/* =========================================================
   场景实录 /showcase/  ·  page-cases
   ========================================================= */

.page-cases {
  --band-color: var(--color-primary);
  --case-hair: calc(var(--space-1) / 4);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-cases .cases-crumb {
  padding: var(--space-4) 0 var(--space-2);
}

/* ---------- 首屏 ---------- */
.page-cases .cases-hero {
  padding-bottom: var(--space-6);
}

.page-cases .cases-hero__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-contrast-surface);
  box-shadow: var(--shadow-2);
}

.page-cases .cases-hero__img {
  display: block;
  width: 100%;
  aspect-ratio: 1200 / 620;
  min-height: 400px;
  object-fit: cover;
}

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

.page-cases .cases-hero__body {
  position: absolute;
  inset: auto 0 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-3);
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero__eyebrow {
  margin: 0;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.16em;
  color: var(--color-contrast-accent);
}

.page-cases .cases-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.06;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  text-wrap: balance;
}

.page-cases .cases-hero__lead {
  margin: 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-cases .cases-hero__stat {
  display: flex;
  flex-direction: column;
  gap: var(--case-hair);
  padding-left: var(--space-2);
  border-left: calc(var(--border-thick) * 2) solid var(--color-contrast-accent);
}

.page-cases .cases-hero__val {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-ink);
}

.page-cases .cases-hero__val .unit {
  margin-left: var(--case-hair);
  font-size: var(--text-xs);
  font-weight: 600;
}

.page-cases .cases-hero__lab {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.72;
}

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

.page-cases .cases-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--case-hair) var(--space-2);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-contrast-surface) 55%, transparent);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.04em;
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.page-cases .cases-tag:hover,
.page-cases .cases-tag:focus-visible {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

/* ---------- 筛选条 ---------- */
.page-cases .cases-filter {
  padding-bottom: var(--space-6);
}

.page-cases .cases-filter__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.page-cases .cases-filter__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

/* ---------- 主题带 ---------- */
.page-cases .cases-band {
  padding-left: var(--space-3);
  padding-bottom: var(--space-6);
  border-left: calc(var(--border-thick) * 3) solid var(--band-color);
}

.page-cases .cases-band--family {
  --band-color: var(--color-primary);
}

.page-cases .cases-band--urgent {
  --band-color: var(--color-accent);
}

.page-cases .cases-band--long {
  --band-color: var(--color-contrast-surface);
}

.page-cases .cases-band__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: var(--measure);
  margin-bottom: var(--space-4);
}

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

.page-cases .cases-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
}

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

/* ---------- 单条实录 ---------- */
.page-cases .case-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.page-cases .case-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-cases .cases-band--urgent .case-card:hover {
  border-color: var(--color-accent);
}

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

.page-cases .case-card__dur {
  display: inline-flex;
  align-items: baseline;
  gap: var(--case-hair);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.page-cases .case-card__dur .unit {
  font-size: var(--text-xs);
}

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

.page-cases .case-card__media {
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-cases .case-card__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 200ms ease;
}

.page-cases .case-card:hover .case-card__media img {
  transform: scale(1.03);
}

.page-cases .case-card__fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
}

.page-cases .case-card__field {
  margin: 0;
}

.page-cases .case-card__field dt {
  margin-bottom: var(--case-hair);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

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

.page-cases .case-card__result {
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dashed var(--color-line);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .case-card__result-key {
  display: block;
  width: fit-content;
  margin-bottom: var(--case-hair);
  padding: 0 var(--space-1);
  border-radius: calc(var(--radius-sm) / 3);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-heading);
  letter-spacing: 0.08em;
}

/* ---------- 实录写法说明 ---------- */
.page-cases .cases-spec {
  border-top: var(--border-thin) solid var(--color-line);
}

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

.page-cases .cases-spec__intro {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

.page-cases .cases-spec__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-cases .cases-spec__item {
  display: flex;
  flex-direction: column;
  gap: var(--case-hair);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-left: calc(var(--border-thick) * 3) solid var(--color-primary);
  border-radius: var(--radius-sm);
}

.page-cases .cases-spec__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}

.page-cases .cases-spec__item h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

/* ---------- 行动区 ---------- */
.page-cases .cases-cta__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  overflow: hidden;
  background: var(--color-contrast-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2);
}

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

.page-cases .cases-cta__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
}

.page-cases .cases-cta__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  color: var(--color-contrast-ink);
}

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

.page-cases .cases-cta__text {
  margin: 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-cases .cases-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

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

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

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-cases .cases-spec__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-cases .cases-spec__list > :last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 720px) {
  .page-cases .cases-hero__body {
    padding: var(--space-6) var(--space-4);
  }

  .page-cases .cases-hero__img {
    min-height: 480px;
  }

  .page-cases .cases-band {
    padding-left: var(--space-4);
  }

  .page-cases .cases-band__title {
    font-size: var(--text-3xl);
  }

  .page-cases .cases-band__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-cases .cases-cta__body {
    padding: var(--space-6) var(--space-4);
  }
}

@media (min-width: 900px) {
  .page-cases .cases-hero__img {
    min-height: 540px;
  }

  .page-cases .cases-spec__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-cases .cases-cta__panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ---------- 桌面：错落主题带 ---------- */
@media (min-width: 1024px) {
  .page-cases .cases-hero__body {
    padding: var(--space-8);
  }

  .page-cases .cases-band {
    padding-bottom: var(--space-8);
  }

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

  .page-cases .cases-band--family .cases-band__grid > :nth-child(1) {
    grid-column: span 5;
  }

  .page-cases .cases-band--family .cases-band__grid > :nth-child(2) {
    grid-column: span 4;
  }

  .page-cases .cases-band--family .cases-band__grid > :nth-child(3) {
    grid-column: span 3;
  }

  .page-cases .cases-band--urgent .cases-band__grid > :nth-child(1) {
    grid-column: span 4;
  }

  .page-cases .cases-band--urgent .cases-band__grid > :nth-child(2) {
    grid-column: span 5;
  }

  .page-cases .cases-band--urgent .cases-band__grid > :nth-child(3) {
    grid-column: span 3;
  }

  .page-cases .cases-band--long .cases-band__grid > :nth-child(1) {
    grid-column: span 5;
  }

  .page-cases .cases-band--long .cases-band__grid > :nth-child(2) {
    grid-column: span 3;
  }

  .page-cases .cases-band--long .cases-band__grid > :nth-child(3) {
    grid-column: span 4;
  }

  .page-cases .cases-cta__media img {
    min-height: 320px;
  }
}
<<<END>>>