.page-news {
  --news-read: 62ch;
  --news-line-h: 2px;
  --news-chip-cut: 10px;
}

/* ---------- 首屏 ---------- */
.page-news .news-intro {
  padding-block: clamp(2.25rem, 5vw, 4rem) clamp(2.5rem, 5vw, 4.5rem);
}

.page-news .news-intro__grid {
  align-items: start;
  gap: clamp(2rem, 4vw, 3.25rem);
}

.page-news .news-intro__title {
  margin: 0.75rem 0 0;
  font-weight: 900;
  font-stretch: condensed;
  line-height: 1.03;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.page-news .news-intro__lede {
  margin-top: 1.5rem;
  max-width: 52ch;
}

.page-news .news-intro__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem 2.75rem;
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line);
}

.page-news .news-intro__stats li {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-news .news-intro__num {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-news .news-intro__label {
  font-size: 0.8125rem;
  color: var(--gray);
}

.page-news .news-intro__figure {
  margin: 0;
  position: relative;
}

.page-news .news-intro__figure .media__inner {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-news .news-intro__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .news-intro__figure .media__cap {
  display: block;
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--gray);
}

/* ---------- 标签索引 ---------- */
.page-news .news-tags__grid {
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.page-news .news-tags__lede {
  margin-top: 0;
  max-width: 46ch;
}

.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.75rem;
}

.page-news .news-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 2.75rem;
  padding: 0.5rem 1.05rem;
  border: 1px solid var(--line);
  background: var(--ink);
  color: var(--silver);
  font-size: 0.875rem;
  line-height: 1.2;
  cursor: pointer;
  user-select: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--news-chip-cut)), calc(100% - var(--news-chip-cut)) 100%, 0 100%);
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-news .news-chip__mark {
  flex: none;
  width: 9px;
  height: 9px;
  background: var(--cyan);
}

.page-news .news-chip--delivery .news-chip__mark {
  background: var(--orange);
}

.page-news .news-chip__count {
  font-size: 0.75rem;
  color: var(--gray);
  transition: color 0.22s var(--ease);
}

.page-news .news-chip:hover {
  border-color: var(--cyan);
  color: var(--mist);
}

.page-news .news-filters__state:checked + .news-chip {
  background: var(--cyan-deep);
  border-color: var(--cyan);
  color: var(--mist);
}

.page-news .news-filters__state:checked + .news-chip .news-chip__count {
  color: var(--cyan);
}

.page-news .news-filters__state:focus-visible + .news-chip {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* 纯 CSS 筛选：未选中任何标签时全部可见 */
.page-news:has(.news-filters__state:checked) .news-entry {
  display: none;
}

.page-news:has(#nf-delivery:checked) .news-entry--delivery,
.page-news:has(#nf-version:checked) .news-entry--version,
.page-news:has(#nf-spec:checked) .news-entry--spec,
.page-news:has(#nf-site:checked) .news-entry--site {
  display: block;
}

/* ---------- 条目列表 ---------- */
.page-news .news-entries__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem 2rem;
}

.page-news .news-entries__note {
  margin: 0 0 0.35rem;
  font-size: 0.8125rem;
}

.page-news .news-list {
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

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

.page-news .news-entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--news-line-h);
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.42s var(--ease);
}

.page-news .news-entry--delivery::before {
  background: var(--orange);
}

.page-news .news-entry:hover::before,
.page-news .news-entry:has(details[open])::before {
  transform: scaleY(1);
}

.page-news .news-entry details > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.85rem;
  padding: 1.15rem 1.25rem 1.15rem 1.4rem;
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-entry summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .news-entry__no {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-news .news-entry__tag {
  display: inline-block;
  padding: 0.12rem 0.55rem;
  border: 1px solid var(--line);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--cyan);
}

.page-news .news-entry--delivery .news-entry__tag {
  color: var(--orange);
}

.page-news .news-entry__time {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--gray);
}

.page-news .news-entry__title {
  flex: 1 1 100%;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--mist);
  transition: color 0.22s var(--ease);
}

.page-news .news-entry details > summary:hover .news-entry__title {
  color: var(--cyan);
}

.page-news .news-entry--delivery details > summary:hover .news-entry__title {
  color: var(--orange-soft);
}

.page-news .news-entry__body {
  padding: 0 1.25rem 1.6rem 1.4rem;
  max-width: var(--news-read);
}

.page-news .news-entry__body p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--silver);
}

.page-news .news-entry__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 专题条带 ---------- */
.page-news .news-series-wrap__lede {
  margin-top: 1.25rem;
  max-width: 56ch;
}

.page-news .news-rail {
  margin-top: 2.5rem;
  overflow-x: auto;
  overflow-y: hidden;
  padding-inline: var(--gut);
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-news .news-rail:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-news .news-rail__track {
  display: flex;
  gap: 1.25rem;
  width: max-content;
  max-width: none;
  list-style: none;
  margin: 0;
  padding: 0 0 1.5rem;
}

.page-news .news-series {
  flex: 0 0 min(80vw, 360px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  background: var(--ink);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-news .news-series__media {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-series__media .media__inner {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-news .news-series__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.9);
  transition: filter 0.3s var(--ease), transform 0.5s var(--ease);
}

.page-news .news-series:hover .news-series__media img {
  filter: saturate(1.1);
  transform: scale(1.03);
}

.page-news .news-series__body {
  padding: 1.25rem 1.25rem 1.75rem;
}

.page-news .news-series__meta {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-news .news-series__title {
  margin: 0.6rem 0 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--mist);
}

.page-news .news-series__text {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence__grid {
  gap: clamp(1.75rem, 4vw, 3.5rem);
  align-items: start;
}

.page-news .news-cadence__title {
  margin-top: 0.75rem;
}

.page-news .news-cadence__body p {
  margin: 0 0 1.1rem;
  max-width: 60ch;
  line-height: 1.85;
}

.page-news .news-cadence__body a {
  color: var(--cyan-deep);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news .news-cadence__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-news .news-cadence__mail {
  margin: 1.5rem 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--gray);
}

/* ---------- 响应式 ---------- */
@media (max-width: 999px) {
  .page-news .news-intro__figure {
    order: -1;
  }

  .page-news .news-intro__figure .media__inner {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 640px) {
  .page-news .news-intro__num {
    font-size: 1.5rem;
  }

  .page-news .news-intro__stats {
    gap: 1rem 1.75rem;
  }

  .page-news .news-entry details > summary {
    padding: 1rem 0.9rem 1rem 1.15rem;
    gap: 0.3rem 0.6rem;
  }

  .page-news .news-entry__title {
    font-size: 1rem;
  }

  .page-news .news-entry__body {
    padding: 0 0.9rem 1.4rem 1.15rem;
  }

  .page-news .news-series {
    flex-basis: min(84vw, 320px);
  }

  .page-news .news-rail {
    padding-inline: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-entry::before,
  .page-news .news-series__media img,
  .page-news .news-chip {
    transition: none;
  }

  .page-news .news-series:hover .news-series__media img {
    transform: none;
  }
}