.page-cases {
  --cases-veil-soft: color-mix(in srgb, var(--color-surface) 88%, transparent);
  --cases-veil-mid: color-mix(in srgb, var(--color-surface) 66%, transparent);
  --cases-veil-low: color-mix(in srgb, var(--color-surface) 30%, transparent);
  --cases-glass: color-mix(in srgb, var(--color-surface) 10%, transparent);
  --cases-glass-strong: color-mix(in srgb, var(--color-surface) 16%, transparent);
  --cases-tint: color-mix(in srgb, var(--color-primary-soft) 58%, var(--color-surface));
  --cases-hero-glow-a: color-mix(in srgb, var(--color-primary) 20%, transparent);
  --cases-hero-glow-b: color-mix(in srgb, var(--color-accent) 16%, transparent);
}

/* ---------- 首屏 ---------- */
.page-cases .cases-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: var(--space-6) var(--space-8);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background-image: linear-gradient(158deg, var(--color-surface) 0%, var(--cases-tint) 54%, var(--color-highlight) 100%);
}

.page-cases .cases-hero::before {
  content: "";
  position: absolute;
  inset: -18% -12%;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(58% 52% at 28% 38%, var(--cases-hero-glow-a), transparent 72%),
    radial-gradient(46% 46% at 80% 64%, var(--cases-hero-glow-b), transparent 74%);
  animation: cases-drift 20s ease-in-out infinite alternate;
}

@keyframes cases-drift {
  from { transform: translate3d(-2%, 0, 0) scale(1); }
  to { transform: translate3d(3%, -2%, 0) scale(1.06); }
}

.page-cases .cases-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-cases .cases-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
}

.page-cases .cases-hero__scrim {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    180deg,
    var(--cases-veil-soft) 0%,
    var(--cases-veil-mid) 46%,
    var(--cases-veil-low) 100%
  );
}

.page-cases .cases-hero__inner {
  position: relative;
  z-index: 1;
}

.page-cases .cases-hero__title {
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
  max-width: 13ch;
}

.page-cases .cases-hero__lede {
  max-width: 56ch;
  color: var(--color-ink);
}

.page-cases .cases-hero__figures {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-cases .cases-hero__num {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background-image: linear-gradient(
    152deg,
    color-mix(in srgb, var(--color-surface) 78%, transparent) 0%,
    color-mix(in srgb, var(--color-surface) 52%, transparent) 100%
  );
  box-shadow: var(--shadow-1);
  backdrop-filter: blur(10px);
}

.page-cases .cases-hero__num-value {
  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-primary);
}

.page-cases .cases-hero__num-note {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-cases .cases-hero__num--b,
.page-cases .cases-hero__num--c {
  transform: none;
}

/* ---------- 矩阵区头部与筛选 ---------- */
.page-cases .cases-matrix__head {
  max-width: 68ch;
  padding-top: var(--section-y);
}

.page-cases .cases-matrix__title {
  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-2) 0 var(--space-3);
}

.page-cases .cases-matrix__lede {
  color: var(--color-ink-soft);
}

.page-cases .cases-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
  margin-top: var(--space-4);
}

.page-cases .cases-filter__label {
  margin: 0;
  flex: 0 0 auto;
}

.page-cases .cases-filter .filter-chip {
  font-size: var(--text-sm);
}

/* ---------- 主题区块 ---------- */
.page-cases .theme-block {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: var(--space-8);
  padding-block: var(--section-y);
}

.page-cases .theme-block__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.page-cases .theme-block__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-cases .theme-block__scrim {
  position: absolute;
  inset: 0;
  background-image: var(--overlay-scrim);
}

.page-cases .theme-block--odds,
.page-cases .theme-block--region {
  background-image: linear-gradient(
    160deg,
    var(--color-surface-alt) 0%,
    var(--cases-tint) 62%,
    var(--color-highlight) 100%
  );
}

.page-cases .theme-block--odds .theme-block__scrim,
.page-cases .theme-block--region .theme-block__scrim {
  background-image: linear-gradient(
    160deg,
    var(--cases-veil-soft) 0%,
    var(--cases-veil-mid) 58%,
    var(--cases-veil-low) 100%
  );
}

.page-cases .theme-block--cup {
  color: var(--color-contrast-ink);
}

.page-cases .theme-block__head {
  max-width: 62ch;
}

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

.page-cases .theme-block--cup .theme-block__title {
  color: var(--color-contrast-ink);
}

.page-cases .theme-block__head p {
  color: var(--color-ink-soft);
  max-width: 60ch;
}

.page-cases .theme-block--cup .theme-block__head p {
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-cases .field-label--console {
  color: var(--color-contrast-accent);
}

/* ---------- 档案网格 ---------- */
.page-cases .dossier-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-cases .dossier {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-cases .theme-block--cup .dossier {
  color: var(--color-contrast-ink);
  background: var(--cases-glass);
  box-shadow: none;
  backdrop-filter: blur(8px);
}

.page-cases .dossier__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  flex-wrap: wrap;
}

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

.page-cases .theme-block--cup .dossier__index {
  color: var(--color-contrast-accent);
}

