.page-home {
  --ph-rail-width: clamp(200px, 22%, 320px);
  --ph-cut: var(--space-6);
  display: block;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-home *,
.page-home *::before,
.page-home *::after {
  box-sizing: border-box;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏拼贴 ---------- */

.page-home .hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--color-surface);
  border-bottom: var(--border-thick) solid var(--color-line);
}

.page-home .hero__rail {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

.page-home .hero__rail .eyebrow {
  color: var(--color-contrast-accent);
}

.page-home .hero__rail-note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
  max-width: 34ch;
}

.page-home .season-scale {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(104px, 1fr);
  gap: 0;
  overflow-x: auto;
}

.page-home .season-scale__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-2);
  border-left: var(--border-thin) solid var(--color-contrast-line);
  min-width: 0;
}

.page-home .season-scale__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

.page-home .season-scale__name {
  font-size: var(--text-sm);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.page-home .season-scale__bar {
  display: block;
  height: var(--space-1);
  background: var(--color-contrast-line);
}

.page-home .season-scale__item--current {
  color: var(--color-contrast-accent);
}

.page-home .season-scale__item--current .season-scale__num {
  color: var(--color-contrast-accent);
}

.page-home .season-scale__item--current .season-scale__bar {
  background: var(--color-contrast-accent);
}

@media (min-width: 960px) {
  .page-home .hero {
    grid-template-columns: var(--ph-rail-width) minmax(0, 1fr);
  }

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

  .page-home .season-scale {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    overflow-x: visible;
  }

  .page-home .season-scale__item {
    grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-left: 0;
    border-bottom: var(--border-thin) solid var(--color-contrast-line);
  }

  .page-home .season-scale__bar {
    height: var(--border-thin);
    background: var(--color-contrast-line);
  }
}

.page-home .hero__body {
  padding: var(--space-6) var(--space-4) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

@media (min-width: 960px) {
  .page-home .hero__body {
    padding: var(--space-8) var(--space-8) var(--space-8) var(--space-6);
  }
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  line-height: 0.98;
  letter-spacing: -0.02em;
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  max-width: 16ch;
  overflow-wrap: break-word;
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

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

.page-home .hero__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
  margin-top: var(--space-2);
  padding-top: var(--space-4);
  border-top: var(--border-thick) solid var(--color-line);
}

@media (min-width: 720px) {
  .page-home .hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-home .figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.page-home .figure__num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  line-height: 0.9;
  font-weight: var(--weight-heading);
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.page-home .figure--accent .figure__num {
  color: var(--color-accent);
}

.page-home .figure__unit {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  letter-spacing: 0.02em;
}

.page-home .hero__media {
  margin: var(--space-4) 0 0;
  overflow: hidden;
}

.page-home .hero__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  clip-path: polygon(0 var(--ph-cut), 100% 0, 100% 100%, 0 100%);
}

.page-home .hero__media .media-frame__caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 区块头 ---------- */

.page-home .ph-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thick) solid var(--color-ink);
  margin-bottom: var(--space-6);
}

.page-home .ph-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  letter-spacing: 0.005em;
}

@media (min-width: 860px) {
  .page-home .ph-head {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: var(--gutter);
    align-items: end;
  }

  .page-home .ph-head h2 {
    font-size: var(--text-2xl);
  }
}

.page-home .ph-head .eyebrow {
  color: var(--color-ink-muted);
}

/* ---------- 时间轴 ---------- */

.page-home .timeline__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(120px, 1fr);
  gap: var(--gutter);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-6);
}

@media (min-width: 900px) {
  .page-home .timeline__track {
    grid-auto-flow: row;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow-x: visible;
    padding-bottom: 0;
  }
}

.page-home .tick {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-line);
  min-width: 0;
}

.page-home .tick--current {
  border-top-color: var(--color-accent);
}

.page-home .tick__bar {
  display: block;
  height: var(--border-thick);
  width: var(--space-8);
  background: var(--color-line);
}

.page-home .tick--current .tick__bar {
  background: var(--color-accent);
  width: 100%;
}

.page-home .tick__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  white-space: nowrap;
}

.page-home .tick__meta {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .timeline__table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-6);
}

.page-home .timeline__table caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  padding-bottom: var(--space-2);
}

.page-home .timeline__table th,
.page-home .timeline__table td {
  text-align: left;
  padding: var(--space-2) var(--space-3) var(--space-2) var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  vertical-align: top;
}

.page-home .timeline__table thead th {
  background: var(--color-surface-alt);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.page-home .timeline__table tbody th {
  font-family: var(--font-mono);
  font-weight: var(--weight-body);
  color: var(--color-ink);
  white-space: nowrap;
}

.page-home .timeline__table tbody tr:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-home .timeline__table tbody tr:hover {
  background: var(--color-highlight);
}

.page-home .timeline__table tfoot th,
.page-home .timeline__table tfoot td {
  border-top: var(--border-thick) solid var(--color-ink);
  border-bottom: 0;
  font-family: var(--font-mono);
  color: var(--color-ink);
}

