:root { color-scheme: light dark; --fg: #1c1c1e; --muted: #6b6b70; --bg: #ffffff; --accent: #ff8a3d; }
@media (prefers-color-scheme: dark) { :root { --fg: #f2f2f7; --muted: #9a9aa0; --bg: #111113; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.7 -apple-system, "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 20px 96px; }
h1 { font-size: 1.7rem; margin: 0 0 4px; }
h2 { font-size: 1.2rem; margin: 40px 0 8px; }
h3 { font-size: 1rem; margin: 24px 0 4px; }
.lede { color: var(--muted); margin: 0 0 8px; }
.lang { color: var(--muted); font-size: .85rem; letter-spacing: .04em; text-transform: uppercase;
  margin: 56px 0 0; border-top: 1px solid color-mix(in srgb, var(--muted) 30%, transparent); padding-top: 8px; }
a { color: var(--accent); }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: .95rem; }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid color-mix(in srgb, var(--muted) 25%, transparent); vertical-align: top; }
footer { color: var(--muted); font-size: .85rem; margin-top: 64px; }