* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #f8f9fa;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 15px;
        }
        a { color: #2a5db0; text-decoration: none; transition: color 0.3s ease; }
        a:hover { color: #1a3a7a; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { padding-left: 1.5rem; margin: 1rem 0; }
        .container { width: 100%; }
        header { background: #fff; box-shadow: 0 2px 15px rgba(0,0,0,0.05); padding: 1rem 0; position: sticky; top: 0; z-index: 1000; }
        .header-container { display: flex; justify-content: space-between; align-items: center; }
        .my-logo { font-size: 1.8rem; font-weight: 800; color: #2a5db0; letter-spacing: -0.5px; }
        .my-logo:hover { text-decoration: none; }
        nav ul { display: flex; list-style: none; gap: 2rem; }
        nav a { font-weight: 600; color: #444; }
        .hamburger { display: none; font-size: 1.5rem; cursor: pointer; color: #2a5db0; }
        .breadcrumb { padding: 0.8rem 0; font-size: 0.9rem; color: #666; border-bottom: 1px solid #eee; margin-bottom: 2rem; }
        .breadcrumb a { color: #666; }
        .search-box { display: flex; max-width: 500px; margin: 1.5rem auto 2rem; }
        .search-box input { flex: 1; padding: 0.8rem 1rem; border: 2px solid #ddd; border-radius: 4px 0 0 4px; font-size: 1rem; }
        .search-box button { background: #2a5db0; color: white; border: none; padding: 0.8rem 1.5rem; border-radius: 0 4px 4px 0; cursor: pointer; transition: background 0.3s; }
        .search-box button:hover { background: #1a3a7a; }
        main { background: white; border-radius: 10px; box-shadow: 0 5px 25px rgba(0,0,0,0.05); padding: 3rem; margin: 2rem 0; }
        h1 { font-size: 2.8rem; color: #1a1a1a; margin-bottom: 1.5rem; line-height: 1.2; }
        h2 { font-size: 2rem; color: #2a5db0; margin: 2.5rem 0 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid #eee; }
        h3 { font-size: 1.5rem; color: #333; margin: 2rem 0 0.8rem; }
        h4 { font-size: 1.2rem; color: #555; margin: 1.5rem 0 0.5rem; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .intro { font-size: 1.2rem; color: #555; background: #f0f7ff; padding: 1.5rem; border-left: 4px solid #2a5db0; margin: 2rem 0; border-radius: 0 8px 8px 0; }
        .highlight { background: #fff9db; padding: 0.2rem 0.4rem; border-radius: 3px; font-weight: 600; }
        .emoji { font-size: 1.2em; margin-right: 0.3rem; }
        .update-time { font-style: italic; color: #888; margin-bottom: 2rem; display: block; }
        .feature-img { width: 80%; margin: 2rem auto; border-radius: 10px; overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
        .feature-img img { width: 100%; transition: transform 0.5s ease; }
        .feature-img img:hover { transform: scale(1.02); }
        .img-caption { text-align: center; font-style: italic; color: #666; margin-top: 0.5rem; font-size: 0.9rem; }
        .rating-module, .comment-module { background: #f9f9f9; padding: 2rem; border-radius: 10px; margin: 3rem 0; border: 1px solid #eee; }
        .rating-module h3, .comment-module h3 { margin-top: 0; }
        .stars { margin: 1rem 0; }
        .stars i { color: #ffc107; font-size: 1.8rem; cursor: pointer; margin-right: 0.3rem; transition: color 0.2s; }
        .stars i:hover { color: #ff9800; }
        form label { display: block; margin: 1rem 0 0.5rem; font-weight: 600; }
        form input, form textarea, form select { width: 100%; padding: 0.8rem; border: 1px solid #ccc; border-radius: 5px; font-family: inherit; font-size: 1rem; }
        form textarea { min-height: 120px; resize: vertical; }
        form button { background: #2a5db0; color: white; border: none; padding: 0.8rem 2rem; border-radius: 5px; cursor: pointer; font-size: 1rem; margin-top: 1rem; transition: background 0.3s; }
        form button:hover { background: #1a3a7a; }
        footer { background: #1a1a1a; color: #ccc; padding: 3rem 0 2rem; margin-top: 4rem; border-radius: 10px 10px 0 0; }
        .footer-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
        .footer-section h4 { color: #fff; margin-bottom: 1rem; }
        friend-link { display: block; margin: 0.5rem 0; color: #aaa; }
        friend-link a { color: #aaa; }
        friend-link a:hover { color: #fff; }
        .copyright { text-align: center; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid #333; color: #888; font-size: 0.9rem; }
        @media (max-width: 992px) {
            main { padding: 2rem; }
            h1 { font-size: 2.3rem; }
            .feature-img { width: 95%; }
        }
        @media (max-width: 768px) {
            nav ul { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: white; padding: 1rem; box-shadow: 0 5px 10px rgba(0,0,0,0.1); }
            nav ul.active { display: flex; }
            .hamburger { display: block; }
            .header-container { flex-wrap: wrap; }
            h1 { font-size: 2rem; }
            h2 { font-size: 1.7rem; }
            .footer-container { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            main { padding: 1.5rem; }
            h1 { font-size: 1.8rem; }
            .rating-module, .comment-module { padding: 1.5rem; }
        }