.page-pricing {
  --pp-line: 1px solid var(--color-line);
  --pp-line-dark: 1px solid var(--color-contrast-line);
  --pp-dim: color-mix(in srgb, var(--color-contrast-ink) 68%, var(--color-contrast-surface));
  color: var(--color-ink);
  background: var(--color-surface);
}

/* ---------- 首屏框景 ---------- */
.page-pricing .pricing-hero {
  position: relative;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6) 0 var(--space-8);
  overflow: hidden;
}

.page-pricing .pricing-hero::before,
.page-pricing .pricing-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background-image: repeating-linear-gradient(90deg, var(--color-contrast-line) 0 1px, transparent 1px 18px);
}

.page-pricing .pricing-hero::before { top: 0; }
.page-pricing .pricing-hero::after { bottom: 0; }

.page-pricing .pricing-hero__inner {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.page-pricing .pricing-breadcrumbs {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

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

.page-pricing .pricing-breadcrumbs li {
  color: var(--pp-dim);
}

.page-pricing .pricing-breadcrumbs li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--color-contrast-line);
}

.page-pricing .pricing-breadcrumbs a {
  color: var(--pp-dim);
  text-decoration: none;
}

.page-pricing .pricing-breadcrumbs a:hover {
  color: var(--color-contrast-accent);
}

.page-pricing .pricing-breadcrumbs [aria-current="page"] {
  color: var(--color-contrast-ink);
}

.page-pricing .pricing-hero__kicker {
  margin: 0;
  color: var(--color-contrast-accent);
}

.page-pricing .pricing-hero__title {
  margin: 0;
  max-width: 15em;
  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-contrast-ink);
}

.page-pricing .pricing-hero__lead {
  margin: 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--pp-dim);
}

.page-pricing .pricing-hero__figures {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-2);
  padding-top: var(--space-4);
  border-top: var(--pp-line-dark);
}

.page-pricing .pricing-fig {
  display: grid;
  gap: var(--space-1);
}

.page-pricing .pricing-fig__num {
  display: inline-block;
  width: fit-content;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-ink);
  border-bottom: 2px solid var(--color-contrast-accent);
  padding-bottom: var(--space-1);
}

.page-pricing .pricing-fig__label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--pp-dim);
}

/* ---------- 图片通用 ---------- */
.page-pricing .pricing-figure {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.page-pricing .pricing-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
}

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

.page-pricing .pricing-figure--band {
  margin-block: var(--space-4);
}

/* ---------- 档位区 ---------- */
.page-pricing .pricing-tiers {
  padding-top: var(--space-8);
}

.page-pricing .section-title {
  margin: 0 0 var(--space-3);
  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-pricing .kicker {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-pricing .prose {
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-pricing .measure {
  max-width: var(--measure);
}

.page-pricing .tier-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-pricing .tier-card {
  display: grid;
  align-content: start;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-top: 2px solid var(--color-ink-muted);
  border-radius: var(--radius-sm);
  transition: border-color 140ms ease-out, background-color 140ms ease-out;
}

.page-pricing .tier-card:hover {
  border-top-color: var(--color-primary);
  background: var(--color-surface-deep);
}

.page-pricing .tier-card__index {
  margin: 0;
  padding-bottom: var(--space-1);
  border-bottom: var(--pp-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}

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

.page-pricing .tier-card__fields {
  display: grid;
  gap: var(--space-1);
  margin: 0;
}

.page-pricing .tier-card__fields dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-pricing .tier-card__fields dd {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 目录轨道 + 长文 ---------- */
.page-pricing .doc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  padding-block: var(--space-8) var(--section-y);
}

.page-pricing .doc-shell > .doc-rail,
.page-pricing .doc-shell > .doc-body {
  grid-column: auto;
  min-width: 0;
}

.page-pricing .doc-rail {
  position: relative;
  display: grid;
  align-content: start;
  gap: var(--space-2);
}

.page-pricing .rail-title {
  margin: 0;
  padding-bottom: var(--space-1);
  border-bottom: var(--pp-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-pricing .rail-list {
  display: grid;
  gap: var(--space-1);
}

.page-pricing .rail-link {
  padding: var(--space-1) 0 var(--space-1) var(--space-2);
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  text-decoration: none;
  transition: color 120ms ease-out, border-color 120ms ease-out;
}

.page-pricing .rail-link:hover,
.page-pricing .rail-link:focus-visible {
  color: var(--color-primary);
}

.page-pricing .rail-link.is-current,
.page-pricing .rail-link[aria-current="true"] {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  font-weight: var(--weight-heading);
}

.page-pricing .rail-marker {
  display: none;
}

.page-pricing .doc-body .section + .section {
  margin-top: var(--section-y);
}

/* ---------- 对照表 ---------- */
.page-pricing .matrix-wrap {
  overflow-x: auto;
  padding-bottom: var(--space-1);
}

.page-pricing .matrix-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: var(--text-base);
  line-height: 1.6;
}

.page-pricing .matrix-table th,
.page-pricing .matrix-table td {
  text-align: left;
  vertical-align: top;
  padding: var(--space-2);
  border-bottom: var(--pp-line);
}

