.deepdoc-hero {
  position: relative;
  overflow-x: clip;
  padding-top: clamp(52px, 7vw, 92px);
  padding-bottom: clamp(68px, 8vw, 112px);
  background: var(--gradient-hero);
  color: var(--color-white-muted);
}

.deepdoc-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 64px 64px;
  content: "";
  mask-image: linear-gradient(to bottom, var(--color-text), transparent);
  pointer-events: none;
}

.deepdoc-hero::after {
  position: absolute;
  right: -12%;
  bottom: -44%;
  width: min(58vw, 760px);
  aspect-ratio: 1;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-pill);
  box-shadow:
    0 0 0 48px var(--color-white-overlay),
    0 0 0 108px var(--color-white-overlay);
  content: "";
  pointer-events: none;
}

.deepdoc-hero .wrap {
  position: relative;
  z-index: 2;
}

.deepdoc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
  color: var(--color-white-muted);
  font-size: 13px;
}

.deepdoc-breadcrumb a:hover,
.deepdoc-breadcrumb a:focus-visible {
  color: var(--color-panel);
}

.deepdoc-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.75fr);
  align-items: end;
  gap: clamp(34px, 6vw, 78px);
}

.deepdoc-hero-copy h1 {
  max-width: 780px;
  margin: 20px 0 20px;
  color: var(--color-panel);
}

.deepdoc-lead {
  max-width: 760px;
  color: var(--color-white-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
}

.deepdoc-facts {
  margin-top: 28px;
}

.deepdoc-facts .fact-pill,
.deepdoc-facts .badge {
  border-color: var(--color-white-border);
  background: var(--color-white-overlay);
  color: var(--color-white-soft);
}

.reference-card {
  position: relative;
  padding: 26px;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-card);
  background: var(--color-white-overlay-strong);
  box-shadow: var(--shadow-device);
  backdrop-filter: blur(12px);
}

.reference-card-head {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 18px;
  color: var(--color-panel);
}

.reference-list {
  display: grid;
  gap: 1px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-white-border);
  border-radius: var(--radius-card-inner);
  background: var(--color-white-border);
}

.reference-list div {
  display: grid;
  grid-template-columns: minmax(82px, 0.7fr) minmax(0, 1.3fr);
  gap: 15px;
  padding: 13px 14px;
  background: var(--color-hero-mid);
}

.reference-list dt {
  color: var(--color-panel);
  font-weight: 760;
}

.reference-list dd {
  margin: 0;
  color: var(--color-white-muted);
  font-size: 13px;
}

.reference-card p {
  margin: 18px 0 0;
  color: var(--color-white-muted);
  font-size: 13px;
}

.reference-card a {
  color: var(--color-panel);
  font-weight: 760;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.deepdoc-shell {
  padding-top: 28px;
  padding-bottom: clamp(76px, 9vw, 128px);
}

.deepdoc-shell > .toc-tabs {
  margin-bottom: 28px;
}

.deepdoc-article {
  width: min(100%, 880px);
  margin-inline: auto;
}

.deepdoc-chapter {
  padding-top: clamp(62px, 8vw, 106px);
  padding-bottom: clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--color-border);
}

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

.chapter-mark {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.chapter-mark > .mono {
  color: var(--color-text-muted);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.deepdoc-chapter h2 {
  max-width: 760px;
  margin-bottom: 34px;
}

.deepdoc-chapter h3 {
  margin-top: 44px;
  margin-bottom: 14px;
  color: var(--color-accent-dark);
}

.deepdoc-chapter p {
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.92;
}

.deepdoc-chapter a {
  color: var(--color-accent-dark);
  font-weight: 720;
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 4px;
}

.deepdoc-chapter a:hover,
.deepdoc-chapter a:focus-visible {
  text-decoration-color: var(--color-accent);
}

.deepdoc-chapter .callout {
  margin-top: 34px;
  margin-bottom: 34px;
}

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

.deepdoc-chapter .table-scroll {
  margin-top: 32px;
  margin-bottom: 34px;
}

.deepdoc-chapter pre {
  margin-top: 24px;
  margin-bottom: 26px;
}

.selection-ledger {
  margin-top: 42px;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--gradient-soft);
  box-shadow: var(--shadow-panel);
}

.selection-ledger h3 {
  margin-top: 0;
}

.selection-ledger .table-scroll {
  margin-bottom: 0;
}

.diagnosis-board {
  margin-top: 40px;
  margin-bottom: 40px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.diagnosis-board h3 {
  margin-top: 0;
}

.diagnosis-board dl {
  display: grid;
  gap: 1px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card-inner);
  background: var(--color-border);
}

.diagnosis-board dl div {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.7fr);
  gap: 24px;
  padding: 17px 18px;
  background: var(--color-panel-soft);
}

.diagnosis-board dt {
  color: var(--color-text);
  font-weight: 780;
}

.diagnosis-board dd {
  margin: 0;
  color: var(--color-text-muted);
}

.deepdoc-promo {
  width: min(100%, 880px);
  margin-inline: auto;
}

.deepdoc-promo h3 {
  font-size: clamp(24px, 3vw, 34px);
}

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

  .reference-card {
    max-width: 680px;
  }
}

@media (max-width: 768px) {
  .deepdoc-hero {
    padding-top: 38px;
    padding-bottom: 70px;
  }

  .deepdoc-breadcrumb {
    margin-bottom: 28px;
  }

  .deepdoc-hero::after {
    display: none;
  }

  .reference-card {
    border-radius: var(--radius-card-inner);
    backdrop-filter: none;
  }

  .deepdoc-shell {
    padding-top: 18px;
  }

  .deepdoc-chapter {
    padding-top: 68px;
  }

  .deepdoc-chapter h3 {
    margin-top: 36px;
  }

  .selection-ledger,
  .diagnosis-board {
    padding: 22px;
    border-radius: var(--radius-card-inner);
  }

  .diagnosis-board dl div {
    grid-template-columns: 1fr;
    gap: 7px;
  }
}

@media (max-width: 640px) {
  .deepdoc-lead {
    font-size: 16px;
  }

  .reference-card {
    padding: 20px;
  }

  .reference-list div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .deepdoc-chapter p {
    font-size: 15px;
    line-height: 1.88;
  }

  .chapter-mark {
    align-items: flex-start;
    flex-direction: column;
  }

  .selection-ledger,
  .diagnosis-board {
    padding: 18px;
  }
}