.page-releases {
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-releases .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: var(--space-3) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-releases .breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 140ms ease-out;
}

.page-releases .breadcrumb a:hover {
  border-bottom-color: currentColor;
}

.page-releases .breadcrumb span[aria-current="page"] {
  color: var(--color-ink-soft);
}

/* ---------- 首屏 ---------- */
.page-releases .rel-hero {
  padding: var(--space-4) 0 var(--space-6);
}

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

.page-releases .rel-hero__copy .section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
}

.page-releases .display-title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  max-width: 22ch;
}

.page-releases .rel-hero__copy .lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-hero__anchor {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-accent);
}

.page-releases .rel-year {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.page-releases .rel-year-note {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

/* ---------- 年份刻度 ---------- */
.page-releases .rel-scale {
  margin-top: var(--space-6);
  padding-bottom: var(--space-2);
  overflow-x: auto;
  overflow-y: hidden;
}

.page-releases .rel-scale__svg {
  display: block;
  width: 100%;
  min-width: 680px;
  height: auto;
}

.page-releases .rel-scale__codes text {
  text-anchor: middle;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  fill: var(--color-ink-muted);
  letter-spacing: -0.02em;
}

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

/* ---------- 关键数字 ---------- */
.page-releases .rel-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.page-releases .rel-stat dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-releases .rel-stat dd {
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* ---------- 分组 ---------- */
.page-releases .rel-group {
  padding-top: var(--space-8);
}

.page-releases .rel-group__label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0 0 var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-body);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  text-align: center;
}

.page-releases .rel-group__label::before,
.page-releases .rel-group__label::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--color-line);
}

/* ---------- 图片 ---------- */
.page-releases .rel-figure {
  margin: 0 0 var(--space-6);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-surface-alt);
}

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

.page-releases .rel-figure--tint img {
  filter: saturate(0.42) contrast(1.06) sepia(0.2);
  transition: filter 180ms ease-out;
}

.page-releases .rel-figure--tint:hover img {
  filter: saturate(0.62) contrast(1.04) sepia(0.1);
}

.page-releases .rel-figure figcaption {
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
  background: var(--color-surface-alt);
}

/* ---------- 时间线条目 ---------- */
.page-releases .tl {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-releases .tl-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-line);
  scroll-margin-top: var(--space-8);
}

.page-releases .tl-item:last-child {
  border-bottom: 1px solid var(--color-line);
}

.page-releases .tl-marker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--color-surface-deep);
  border-radius: var(--radius-sm);
  align-self: start;
}

.page-releases .tl-code {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.page-releases .tl-span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
}

.page-releases .tl-content {
  max-width: var(--measure);
}

.page-releases .tl-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.3;
  color: var(--color-ink);
}

.page-releases .tl-body {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .tl-outcomes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-releases .tl-outcomes li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-releases .tl-outcomes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 3px;
  background: var(--color-primary);
}

/* ---------- 阶段对照 ---------- */
.page-releases .rel-guide {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.page-releases .rel-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-releases .rel-guide__intro .section-label {
  display: block;
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
}

.page-releases .rel-guide__intro .section-title {
  margin: 0 0 var(--space-3);
  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-guide__intro .prose {
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-guide__intro .prose p {
  margin: 0 0 var(--space-3);
}

.page-releases .rel-guide__intro .prose p:last-child {
  margin-bottom: 0;
}

.page-releases .rel-steps {
  list-style: none;
  margin: 0 0 var(--space-4);
  padding: 0;
  display: grid;
  gap: var(--space-1);
}

.page-releases .rel-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background-color 140ms ease-out;
}

.page-releases .rel-steps li:hover {
  background: var(--color-primary-soft);
}

.page-releases .rel-step-code {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  padding-top: 2px;
}

.page-releases .rel-steps p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-releases .callout-note {
  margin: 0;
  padding: var(--space-3);
  background: var(--color-highlight);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-releases .rel-more {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
  max-width: var(--measure);
}

.page-releases .rel-more p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-ink-soft);
}

.page-releases .rel-more a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-primary-soft);
  transition: border-color 140ms ease-out;
}

.page-releases .rel-more a:hover {
  border-bottom-color: var(--color-primary);
}

/* ---------- 平板起 ---------- */
@media (min-width: 720px) {
  .page-releases .rel-stats {
    gap: var(--space-4);
  }

  .page-releases .tl-item {
    grid-template-columns: 176px minmax(0, 1fr);
    gap: var(--space-6);
    padding: var(--space-6) 0;
  }

  .page-releases .tl-marker {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-2);
  }

  .page-releases .rel-guide__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-8);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-releases .rel-hero {
    padding: var(--space-6) 0 var(--space-8);
  }

  .page-releases .rel-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.6fr);
    gap: var(--space-8);
  }

  .page-releases .rel-hero__anchor {
    align-items: flex-end;
    text-align: right;
    padding-left: 0;
    padding-right: var(--space-2);
    border-left: 0;
    border-right: 3px solid var(--color-accent);
  }

  .page-releases .tl-item {
    grid-template-columns: 208px minmax(0, 1fr);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-releases .breadcrumb a,
  .page-releases .rel-figure--tint img,
  .page-releases .rel-steps li,
  .page-releases .rel-more a {
    transition: none;
  }
}
<<<END>>>