:root {
  --module-pathology: #2f6470;
  --module-pathology-soft: #e7f0f2;
  --module-bone-marrow: #805449;
  --module-bone-marrow-soft: #f6ece8;
  --module-clinical-pathology: #4f657f;
  --module-clinical-pathology-soft: #eaf0f6;
}

body[data-module="pathology"] {
  --module-color: var(--module-pathology);
  --module-soft: var(--module-pathology-soft);
}

body[data-module="bone-marrow"] {
  --module-color: var(--module-bone-marrow);
  --module-soft: var(--module-bone-marrow-soft);
}

body[data-module="clinical-pathology"] {
  --module-color: var(--module-clinical-pathology);
  --module-soft: var(--module-clinical-pathology-soft);
}

.platform-hero {
  overflow: hidden;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.platform-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  min-height: 570px;
  padding-block: clamp(3.5rem, 9vw, 7.5rem);
}

.platform-hero h1 {
  max-width: 16ch;
  margin-bottom: 1.2rem;
  font-size: clamp(2.45rem, 6vw, 5.4rem);
  line-height: 1.06;
}

.platform-hero .lead {
  max-width: 50rem;
  color: var(--color-ink-soft);
  font-size: clamp(1.04rem, 1.7vw, 1.26rem);
}

.platform-boundary {
  margin-top: 1.3rem;
  padding-left: 0.9rem;
  border-left: 3px solid var(--color-accent);
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

.platform-hero__map {
  position: relative;
  display: grid;
  gap: 0.75rem;
  padding: 1.2rem;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface-soft);
  box-shadow: var(--shadow-soft);
}

.platform-hero__map::before {
  content: "三个观察窗口 · 一条证据链";
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-ink-soft);
  font-size: 0.76rem;
  font-weight: 780;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.platform-hero__module-link {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  gap: 0.85rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--module-color, var(--color-primary));
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink);
  text-decoration: none;
}

.platform-hero__module-link:hover {
  border-color: var(--module-color, var(--color-primary));
  color: var(--color-ink);
  transform: translateY(-1px);
}

.platform-hero__module-link[data-module="pathology"] { --module-color: var(--module-pathology); }
.platform-hero__module-link[data-module="bone-marrow"] { --module-color: var(--module-bone-marrow); }
.platform-hero__module-link[data-module="clinical-pathology"] { --module-color: var(--module-clinical-pathology); }

.platform-hero__module-link > span:first-child {
  color: var(--module-color);
  font-size: 0.78rem;
  font-weight: 850;
}

.platform-hero__module-link strong,
.platform-hero__module-link small {
  display: block;
}

.platform-hero__module-link small {
  margin-top: 0.18rem;
  color: var(--color-ink-soft);
}

.platform-section {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.platform-section--surface {
  border-block: 1px solid var(--color-line);
  background: var(--color-surface);
}

.platform-section__heading {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  gap: 1.5rem;
  align-items: end;
  margin-bottom: 1.8rem;
}

.platform-section__heading p:last-child {
  margin-bottom: 0;
  color: var(--color-ink-soft);
}

.platform-module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.platform-module-card {
  --card-accent: var(--color-primary);
  display: flex;
  min-width: 0;
  min-height: 100%;
  flex-direction: column;
  padding: clamp(1.2rem, 2.5vw, 1.75rem);
  border: 1px solid var(--color-line);
  border-top: 6px solid var(--card-accent);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.platform-module-card--pathology { --card-accent: var(--module-pathology); }
.platform-module-card--bone-marrow { --card-accent: var(--module-bone-marrow); }
.platform-module-card--clinical-pathology { --card-accent: var(--module-clinical-pathology); }

.platform-module-card header {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.platform-module-card__index {
  color: var(--card-accent);
  font-size: 0.78rem;
  font-weight: 850;
}

.platform-module-card .eyebrow {
  margin-bottom: 0.15rem;
}

.platform-module-card h3 {
  margin-bottom: 0.8rem;
  font-size: 1.65rem;
}

.platform-module-card__tagline {
  font-weight: 720;
}

.platform-module-card__question {
  padding: 0.85rem;
  border-left: 3px solid var(--card-accent);
  background: var(--color-surface-soft);
}

.platform-module-card__question strong,
.platform-module-card__body > strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--card-accent);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.platform-module-card__body ul {
  margin-bottom: 1rem;
}

.platform-module-card__use {
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

.platform-module-card__footer {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--color-line);
}

