.page-releases {
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

/* ---------- 首屏 ---------- */
.page-releases .rl-hero {
  position: relative;
  padding: var(--space-6) 0 var(--space-8);
  background-image:
    radial-gradient(118% 96% at 88% -12%, color-mix(in srgb, var(--color-primary) 20%, transparent) 0%, transparent 58%),
    linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-surface) 100%);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-hero__grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-4);
}

.page-releases .rl-hero__title {
  margin: var(--space-3) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  overflow-wrap: break-word;
}

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

.page-releases .rl-figs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-releases .rl-fig {
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-fig__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}

.page-releases .rl-fig--current .rl-fig__value {
  color: var(--color-accent);
}

.page-releases .rl-fig__label {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-ink-muted);
}

.page-releases .rl-hero__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 30%, transparent);
  border-radius: var(--radius-lg);
  background-color: color-mix(in srgb, var(--color-surface-deep) 42%, transparent);
}

.page-releases .rl-axis {
  width: 100%;
  max-width: 240px;
  height: auto;
  display: block;
}

.page-releases .rl-axis__current {
  filter: drop-shadow(0 0 10px var(--color-accent));
}

.page-releases .rl-hero__caption {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  text-align: center;
}

/* ---------- 图片带 ---------- */
.page-releases .rl-band {
  padding: var(--space-8) 0 0;
}

.page-releases .rl-band .media-frame__overlay {
  color: var(--color-contrast-ink);
}

.page-releases .rl-band__tag {
  display: inline-block;
  padding: 2px var(--space-2);
  border: var(--border-thin) solid var(--color-contrast-accent);
  border-radius: var(--radius-pill);
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

.page-releases .rl-band__text {
  margin: var(--space-2) 0 0;
  max-width: 56ch;
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-contrast-ink);
}

/* ---------- 编号体系 ---------- */
.page-releases .rl-scheme {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-releases .rl-codes {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-releases .rl-code {
  padding: var(--space-4) 0;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-code:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-code__term {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  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 .rl-code__key {
  display: inline-block;
  min-width: 3.2em;
  font-size: var(--text-lg);
  color: var(--color-primary);
}

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

.page-releases .rl-scheme__fig {
  margin: 0;
}

.page-releases .rl-scheme__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06) hue-rotate(-12deg);
}

.page-releases .rl-scheme__fig figcaption {
  margin-top: var(--space-2);
  max-width: 52ch;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-muted);
}

/* ---------- 版本线主体 ---------- */
.page-releases .rl-lines {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-releases .rl-rail {
  padding-top: var(--space-2);
}

.page-releases .rl-rail__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-releases .rl-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-releases .rl-rail__item {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-rail__item:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-rail__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-3);
  border-left: 2px solid transparent;
  text-decoration: none;
  color: var(--color-ink-soft);
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-releases .rl-rail__link:hover,
.page-releases .rl-rail__link:focus-visible {
  color: var(--color-ink);
  border-left-color: var(--color-primary);
  background-color: color-mix(in srgb, var(--color-primary) 10%, transparent);
  outline: none;
}

.page-releases .rl-rail__link:focus-visible {
  box-shadow: 0 0 0 2px var(--color-focus);
}

.page-releases .rl-rail__link[aria-current="true"] {
  color: var(--color-ink);
  border-left-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.page-releases .rl-rail__num {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-releases .rl-rail__name {
  font-size: var(--text-base);
}

.page-releases .rl-rail__ver {
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-releases .rl-line + .rl-line {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px dashed var(--color-line);
}

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

.page-releases .rl-line__num {
  margin: 0;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.page-releases .rl-line__title {
  margin: var(--space-1) 0 0;
  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 .rl-line__meta {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-muted);
}

/* ---------- 节点 ---------- */
.page-releases .rl-nodes {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-releases .rl-node {
  position: relative;
  padding-left: var(--space-6);
  padding-bottom: var(--space-6);
}

.page-releases .rl-node:last-child {
  padding-bottom: 0;
}

.page-releases .rl-node::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 18px;
  bottom: 0;
  width: 1px;
  background-image: linear-gradient(180deg, var(--color-line) 0, var(--color-line) 4px, transparent 4px, transparent 9px);
  background-size: 1px 9px;
  background-repeat: repeat-y;
}

.page-releases .rl-node:last-child::before {
  display: none;
}

.page-releases .rl-node__dot {
  position: absolute;
  left: 0;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: var(--border-thin) solid var(--color-primary);
  background-color: var(--color-surface);
}

.page-releases .rl-node--current .rl-node__dot {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-accent) 20%, transparent);
}

.page-releases .rl-node__body {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: color-mix(in srgb, var(--color-surface-deep) 46%, transparent);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.page-releases .rl-node:hover .rl-node__body,
.page-releases .rl-node:focus-within .rl-node__body {
  border-color: color-mix(in srgb, var(--color-primary) 68%, transparent);
  box-shadow: 0 0 22px color-mix(in srgb, var(--color-primary) 26%, transparent);
  transform: translateY(-2px);
}

.page-releases .rl-node--current .rl-node__body {
  border-color: color-mix(in srgb, var(--color-accent) 52%, transparent);
  background-color: color-mix(in srgb, var(--color-surface-deep) 72%, transparent);
  box-shadow: 0 0 26px color-mix(in srgb, var(--color-accent) 20%, transparent);
}

.page-releases .rl-node--current:hover .rl-node__body,
.page-releases .rl-node--current:focus-within .rl-node__body {
  border-color: color-mix(in srgb, var(--color-accent) 78%, transparent);
  box-shadow: 0 0 30px color-mix(in srgb, var(--color-accent) 30%, transparent);
}

