* {
    box-sizing: border-box;
  }

  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
      Roboto, Helvetica, Arial, sans-serif;
    color: #222;
    background-color: #ffffff;
    line-height: 1.6;
  }

  .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 32px 20px;
  }

  header h1 {
    margin-bottom: 8px;
  }

  .subtitle {
    font-size: 1.1rem;
    color: #555;
  }

  h2 {
    margin-top: 32px;
    margin-bottom: 12px;
  }

  ul {
    padding-left: 20px;
  }

  li {
    margin-bottom: 8px;
  }

  a {
    color: #0066cc;
    text-decoration: none;
  }

  a:hover {
    text-decoration: underline;
  }

  .footer {
    border-top: 1px solid #eee;
    margin-top: 40px;
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: #666;
  }

  .last-updated {
    margin-top: 40px;
    font-style: italic;
    color: #666;
  }

  copyright {
    margin-top: 8px;
  }