* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #1a365d;
            --secondary: #2d3748;
            --accent: #e53e3e;
            --light: #f7fafc;
            --dark: #1a202c;
            --text: #2d3748;
            --text-light: #718096;
            --border: #e2e8f0;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            line-height: 1.8;
            color: var(--text);
            background: var(--light);
            max-width: 100%;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            color: var(--primary);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
        }
        h1 {
            font-size: 2.8rem;
            margin-top: 2rem;
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-top: 3rem;
            padding-left: 0.5rem;
            border-left: 4px solid var(--primary);
        }
        h3 {
            font-size: 1.8rem;
            margin-top: 2.5rem;
            color: var(--secondary);
        }
        h4 {
            font-size: 1.4rem;
            margin-top: 2rem;
            color: var(--secondary);
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        header {
            background: var(--dark);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            color: var(--accent);
        }
        .breadcrumb {
            background: var(--light);
            padding: 0.8rem 1rem;
            margin-bottom: 2rem;
            border-radius: 4px;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .nav-desktop {
            display: flex;
            gap: 2rem;
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            padding: 0.5rem 1rem;
            border-radius: 4px;
        }
        .nav-desktop a:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
        }
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            background: var(--dark);
            padding: 1rem;
            transform: translateY(-100%);
            opacity: 0;
            transition: var(--transition);
            z-index: 999;
            box-shadow: var(--shadow);
        }
        .mobile-nav.active {
            transform: translateY(0);
            opacity: 1;
        }
        .mobile-nav a {
            display: block;
            color: white;
            text-decoration: none;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .search-container {
            background: var(--primary);
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-form input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
        }
        .search-form button {
            background: var(--accent);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #c53030;
        }
        article {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
        }
        .article-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--border);
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .last-updated {
            color: var(--accent);
            font-weight: 500;
        }
        .featured-image {
            width: 100%;
            height: auto;
            border-radius: 8px;
            margin: 2rem 0;
            box-shadow: var(--shadow);
        }
        .content-section {
            margin: 3rem 0;
        }
        .highlight-box {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
            border-left: 4px solid #d97706;
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .quote {
            font-style: italic;
            font-size: 1.2rem;
            color: var(--primary);
            padding: 2rem;
            background: var(--light);
            border-radius: 8px;
            margin: 2rem 0;
            text-align: center;
        }
        .link-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .link-card {
            background: var(--light);
            padding: 1rem;
            border-radius: 8px;
            text-decoration: none;
            color: var(--text);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .link-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: var(--primary);
        }
        .link-card h4 {
            color: var(--primary);
            margin: 0 0 0.5rem 0;
        }
        .interactive-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }
        .comment-section, .rating-section {
            background: var(--light);
            padding: 1.5rem;
            border-radius: 8px;
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            color: #cbd5e0;
            cursor: pointer;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .star:hover, .star.active {
            color: #f6ad55;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        input, textarea, select {
            padding: 0.8rem;
            border: 1px solid var(--border);
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
        }
        button[type="submit"] {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
        }
        button[type="submit"]:hover {
            background: var(--secondary);
        }
        footer {
            background: var(--dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-section h3 {
            color: white;
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links a {
            display: block;
            color: #cbd5e0;
            text-decoration: none;
            margin-bottom: 0.8rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 5px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin: 0.5rem 0.5rem 0.5rem 0;
            color: white;
            text-decoration: none;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .container {
                padding: 0 0.8rem;
            }
            article {
                padding: 1.5rem;
            }
            .interactive-section {
                grid-template-columns: 1fr;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                border-radius: 4px;
                margin-bottom: 0.5rem;
            }
            .search-form button {
                border-radius: 4px;
                padding: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
            }
            .link-list {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.6s ease-out;
        }
        .text-bold {
            font-weight: 700;
            color: var(--primary);
        }
        .text-accent {
            color: var(--accent);
        }
        .text-center {
            text-align: center;
        }
        .mb-3 {
            margin-bottom: 3rem;
        }
        .mt-3 {
            margin-top: 3rem;
        }
        .emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }