.page-home {
  background: var(--color-surface);
}

.page-home .home-cover,
.page-home .home-columns,
.page-home .home-structure,
.page-home .home-updates,
.page-home .home-trust,
.page-home .home-strata {
  scroll-margin-top: 88px;
}

/* ---------- 封面首屏 ---------- */

.page-home .home-cover {
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
  border-bottom: 2px dashed var(--color-line);
}

.page-home .home-cover__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-home .home-cover__aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-left: var(--space-3);
  border-left: 4px solid var(--color-primary);
}

.page-home .home-cover__aside-label {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-ink-muted);
}

.page-home .home-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--space-3);
}

.page-home .home-index__item a {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-1) 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-line);
  transition: color 200ms ease;
}

.page-home .home-index__item a:hover,
.page-home .home-index__item a:focus-visible {
  color: var(--color-ink);
}

.page-home .home-index__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
}

.page-home .home-index__name {
  min-width: 0;
}

.page-home .home-cover__version {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

.page-home .home-cover__figure {
  margin: 0 0 var(--space-4);
}

.page-home .home-cover__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
}

.page-home .home-cover__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 24ch;
}

.page-home .home-cover__lede {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

/* ---------- 核心数字地层带 ---------- */

.page-home .home-strata__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
}

.page-home .home-strata__meta {
  max-width: 34ch;
  margin: 0;
}

.page-home .home-strata__band {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--color-primary);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-lg);
}

.page-home .home-strata__texture {
  height: 56px;
  flex: none;
}

.page-home .home-strata__texture img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  mix-blend-mode: luminosity;
}

.page-home .home-strata__stats {
  list-style: none;
  margin: 0;
  padding: var(--space-4) var(--space-3);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  flex: 1 1 auto;
  min-width: 0;
}

.page-home .home-strata__stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: 0 0 0 var(--space-3);
  border-left: 1px solid color-mix(in srgb, var(--color-primary-ink) 34%, transparent);
  transition: background-color 200ms ease;
}

.page-home .home-strata__stat:hover {
  background: color-mix(in srgb, var(--color-primary-ink) 13%, transparent);
}

.page-home .home-strata__value {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-primary-ink);
}

.page-home .home-strata__unit {
  margin-left: 4px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 400;
  color: color-mix(in srgb, var(--color-primary-ink) 84%, var(--color-primary));
}

.page-home .home-strata__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-ink);
}

.page-home .home-strata__note {
  margin: 0;
  font-size: var(--text-xs);
  line-height: 1.65;
  color: color-mix(in srgb, var(--color-primary-ink) 82%, var(--color-primary));
}

/* ---------- 栏目录入岛 ---------- */

.page-home .home-columns__head {
  margin-bottom: var(--space-6);
}

.page-home .home-columns__intro {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-home .home-entry {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--color-ink);
}

.page-home .home-entry__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2) var(--space-3);
  align-items: start;
  padding: var(--space-3) 0;
  border-bottom: 1px dashed var(--color-line);
  transition: background-color 200ms ease;
}

.page-home .home-entry__row:hover {
  background: var(--color-surface-alt);
}

.page-home .home-entry__no {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.page-home .home-entry__main {
  min-width: 0;
}

.page-home .home-entry__name {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-home .home-entry__name a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-home .home-entry__name a:hover,
.page-home .home-entry__name a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.page-home .home-entry__desc {
  margin: 0;
  max-width: 52ch;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-home .home-entry__fields {
  grid-column: 2 / -1;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
}

.page-home .home-entry__fields > div {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.page-home .home-entry__fields dt {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .home-entry__fields dd {
  margin: 0;
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-ink);
  background: var(--color-primary-soft);
  border-radius: var(--radius-sm);
}

/* ---------- 内容库结构分层 ---------- */

.page-home .home-structure__head {
  margin-bottom: var(--space-6);
}

.page-home .home-structure__intro {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-home .home-structure__grid {
  align-items: start;
  row-gap: var(--space-6);
}

.page-home .home-structure__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.page-home .home-structure__figure .figure__caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.65;
  color: var(--color-ink-muted);
}

.page-home .home-structure__layers {
  display: grid;
  gap: var(--space-3);
}

.page-home .home-layer {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-md);
}

.page-home .home-layer--top {
  background: var(--color-surface);
}

.page-home .home-layer--mid {
  background: var(--color-surface-alt);
  border-style: dashed;
}

.page-home .home-layer--deep {
  background: var(--color-surface-deep);
}

.page-home .home-layer__index {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.page-home .home-layer__name {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .home-layer__text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-home .home-layer__links {
  margin: var(--space-3) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.page-home .home-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-primary);
  padding-bottom: 1px;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-home .home-link:hover,
.page-home .home-link:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* ---------- 更新与公告摘要 ---------- */

.page-home .home-updates__grid {
  align-items: start;
  row-gap: var(--space-6);
}

.page-home .home-updates__intro {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-home .home-updates__pair {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-home .home-update {
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-md);
}

.page-home .home-update--current {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.page-home .home-update__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.page-home .home-update__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .home-update__list {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .home-update__list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-home .home-update__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 10px;
  height: 2px;
  background: var(--color-primary);
}

.page-home .home-updates__more {
  margin: var(--space-3) 0 0;
}

.page-home .home-updates__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-home .home-updates__figure .figure__caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.65;
  color: var(--color-ink-muted);
}

/* ---------- 信任与备案条 ---------- */

.page-home .home-trust__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-home .home-trust__text {
  margin: var(--space-3) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.page-home .home-trust__meta {
  margin: 0;
  display: grid;
  align-content: start;
  border-top: 2px solid var(--color-primary);
}

.page-home .home-trust__meta > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-line);
}

.page-home .home-trust__meta dt {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .home-trust__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
}

.page-home .home-trust__links {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-3);
  border-top: 2px dashed var(--color-line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

/* ---------- 断点 ---------- */

@media (min-width: 641px) {
  .page-home .home-updates__pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 901px) {
  .page-home .home-cover {
    padding-top: var(--space-8);
    padding-bottom: var(--section-y);
  }

  .page-home .home-cover__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: var(--space-8);
    align-items: start;
  }

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

  .page-home .home-cover__aside {
    position: sticky;
    top: 96px;
  }

  .page-home .home-cover__title {
    font-size: var(--text-3xl);
  }

  .page-home .home-strata__band {
    flex-direction: row;
  }

  .page-home .home-strata__texture {
    width: 104px;
    height: auto;
    min-height: 100%;
  }

  .page-home .home-strata__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding: var(--space-6) var(--space-4);
  }

  .page-home .home-strata__value {
    font-size: var(--text-3xl);
  }

  .page-home .home-entry__row {
    grid-template-columns: 56px minmax(0, 1fr) minmax(0, 320px);
    align-items: center;
    gap: var(--space-2) var(--space-4);
  }

  .page-home .home-entry__fields {
    grid-column: 3;
    justify-content: flex-end;
  }

  .page-home .home-trust__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: var(--space-8);
  }
}

@media (min-width: 1101px) {
  .page-home .home-strata__texture {
    width: 132px;
  }

  .page-home .home-strata__stats {
    padding: var(--space-8) var(--space-6);
  }

  .page-home .home-layer {
    padding: var(--space-4);
  }
}
<<<END>>>