.page-reports {
  --rf-toc-w: 236px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-reports .rf-hero {
  padding-bottom: 0;
}

.page-reports .rf-hero__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-block: var(--space-8) var(--space-6);
}

.page-reports .rf-hero__title {
  margin: 0;
  font-size: var(--text-display);
  line-height: 0.9;
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}

.page-reports .rf-hero__lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
}

.page-reports .rf-hero__board {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
}

.page-reports .rf-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.15);
  opacity: 0.55;
}

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

.page-reports .rf-hero__figures {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  padding-block: var(--space-8);
}

.page-reports .rf-fig {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  color: var(--color-primary-ink);
}

.page-reports .rf-fig__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-reports .rf-fig__label {
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--color-primary-ink) 80%, transparent);
}

.page-reports .rf-fig__def {
  max-width: 36ch;
  font-size: var(--text-sm);
  line-height: 1.65;
  color: color-mix(in srgb, var(--color-primary-ink) 70%, transparent);
}

/* ---------- 长文档骨架 ---------- */
.page-reports .rf-doc__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.page-reports .rf-toc {
  background: var(--color-surface-deep);
  padding: var(--space-3);
}

.page-reports .rf-toc__label {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-reports .rf-toc__list,
.page-reports .rf-toc__sublist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-reports .rf-toc__group + .rf-toc__group {
  margin-top: var(--space-2);
}

.page-reports .rf-toc__link {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-1) var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
  text-decoration: none;
}

.page-reports .rf-toc__link--top {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-reports .rf-toc__link:hover,
.page-reports .rf-toc__link:focus-visible {
  background: var(--color-highlight);
  color: var(--color-accent);
}

.page-reports .rf-toc__sublist {
  margin-top: var(--space-1);
  padding-left: var(--space-2);
}

.page-reports .rf-toc__no {
  flex: 0 0 auto;
  min-width: 2.4em;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-reports .rf-toc__note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* ---------- 章节通用 ---------- */
.page-reports .rf-chapter {
  padding: var(--space-6) var(--space-4);
}

.page-reports .rf-chapter + .rf-chapter {
  margin-top: var(--space-3);
}

.page-reports .rf-chapter--alt {
  background: var(--color-surface-alt);
  color: var(--color-ink);
}

.page-reports .rf-chapter--contrast {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-reports .rf-chapter--primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-reports .rf-ch__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.page-reports .rf-ch__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-body);
  letter-spacing: 0.14em;
  opacity: 0.6;
}

.page-reports .rf-ch__title {
  margin: 0;
  font-size: var(--text-xl);
  line-height: 1.1;
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}

.page-reports .rf-ch__lede {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-reports .rf-sec {
  margin-top: var(--space-6);
}

.page-reports .rf-sec__title {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
  margin: 0 0 var(--space-3);
  font-size: var(--text-lg);
  line-height: 1.25;
  font-weight: var(--weight-heading);
}

.page-reports .rf-sec__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
}

.page-reports .rf-sec__p {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  color: var(--color-ink-soft);
}

.page-reports .rf-link {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-reports .rf-link:hover,
.page-reports .rf-link:focus-visible {
  color: var(--color-focus);
}

/* 反色章内的次级文字与链接 */
.page-reports .rf-chapter--contrast .rf-ch__lede,
.page-reports .rf-chapter--contrast .rf-sec__p {
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-reports .rf-chapter--contrast .rf-sec__no {
  color: var(--color-contrast-accent);
}

.page-reports .rf-chapter--contrast .rf-link {
  color: var(--color-contrast-accent);
}

.page-reports .rf-chapter--primary .rf-ch__lede,
.page-reports .rf-chapter--primary .rf-sec__p {
  color: color-mix(in srgb, var(--color-primary-ink) 84%, transparent);
}

.page-reports .rf-chapter--primary .rf-sec__no {
  color: color-mix(in srgb, var(--color-primary-ink) 70%, transparent);
}

