* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-color: #1e40af;
            --secondary-color: #dc2626;
            --accent-color: #f59e0b;
            --text-dark: #1f2937;
            --text-light: #6b7280;
            --bg-light: #f3f4f6;
            --bg-white: #ffffff;
            --border-color: #e5e7eb;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --max-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-dark);
            background-color: var(--bg-light);
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #1e3a8a 100%);
            color: white;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow);
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .my-logo:hover {
            transform: scale(1.05);
            color: var(--accent-color);
        }
        .my-logo i {
            color: var(--accent-color);
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
            max-width: 400px;
        }
        .search-form input {
            flex: 1;
            padding: 0.75rem 1rem;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
            outline: none;
        }
        .search-form button {
            background: var(--secondary-color);
            color: white;
            border: none;
            padding: 0 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: #b91c1c;
        }
        .main-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 0;
            position: relative;
            transition: var(--transition);
        }
        .nav-links a:hover {
            color: var(--accent-color);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-color);
            transition: width 0.3s ease;
        }
        .nav-links a:hover::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 0.5rem;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--primary-color);
            text-decoration: none;
        }
        .breadcrumb li:not(:last-child)::after {
            content: '›';
            margin-left: 0.5rem;
            color: var(--text-light);
        }
        main {
            background: var(--bg-white);
            box-shadow: var(--shadow);
            border-radius: 8px;
            margin: 2rem auto;
            overflow: hidden;
        }
        .article-header {
            padding: 3rem 2rem;
            background: linear-gradient(rgba(30, 64, 175, 0.9), rgba(30, 64, 175, 0.8)), url('https://images.unsplash.com/photo-1575361204480-aadea25e6e68?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
            background-size: cover;
            background-position: center;
            color: white;
            text-align: center;
        }
        .article-header h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            color: rgba(255, 255, 255, 0.9);
            margin-top: 2rem;
        }
        .article-content {
            padding: 3rem 2rem;
        }
        h1, h2, h3, h4 {
            line-height: 1.3;
            margin: 2rem 0 1rem;
            color: var(--primary-color);
        }
        h1 { font-size: 3rem; }
        h2 { font-size: 2.2rem; border-bottom: 3px solid var(--accent-color); padding-bottom: 0.5rem; }
        h3 { font-size: 1.8rem; color: var(--secondary-color); }
        h4 { font-size: 1.4rem; color: var(--text-dark); }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }
        .lead {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--primary-color);
            margin: 2rem 0;
            padding-left: 1rem;
            border-left: 4px solid var(--accent-color);
        }
        .highlight {
            background: linear-gradient(120deg, #fde68a 0%, #fde68a 100%);
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 4px solid var(--accent-color);
        }
        .stats-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .stat-item {
            background: var(--bg-light);
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
            border-top: 4px solid var(--primary-color);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary-color);
            display: block;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            margin: 2rem auto;
            text-align: center;
        }
        .article-image img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .article-image img:hover {
            transform: scale(1.02);
        }
        .image-caption {
            font-style: italic;
            color: var(--text-light);
            margin-top: 0.5rem;
            font-size: 0.95rem;
        }
        .content-link {
            color: var(--secondary-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 2px dotted var(--secondary-color);
            transition: var(--transition);
        }
        .content-link:hover {
            color: var(--primary-color);
            border-bottom-style: solid;
        }
        .interactive-section {
            background: var(--bg-light);
            padding: 2rem;
            border-radius: 8px;
            margin: 3rem 0;
        }
        .rating-system, .comment-form {
            margin: 2rem 0;
        }
        .stars {
            display: flex;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .star {
            font-size: 1.8rem;
            color: #e5e7eb;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: var(--accent-color);
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 600px;
        }
        form input,
        form textarea,
        form select {
            padding: 0.75rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-family: inherit;
            font-size: 1rem;
        }
        form textarea {
            min-height: 150px;
            resize: vertical;
        }
        .form-row {
            display: flex;
            gap: 1rem;
        }
        .form-row > * {
            flex: 1;
        }
        .btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 4px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        .btn:hover {
            background: #1e3a8a;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: var(--secondary-color);
        }
        .btn-secondary:hover {
            background: #b91c1c;
        }
        .related-links {
            background: var(--bg-light);
            padding: 2rem;
            border-radius: 8px;
            margin: 3rem 0;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        .link-item {
            background: var(--bg-white);
            padding: 1rem;
            border-radius: 4px;
            transition: var(--transition);
            border-left: 3px solid var(--primary-color);
        }
        .link-item:hover {
            transform: translateX(5px);
            box-shadow: var(--shadow);
        }
        .link-item a {
            color: var(--text-dark);
            text-decoration: none;
            font-weight: 600;
            display: block;
        }
        footer {
            background: var(--text-dark);
            color: white;
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .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: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 0.75rem;
        }
        .footer-links a {
            color: #d1d5db;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.1);
            padding: 1rem;
            margin: 1rem 0;
            border-radius: 4px;
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateX(5px);
        }
        friend-link a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #9ca3af;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 2rem; }
            .article-header { padding: 2rem 1rem; }
            .article-content { padding: 2rem 1rem; }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 1rem;
                text-align: center;
            }
            .search-form {
                width: 100%;
                max-width: 100%;
            }
            .hamburger {
                display: block;
                position: absolute;
                top: 1.5rem;
                right: 20px;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--primary-color);
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                box-shadow: var(--shadow);
            }
            .nav-links.active {
                display: flex;
            }
            .form-row {
                flex-direction: column;
            }
            .stats-box {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .article-header h1 { font-size: 2.2rem; }
            .article-meta { flex-direction: column; gap: 0.5rem; }
        }
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .py-2 { padding-top: 2rem; padding-bottom: 2rem; }
        .emoji { font-size: 1.2em; margin: 0 2px; }
        .strong { font-weight: 800; color: var(--primary-color); }
        .update-time { 
            color: var(--secondary-color); 
            font-weight: 600; 
            background: #fee2e2; 
            padding: 0.25rem 0.5rem; 
            border-radius: 4px; 
            display: inline-block;
            margin: 0.5rem 0;
        }