.page-cases {
  --cases-offset: 24px;
  --cases-panel-pad: var(--space-4);
}

.page-cases .breadcrumb {
  padding-top: var(--space-3);
  padding-bottom: var(--space-2);
}

/* ---------- 首屏 ---------- */

.page-cases .cases-hero__title {
  margin: 0 0 var(--space-3);
}

.page-cases .cases-hero__lead {
  max-width: 62ch;
  margin: 0 0 var(--space-6);
}

.page-cases .cases-hero__lead a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

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

.page-cases .cases-collage__scene,
.page-cases .cases-collage__stage,
.page-cases .cases-collage__figures {
  margin: 0;
}

.page-cases .cases-collage__scene {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-4);
}

.page-cases .cases-collage__scene-label {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.2em;
}

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

.page-cases .cases-collage__scene-list li {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-cases .cases-collage__stage {
  padding: 0;
  min-height: 240px;
  overflow: hidden;
}

.page-cases .cases-collage__stage .media-frame {
  margin: 0;
  border: 0;
  box-shadow: none;
  height: 100%;
}

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

.page-cases .cases-collage__figures {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-4);
}

.page-cases .cases-collage__figures-label {
  margin: 0;
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  color: var(--color-contrast-ink);
  opacity: 0.76;
}

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

.page-cases .cases-figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-cases .cases-figure dt {
  order: 2;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.76;
}

.page-cases .cases-figure dd {
  order: 1;
  margin: 0;
  font-size: var(--text-2xl);
  line-height: 1.1;
  color: var(--color-contrast-accent);
}

/* ---------- 场景区标题 ---------- */

.page-cases .cases-head {
  max-width: 68ch;
  margin-bottom: var(--space-6);
}

.page-cases .cases-head h2 {
  margin: 0 0 var(--space-2);
}

.page-cases .cases-head .lead {
  margin: 0;
}

.page-cases .cases-tabs .tablist {
  margin-bottom: var(--space-6);
}

.page-cases .cases-panel[hidden] {
  display: none;
}

.page-cases .cases-panel__intro {
  max-width: 70ch;
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-cases .cases-panel__media {
  margin: 0 0 var(--space-4);
}

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

/* ---------- 场景卡 ---------- */

.page-cases .case-card {
  background: var(--color-surface);
  border: var(--border-thick) solid var(--color-ink);
  box-shadow: var(--shadow-2);
  margin-bottom: var(--space-6);
}

.page-cases .case-card__head {
  padding: var(--cases-panel-pad);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.page-cases .case-card__title {
  margin: 0;
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-cases .case-card__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  padding: var(--space-3) var(--cases-panel-pad);
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-cases .case-card__label {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
}

.page-cases .case-card__row p {
  margin: 0;
  max-width: 68ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-cases .case-card__row--need {
  background: var(--color-surface-alt);
}

.page-cases .case-card__row--do {
  background: var(--color-surface);
}

.page-cases .case-card__row--result {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-cases .case-card__row--result .case-card__label {
  color: var(--color-contrast-accent);
}

.page-cases .case-card__foot {
  display: flex;
  justify-content: flex-end;
  padding: var(--space-2) var(--cases-panel-pad);
  border-top: var(--border-thick) solid var(--color-ink);
  background: var(--color-surface);
}

.page-cases .cases-link {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-cases .cases-link:hover,
.page-cases .cases-link:focus-visible {
  color: var(--color-ink);
}

/* ---------- 结果数字与口径提示 ---------- */

.page-cases .case-num {
  position: relative;
  display: inline-block;
  font-size: var(--text-lg);
  line-height: 1.2;
  color: var(--color-contrast-accent);
  border-bottom: var(--border-thin) dashed var(--color-contrast-line);
  cursor: help;
}

.page-cases .case-num__note {
  position: absolute;
  left: 0;
  bottom: calc(100% + var(--space-1));
  z-index: 4;
  width: min(280px, 72vw);
  padding: var(--space-2);
  background: var(--color-surface);
  color: var(--color-ink);
  border: var(--border-thin) solid var(--color-ink);
  box-shadow: var(--shadow-1);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  line-height: 1.6;
  letter-spacing: normal;
  opacity: 0;
  visibility: hidden;
  transition: opacity 120ms linear;
}

.page-cases .case-num:hover .case-num__note,
.page-cases .case-num:focus-visible .case-num__note {
  opacity: 1;
  visibility: visible;
}

/* ---------- 起步出口 ---------- */

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

.page-cases .cases-exits__title {
  margin: 0 0 var(--space-2);
  color: var(--color-contrast-ink);
}

.page-cases .cases-exits__lead {
  margin: 0 0 var(--space-6);
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.page-cases .cases-exits__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-cases .cases-exit {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border: var(--border-thick) solid var(--color-contrast-line);
  background: transparent;
  transition: transform 120ms linear, box-shadow 120ms linear;
}

.page-cases .cases-exit:hover,
.page-cases .cases-exit:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-2);
}

.page-cases .cases-exit__tag {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-contrast-accent);
}

.page-cases .cases-exit__name {
  margin: 0;
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
}

.page-cases .cases-exit__name a {
  color: var(--color-contrast-ink);
  text-decoration: none;
}

.page-cases .cases-exit__name a:hover,
.page-cases .cases-exit__name a:focus-visible {
  color: var(--color-contrast-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-cases .cases-exit__text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.66;
  color: var(--color-contrast-ink);
  opacity: 0.84;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-cases .case-card__row {
    grid-template-columns: 92px 1fr;
    align-items: start;
    gap: var(--space-3);
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
  }

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

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

@media (min-width: 900px) {
  .page-cases .cases-collage {
    grid-template-columns: 1.15fr 1fr 0.95fr;
    align-items: start;
  }

  .page-cases .cases-collage__scene {
    min-height: 420px;
    padding: var(--cases-panel-pad);
  }

  .page-cases .cases-collage__stage {
    min-height: 320px;
    margin-top: var(--cases-offset);
  }

  .page-cases .cases-collage__stage img {
    min-height: 320px;
  }

  .page-cases .cases-collage__figures {
    min-height: 260px;
    margin-top: calc(var(--cases-offset) * 2);
  }
}

@media (min-width: 1060px) {
  .page-cases .cases-exits__list {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-cases .cases-panel__media {
    max-width: 860px;
  }
}

@media (max-width: 599px) {
  .page-cases {
    --cases-panel-pad: var(--space-3);
  }

  .page-cases .cases-collage__scene {
    padding: var(--space-3);
  }

  .page-cases .cases-exits {
    padding: var(--space-4) var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-cases .cases-exit {
    transition: none;
  }

  .page-cases .cases-exit:hover,
  .page-cases .cases-exit:focus-within {
    transform: none;
  }

  .page-cases .case-num__note {
    transition: none;
  }
}