.page-cases {
  --cases-shift: 16px;
  --cases-wall-cell: clamp(46px, 8vw, 68px);
  --cases-group-gap: var(--space-6);
}

/* ---------- 首屏 ---------- */
.page-cases .cases-hero {
  padding-block: var(--space-4) var(--space-8);
  overflow: hidden;
}

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

.page-cases .cases-hero-lead .hero-title {
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin-block: var(--space-2) var(--space-3);
}

.page-cases .cases-hero-lead .lede {
  max-width: var(--measure);
}

.page-cases .cases-hero-lead .meta {
  display: block;
  margin-top: var(--space-3);
}

.page-cases .cases-figures {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-4) var(--space-3);
  display: grid;
  gap: var(--space-3);
}

.page-cases .cases-figure {
  display: grid;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-cases .cases-figure:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-cases .cases-figure-value {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
}

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

/* 编号墙 */
.page-cases .cases-wall {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-cases .cases-wall-num {
  display: grid;
  place-items: center;
  width: var(--cases-wall-cell);
  height: var(--cases-wall-cell);
  border-radius: var(--radius-pill);
  border: var(--border-thick) solid var(--color-ink);
  background: var(--color-surface);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  text-decoration: none;
  transition: transform 0.24s ease, background-color 0.24s ease,
    border-color 0.24s ease, color 0.24s ease;
}

.page-cases .cases-wall-num:nth-child(even) {
  margin-top: calc(var(--space-3) * 1.2);
}

.page-cases .cases-wall-num:nth-child(1),
.page-cases .cases-wall-num:nth-child(5),
.page-cases .cases-wall-num:nth-child(9),
.page-cases .cases-wall-num:nth-child(13) {
  width: calc(var(--cases-wall-cell) * 1.16);
  height: calc(var(--cases-wall-cell) * 1.16);
  font-size: var(--text-lg);
}

.page-cases .cases-wall-num:hover,
.page-cases .cases-wall-num:focus-visible {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
  transform: translateY(-4px);
}

.page-cases .cases-wall-num:nth-child(even):hover,
.page-cases .cases-wall-num:nth-child(even):focus-visible {
  transform: translateY(calc(var(--space-3) * 1.2 - 4px));
}

.page-cases .cases-hero-media {
  margin-top: var(--space-8);
}

/* ---------- 目录区 ---------- */
.page-cases .cases-catalog {
  padding-block: var(--section-y);
  background: var(--color-surface-alt);
}

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

.page-cases .cases-section-head .title-xl {
  margin-block: var(--space-2) var(--space-3);
}

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

.page-cases .cases-stream {
  display: grid;
  gap: var(--section-y);
}

/* 分组 */
.page-cases .cases-group {
  display: grid;
  gap: var(--space-3);
}

.page-cases .cases-group-head {
  display: grid;
  gap: var(--space-1);
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-line);
}

.page-cases .cases-group--league .cases-group-head {
  border-left-color: var(--color-primary);
}

.page-cases .cases-group--cup .cases-group-head {
  border-left-color: var(--color-primary);
}

.page-cases .cases-group--esports .cases-group-head {
  border-left-color: var(--color-accent);
}

.page-cases .cases-group--online .cases-group-head {
  border-left-color: var(--color-ink-muted);
}

.page-cases .cases-group-tag {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink-muted);
  letter-spacing: 0.16em;
}

.page-cases .cases-group-head .title-lg {
  margin: 0;
}

.page-cases .cases-group-media {
  margin: 0;
}

.page-cases .cases-group-cards {
  display: grid;
  gap: var(--space-3);
}

/* 卡片 */
.page-cases .case-card {
  position: relative;
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  transition: transform 0.22s ease, border-color 0.22s ease;
}

.page-cases .case-card--league {
  background: var(--color-primary-soft);
  border-color: color-mix(in srgb, var(--color-primary) 30%, var(--color-line));
}

.page-cases .case-card--cup {
  background: var(--color-surface-deep);
}

.page-cases .case-card--esports {
  background: var(--color-highlight);
  border-color: color-mix(in srgb, var(--color-accent) 34%, var(--color-line));
}

.page-cases .case-card--online {
  background: var(--color-surface);
  border-left: var(--border-thick) solid var(--color-ink-muted);
}

.page-cases .case-card:hover,
.page-cases .case-card:focus-within {
  transform: translate(-4px, -4px);
  border-color: var(--color-ink);
}

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

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

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

.page-cases .case-card-meta {
  margin: 0;
}

.page-cases .case-card-nodes {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.28s ease;
}

.page-cases .case-card-nodes > ul {
  overflow: hidden;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-1);
}

.page-cases .case-card-nodes li {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  padding-left: var(--space-3);
  position: relative;
}

.page-cases .case-card-nodes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: var(--space-2);
  height: var(--border-thin);
  background: var(--color-accent);
}

.page-cases .case-card:hover .case-card-nodes,
.page-cases .case-card:focus-within .case-card-nodes {
  grid-template-rows: 1fr;
}

/* ---------- 字段说明 ---------- */
.page-cases .cases-fields {
  padding-block: var(--section-y);
}