.platform-module-card__footer > span {
  color: var(--card-accent);
  font-size: 0.82rem;
  font-weight: 760;
}

.evidence-flow {
  display: grid;
  gap: 0;
  max-width: 920px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.evidence-flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.1rem 1.25rem 2.1rem;
  border-inline: 1px solid var(--color-line);
  background: var(--color-surface);
}

.evidence-flow__step:first-child {
  border-top: 1px solid var(--color-line);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.evidence-flow__step:last-child {
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--color-line);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.evidence-flow__number {
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 800;
}

.evidence-flow h3 {
  margin-bottom: 0.2rem;
}

.evidence-flow p {
  margin: 0;
  color: var(--color-ink-soft);
}

.evidence-flow__arrow {
  position: absolute;
  bottom: 0.15rem;
  left: 2.15rem;
  color: var(--color-line-strong);
  font-size: 1.1rem;
}

.use-mode-grid,
.featured-topic-grid,
.status-grid,
.module-start-grid,
.module-content-grid {
  display: grid;
  gap: 1rem;
}

.use-mode-grid,
.status-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.featured-topic-grid,
.module-start-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.module-content-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.use-mode-card,
.featured-topic,
.status-grid article,
.module-start-card,
.module-map-card {
  min-width: 0;
  padding: 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.use-mode-card > span,
.module-start-card > span {
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 850;
}

.use-mode-card strong {
  display: block;
  margin-bottom: 0.8rem;
  color: var(--color-primary-dark);
}

.use-mode-card a,
.module-map-card a {
  font-weight: 730;
}

.featured-topic dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 0;
}

.featured-topic dl div {
  min-width: 0;
  padding: 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--color-surface-soft);
}

.featured-topic dt {
  color: var(--color-ink-soft);
  font-size: 0.73rem;
}

.featured-topic dd {
  margin: 0.2rem 0 0;
  font-size: 0.84rem;
  font-weight: 680;
}

.module-badge {
  display: inline-flex;
  padding: 0.25rem 0.52rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  font-size: 0.74rem;
  font-weight: 760;
}

.module-badge--pathology { background: var(--module-pathology-soft); color: var(--module-pathology); }
.module-badge--bone-marrow { background: var(--module-bone-marrow-soft); color: var(--module-bone-marrow); }
.module-badge--clinical-pathology { background: var(--module-clinical-pathology-soft); color: var(--module-clinical-pathology); }

.recent-list {
  margin: 0;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  list-style: none;
  overflow: hidden;
}

.recent-list li + li {
  margin: 0;
  border-top: 1px solid var(--color-line);
}

.recent-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.2rem;
  color: var(--color-ink);
  text-decoration: none;
}

.recent-list a:hover {
  background: var(--color-surface-soft);
}

.recent-list a > span:first-child {
  display: flex;
  gap: 0.7rem;
  align-items: center;
}

.recent-list a > span:last-child {
  color: var(--color-ink-soft);
  font-size: 0.8rem;
}

.module-hero {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.module-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: end;
  padding-block: clamp(3rem, 7vw, 6rem);
}

.module-hero h1 span {
  display: block;
  margin-top: 0.45rem;
  color: var(--module-color);
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 650;
}

.module-question {
  padding: 1.1rem;
  border: 1px solid var(--color-line);
  border-top: 5px solid var(--module-color);
  border-radius: var(--radius-md);
  background: var(--module-soft);
}

.module-question strong {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--module-color);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.module-start-card,
.module-map-card {
  border-top: 4px solid var(--module-color);
}

.module-start-card p,
.module-map-card p {
  color: var(--color-ink-soft);
}

.module-start-card .button {
  margin-top: auto;
}

.module-start-card {
  display: flex;
  flex-direction: column;
}

.module-topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.module-topic-list li,
.filter-chip {
  margin: 0;
  padding: 0.42rem 0.7rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: 0.82rem;
}

.filter-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.related-evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.related-evidence-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.1rem;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--module-color);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-ink);
  font-weight: 730;
  text-decoration: none;
}

.module-local-nav {
  border-bottom: 1px solid var(--color-line);
  background: var(--module-soft, var(--color-surface-soft));
}

.module-local-nav__inner {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  min-height: 52px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.module-local-nav__label {
  flex: 0 0 auto;
  margin-right: 0.4rem;
  color: var(--module-color, var(--color-primary));
  font-size: 0.78rem;
  font-weight: 820;
}

