.page-home {
  --home-rule: color-mix(in srgb, var(--color-line) 72%, transparent);
  --home-hair: color-mix(in srgb, var(--color-line) 52%, transparent);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

.page-home .shell {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  box-sizing: border-box;
}

.page-home h1,
.page-home h2,
.page-home h3 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin: 0;
}

.page-home .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.page-home .kicker {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.16em;
  margin: 0 0 var(--space-3);
}

.page-home .lede {
  font-size: var(--text-base);
  color: var(--color-ink-soft);
  max-width: var(--measure);
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  padding: calc(var(--section-y-lg) * 0.5) 0 0;
  background: var(--color-surface);
}

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

.page-home .hero-copy,
.page-home .hero-body,
.page-home .hero-side {
  min-width: 0;
}

.page-home .hero-title {
  font-size: var(--text-display);
  color: var(--color-ink);
  margin: 0;
  max-width: 100%;
  overflow-wrap: break-word;
}

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

.page-home .hero-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  margin: 0;
  padding: 0;
}

.page-home .hero-figure {
  display: flex;
  flex-direction: column-reverse;
  min-width: 0;
}

.page-home .figure-label {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.14em;
  margin-top: var(--space-1);
}

.page-home .figure-value {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.12em;
  color: var(--color-primary);
}

.page-home .figure-num {
  font-size: var(--text-figure);
  line-height: 1;
  color: inherit;
}

.page-home .figure-suffix {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .hero-side {
  border-top: var(--border-thin) solid var(--home-rule);
  padding-top: var(--space-4);
}

.page-home .hero-side-title {
  font-size: var(--text-lg);
  color: var(--color-ink);
  margin-bottom: var(--space-3);
}

.page-home .hero-side-note {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  margin: 0;
}

.page-home .mini-index {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .mini-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .mini-num {
  color: var(--color-primary);
  font-size: var(--text-xs);
  flex: 0 0 auto;
}

.page-home .hero-band {
  margin: calc(var(--space-8) * 1.4) 0 0;
  padding: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.page-home .hero-band img {
  display: block;
  width: 100%;
  height: clamp(180px, 30vw, 420px);
  object-fit: cover;
}

/* ---------- 区段骨架 ---------- */

.page-home .section {
  padding: calc(var(--section-y) * 0.45) 0;
}

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

.page-home .section-head {
  display: grid;
  gap: var(--space-2);
  margin-bottom: calc(var(--space-8) * 0.75);
}

.page-home .section-num {
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.2em;
}

.page-home .section-title {
  font-size: var(--text-2xl);
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-home .section-lead {
  font-size: var(--text-base);
  color: var(--color-ink-soft);
  max-width: var(--measure);
  margin: 0;
}

/* ---------- 筛选 ---------- */

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  margin-bottom: var(--space-6);
}

.page-home .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  appearance: none;
  border: var(--border-thin) solid var(--home-rule);
  background: transparent;
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: 0.5em 0.9em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 200ms ease-out, color 200ms ease-out, border-color 200ms ease-out;
}

.page-home .filter-btn:hover {
  color: var(--color-ink);
  border-color: var(--color-primary);
}

.page-home .filter-btn:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
  color: var(--color-focus);
}

.page-home .filter-btn[aria-pressed="true"] {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-home .filter-count {
  color: var(--color-ink-muted);
}

.page-home .filter-btn[aria-pressed="true"] .filter-count {
  color: var(--color-primary);
}

/* ---------- 六类入口 ---------- */

.page-home .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .entry {
  padding: var(--space-6) 0;
  border-top: var(--border-thin) solid var(--home-rule);
}

.page-home .entry:last-child {
  border-bottom: var(--border-thin) solid var(--home-rule);
}

.page-home .entry[hidden],
.page-home .entry.is-hidden {
  display: none;
}

.page-home .entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}

.page-home .entry-num {
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.18em;
  flex: 0 0 auto;
}

.page-home .entry-title {
  font-size: var(--text-lg);
  color: var(--color-ink);
  flex: 1 1 auto;
  min-width: 0;
}

.page-home .tag {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: 0.25em 0.6em;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  white-space: nowrap;
}

