:root{
  --bg:#fff;--surface:#fff;--soft:#f7f9fc;--text:#0f172a;--muted:#667085;
  --line:#e7eaf0;--brand:#2563eb;--brand-soft:#eff6ff;--good:#059669;--warn:#d97706;
  --danger:#dc2626;--code:#0f172a;--code-text:#e5edf8;--shadow:0 14px 42px rgba(15,23,42,.07);
  --header:rgba(255,255,255,.88)
}
html[data-theme="dark"]{
  --bg:#0b0f17;--surface:#111827;--soft:#0f1623;--text:#f8fafc;--muted:#98a2b3;
  --line:#243042;--brand:#60a5fa;--brand-soft:rgba(59,130,246,.12);--good:#34d399;
  --warn:#fbbf24;--danger:#f87171;--code:#060a11;--code-text:#dbeafe;--shadow:none;
  --header:rgba(11,15,23,.88)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.75
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.topbar{
  position:sticky;top:0;z-index:100;background:var(--header);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line)
}
.topbar-inner{
  max-width:1460px;margin:0 auto;padding:11px 24px;display:flex;align-items:center;
  justify-content:space-between;gap:20px
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800}
.brand:hover{text-decoration:none}.brand img{width:34px;height:34px;object-fit:contain}
.brand small{font-size:11px;color:var(--muted);font-weight:650;letter-spacing:.08em;text-transform:uppercase}
.top-actions{display:flex;align-items:center;gap:8px}
.top-link{
  color:var(--muted);padding:8px 10px;border-radius:9px;font-size:13px
}
.top-link:hover{background:var(--soft);color:var(--text);text-decoration:none}
.theme{
  width:38px;height:38px;border:1px solid var(--line);border-radius:11px;background:var(--surface);
  color:var(--text);cursor:pointer;font-size:17px
}
.layout{
  max-width:1460px;margin:0 auto;padding:0 24px;display:grid;
  grid-template-columns:240px minmax(0,1fr);gap:52px
}
.sidebar{
  position:sticky;top:76px;align-self:start;height:calc(100vh - 90px);
  overflow:auto;padding:34px 0
}
.sidebar-title{
  color:var(--muted);font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  margin:18px 10px 8px
}
.sidebar a{
  display:block;color:var(--muted);font-size:14px;padding:7px 10px;border-radius:8px;margin:2px 0
}
.sidebar a:hover,.sidebar a.active{background:var(--soft);color:var(--text);text-decoration:none}
.main{min-width:0;padding:54px 0 100px}
.doc{max-width:1000px}
.eyebrow{font-size:12px;color:var(--brand);font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1{
  margin:10px 0 16px;font-size:clamp(38px,5vw,58px);line-height:1.08;letter-spacing:-2px
}
.lead{font-size:18px;color:var(--muted);max-width:820px;line-height:1.85}
h2{margin:48px 0 14px;font-size:28px;letter-spacing:-.7px}
h3{margin:30px 0 10px;font-size:19px}
p,li{color:var(--muted)}
strong{color:var(--text)}
ul,ol{padding-left:22px}
hr{border:0;border-top:1px solid var(--line);margin:44px 0}
.notice{
  margin:24px 0;padding:18px 20px;border:1px solid color-mix(in srgb,var(--brand) 28%,var(--line));
  background:color-mix(in srgb,var(--brand) 5%,var(--surface));border-radius:14px
}
.notice.warn{border-color:color-mix(in srgb,var(--warn) 34%,var(--line));background:color-mix(in srgb,var(--warn) 6%,var(--surface))}
.notice.danger{border-color:color-mix(in srgb,var(--danger) 32%,var(--line));background:color-mix(in srgb,var(--danger) 5%,var(--surface))}
.notice.good{border-color:color-mix(in srgb,var(--good) 30%,var(--line));background:color-mix(in srgb,var(--good) 5%,var(--surface))}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:24px 0}
.card{
  border:1px solid var(--line);border-radius:15px;background:var(--surface);padding:21px;box-shadow:var(--shadow)
}
.card h3{margin:0 0 7px;font-size:17px}.card p{margin:0;font-size:14px}
.code{
  position:relative;margin:18px 0;background:var(--code);color:var(--code-text);
  border-radius:14px;overflow:auto;border:1px solid rgba(127,127,127,.16)
}
.code pre{margin:0;padding:18px 20px;font:13px/1.65 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre;min-width:max-content}
.code .label{
  padding:8px 12px;border-bottom:1px solid rgba(255,255,255,.10);font-size:11px;
  color:#93a4bb;letter-spacing:.06em;text-transform:uppercase
}
.inline-code{
  font:12.5px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--soft);border:1px solid var(--line);padding:2px 6px;border-radius:6px;color:var(--text)
}
.table-wrap{overflow:auto;margin:20px 0;border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;min-width:680px;background:var(--surface)}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:13.5px;vertical-align:top}
th{background:var(--soft);color:var(--text);font-weight:750}
td{color:var(--muted)}tr:last-child td{border-bottom:0}
.badge{
  display:inline-flex;align-items:center;padding:3px 8px;border-radius:999px;font-size:11px;font-weight:750;
  border:1px solid var(--line);background:var(--soft)
}
.badge.good{color:var(--good)}.badge.warn{color:var(--warn)}.badge.danger{color:var(--danger)}
.steps{counter-reset:step;display:grid;gap:12px;margin:22px 0}
.step{
  position:relative;padding:18px 18px 18px 54px;border:1px solid var(--line);border-radius:13px;background:var(--surface)
}
.step:before{
  counter-increment:step;content:counter(step);position:absolute;left:16px;top:17px;width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;border-radius:8px;background:var(--brand-soft);
  color:var(--brand);font-size:12px;font-weight:800
}
.step strong{display:block;margin-bottom:4px}
.strikes{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:22px 0}
.strike{padding:16px;border:1px solid var(--line);border-radius:13px;background:var(--surface)}
.strike .n{font-size:11px;font-weight:800;color:var(--brand);letter-spacing:.08em}
.strike strong{display:block;margin-top:8px;font-size:15px}
.strike p{font-size:12.5px;margin:6px 0 0}
.footer{border-top:1px solid var(--line);padding:28px 24px;color:var(--muted);font-size:12.5px}
.footer-inner{max-width:1460px;margin:0 auto;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.muted{color:var(--muted)}.small{font-size:12px}
@media(max-width:920px){
  .layout{grid-template-columns:1fr;gap:0;padding:0 18px}
  .sidebar{position:static;height:auto;display:flex;gap:5px;overflow:auto;padding:14px 0;border-bottom:1px solid var(--line)}
  .sidebar-title{display:none}.sidebar a{white-space:nowrap}
  .main{padding-top:34px}.grid{grid-template-columns:1fr}.strikes{grid-template-columns:1fr 1fr}
  .top-link{display:none}
}
@media(max-width:560px){
  .strikes{grid-template-columns:1fr}.topbar-inner{padding:10px 14px}.main{padding-bottom:70px}
}