.page-home {
  --home-bar: calc(var(--border-thick) * 3);
  display: block;
  overflow-x: clip;
}

/* ---------- 页内索引条 ---------- */
.page-home .section-index {
  background: var(--color-surface-alt);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .section-index__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
}

.page-home .section-index__label {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  color: var(--color-ink-muted);
  padding-inline-end: var(--space-2);
  border-inline-end: var(--border-thin) solid var(--color-line);
}

.page-home .section-index__list {
  display: flex;
  flex: 1 1 auto;
  gap: var(--space-1);
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .section-index__list::-webkit-scrollbar {
  display: none;
}

.page-home .section-index__list a {
  display: block;
  flex: none;
  padding: 6px var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: var(--border-thin) solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-home .section-index__list a:hover,
.page-home .section-index__list a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-home .section-index__list a[aria-current] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-top: var(--space-8);
  padding-bottom: calc(var(--space-8) + var(--space-6));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--space-4)), 0 100%);
}

.page-home .hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .hero__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-home .hero__wash {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    112deg,
    color-mix(in srgb, var(--color-primary) 46%, transparent) 0%,
    color-mix(in srgb, var(--color-primary) 12%, transparent) 38%,
    color-mix(in srgb, var(--color-accent) 44%, transparent) 100%
  );
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
}

.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-contrast-ink);
  opacity: 0.82;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .hero .eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-contrast-accent);
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.page-home .hero__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.98;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  overflow-wrap: break-word;
}

.page-home .hero__lede {
  max-width: 42ch;
  margin: 0 0 var(--space-6);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-home .hero-ring {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .hero-ring__year {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.05em;
  color: var(--color-contrast-ink);
}

.page-home .hero-ring__year--now {
  color: var(--color-contrast-accent);
}

.page-home .hero-ring__rule {
  flex: 1 1 auto;
  min-width: var(--space-4);
  height: var(--home-bar);
  background: linear-gradient(90deg, var(--color-contrast-accent), var(--color-primary));
}

.page-home .hero-ring__caption {
  margin: var(--space-2) 0 var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

.page-home .hero-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .hero-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .hero-stat__num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-contrast-ink);
}

.page-home .hero-stat__label {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.74;
  text-align: end;
}

/* ---------- 六类维度 ---------- */
.page-home .dim-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: start;
}

.page-home .dim-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .dim-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-1) var(--space-3);
  align-items: baseline;
  padding: var(--space-3) var(--space-2) var(--space-3) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  border-inline-start: var(--home-bar) solid var(--dim, var(--color-line));
}

.page-home .dim-row--usage { --dim: var(--color-primary); }
.page-home .dim-row--member { --dim: var(--color-accent); }
.page-home .dim-row--change { --dim: var(--color-contrast-accent); }
.page-home .dim-row--history { --dim: var(--color-ink-soft); }
.page-home .dim-row--quarter { --dim: var(--color-primary-soft); }
.page-home .dim-row--compare { --dim: var(--color-highlight); }

.page-home .dim-row__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .dim-row__code {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-home .dim-row__desc {
  grid-column: 1 / -1;
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .dim-media {
  margin: 0;
  aspect-ratio: 4 / 3;
}

/* ---------- 媒体通用 ---------- */
.page-home .media {
  position: relative;
  display: block;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-contrast-surface);
}

.page-home .media .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .media__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  opacity: 0.86;
}

.page-home .media__text {
  position: absolute;
  inset: auto 0 0 0;
  margin: 0;
  padding: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-contrast-ink);
  z-index: 1;
}

/* ---------- 记录对照与归档 ---------- */
.page-home .records-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-home .records-lane {
  min-width: 0;
}

.page-home .records-lane__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .records-lane__intro {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .records-list {
  margin: 0 0 var(--space-3);
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .records-list .entry {
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .records-list .entry__code {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-home .records-list .entry__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

.page-home .records-list .entry__body {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .records-list .entry__meta {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-home .records-more {
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
}

.page-home .records-more a {
  color: var(--color-accent);
  text-decoration: none;
}

.page-home .quarter-media {
  margin: 0 0 var(--space-3);
  aspect-ratio: 1 / 1;
  max-width: 420px;
}

.page-home .quarter-track {
  margin: 0 0 var(--space-3);
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .quarter-track__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: baseline;
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .quarter-track__item--active {
  background: var(--color-primary-soft);
  padding-inline: var(--space-2);
  border-inline-start: var(--home-bar) solid var(--color-primary);
}

.page-home .quarter-track__code {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: -0.02em;
  color: var(--color-ink);
  white-space: nowrap;
}

.page-home .quarter-track__text {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 栏目折叠 ---------- */
.page-home .column-stack {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .column-fold {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .column-fold__summary {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-1);
  list-style: none;
  cursor: pointer;
}

.page-home .column-fold__summary::-webkit-details-marker { display: none; }
.page-home .column-fold__summary::marker { content: ""; }

.page-home .column-fold__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  color: var(--color-accent);
}

.page-home .column-fold[open] .column-fold__summary::after {
  content: "\2212";
}

.page-home .column-fold__idx {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-home .column-fold__text {
  flex: 1 1 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  min-width: 0;
}

.page-home .column-fold__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

.page-home .column-fold__body {
  padding: 0 var(--space-1) var(--space-4);
}

.page-home .column-fold__body p {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

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

.page-home .column-fold__links li {
  padding: var(--space-2) 0;
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .column-fold__links a {
  color: var(--color-accent);
  font-weight: var(--weight-heading);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 40%, transparent);
}

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

/* ---------- 核验说明 ---------- */
.page-home .verify-panel {
  position: relative;
  overflow: hidden;
  padding: var(--space-6) var(--space-4);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-radius: var(--radius-sm);
}

.page-home .verify-panel::after {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: 0;
  height: var(--home-bar);
  background: var(--color-accent);
  transform: skewY(-0.9deg);
  transform-origin: left bottom;
}

.page-home .verify-panel__head {
  position: relative;
  z-index: 1;
  max-width: 60ch;
}

.page-home .verify-panel__kicker {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-primary-ink);
  opacity: 0.76;
}

.page-home .verify-panel__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
  color: var(--color-primary-ink);
}

.page-home .verify-panel__lede {
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-primary-ink);
}

.page-home .verify-links {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
}

.page-home .verify-links li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
}

.page-home .verify-links a {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-primary-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary-ink) 60%, transparent);
  justify-self: start;
}

.page-home .verify-links a:hover,
.page-home .verify-links a:focus-visible {
  border-bottom-color: var(--color-primary-ink);
}

.page-home .verify-links span {
  font-size: var(--text-sm);
  color: var(--color-primary-ink);
  opacity: 0.82;
}

.page-home .verify-panel__foot {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-primary-ink);
  opacity: 0.86;
}

/* ---------- 焦点可见性 ---------- */
.page-home a:focus-visible,
.page-home summary:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

/* ---------- 中等屏 ---------- */
@media (min-width: 720px) {
  .page-home .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    border-top: 0;
  }

  .page-home .hero-stat {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: var(--space-1);
    padding: var(--space-3) 0 0;
    border-bottom: 0;
    border-top: var(--border-thin) solid var(--color-contrast-line);
  }

  .page-home .hero-stat__label {
    text-align: start;
  }

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

  .page-home .verify-links li {
    grid-template-columns: minmax(0, 18ch) minmax(0, 1fr);
    align-items: baseline;
    gap: var(--space-4);
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 960px) {
  .page-home .dim-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-home .records-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-home .quarter-media {
    max-width: none;
  }

  .page-home .hero-ring {
    gap: var(--space-4);
  }
}