.page-pricing [id] {
  scroll-margin-top: calc(var(--space-8) * 1.5);
}

/* ---------- 首屏 ---------- */
.page-pricing .pricing-hero__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-4) 0 var(--space-6);
  max-width: 14em;
}

.page-pricing .pricing-hero__row {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

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

.page-pricing .pricing-hero__media {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-hero__media .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-pricing .pricing-hero__figures {
  list-style: none;
  margin: 0 0 var(--space-6);
  padding: var(--space-4) 0 0;
  border-top: var(--border-thin) solid var(--color-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
}

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

.page-pricing .pricing-hero__num {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-figure);
  line-height: 1;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.page-pricing .pricing-hero__figlabel {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.3;
}

.page-pricing .pricing-hero__tiers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-hero__tiers li {
  padding: var(--space-3) var(--space-2) 0 0;
  border-right: var(--border-thin) solid var(--color-line);
  min-width: 0;
}

.page-pricing .pricing-hero__tiers li:nth-child(2n) {
  border-right: 0;
  padding-right: 0;
}

.page-pricing .pricing-hero__tiers a {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color 160ms ease, color 160ms ease;
}

.page-pricing .pricing-hero__tiers a:hover,
.page-pricing .pricing-hero__tiers a:focus-visible {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
}

@media (min-width: 760px) {
  .page-pricing .pricing-hero__row {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-6);
    align-items: end;
  }

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

  .page-pricing .pricing-hero__tiers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-pricing .pricing-hero__tiers li:nth-child(2n) {
    border-right: var(--border-thin) solid var(--color-line);
    padding-right: var(--space-2);
  }

  .page-pricing .pricing-hero__tiers li:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

/* ---------- 页内定位 ---------- */
.page-pricing .pricing-toc {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  padding: var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-toc__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-pricing .pricing-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
}

.page-pricing .pricing-toc__link {
  display: inline-block;
  padding: 4px var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-pricing .pricing-toc__link:hover,
.page-pricing .pricing-toc__link:focus-visible {
  color: var(--color-ink);
}

.page-pricing .pricing-toc__link.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- 分档依据 ---------- */
.page-pricing .pricing-basis__grid {
  display: grid;
  gap: var(--space-4);
}

.page-pricing .pricing-basis__aside {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-4);
}

.page-pricing .pricing-basis__aside .chapter-no {
  margin: 0 0 var(--space-3);
  font-size: var(--text-2xl);
  color: var(--color-primary-soft);
}

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

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

.page-pricing .pricing-basis__main p:last-child {
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .page-pricing .pricing-basis__grid {
    grid-template-columns: 4fr 8fr;
    gap: var(--space-6);
  }

  .page-pricing .pricing-basis__aside {
    padding: var(--space-8) var(--space-6);
  }
}

/* ---------- 四档展开 ---------- */
.page-pricing .pricing-tiers__heading {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

.page-pricing .pricing-tier {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface);
  transition: background-color 180ms ease;
}

.page-pricing .pricing-tier + .pricing-tier {
  margin-top: var(--space-4);
}

.page-pricing .pricing-tier:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-pricing .pricing-tier__aside {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: background-color 180ms ease, color 180ms ease;
}

.page-pricing .pricing-tier__no {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-primary-soft);
  transition: color 180ms ease;
}

.page-pricing .pricing-tier__name {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
  transition: color 180ms ease;
}

.page-pricing .pricing-tier__tag {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.4;
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
  transition: color 180ms ease;
}

.page-pricing .pricing-tier__main {
  padding: var(--space-4) var(--space-3);
  min-width: 0;
}

.page-pricing .pricing-tier__fields {
  margin: 0;
  display: grid;
}

.page-pricing .pricing-tier__field {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-tier__field:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-pricing .pricing-tier__field:last-child {
  padding-bottom: 0;
}

.page-pricing .pricing-tier__key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

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

.page-pricing .pricing-tier__val a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 1px;
}

.page-pricing .pricing-tier__val a:hover,
.page-pricing .pricing-tier__val a:focus-visible {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-pricing .pricing-tier__media {
  position: relative;
  margin: var(--space-4) 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  max-width: 32em;
}

.page-pricing .pricing-tier__media .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

