.page-news {
  --news-rail-w: 300px;
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-news .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3vw, 30px) 0 clamp(24px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-news .news-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 7.4vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.page-news .news-hero__sub {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(13px, 2vw, 15px);
  color: var(--mint-deep);
  letter-spacing: 0.02em;
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.page-news .news-hero__stats li {
  padding: 14px 10px 0 0;
  border-right: 1px solid var(--line);
  min-width: 0;
}

.page-news .news-hero__stats li:last-child {
  border-right: 0;
  padding-right: 0;
  padding-left: 12px;
}

.page-news .news-hero__stats li:nth-child(2) {
  padding-left: 12px;
}

.page-news .hstat__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 3.4vw, 30px);
  line-height: 1.1;
  color: var(--mint);
}

.page-news .hstat__num--ember {
  color: var(--ember);
}

.page-news .hstat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 主体分栏 ---------- */
.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(26px, 4vw, 44px);
  align-items: start;
}

/* ---------- 左侧时间轴 ---------- */
.page-news .news-rail {
  position: relative;
  overflow: hidden;
  padding: 18px 16px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-news .rail-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.13;
  filter: saturate(0.4);
  pointer-events: none;
}

.page-news .rail-head,
.page-news .timeline {
  position: relative;
  z-index: 1;
}

.page-news .rail-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-news .rail-head .panel__label {
  margin: 0;
  color: var(--mint);
}

.page-news .rail-head__count {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  white-space: nowrap;
}

.page-news .rail-head__count .mono {
  font-family: var(--font-mono);
  color: var(--paper);
}

.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--line);
}

.page-news .timeline__item {
  margin: 0;
  padding-left: 24px;
}

.page-news .tl__summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 9px 0 6px;
  cursor: pointer;
  list-style: none;
}

.page-news .tl__summary::-webkit-details-marker {
  display: none;
}

.page-news .tl__summary::marker {
  content: "";
}

.page-news .tl__dot {
  position: absolute;
  left: -24px;
  top: 13px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--dim);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .tl__ver {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--mint);
}

.page-news .tl__name {
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .tl__body {
  margin: 2px 0 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .tl[open] .tl__dot {
  background: var(--mint);
  border-color: var(--mint);
}

.page-news .tl--major .tl__ver,
.page-news .tl--major .tl__name {
  color: var(--ember);
}

.page-news .tl--major .tl__dot {
  border-color: var(--ember);
}

.page-news .tl--major[open] .tl__dot {
  background: var(--ember);
  border-color: var(--ember);
}

/* ---------- 章节 ---------- */
.page-news .nsec {
  margin-top: clamp(34px, 5vw, 56px);
  padding-top: clamp(24px, 3.4vw, 36px);
  border-top: 1px solid var(--line);
}

.page-news .news-detail > .nsec:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-news .nsec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-news .nsec__num {
  flex: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1;
  color: var(--dim);
}

.page-news .nsec--hot .nsec__num {
  color: var(--ember);
}

.page-news .nsec__kicker {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mint-deep);
}

.page-news .nsec--hot .nsec__kicker {
  color: var(--ember);
}

.page-news .nsec__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.6vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-news .nsec__lede {
  margin: 0 0 18px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .prose {
  max-width: 36em;
}

.page-news .prose p {
  margin: 0 0 1.05em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--paper);
}

/* ---------- 归并摘要 ---------- */
.page-news .merge-list {
  list-style: none;
  margin: 20px 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .merge-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .merge-list__num {
  flex: none;
  width: 3.2em;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(20px, 3.2vw, 26px);
  line-height: 1;
  color: var(--mint);
}

.page-news .merge-list__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 图片 ---------- */
.page-news .nfig {
  margin: 22px 0 0;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-news .nfig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.6);
}

.page-news .nfig figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .nfig--wide {
  margin-bottom: 20px;
}

/* ---------- 公告卡片流 ---------- */
.page-news .card-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-news .card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 15px 15px 13px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news .card:hover {
  transform: translateY(-2px);
  border-color: var(--mint-deep);
}

.page-news .card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .card__ver {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mint);
  border: 1px solid var(--line);
  padding: 2px 6px;
}

.page-news .card__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .card__lead {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .card__more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.page-news .card__more summary {
  cursor: pointer;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mint-deep);
}

.page-news .card__more summary::-webkit-details-marker {
  display: none;
}

.page-news .card__more[open] summary {
  color: var(--mint);
}

.page-news .card__more p {
  margin: 9px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 回溯区 ---------- */
.page-news .archive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.page-news .archive-grid .nfig {
  margin-top: 0;
}

.page-news .arc {
  border-bottom: 1px solid var(--line);
}

.page-news .arc summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
}

.page-news .arc summary::-webkit-details-marker {
  display: none;
}

.page-news .arc__idx {
  flex: none;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--dim);
}

.page-news .arc__name {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-news .arc[open] .arc__idx {
  color: var(--mint);
}

.page-news .arc__body {
  margin: 0 0 14px;
  padding-left: 30px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 专题系列 ---------- */
.page-news .series-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .series {
  padding-top: 12px;
  border-top: 2px solid var(--mint);
}

.page-news .series__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.3;
}

.page-news .series__text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .series__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mint-deep);
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-news .cadence-panel p {
  margin: 0 0 1em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper);
}

.page-news .cadence-panel p:last-child {
  margin-bottom: 0;
}

.page-news .inlink {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}

.page-news .inlink:hover,
.page-news .inlink:focus-visible {
  border-bottom-color: var(--mint);
}

.page-news .cadence-facts {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  align-content: start;
}

.page-news .cadence-facts > div {
  background: var(--bg);
  padding: 10px 12px;
}

.page-news .cadence-facts dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-news .cadence-facts dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--mint);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-news .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .cadence-panel {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    padding: 22px;
  }

  .page-news .cadence-facts {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-news .archive-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 24px;
  }
}

@media (min-width: 1000px) {
  .page-news .news-body {
    grid-template-columns: minmax(260px, var(--news-rail-w)) minmax(0, 1fr);
    gap: 40px;
  }

  .page-news .news-rail {
    position: sticky;
    top: 24px;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
  }
}

@media (min-width: 1280px) {
  .page-news .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .card,
  .page-news .tl__dot {
    transition: none;
  }

  .page-news .card:hover {
    transform: none;
  }
}