body { font-family: sans-serif; line-height: 1.6; margin: 20px; }
        .container { max-width: 960px; margin: auto; background: #f4f4f4; padding: 20px; border-radius: 8px; }
        nav ul { list-style: none; padding: 0; }
        nav ul li { display: inline; margin-right: 20px; }
        nav ul li a { text-decoration: none; color: blue; font-weight: bold; }
        .update-list { margin-top: 30px; }
        .update-list h2 { border-bottom: 2px solid #ccc; padding-bottom: 10px; }