accent-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--accent-hover);
            border-bottom-style: solid;
        }
        ul, ol {
            margin: 20px 0;
            padding-left: 30px;
        }
        li {
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }
        @media (max-width: 768px) {
            .interactive-section {
                grid-template-columns: 1fr;
            }
        }
        .search-box, .comment-form, .rating-form {
            background-color: var(--bg-primary);
            padding: 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .search-box h3, .comment-form h3, .rating-form h3 {
            margin-top: 0;
            border-left: none;
            padding-left: 0;
        }
        .search-box h3::before, .comment-form h3::before, .rating-form h3::before {
            content: '🔍';
            margin-right: 10px;
        }
        .comment-form h3::before {
            content: '💬';
        }
        .rating-form h3::before {
            content: '⭐';
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: var(--text-primary);
        }
        input, textarea, select {
            padding: 12px 15px;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-md);
            font-family: inherit;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
        }
        textarea {
            min-height: 120px;
            resize: vertical;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            margin: 10px 0;
        }
        .star {
            cursor: pointer;
            color: #e2e8f0;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #f6ad55;
        }
        .btn {
            padding: 14px 28px;
            background-color: var(--accent-color);
            color: white;
            border: none;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        .btn:hover {
            background-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary {
            background-color: var(--primary-color);
        }
        .btn-secondary:hover {
            background-color: #2d3748;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .stat-card {
            background-color: var(--bg-primary);
            padding: 25px;
            border-radius: var(--radius-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border-top: 4px solid var(--accent-color);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-color);
            margin-bottom: 10px;
        }
        .stat-label {
            font-size: 1rem;
            color: var(--text-secondary);
            font-weight: 600;
        }
        .related-links {
            background-color: var(--bg-tertiary);
            padding: 30px;
            border-radius: var(--radius-lg);
            margin: 50px 0;
        }
        .related-links h3 {
            margin-top: 0;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }
        .related-item {
            background-color: var(--bg-primary);
            padding: 20px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .related-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .related-item a {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            display: block;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .related-item a:hover {
            color: var(--accent-color);
        }
        .related-item p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 0;
        }
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 60px 20px 30px;
            margin-top: 60px;
        }
        .footer-container {
            max-width: var(--max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
        }
        .footer-section h3 {
            color: white;
            font-size: 1.3rem;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent-color);
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #cbd5e0;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 20px 0;
        }
        friend-link {
            background-color: rgba(255,255,255,0.1);
            padding: 8px 16px;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        friend-link a {
            color: white;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link:hover {
            background-color: rgba(229, 62, 62, 0.3);
            transform: translateY(-2px);
        }
        .copyright {
            text-align: center;
            padding-top: 40px;
            margin-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #a0aec0;
            font-size: 0.9rem;
        }
        .update-time {
            background-color: var(--bg-tertiary);
            padding: 15px;
            border-radius: var(--radius-md);
            text-align: center;
            margin: 30px 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
            h3 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                padding: 0 15px;
            }
            .nav-desktop {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .subtitle {
                font-size: 1.1rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.5rem;
            }
            section {
                padding: 20px;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 480px) {
            .hero-section {
                padding: 30px 15px;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .meta-info {
                flex-direction: column;
                gap: 15px;
                align-items: center;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        @media print {
            header, footer, .interactive-section, .breadcrumb {
                display: none;
            }
            body {
                color: black;
                background: white;
            }
            .content-image {
                max-width: 80%;
            }
        }