.page-home .tag--accent {
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-home .tag--batch {
  background: var(--color-surface-deep);
  color: var(--color-ink-muted);
}

.page-home .tag--batch.is-marked,
.page-home .batch-num.is-marked {
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-home .entry-desc {
  font-size: var(--text-base);
  color: var(--color-ink-soft);
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
}

.page-home .entry-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-4);
}

.page-home .entry-count {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.1em;
}

.page-home .entry-link,
.page-home .path-link,
.page-home .adapt-link,
.page-home .batch-link {
  font-size: var(--text-sm);
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--home-hair);
  padding-bottom: 0.12em;
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-home .entry-link:hover,
.page-home .path-link:hover,
.page-home .adapt-link:hover,
.page-home .batch-link:hover {
  color: var(--color-focus);
  border-color: var(--color-focus);
}

.page-home .entry-link:focus-visible,
.page-home .path-link:focus-visible,
.page-home .adapt-link:focus-visible,
.page-home .batch-link:focus-visible,
.page-home .path-foot a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 3px;
  color: var(--color-focus);
}

/* ---------- 双维度索引 ---------- */

.page-home .grid-scroll {
  overflow-x: auto;
  padding-bottom: var(--space-2);
}

.page-home .grid-svg {
  display: block;
  width: 100%;
  min-width: 700px;
  height: auto;
}

.page-home .grid-svg .col-label,
.page-home .grid-svg .row-label {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--color-ink-muted);
  letter-spacing: 0.06em;
}

.page-home .grid-svg .row-label {
  text-anchor: end;
  fill: var(--color-primary);
}

.page-home .grid-svg .cell--arch {
  fill: var(--color-surface-deep);
}

.page-home .grid-svg .cell--live {
  fill: var(--color-primary);
  opacity: 0.62;
}

.page-home .grid-svg .cell--now {
  fill: var(--color-accent);
}

.page-home .grid-meta {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-home .grid-legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.page-home .legend-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.06em;
}

.page-home .legend-swatch {
  width: 14px;
  height: 10px;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.page-home .legend-swatch--arch {
  background: var(--color-surface-deep);
}

.page-home .legend-swatch--live {
  background: var(--color-primary);
  opacity: 0.62;
}

.page-home .legend-swatch--now {
  background: var(--color-accent);
}

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

.page-home .volume-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .volume-tag {
  font-size: var(--text-xs);
  color: var(--color-primary);
  flex: 0 0 3.6em;
  letter-spacing: 0.1em;
}

.page-home .volume-range {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--color-ink-soft);
}

/* ---------- 批次记录 ---------- */

.page-home .batch-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: batch;
}

.page-home .batch {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--home-rule);
}

.page-home .batch:last-child {
  border-bottom: var(--border-thin) solid var(--home-rule);
}

.page-home .batch[hidden],
.page-home .batch.is-hidden {
  display: none;
}

.page-home .batch-num {
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.12em;
  background: var(--color-highlight);
  border-radius: var(--radius-sm);
  padding: 0.18em 0.5em;
  justify-self: start;
  transition: background-color 220ms ease-out, color 220ms ease-out;
}

.page-home .batch-kind {
  justify-self: start;
}

.page-home .batch-scope {
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-home .batch-state {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.1em;
}

.page-home .batch-note {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  opacity: 0.68;
  max-width: var(--measure);
  margin: var(--space-1) 0 0;
  transition: opacity 220ms ease-out, color 220ms ease-out;
}

.page-home .batch:hover .batch-note,
.page-home .batch:focus-within .batch-note {
  opacity: 1;
  color: var(--color-ink);
}

.page-home .batch:hover .batch-num,
.page-home .batch:focus-within .batch-num {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-home .batch-link {
  justify-self: start;
  margin-top: var(--space-2);
}

/* ---------- 适配 ---------- */

.page-home .adapt-layout {
  display: grid;
  gap: var(--space-6);
}

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

.page-home .adapt-cell {
  background: var(--color-surface-deep);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: grid;
  gap: var(--space-1);
}

.page-home .adapt-num {
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.18em;
}

.page-home .adapt-name {
  font-size: var(--text-lg);
  color: var(--color-ink);
}