.page-reports .rf-chapter--primary .rf-link {
  color: var(--color-primary-ink);
}

/* ---------- 规则条目 ---------- */
.page-reports .rf-rules {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-reports .rf-rules__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
}

.page-reports .rf-rules__no {
  padding-top: 0.15em;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-reports .rf-rules__body h4 {
  margin: 0 0 var(--space-1);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
}

.page-reports .rf-rules__body p {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-reports .rf-chapter--contrast .rf-rules__no {
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

.page-reports .rf-chapter--contrast .rf-rules__body p {
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-reports .rf-chapter--primary .rf-rules__no {
  color: color-mix(in srgb, var(--color-primary-ink) 62%, transparent);
}

.page-reports .rf-chapter--primary .rf-rules__body p {
  color: color-mix(in srgb, var(--color-primary-ink) 86%, transparent);
}

/* ---------- 要点框 ---------- */
.page-reports .rf-callout {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--color-primary-soft);
  color: var(--color-ink);
}

.page-reports .rf-callout__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  color: var(--color-accent);
}

.page-reports .rf-callout__text {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink);
}

.page-reports .rf-callout .rf-link {
  color: var(--color-accent);
}

/* ---------- 两条数据线 ---------- */
.page-reports .rf-lines {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-3);
}

.page-reports .rf-line {
  padding: var(--space-4);
  background: var(--color-surface);
}

.page-reports .rf-chapter--contrast .rf-line {
  background: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
}

.page-reports .rf-line__name {
  margin: 0 0 var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
}

.page-reports .rf-line__src {
  max-width: 46ch;
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-reports .rf-line__fields {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-2);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-reports .rf-line__fields li {
  padding: 2px var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink);
  background: var(--color-highlight);
}

.page-reports .rf-chapter--contrast .rf-line__src {
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent);
}

.page-reports .rf-chapter--contrast .rf-line__fields li {
  color: var(--color-contrast-ink);
  background: color-mix(in srgb, var(--color-contrast-accent) 26%, transparent);
}

/* ---------- 覆盖层级 ---------- */
.page-reports .rf-tiers {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-3) 0 var(--space-4);
  padding: 0;
  list-style: none;
}

.page-reports .rf-tier {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  align-items: baseline;
  padding: var(--space-3);
}

.page-reports .rf-tier:nth-child(odd) {
  background: var(--color-surface);
}

.page-reports .rf-tier__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-accent);
}

.page-reports .rf-tier__name {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
}

.page-reports .rf-tier__note {
  grid-column: 2;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* ---------- 图与示意图 ---------- */
.page-reports .rf-svgfig,
.page-reports .rf-figure {
  margin: var(--space-4) 0;
}

.page-reports .rf-figure--square {
  max-width: 520px;
}

.page-reports .rf-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-reports .rf-svg__track {
  fill: color-mix(in srgb, var(--color-contrast-ink) 14%, transparent);
}

.page-reports .rf-svg__seg {
  fill: var(--color-contrast-accent);
}

.page-reports .rf-svg__seg--soft {
  fill: color-mix(in srgb, var(--color-contrast-accent) 42%, transparent);
}

.page-reports .rf-svg__band {
  fill: color-mix(in srgb, var(--color-contrast-accent) 52%, transparent);
}

.page-reports .rf-svg__band--soft {
  fill: color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
}

.page-reports .rf-svg__label {
  font-family: var(--font-mono);
  font-size: 17px;
  fill: var(--color-contrast-ink);
  opacity: 0.85;
}

.page-reports .rf-svg__foot {
  font-family: var(--font-mono);
  font-size: 14px;
  fill: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-reports .rf-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  object-fit: cover;
  filter: grayscale(1) contrast(1.1);
}

.page-reports .rf-chapter--contrast .rf-img {
  opacity: 0.85;
}

.page-reports .rf-figure__cap,
.page-reports .rf-svgfig figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-reports .rf-chapter--contrast .rf-figure__cap,
.page-reports .rf-chapter--contrast .rf-svgfig figcaption {
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-reports .rf-chapter--primary .rf-figure__cap {
  color: color-mix(in srgb, var(--color-primary-ink) 72%, transparent);
}

