.page-home {
  --home-hang: calc(var(--space-4) * -1);
  --home-rule: var(--border-thin) solid var(--color-line);
  --home-y: var(--section-y);
}

/* ============ 首屏 ============ */
.page-home .hero {
  background: var(--color-surface);
  padding: var(--space-8) 0 var(--home-y);
}

.page-home .hero__context {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.1em;
  padding-bottom: var(--space-3);
  border-bottom: var(--home-rule);
  margin: 0 0 var(--space-6);
}

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

.page-home .hero__title {
  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);
  margin: 0;
  display: flex;
  flex-direction: column;
}

.page-home .hero__title-line {
  display: block;
}

.page-home .hero__title-sub {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: var(--weight-body);
  letter-spacing: 0;
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin-top: var(--space-3);
}

.page-home .hero__lede {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: var(--space-4) 0 0;
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
}

.page-home .hero__media {
  margin: 0;
}

.page-home .hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-deep);
}

.page-home .hero__scale {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-2);
  border-left: var(--home-rule);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-home .hero__scale a {
  display: block;
  text-decoration: none;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  padding: var(--space-1) 0;
  border-radius: var(--radius-sm);
}

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

.page-home .hero__scale-num {
  display: block;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.page-home .hero__scale-label {
  display: block;
}

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

.page-home .hero__figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  align-items: flex-start;
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-2);
}

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

.page-home .hero__figure-num {
  font-family: var(--font-heading);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-ink);
}

.page-home .hero__figure-num--sm {
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
}

.page-home .hero__figure-label {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.04em;
}

/* ============ 章节标记 ============ */
.page-home .section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.page-home .section-num {
  flex: 0 0 auto;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.12em;
}

.page-home .section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: 0;
}

/* ============ 01 置顶两条 ============ */
.page-home .pinned__lede {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-6);
}

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

.page-home .pinned__item {
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
}

.page-home .pinned__item--b {
  border-left-color: var(--color-accent);
}

.page-home .pinned__index {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-home .pinned__item--b .pinned__index {
  color: var(--color-accent);
}

.page-home .pinned__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
}

.page-home .pinned__fields {
  margin: 0 0 var(--space-4);
  display: grid;
  gap: var(--space-2);
}

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

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

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

/* ============ 02 安装记录抽屉 ============ */
.page-home .records__lede {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-4);
}

.page-home .records__drawer {
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface-alt);
}

.page-home .records__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  cursor: pointer;
  list-style: none;
  border-bottom: var(--border-thin) solid transparent;
}

.page-home .records__drawer[open] .records__summary {
  border-bottom-color: var(--color-line);
}

.page-home .records__summary::-webkit-details-marker {
  display: none;
}

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

.page-home .records__summary-title {
  font-size: var(--text-sm);
  color: var(--color-ink);
  letter-spacing: 0.06em;
}

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

.page-home .records__body {
  padding: var(--space-3);
  overflow-x: auto;
}

.page-home .records__table {
  min-width: 640px;
}

.page-home .records__drawer-note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .records__fig {
  margin: var(--space-6) 0 0;
}

.page-home .records__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
}

.page-home .records__cap {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .records__more {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .records__more a,
.page-home .matrix__note a,
.page-home .paths__outro a,
.page-home .outro__text a,
.page-home .outro__steps a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: var(--border-thin);
  text-underline-offset: 3px;
}

.page-home .records__more a:hover,
.page-home .matrix__note a:hover,
.page-home .paths__outro a:hover,
.page-home .outro__steps a:hover {
  background: var(--color-highlight);
}

/* ============ 03 机型适配矩阵 ============ */
.page-home .matrix__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-home .matrix__table-wrap {
  overflow-x: auto;
}

.page-home .matrix__table {
  min-width: 640px;
}

.page-home .matrix__row--flag th,
.page-home .matrix__row--flag td {
  background: var(--color-primary-soft);
}

.page-home .matrix__fig {
  margin: 0;
}

.page-home .matrix__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
}

.page-home .matrix__cap {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .matrix__note {
  max-width: var(--measure);
  margin: var(--space-6) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ============ 04 栏目路径 ============ */
.page-home .paths__lede {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-6);
}

