.deepdoc-hero {
  position: relative;
  overflow: hidden;
  padding-top: 82px;
  padding-bottom: 88px;
  background:
    radial-gradient(760px 520px at 82% 18%, var(--color-accent-a20), var(--color-transparent) 66%),
    radial-gradient(860px 600px at 8% 100%, var(--color-accent-dark-a34), var(--color-transparent) 68%),
    var(--color-night);
}

.deepdoc-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-muted-a09) 1px, var(--color-transparent) 1px),
    linear-gradient(90deg, var(--color-muted-a09) 1px, var(--color-transparent) 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(90deg, var(--color-transparent), var(--color-night), var(--color-transparent));
}

.deepdoc-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 560px);
  align-items: center;
  gap: 72px;
}

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

.deepdoc-hero h1 {
  max-width: 760px;
  margin-bottom: 24px;
  color: var(--color-text);
  font-size: clamp(36px, 4vw, 48px);
  line-height: 1.08;
}

.deepdoc-lead {
  max-width: 44em;
  margin-bottom: 28px;
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.9;
}

.deepdoc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  margin-bottom: 30px;
}

.deepdoc-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.deepdoc-facts span {
  max-width: 100%;
  overflow: hidden;
  padding: 6px 11px;
  color: var(--color-text-muted);
  background: var(--color-panel-a50);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
}

.protocol-map {
  position: relative;
  min-width: 0;
  padding: 1px;
  background: linear-gradient(145deg, var(--color-accent-dark), var(--color-accent), var(--color-cyan));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-deep), var(--shadow-glow);
}

.protocol-map::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: -34px;
  pointer-events: none;
  background: radial-gradient(closest-side, var(--color-accent-a20), var(--color-transparent));
  border-radius: var(--radius-pill);
}

.protocol-map-head {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 8px;
  padding-inline: 16px;
  color: var(--color-text-muted);
  background: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
  border-radius: 13px 13px 0 0;
}

.protocol-map-head code {
  margin-left: 8px;
  font-size: 12px;
}

.protocol-map-body {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 26px;
  overflow: hidden;
  background: var(--color-night-a98);
}

.protocol-map-axis {
  position: absolute;
  top: 28px;
  bottom: 28px;
  left: 47px;
  width: 1px;
  background: linear-gradient(var(--color-accent), var(--color-cyan));
  box-shadow: 0 0 12px var(--color-accent-a52);
}

.protocol-node {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  min-height: 52px;
  padding: 10px 14px 10px 32px;
  color: var(--color-text-muted);
  background: var(--color-panel-a74);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.protocol-node::before {
  content: '';
  position: absolute;
  left: 15px;
  width: 8px;
  height: 8px;
  background: var(--color-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-accent-a52);
}

.protocol-node code {
  color: var(--color-code-key);
  font-weight: 800;
}

.protocol-node span {
  font-size: 12px;
}

.protocol-node-highlight {
  border-color: var(--color-lime);
  box-shadow: 0 0 24px var(--color-lime-a22);
}

.protocol-node-highlight code {
  color: var(--color-night);
  background: var(--color-lime);
  border-radius: var(--radius-xs);
  padding: 3px 7px;
}

.protocol-map-note {
  margin-bottom: 0;
  padding: 17px 20px;
  color: var(--color-text-muted);
  background: var(--color-panel);
  border-radius: 0 0 13px 13px;
  font-size: 13px;
}

.protocol-map-note strong {
  color: var(--color-lime);
}

.deepdoc-intro {
  padding-bottom: 34px;
}

.deepdoc-intro-title {
  margin-bottom: 20px;
}

.deepdoc-intro a,
.deepdoc-article a:not(.button) {
  color: var(--color-code-key);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.deepdoc-toc {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 36px;
  margin-bottom: 0;
  overflow: visible;
}

.deepdoc-toc a {
  min-width: 0;
  overflow-wrap: anywhere;
  text-align: center;
}

.deepdoc-article {
  padding-top: 38px;
  background:
    linear-gradient(var(--color-muted-a09) 1px, var(--color-transparent) 1px),
    var(--color-surface);
  background-size: 100% 58px;
}

.manual-chapter {
  scroll-margin-top: calc(var(--header-height) + 20px);
  margin-bottom: 92px;
  padding: 36px;
  background: var(--color-surface-pure);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.manual-chapter:last-of-type {
  margin-bottom: 0;
}

.manual-chapter h2 {
  margin-top: 0;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
}

.manual-chapter h3 {
  margin-top: 2em;
  font-size: clamp(20px, 2vw, 24px);
}

.manual-chapter p {
  color: var(--color-ink-muted);
  line-height: 1.9;
}

.manual-chapter p strong,
.manual-chapter li strong {
  color: var(--color-ink);
}

.chapter-index {
  margin-bottom: 12px;
  color: var(--color-code-key) !important;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.manual-chapter .data-table {
  margin-block: 30px;
  border-radius: var(--radius-sm);
}

.manual-chapter table {
  min-width: 660px;
  background: var(--color-surface-pure);
}

.manual-chapter th {
  font-size: 14px;
}

.manual-chapter td {
  color: var(--color-ink-muted);
  font-size: 14px;
}

.manual-chapter pre {
  margin-block: 28px;
  box-shadow: var(--shadow-soft);
}

.manual-chapter pre code {
  line-height: 1.75;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 32px;
}

.scenario-card {
  min-width: 0;
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.scenario-card code {
  display: inline-block;
  margin-bottom: 13px;
  color: var(--color-code-key);
  font-weight: 800;
}

.scenario-card h3 {
  margin-top: 0;
  font-size: 20px;
}

.scenario-card p {
  margin-bottom: 0;
  font-size: 14px;
}

@media (max-width: 1080px) {
  .deepdoc-hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 56px;
  }

  .protocol-map {
    width: 100%;
    max-width: 650px;
  }

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

@media (max-width: 768px) {
  .deepdoc-hero {
    padding-top: 58px;
    padding-bottom: 66px;
  }

  .deepdoc-hero h1 {
    font-size: clamp(24px, 7vw, 30px);
  }

  .protocol-map-body {
    padding: 20px;
  }

  .protocol-map-axis {
    left: 41px;
  }

  .protocol-node {
    grid-template-columns: minmax(0, 1fr);
    gap: 3px;
    padding-left: 32px;
  }

  .deepdoc-toc {
    display: flex;
    overflow-x: auto;
  }

  .deepdoc-toc a {
    min-width: max-content;
  }

  .manual-chapter {
    margin-bottom: 60px;
    padding: 25px;
  }

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

@media (max-width: 480px) {
  .deepdoc-hero {
    padding-top: 46px;
    padding-bottom: 54px;
  }

  .deepdoc-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .deepdoc-actions .button {
    width: 100%;
  }

  .deepdoc-facts span {
    white-space: normal;
  }

  .protocol-map-head {
    padding-inline: 12px;
  }

  .protocol-map-head code {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .protocol-map-body {
    padding: 15px;
  }

  .protocol-map-axis {
    left: 35px;
  }

  .protocol-node {
    padding-right: 10px;
    padding-left: 32px;
  }

  .manual-chapter {
    padding: 20px 17px;
  }

  .manual-chapter pre {
    padding: 16px;
    font-size: 12px;
  }

  .scenario-card {
    padding: 18px;
  }
}