:root{--fg:#111418;--muted:#5b6470;--bg:#ffffff;--panel:#f5f7f9;--line:#dde2e7;--accent:#0b5cff;--danger:#b42318;--ok:#067647;color-scheme:light}*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--fg);background:var(--bg)}a{color:var(--accent)}footer.site,header.site{max-width:1040px;margin:0 auto;padding:18px 20px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}header.site .brand{font-weight:700;color:var(--fg);text-decoration:none;margin-right:auto}header.site nav a{margin-left:16px;color:var(--muted);text-decoration:none}footer.site{font-size:14px;border-top:1px solid var(--line);margin-top:48px}footer.site,footer.site a{color:var(--muted)}main{max-width:1040px;margin:0 auto;padding:0 20px}.hero{padding:56px 0 32px}.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.15;margin:0 0 14px;letter-spacing:-.02em}.hero p{font-size:19px;color:var(--muted);max-width:680px}.cta{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.btn{display:inline-block;padding:10px 18px;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:#fff;text-decoration:none;font-weight:600;cursor:pointer;font-size:15px}.btn.secondary{background:#fff;color:var(--accent)}.btn.danger{background:#fff;color:var(--danger);border-color:var(--danger)}.btn.small{padding:4px 10px;font-size:13px;font-weight:500}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:28px 0}.card{border:1px solid var(--line);border-radius:10px;padding:18px;background:#fff}.card h3{margin:0 0 6px;font-size:17px}.card p{margin:0;color:var(--muted);font-size:15px}pre{background:#0f1720;color:#e6edf3;padding:16px;border-radius:10px;overflow-x:auto;font-size:13.5px;line-height:1.5}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em}li code,p code,td code{background:var(--panel);padding:1px 5px;border-radius:4px}table{border-collapse:collapse;width:100%;font-size:14px}td,th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--muted)}label,th{font-weight:600}label{display:block;font-size:14px;margin:12px 0 4px}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit}.muted{color:var(--muted)}.notice{background:#fff8e6;border:1px solid #f5d48a;padding:10px 14px;border-radius:8px;font-size:14px}.error{color:var(--danger)}.okc{color:var(--ok)}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:20px 0;flex-wrap:wrap}.tabs button{background:none;padding:10px 14px;cursor:pointer;font:inherit;color:var(--muted);border:none;border-bottom:2px solid transparent}.tabs button.active{color:var(--fg);border-bottom-color:var(--accent);font-weight:600}.policy-sentence dt{color:var(--muted);font-size:13px;margin-top:8px}.policy-sentence dd{margin:0;font-weight:600}.token{word-break:break-all;background:var(--panel);padding:10px;border-radius:8px;font-family:ui-monospace,monospace}.prose{max-width:760px}