.page-cases .theme-block--cup .dossier .field-label {
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

.page-cases .dossier .card__title {
  margin: 0;
  font-size: var(--text-lg);
  line-height: 1.35;
}

.page-cases .dossier__media {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-cases .dossier__media-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-cases .dossier__field {
  display: grid;
  grid-template-columns: 3.2em minmax(0, 1fr);
  gap: var(--space-1);
  align-items: start;
}

.page-cases .dossier__term {
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
  padding-top: 0.35em;
}

.page-cases .theme-block--cup .dossier__term {
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

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

.page-cases .theme-block--cup .dossier__desc {
  color: color-mix(in srgb, var(--color-contrast-ink) 90%, transparent);
}

.page-cases .dossier__result {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  margin: 0;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-highlight);
}

.page-cases .theme-block--cup .dossier__result {
  background: color-mix(in srgb, var(--color-contrast-accent) 18%, transparent);
}

.page-cases .dossier__result-tag {
  flex: 0 0 auto;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-accent);
}

.page-cases .theme-block--cup .dossier__result-tag {
  color: var(--color-contrast-accent);
}

.page-cases .dossier__result-text {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-cases .theme-block--cup .dossier__result-text {
  color: var(--color-contrast-ink);
}

.page-cases .dossier__toggle {
  align-self: flex-start;
  margin-top: auto;
}

.page-cases .theme-block--cup .dossier__toggle.btn--soft {
  color: var(--color-contrast-ink);
  background: var(--cases-glass-strong);
}

.page-cases .theme-block--cup .expand-panel {
  color: color-mix(in srgb, var(--color-contrast-ink) 86%, transparent);
}

.page-cases .cases-trend {
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-weight: var(--weight-heading);
}

.page-cases .cases-trend--down {
  color: var(--color-ink-muted);
}

/* ---------- 节奏短注 ---------- */
.page-cases .case-note {
  max-width: 62ch;
  margin-top: var(--space-6);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
}

.page-cases .case-note .field-label {
  color: var(--color-ink-muted);
}

.page-cases .case-note p:last-child {
  margin: var(--space-1) 0 0;
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

/* ---------- 口径区块 ---------- */
.page-cases .cases-caliber__grid {
  display: grid;
  gap: var(--space-6);
}

.page-cases .cases-caliber__title {
  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-2) 0 var(--space-3);
}

.page-cases .cases-caliber__lead .lede {
  color: var(--color-ink-soft);
}

.page-cases .cases-caliber__log {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-cases .cases-caliber__log .log__item {
  padding-bottom: var(--space-4);
}

.page-cases .cases-caliber__log .log__item p {
  margin: 0;
  max-width: 60ch;
}

.page-cases .cases-caliber__log .log__item p.log__stage {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.page-cases .cases-caliber__log .log__item p + p {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 相邻入口 ---------- */
.page-cases .cases-next__title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-2) 0 var(--space-3);
}

.page-cases .cases-next__lede {
  color: var(--color-ink-soft);
  max-width: 64ch;
}

.page-cases .cases-next__grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-cases .cases-next__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  text-decoration: none;
  background-image: linear-gradient(
    150deg,
    var(--color-surface) 0%,
    var(--color-primary-soft) 100%
  );
  box-shadow: var(--shadow-1);
  transition: box-shadow 240ms ease, transform 240ms ease;
}

.page-cases .cases-next__item:hover {
  box-shadow: var(--shadow-2);
  transform: translate3d(0, -2px, 0);
}

.page-cases .cases-next__item:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.page-cases .cases-next__item-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.35;
  color: var(--color-ink);
}

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

  .page-cases .cases-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-cases .cases-hero {
    padding-block: var(--space-8) var(--space-8);
  }

  .page-cases .cases-hero__figures {
    max-width: 700px;
    margin-left: auto;
    margin-top: calc(var(--space-4) * -1);
  }

  .page-cases .cases-hero__num--a {
    transform: translateY(calc(var(--space-2) * 0.75));
  }

  .page-cases .cases-hero__num--b {
    transform: translateY(calc(var(--space-2) * 2));
  }

  .page-cases .cases-hero__num--c {
    transform: translateY(calc(var(--space-1) * -0.5));
  }

  .page-cases .cases-caliber__grid {
    grid-template-columns: 5fr 6fr;
    column-gap: var(--gutter);
    align-items: start;
  }

  .page-cases .dossier-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-cases .dossier--w3 { grid-column: span 3; }
  .page-cases .dossier--w4 { grid-column: span 4; }
  .page-cases .dossier--w5 { grid-column: span 5; }
  .page-cases .dossier--w6 { grid-column: span 6; }
  .page-cases .dossier--w7 { grid-column: span 7; }
  .page-cases .dossier--w8 { grid-column: span 8; }

  .page-cases .theme-block {
    margin-top: var(--section-y-lg);
  }
}

@media (min-width: 1100px) {
  .page-cases .cases-hero__num {
    padding: var(--space-4);
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-cases .cases-hero::before {
    animation: none;
  }

  .page-cases .cases-next__item {
    transition: none;
  }

  .page-cases .cases-next__item:hover {
    transform: none;
  }
}