.page-pricing .matrix-table thead th {
  background: var(--color-surface-deep);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink);
  white-space: nowrap;
}

.page-pricing .matrix-table tbody th {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  white-space: nowrap;
}

.page-pricing .matrix-table tbody tr:nth-child(even) td {
  background: var(--color-surface-alt);
}

.page-pricing .matrix-table .is-none {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.06em;
}

@media (hover: hover) and (min-width: 900px) {
  .page-pricing .matrix-table:has(tbody td:nth-child(2):hover) tbody td:nth-child(2),
  .page-pricing .matrix-table:has(tbody td:nth-child(3):hover) tbody td:nth-child(3),
  .page-pricing .matrix-table:has(tbody td:nth-child(4):hover) tbody td:nth-child(4),
  .page-pricing .matrix-table:has(tbody td:nth-child(5):hover) tbody td:nth-child(5) {
    background: var(--color-primary-soft);
    color: var(--color-ink);
  }
}

.page-pricing .matrix-side {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-pricing .matrix-note {
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-primary);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-pricing .matrix-note p {
  margin: 0 0 var(--space-2);
}

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

/* ---------- 不含项 ---------- */
.page-pricing .limit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

.page-pricing .limit-item {
  padding-left: var(--space-3);
  border-left: 2px solid var(--color-accent);
}

.page-pricing .limit-item__head {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink);
}

.page-pricing .limit-item p:last-child {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-pricing .limit-common {
  margin: var(--space-4) 0 0;
  padding: var(--space-3);
  background: var(--color-surface-deep);
  border-left: 1px solid var(--color-ink-muted);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 选择建议 ---------- */
.page-pricing .advice-list {
  border-top: var(--pp-line);
}

.page-pricing .expander {
  border-bottom: var(--pp-line);
}

.page-pricing .expander__summary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  transition: color 140ms ease-out;
}

.page-pricing .expander__summary::-webkit-details-marker {
  display: none;
}

.page-pricing .expander__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  color: var(--color-primary);
}

.page-pricing .expander[open] .expander__summary::after {
  content: "–";
}

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

.page-pricing .expander__summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

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

.page-pricing .expander__body p {
  margin: 0 0 var(--space-1);
}

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

.page-pricing .advice-final {
  margin: var(--space-4) 0 0;
  padding: var(--space-3);
  background: var(--color-primary-soft);
  border-left: 2px solid var(--color-primary);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 下一步出口 ---------- */
.page-pricing .pricing-next {
  padding-bottom: var(--section-y);
}

.page-pricing .next-list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  border-top: var(--pp-line);
}

.page-pricing .next-item a {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--pp-line);
  text-decoration: none;
  color: inherit;
}

.page-pricing .next-item__label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-primary);
  transition: color 140ms ease-out;
}

.page-pricing .next-item a:hover .next-item__label,
.page-pricing .next-item a:focus-visible .next-item__label {
  color: var(--color-accent);
}

.page-pricing .next-item a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-pricing .next-item__text {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-pricing .pricing-contact {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* ---------- 自适应 ---------- */
@media (min-width: 700px) {
  .page-pricing .pricing-hero {
    padding: var(--space-8) 0 var(--space-8);
  }

  .page-pricing .section-title {
    font-size: var(--text-3xl);
  }

  .page-pricing .tier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-pricing .limit-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-pricing .doc-shell {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: var(--gutter);
  }

  .page-pricing .doc-rail {
    position: sticky;
    top: var(--space-8);
    align-self: start;
  }

  .page-pricing .rail-marker {
    display: block;
    position: absolute;
    left: calc(var(--space-4) * -1);
    top: 0;
    width: 4px;
    height: 4px;
    background: var(--color-focus);
    transition: transform 160ms ease-out;
  }

  .page-pricing .matrix-side {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--gutter);
    align-items: center;
    margin-top: var(--space-6);
  }

  .page-pricing .next-item a {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: var(--gutter);
    align-items: baseline;
  }
}

@media (min-width: 1024px) {
  .page-pricing .tier-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: start;
  }

  .page-pricing .tier-card:nth-child(1) { margin-top: var(--space-6); }
  .page-pricing .tier-card:nth-child(2) { margin-top: 0; }
  .page-pricing .tier-card:nth-child(3) { margin-top: var(--space-4); }
  .page-pricing .tier-card:nth-child(4) { margin-top: var(--space-2); }
}

@media (max-width: 899px) {
  .page-pricing .rail-list {
    display: flex;
    gap: var(--space-3);
    overflow-x: auto;
    padding-bottom: var(--space-1);
  }

  .page-pricing .rail-link {
    flex: none;
    white-space: nowrap;
  }

  .page-pricing .doc-body .section + .section {
    margin-top: var(--space-8);
  }
}

@media (max-width: 640px) {
  .page-pricing .pricing-hero__figures {
    gap: var(--space-4);
  }

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

  .page-pricing .doc-shell {
    padding-block: var(--space-6) var(--space-8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-pricing .tier-card,
  .page-pricing .rail-link,
  .page-pricing .rail-marker,
  .page-pricing .expander__summary,
  .page-pricing .next-item__label {
    transition: none;
  }
}
<<<END>>>