:root { color-scheme: light dark; }
body { margin: 0; font-family: -apple-system, system-ui, "Segoe UI", sans-serif; line-height: 1.6; color: #16131F; background: #fff; }
@media (prefers-color-scheme: dark) { body { color: #F5F3FA; background: #18171F; } .box, .note { background: #22202B !important; } }
main { max-width: 720px; margin: 0 auto; padding: 20px 16px 48px; }
h1 { font-size: 26px; margin: 0 0 4px; } h2 { font-size: 18px; margin: 28px 0 8px; } h3 { font-size: 15px; margin: 16px 0 6px; }
.meta { color: #8a8698; font-size: 13px; margin: 0 0 16px; }
.box { background: #F6F5F2; border-radius: 12px; padding: 12px 14px; }
.note { background: #FFF3C4; border-radius: 12px; padding: 10px 14px; font-size: 13px; }
a { color: #E8336E; } ul { padding-left: 20px; } li { margin: 4px 0; }
.ph { background: #FFE08A; color: #16131F; border-radius: 4px; padding: 0 4px; font-weight: 600; }
.chg { font-size: 12px; color: #8a8698; }