body { font-family: Arial, sans-serif; line-height: 1.6; margin: 0; padding: 0; background-color: f4f4f4; color: 333; }
  header { background-color: 333; color: fff; padding: 1rem 0; text-align: center; }
  main { padding: 20px; max-width: 800px; margin: 20px auto; background-color: fff; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
  section { margin-bottom: 2rem; }
  article { padding: 1rem; }
  h1 { font-size: 2.5em; color: 333; margin-bottom: 1rem; }
  h2 { font-size: 1.8em; color: 555; margin-top: 1.5rem; margin-bottom: 0.8rem; border-bottom: 1px solid eee; padding-bottom: 0.5rem; }
  h3 { font-size: 1.3em; color: 666; margin-top: 1rem; margin-bottom: 0.5rem; }
  p { margin-bottom: 1em; }
  ul { list-style-type: disc; margin-left: 20px; margin-bottom: 1em; }
  li { margin-bottom: 0.5em; }
  .faq { background-color: f9f9f9; padding: 1.5rem; border-left: 4px solid 007bff; margin-top: 3rem; }
  .faq h2 { color: 007bff; border-bottom: none; margin-top: 0; padding-bottom: 0; }
  .faq p { margin-bottom: 0.5em; }