.page-cases {
  --cases-gap: var(--gutter);
  overflow-x: hidden;
}

.page-cases .section {
  overflow-wrap: break-word;
}

/* ---------- 首屏 ---------- */
.page-cases .cases-hero {
  padding-bottom: var(--space-8);
}

.page-cases .cases-hero .breadcrumbs {
  margin-bottom: var(--space-4);
}

.page-cases .cases-hero .eyebrow {
  margin: 0 0 var(--space-2);
}

.page-cases .cases-hero-lede {
  margin-top: var(--space-4);
  display: grid;
  gap: var(--space-3);
}

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

.page-cases .cases-hero-figure {
  margin: var(--space-6) 0 0;
}

.page-cases .cases-hero-figure .figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--color-contrast-surface);
}

.page-cases .cases-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}

.page-cases .cases-hero-figure .figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.page-cases .cases-hero-overlay {
  position: absolute;
  z-index: 1;
  inset: auto 0 0 0;
  padding: var(--space-3);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-2) var(--space-6);
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero-kicker {
  flex: 0 0 100%;
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

.page-cases .cases-hero-bignum {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 0.82;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-accent);
}

.page-cases .cases-hero-bignum em {
  font-style: normal;
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  letter-spacing: 0;
  margin-left: var(--space-2);
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero-stats {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
}

.page-cases .cases-hero-stats li {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.page-cases .cases-hero-stat-num {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero-stat-label {
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
  opacity: 0.74;
}

/* ---------- 场景索引 ---------- */
.page-cases .cases-index-grid {
  display: grid;
  gap: var(--space-4);
}

.page-cases .cases-index-head .eyebrow {
  margin: 0 0 var(--space-2);
}

.page-cases .cases-index-head .section-title {
  margin: 0;
}

.page-cases .cases-index-note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-index-toc {
  margin: 0;
}

.page-cases .cases-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-index-list li {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-index-list a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  text-decoration: none;
  color: var(--color-ink);
  font-size: var(--text-lg);
  font-weight: 500;
  transition: color 180ms ease, padding-left 180ms ease;
}

.page-cases .cases-index-list a:hover,
.page-cases .cases-index-list a:focus-visible {
  color: var(--color-primary);
  padding-left: var(--space-1);
}

.page-cases .cases-index-list a.is-active {
  color: var(--color-primary);
}

.page-cases .cases-index-num {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink-muted);
}

.page-cases .cases-index-list a.is-active .cases-index-num,
.page-cases .cases-index-list a:hover .cases-index-num {
  color: var(--color-primary);
}

.page-cases .cases-index-count {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 六类场景分组 ---------- */
.page-cases .cases-scene-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--cases-gap);
  row-gap: var(--space-8);
}

.page-cases .cases-scene-grid > * {
  grid-column: 1 / -1;
  min-width: 0;
}

.page-cases .cases-scene {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-scene-num {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 0.9;
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary);
}

.page-cases .cases-scene-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-cases .cases-scene-meta {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-cases .cases-scene-media {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-deep);
  margin: var(--space-1) 0 var(--space-2);
}

.page-cases .cases-scene-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-contrast-surface);
  opacity: 0.16;
  pointer-events: none;
}

.page-cases .cases-scene-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(1) contrast(1.04);
}

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

.page-cases .cases-scene-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-cases .cases-scene-points li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-scene-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: var(--border-thin);
  background: var(--color-line);
}

.page-cases .cases-scene-link {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
}

.page-cases .cases-scene-link a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-line);
  padding-bottom: 2px;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-cases .cases-scene-link a:hover,
.page-cases .cases-scene-link a:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.page-cases .cases-scene-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface-deep);
  border-top: var(--border-thick) solid var(--color-primary);
  align-self: start;
}

.page-cases .cases-scene-aside p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-scene-aside .cases-scene-link a {
  border-bottom: 0;
}

/* ---------- 案例条目清单 ---------- */
.page-cases .cases-records-head {
  display: grid;
  gap: var(--space-2);
  padding-bottom: var(--space-6);
}

.page-cases .cases-records-head .eyebrow {
  margin: 0;
}

.page-cases .cases-records-head .section-title {
  margin: 0;
}

.page-cases .cases-records-head .section-note {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-cases .cases-records-list {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-record {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-6) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-record-num {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 0.9;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink-muted);
}

