:root{--fg:#0C0C0E;--muted:#6E6E78;--line:#E4E4E8;--bg:#FFFFFF;--accent:#E9A23B;color-scheme:light}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--fg);font-family:"Geist",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
header{max-width:760px;margin:0 auto;padding:22px 20px;display:flex;justify-content:space-between;align-items:center;gap:16px;border-bottom:1px solid var(--line)}
.wm{display:inline-block;font-weight:600;letter-spacing:-.05em;line-height:1;white-space:nowrap;font-size:2rem;color:var(--fg);text-decoration:none}
.wm svg{display:inline-block;height:.562em;width:calc(.562em * 38 / 41);vertical-align:-.015em;margin-left:.05em;color:currentColor}
nav{display:flex;gap:18px;font-size:.92rem}
nav a{color:var(--muted);text-decoration:none}
nav a[aria-current]{color:var(--fg);font-weight:500}
main{max-width:760px;margin:0 auto;padding:36px 20px 40px}
h1{font-size:clamp(1.9rem,5vw,2.6rem);font-weight:600;letter-spacing:-.035em;line-height:1.1;margin:0 0 6px}
.data{color:var(--muted);margin:0 0 28px;font-size:.92rem}
h2{font-size:1.15rem;font-weight:600;letter-spacing:-.01em;margin:32px 0 8px}
p,li{color:#2A2A30}
ul{padding-left:20px}
li{margin-bottom:6px}
a{color:#9A6206}
mark{background:#FDF3E2;color:#7A4E05;padding:1px 5px;border-radius:4px}
footer{max-width:760px;margin:0 auto;padding:22px 20px 40px;border-top:1px solid var(--line);color:var(--muted);font-size:.88rem}