:root { --primary: #6B21A8; --bg: #FAF7F2; --text: #0F0F12; --muted: #6B7280; --danger: #EF4444; --success: #10B981; --warning: #F59E0B; }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; }
    .container { max-width: 720px; margin: 0 auto; padding: 48px 24px; }
    h1 { font-size: 2rem; margin-bottom: 8px; }
    .effective { color: var(--muted); margin-bottom: 32px; }
    h2 { font-size: 1.25rem; margin-top: 32px; margin-bottom: 12px; color: var(--primary); }
    h3 { font-size: 1.1rem; margin-top: 20px; margin-bottom: 8px; }
    p, li { margin-bottom: 12px; }
    ul { padding-left: 24px; }
    a { color: var(--primary); }
    .nav { margin-bottom: 24px; font-size: 0.875rem; }
    .nav a { margin-right: 16px; color: var(--primary); text-decoration: none; }
    .nav a:hover { text-decoration: underline; }
    .footer { margin-top: 64px; padding-top: 24px; border-top: 1px solid #E5E0D8; color: var(--muted); font-size: 0.875rem; }
    .footer a { color: var(--muted); margin-right: 16px; }
    .do-box { background: #ECFDF5; border-left: 4px solid var(--success); padding: 16px; border-radius: 8px; margin: 16px 0; }
    .dont-box { background: #FEF2F2; border-left: 4px solid var(--danger); padding: 16px; border-radius: 8px; margin: 16px 0; }
    .warn-box { background: #FFFBEB; border-left: 4px solid var(--warning); padding: 16px; border-radius: 8px; margin: 16px 0; }
    .box-title { font-weight: 700; margin-bottom: 8px; }
  

/* utility (extracted from inline style=) */
.mt-8 { margin-top: 8px; }