.page-reports {
  --reports-rail-w: calc(var(--space-8) * 4);
  --reports-entry-rail: calc(var(--space-8) * 2.4);
  --reports-tl-node: calc(var(--space-8) * 2.5);
  --reports-cat-min: calc(var(--space-8) * 2.5);
}

.page-reports h2 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-1) 0 var(--space-2);
}

.page-reports h3 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

/* ---------- 首屏 ---------- */

.page-reports .report-hero {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--section-y-lg) 0 var(--section-y);
  overflow: hidden;
}

.page-reports .hero-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
  margin-bottom: var(--space-4);
}

.page-reports .hero-crumb a {
  color: var(--color-contrast-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-reports .hero-head {
  max-width: var(--measure);
}

.page-reports .hero-head .eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-accent);
}

.page-reports .report-hero h1 {
  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);
  margin: var(--space-2) 0 var(--space-3);
}

.page-reports .hero-lede {
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 86%, transparent);
  margin: 0;
}

.page-reports .hero-figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-reports .hero-fig .num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
  font-variant-numeric: tabular-nums;
}

.page-reports .hero-fig .fig-label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

/* 时间轴 */

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

.page-reports .timeline-caption {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
  margin-bottom: var(--space-2);
}

.page-reports .timeline-track {
  display: flex;
  overflow-x: auto;
  border-top: var(--border-thin) solid var(--color-contrast-line);
  padding-bottom: var(--space-2);
  scrollbar-width: thin;
}

.page-reports .tl-node {
  position: relative;
  flex: 1 1 var(--reports-tl-node);
  min-width: var(--reports-tl-node);
  padding: var(--space-4) var(--space-2) var(--space-2) 0;
  border-right: var(--border-thin) solid color-mix(in srgb, var(--color-contrast-line) 70%, transparent);
}

.page-reports .tl-node:last-child {
  border-right: 0;
}

.page-reports .tl-node::before {
  content: "";
  position: absolute;
  top: calc(var(--space-1) / -2);
  left: 0;
  width: calc(var(--space-1) + 2px);
  height: calc(var(--space-1) + 2px);
  border-radius: 50%;
  background: var(--color-contrast-line);
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.page-reports .tl-node:hover::before,
.page-reports .tl-node:focus-visible::before {
  background: var(--color-contrast-accent);
  box-shadow: 0 0 0 var(--space-1) color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
}

.page-reports .tl-node:focus-visible {
  outline: 2px solid var(--color-contrast-accent);
  outline-offset: var(--space-1);
}

.page-reports .tl-stage {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-contrast-ink);
}

.page-reports .tl-cat {
  display: block;
  margin-top: calc(var(--space-1) / 2);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-reports .tl-count {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

.page-reports .tl-count .num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  color: var(--color-contrast-accent);
  margin-right: calc(var(--space-1) / 2);
  font-variant-numeric: tabular-nums;
}

.page-reports .tl-hint {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 52%, transparent);
  opacity: 0;
  transform: translateY(calc(var(--space-1) / -4));
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.page-reports .tl-node:hover .tl-hint,
.page-reports .tl-node:focus-within .tl-hint,
.page-reports .tl-node:focus-visible .tl-hint {
  opacity: 1;
  transform: none;
}

/* 首屏图片 */

.page-reports .hero-media {
  margin: var(--space-6) 0 0;
}

.page-reports .hero-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: var(--shadow-2);
  filter: saturate(0.72) contrast(1.06);
}

.page-reports .hero-media .media-caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent);
}

/* ---------- 主布局 ---------- */

.page-reports .reports-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  padding: var(--section-y) 0 var(--section-y-lg);
}

.page-reports .reports-rail {
  display: grid;
  gap: var(--space-4);
  align-content: start;
  align-self: start;
}

.page-reports .toc-nav {
  display: grid;
  gap: calc(var(--space-1) / 2);
  border-left: var(--border-thin) solid var(--color-line);
  padding-left: var(--space-2);
}

.page-reports .toc-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-1);
}

.page-reports .toc-link {
  display: block;
  padding: calc(var(--space-1) / 2) 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-reports .toc-link:hover {
  color: var(--color-ink);
}

.page-reports .toc-link[aria-current="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.page-reports .rail-card {
  padding: var(--space-3);
}

.page-reports .rail-card .eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  margin: 0;
}

.page-reports .rail-legend {
  display: grid;
  gap: var(--space-1);
  list-style: none;
  margin: var(--space-2) 0;
  padding: 0;
}

.page-reports .rail-legend li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-reports .rail-legend .num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  font-variant-numeric: tabular-nums;
}

.page-reports .rail-note {
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0;
}

.page-reports .rail-note a {
  color: var(--color-primary);
  border-bottom: var(--border-thin) solid currentColor;
  text-decoration: none;
}

/* ---------- 区块节奏 ---------- */

.page-reports .reports-main > section + section {
  margin-top: var(--section-y-lg);
}

.page-reports .section-head {
  max-width: var(--measure);
  margin-bottom: var(--space-5, var(--space-4));
}

