:root {
  --deepdoc-grid-line: var(--color-border);
  --deepdoc-marker-bg: var(--color-accent-soft);
  --deepdoc-dark-rule: var(--color-ink-line-strong);
  --deepdoc-step-size: 32px;
}

.guide-hero {
  position: relative;
  padding-top: 58px;
  padding-bottom: 48px;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.guide-hero::after {
  position: absolute;
  z-index: 0;
  right: -8%;
  bottom: -36%;
  width: 54%;
  height: 78%;
  border-radius: 50%;
  background: var(--color-accent-soft);
  content: "";
  opacity: 0.7;
  pointer-events: none;
}

.guide-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr);
  gap: 54px;
  align-items: center;
}

.guide-hero-copy,
.guide-index-card {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.guide-hero-copy .badge {
  margin-bottom: 18px;
}

.guide-hero-copy h1 {
  max-width: 760px;
  margin-bottom: 20px;
}

.guide-lede {
  max-width: 760px;
  margin-bottom: 20px;
  color: var(--color-muted);
  font-size: 17px;
  line-height: 1.8;
}

.guide-facts {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.guide-route-note {
  max-width: 750px;
  margin-bottom: 0;
  padding-top: 17px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 14px;
}

.guide-route-note a {
  margin-inline: 4px;
  font-weight: 750;
}

.guide-index-card {
  padding: 22px;
  border: 1px solid var(--color-ink-edge);
  border-radius: var(--radius-card);
  background: var(--color-ink);
  box-shadow: var(--shadow-device);
  color: var(--color-ink-text);
  transform: rotate(0.7deg);
}

.guide-index-head,
.guide-index-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.guide-index-head {
  padding-bottom: 17px;
  border-bottom: 1px solid var(--deepdoc-dark-rule);
  color: var(--color-ink-muted);
}

.guide-index-head .status-label {
  border-color: var(--color-ink-line-strong);
  background: var(--color-ink-panel);
  color: var(--color-ink-text);
}

.guide-index-list {
  display: grid;
  gap: 7px;
  padding-top: 15px;
  padding-bottom: 15px;
}

.guide-index-list > span {
  display: grid;
  grid-template-columns: 58px 1fr;
  min-height: 47px;
  align-items: center;
  gap: 14px;
  padding: 8px 12px;
  border: 1px solid var(--color-ink-line);
  border-radius: var(--radius-sm);
  background: var(--color-ink-panel);
  color: var(--color-ink-text);
}

.guide-index-list code {
  color: var(--color-accent-line);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.guide-index-foot {
  justify-content: flex-start;
  padding-top: 14px;
  border-top: 1px solid var(--deepdoc-dark-rule);
  color: var(--color-ink-muted);
}

.guide-layout {
  padding-top: 28px;
  padding-bottom: var(--section-space);
}

.guide-layout > .toc-tabs {
  max-width: var(--reading-width);
  margin-inline: auto;
}

.deep-guide {
  width: 100%;
  max-width: var(--reading-width);
  margin-inline: auto;
}

.guide-section {
  padding-top: 56px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}

.guide-section:last-child {
  border-bottom: 0;
}

.section-code {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.guide-section h2 {
  max-width: 760px;
}

.guide-section h3 {
  margin-top: 34px;
}

.guide-section p {
  color: var(--color-text);
}

.guide-section p + p {
  margin-top: -0.3em;
}

.guide-section .callout {
  margin-top: 28px;
  margin-bottom: 30px;
}

.guide-section .table-scroll {
  margin-top: 28px;
  margin-bottom: 32px;
}

.guide-section pre {
  margin-top: 24px;
  margin-bottom: 28px;
}

.diagnostic-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
  margin-bottom: 28px;
  padding: 0;
  list-style: none;
  counter-reset: diagnostic-step;
}

.diagnostic-list li {
  position: relative;
  min-width: 0;
  padding: 17px 18px 17px 62px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  counter-increment: diagnostic-step;
}

.diagnostic-list li::before {
  position: absolute;
  top: 17px;
  left: 17px;
  display: grid;
  width: var(--deepdoc-step-size);
  height: var(--deepdoc-step-size);
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-white);
  content: counter(diagnostic-step);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
}

.guide-closing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 46px;
  padding: 25px;
  border: 1px solid var(--color-ink-edge);
  border-radius: var(--radius-lg);
  background: var(--color-ink);
  box-shadow: var(--shadow-device);
  color: var(--color-ink-text);
}

.guide-closing h3 {
  margin-top: 0;
  color: var(--color-ink-text);
}

.guide-closing p {
  margin-bottom: 0;
  color: var(--color-ink-muted);
}

.guide-closing p a {
  color: var(--color-ink-text);
  text-decoration-color: var(--color-ink-line-strong);
}

.guide-closing p a:hover {
  color: var(--color-white);
  text-decoration-color: var(--color-accent);
}

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

  .guide-index-card {
    max-width: 680px;
    transform: none;
  }

  .guide-hero::after {
    right: -22%;
    bottom: -18%;
    width: 80%;
    height: 44%;
  }
}

@media (max-width: 768px) {
  .guide-hero {
    padding-top: 38px;
    padding-bottom: 40px;
  }

  .guide-lede {
    font-size: 16px;
  }

  .guide-section {
    padding-top: 44px;
    padding-bottom: 22px;
  }

  .guide-section h3 {
    margin-top: 28px;
  }

  .guide-closing {
    grid-template-columns: 1fr;
  }

  .guide-closing .btn-primary {
    width: 100%;
  }
}

@media (max-width: 540px) {
  .guide-index-card {
    padding: 15px;
  }

  .guide-index-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .guide-index-list > span {
    grid-template-columns: 48px minmax(0, 1fr);
    padding-inline: 9px;
  }

  .guide-facts {
    align-items: stretch;
    flex-direction: column;
  }

  .guide-facts .fact-pill {
    width: 100%;
  }

  .diagnostic-list li {
    padding: 58px 15px 16px;
  }

  .diagnostic-list li::before {
    top: 14px;
    left: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .guide-index-card {
    transform: none;
  }
}