.module-local-nav a {
  flex: 0 0 auto;
  padding: 0.42rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.module-local-nav a:hover,
.module-local-nav a[aria-current="page"] {
  background: var(--color-surface);
  color: var(--module-color, var(--color-primary));
}

.content-page-hero {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-surface);
}

.content-page-hero__inner {
  max-width: 920px;
  padding-block: clamp(2.8rem, 7vw, 5.5rem);
}

.content-page-hero h1 span {
  display: block;
  margin-top: 0.45rem;
  color: var(--module-color, var(--color-primary));
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 650;
}

.content-page-layout {
  display: grid;
  grid-template-columns: minmax(190px, 0.25fr) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: start;
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.content-page-toc {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.content-page-toc strong {
  margin-bottom: 0.35rem;
  color: var(--module-color, var(--color-primary));
  font-size: 0.78rem;
}

.content-page-toc a {
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  text-decoration: none;
}

.content-page-toc a:hover,
.content-page-toc a:focus-visible {
  background: var(--module-soft, var(--color-primary-soft));
  color: var(--module-color, var(--color-primary));
}

.content-page-section {
  scroll-margin-top: 1rem;
  padding: clamp(1.15rem, 3vw, 1.7rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.content-page-section + .content-page-section {
  margin-top: 1rem;
}

.content-page-section h2 {
  font-size: clamp(1.3rem, 2vw, 1.65rem);
}

.content-page-section p:last-child,
.content-page-section ul:last-child,
.content-page-section .button-row:last-child {
  margin-bottom: 0;
}

.content-page-note {
  margin-top: 1rem;
  padding: 1rem;
  border-left: 4px solid var(--module-color, var(--color-primary));
  background: var(--module-soft, var(--color-primary-soft));
}

.module-search-box {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.module-search-box input {
  min-width: 0;
  flex: 1;
  padding: 0.68rem 0.75rem;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
}

.platform-search-panel {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.platform-search-row {
  display: grid;
  grid-template-columns: minmax(260px, 1.4fr) repeat(2, minmax(150px, 0.5fr)) auto;
  gap: 0.75rem;
  align-items: end;
}

.platform-search-row label {
  display: grid;
  gap: 0.3rem;
  color: var(--color-ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.platform-search-row input,
.platform-search-row select {
  min-width: 0;
  padding: 0.68rem 0.75rem;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
}

.platform-search-options {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.platform-search-options label {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  color: var(--color-ink-soft);
  font-size: 0.84rem;
}

.search-group + .search-group {
  margin-top: 2rem;
}

.search-group__heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 2px solid var(--color-line);
}

.search-group__heading h2 {
  margin: 0;
}

.platform-search-results {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.platform-search-result {
  padding: 1rem 1.1rem;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.platform-search-result h3 {
  margin: 0.45rem 0 0.25rem;
}

.platform-search-result p {
  margin-bottom: 0.55rem;
  color: var(--color-ink-soft);
}

.platform-search-result__reason {
  font-size: 0.78rem;
}

@media (max-width: 960px) {
  .platform-hero__grid,
  .module-hero__grid,
  .platform-section__heading {
    grid-template-columns: 1fr;
  }

  .platform-module-grid,
  .module-content-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .use-mode-grid,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .platform-search-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .platform-hero__grid {
    min-height: auto;
  }

  .platform-module-grid,
  .module-content-grid,
  .module-start-grid,
  .featured-topic-grid,
  .related-evidence-grid {
    grid-template-columns: 1fr;
  }

  .recent-list a {
    grid-template-columns: 1fr;
  }

  .recent-list a > span:first-child {
    align-items: flex-start;
    flex-direction: column;
  }

  .featured-topic dl {
    grid-template-columns: 1fr;
  }

  .content-page-layout {
    grid-template-columns: 1fr;
  }

  .content-page-toc {
    position: static;
  }

  .platform-search-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .platform-hero h1 {
    font-size: clamp(2.1rem, 12vw, 3.2rem);
  }

  .platform-module-card__footer {
    align-items: stretch;
    flex-direction: column;
  }

  .platform-module-card__footer .button {
    width: 100%;
    text-align: center;
  }

  .evidence-flow__step {
    grid-template-columns: 2.5rem minmax(0, 1fr);
    padding-inline: 0.85rem;
  }

  .evidence-flow__arrow {
    left: 1.7rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .platform-hero__module-link {
    transition: none;
  }
}