.page-home .adapt-desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  margin: 0;
}

.page-home .adapt-count {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.1em;
}

.page-home .adapt-aside {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-4);
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

.page-home .adapt-aside-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-figure);
  line-height: 1;
  color: var(--color-accent);
  margin: 0;
}

.page-home .adapt-aside-label {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.14em;
  margin: 0 0 var(--space-3);
}

.page-home .adapt-aside-note {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-3);
}

.page-home .adapt-aside .adapt-link {
  justify-self: start;
}

/* ---------- 检索路径 ---------- */

.page-home .path-layout {
  display: grid;
  gap: var(--space-6);
}

.page-home .path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-6);
}

.page-home .path {
  display: grid;
  gap: var(--space-1);
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-primary);
}

.page-home .path-num {
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.2em;
}

.page-home .path-name {
  font-size: var(--text-lg);
  color: var(--color-ink);
}

.page-home .path-desc {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-1);
}

.page-home .path-link {
  justify-self: start;
}

.page-home .path-figure {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .path-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.page-home .path-caption {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  line-height: 1.6;
  max-width: 34ch;
}

.page-home .path-foot {
  margin: var(--space-8) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-home .path-foot a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--home-hair);
}

.page-home .path-foot a:hover {
  color: var(--color-focus);
  border-color: var(--color-focus);
}

/* ---------- 深色收口 ---------- */

.page-home .section-close {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: calc(var(--section-y) * 0.6) 0;
}

.page-home .close-shell {
  display: grid;
  gap: var(--space-4);
}

.page-home .close-title {
  font-size: var(--text-2xl);
  color: var(--color-contrast-ink);
  max-width: 22ch;
}

.page-home .close-note {
  font-size: var(--text-base);
  color: var(--color-contrast-ink);
  opacity: 0.78;
  max-width: var(--measure);
  margin: 0;
}

.page-home .close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.page-home .close-btn {
  border-color: var(--color-contrast-accent);
  color: var(--color-contrast-accent);
}

.page-home .close-btn:hover {
  border-color: var(--color-contrast-ink);
  color: var(--color-contrast-ink);
}

.page-home .close-btn-quiet {
  border-color: transparent;
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

.page-home .close-btn-quiet:hover {
  opacity: 1;
  color: var(--color-contrast-ink);
}

.page-home .close-btn:focus-visible,
.page-home .close-btn-quiet:focus-visible {
  outline: var(--border-thick) solid var(--color-contrast-accent);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 680px) {
  .page-home .section-head {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-home .adapt-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .path-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6) var(--space-4);
  }

  .page-home .batch {
    grid-template-columns: auto auto minmax(0, 1fr) auto;
    align-items: baseline;
    column-gap: var(--space-3);
  }

  .page-home .batch-note {
    grid-column: 1 / -1;
  }

  .page-home .batch-link {
    grid-column: 1 / -1;
    margin-top: var(--space-1);
  }
}

@media (min-width: 900px) {
  .page-home .hero {
    padding-top: var(--section-y-lg);
  }

  .page-home .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    row-gap: var(--space-8);
  }

  .page-home .hero-copy {
    grid-column: 1 / 13;
  }

  .page-home .hero-body {
    grid-column: 1 / 8;
  }

  .page-home .hero-side {
    grid-column: 9 / 13;
    border-top: none;
    padding-top: 0;
    border-left: var(--border-thin) solid var(--home-rule);
    padding-left: var(--space-4);
  }

  .page-home .section {
    padding: var(--section-y) 0;
  }

  .page-home .section-head {
    margin-bottom: var(--space-8);
  }

  .page-home .grid-meta {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .adapt-layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .path-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
    column-gap: var(--space-8);
  }

  .page-home .path-figure img {
    aspect-ratio: 3 / 4;
  }

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

  .page-home .section-close {
    padding: var(--section-y-lg) 0;
  }
}

@media (min-width: 1120px) {
  .page-home .hero-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .filter-btn,
  .page-home .entry-link,
  .page-home .path-link,
  .page-home .adapt-link,
  .page-home .batch-link,
  .page-home .batch-num,
  .page-home .batch-note {
    transition: none;
  }
}
</main>