.page-comparison {
  background: var(--color-surface);
  color: var(--color-ink);
}

/* ---------- 面包屑 ---------- */
.page-comparison .cmp-band--crumb {
  padding: var(--space-3) 0 var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
}

.page-comparison .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-comparison .breadcrumb li + li::before {
  content: "／";
  margin-right: var(--space-1);
  color: var(--color-line);
}

.page-comparison .breadcrumb a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: border-color 160ms ease-out, color 160ms ease-out;
}

.page-comparison .breadcrumb a:hover,
.page-comparison .breadcrumb a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* ---------- 首屏 ---------- */
.page-comparison .cmp-hero {
  padding: var(--space-6) 0 var(--space-3);
}

.page-comparison .cmp-hero__frame {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface-alt);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-lg);
  box-shadow: 8px 8px 0 var(--color-primary-soft);
}

.page-comparison .cmp-hero__title {
  margin: var(--space-2) 0 0;
  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-ink);
  max-width: 14ch;
}

.page-comparison .cmp-hero__lede {
  margin: var(--space-3) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: 40ch;
}

.page-comparison .cmp-hero__figures {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-comparison .cmp-figure {
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: 6px 6px 0 rgba(75, 72, 63, 0.14);
}

.page-comparison .cmp-figure--gold {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-comparison .cmp-figure--magenta {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-comparison .cmp-figure__num {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: -0.01em;
}

.page-comparison .cmp-figure__unit {
  font-size: var(--text-xl);
  margin-left: 0.12em;
  font-weight: 600;
}

.page-comparison .cmp-figure__cap {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  opacity: 0.92;
}

/* 首屏目录预览 */
.page-comparison .cmp-hero__preview {
  padding: var(--space-3);
  background: var(--color-surface-deep);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-lg);
}

.page-comparison .cmp-preview__mark {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-comparison .cmp-preview__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-comparison .cmp-preview__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink);
}

.page-comparison .cmp-preview__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-comparison .cmp-preview__no {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xs);
}

.page-comparison .cmp-preview__list li:nth-child(2) .cmp-preview__no {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-comparison .cmp-preview__more {
  margin: var(--space-3) 0 0;
  padding-top: var(--space-2);
  border-top: 6px double var(--color-ink-muted);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 深色路径带 ---------- */
.page-comparison .cmp-paths {
  margin-top: var(--space-6);
  padding: var(--space-6) 0;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: 6px double var(--color-contrast-line);
  border-bottom: 6px double var(--color-contrast-line);
}

.page-comparison .cmp-paths__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
  max-width: 24ch;
}

.page-comparison .cmp-paths__lede {
  margin: var(--space-2) 0 0;
  max-width: 60ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-comparison .cmp-paths__grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-comparison .cmp-path {
  display: block;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: rgba(231, 230, 228, 0.04);
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: transform 160ms ease-out, border-color 160ms ease-out, box-shadow 160ms ease-out;
}

.page-comparison .cmp-path:hover,
.page-comparison .cmp-path:focus-visible {
  transform: translate(-3px, -3px);
  border-color: var(--color-contrast-accent);
  box-shadow: 5px 5px 0 var(--color-contrast-accent);
}

.page-comparison .cmp-path__k {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
}

.page-comparison .cmp-path__t {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.62;
  color: var(--color-contrast-ink);
}

/* ---------- 主体两列 ---------- */
.page-comparison .cmp-body {
  padding-top: var(--space-6);
}

.page-comparison .cmp-layout {
  display: grid;
  gap: var(--space-6);
  padding-bottom: var(--space-8);
}

/* ---------- 侧边目录 ---------- */
.page-comparison .cmp-toc {
  padding: var(--space-3);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
}

.page-comparison .cmp-toc__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.page-comparison .cmp-toc__group {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-comparison .cmp-toc__group > summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-ink);
  transition: color 160ms ease-out;
}

.page-comparison .cmp-toc__group > summary::-webkit-details-marker {
  display: none;
}

.page-comparison .cmp-toc__group > summary::before {
  content: "＋";
  position: absolute;
  left: 0;
  top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

.page-comparison .cmp-toc__group[open] > summary::before {
  content: "－";
}

.page-comparison .cmp-toc__group > summary:hover,
.page-comparison .cmp-toc__group > summary:focus-visible {
  color: var(--color-accent);
}

.page-comparison .cmp-toc__group ol {
  margin: 0 0 var(--space-2);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-comparison .cmp-toc__link {
  display: block;
  padding: 6px var(--space-2);
  border-radius: var(--radius-sm);
  border-left: var(--border-thick) solid transparent;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: background 160ms ease-out, color 160ms ease-out, border-color 160ms ease-out, transform 160ms ease-out;
}

.page-comparison .cmp-toc__link:hover,
.page-comparison .cmp-toc__link:focus-visible {
  background: var(--color-primary-soft);
  border-left-color: var(--color-accent);
  color: var(--color-ink);
  transform: translateX(2px);
}

.page-comparison .cmp-toc__link[aria-current="true"] {
  background: var(--color-highlight);
  border-left-color: var(--color-accent);
  color: var(--color-ink);
  font-weight: 600;
}

