.page-releases {
  --rel-rail-top: 6px;
  --rel-dot: 14px;
  --rel-dot-small: 10px;
  --rel-aside: 168px;
}

.page-releases .breadcrumb {
  margin-bottom: var(--space-6);
}

/* ---------- 首屏 ---------- */
.page-releases .rel-hero {
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
}

.page-releases .rel-hero__head {
  max-width: 1000px;
}

.page-releases .rel-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-3) 0 var(--space-4);
}

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

/* ---------- 阶段轴 ---------- */
.page-releases .rel-axis {
  margin-top: var(--space-8);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  padding-bottom: var(--space-2);
  scrollbar-width: thin;
  scrollbar-color: var(--color-line) transparent;
}

.page-releases .rel-axis__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(190px, 1fr));
  gap: var(--space-6);
  min-width: 680px;
}

.page-releases .rel-axis__list::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: var(--rel-rail-top);
  border-top: 1px dashed var(--color-line);
}

.page-releases .rel-axis__item {
  padding-top: var(--space-4);
}

.page-releases .rel-axis__link {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  text-decoration: none;
  color: inherit;
  position: relative;
  padding-top: calc(var(--rel-dot) + var(--space-2));
}

.page-releases .rel-axis__dot {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--rel-dot);
  height: var(--rel-dot);
  border-radius: 50%;
  box-sizing: border-box;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
}

.page-releases .rel-axis__dot--live {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.page-releases .rel-axis__stage {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  letter-spacing: var(--tracking-heading);
}

.page-releases .rel-axis__scale {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-releases .rel-axis__link:hover .rel-axis__stage,
.page-releases .rel-axis__link:focus-visible .rel-axis__stage {
  color: var(--color-accent);
}

.page-releases .rel-axis__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

/* ---------- 关键数字 ---------- */
.page-releases .rel-figures {
  margin: var(--space-8) 0 0;
  padding-top: var(--space-6);
  border-top: 1px dashed var(--color-line);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-releases .rel-figures__item dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-1);
}

.page-releases .rel-figures__item dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
  color: var(--color-ink);
  font-family: var(--font-mono);
}

.page-releases .rel-figures__unit {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 阶段区块 ---------- */
.page-releases .rel-stage {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.page-releases .rel-stage__head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px dashed var(--color-line);
}

.page-releases .rel-stage__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.page-releases .rel-stage__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

/* ---------- 节点列表 ---------- */
.page-releases .rel-nodes {
  display: grid;
  gap: var(--space-6);
}

.page-releases .rel-node {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding-bottom: var(--space-6);
  border-bottom: 1px dotted var(--color-line);
}

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

.page-releases .rel-node__side {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.page-releases .rel-node__dot {
  width: var(--rel-dot-small);
  height: var(--rel-dot-small);
  border-radius: 50%;
  box-sizing: border-box;
  flex: none;
}

.page-releases .rel-node__dot--hollow {
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
}

.page-releases .rel-node__dot--solid {
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
}

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

.page-releases .rel-node__main h3 {
  margin: 0 0 var(--space-2);
  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-node__main p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-releases .rel-node__main a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-accent);
  padding-bottom: 1px;
}

.page-releases .rel-node__main a:hover,
.page-releases .rel-node__main a:focus-visible {
  color: var(--color-focus);
  border-bottom-style: solid;
}

/* ---------- 图片 ---------- */
.page-releases .rel-media {
  margin: 0;
}

.page-releases .rel-media .media__frame {
  background: var(--color-primary-soft);
  overflow: hidden;
}

.page-releases .rel-media .media__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(0.96);
  mix-blend-mode: multiply;
}

.page-releases .rel-media--stack .media__frame {
  background: var(--color-surface-deep);
}

.page-releases .rel-media .media__caption {
  margin-top: var(--space-2);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* ---------- 当前阶段收束句 ---------- */
.page-releases .rel-pull {
  margin: var(--space-8) 0 0;
  padding-top: var(--space-4);
  border-top: 1px dashed var(--color-line);
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-releases .rel-pull a {
  color: var(--color-accent);
  text-decoration: none;
}

.page-releases .underline-accent {
  border-bottom: 3px solid var(--color-accent);
  padding-bottom: 2px;
}

/* ---------- 观察中的方向 ---------- */
.page-releases .rel-watchlist {
  display: grid;
  gap: 0;
}

.page-releases .rel-watch {
  border-bottom: 1px dotted var(--color-line);
}

.page-releases .rel-watch:first-child {
  border-top: 1px dotted var(--color-line);
}

.page-releases .rel-watch__summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) 0;
}

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

.page-releases .rel-watch__summary:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}

.page-releases .rel-watch__dot {
  width: var(--rel-dot-small);
  height: var(--rel-dot-small);
  border-radius: 50%;
  background: var(--color-accent);
  flex: none;
}

.page-releases .rel-watch__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  line-height: var(--leading-heading);
}

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

.page-releases .rel-watch[open] .rel-watch__name {
  color: var(--color-accent);
}

.page-releases .rel-watch__body {
  margin: 0;
  padding: 0 0 var(--space-6);
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 观察中脉冲 ---------- */
@keyframes rel-pulse {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-accent) 42%, transparent); }
  60% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--color-accent) 0%, transparent); }
}

.page-releases [data-pulse] {
  animation: rel-pulse 2.4s ease-out infinite;
}

/* ---------- 收束面板 ---------- */
.page-releases .rel-outro {
  padding-top: var(--space-6);
  padding-bottom: var(--section-y);
}

.page-releases .rel-outro__panel {
  padding: var(--space-6);
}

.page-releases .rel-outro__eyebrow {
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-releases .rel-outro__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

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

.page-releases .rel-outro__text a {
  color: var(--color-contrast-accent);
  text-decoration: none;
  border-bottom: 1px dashed color-mix(in srgb, var(--color-contrast-accent) 60%, transparent);
}

.page-releases .rel-outro__actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
}

.page-releases .rel-outro__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-contrast-accent);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--color-contrast-line);
}

.page-releases .rel-outro__link:hover,
.page-releases .rel-outro__link:focus-visible {
  border-bottom-color: var(--color-contrast-accent);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-releases .rel-axis__list {
    min-width: 0;
  }

  .page-releases .rel-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-6);
  }

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

  .page-releases .rel-node__side {
    padding-top: 6px;
  }

  .page-releases .rel-node__main h3 {
    font-size: var(--text-xl);
  }

  .page-releases .rel-outro__panel {
    padding: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .page-releases .rel-hero {
    padding-top: var(--space-8);
  }

  .page-releases .rel-axis {
    overflow-x: visible;
  }

  .page-releases .rel-node {
    grid-template-columns: var(--rel-aside) 1fr;
  }

  .page-releases .rel-media--stack {
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-releases [data-pulse] {
    animation: none;
  }
}