.deepdoc-hero {
  padding-top: 82px;
  padding-bottom: 72px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.deepdoc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 56px;
  align-items: end;
}

.deepdoc-hero-copy {
  max-width: 820px;
}

.deepdoc-hero-copy .lead {
  max-width: 760px;
  margin-bottom: 0;
}

.deepdoc-scope {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  padding: 26px;
  box-shadow: var(--shadow-1);
}

.deepdoc-scope p:last-child {
  margin-bottom: 0;
}

.deepdoc-scope-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.deepdoc-scope-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.deepdoc-scope-list li::before {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
  content: "";
}

.deepdoc-body {
  padding-top: 64px;
  padding-bottom: var(--section-space);
}

.deepdoc-intro {
  margin-bottom: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  padding: 32px;
}

.deepdoc-intro p:last-child {
  margin-bottom: 0;
}

.deepdoc-chapter {
  scroll-margin-top: calc(var(--nav-height) + 24px);
  padding-top: 74px;
  padding-bottom: 74px;
  border-top: 1px solid var(--color-border);
}

.deepdoc-chapter:first-of-type {
  border-top: 0;
}

.deepdoc-chapter-head {
  max-width: 760px;
  margin-bottom: 38px;
}

.deepdoc-chapter-head .mono-label {
  margin-bottom: 10px;
}

.deepdoc-chapter h3 {
  margin-top: 42px;
}

.deepdoc-chapter h3:first-of-type {
  margin-top: 0;
}

.deepdoc-chapter p,
.deepdoc-chapter li {
  color: var(--color-text-muted);
}

.deepdoc-chapter strong {
  color: var(--color-text);
}

.deepdoc-chapter ol,
.deepdoc-chapter ul {
  margin-bottom: 24px;
}

.deepdoc-chapter li + li {
  margin-top: 8px;
}

.deepdoc-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0;
  padding: 0;
  list-style: none;
}

.deepdoc-flow li {
  position: relative;
  min-width: 0;
  margin: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  padding: 18px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 700;
}

.deepdoc-flow li::after {
  position: absolute;
  top: 50%;
  right: -9px;
  width: 8px;
  border-top: 1px dashed var(--color-accent);
  content: "";
}

.deepdoc-flow li:last-child::after {
  display: none;
}

.deepdoc-flow span {
  display: block;
  margin-bottom: 7px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.deepdoc-table {
  display: block;
  max-width: 100%;
  margin: 28px 0;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  -webkit-overflow-scrolling: touch;
}

.deepdoc-table table {
  min-width: 700px;
}

.deepdoc-table th {
  font-size: 13px;
}

.deepdoc-table td {
  color: var(--color-text-muted);
  font-size: 14px;
}

.deepdoc-code-caption {
  margin: 30px 0 8px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.deepdoc-next {
  margin-top: 54px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  padding: 30px;
}

.deepdoc-next p:last-child {
  margin-bottom: 0;
}

.deepdoc-next a,
.deepdoc-intro a,
.deepdoc-chapter a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 960px) {
  .deepdoc-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .deepdoc-scope {
    max-width: 620px;
  }

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

  .deepdoc-flow li:nth-child(2)::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .deepdoc-hero {
    padding-top: 52px;
    padding-bottom: 52px;
  }

  .deepdoc-body {
    padding-top: 42px;
  }

  .deepdoc-intro,
  .deepdoc-scope,
  .deepdoc-next {
    padding: 22px 18px;
  }

  .deepdoc-chapter {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .deepdoc-flow {
    grid-template-columns: minmax(0, 1fr);
  }

  .deepdoc-flow li::after {
    display: none;
  }
}