body { font-family: -apple-system, "Segoe UI", Arial, sans-serif; color: #1f2937; line-height: 1.7; max-width: 800px; margin: 0 auto; padding: 24px 16px; }
  h1 { font-size: 1.9em; line-height: 1.3; margin-bottom: 8px; }
  h2 { font-size: 1.35em; margin-top: 2em; border-bottom: 2px solid #e5e7eb; padding-bottom: 6px; }
  h3 { font-size: 1.05em; margin-bottom: 4px; }
  p, li { font-size: 1em; }
  ul { padding-left: 1.4em; }
  table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 0.95em; }
  th, td { border: 1px solid #d1d5db; padding: 8px 10px; text-align: left; vertical-align: top; }
  th { background: #f3f4f6; }
  blockquote { border-left: 4px solid #6366f1; margin: 1em 0; padding: 6px 14px; background: #f9fafb; color: #374151; }
  .meta { color: #6b7280; font-size: 0.9em; margin-bottom: 24px; }
  .faq { margin: 1em 0; }
  .faq h3 { cursor: default; }
  .faq p { margin-top: 2px; }
  footer { margin-top: 3em; padding-top: 1em; border-top: 1px solid #e5e7eb; color: #6b7280; font-size: 0.9em; }
  .source-list { font-size: 0.9em; color: #4b5563; }