.page-releases {
  --rel-flow-gap: var(--space-4);
}

/* ---------- 首屏记分牌 ---------- */

.page-releases .rel-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.page-releases .rel-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.page-releases .rel-hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.page-releases .rel-hero-inner {
  position: relative;
  z-index: 2;
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
}

.page-releases .rel-hero-crumb {
  margin-bottom: var(--space-6);
  font-size: var(--text-xs);
}

.page-releases .rel-hero-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-releases .rel-hero-crumb li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: color-mix(in srgb, var(--color-contrast-ink) 40%, transparent);
}

.page-releases .rel-hero-crumb,
.page-releases .rel-hero-crumb a {
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
  text-decoration: none;
}

.page-releases .rel-hero-crumb a:hover {
  color: var(--color-contrast-ink);
}

.page-releases .rel-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  align-items: end;
}

.page-releases .rel-hero-anchor {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
}

.page-releases .rel-hero-num {
  font-family: var(--font-mono);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.82;
  letter-spacing: -0.04em;
  color: var(--color-contrast-accent);
}

.page-releases .rel-hero-anchor-label {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.page-releases .rel-hero-eyebrow {
  color: var(--color-contrast-accent);
}

.page-releases .rel-hero-title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.04;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  overflow-wrap: anywhere;
}

.page-releases .rel-hero-lede {
  margin: var(--space-3) 0 0;
  max-width: 56ch;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 86%, transparent);
}

.page-releases .rel-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: var(--space-4) 0 0;
  list-style: none;
  border-top: 1px solid var(--color-contrast-line);
}

.page-releases .rel-stat {
  min-width: 0;
}

.page-releases .rel-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-ink);
}

.page-releases .rel-stat-label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  line-height: 1.45;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

/* ---------- 分类刻度条 ---------- */

.page-releases .rel-filters-title,
.page-releases .rel-flow-title,
.page-releases .rel-map-title,
.page-releases .rel-next-title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-releases .rel-filters-note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-releases .rel-filter-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-releases .rel-filter-bar .filter-chip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-1);
  transition: background 180ms ease-out, color 180ms ease-out,
    transform 180ms ease-out, box-shadow 180ms ease-out;
}

.page-releases .rel-filter-bar .filter-chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-releases .rel-filter-bar .filter-chip[aria-pressed="true"] {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-releases .rel-chip-idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-releases .rel-chip-name {
  font-weight: var(--weight-heading);
}

.page-releases .rel-chip-count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-releases .rel-filter-bar .filter-chip[aria-pressed="true"] .rel-chip-idx,
.page-releases .rel-filter-bar .filter-chip[aria-pressed="true"] .rel-chip-count {
  color: var(--color-accent-ink);
}

/* ---------- 连续条目流 ---------- */

.page-releases .rel-flow {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-6);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-releases .rel-entry {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface);
  transition: background 200ms ease-out;
}

.page-releases .rel-entry:nth-child(even) {
  background: var(--color-surface-alt);
}

.page-releases .rel-entry:hover,
.page-releases .rel-entry:focus-within {
  background: var(--color-primary-soft);
}

.page-releases .rel-entry--revision::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-4);
  bottom: var(--space-4);
  width: 4px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--color-primary);
}

.page-releases .rel-entry-idx {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--color-ink-muted);
  transition: color 180ms ease-out;
}

.page-releases .rel-entry:hover .rel-entry-idx,
.page-releases .rel-entry:focus-within .rel-entry-idx {
  color: var(--color-primary);
}

.page-releases .rel-entry-body {
  min-width: 0;
}

.page-releases .rel-entry-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.page-releases .rel-entry-meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  LENGTH: 0;
  color: var(--color-ink-muted);
}

.page-releases .rel-entry-title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

.page-releases .rel-entry-summary {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  transition: color 180ms ease-out;
}

.page-releases .rel-entry:hover .rel-entry-summary,
.page-releases .rel-entry:focus-within .rel-entry-summary {
  color: var(--color-ink);
}

.page-releases .rel-entry-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.page-releases .rel-entry-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-releases .rel-entry-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
}

.page-releases .rel-entry-link {
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  text-decoration: none;
  transition: color 160ms ease-out;
}

.page-releases .rel-entry-link::after {
  content: " →";
}

.page-releases .rel-entry-link:hover {
  color: var(--color-accent);
}

/* ---------- 图片与说明区块 ---------- */

.page-releases .rel-figure {
  margin: 0;
}

.page-releases .rel-figure .media-frame {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}

.page-releases .rel-figure--wide .media-frame {
  border-radius: var(--radius-lg);
}

.page-releases .rel-figure-cap {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-releases .rel-map-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.page-releases .rel-map-copy {
  min-width: 0;
}

.page-releases .rel-map-disclosure {
  margin-top: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
  padding: var(--space-3) var(--space-4);
}

.page-releases .rel-map-figure {
  margin: 0;
}

.page-releases .rel-map-figure .media-frame {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}

/* ---------- 后续入口 ---------- */

.page-releases .rel-next-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-releases .rel-next-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) 78%, transparent);
  transition: transform 180ms ease-out, box-shadow 180ms ease-out;
}

.page-releases .rel-next-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-1);
}

.page-releases .rel-next-idx {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: 1.1;
  color: var(--color-primary);
}

.page-releases .rel-next-link {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  text-decoration: none;
}

.page-releases .rel-next-link:hover {
  color: var(--color-accent);
}

.page-releases .rel-next-desc {
  grid-column: 2;
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-next-note {
  margin: var(--space-4) 0 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-muted);
}

/* ---------- 焦点反馈 ---------- */

.page-releases a:focus-visible,
.page-releases button:focus-visible,
.page-releases summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-releases .rel-filter-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-releases .rel-notes .rel-figure--wide .media-frame {
    border-radius: var(--radius-lg);
  }
}

@media (min-width: 760px) {
  .page-releases .rel-entry {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: var(--space-4);
    padding: var(--space-6) var(--space-4);
  }

  .page-releases .rel-entry-idx {
    font-size: var(--text-3xl);
  }
}

@media (min-width: 880px) {
  .page-releases .rel-hero-grid {
    grid-template-columns: minmax(140px, 0.24fr) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-releases .rel-hero-inner {
    padding-top: var(--space-8);
    padding-bottom: var(--section-y);
  }

  .page-releases .rel-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-8);
  }

  .page-releases .rel-filter-bar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-releases .rel-map-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: var(--space-8);
  }

  .page-releases .rel-next-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
  }
}

@media (min-width: 1060px) {
  .page-releases .rel-filter-bar {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}