.page-releases .rl-node__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.page-releases .rl-node__ver {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--color-ink);
}

.page-releases .rl-node--current .rl-node__ver {
  color: var(--color-accent);
}

.page-releases .rl-node__name {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-releases .rl-node__desc {
  margin: var(--space-2) 0 0;
  max-width: var(--measure);
  color: var(--color-ink-soft);
  font-size: var(--text-base);
  line-height: 1.65;
}

.page-releases .rl-node__facts {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-3) 0 0;
}

.page-releases .rl-node__fact dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-releases .rl-node__fact dd {
  margin: var(--space-1) 0 0;
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-releases .rl-node__extra {
  max-height: 0;
  margin: 0;
  padding-top: 0;
  overflow: hidden;
  opacity: 0;
  border-top: 1px dashed transparent;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
  transition: max-height 300ms ease, opacity 220ms ease, padding-top 300ms ease, margin-top 300ms ease;
}

.page-releases .rl-node:hover .rl-node__extra,
.page-releases .rl-node:focus-within .rl-node__extra {
  max-height: 14rem;
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  opacity: 1;
  border-top-color: var(--color-line);
}

@media (hover: none) {
  .page-releases .rl-node__extra {
    max-height: none;
    margin-top: var(--space-3);
    padding-top: var(--space-2);
    opacity: 1;
    border-top-color: var(--color-line);
  }
}

/* ---------- 当前版本摘要 ---------- */
.page-releases .rl-summary {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding: var(--space-4);
}

.page-releases .rl-summary__ver {
  display: block;
  margin: var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.page-releases .rl-summary__name {
  margin: var(--space-2) 0 0;
  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 .rl-summary__facts {
  display: grid;
  gap: var(--space-3);
  margin: 0;
}

.page-releases .rl-summary__fact {
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-summary__fact dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.page-releases .rl-summary__fact dd {
  margin: var(--space-1) 0 0;
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-ink);
}

.page-releases .rl-summary__foot {
  margin: 0;
}

/* ---------- 版本与卷的对应 ---------- */
.page-releases .rl-map {
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-map__row {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-map__ver {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
}

.page-releases .rl-map__set,
.page-releases .rl-map__vol {
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-ink-soft);
}

.page-releases .rl-map__state {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-releases .rl-map__fig {
  margin: var(--space-6) 0 0;
}

.page-releases .rl-map__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-line);
  object-fit: cover;
  filter: saturate(0.68) contrast(1.08) hue-rotate(-14deg);
}

.page-releases .rl-map__fig figcaption {
  margin-top: var(--space-2);
  max-width: 58ch;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

/* ---------- 返回路径 ---------- */
.page-releases .rl-return__list {
  display: grid;
  gap: 0;
  margin: var(--space-6) 0 0;
  padding: 0;
  list-style: none;
}

.page-releases .rl-return__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  text-decoration: none;
  color: var(--color-ink);
  transition: background-color 160ms ease, border-color 160ms ease;
}

.page-releases .rl-return__item:last-child .rl-return__link {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-releases .rl-return__link:hover,
.page-releases .rl-return__link:focus-visible {
  background-color: color-mix(in srgb, var(--color-primary) 10%, transparent);
  border-top-color: var(--color-primary);
  outline: none;
}

.page-releases .rl-return__link:focus-visible {
  box-shadow: inset 0 0 0 2px var(--color-focus);
}

.page-releases .rl-return__num {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-primary);
}

.page-releases .rl-return__body {
  display: block;
}

.page-releases .rl-return__name {
  display: block;
  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 .rl-return__desc {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-releases .rl-node__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-releases .rl-summary__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-releases .rl-return__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-releases .rl-return__item:nth-child(odd) .rl-return__link {
    padding-right: var(--space-4);
  }

  .page-releases .rl-return__item:nth-child(even) .rl-return__link {
    padding-left: var(--space-4);
  }

  .page-releases .rl-return__item:last-child .rl-return__link {
    border-bottom: var(--border-thin) solid var(--color-line);
  }
}

@media (min-width: 760px) {
  .page-releases .rl-map__row {
    grid-template-columns: 5.5rem minmax(0, 0.9fr) minmax(0, 1.6fr) auto;
    align-items: baseline;
    gap: var(--space-3);
    padding: var(--space-3) 0;
  }

  .page-releases .rl-map__state {
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-releases .rl-hero {
    padding: var(--space-6) 0 var(--section-y);
  }

  .page-releases .rl-hero__grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.78fr);
    gap: var(--space-8);
    align-items: end;
    margin-top: var(--space-6);
  }

  .page-releases .rl-hero__visual {
    padding: var(--space-4);
  }

  .page-releases .rl-scheme {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-releases .rl-scheme__fig {
    position: sticky;
    top: var(--space-8);
  }

  .page-releases .rl-lines {
    grid-template-columns: 13.5rem minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-releases .rl-rail {
    position: sticky;
    top: var(--space-8);
    padding-top: 0;
  }

  .page-releases .rl-summary {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.5fr);
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-6);
  }

  .page-releases .rl-summary__foot {
    grid-column: 1 / -1;
  }

  .page-releases .rl-node {
    padding-left: var(--space-8);
  }
}

@media (min-width: 1080px) {
  .page-releases .rl-figs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-releases .rl-node__body,
  .page-releases .rl-node__extra,
  .page-releases .rl-rail__link,
  .page-releases .rl-return__link {
    transition: none;
  }

  .page-releases .rl-node:hover .rl-node__body,
  .page-releases .rl-node:focus-within .rl-node__body {
    transform: none;
  }
}
<<<END>>>