.page-home {
  --home-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --home-line-dash: var(--border-thin) dashed var(--color-line);
  --home-line-dot: var(--border-thin) dotted var(--color-line);
  display: block;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  background: var(--color-surface);
}

.page-home .container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
  box-sizing: border-box;
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-2);
}

.page-home .section-title {
  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);
  margin: 0;
}

.page-home .section-lede {
  font-size: var(--text-base);
  color: var(--color-ink-soft);
  margin: var(--space-2) 0 0;
  max-width: 56ch;
}

.page-home .timestamp {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-primary-soft);
  padding-bottom: 2px;
  transition: gap 260ms var(--home-ease), border-color 260ms var(--home-ease);
}

.page-home .link-arrow::after {
  content: "→";
  font-family: var(--font-mono);
}

.page-home .link-arrow:hover {
  gap: var(--space-2);
  border-bottom-color: var(--color-primary);
}

.page-home :focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  padding-block: var(--space-6) var(--space-8);
  background:
    radial-gradient(130% 90% at 4% -12%, var(--color-primary-soft) 0%, transparent 58%),
    radial-gradient(90% 72% at 104% 2%, var(--color-highlight) 0%, transparent 62%),
    var(--color-surface);
  border-bottom: var(--home-line-dash);
}

.page-home .home-hero__kicker {
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.page-home .home-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  max-width: 15ch;
}

.page-home .home-hero__lede {
  margin: var(--space-3) 0 0;
  max-width: 50ch;
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-home .home-figures {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: var(--space-3) 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-2);
  border-top: var(--home-line-dash);
  border-bottom: var(--home-line-dash);
}

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

.page-home .home-figures__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.page-home .home-figures__label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .home-grid {
  margin-top: var(--space-6);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

/* ---------- 左栏捷径索引 ---------- */

.page-home .home-rail {
  min-width: 0;
  padding: var(--space-3);
  border: var(--home-line-dash);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-surface-alt) 72%, transparent);
}

.page-home .home-rail__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
  text-transform: uppercase;
}

.page-home .home-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--space-1);
  display: flex;
  flex-direction: row;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-home .home-rail__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-home .home-rail__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: var(--space-2);
  row-gap: 2px;
  min-width: 168px;
  padding: var(--space-2) var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
  text-decoration: none;
  color: inherit;
  transition: background-color 260ms var(--home-ease), border-color 260ms var(--home-ease), transform 260ms var(--home-ease);
}

.page-home .home-rail__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-home .home-rail__label {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
}

.page-home .home-rail__desc {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------- 右栏更新卡片流 ---------- */

.page-home .home-feed {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-home .home-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-home .home-card__media {
  margin: 0;
  background: var(--color-surface-deep);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .home-card__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-home .home-card__media--wide img {
  aspect-ratio: 3 / 2;
}

.page-home .home-card__body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-home .home-card__meta {
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.page-home .home-card__stamp {
  display: inline-block;
  padding: 3px var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
}

.page-home .home-card__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.32;
  color: var(--color-ink);
}

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

.page-home .home-card--lead {
  border-color: color-mix(in srgb, var(--color-primary) 34%, var(--color-line));
}

.page-home .home-card--slip {
  justify-content: center;
  background: linear-gradient(160deg, var(--color-primary-soft) 0%, var(--color-surface) 68%);
}

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

.page-home .home-card__slip-num {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.page-home .home-card__slip-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* ---------- 版本说明 ---------- */

.page-home .home-notes {
  padding-block: var(--space-8);
  background: var(--color-surface-alt);
  border-bottom: var(--home-line-dot);
}

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

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

.page-home .home-notes__body p {
  margin: 0 0 var(--space-3);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: 1.83;
  color: var(--color-ink-soft);
}

.page-home .home-notes__body p:last-of-type {
  margin-bottom: var(--space-4);
}

/* ---------- 六条入口 ---------- */

.page-home .home-doors {
  padding-block: var(--space-8);
  background: var(--color-surface);
}

.page-home .home-doors__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

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

.page-home .home-group {
  min-width: 0;
  padding-top: var(--space-2);
  border-top: var(--home-line-dash);
}

.page-home .home-group__title {
  margin: 0 0 var(--space-2);
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-home .home-group__idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-accent);
}

