.page-pricing {
  --eq-rail-w: 236px;
  --eq-tick-gap: 14px;
}

/* ---------- 面包屑 ---------- */
.page-pricing .eq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-3);
  padding-bottom: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-pricing .eq-crumb a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

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

.page-pricing .eq-crumb__sep {
  color: var(--color-line);
}

/* ---------- 首屏 ---------- */
.page-pricing .eq-hero {
  overflow: hidden;
}

.page-pricing .eq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: start;
}

.page-pricing .eq-hero__title {
  margin: var(--space-2) 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-pricing .eq-hero__lede {
  max-width: 44ch;
  font-size: var(--text-lg);
  line-height: 1.62;
  color: var(--color-ink);
}

.page-pricing .eq-hero__note {
  max-width: 44ch;
  margin-top: var(--space-2);
  padding-left: var(--space-2);
  border-left: 2px solid var(--color-primary);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-pricing .eq-hero__side {
  display: grid;
  gap: var(--space-2);
}

.page-pricing .eq-hero__figure {
  margin: 0;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-1);
}

.page-pricing .eq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-pricing .eq-figs {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-pricing .eq-figs__item {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2) var(--space-1) var(--space-3);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  box-shadow: inset 2px 0 0 var(--color-primary);
}

.page-pricing .eq-figs__value {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--color-ink);
}

.page-pricing .eq-figs__label {
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
}

.page-pricing .eq-hero__foot {
  margin-top: var(--space-6);
}

.page-pricing .eq-scale {
  height: 10px;
  border-bottom: var(--border-thin) solid var(--color-line);
  background-image: repeating-linear-gradient(
    90deg,
    var(--color-line) 0 1px,
    transparent 1px var(--eq-tick-gap)
  );
}

.page-pricing .eq-hero__scale-note {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--color-ink-muted);
}

/* ---------- 通用标题 ---------- */
.page-pricing .eq-h2 {
  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-pricing .eq-h2--paper {
  color: var(--color-contrast-ink);
}

/* ---------- 六类分组索引 ---------- */
.page-pricing .eq-groups__head {
  max-width: 62ch;
}

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

.page-pricing .eq-groups__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-pricing .eq-groups__figure {
  margin: 0;
}

.page-pricing .eq-group-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-pricing .eq-group__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "idx name count"
    "desc desc desc";
  gap: var(--space-1) var(--space-2);
  align-items: baseline;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  box-shadow: inset 2px 0 0 var(--color-primary);
  color: var(--color-ink);
  text-decoration: none;
  transition: background-color 160ms ease, box-shadow 160ms ease;
}

.page-pricing .eq-group__link:hover,
.page-pricing .eq-group__link:focus-visible {
  background: var(--color-surface-deep);
  box-shadow: inset 4px 0 0 var(--color-primary);
}

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

.page-pricing .eq-group__idx {
  grid-area: idx;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-primary);
}

.page-pricing .eq-group__name {
  grid-area: name;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.3;
  color: var(--color-ink);
}

.page-pricing .eq-group__count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-accent);
}

.page-pricing .eq-group__desc {
  grid-area: desc;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-ink-soft);
}

/* ---------- 条目区 ---------- */
.page-pricing .eq-entries__head {
  max-width: 68ch;
}

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

.page-pricing .eq-filter {
  margin-top: var(--space-4);
}

.page-pricing .eq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-pricing .eq-rail__title {
  margin: 0 0 var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  color: var(--color-ink-muted);
}

.page-pricing .eq-rail__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-pricing .eq-rail__nav .toc__link {
  display: inline-flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: var(--radius-sm);
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.page-pricing .eq-rail__nav .toc__link:hover {
  color: var(--color-ink);
  background: var(--color-surface-alt);
}

.page-pricing .eq-rail__nav .toc__link[aria-current="true"] {
  color: var(--color-ink);
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
}

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

.page-pricing .eq-rail__nav .num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-pricing .eq-pack + .eq-pack {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px dashed var(--color-line);
}

.page-pricing .eq-pack__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-primary);
}

.page-pricing .eq-pack__idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-primary);
}

.page-pricing .eq-pack__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-pricing .eq-pack__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-pricing .eq-pack__desc {
  max-width: var(--measure);
  margin: var(--space-2) 0 var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-pricing .eq-list {
  display: grid;
  gap: 0;
}

.page-pricing .eq-item {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  border-bottom: 1px dashed var(--color-line);
  box-shadow: inset 2px 0 0 transparent;
  transition: background-color 180ms ease, box-shadow 180ms ease;
}

.page-pricing .eq-item[data-status="verified"] {
  background: color-mix(in srgb, var(--color-highlight) 48%, transparent);
}

.page-pricing .eq-item[data-status]:hover {
  background: var(--color-surface-alt);
  box-shadow: inset 4px 0 0 var(--color-primary);
}

.page-pricing .eq-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
}

.page-pricing .eq-item__id {
  padding: 2px var(--space-1);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 55%, transparent);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-primary);
}

