:root{
  --bg:#f7f8fb; --panel:#ffffff; --ink:#141821; --muted:#5a6272; --line:#dfe3ec;
  --accent:#1f4fd8; --accent-soft:#e8eefc; --code:#0f1729; --code-ink:#e6ebf5;
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#0d1119; --panel:#131924; --ink:#e8ebf2; --muted:#9aa4b8; --line:#242c3b;
         --accent:#7aa2ff; --accent-soft:#18213a; --code:#0a0f18; --code-ink:#dbe3f2; }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:900px;margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-999px;top:0;background:var(--panel);padding:8px 14px;z-index:9}
.skip:focus{left:12px;top:12px}
.site-head{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--panel) 88%,transparent);
  backdrop-filter:saturate(1.4) blur(8px);position:sticky;top:0;z-index:5}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{text-decoration:none}
.mark{width:30px;height:30px;border-radius:8px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text strong{font-size:15px;letter-spacing:.2px}
.brand-text span{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.14em}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav-link{padding:6px 10px;border-radius:7px;color:var(--muted);font-size:14px}
.nav-link:hover{background:var(--accent-soft);color:var(--accent);text-decoration:none}
.nav-link.is-active{background:var(--accent-soft);color:var(--accent);font-weight:600}
main{padding:38px 0 26px}
.hero{padding:16px 0 8px;border-bottom:1px solid var(--line);margin-bottom:28px}
.kicker{margin:0 0 10px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:700}
h1{font-size:clamp(28px,4.2vw,42px);line-height:1.15;margin:0 0 14px;letter-spacing:-.02em}
h2{font-size:21px;margin:34px 0 10px;letter-spacing:-.01em}
h3{font-size:17px;margin:24px 0 8px}
.lead{font-size:18px;color:var(--muted);margin:0 0 14px;max-width:70ch}
.meta{font-size:13px;color:var(--muted)}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:18px;display:flex;gap:8px}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:26px 0 8px}
.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;
  color:var(--ink);transition:border-color .15s ease, transform .15s ease}
.card:hover{border-color:var(--accent);transform:translateY(-1px);text-decoration:none}
.card-num{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.12em}
.card h2{font-size:18px;margin:6px 0 6px}
.card p{margin:0;color:var(--muted);font-size:14px}
.section{margin:34px 0}
.section h2{margin-top:0}
ul,ol{padding-left:22px}
li{margin:6px 0}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14.5px;background:var(--panel);
  border:1px solid var(--line);border-radius:10px;overflow:hidden}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--accent-soft);color:var(--ink);font-weight:600}
tr:last-child td{border-bottom:0}
code{font:13.5px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--accent-soft);
  padding:1px 5px;border-radius:4px}
pre{background:var(--code);color:var(--code-ink);padding:16px 18px;border-radius:12px;overflow:auto;margin:18px 0}
pre code{background:none;padding:0;color:inherit}
.note{border-left:3px solid var(--accent);background:var(--panel);border-radius:0 10px 10px 0;
  padding:14px 16px;margin:22px 0;font-size:15px;color:var(--ink)}
.changelog{list-style:none;padding:0;margin:0}
.changelog li{display:flex;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line);color:var(--muted)}
.changelog li:last-child{border-bottom:0}
.changelog time{color:var(--accent);font-size:13px;min-width:130px}
.facts{display:grid;grid-template-columns:max-content 1fr;gap:8px 18px;margin:20px 0}
.facts dt{color:var(--muted);font-size:14px}
.facts dd{margin:0}
.site-foot{border-top:1px solid var(--line);margin-top:40px;padding:22px 0 34px;color:var(--muted);font-size:13.5px}
.foot-row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-row p{margin:0}
.foot-links{display:flex;gap:16px}
@media (max-width:640px){
  .cards{grid-template-columns:1fr}
  .head-row{padding:10px 0}
  main{padding-top:24px}
  .changelog li{flex-direction:column;gap:2px}
}