:root { --bg: #f6f3ec; --fg: #2b2a27; --sub: #6b665c; --line: #e2dccf; --link: #7a5a1e; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #1f1e1b; --fg: #ece7dc; --sub: #a9a395; --line: #3a3832; --link: #e0bb72; }
}
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.85;
       font-family: "Hiragino Sans", "Noto Sans JP", sans-serif; font-size: 15px; }
main { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
header a { color: var(--fg); text-decoration: none; font-weight: 700; letter-spacing: .08em; }
h1 { font-size: 26px; margin: 28px 0 4px; }
.date { color: var(--sub); font-size: 13px; margin: 0 0 28px; }
h2 { font-size: 17px; margin: 32px 0 8px; padding-top: 12px; border-top: 1px solid var(--line); }
ul, ol { padding-left: 1.4em; }
a { color: var(--link); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; vertical-align: top; padding: 12px 8px; border-bottom: 1px solid var(--line); }
th { width: 32%; font-weight: 600; }
footer { margin-top: 48px; color: var(--sub); font-size: 13px; }
footer a { margin-right: 16px; }
@media (max-width: 560px) { th, td { display: block; width: auto; padding: 6px 0; } th { padding-top: 14px; border: 0; } }