* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            min-height: 100vh;
        }
        a { color: #1a5fb4; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #e95420; }
        img { max-width: 100%; height: auto; display: block; }
        .container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        header { background: linear-gradient(90deg, #0d3b6c 0%, #1a5fb4 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-container { display: flex; justify-content: space-between; align-items: center; }
        .my-logo { font-size: 2rem; font-weight: 800; letter-spacing: 1px; color: white; }
        .my-logo span { color: #ffde57; }
        nav { display: flex; align-items: center; }
        .nav-links { display: flex; list-style: none; gap: 2rem; }
        .nav-links a { color: #e0f2ff; font-weight: 500; padding: 0.5rem 0; position: relative; }
        .nav-links a:hover { color: #ffde57; }
        .nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: #ffde57; transition: width 0.3s; }
        .nav-links a:hover::after { width: 100%; }
        .hamburger { display: none; font-size: 1.8rem; cursor: pointer; }
        .breadcrumb { background: #e8f1fa; padding: 0.8rem 0; font-size: 0.9rem; }
        .breadcrumb ul { display: flex; list-style: none; flex-wrap: wrap; }
        .breadcrumb li:not(:last-child)::after { content: '›'; margin: 0 10px; color: #666; }
        .breadcrumb a { color: #555; }
        main { padding: 2rem 0; }
        .content-grid { display: grid; grid-template-columns: 1fr 300px; gap: 2.5rem; }
        @media (max-width: 992px) { .content-grid { grid-template-columns: 1fr; } }
        article { background: white; border-radius: 12px; padding: 2.5rem; box-shadow: 0 6px 20px rgba(0,0,0,0.07); }
        h1 { color: #0d3b6c; font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; border-bottom: 3px solid #ffde57; padding-bottom: 1rem; }
        h2 { color: #1a5fb4; margin: 2.5rem 0 1.2rem; font-size: 2rem; }
        h3 { color: #2d7cd6; margin: 2rem 0 1rem; font-size: 1.5rem; }
        h4 { color: #555; margin: 1.5rem 0 0.8rem; font-size: 1.2rem; }
        p { margin-bottom: 1.2rem; text-align: justify; }
        .intro { font-size: 1.1rem; color: #444; background: #f0f8ff; padding: 1.5rem; border-left: 5px solid #1a5fb4; border-radius: 0 8px 8px 0; margin-bottom: 2rem; }
        .highlight { background: linear-gradient(120deg, #ffde5780 0%, transparent 100%); padding: 0.2rem 0.5rem; border-radius: 4px; font-weight: 600; }
        .emoji { font-size: 1.2em; margin-right: 5px; }
        .feature-img { width: 100%; border-radius: 10px; box-shadow: 0 8px 16px rgba(0,0,0,0.1); margin: 2rem 0; border: 1px solid #ddd; }
        .quote { font-style: italic; border-left: 4px solid #e95420; padding-left: 1.5rem; margin: 2rem; color: #555; }
        .link-list { background: #f9f9f9; padding: 1.5rem; border-radius: 8px; margin: 2rem 0; }
        .link-list ul { list-style-position: inside; columns: 2; }
        .link-list li { margin-bottom: 0.8rem; }
        @media (max-width: 768px) { .link-list ul { columns: 1; } }
        aside { position: sticky; top: 120px; align-self: start; }
        .sidebar-widget { background: white; border-radius: 10px; padding: 1.8rem; margin-bottom: 1.5rem; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        .widget-title { color: #0d3b6c; font-size: 1.3rem; margin-bottom: 1.2rem; padding-bottom: 0.5rem; border-bottom: 2px solid #ffde57; }
        #search-form { display: flex; }
        #search-input { flex-grow: 1; padding: 0.8rem; border: 2px solid #1a5fb4; border-radius: 6px 0 0 6px; font-size: 1rem; }
        #search-btn { background: #1a5fb4; color: white; border: none; padding: 0 1.5rem; border-radius: 0 6px 6px 0; cursor: pointer; transition: background 0.3s; }
        #search-btn:hover { background: #0d3b6c; }
        .rating { display: flex; align-items: center; gap: 1rem; margin: 1.5rem 0; }
        .stars { display: flex; gap: 5px; }
        .stars i { color: #ffcc00; font-size: 1.5rem; cursor: pointer; transition: transform 0.2s; }
        .stars i:hover { transform: scale(1.2); }
        .rating-form, .comment-form { margin-top: 1rem; }
        .form-group { margin-bottom: 1rem; }
        label { display: block; margin-bottom: 0.5rem; font-weight: 600; }
        input, textarea, select { width: 100%; padding: 0.8rem; border: 1px solid #ccc; border-radius: 6px; font-family: inherit; }
        button[type="submit"] { background: linear-gradient(90deg, #e95420 0%, #ff6b3d 100%); color: white; border: none; padding: 0.8rem 2rem; border-radius: 6px; font-weight: bold; cursor: pointer; transition: opacity 0.3s; }
        button[type="submit"]:hover { opacity: 0.9; }
        .update-time { font-size: 0.9rem; color: #777; text-align: right; margin-top: 3rem; padding-top: 1rem; border-top: 1px dashed #ccc; }
        footer { background: #0d3b6c; color: #c0d5f0; padding: 3rem 0 1.5rem; margin-top: 3rem; }
        .footer-container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
        .footer-section { flex: 1; min-width: 250px; }
        .footer-title { color: white; font-size: 1.2rem; margin-bottom: 1.5rem; }
        friend-link { display: block; margin-bottom: 0.8rem; color: #a0c8ff; }
        friend-link:hover { color: #ffde57; }
        .copyright { text-align: center; margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid #2d7cd6; color: #a0c8ff; font-size: 0.9rem; }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .nav-links {
                position: fixed; top: 80px; left: -100%; width: 100%; background: #0d3b6c; flex-direction: column; align-items: center; padding: 2rem 0; transition: left 0.5s; box-shadow: 0 10px 15px rgba(0,0,0,0.1);
            }
            .nav-links.active { left: 0; }
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            article { padding: 1.8rem; }
        }