/* ---------- 长文正文 ---------- */
.page-comparison .cmp-doc {
  max-width: var(--measure);
}

.page-comparison .cmp-ch {
  padding: var(--space-6) 0;
  border-top: 6px double var(--color-line);
  scroll-margin-top: var(--space-6);
}

.page-comparison .cmp-ch:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-comparison .cmp-ch__head {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.page-comparison .cmp-ch__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
}

.page-comparison .cmp-ch__num--gold {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: 5px 5px 0 var(--color-primary-soft);
}

.page-comparison .cmp-ch__num--magenta {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  box-shadow: 5px 5px 0 var(--color-highlight);
}

.page-comparison .cmp-ch__title {
  margin: 0;
  padding-top: 2px;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-comparison .cmp-ch__prose p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-comparison .cmp-ch__prose p:last-child {
  margin-bottom: 0;
}

.page-comparison .cmp-ch__prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.page-comparison .cmp-ch__prose a:hover,
.page-comparison .cmp-ch__prose a:focus-visible {
  background: var(--color-highlight);
}

/* ---------- 图片 ---------- */
.page-comparison .cmp-fig {
  margin: var(--space-4) 0;
}

.page-comparison .cmp-fig--slim {
  margin: var(--space-6) 0;
}

.page-comparison .cmp-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
}

.page-comparison .cmp-fig--slim img {
  box-shadow: 8px 8px 0 var(--color-surface-deep);
}

.page-comparison .cmp-fig figcaption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* ---------- 表格 ---------- */
.page-comparison .cmp-tablewrap {
  margin: var(--space-4) 0;
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  -webkit-overflow-scrolling: touch;
}

.page-comparison .cmp-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.page-comparison .cmp-table caption {
  caption-side: top;
  text-align: left;
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-deep);
  border-bottom: 6px double var(--color-ink-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-comparison .cmp-table th,
.page-comparison .cmp-table td {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  vertical-align: top;
  line-height: 1.6;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-comparison .cmp-table thead th {
  background: var(--color-primary-soft);
  color: var(--color-ink);
  font-weight: 600;
  border-bottom: 6px double var(--color-primary);
}

.page-comparison .cmp-table tbody th {
  font-weight: 600;
  color: var(--color-ink);
  white-space: nowrap;
}

.page-comparison .cmp-table tbody tr:nth-child(odd) {
  background: var(--color-surface-alt);
}

.page-comparison .cmp-table tbody tr:nth-child(even) {
  background: var(--color-surface);
}

.page-comparison .cmp-table tbody tr:last-child th,
.page-comparison .cmp-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 要点框 ---------- */
.page-comparison .cmp-note {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-highlight);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.page-comparison .cmp-note > summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding-left: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--color-ink);
}

.page-comparison .cmp-note > summary::-webkit-details-marker {
  display: none;
}

.page-comparison .cmp-note > summary::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.page-comparison .cmp-note[open] > summary::before {
  content: "▾";
}

.page-comparison .cmp-note p {
  margin: var(--space-2) 0 0;
  text-indent: 1.4em;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
  font-weight: 500;
}

.page-comparison .cmp-note p::before {
  content: "「";
  color: var(--color-accent);
  font-weight: 700;
}

.page-comparison .cmp-note p::after {
  content: "」";
  color: var(--color-accent);
  font-weight: 700;
}

/* ---------- 收尾 ---------- */
.page-comparison .cmp-outro {
  margin-top: var(--space-6);
  padding: var(--space-6) 0 var(--space-8);
  border-top: 6px double var(--color-ink-muted);
}

.page-comparison .cmp-outro__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  max-width: 20ch;
}

.page-comparison .cmp-outro__box {
  padding: var(--space-4);
  background: var(--color-primary-soft);
  border: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: 8px 8px 0 var(--color-surface-deep);
}

.page-comparison .cmp-outro__box p {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-comparison .cmp-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-comparison .cmp-hero__figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-comparison .cmp-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-comparison .cmp-hero {
    padding: var(--space-8) 0 var(--space-4);
  }

  .page-comparison .cmp-hero__frame {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: var(--space-6);
    padding: var(--space-6);
  }

  .page-comparison .cmp-hero__preview {
    align-self: start;
    border-left: 6px double var(--color-ink-muted);
    border-top: var(--border-thick) solid var(--color-ink);
    border-right: var(--border-thick) solid var(--color-ink);
    border-bottom: var(--border-thick) solid var(--color-ink);
    padding-left: var(--space-6);
  }
}

@media (min-width: 1040px) {
  .page-comparison .cmp-body {
    padding-top: var(--space-8);
  }

  .page-comparison .cmp-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-comparison .cmp-toc {
    position: sticky;
    top: var(--space-4);
    max-height: calc(100vh - var(--space-8));
    overflow-y: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-comparison .cmp-path,
  .page-comparison .cmp-toc__link,
  .page-comparison .breadcrumb a {
    transition: none;
  }

  .page-comparison .cmp-path:hover,
  .page-comparison .cmp-path:focus-visible {
    transform: none;
  }

  .page-comparison .cmp-toc__link:hover,
  .page-comparison .cmp-toc__link:focus-visible {
    transform: none;
  }
}