@media (min-width: 700px) {
  .page-pricing .pricing-tier__field {
    grid-template-columns: 7em minmax(0, 1fr);
    gap: var(--space-3);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-pricing .pricing-tier {
    grid-template-columns: 4fr 8fr;
  }

  .page-pricing .pricing-tier__aside {
    padding: var(--space-8) var(--space-4);
    gap: var(--space-2);
  }

  .page-pricing .pricing-tier__main {
    padding: var(--space-6);
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-pricing .pricing-tier:hover .pricing-tier__aside {
    background: var(--color-primary-soft);
    color: var(--color-ink);
  }

  .page-pricing .pricing-tier:hover .pricing-tier__name {
    color: var(--color-ink);
  }

  .page-pricing .pricing-tier:hover .pricing-tier__no {
    color: var(--color-primary);
  }

  .page-pricing .pricing-tier:hover .pricing-tier__tag {
    color: var(--color-ink-soft);
  }
}

/* ---------- 选择建议 ---------- */
.page-pricing .pricing-choose__head {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.page-pricing .pricing-choose__head .chapter-no {
  margin: 0;
  font-size: var(--text-2xl);
  line-height: 1;
}

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

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

.page-pricing .pricing-picks {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-pick {
  display: grid;
  gap: var(--space-2);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-pick__cue {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-pricing .pricing-pick__tier {
  justify-self: start;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: 3px var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-ink);
  white-space: nowrap;
}

.page-pricing .pricing-pick__note {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-soft);
  background: var(--color-surface-deep);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
}

@media (min-width: 860px) {
  .page-pricing .pricing-pick {
    grid-template-columns: minmax(0, 7fr) minmax(0, 2fr) minmax(0, 5fr);
    gap: var(--space-4);
    align-items: baseline;
    padding-block: var(--space-3);
  }

  .page-pricing .pricing-pick__note {
    padding: var(--space-2) var(--space-3);
  }
}

/* ---------- 档位与数据产品对应 ---------- */
.page-pricing .pricing-map__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-pricing .pricing-map__intro {
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-pricing .pricing-map__list {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-map__row {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-pricing .pricing-map__tier {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  letter-spacing: 0.04em;
}

.page-pricing .pricing-map__what {
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-pricing .pricing-map__where {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-2);
}

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

.page-pricing .pricing-map__outro a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--color-primary);
}

.page-pricing .pricing-map__outro a:hover,
.page-pricing .pricing-map__outro a:focus-visible {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

@media (min-width: 780px) {
  .page-pricing .pricing-map__row {
    grid-template-columns: minmax(0, 2fr) minmax(0, 6fr) minmax(0, 4fr);
    gap: var(--space-4);
    align-items: baseline;
    padding-block: var(--space-3);
  }
}

/* ---------- 差异收束 ---------- */
.page-pricing .pricing-diff__grid {
  display: grid;
  gap: var(--space-4);
}

.page-pricing .pricing-diff__aside .chapter-no {
  margin: 0 0 var(--space-2);
  font-size: var(--text-2xl);
  line-height: 1;
  color: var(--color-contrast-accent);
}

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

.page-pricing .pricing-diff__main p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
  max-width: var(--measure);
}

.page-pricing .pricing-diff__actions {
  margin: var(--space-4) 0 var(--space-3);
}

.page-pricing .pricing-diff__contact {
  font-size: var(--text-sm) !important;
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent) !important;
}

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

.page-pricing .pricing-diff__contact a:hover,
.page-pricing .pricing-diff__contact a:focus-visible {
  background: color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
}

@media (min-width: 900px) {
  .page-pricing .pricing-diff__grid {
    grid-template-columns: 4fr 8fr;
    gap: var(--space-6);
  }
}

/* ---------- 返回顶部 ---------- */
.page-pricing .back-to-top {
  border-radius: var(--radius-sm);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: var(--space-1) var(--space-2);
  cursor: pointer;
}

.page-pricing .back-to-top:hover,
.page-pricing .back-to-top:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

@media (prefers-reduced-motion: reduce) {
  .page-pricing .pricing-tier,
  .page-pricing .pricing-tier__aside,
  .page-pricing .pricing-tier__no,
  .page-pricing .pricing-tier__name,
  .page-pricing .pricing-tier__tag,
  .page-pricing .pricing-hero__tiers a,
  .page-pricing .pricing-toc__link {
    transition: none;
  }
}