.page-releases {
  --rel-dot: 12px;
  --rel-axis-gap: var(--space-2);
  --rel-indent: calc(var(--space-6) + var(--space-1));
}

@media (min-width: 768px) {
  .page-releases {
    --rel-indent: calc(var(--space-8) + var(--space-2));
  }
}

/* ---------- 首屏 ---------- */

.page-releases .rel-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-releases .rel-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-releases .rel-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-releases .rel-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-releases .rel-hero__grid {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.45;
  background-image:
    repeating-linear-gradient(to right, color-mix(in srgb, var(--color-contrast-line) 70%, transparent) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to bottom, color-mix(in srgb, var(--color-contrast-line) 70%, transparent) 0 1px, transparent 1px 96px);
}

.page-releases .rel-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-8);
}

@media (min-width: 960px) {
  .page-releases .rel-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: end;
    gap: var(--space-8);
    padding-block: var(--section-y-lg);
  }
}

.page-releases .rel-hero .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);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-releases .rel-hero__num {
  display: inline-block;
  margin-right: 0.1em;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-accent);
}

.page-releases .rel-hero__lede {
  max-width: var(--measure);
  margin: var(--space-3) 0 0;
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-releases .rel-hero__axis {
  position: relative;
  padding-left: var(--space-4);
}

.page-releases .rel-hero__axis::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
}

.page-releases .rel-hero__stats {
  display: grid;
  gap: var(--space-3);
}

.page-releases .rel-stat {
  display: grid;
  gap: 2px;
  padding-block: var(--space-1);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.page-releases .rel-stat:last-child {
  border-bottom: 0;
}

.page-releases .rel-stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-releases .rel-stat__label {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.78;
}

/* ---------- 面包屑条 ---------- */

.page-releases .rel-crumb {
  background: var(--color-surface);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rel-crumb .container {
  padding-block: var(--space-2);
}

/* ---------- 区块标题 ---------- */

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

.page-releases .section-head h2 {
  margin: var(--space-2) 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}

.page-releases .section-head .lede {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 三类变更 ---------- */

.page-releases .rel-type-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rel-type {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-2) var(--space-4) var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  border-left: 3px solid var(--color-primary);
  transition: background-color 0.18s ease;
}

.page-releases .rel-type:nth-child(2) {
  border-left-color: var(--color-accent);
}

.page-releases .rel-type:nth-child(3) {
  border-left-color: var(--color-contrast-surface);
}

.page-releases .rel-type:hover {
  background: var(--color-surface-alt);
}

@media (min-width: 900px) {
  .page-releases .rel-type {
    grid-template-columns: var(--space-6) minmax(0, 1fr) minmax(0, 20ch);
    gap: var(--space-4);
    align-items: start;
    padding-inline: var(--space-4) var(--space-2);
  }
}

.page-releases .rel-type__no {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink-muted);
}

.page-releases .rel-type__main h3 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-releases .rel-type__main p {
  margin: 0 0 var(--space-2);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-releases .rel-type__scope {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  border-left: 2px solid var(--color-line);
  padding-left: var(--space-2);
}

.page-releases .rel-type__side {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

/* ---------- 时间轴 ---------- */

.page-releases .rel-line__head {
  margin-bottom: var(--space-4);
}

.page-releases .rel-ticker {
  position: sticky;
  top: 0;
  z-index: 6;
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rel-ticker__inner {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding-block: var(--space-2);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-releases .rel-ticker__label {
  flex: 0 0 auto;
  margin-right: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
}

.page-releases .rel-ticker__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 4px var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.page-releases .rel-ticker__link:hover,
.page-releases .rel-ticker__link:focus-visible {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-releases .rel-axis {
  position: relative;
  list-style: none;
  margin: 0;
  padding: var(--space-6) 0 0;
}

.page-releases .rel-axis::before {
  content: "";
  position: absolute;
  left: var(--rel-axis-gap);
  top: 0;
  bottom: var(--space-6);
  width: var(--border-thin);
  background: var(--color-line);
}

.page-releases .rel-axis__item {
  position: relative;
  padding-left: var(--rel-indent);
}

.page-releases .rel-axis__item::before {
  content: "";
  position: absolute;
  left: var(--rel-axis-gap);
  top: calc(var(--space-4) + 4px);
  width: var(--rel-dot);
  height: var(--rel-dot);
  border-radius: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-surface-alt);
  z-index: 1;
}

.page-releases .rel-axis__item[data-change="case"]::before {
  background: var(--color-accent);
}

.page-releases .rel-axis__item[data-change="pack"]::before {
  background: var(--color-contrast-surface);
}

