:root {
  --deepdoc-hero-width: 920px;
  --deepdoc-aside-width: 260px;
  --deepdoc-code-min: 640px;
}
.deepdoc-hero {
  position: relative;
  max-width: 100%;
  overflow-x: clip;
  padding-top: clamp(72px, 9vw, 112px);
  padding-bottom: clamp(54px, 7vw, 86px);
  border-bottom: 1px solid var(--overlay-line);
  background:
    radial-gradient(circle at 8% 0%, var(--accent-08), var(--color-transparent) 42%),
    radial-gradient(circle at 92% 100%, var(--mist-05), var(--color-transparent) 40%),
    var(--color-bg);
}
.deepdoc-hero::after {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--overlay-soft) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--overlay-soft) 1px, var(--color-transparent) 1px);
  background-size: 48px 48px;
  content: "";
  mask-image: linear-gradient(to bottom, var(--overlay-dark-soft), var(--color-transparent));
  pointer-events: none;
}
.deepdoc-hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--deepdoc-hero-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
  text-align: center;
}
.deepdoc-hero h1 {
  max-width: 820px;
  margin-inline: auto;
}
.deepdoc-hero-lede {
  max-width: 740px;
  margin: 0 auto 24px;
  color: var(--color-muted);
  font-size: 18px;
}
.deepdoc-hero .btn-row {
  justify-content: center;
}
.deepdoc-facts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.deepdoc-facts li {
  min-width: 0;
  padding: 7px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}
.deepdoc-shell {
  padding-top: 42px;
  padding-bottom: var(--section-space);
}
.deepdoc-article {
  width: 100%;
  max-width: var(--reading-width);
  margin-inline: auto;
}
.deepdoc-intro {
  margin-bottom: 28px;
  padding: 24px;
  border: 1px solid var(--overlay-edge);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: inset 0 1px 0 var(--overlay-top);
}
.deepdoc-intro p:last-child {
  margin-bottom: 0;
}
.deepdoc-article .toc-tabs {
  margin-top: 0;
}
.manual-section {
  padding-top: 14px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--overlay-line);
}
.manual-section:last-of-type {
  border-bottom: 0;
}
.manual-section > h2 {
  margin-top: 56px;
}
.manual-section > h3 {
  position: relative;
  padding-left: 18px;
}
.manual-section > h3::before {
  position: absolute;
  top: .42em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}
.manual-section p,
.manual-section li {
  color: var(--color-muted);
}
.manual-section strong {
  color: var(--color-text);
}
.manual-section ol,
.manual-section ul {
  padding-left: 24px;
}
.manual-section li + li {
  margin-top: 9px;
}
.manual-section a:not(.btn) {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.manual-section kbd {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 1px 7px;
  border: 1px solid var(--color-border);
  border-bottom-color: var(--color-dim);
  border-radius: var(--radius-xs);
  background: var(--color-panel-raised);
  color: var(--color-text);
  font-size: 12px;
}
.manual-checklist {
  display: grid;
  gap: 10px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}
.manual-checklist li {
  position: relative;
  padding: 13px 14px 13px 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}
.manual-checklist li::before {
  position: absolute;
  top: 13px;
  left: 14px;
  color: var(--color-success);
  content: "✓";
  font-family: var(--font-mono);
  font-weight: 800;
}
.manual-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 24px 0;
}
.manual-flow div {
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
}
.manual-flow strong {
  display: block;
  margin-bottom: 5px;
  color: var(--color-text);
}
.manual-flow span {
  color: var(--color-muted);
  font-size: 13px;
}
.code-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
}
.code-scroll pre {
  min-width: var(--deepdoc-code-min);
  margin-bottom: 0;
}
.deepdoc-endnote {
  margin-top: 54px;
  padding: 28px;
  border: 1px solid var(--accent-35);
  border-radius: var(--radius-md);
  background: var(--accent-06);
}
.deepdoc-endnote h2 {
  margin-top: 0;
  font-size: clamp(25px, 3vw, 34px);
}
.deepdoc-endnote p:last-child {
  margin-bottom: 0;
}
@media (max-width: 768px) {
  .deepdoc-hero-lede {
    font-size: 16px;
  }
  .manual-flow {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .deepdoc-hero {
    padding-top: 56px;
    padding-bottom: 48px;
  }
  .deepdoc-intro,
  .deepdoc-endnote {
    padding: 20px;
  }
  .deepdoc-facts {
    align-items: stretch;
    flex-direction: column;
  }
  .deepdoc-facts li {
    width: 100%;
  }
}