/* ---------- 折叠面板附加 ---------- */
.page-reports .rf-callout .acc {
  margin-top: var(--space-3);
}

.page-reports .rf-acc {
  margin-top: var(--space-3);
}

/* ---------- 字段定义 ---------- */
.page-reports .rf-fields {
  margin: var(--space-3) 0 0;
}

.page-reports .rf-fields__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  padding: var(--space-3) var(--space-2);
}

.page-reports .rf-fields__row:nth-child(even) {
  background: color-mix(in srgb, var(--color-primary-ink) 12%, transparent);
}

.page-reports .rf-fields__row dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
}

.page-reports .rf-fields__row dd {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-primary-ink) 86%, transparent);
}

/* ---------- 数据表 ---------- */
.page-reports .rf-table-wrap {
  margin-top: var(--space-3);
  overflow-x: auto;
}

.page-reports .rf-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: var(--text-base);
}

.page-reports .rf-table caption {
  padding-bottom: var(--space-2);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-reports .rf-table th,
.page-reports .rf-table td {
  padding: var(--space-2) var(--space-2);
  text-align: left;
  border-bottom: var(--border-thin) solid var(--color-line);
  vertical-align: top;
}

.page-reports .rf-table th {
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  font-weight: var(--weight-heading);
}

.page-reports .rf-table td:first-child {
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-reports .rf-table td {
  color: var(--color-ink-soft);
}

/* ---------- 相关栏目 ---------- */
.page-reports .rf-next {
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: var(--color-surface-deep);
}

.page-reports .rf-next__label {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-reports .rf-next__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-reports .rf-next__list a {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-2);
  text-decoration: none;
  color: var(--color-ink);
  background: var(--color-surface);
}

.page-reports .rf-next__list a:hover,
.page-reports .rf-next__list a:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-reports .rf-next__k {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
}

.page-reports .rf-next__d {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.page-reports .rf-next__list a:hover .rf-next__d,
.page-reports .rf-next__list a:focus-visible .rf-next__d {
  color: color-mix(in srgb, var(--color-primary-ink) 82%, transparent);
}

/* ---------- 焦点态 ---------- */
.page-reports a:focus-visible,
.page-reports .rf-fig:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 数字口径悬停说明 ---------- */
@media (hover: hover) and (min-width: 900px) {
  .page-reports .rf-fig__def {
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .page-reports .rf-fig:hover .rf-fig__def,
  .page-reports .rf-fig:focus .rf-fig__def,
  .page-reports .rf-fig:focus-within .rf-fig__def {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 600px) {
  .page-reports .rf-hero__figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4) var(--space-6);
  }

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

  .page-reports .rf-tier {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .page-reports .rf-tier__note {
    grid-column: 3;
    text-align: right;
  }

  .page-reports .rf-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
  }

  .page-reports .rf-fields__row {
    grid-template-columns: minmax(0, 180px) minmax(0, 1fr);
    gap: var(--space-4);
    align-items: baseline;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-reports .rf-hero__head {
    padding-block: var(--space-8) var(--space-6);
  }

  .page-reports .rf-fig__num {
    font-size: var(--text-figure);
  }

  .page-reports .rf-doc__grid {
    grid-template-columns: var(--rf-toc-w) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-reports .rf-toc {
    position: sticky;
    top: var(--space-8);
  }

  .page-reports .rf-chapter {
    padding: var(--space-8) var(--space-6);
  }

  .page-reports .rf-ch__idx {
    font-size: var(--text-xl);
  }

  .page-reports .rf-ch__title {
    font-size: var(--text-2xl);
  }

  .page-reports .rf-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1160px) {
  .page-reports .rf-callout--offset {
    margin-left: calc(-1 * var(--space-6));
    padding-left: calc(var(--space-4) + var(--space-6));
  }
}