* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .site-header {
            background: linear-gradient(90deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-size: 2rem;
            font-weight: 900;
            color: white;
            text-decoration: none;
            text-transform: uppercase;
            letter-spacing: 2px;
            background: linear-gradient(45deg, #ffcc00, #ff9900);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            transition: transform 0.3s;
        }
        .my-logo a:hover { transform: scale(1.05); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: #e0e0e0;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            transition: all 0.3s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: rgba(255, 204, 0, 0.2);
            color: #ffcc00;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            padding: 1rem 0;
            background: #f8f9fa;
            border-bottom: 1px solid #dee2e6;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: #2a5298;
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .search-container {
            background: white;
            padding: 2rem;
            margin: 2rem auto;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            text-align: center;
            max-width: 800px;
        }
        .search-form {
            display: flex;
            gap: 10px;
        }
        .search-form input {
            flex: 1;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-form input:focus {
            outline: none;
            border-color: #2a5298;
        }
        .search-form button {
            background: linear-gradient(90deg, #1e3c72, #2a5298);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            transition: transform 0.3s, opacity 0.3s;
        }
        .search-form button:hover {
            transform: translateY(-2px);
            opacity: 0.95;
        }
        main { flex: 1; padding: 2rem 0; }
        article { background: white; border-radius: 16px; padding: 2.5rem; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05); }
        .article-header { margin-bottom: 2.5rem; text-align: center; }
        h1 {
            font-size: 2.8rem;
            color: #1e3c72;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .last-updated {
            color: #666;
            font-style: italic;
            font-size: 0.95rem;
            margin-top: 1rem;
        }
        h2 { font-size: 2rem; color: #2a5298; margin: 2rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 3px solid #ffcc00; }
        h3 { font-size: 1.6rem; color: #333; margin: 1.8rem 0 1rem; }
        h4 { font-size: 1.3rem; color: #555; margin: 1.5rem 0 0.8rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        .content-highlight {
            background: linear-gradient(120deg, #fff9e6 0%, #fff0cc 100%);
            border-left: 5px solid #ffcc00;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        emoji { font-size: 1.2em; margin-right: 5px; }
        .featured-img {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 12px;
            margin: 2rem auto;
            display: block;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s;
        }
        .featured-img:hover { transform: scale(1.01); }
        .internal-link {
            color: #1e3c72;
            font-weight: 600;
            text-decoration: none;
            border-bottom: 2px dotted #ffcc00;
            padding-bottom: 2px;
        }
        .internal-link:hover {
            color: #ff9900;
            border-bottom-style: solid;
        }
        .interactive-section {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 12px;
            margin: 3rem 0;
        }
        .rating-form, .comment-form {
            margin-top: 1.5rem;
        }
        .stars {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }
        .star {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star.active, .star:hover { color: #ffcc00; }
        textarea, .rating-form input {
            width: 100%;
            padding: 15px;
            margin: 10px 0;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-family: inherit;
            font-size: 1rem;
        }
        .interactive-section button {
            background: linear-gradient(90deg, #1e3c72, #2a5298);
            color: white;
            padding: 12px 30px;
            border: none;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s;
        }
        .interactive-section button:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(30, 60, 114, 0.3);
        }
        .site-footer {
            background: #1a1a1a;
            color: #ccc;
            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 h4 {
            color: #ffcc00;
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
        }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 0.8rem; }
        .footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-links a:hover { color: #ffcc00; }
        friend-link {
            display: block;
            background: #2a2a2a;
            padding: 1rem;
            border-radius: 6px;
            margin: 1rem 0;
            font-weight: bold;
        }
        friend-link a { color: #4da6ff; }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #444;
            font-size: 0.9rem;
            color: #888;
        }
        @media (max-width: 768px) {
            .header-content { flex-wrap: wrap; }
            .hamburger { display: block; }
            .main-nav {
                width: 100%;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.5s ease;
            }
            .main-nav.active { max-height: 300px; margin-top: 1rem; }
            .main-nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
            .main-nav a { display: block; text-align: center; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .search-form { flex-direction: column; }
            .search-form button { padding: 15px; }
            article { padding: 1.5rem; }
        }