.page-releases .rel-node {
  border-left: 3px solid var(--color-line);
  padding: var(--space-3) var(--space-2) var(--space-3) var(--space-3);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-releases .rel-node + .rel-node {
  margin-top: var(--space-2);
}

.page-releases .rel-node:hover {
  background: var(--color-surface);
}

.page-releases .rel-node[open] {
  border-left-color: var(--color-accent);
  background: var(--color-surface);
}

.page-releases .rel-node__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
  cursor: pointer;
  list-style: none;
}

.page-releases .rel-node__head::-webkit-details-marker {
  display: none;
}

.page-releases .rel-node__head::marker {
  content: "";
}

.page-releases .rel-node__round {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink-muted);
  transition: color 0.18s ease;
}

.page-releases .rel-node:hover .rel-node__round,
.page-releases .rel-node[open] .rel-node__round {
  color: var(--color-accent);
}

.page-releases .rel-node__name {
  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-releases .rel-chiptype {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.page-releases .rel-chiptype[data-type="index"] {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-releases .rel-chiptype[data-type="case"] {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-releases .rel-chiptype[data-type="pack"] {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-releases .rel-node__stamp {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-releases .rel-node__body {
  padding-top: var(--space-2);
}

.page-releases .rel-node__body > p {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-releases .rel-node__facts {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

@media (min-width: 900px) {
  .page-releases .rel-node__facts {
    grid-template-columns: minmax(0, 1fr) minmax(0, 18ch);
    gap: var(--space-4);
    align-items: start;
  }
}

.page-releases .rel-node__fact dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  margin-bottom: 2px;
}

.page-releases .rel-node__fact dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-regions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

/* ---------- 时间轴插图 ---------- */

.page-releases .rel-axis__figure {
  padding-left: var(--rel-indent);
  margin-block: var(--space-6);
}

.page-releases .rel-shot {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

.page-releases .rel-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-releases .rel-shot--compare {
  margin-bottom: var(--space-6);
  max-width: 100%;
}

/* ---------- 两轮对照 ---------- */

.page-releases .rel-compare__caption {
  caption-side: top;
  text-align: left;
  padding-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-releases .rel-compare .data-table__key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink);
  white-space: nowrap;
}

.page-releases .rel-compare td {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-compare td .tag {
  margin-left: var(--space-1);
  vertical-align: middle;
}

/* ---------- 核对节奏 ---------- */

.page-releases .rel-flow {
  list-style: none;
  margin: 0 0 var(--space-8);
  padding: 0;
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 720px) {
  .page-releases .rel-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-releases .rel-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-3);
  }
}

.page-releases .rel-flow__step {
  padding-top: var(--space-3);
  border-top: 3px solid var(--color-primary-soft);
}

.page-releases .rel-flow__no {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.page-releases .rel-flow__step h3 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-releases .rel-flow__step p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-states-wrap {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-4);
  max-width: var(--measure);
}

.page-releases .rel-states__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-releases .rel-states {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-releases .rel-state {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rel-state__dot {
  width: var(--rel-dot);
  height: var(--rel-dot);
  border-radius: 50%;
  margin-top: 8px;
}

.page-releases .rel-state__dot--live {
  background: var(--color-primary);
}

.page-releases .rel-state__dot--checked {
  background: var(--color-accent);
}

.page-releases .rel-state__dot--archived {
  background: var(--color-ink-muted);
}

.page-releases .rel-state__name {
  margin: 0 0 2px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink);
}

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

/* ---------- 延续阅读 ---------- */

.page-releases .rel-next {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rel-next__item {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rel-next__link {
  display: grid;
  gap: 4px;
  padding: var(--space-3);
  border-left: 3px solid transparent;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.page-releases .rel-next__link:hover,
.page-releases .rel-next__link:focus-visible {
  background: var(--color-primary-soft);
  border-left-color: var(--color-primary);
}

.page-releases .rel-next__title {
  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-releases .rel-next__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

@media (min-width: 800px) {
  .page-releases .rel-next {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: var(--space-8);
  }
}

/* ---------- 焦点与减动效 ---------- */

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

@media (prefers-reduced-motion: reduce) {
  .page-releases *,
  .page-releases *::before,
  .page-releases *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media (max-width: 599px) {
  .page-releases .rel-hero__stats {
    gap: var(--space-2);
  }

  .page-releases .rel-stat__value {
    font-size: var(--text-2xl);
  }

  .page-releases .rel-node__stamp {
    margin-left: 0;
    flex-basis: 100%;
  }
}
<<<END>>>