.page-cases {
  --cases-card-gap: var(--space-3);
}

/* ---------- 首屏：深色计分牌 + 斜切网格 ---------- */
.page-cases .cases-hero {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  overflow: hidden;
}

.page-cases .cases-hero__grid {
  display: grid;
  gap: var(--space-4);
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.page-cases .cases-hero__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: var(--color-contrast-surface);
}

.page-cases .cases-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: grayscale(1) contrast(1.1) brightness(0.85);
}

.page-cases .cases-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--overlay-scrim),
    linear-gradient(color-mix(in srgb, var(--color-contrast-line) 70%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--color-contrast-line) 70%, transparent) 1px, transparent 1px);
  background-size: 100% 100%, 34px 34px, 34px 34px;
  pointer-events: none;
}

.page-cases .cases-hero__tag {
  position: absolute;
  left: var(--space-2);
  bottom: var(--space-2);
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-cases .cases-hero__tag .label-mono {
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-surface) 76%, transparent);
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero__body {
  color: var(--color-contrast-ink);
}

.page-cases .cases-crumb {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

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

.page-cases .cases-hero__body h1 {
  margin: 0 0 var(--space-2);
  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);
}

.page-cases .cases-hero__lede {
  margin: 0 0 var(--space-4);
  max-width: 46ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

.page-cases .cases-hero__figures {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-contrast-line);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-cases .cases-hero__figures > li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
  background: var(--color-contrast-surface);
}

.page-cases .cases-fig {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero__figures .label-mono {
  color: color-mix(in srgb, var(--color-contrast-ink) 66%, transparent);
}

/* ---------- 目录条 ---------- */
.page-cases .cases-index {
  background: var(--color-surface-deep);
  border-bottom: var(--border-thin) solid var(--color-line);
  padding-block: var(--space-3);
}

.page-cases .cases-index__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}

.page-cases .cases-index__grid {
  display: grid;
  gap: 1px;
  background: var(--color-line);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-cases .cases-index__grid a {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background 200ms ease, color 200ms ease;
}

.page-cases .cases-index__grid a:hover,
.page-cases .cases-index__grid a:focus-visible,
.page-cases .cases-index__grid a.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.page-cases .cases-index__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
}

.page-cases .cases-index__count {
  margin-left: auto;
  color: var(--color-ink-muted);
}

/* ---------- 样本分组 ---------- */
.page-cases .cases-group {
  padding-block: var(--section-y);
  border-top: var(--border-thin) dotted var(--color-line);
}

.page-cases .cases-group--tint {
  background: var(--color-surface-alt);
}

.page-cases .cases-group__head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.page-cases .cases-group__bar {
  display: block;
  width: 56px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  margin-bottom: var(--space-2);
}

.page-cases .cases-group__bar--accent {
  background: var(--color-accent);
}

.page-cases .cases-group__meta .label-mono {
  display: block;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-1);
}

.page-cases .cases-group__meta h2 {
  margin: 0 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-cases .cases-group__note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-group__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface-deep);
}

.page-cases .cases-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08);
}

.page-cases .cases-group__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--color-primary) 24%, transparent);
  mix-blend-mode: multiply;
  pointer-events: none;
}

.page-cases .cases-group--tint .cases-group__figure::after {
  background: color-mix(in srgb, var(--color-accent) 20%, transparent);
}

.page-cases .cases-group__figure--plain {
  background: var(--color-surface-deep);
}

.page-cases .cases-group__figure--plain::after {
  content: none;
}

/* 场馆维度里的标签计数面板 */
.page-cases .cases-venue-map {
  display: grid;
  gap: 1px;
  padding: var(--space-2);
  background: var(--color-surface-deep);
}

.page-cases .cases-venue-map__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-1);
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.page-cases .cases-venue-map__row--total {
  border-bottom: 0;
  border-top: var(--border-thick) solid var(--color-primary);
}

.page-cases .cases-venue-map__val {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.page-cases .cases-venue-map__row--total .cases-venue-map__val {
  color: var(--color-accent);
}

/* 净胜球分组里的条形示意 */
.page-cases .cases-chip {
  margin: var(--space-3) 0 0;
  padding: var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.page-cases .cases-chip svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 110px;
}

