body { font-family: Roboto, Arial, sans-serif; font-size: 16px; line-height: 1.6; color: #333; }
  h2 { font-size: 22px; margin-top: 40px; }
  h3 { font-size: 20px; margin-top: 30px; }
  table { border-collapse: collapse; width: 100%; margin: 20px 0; }
  th, td { border: 1px solid #000; padding: 8px; text-align: center; }
  th { background-color: #f5f5f5; }
  img { display: block; margin: 20px auto; max-width: 100%; height: auto; }
  ul { margin: 10px 0 10px 20px; }