body {
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', sans-serif;
  max-width: 680px; margin: 40px auto; padding: 0 20px;
  color: #333; line-height: 1.8;
}
h1 { color: #00506E; font-size: 22px; }
h2 { font-size: 16px; margin-top: 30px; border-left: 4px solid #00506E; padding-left: 10px; }
p, li { margin: 8px 0; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 14px; }
th, td { border: 1px solid #ccd; padding: 8px 10px; text-align: left; }
th { background: #eef4f7; }
.note { background: #f5f7fa; border-radius: 8px; padding: 12px 16px; font-size: 14px; }
.footer { margin-top: 48px; color: #999; font-size: 0.85em; border-top: 1px solid #eee; padding-top: 16px; }
a { color: #00506E; }