.page-cases .chip-home {
  fill: var(--color-primary);
}

.page-cases .chip-away {
  fill: var(--color-accent);
}

.page-cases .chip-rule {
  stroke: var(--color-line);
  stroke-width: 1;
}

.page-cases .chip-rule--dash {
  stroke-dasharray: 3 4;
}

.page-cases .cases-chip figcaption {
  margin-top: var(--space-2);
  color: var(--color-ink-muted);
}

/* ---------- 样本条目 ---------- */
.page-cases .cases-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cases-card-gap);
}

.page-cases .case {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-3) var(--space-3) calc(var(--space-3) + 6px);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color 200ms ease, background 200ms ease;
}

.page-cases .case::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.page-cases .case--away::before {
  background: var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  left: auto;
  right: 0;
}

.page-cases .case--away {
  padding-left: var(--space-3);
  padding-right: calc(var(--space-3) + 6px);
}

.page-cases .case:hover {
  border-color: color-mix(in srgb, var(--color-primary) 55%, var(--color-line));
}

.page-cases .case__top {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin: 0;
}

.page-cases .case__idx {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.page-cases .case__top .label-mono {
  color: var(--color-ink-muted);
}

.page-cases .case__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-cases .case--away .case__title .u-accent {
  text-decoration-color: var(--color-accent);
}

.page-cases .case__fields {
  margin: 0;
  display: grid;
  gap: var(--space-1);
}

.page-cases .case__field {
  display: grid;
  grid-template-columns: 3.6em minmax(0, 1fr);
  gap: var(--space-2);
}

.page-cases .case__field dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

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

.page-cases .case__cond {
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--color-ink-muted);
}

/* ---------- 收尾入口 ---------- */
.page-cases .cases-outro {
  padding-block: var(--section-y);
  background: var(--color-primary-soft);
  border-top: var(--border-thin) solid var(--color-primary);
}

.page-cases .cases-outro h2 {
  margin: 0 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-cases .cases-outro__lede {
  margin: 0 0 var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-outro__links {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) dotted color-mix(in srgb, var(--color-primary) 45%, transparent);
}

.page-cases .cases-outro__links li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) dotted color-mix(in srgb, var(--color-primary) 45%, transparent);
}

.page-cases .cases-outro__links a {
  min-width: 7em;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thick) solid var(--color-primary);
}

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

.page-cases .cases-outro__links span {
  flex: 1 1 18ch;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-cases .cases-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-cases .cases-hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-cases .cases-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
    gap: var(--space-4);
    padding-top: calc(var(--section-y-lg) + var(--space-2));
    padding-bottom: var(--section-y-lg);
  }

  .page-cases .cases-hero__media {
    clip-path: polygon(0 0, 100% 0, 87% 100%, 0 100%);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  }

  .page-cases .cases-index__grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-cases .cases-group__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
    gap: var(--space-4);
  }

  .page-cases .cases-group--flip .cases-group__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  }

  .page-cases .cases-group--flip .cases-group__figure {
    grid-column: 1;
    grid-row: 1;
  }

  .page-cases .cases-group--flip .cases-group__meta {
    grid-column: 2;
    grid-row: 1;
  }

  .page-cases .cases-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    padding-top: var(--space-2);
  }

  .page-cases .cases-grid > .case:nth-child(2) {
    transform: translateY(28px);
  }

  .page-cases .cases-grid > .case:nth-child(3) {
    transform: translateY(14px);
  }

  .page-cases .case__cond {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
    overflow: hidden;
    transition: max-height 220ms ease, opacity 220ms ease, margin-top 220ms ease, padding-top 220ms ease;
  }

  .page-cases .case:hover .case__cond,
  .page-cases .case:focus-within .case__cond {
    max-height: 8em;
    margin-top: 0;
    padding-top: var(--space-2);
    border-top-color: var(--color-line);
    opacity: 1;
  }
}

@media (min-width: 1024px) {
  .page-cases .cases-hero__grid {
    gap: var(--space-6);
  }

  .page-cases .cases-chip {
    max-width: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-cases .case,
  .page-cases .case__cond,
  .page-cases .cases-index__grid a {
    transition: none;
  }

  .page-cases .cases-grid > .case:nth-child(2),
  .page-cases .cases-grid > .case:nth-child(3) {
    transform: none;
  }
}