.page-cases .cases-fields-grid {
  display: grid;
  gap: var(--space-6);
}

.page-cases .cases-fields-lead .title-xl {
  margin-block: var(--space-2) var(--space-3);
}

.page-cases .cases-field-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-cases .cases-field {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num note";
  gap: var(--space-1) var(--space-3);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-field:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-field-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  line-height: 1;
}

.page-cases .cases-field-name {
  grid-area: name;
  margin: 0;
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

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

/* ---------- 阶梯节点 ---------- */
.page-cases .cases-stairs-sec {
  padding-block: var(--section-y-lg);
  background: var(--color-surface-alt);
}

.page-cases .cases-stairs {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
  border-left: var(--border-thick) solid var(--color-ink);
}

.page-cases .case-stair {
  display: grid;
  grid-template-columns: 84px 1fr;
  align-items: start;
  gap: var(--space-3);
  padding: var(--space-3);
  margin-left: calc(var(--space-1) * var(--i));
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--border-thick) solid var(--color-accent);
  transition: border-color 0.22s ease, transform 0.22s ease;
}

.page-cases .case-stair[style*="--w:3"] {
  border-left-color: var(--color-primary);
}

.page-cases .case-stair[style*="--w:4"] {
  border-left-color: var(--color-ink);
  background: var(--color-primary-soft);
}

.page-cases .case-stair:hover,
.page-cases .case-stair:focus-visible {
  transform: translateX(4px);
  border-color: var(--color-focus);
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

.page-cases .case-stair-mark {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  writing-mode: horizontal-tb;
}

.page-cases .case-stair-body {
  display: grid;
  gap: var(--space-1);
}

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

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

/* ---------- 对照 ---------- */
.page-cases .cases-map {
  padding-block: var(--section-y);
}

.page-cases .cases-map-grid {
  display: grid;
  gap: var(--space-6);
}

.page-cases .cases-map-lead .title-xl {
  margin-block: var(--space-2) var(--space-3);
}

.page-cases .cases-map-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-cases .cases-map-row {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-map-row:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-cases .cases-map-range {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-accent);
  line-height: 1;
}

.page-cases .cases-map-where {
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

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

/* ---------- 相邻入口 ---------- */
.page-cases .cases-next {
  padding-block: var(--section-y);
  background: var(--color-surface-alt);
}

.page-cases .cases-next .rule {
  margin: 0 0 var(--space-6);
}

.page-cases .cases-next-grid {
  display: grid;
  gap: var(--space-3);
}

.page-cases .cases-next-card {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  text-decoration: none;
  transition: transform 0.22s ease, border-color 0.22s ease,
    background-color 0.22s ease;
}

.page-cases .cases-next-card:hover,
.page-cases .cases-next-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-cases .cases-next-label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.06em;
  color: var(--color-primary);
}

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

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

  .page-cases .cases-map-row {
    grid-template-columns: 120px 1fr;
    align-items: baseline;
    column-gap: var(--space-3);
  }

  .page-cases .cases-map-note {
    grid-column: 2;
  }
}

@media (min-width: 880px) {
  .page-cases .cases-hero-top {
    grid-template-columns: minmax(210px, 260px) 1fr;
    align-items: start;
    gap: var(--space-6);
  }

  .page-cases .cases-figures {
    grid-column: 1;
    grid-row: 1;
  }

  .page-cases .cases-hero-lead {
    grid-column: 2;
    grid-row: 1;
  }

  .page-cases .cases-fields-grid {
    grid-template-columns: minmax(260px, 1fr) minmax(0, 1.6fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-cases .cases-map-grid {
    grid-template-columns: minmax(260px, 1fr) minmax(0, 1.5fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-cases .cases-group-cards {
    grid-template-columns: repeat(6, 1fr);
  }

  .page-cases .cases-group-cards > .case-card:nth-child(1) {
    grid-column: span 4;
  }

  .page-cases .cases-group-cards > .case-card:nth-child(2) {
    grid-column: span 2;
  }

  .page-cases .cases-group-cards > .case-card:nth-child(3) {
    grid-column: span 2;
  }

  .page-cases .cases-group-cards > .case-card:nth-child(4) {
    grid-column: span 4;
  }

  .page-cases .cases-group-media {
    width: calc(100% - var(--space-8));
  }

  .page-cases .cases-group:nth-child(even) .cases-group-media {
    width: auto;
    margin-left: var(--space-8);
  }

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

  .page-cases .case-stair {
    grid-template-columns: 110px 1fr;
  }
}

@media (min-width: 1000px) {
  .page-cases .cases-hero-media {
    margin-left: calc(var(--cases-shift) * -1);
    width: calc(100% + var(--cases-shift));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-cases .cases-wall-num,
  .page-cases .case-card,
  .page-cases .case-stair,
  .page-cases .cases-next-card,
  .page-cases .case-card-nodes {
    transition: none;
  }

  .page-cases .case-card:hover,
  .page-cases .case-card:focus-within,
  .page-cases .case-stair:hover,
  .page-cases .case-stair:focus-visible,
  .page-cases .cases-next-card:hover,
  .page-cases .cases-next-card:focus-visible {
    transform: none;
  }
}

.page-cases {
  --i: 1rem;
}