.deepdoc-hero {
  position: relative;
  padding-top: clamp(48px, 7vw, 82px);
  padding-bottom: clamp(42px, 6vw, 72px);
  overflow-x: clip;
  border-bottom: 1px solid var(--color-border);
}

.deepdoc-hero::before {
  position: absolute;
  top: -22%;
  right: -8%;
  width: min(64vw, 780px);
  height: min(64vw, 780px);
  border-radius: var(--radius-pill);
  background: radial-gradient(circle, var(--color-accent-soft), transparent 68%);
  content: "";
  pointer-events: none;
}

.deepdoc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(34px, 6vw, 78px);
  align-items: center;
}

.deepdoc-hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.deepdoc-hero h1 {
  max-width: 650px;
  margin-top: 20px;
  margin-bottom: 18px;
  font-size: clamp(52px, 5vw, 68px);
}

.deepdoc-lead {
  max-width: 620px;
  margin-bottom: 24px;
  font-size: 17px;
}

.deepdoc-map {
  position: relative;
  min-width: 0;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px),
    var(--color-panel);
  background-size: 28px 28px, 28px 28px, auto;
  box-shadow: var(--shadow-panel);
}

.deepdoc-map::after {
  position: absolute;
  right: -54px;
  bottom: -54px;
  width: 160px;
  height: 160px;
  border: 1px dashed var(--color-accent-medium);
  border-radius: var(--radius-pill);
  content: "";
  pointer-events: none;
}

.deepdoc-map-head {
  display: flex;
  min-width: 0;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.deepdoc-map svg {
  width: 100%;
  height: auto;
  margin-block: 12px;
}

.deepdoc-route-line.is-secondary {
  stroke: var(--color-text-muted);
  opacity: 0.48;
}

.deepdoc-node {
  fill: var(--color-panel-raised);
  stroke: var(--color-accent);
  stroke-width: 3;
}

.deepdoc-node.is-core {
  fill: var(--color-accent);
  stroke: var(--color-on-accent);
}

.deepdoc-map-labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.deepdoc-map-labels span {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 3px 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-text-muted);
  background: var(--color-panel-raised);
  font-family: var(--font-mono);
  font-size: 10px;
}

.deepdoc-article {
  overflow: visible;
}

.deepdoc-layout {
  max-width: 1040px;
}

.deepdoc-intro {
  max-width: var(--reading-max);
  margin-bottom: 30px;
}

.deepdoc-intro h2 {
  font-size: clamp(30px, 4vw, 42px);
}

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

.deepdoc-content {
  max-width: var(--reading-max);
}

.deepdoc-chapter {
  padding-top: clamp(46px, 7vw, 76px);
  padding-bottom: clamp(46px, 7vw, 76px);
  border-bottom: 1px solid var(--color-border);
}

.deepdoc-chapter:first-child {
  padding-top: 26px;
}

.deepdoc-chapter:last-of-type {
  border-bottom: 0;
}

.deepdoc-chapter h2 {
  margin-bottom: 28px;
}

.deepdoc-chapter h3 {
  margin-top: 32px;
}

.deepdoc-chapter p {
  font-size: 16px;
  line-height: 1.82;
}

.deepdoc-chapter .table-scroll {
  margin-top: 28px;
  margin-bottom: 28px;
}

.deepdoc-chapter pre {
  margin-top: 25px;
  margin-bottom: 25px;
}

.deepdoc-chapter code {
  line-height: 1.7;
}

.deepdoc-chapter .callout {
  margin-top: 28px;
  margin-bottom: 28px;
}

.deepdoc-content .promo-block {
  max-width: 100%;
}

@media (max-width: 900px) {
  .deepdoc-hero-grid {
    grid-template-columns: 1fr;
  }

  .deepdoc-map {
    max-width: 720px;
  }
}

@media (max-width: 768px) {
  .deepdoc-hero {
    padding-top: 42px;
  }

  .deepdoc-hero h1 {
    font-size: clamp(28px, 9.5vw, 40px);
  }

  .deepdoc-map {
    display: none;
  }

  .deepdoc-lead {
    font-size: 16px;
  }

  .deepdoc-chapter p {
    font-size: 15px;
    line-height: 1.76;
  }

  .deepdoc-chapter h3 {
    margin-top: 27px;
  }
}

@media (max-width: 520px) {
  .deepdoc-map-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .deepdoc-chapter {
    padding-top: 44px;
    padding-bottom: 44px;
  }

  .deepdoc-content pre {
    padding: 15px;
  }
}