.page-home .paths__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-home .paths__node {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  border-top: var(--border-thick) solid var(--color-ink);
  padding-top: var(--space-3);
}

.page-home .paths__idx {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-home .paths__link {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  text-decoration: none;
  justify-self: start;
  border-radius: var(--radius-sm);
}

.page-home .paths__link:hover,
.page-home .paths__link:focus-visible {
  background: var(--color-highlight);
}

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

.page-home .paths__outro {
  max-width: var(--measure);
  margin: var(--space-8) 0 0;
  padding-top: var(--space-3);
  border-top: var(--home-rule);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ============ 05 维护节奏（反色区） ============ */
.page-home .cadence {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--home-y) 0;
}

.page-home .cadence .section-num {
  color: var(--color-contrast-accent);
}

.page-home .cadence .section-title {
  color: var(--color-contrast-ink);
}

.page-home .cadence__lede {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.82;
  margin: 0 0 var(--space-6);
}

.page-home .cadence__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-home .cadence__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .cadence__idx {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-contrast-accent);
}

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

.page-home .cadence__text {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.84;
}

.page-home .cadence__note {
  margin: var(--space-8) 0 0;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

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

.page-home .cadence__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
  opacity: 0.42;
}

/* ============ 收尾 ============ */
.page-home .outro {
  background: var(--color-surface);
  padding: var(--home-y) 0;
}

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

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

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

.page-home .outro__aside {
  border-top: var(--border-thick) solid var(--color-accent);
  background: var(--color-surface-alt);
  padding: var(--space-3);
}

.page-home .outro__aside-label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.page-home .outro__steps {
  margin: 0;
  padding-left: var(--space-4);
  display: grid;
  gap: var(--space-2);
}

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

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-home .hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .hero__figure--lead {
    grid-column: 1 / 3;
  }

  .page-home .pinned__field {
    grid-template-columns: 7em minmax(0, 1fr);
    gap: var(--space-2);
    align-items: baseline;
  }

  .page-home .cadence__item {
    grid-template-columns: 7em minmax(0, 1fr);
    gap: var(--space-3);
  }

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

@media (min-width: 900px) {
  .page-home .section-head {
    padding-left: var(--space-4);
  }

  .page-home .section-num {
    margin-left: var(--home-hang);
  }

  .page-home .hero__grid {
    position: relative;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--gutter);
    row-gap: var(--space-6);
  }

  .page-home .hero__lead {
    grid-column: 1 / 8;
    grid-row: 1;
  }

  .page-home .hero__media {
    grid-column: 8 / 13;
    grid-row: 2;
    margin-top: calc(var(--space-6) * -1);
  }

  .page-home .hero__scale {
    grid-column: 8 / 9;
    grid-row: 1;
    align-self: start;
  }

  .page-home .hero__figures {
    grid-column: 9 / 13;
    grid-row: 1;
    margin-left: calc(var(--space-4) * -1);
    position: relative;
    z-index: 2;
  }

  .page-home .pinned__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-home .pinned__item--b {
    margin-top: var(--space-8);
  }

  .page-home .matrix__grid {
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr);
    align-items: start;
    column-gap: var(--gutter);
  }

  .page-home .matrix__fig {
    margin-top: calc(var(--space-8) * -1);
  }

  .page-home .cadence__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: var(--gutter);
  }

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

  .page-home .paths__node:nth-child(1) { grid-column: 1 / 6; }
  .page-home .paths__node:nth-child(2) { grid-column: 7 / 13; }
  .page-home .paths__node:nth-child(3) { grid-column: 2 / 7; }
  .page-home .paths__node:nth-child(4) { grid-column: 8 / 13; }
  .page-home .paths__node:nth-child(5) { grid-column: 1 / 6; }
  .page-home .paths__node:nth-child(6) { grid-column: 6 / 12; }

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

@media (prefers-reduced-motion: reduce) {
  .page-home [data-reveal] {
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
}
<<<END>>>