.page-home .timeline__texture {
  margin: 0;
  overflow: hidden;
}

.page-home .timeline__texture img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

.page-home .timeline__texture .media-frame__caption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 四个入口 ---------- */

.page-home .columns__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}

.page-home .entry {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  min-width: 0;
}

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

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

.page-home .entry--products {
  background: var(--color-surface);
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-home .entry--about {
  background: var(--color-primary-soft);
}

@media (min-width: 1000px) {
  .page-home .entry--scenarios {
    grid-column: 1 / span 7;
  }

  .page-home .entry--events {
    grid-column: 8 / span 5;
  }

  .page-home .entry--products {
    grid-column: 1 / -1;
  }

  .page-home .entry--about {
    grid-column: 4 / span 9;
  }
}

.page-home .entry .eyebrow {
  color: var(--color-ink-muted);
}

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

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

.page-home .entry__cta {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-accent);
  text-decoration: none;
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thick) solid var(--color-accent);
}

.page-home .entry__cta:hover {
  color: var(--color-focus);
  border-bottom-color: var(--color-focus);
}

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

.page-home .matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--border-thin);
  background: var(--color-line);
  border: var(--border-thin) solid var(--color-line);
}

.page-home .matrix__cell {
  background: var(--color-surface);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.page-home .matrix__num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

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

.page-home .catalog {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .catalog__item {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-ink) 16%, transparent);
  font-size: var(--text-sm);
}

.page-home .catalog__item:last-child {
  border-bottom: 0;
}

.page-home .catalog__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .catalog__name {
  display: block;
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-home .catalog__meta {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  margin-top: 2px;
}

.page-home .ph-quote {
  margin: 0;
  padding-left: var(--space-4);
  border-left: var(--border-thick) solid var(--color-primary);
  font-size: var(--text-lg);
  line-height: 1.4;
  color: var(--color-ink);
  max-width: var(--measure);
}

/* ---------- 修订记录 ---------- */

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

@media (min-width: 900px) {
  .page-home .revisions__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-8);
    align-items: start;
  }
}

.page-home .revisions__media {
  margin: 0;
  overflow: hidden;
}

.page-home .revisions__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .revisions__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

.page-home .revisions__body h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

@media (min-width: 860px) {
  .page-home .revisions__body h2 {
    font-size: var(--text-2xl);
  }
}

.page-home .revisions__body p {
  margin: 0;
  font-size: var(--text-base);
  color: var(--color-ink-soft);
}

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

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

@media (min-width: 720px) {
  .page-home .revision {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr) auto;
    gap: var(--gutter);
    align-items: baseline;
  }
}

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

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

.page-home .revision .stamp {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-home .revision:hover .stamp {
  color: var(--color-accent);
}

.page-home .revision .stamp--revised {
  color: var(--color-accent);
}

.page-home .revisions__note {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: var(--leading-body);
}

.page-home .revisions__note a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-accent);
}

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

/* ---------- 两端一致 ---------- */

.page-home .parity__panel {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 900px) {
  .page-home .parity__panel {
    padding: var(--space-8);
  }
}

.page-home .parity__panel h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

@media (min-width: 860px) {
  .page-home .parity__panel h2 {
    font-size: var(--text-2xl);
  }
}

.page-home .parity__panel .eyebrow {
  color: var(--color-contrast-accent);
}

.page-home .parity__lede {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-home .parity__list {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

@media (min-width: 720px) {
  .page-home .parity__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

.page-home .parity__row dt {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-home .parity__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
  white-space: nowrap;
}

.page-home .parity__foot {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
  max-width: var(--measure);
}

/* ---------- 尾部索引带 ---------- */

.page-home .tail {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-home .tail__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-home .tail__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.page-home .tail__inner {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.page-home .tail__inner .eyebrow {
  color: var(--color-contrast-accent);
}

.page-home .tail__title {
  margin: var(--space-2) 0 var(--space-6);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-ink);
}

@media (min-width: 860px) {
  .page-home .tail__title {
    font-size: var(--text-2xl);
  }
}

.page-home .tail__nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

@media (min-width: 860px) {
  .page-home .tail__nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-home .tail__link {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-3) var(--space-4) 0;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  color: var(--color-contrast-ink);
  text-decoration: none;
  min-width: 0;
}

@media (min-width: 860px) {
  .page-home .tail__link {
    border-bottom: 0;
    border-right: var(--border-thin) solid var(--color-contrast-line);
    padding-right: var(--space-4);
    padding-left: var(--space-3);
  }

  .page-home .tail__link:first-child {
    padding-left: 0;
  }

  .page-home .tail__link:last-child {
    border-right: 0;
  }
}

.page-home .tail__link:hover,
.page-home .tail__link:focus-visible {
  color: var(--color-contrast-accent);
}

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

.page-home .tail__link-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: color-mix(in srgb, var(--color-contrast-ink) 52%, transparent);
}

.page-home .tail__link-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-home .tail__link-desc {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}