:root{
  --bg:#F9FAFB;--ink:#1B1340;--ink-2:#4F4A6B;--line:#E3E1EE;--purple:#6D4AFF;--purple-deep:#5A38E6;--purple-soft:#EEEAFF;
  --font:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,"SF Pro Display",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;font-optical-sizing:auto}
img{display:block;max-width:100%}
a{color:var(--purple-deep);text-underline-offset:3px}
a:hover{color:var(--purple)}
:focus-visible{outline:3px solid var(--purple);outline-offset:3px;border-radius:6px}
.wrap{width:min(1180px,100% - 48px);margin-inline:auto}

.top{border-bottom:1px solid var(--line);background:#fff}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.top img{height:32px;width:auto}
.back{display:inline-flex;align-items:center;gap:8px;font-size:.95rem;font-weight:600;text-decoration:none;color:var(--ink-2)}
.back:hover{color:var(--ink)}
.back svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.doc{width:min(720px,100% - 48px);margin:72px auto 96px}
.doc h1{font-size:clamp(2rem,4vw,2.8rem);line-height:1.08;letter-spacing:-.03em;font-weight:720;text-wrap:balance}
.updated{margin-top:12px;color:var(--ink-2);font-size:.95rem}
.lead{margin-top:28px;font-size:1.12rem;color:var(--ink-2);text-wrap:pretty}
.doc h2{margin-top:48px;font-size:1.35rem;line-height:1.25;letter-spacing:-.015em;font-weight:680}
.doc p,.doc li{margin-top:12px;color:var(--ink-2);text-wrap:pretty}
.doc ul{margin-top:8px;padding-left:1.2em}
.doc li{margin-top:8px;padding-left:4px}
.doc li::marker{color:var(--purple)}
.doc strong{color:var(--ink);font-weight:650}
.note{margin-top:28px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink-2);font-size:.95rem}

footer{border-top:1px solid var(--line);padding-block:32px 44px;font-size:14px;color:var(--ink-2)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between}
footer nav{display:flex;gap:20px}
footer a{color:var(--ink-2)}
footer a:hover{color:var(--ink)}

@media (max-width:560px){body{font-size:16px}.doc{margin-block:48px 72px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}