:root { --nen: #fffdf8; --chu: #1d1d1b; --phu: #6b665e; --do: #e5322d; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --nen: #151514; --chu: #f1efe9; --phu: #a8a39a; } }
body { margin: 0; background: var(--nen); color: var(--chu); font: 17px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 16px 80px; }
h1 { font-size: 32px; line-height: 1.2; margin: 8px 0 20px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
a { color: var(--do); }
.nho { color: var(--phu); font-size: 14px; }
hr { border: 0; border-top: 1px solid #ddd; margin: 40px 0; }