* { 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-color: #f8f9fa;
            max-width: 100%;
            overflow-x: hidden;
        }
        a { color: #0056b3; text-decoration: none; transition: color 0.3s; }
        a:hover { color: #ff6b00; }
        img { max-width: 100%; height: auto; display: block; }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header { background: linear-gradient(135deg, #0d3a5f 0%, #1a6ca8 100%); color: white; box-shadow: 0 4px 12px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
        .header-top { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; }
        .my-logo { font-size: 2.2rem; font-weight: 800; letter-spacing: 1px; }
        .my-logo a { color: white; }
        .my-logo span { color: #ffcc00; }
        nav ul { display: flex; list-style: none; }
        nav ul li { margin-left: 30px; }
        nav ul li a { color: white; font-weight: 600; font-size: 1.05rem; padding: 8px 0; position: relative; }
        nav ul li a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 3px; background: #ffcc00; transition: width 0.3s; }
        nav ul li a:hover::after { width: 100%; }
        .hamburger { display: none; cursor: pointer; font-size: 1.8rem; }
        #nav-toggle { display: none; }
        .breadcrumb { background: #e9ecef; padding: 12px 0; font-size: 0.9rem; margin-bottom: 30px; }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #ff6b00; }
        .breadcrumb span { color: #777; }
        main { display: grid; grid-template-columns: 1fr 300px; gap: 40px; margin: 30px 0; }
        .article-content { background: white; padding: 40px; border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
        aside { background: white; padding: 25px; border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); height: fit-content; }
        h1 { font-size: 2.8rem; margin-bottom: 25px; color: #0d3a5f; line-height: 1.2; border-bottom: 4px solid #ffcc00; padding-bottom: 15px; }
        h2 { font-size: 2rem; margin: 40px 0 20px; color: #1a6ca8; padding-left: 10px; border-left: 5px solid #ffcc00; }
        h3 { font-size: 1.6rem; margin: 30px 0 15px; color: #333; }
        h4 { font-size: 1.3rem; margin: 25px 0 12px; color: #555; }
        p { margin-bottom: 22px; text-align: justify; }
        .lead { font-size: 1.2rem; font-weight: 500; color: #444; background: #f0f8ff; padding: 20px; border-radius: 8px; margin-bottom: 30px; }
        strong { color: #0d3a5f; }
        em { color: #666; }
        ul, ol { margin-left: 25px; margin-bottom: 25px; }
        li { margin-bottom: 10px; }
        .button { display: inline-block; background: linear-gradient(to right, #1a6ca8, #0d3a5f); color: white; padding: 12px 28px; border-radius: 50px; font-weight: 600; border: none; cursor: pointer; transition: transform 0.3s, box-shadow 0.3s; }
        .button:hover { transform: translateY(-3px); box-shadow: 0 7px 15px rgba(26, 108, 168, 0.4); color: white; }
        .module { margin-bottom: 40px; padding-bottom: 30px; border-bottom: 2px dashed #eee; }
        .module h3 { margin-top: 0; }
        form input, form textarea, form select { width: 100%; padding: 14px; margin-bottom: 15px; border: 1px solid #ccc; border-radius: 8px; font-family: inherit; font-size: 1rem; }
        form textarea { min-height: 120px; resize: vertical; }
        .stars { display: flex; gap: 10px; margin: 15px 0; }
        .stars input { display: none; }
        .stars label { font-size: 2rem; color: #ddd; cursor: pointer; transition: color 0.2s; }
        .stars label:hover, .stars input:checked ~ label { color: #ffcc00; }
        .featured-img { text-align: center; margin: 40px 0; }
        .featured-img img { border-radius: 10px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); border: 5px solid white; }
        .img-caption { font-style: italic; color: #666; margin-top: 10px; font-size: 0.95rem; }
        .internal-link { background: #f0f8ff; padding: 3px 8px; border-radius: 4px; border-left: 3px solid #1a6ca8; }
        .internal-link:hover { background: #e1f0ff; }
        .update-time { text-align: right; font-style: italic; color: #888; margin-top: 50px; padding-top: 20px; border-top: 1px solid #eee; }
        footer { background: #0d3a5f; color: #ccc; padding: 50px 0 20px; margin-top: 60px; }
        .footer-content { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-bottom: 40px; }
        .footer-section h4 { color: #ffcc00; margin-bottom: 20px; font-size: 1.3rem; }
        .footer-links li { list-style: none; margin-bottom: 12px; }
        .footer-links a { color: #aaa; }
        .footer-links a:hover { color: #ffcc00; }
        friend-link { display: block; font-style: italic; color: #aaa; margin: 10px 0; }
        .copyright { text-align: center; padding-top: 25px; border-top: 1px solid #1a4a6e; color: #aaa; font-size: 0.9rem; }
        @media (max-width: 992px) {
            main { grid-template-columns: 1fr; }
            .footer-content { grid-template-columns: repeat(2, 1fr); }
            h1 { font-size: 2.4rem; }
        }
        @media (max-width: 768px) {
            .header-top { flex-direction: column; align-items: flex-start; }
            nav ul { flex-direction: column; width: 100%; margin-top: 20px; display: none; }
            nav ul li { margin: 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
            nav ul li a { display: block; padding: 15px; }
            .hamburger { display: block; align-self: flex-end; margin-top: -50px; }
            #nav-toggle:checked ~ nav ul { display: block; }
            .footer-content { grid-template-columns: 1fr; }
            .article-content { padding: 25px; }
        }