* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        h1, h2, h3, h4 {
            font-family: 'Arial Black', Gadget, sans-serif;
            color: #2c3e50;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            color: #FFCC00;
            text-shadow: 3px 3px 0 #2c3e50, 6px 6px 0 rgba(0,0,0,0.1);
            margin: 1.5rem 0;
            text-align: center;
        }
        h2 {
            font-size: 2.2rem;
            border-bottom: 4px solid #FFCC00;
            padding-bottom: 0.5rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.8rem;
            color: #3498db;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: #2c3e50;
            margin-top: 1.5rem;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        a {
            color: #e74c3c;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        a:hover {
            color: #c0392b;
            text-decoration: underline;
        }
        strong {
            color: #2c3e50;
            font-weight: 800;
        }
        em {
            color: #7f8c8d;
            font-style: italic;
        }
        header {
            background: linear-gradient(to right, #2c3e50, #4a6491);
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', Gadget, sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            color: #FFCC00;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            color: #e74c3c;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); }
        }
        .desktop-nav {
            display: flex;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #ecf0f1;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover {
            background: #FFCC00;
            color: #2c3e50;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #ecf0f1;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #2c3e50;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 1rem;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
            z-index: 999;
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            color: #ecf0f1;
            padding: 0.8rem 1rem;
            border-bottom: 1px solid #34495e;
            transition: all 0.3s ease;
        }
        .mobile-nav a:hover {
            background: #FFCC00;
            color: #2c3e50;
            padding-left: 1.5rem;
        }
        .breadcrumb {
            background: #ecf0f1;
            padding: 0.8rem 1rem;
            border-radius: 4px;
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #3498db;
        }
        .breadcrumb span {
            color: #7f8c8d;
            margin: 0 5px;
        }
        main {
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 25px rgba(0,0,0,0.08);
            padding: 2.5rem;
            margin: 2rem auto;
            position: relative;
            overflow: hidden;
        }
        main::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: linear-gradient(to right, #FFCC00, #e74c3c, #3498db);
        }
        .search-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 5px solid #3498db;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
        }
        .search-input {
            flex: 1;
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: 4px 0 0 4px;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        .search-input:focus {
            outline: none;
            border-color: #3498db;
        }
        .search-btn {
            background: #3498db;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
            transition: background 0.3s ease;
            font-weight: 600;
        }
        .search-btn:hover {
            background: #2980b9;
        }
        .content-highlight {
            background: linear-gradient(135deg, #fff9c4, #ffecb3);
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
            border-left: 5px solid #FFCC00;
            box-shadow: 0 3px 10px rgba(255,204,0,0.2);
        }
        .highlight-title {
            color: #d35400;
            font-size: 1.4rem;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-image {
            width: 100%;
            max-width: 800px;
            height: auto;
            border-radius: 8px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .article-image:hover {
            transform: scale(1.01);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: #7f8c8d;
            margin-top: 0.5rem;
            font-size: 0.9rem;
        }
        .related-links {
            background: #e8f4fc;
            padding: 1.5rem;
            border-radius: 8px;
            margin: 2rem 0;
        }
        .related-links h3 {
            color: #2980b9;
            margin-top: 0;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        .link-item {
            background: white;
            padding: 1rem;
            border-radius: 6px;
            transition: all 0.3s ease;
            border-left: 4px solid #3498db;
        }
        .link-item:hover {
            transform: translateX(5px);
            box-shadow: 0 3px 10px rgba(52,152,219,0.2);
        }
        .user-interaction {
            background: #f5f5f5;
            padding: 2rem;
            border-radius: 10px;
            margin: 3rem 0;
            border-top: 3px solid #FFCC00;
        }
        .rating-section, .comment-section {
            margin-bottom: 2rem;
        }
        .star-rating {
            display: flex;
            gap: 5px;
            margin: 1rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: #FFCC00;
        }
        .interaction-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            max-width: 600px;
        }
        .form-input, .form-textarea {
            padding: 0.8rem 1rem;
            border: 2px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.3s ease;
        }
        .form-textarea {
            min-height: 120px;
            resize: vertical;
        }
        .form-input:focus, .form-textarea:focus {
            outline: none;
            border-color: #3498db;
        }
        .form-btn {
            background: #2c3e50;
            color: white;
            border: none;
            padding: 0.8rem 1.5rem;
            border-radius: 4px;
            cursor: pointer;
            font-weight: 600;
            transition: background 0.3s ease;
            align-self: flex-start;
        }
        .form-btn:hover {
            background: #1a252f;
        }
        footer {
            background: #2c3e50;
            color: #ecf0f1;
            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: #FFCC00;
            border-bottom: 2px solid #FFCC00;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
            font-size: 1.4rem;
        }
        friend-link {
            display: block;
            color: #3498db;
            margin-bottom: 0.5rem;
            padding: 0.3rem 0;
            transition: all 0.3s ease;
        }
        friend-link:hover {
            color: #FFCC00;
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
        }
        .update-time {
            background: #FFCC00;
            color: #2c3e50;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            display: inline-block;
            font-weight: bold;
            margin: 1rem 0;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
            .container { padding: 0 15px; }
        }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-menu-btn { display: block; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            main { padding: 1.5rem; }
            .search-form { flex-direction: column; }
            .search-input { border-radius: 4px; margin-bottom: 10px; }
            .search-btn { border-radius: 4px; }
            .links-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            h1 { font-size: 1.8rem; }
            .my-logo { font-size: 1.8rem; }
            .content-highlight { padding: 1rem; }
            .user-interaction { padding: 1.5rem; }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        main, .search-section, .user-interaction {
            animation: fadeIn 0.8s ease-out;
        }
        @media print {
            header, footer, .search-section, .user-interaction {
                display: none;
            }
            body { background: white; }
            main { box-shadow: none; }
            a { color: #333; text-decoration: underline; }
        }