:root { --fg: #1a1a1c; --muted: #5c5c66; --line: #d8d8dc; --key: #8b1e2d; --bg: #ffffff; --soft: #f4f4f5; }
@media (prefers-color-scheme: dark) {
  :root { --fg: #f2f2f4; --muted: #a8a8b0; --line: #3a3a40; --key: #e07a88; --bg: #141416; --soft: #1e1e22; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.8 "Noto Sans JP", system-ui, -apple-system, "Hiragino Sans", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
header img { width: 44px; height: 44px; border-radius: 10px; }
header a { color: var(--fg); text-decoration: none; font-weight: 700; font-size: 18px; }
h1 { font-size: 26px; line-height: 1.4; margin: 0 0 8px; }
h2 { font-size: 19px; margin: 36px 0 8px; padding-top: 16px; border-top: 1px solid var(--line); }
p, li { overflow-wrap: anywhere; }
a { color: var(--key); }
.muted { color: var(--muted); font-size: 14px; }
.note { background: var(--soft); border-radius: 8px; padding: 12px 16px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; padding: 8px; border-bottom: 1px solid var(--line); min-width: 120px; }
nav.links { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 14px; }