.page-pricing .eq-item__name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: 1.4;
  letter-spacing: 0.015em;
  color: var(--color-ink);
}

.page-pricing .status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 2px var(--space-1);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  white-space: nowrap;
}

.page-pricing .status::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.page-pricing .status[data-status="verified"] {
  color: var(--color-accent);
  border-color: color-mix(in srgb, var(--color-accent) 45%, transparent);
  background: color-mix(in srgb, var(--color-accent) 12%, transparent);
}

.page-pricing .status[data-status="pending"] {
  color: var(--color-ink-soft);
  border-color: var(--color-line);
  background: color-mix(in srgb, var(--color-ink-soft) 12%, transparent);
}

.page-pricing .status[data-status="superseded"] {
  color: var(--color-primary);
  border-color: color-mix(in srgb, var(--color-primary) 55%, transparent);
  background: var(--color-primary-soft);
}

.page-pricing .eq-item__fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1) var(--space-3);
  margin: 0;
}

.page-pricing .eq-item__fields > div {
  display: flex;
  gap: var(--space-1);
  min-width: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
}

.page-pricing .eq-item__fields dt {
  flex: 0 0 auto;
  min-width: 5.2em;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-pricing .eq-item__fields dd {
  margin: 0;
  min-width: 0;
  color: var(--color-ink);
}

.page-pricing .eq-item__note {
  margin: 0;
  padding-left: var(--space-2);
  border-left: 2px solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  transition: color 180ms ease, border-color 180ms ease;
}

.page-pricing .eq-item:hover .eq-item__note {
  color: var(--color-ink);
  border-left-color: var(--color-primary);
}

/* ---------- 区间口径（浅色区） ---------- */
.page-pricing .eq-interval__head {
  max-width: 58ch;
}

.page-pricing .eq-interval__figure {
  margin: var(--space-4) 0 0;
}

.page-pricing .eq-interval__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.page-pricing .eq-interval__col h3 {
  margin: 0 0 var(--space-2);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-contrast-accent);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.3;
  color: var(--color-contrast-ink);
}

.page-pricing .eq-interval__col p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-contrast-ink);
}

/* ---------- 常见对照问题 ---------- */
.page-pricing .eq-advice__head {
  max-width: 58ch;
}

.page-pricing .eq-advice__intro {
  margin-top: var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-pricing .eq-faq {
  display: grid;
  gap: var(--space-1);
  margin-top: var(--space-4);
}

.page-pricing .eq-faq__item {
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: border-color 160ms ease, background-color 160ms ease;
}

.page-pricing .eq-faq__item[open] {
  background: var(--color-surface-alt);
  border-color: color-mix(in srgb, var(--color-primary) 58%, transparent);
}

.page-pricing .eq-faq__q {
  position: relative;
  padding: var(--space-2) var(--space-6) var(--space-2) var(--space-3);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: 1.5;
  color: var(--color-ink);
}

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

.page-pricing .eq-faq__q::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: var(--space-3);
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-primary);
}

.page-pricing .eq-faq__item[open] .eq-faq__q::after {
  content: "–";
}

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

.page-pricing .eq-faq__a {
  padding: 0 var(--space-3) var(--space-3);
}

.page-pricing .eq-faq__a p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-soft);
}

/* ---------- 口径变更与勘误 ---------- */
.page-pricing .eq-revision__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: start;
}

.page-pricing .eq-revision__plate {
  padding: var(--space-3);
}

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

.page-pricing .eq-revision__body a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dashed color-mix(in srgb, var(--color-primary) 60%, transparent);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-pricing .eq-revision__body a:hover,
.page-pricing .eq-revision__body a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

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

.page-pricing .eq-revision__links {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-pricing .eq-revision__links li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-1) var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-line);
  font-size: var(--text-sm);
}

.page-pricing .eq-revision__links a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px dashed color-mix(in srgb, var(--color-primary) 55%, transparent);
  transition: color 160ms ease;
}

.page-pricing .eq-revision__links a:hover,
.page-pricing .eq-revision__links a:focus-visible {
  color: var(--color-primary);
}

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

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

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-pricing .eq-item__fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 620px) {
  .page-pricing .eq-group-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-pricing .eq-interval__cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .page-pricing .eq-revision__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-6);
  }
}

@media (min-width: 860px) {
  .page-pricing .eq-groups__body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-pricing .eq-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-6);
    align-items: end;
  }

  .page-pricing .eq-layout {
    grid-template-columns: var(--eq-rail-w) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-pricing .eq-rail {
    position: sticky;
    top: 96px;
  }

  .page-pricing .eq-rail__nav {
    display: block;
  }

  .page-pricing .eq-rail__nav .toc__link {
    display: flex;
    width: 100%;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-pricing .eq-hero__figure img,
  .page-pricing .eq-item,
  .page-pricing .eq-item__note,
  .page-pricing .eq-group__link,
  .page-pricing .eq-faq__item,
  .page-pricing .eq-rail__nav .toc__link,
  .page-pricing .eq-crumb a {
    transition-duration: 0ms;
  }
}
</main>