.page-cases .cases-record-body {
  min-width: 0;
  display: grid;
  gap: var(--space-3);
}

.page-cases .cases-record-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-cases .cases-record-fields {
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.page-cases .cases-record-fields > div {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: var(--space-2);
  align-items: baseline;
  padding-top: var(--space-1);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-record-fields dt {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-cases .cases-record-fields dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-status {
  display: inline-block;
  width: var(--space-1);
  height: var(--space-1);
  margin-right: var(--space-1);
  background: var(--color-primary);
}

/* ---------- 收录边界 ---------- */
.page-cases .cases-scope {
  background: var(--color-surface-deep);
}

.page-cases .cases-scope-grid {
  display: grid;
  gap: var(--space-4);
}

.page-cases .cases-scope-head .eyebrow {
  margin: 0 0 var(--space-2);
}

.page-cases .cases-scope-head .section-title {
  margin: 0;
  font-size: var(--text-2xl);
}

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

.page-cases .cases-scope-body p:last-child {
  margin-bottom: 0;
}

.page-cases .cases-scope-body a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid var(--color-primary);
  transition: color 180ms ease;
}

.page-cases .cases-scope-body a:hover,
.page-cases .cases-scope-body a:focus-visible {
  color: var(--color-accent);
}

/* ---------- 收束区块 ---------- */
.page-cases .cases-next {
  padding-block: clamp(var(--space-8), 9vw, var(--section-y));
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-cases .cases-next .eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-contrast-accent);
}

.page-cases .cases-next-title {
  margin: 0;
  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-contrast-ink);
}

.page-cases .cases-next-lede {
  margin: var(--space-4) 0 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-cases .cases-next-actions {
  margin: var(--space-6) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.page-cases .cases-next .btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: var(--color-primary);
}

.page-cases .cases-next .btn--ghost {
  background: transparent;
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

.page-cases .cases-next .btn--ghost:hover,
.page-cases .cases-next .btn--ghost:focus-visible {
  color: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
}

.page-cases .cases-next-meta {
  margin: var(--space-8) 0 0;
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  display: grid;
  gap: var(--space-4);
}

.page-cases .cases-next-meta dt {
  margin: 0 0 var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-contrast-ink);
  opacity: 0.62;
}

.page-cases .cases-next-meta dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  overflow-wrap: anywhere;
}

.page-cases .cases-next .copy-btn {
  margin-left: var(--space-2);
  padding: 2px var(--space-1);
  font-size: var(--text-xs);
  background: transparent;
  color: var(--color-contrast-accent);
  border: var(--border-thin) solid var(--color-contrast-line);
  cursor: pointer;
  transition: border-color 180ms ease, color 180ms ease;
}

.page-cases .cases-next .copy-btn:hover,
.page-cases .cases-next .copy-btn:focus-visible,
.page-cases .cases-next .copy-btn.is-done {
  color: var(--color-contrast-accent);
  border-color: var(--color-contrast-accent);
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-cases .cases-hero-figure .figure::after {
    display: none;
  }

  .page-cases .cases-hero-overlay {
    position: static;
    background: var(--color-contrast-surface);
    padding: var(--space-4) var(--space-3);
  }

  .page-cases .cases-hero-figure img {
    aspect-ratio: 16 / 9;
  }
}

@media (min-width: 720px) {
  .page-cases .cases-scene-grid > .span-4 {
    grid-column: span 4;
  }

  .page-cases .cases-scene-grid > .span-5 {
    grid-column: span 5;
  }

  .page-cases .cases-scene-grid > .span-7 {
    grid-column: span 7;
  }

  .page-cases .cases-index-grid {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-8);
    align-items: start;
  }

  .page-cases .cases-record {
    grid-template-columns: 4.5rem minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-cases .cases-record-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3) var(--space-6);
  }

  .page-cases .cases-scope-grid {
    grid-template-columns: 4fr 8fr;
    gap: var(--space-8);
    align-items: start;
  }

  .page-cases .cases-next-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .page-cases .cases-hero-overlay {
    padding: var(--space-6) var(--space-4);
    gap: var(--space-3) var(--space-8);
  }

  .page-cases .cases-scene-grid {
    row-gap: var(--space-8);
  }
}
<<<END>>>