.page-reports .section-lede {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0;
}

.page-reports .section-lede a,
.page-reports .archive-tail a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

/* ---------- 条目流 ---------- */

.page-reports .entry-list {
  display: grid;
}

.page-reports .report-entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease;
}

.page-reports .report-entry:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-reports .report-entry:hover {
  background: var(--color-primary-soft);
}

.page-reports .entry-rail {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1);
}

.page-reports .entry-id {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
  font-variant-numeric: tabular-nums;
}

.page-reports .entry-title {
  font-size: var(--text-xl);
  margin: 0 0 var(--space-1);
}

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

.page-reports .entry-more {
  margin-top: var(--space-2);
}

.page-reports .entry-more summary {
  display: inline-flex;
  align-items: center;
  gap: calc(var(--space-1) / 2);
  font-size: var(--text-sm);
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 45%, transparent);
  padding-bottom: calc(var(--space-1) / 4);
}

.page-reports .entry-more summary::-webkit-details-marker {
  display: none;
}

.page-reports .entry-more summary::before {
  content: "＋";
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.page-reports .entry-more[open] summary::before {
  content: "－";
}

.page-reports .more-close {
  display: none;
}

.page-reports .entry-more[open] .more-open {
  display: none;
}

.page-reports .entry-more[open] .more-close {
  display: inline;
}

.page-reports .field-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2) var(--space-3);
  margin: var(--space-3) 0 0;
  padding: 0;
}

.page-reports .field-list > div {
  padding-top: var(--space-1);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-reports .field-list dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-reports .field-list dd {
  margin: calc(var(--space-1) / 2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

/* ---------- 分类分工 ---------- */

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

.page-reports .cat-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-reports .cat-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-reports .cat-item:first-child {
  padding-top: 0;
}

.page-reports .cat-item:last-child {
  border-bottom: 0;
}

.page-reports .cat-index {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.page-reports .cat-item h3 {
  font-size: var(--text-lg);
  margin: 0 0 var(--space-1);
}

.page-reports .cat-item p {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-1);
}

.page-reports .cat-meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

.page-reports .cat-meta .num {
  color: var(--color-accent);
  font-size: var(--text-sm);
}

.page-reports .cat-figure {
  margin: 0;
}

.page-reports .cat-figure img,
.page-reports .method-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: var(--shadow-2);
  filter: saturate(0.7) contrast(1.04);
}

.page-reports .cat-figure .media-caption,
.page-reports .method-figure .media-caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* ---------- 口径与边界 ---------- */

.page-reports .method-note {
  max-width: var(--measure);
  margin: 0 0 var(--space-4);
  padding: var(--space-3);
  background: var(--color-highlight);
  border-left: calc(var(--space-1) / 2) solid var(--color-accent);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-reports .method-table-wrap {
  overflow-x: auto;
  margin-bottom: var(--space-6);
}

.page-reports .method-table-wrap .data-table {
  width: 100%;
  min-width: calc(var(--space-8) * 9);
  font-size: var(--text-sm);
}

.page-reports .method-table-wrap .data-table th,
.page-reports .method-table-wrap .data-table td {
  text-align: left;
  padding: var(--space-2) var(--space-2);
  vertical-align: top;
  line-height: var(--leading-body);
}

.page-reports .method-table-wrap .data-table thead th {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-reports .method-table-wrap .data-table tbody th {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  white-space: nowrap;
}

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

.page-reports .method-table-wrap .data-table td.num {
  font-family: var(--font-mono);
  color: var(--color-accent);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.page-reports .method-figure {
  margin: 0;
}

/* ---------- 归档与更新 ---------- */

.page-reports .archive-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
}

.page-reports .archive-points li {
  padding: var(--space-3) var(--space-3) var(--space-3) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-reports .point-index {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: calc(var(--space-1) / 2);
  font-variant-numeric: tabular-nums;
}

.page-reports .archive-points h3 {
  font-size: var(--text-lg);
  margin: 0 0 var(--space-1);
}

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

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

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-reports .hero-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }

  .page-reports .report-entry {
    grid-template-columns: var(--reports-entry-rail) 1fr;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-4);
  }

  .page-reports .entry-rail {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }

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

  .page-reports .archive-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 960px) {
  .page-reports .reports-layout {
    grid-template-columns: var(--reports-rail-w) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-reports .reports-rail {
    position: sticky;
    top: var(--space-6);
  }

  .page-reports .cats-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-8);
  }

  .page-reports .cat-figure {
    position: sticky;
    top: var(--space-6);
  }
}

@media (min-width: 1200px) {
  .page-reports .entry-summary,
  .page-reports .section-lede,
  .page-reports .cat-item p,
  .page-reports .archive-points p {
    max-width: 74ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-reports .report-entry,
  .page-reports .toc-link,
  .page-reports .tl-node::before,
  .page-reports .tl-hint {
    transition: none;
  }

  .page-reports .tl-hint {
    transform: none;
  }
}

.page-reports {
  --space-5: var(--space-8);
}