.deepdoc-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(circle at 82% 18%, var(--color-pink-soft), transparent 28%),
    radial-gradient(circle at 14% 74%, var(--color-blue-soft), transparent 30%),
    var(--color-page);
  color: var(--color-ink);
  padding-top: clamp(64px, 9vw, 104px);
  padding-bottom: clamp(54px, 8vw, 88px);
}

.deepdoc-hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.55fr);
  align-items: end;
  gap: clamp(28px, 6vw, 78px);
}

.deepdoc-hero-copy {
  max-width: 780px;
  min-width: 0;
}

.deepdoc-hero .subtitle {
  margin-bottom: 1.6rem;
}

.deepdoc-scope {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
  box-shadow: var(--shadow-raised);
  padding: clamp(20px, 3vw, 30px);
}

.manual-intro {
  display: grid;
  gap: 34px;
}

.manual-intro > .prose {
  max-width: 920px;
  font-size: 1.03rem;
}

.deepdoc-toc {
  top: 12px;
}

.deepdoc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 290px);
  align-items: start;
  gap: clamp(30px, 6vw, 72px);
}

.deepdoc-prose {
  max-width: 850px;
}

.deepdoc-prose > h2:first-child {
  margin-top: 0;
}

.deepdoc-prose h2 {
  border-top: 1px solid var(--color-border);
  padding-top: 3.5rem;
}

.deepdoc-prose h2::after {
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-accent), var(--color-orange));
  content: "";
}

.deepdoc-prose h3 {
  color: var(--color-ink);
}

.deepdoc-prose p {
  text-align: justify;
  text-justify: inter-ideograph;
}

.deepdoc-prose .callout,
.deepdoc-prose .table-scroll,
.deepdoc-prose pre {
  margin-top: 1.8rem;
  margin-bottom: 1.8rem;
}

.deepdoc-prose .data-table {
  display: table;
}

.deepdoc-rail {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 18px;
}

.deepdoc-rail .panel {
  padding: 24px;
}

.deepdoc-rail h3 {
  font-size: 1.1rem;
}

.deepdoc-rail ol {
  margin-bottom: 0;
  padding-left: 1.2rem;
  color: var(--color-ink-soft);
  font-size: 0.9rem;
}

.deepdoc-rail li + li {
  margin-top: 0.55rem;
}

.deepdoc-links a {
  display: block;
  min-height: 42px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-ink-soft);
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
  text-decoration: none;
}

.deepdoc-links a:hover {
  color: var(--color-accent-deep);
}

@media (max-width: 980px) {
  .deepdoc-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .deepdoc-prose {
    max-width: none;
  }

  .deepdoc-rail {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .deepdoc-hero .wrap {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }

  .deepdoc-scope {
    max-width: 580px;
  }

  .deepdoc-prose p {
    text-align: left;
  }

  .deepdoc-prose h2 {
    padding-top: 2.7rem;
  }
}

@media (max-width: 640px) {
  .deepdoc-rail {
    grid-template-columns: minmax(0, 1fr);
  }

  .deepdoc-prose .data-table {
    display: table;
    min-width: 680px;
  }

  .deepdoc-scope .fact-pill {
    width: 100%;
    justify-content: center;
  }
}