.page-platform {
  position: relative;
}

.page-platform::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, var(--color-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-line) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.36;
  pointer-events: none;
}

/* ---------- 首屏 ---------- */

.page-platform .pf-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
  border-bottom: 1px dotted var(--color-contrast-line);
}

.page-platform .pf-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-platform .pf-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 0;
  display: block;
}

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

.page-platform .pf-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: var(--space-8);
  padding-bottom: var(--space-6);
  color: var(--color-contrast-ink);
}

.page-platform .pf-hero__coord {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-platform .pf-hero__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 1.04;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-platform .pf-hero__lede {
  max-width: 48ch;
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.88;
}

.page-platform .pf-figures {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  border-top: 1px dotted var(--color-contrast-line);
}

.page-platform .pf-figures__item {
  padding: var(--space-3) 0;
  border-bottom: 1px dotted var(--color-contrast-line);
}

.page-platform .pf-figures__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-platform .pf-figures__value {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-figure);
  line-height: 1.05;
  color: var(--color-contrast-ink);
}

.page-platform .pf-figures__unit {
  margin-left: 0.22em;
  font-size: var(--text-lg);
  color: var(--color-contrast-accent);
}

.page-platform .pf-figures__note {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.74;
}

.page-platform .pf-jump {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.page-platform .pf-jump a {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-contrast-accent);
}

.page-platform .pf-jump a:hover,
.page-platform .pf-jump a:focus-visible {
  color: var(--color-contrast-accent);
}

@media (min-width: 760px) {
  .page-platform .pf-figures {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .page-platform .pf-figures__item {
    padding: var(--space-3) var(--space-3) var(--space-3) 0;
  }
}

@media (min-width: 1040px) {
  .page-platform .pf-hero__inner {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .page-platform .pf-figures {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-platform .pf-figures__item {
    padding: var(--space-3);
    border-bottom: 0;
    border-right: 1px dotted var(--color-contrast-line);
  }

  .page-platform .pf-figures__item:first-child {
    padding-left: 0;
  }

  .page-platform .pf-figures__item:last-child {
    border-right: 0;
  }
}

/* ---------- 指标区块通用 ---------- */

.page-platform .pf-metrics {
  position: relative;
}

.page-platform .pf-rows {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  border-top: 1px dotted var(--color-line);
}

.page-platform .pf-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  grid-template-areas:
    "no name"
    "no value"
    "no desc";
  column-gap: var(--space-2);
  row-gap: var(--space-1);
  padding: var(--space-3) 0 var(--space-3) var(--space-1);
  border-bottom: 1px dotted var(--color-line);
  border-left: 2px solid transparent;
  transition: background-color 160ms linear, border-left-color 160ms linear;
}

.page-platform .pf-row:hover {
  background-color: var(--color-surface-alt);
  border-left-color: var(--color-primary);
}

.page-platform .pf-row__no {
  grid-area: no;
  align-self: start;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}

.page-platform .pf-row__no:hover,
.page-platform .pf-row__no:focus-visible {
  color: var(--color-accent);
}

.page-platform .pf-row__name {
  grid-area: name;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-platform .pf-row__value {
  grid-area: value;
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--color-primary);
}

.page-platform .pf-row__unit {
  margin-left: 0.2em;
  font-size: var(--text-base);
  color: var(--color-ink-muted);
}

.page-platform .pf-row__desc {
  grid-area: desc;
  margin: 0;
  max-width: 60ch;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-platform .pf-row__desc a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}

.page-platform .pf-row__desc a:hover,
.page-platform .pf-row__desc a:focus-visible {
  color: var(--color-focus);
}

@media (min-width: 960px) {
  .page-platform .pf-row {
    grid-template-columns: 48px minmax(150px, 1fr) 190px minmax(0, 1.15fr);
    grid-template-areas: "no name value desc";
    align-items: baseline;
    column-gap: var(--space-4);
  }

  .page-platform .pf-row__no {
    padding-top: 0;
  }
}

/* ---------- 图与分栏 ---------- */

.page-platform .pf-figure {
  margin: var(--space-6) 0 0;
}

.page-platform .pf-split {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 1000px) {
  .page-platform .pf-split {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-platform .pf-split .pf-rows {
    margin-top: var(--space-6);
  }

  .page-platform .pf-split .pf-figure {
    margin-top: var(--space-6);
  }
}

/* ---------- 可用性补充块 ---------- */

.page-platform .pf-panel {
  margin-top: var(--space-6);
}

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

/* ---------- 口径说明 ---------- */

.page-platform .pf-cal__grid {
  display: grid;
  margin-top: var(--space-6);
  border-top: 1px dotted var(--color-line);
}

.page-platform .pf-cal__item {
  padding: var(--space-3) 0;
  border-bottom: 1px dotted var(--color-line);
}

.page-platform .pf-cal__item:target {
  background-color: var(--color-highlight);
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-2);
}

.page-platform .pf-cal__no {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-platform .pf-cal__text {
  margin: 0;
  max-width: 62ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

@media (min-width: 860px) {
  .page-platform .pf-cal__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-6);
  }
}

/* ---------- 相关路径 ---------- */

.page-platform .pf-next__grid {
  display: grid;
  margin-top: var(--space-6);
  border-top: 1px dotted var(--color-line);
}

.page-platform .pf-next__item {
  padding: var(--space-4) 0;
  border-bottom: 1px dotted var(--color-line);
}

.page-platform .pf-next__tag {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-platform .pf-next__name {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
}

.page-platform .pf-next__name a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-line);
  padding-bottom: 2px;
}

.page-platform .pf-next__name a:hover,
.page-platform .pf-next__name a:focus-visible {
  border-bottom-color: var(--color-accent);
  color: var(--color-accent);
}

.page-platform .pf-next__desc {
  margin: var(--space-2) 0 0;
  max-width: 36ch;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 820px) {
  .page-platform .pf-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: var(--space-6);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-platform .pf-row {
    transition: none;
  }
}