.page-platform .plat-crumbs {
  padding-top: var(--space-4);
  padding-bottom: var(--space-2);
}

.page-platform .plat-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-platform .plat-crumbs__list a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 4px;
}

.page-platform .plat-crumbs__list a:hover,
.page-platform .plat-crumbs__list a:focus-visible {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
}

/* ---------- 首屏：深夜色块上的成组数字 ---------- */

.page-platform .plat-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--space-8);
}

.page-platform .plat-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-platform .plat-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

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

.page-platform .plat-hero__inner {
  position: relative;
}

.page-platform .plat-hero__lead {
  max-width: var(--measure);
}

.page-platform .plat-hero__eyebrow {
  color: var(--color-contrast-accent);
}

.page-platform .plat-hero__title {
  margin: var(--space-2) 0 var(--space-3);
  color: var(--color-contrast-ink);
}

.page-platform .plat-hero__lede {
  color: var(--color-contrast-ink);
  opacity: 0.84;
}

.page-platform .plat-hero__board {
  margin-top: var(--space-8);
}

.page-platform .plat-hero__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4) var(--space-6);
}

.page-platform .plat-hero__stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-platform .plat-hero__num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1.04;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-ink);
}

.page-platform .plat-hero__unit {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

.page-platform .plat-hero__batch {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-4);
}

.page-platform .plat-hero__batch-pre {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.22em;
  color: var(--color-contrast-accent);
}

.page-platform .plat-hero__batch-num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-ink);
}

.page-platform .plat-hero__batch-cycle {
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

@media (min-width: 600px) {
  .page-platform .plat-hero__row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 分组抬头 ---------- */

.page-platform .plat-group__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-platform .plat-group__title {
  margin: var(--space-2) 0 var(--space-2);
  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);
}

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

.page-platform .plat-group__desc a,
.page-platform .plat-metric__scope a,
.page-platform .plat-scope__text a,
.page-platform .plat-scope__contact a {
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.page-platform .plat-group__desc a:hover,
.page-platform .plat-scope__text a:hover,
.page-platform .plat-scope__contact a:hover {
  color: var(--color-primary);
}

/* ---------- 覆盖类指标网格 ---------- */

.page-platform .plat-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: var(--space-6) var(--space-4);
}

.page-platform .plat-metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-2);
}

.page-platform .plat-metric__id {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-platform .plat-metric__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-platform .plat-metric__value {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1.08;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

.page-platform .plat-metric__unit {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
}

.page-platform .plat-metric__scope {
  margin: 0;
  max-width: 48ch;
  font-size: var(--text-sm);
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.page-platform .plat-metric__cadence {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

/* ---------- 更新与批次 ---------- */

.page-platform .plat-update__metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6) var(--space-4);
  margin-bottom: var(--space-8);
}

.page-platform .plat-update__metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-platform .plat-update__metric-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
}

.page-platform .plat-update__metric-id {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-platform .plat-update__metric-name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-platform .plat-update__metric-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.12;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

.page-platform .plat-update__metric-scope {
  margin: 0;
  max-width: 46ch;
  font-size: var(--text-sm);
  line-height: 1.85;
  color: var(--color-ink-soft);
}

@media (min-width: 700px) {
  .page-platform .plat-update__metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-platform .plat-update__metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-platform .plat-update__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-platform .plat-update__label {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-platform .plat-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.page-platform .plat-flow__item {
  min-width: 0;
}

.page-platform .plat-flow__expander {
  width: 100%;
}

.page-platform .plat-flow__trigger {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  min-height: 44px;
  padding: var(--space-2) 0;
  background: transparent;
  border: 0;
  border-radius: var(--radius-sm);
  text-align: left;
  cursor: pointer;
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-heading);
}

.page-platform .plat-flow__trigger:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

.page-platform .plat-flow__index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
  flex: 0 0 auto;
}

.page-platform .plat-flow__name {
  flex: 1 1 auto;
}

.page-platform .plat-flow__expander .expander__mark {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  transition: transform 240ms ease-out;
}

.page-platform .plat-flow__panel {
  padding: 0 0 var(--space-2) var(--space-6);
}

.page-platform .plat-flow__panel p {
  margin: 0;
  max-width: 54ch;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

.page-platform .plat-update__figure {
  margin: 0;
}

.page-platform .plat-update__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-platform .plat-update__figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.8;
  color: var(--color-ink-muted);
}

@media (min-width: 900px) {
  .page-platform .plat-update__body {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--space-8);
    align-items: start;
  }
}

/* ---------- 终端与阅读 ---------- */

.page-platform .plat-terminal__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-platform .plat-terminal__visual-note {
  margin: var(--space-3) 0 0;
  max-width: 34ch;
  font-size: var(--text-xs);
  line-height: 1.8;
  color: var(--color-ink-muted);
}

.page-platform .plat-devices {
  display: flex;
  align-items: flex-end;
  gap: var(--space-4);
}

.page-platform .plat-device {
  background: var(--color-surface-deep);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-3);
}

.page-platform .plat-device--sm {
  width: 34%;
  max-width: 150px;
  aspect-ratio: 3 / 4;
}

.page-platform .plat-device--lg {
  width: 58%;
  max-width: 280px;
  aspect-ratio: 4 / 3;
}

.page-platform .plat-device__size {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

.page-platform .plat-terminal__metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-platform .plat-term {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-platform .plat-term__id {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-platform .plat-term__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-platform .plat-term__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.12;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink);
}

.page-platform .plat-term__scope {
  margin: 0;
  max-width: 44ch;
  font-size: var(--text-sm);
  line-height: 1.85;
  color: var(--color-ink-soft);
}

.page-platform .plat-terminal__figure {
  margin: var(--space-8) 0 0;
}

.page-platform .plat-terminal__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

.page-platform .plat-terminal__figure figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.8;
  color: var(--color-ink-muted);
}

@media (min-width: 900px) {
  .page-platform .plat-terminal__body {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: var(--space-8);
    align-items: start;
  }

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

/* ---------- 口径说明 ---------- */

.page-platform .plat-scope__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

.page-platform .plat-scope__text .plat-group__title {
  margin-top: var(--space-2);
}

.page-platform .plat-scope__figure {
  margin: 0;
  align-self: end;
}

.page-platform .plat-scope__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-platform .plat-scope__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--space-8);
    align-items: end;
  }
}

.page-platform .plat-scope__list {
  margin: var(--space-8) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6) var(--space-4);
}

.page-platform .plat-scope__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-platform .plat-scope__item-title {
  margin: 0;
  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-platform .plat-scope__item-text {
  margin: 0;
  max-width: 50ch;
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

@media (min-width: 700px) {
  .page-platform .plat-scope__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-platform .plat-scope__contact {
  margin: var(--space-8) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.9;
  color: var(--color-ink-soft);
}

/* ---------- 通用收束 ---------- */

.page-platform .plat-cover,
.page-platform .plat-terminal,
.page-platform .plat-scope {
  padding-bottom: var(--space-8);
}

@media (prefers-reduced-motion: reduce) {
  .page-platform .plat-flow__expander .expander__mark {
    transition: none;
  }
}
<<<END>>>

等等，我刚才多加了错误的结束标记，得去掉。重新输出一遍，这次只用正确的标记格式。