:root{--fg:#1b1b1f;--muted:#5f6368;--bg:#fff;--line:#e3e3e8;--accent:#1d7a3a}
@media (prefers-color-scheme:dark){:root{--fg:#ececf1;--muted:#a0a3ad;--bg:#121316;--line:#2a2b31;--accent:#5ec27a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.8 -apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",sans-serif}
header,main,footer{max-width:760px;margin:0 auto;padding:0 16px}
header{padding:24px 16px 8px;border-bottom:1px solid var(--line)}header a{color:var(--fg);text-decoration:none;font-weight:700}
header nav a{font-weight:400;color:var(--muted);margin-left:14px;font-size:14px}
main{padding:24px 16px 48px}h1{font-size:24px;margin:0 0 16px}h2{font-size:18px;margin:32px 0 8px;border-left:4px solid var(--accent);padding-left:10px}
table{border-collapse:collapse;width:100%;font-size:15px}th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}th{width:32%;background:rgba(127,127,127,.06)}
.muted{color:var(--muted);font-size:14px}footer{padding:16px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.hero{padding:40px 0}.hero p{font-size:18px}.badge{display:inline-block;border:1px solid var(--line);border-radius:8px;padding:8px 14px;margin-top:12px}