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

.page-home .home-entry {
  border-bottom: var(--home-line-dot);
}

.page-home .home-entry__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-2);
  row-gap: 4px;
  padding: var(--space-3) var(--space-2);
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-sm);
  transition: background-color 260ms var(--home-ease);
}

.page-home .home-entry__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  padding-top: 4px;
}

.page-home .home-entry__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-primary-soft);
  justify-self: start;
}

.page-home .home-entry__desc {
  grid-column: 2;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-home .home-entry .timestamp {
  grid-column: 2;
  margin-top: var(--space-1);
}

/* ---------- 案例合集条 ---------- */

.page-home .home-cases {
  padding-block: var(--space-8);
  background: var(--color-surface-alt);
}

.page-home .home-cases__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-surface) 52%, var(--color-highlight) 100%);
  box-shadow: var(--shadow-1);
}

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

.page-home .home-cases__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 32 / 21;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}

.page-home .home-cases__body {
  min-width: 0;
  padding: var(--space-2) var(--space-3) var(--space-4);
}

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

.page-home .home-cases__text {
  margin: 0 0 var(--space-3);
  max-width: 54ch;
  font-size: var(--text-base);
  line-height: 1.83;
  color: var(--color-ink-soft);
}

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

.page-home .home-cases__stat {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .home-cases__num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

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

/* ---------- 收尾路径 ---------- */

.page-home .home-outro {
  padding-block: var(--space-8);
  background: var(--color-surface);
  border-top: var(--home-line-dot);
}

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

.page-home .home-route {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  position: relative;
}

.page-home .home-route::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 14px;
  bottom: 14px;
  border-left: var(--home-line-dash);
}

.page-home .home-route__node {
  position: relative;
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
}

.page-home .home-route__node::before {
  content: "";
  position: absolute;
  left: 0;
  top: calc(var(--space-2) + 0.5em);
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-surface);
  box-shadow: 0 0 0 var(--border-thin) var(--color-line);
}

.page-home .home-route__link {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: color 240ms var(--home-ease), border-color 240ms var(--home-ease);
}

.page-home .home-route__link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-home .home-route__link--current,
.page-home .home-route__link--exit {
  color: var(--color-ink-muted);
  cursor: default;
}

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

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

.page-home .home-route__sub:hover {
  border-bottom-color: var(--color-accent);
}

.page-home .home-route__sep {
  color: var(--color-ink-muted);
  padding-inline: 4px;
}

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

.page-home .home-outro__figure {
  margin: 0;
  padding: var(--space-2);
  border: var(--home-line-dash);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
}

.page-home .home-outro__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
}

.page-home .home-outro__caption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .home-outro__contact {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-highlight);
}

.page-home .home-outro__kicker {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.page-home .home-outro__text {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
}

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

/* ---------- 交互 ---------- */

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

.page-home .home-entry__link:hover {
  background: color-mix(in srgb, var(--color-primary-soft) 65%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-rail__link,
  .page-home .home-entry__link,
  .page-home .link-arrow,
  .page-home .home-route__link {
    transition: none;
  }
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-home .home-hero__lede {
    font-size: var(--text-xl);
  }

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

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

  .page-home .home-notes__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-home .home-doors__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-home .home-cases__panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-home .home-cases__body {
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-2);
  }

  .page-home .home-outro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-6);
  }
}

@media (min-width: 768px) {
  .page-home .container {
    padding-inline: var(--space-4);
  }

  .page-home .home-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-home .home-rail__item {
    flex: 0 0 auto;
    border-bottom: var(--home-line-dot);
  }

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

  .page-home .home-rail__link {
    min-width: 0;
    padding: var(--space-2) var(--space-2);
    border-color: transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    box-shadow: none;
  }
}

@media (min-width: 1024px) {
  .page-home .home-hero {
    padding-block: var(--space-8) var(--section-y-lg);
  }

  .page-home .home-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-home .home-rail {
    position: sticky;
    top: var(--space-4);
  }

  .page-home .home-feed {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-home .home-card--lead {
    grid-column: 1 / -1;
  }

  .page-home .home-card--lead .home-card__media img {
    aspect-ratio: 12 / 5;
  }

  .page-home .home-notes,
  .page-home .home-doors,
  .page-home .home-cases,
  .page-home .home-outro {
    padding-block: var(--section-y);
  }
}