.cp-page{
  --cp-surface:rgba(255,255,255,.92);
  --cp-border:#edf2f7;
  --cp-text:#111827;
  --cp-text-soft:#6b7280;
  --cp-muted:#a0aec0;
  --cp-accent:#60a5fa;
  --cp-shadow:0 14px 40px rgba(15,23,42,.04);
  color:var(--cp-text);
  background:
    radial-gradient(720px 360px at 0% 0%, rgba(219,234,254,.14), rgba(219,234,254,0) 62%),
    linear-gradient(180deg, #fbfcfe 0%, #f7f9fc 100%);
  padding:34px 0 88px;
}

.cp-page *{box-sizing:border-box}
.cp-shell{max-width:1140px;margin:0 auto;padding:0 24px}

.cp-layout{
  display:flex;
  align-items:flex-start;
  justify-content:center;
  gap:46px;
  max-width:1080px;
  margin:0 auto;
}

.cp-sidebar{
  position:sticky;
  top:30px;
  flex:0 0 226px;
  display:grid;
  gap:18px;
  align-content:start;
}

.cp-sidebar-intro{
  padding-left:12px;
}

.cp-kicker{
  margin:0;
  color:#c0c7d2;
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
}

.cp-title{
  margin:4px 0 3px;
  color:var(--cp-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:18px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.01em;
}

.cp-updated{
  margin:0;
  color:#a0aec0;
  font-size:11px;
  line-height:1.6;
  font-weight:600;
}

.cp-toc{
  display:grid;
  gap:0;
  border-left:1px solid #e7edf4;
}

.cp-toc-link{
  display:flex;
  align-items:flex-start;
  gap:8px;
  padding:10px 0 10px 14px;
  border-left:2px solid transparent;
  color:#4b5563;
  text-decoration:none;
  transition:border-color .18s ease, color .18s ease;
}

.cp-toc-link:hover,
.cp-toc-link:focus-visible{
  color:#2563eb;
  border-left-color:var(--cp-accent);
  outline:none;
}

.cp-toc-index{
  flex:0 0 auto;
  color:#6b7280;
  font-size:13px;
  font-weight:600;
  line-height:1.5;
}

.cp-toc-text{
  display:block;
  font-size:13px;
  line-height:1.55;
  font-weight:600;
}

.cp-document{
  min-width:0;
  flex:1 1 0;
  max-width:700px;
  border:1px solid var(--cp-border);
  border-radius:20px;
  background:var(--cp-surface);
  box-shadow:var(--cp-shadow);
  overflow:hidden;
}

.cp-mobile-head{
  display:none;
}

.cp-prose,
.cp-empty{
  padding:34px 40px 40px;
}

.cp-empty{
  min-height:320px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.cp-empty-kicker{
  color:#a0aec0;
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
}

.cp-empty h2{
  margin:12px 0 10px;
  color:var(--cp-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:28px;
  line-height:1.25;
  font-weight:700;
}

.cp-empty p{
  max-width:720px;
  margin:0;
  color:var(--cp-text-soft);
  font-size:15px;
  line-height:1.9;
}

.cp-prose{
  counter-reset:cp-section;
  color:var(--cp-text-soft);
  font-size:15px;
  line-height:1.92;
}

.cp-prose > *:first-child{margin-top:0}
.cp-prose > *:last-child{margin-bottom:0}

.cp-prose h1,
.cp-prose h2,
.cp-prose h3,
.cp-prose h4{
  color:var(--cp-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  letter-spacing:-.01em;
}

.cp-prose h1{
  margin:0 0 16px;
  font-size:28px;
  line-height:1.2;
  font-weight:700;
}

.cp-prose h2{
  scroll-margin-top:96px;
  counter-increment:cp-section;
  margin:1.9em 0 .78em;
  font-size:19px;
  line-height:1.45;
  font-weight:700;
}

.cp-prose h2::before{
  content:counter(cp-section) ". ";
}

.cp-prose h3{
  margin:1.35em 0 .55em;
  font-size:16px;
  line-height:1.5;
  font-weight:700;
}

.cp-prose h4{
  margin:1.2em 0 .45em;
  font-size:15px;
  line-height:1.5;
  font-weight:700;
}

.cp-prose p,
.cp-prose ul,
.cp-prose ol,
.cp-prose blockquote,
.cp-prose table{
  margin:1em 0;
}

.cp-prose ul,
.cp-prose ol{
  padding-left:1.35em;
}

.cp-prose li + li{
  margin-top:.5em;
}

.cp-prose strong{
  color:var(--cp-text);
  font-weight:700;
}

.cp-prose blockquote{
  margin:1.35em 0;
  padding:12px 16px;
  border-left:4px solid #3b82f6;
  background:#eff6ff;
  color:#5b79ad;
  font-size:14px;
  line-height:1.8;
}

.cp-prose a{
  color:#2563eb;
  text-decoration:none;
  border-bottom:1px solid rgba(37,99,235,.22);
  transition:border-color .18s ease, color .18s ease;
}

.cp-prose a:hover,
.cp-prose a:focus-visible{
  color:#1d4ed8;
  border-bottom-color:rgba(29,78,216,.42);
  outline:none;
}

.cp-prose img{
  display:block;
  max-width:100%;
  height:auto;
  border:1px solid #edf2f7;
  border-radius:16px;
}

.cp-prose table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
}

.cp-prose th,
.cp-prose td{
  padding:12px 14px;
  border:1px solid #edf2f7;
  text-align:left;
}

@media (max-width: 1024px){
  .cp-shell{padding:0 18px}
  .cp-layout{
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    max-width:720px;
  }

  .cp-sidebar{
    position:static;
    flex:none;
  }

  .cp-sidebar-intro{
    padding-left:0;
  }

  .cp-toc{
    border-left:none;
    gap:8px;
  }

  .cp-toc-link{
    padding:12px 14px;
    border:1px solid #e7edf4;
    border-radius:14px;
    background:rgba(255,255,255,.86);
  }
}

@media (max-width: 768px){
  .cp-page{padding:20px 0 64px}
  .cp-shell{padding:0 16px}
  .cp-sidebar{display:none}
  .cp-document{
    max-width:none;
    border-radius:18px;
  }
  .cp-mobile-head{
    display:block;
    padding:20px 22px 0;
  }
  .cp-kicker-mobile{
    display:block;
  }
  .cp-document-title{
    margin:4px 0 3px;
    color:var(--cp-text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:20px;
    line-height:1.35;
    font-weight:700;
  }
  .cp-updated-mobile{
    display:block;
  }
  .cp-prose,
  .cp-empty{padding:22px 22px 26px}
  .cp-empty h2{font-size:24px}
  .cp-prose{font-size:14px}
  .cp-prose h1{font-size:24px}
  .cp-prose h2{font-size:18px}
  .cp-prose h3{font-size:15px}
}

@media (prefers-reduced-motion: reduce){
  .cp-toc-link,
  .cp-prose a{
    transition:none;
  }
}