.page-news {
  --n-tl-pad: 2.25rem;
  --n-tl-line: 0.5rem;
  --n-tl-node: 6px;
  overflow-x: clip;
}

/* ============ 索引头 ============ */
.page-news .news-hero {
  position: relative;
  padding: 1.75rem 0 3.25rem;
  background:
    radial-gradient(120% 85% at 88% 0%, rgba(53, 224, 200, .13), transparent 62%),
    radial-gradient(95% 75% at 6% 8%, rgba(212, 168, 83, .13), transparent 66%),
    var(--navy);
  overflow: hidden;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -22% -12%;
  height: 46%;
  background: linear-gradient(102deg, rgba(212, 168, 83, .10), rgba(53, 224, 200, .07));
  transform: skewY(-4deg);
  pointer-events: none;
}

.page-news .news-hero .container {
  position: relative;
  z-index: 1;
}

.page-news .crumbs {
  margin-bottom: 1.5rem;
}

.page-news .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-news .crumb a {
  color: rgba(244, 241, 232, .68);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .crumb a:hover,
.page-news .crumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .crumb--current {
  color: var(--gold);
}

.page-news .crumb-sep {
  color: rgba(244, 241, 232, .3);
}

.page-news .hero-split {
  display: grid;
  gap: 2.25rem;
  align-items: center;
}

.page-news .news-hero h1 {
  font-size: clamp(1.7rem, 7.2vw, 3.4rem);
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1.16;
  margin: .7rem 0 1rem;
  color: var(--paper);
}

.page-news .news-hero .lede {
  max-width: 48ch;
  color: rgba(244, 241, 232, .82);
  line-height: 1.85;
  margin: 0 0 1.5rem;
}

.page-news .hero-figure {
  margin: 0;
}

.page-news .hero-figure .media {
  border: 1px solid var(--line-strong);
  box-shadow: 9px 11px 0 rgba(8, 21, 44, .92), 0 0 0 1px rgba(212, 168, 83, .22);
  overflow: hidden;
}

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

.page-news .hero-figure .media-cap {
  margin-top: .85rem;
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--stone);
}

/* ============ 时间轴区 ============ */
.page-news .news-board-section {
  background: var(--navy);
  padding-top: 3rem;
  padding-bottom: 3.5rem;
}

.page-news .news-board-section .section-head {
  max-width: 62ch;
  margin-bottom: 2rem;
}

.page-news .board-filters {
  display: grid;
  gap: .9rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line-strong);
  background: rgba(18, 43, 82, .55);
  margin-bottom: 2.25rem;
}

.page-news .filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
}

.page-news .filter-row-label {
  flex: 0 0 auto;
  font-size: .75rem;
  letter-spacing: .16em;
  color: var(--stone);
  padding-right: .35rem;
}

.page-news .chip-set {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-news .board-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .fl-chip {
  display: inline-block;
  font-size: .8125rem;
  letter-spacing: .1em;
  padding: .34rem .78rem;
  border: 1px solid var(--line-strong);
  color: rgba(244, 241, 232, .74);
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-news .fl-chip:hover {
  color: var(--paper);
  border-color: rgba(232, 226, 210, .5);
}

.page-news .board-input:checked + .fl-chip {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 224, 200, .09);
}

.page-news .board-input:focus-visible + .fl-chip {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .board-input:checked + .fl-chip--new {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .board-input:checked + .fl-chip--fix {
  border-color: var(--clay);
  color: #E39377;
  background: rgba(180, 105, 74, .12);
}

.page-news .board-input:checked + .fl-chip--perf {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(212, 168, 83, .1);
}

.page-news .board-input:checked + .fl-chip--adapt {
  border-color: #8FB694;
  color: #9CC7A1;
  background: rgba(79, 107, 82, .18);
}

/* 时间轴 */
.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--n-tl-pad);
  position: relative;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: var(--n-tl-line);
  top: .6rem;
  bottom: .6rem;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(212, 168, 83, .08));
}

.page-news .entry {
  position: relative;
  margin-bottom: 1.6rem;
}

.page-news .entry:last-child {
  margin-bottom: 0;
}

.page-news .entry::before {
  content: "";
  position: absolute;
  top: 1.45rem;
  left: calc(var(--n-tl-line) - var(--n-tl-node) - var(--n-tl-pad));
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--navy);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(212, 168, 83, .12);
}

.page-news .entry-body {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--edge);
  padding: 1.15rem 1.2rem 1.2rem;
  box-shadow: 5px 6px 0 rgba(8, 21, 44, .88);
}

.page-news .entry-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .6rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--edge);
}

.page-news .entry-period {
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--moss);
}

.page-news .entry-no {
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .12em;
  color: var(--stone);
}

.page-news .entry-title {
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.6;
  margin: 0 0 .6rem;
  color: var(--ink);
}

.page-news .entry-text {
  margin: 0 0 .9rem;
  color: var(--ink-soft);
  line-height: 1.8;
  font-size: .9375rem;
}

.page-news .entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .85rem;
}

.page-news .tag {
  display: inline-block;
  font-size: .75rem;
  letter-spacing: .1em;
  padding: .2rem .58rem;
  border: 1px solid currentColor;
  border-radius: 2px;
  white-space: nowrap;
}

.page-news .tag--new {
  color: var(--cyan-ink);
  background: rgba(15, 124, 111, .07);
}

.page-news .tag--fix {
  color: var(--clay);
  background: rgba(180, 105, 74, .08);
}

.page-news .tag--perf {
  color: #8A6A1F;
  background: rgba(138, 106, 31, .1);
}

.page-news .tag--adapt {
  color: var(--moss);
  background: rgba(79, 107, 82, .08);
}

.page-news .entry-more {
  border-top: 1px dashed var(--edge);
  padding-top: .7rem;
}

.page-news .entry-more summary {
  cursor: pointer;
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--stone);
  list-style: none;
}

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

.page-news .entry-more summary::before {
  content: "+";
  display: inline-block;
  width: 1.1em;
  font-family: var(--font-mono);
  color: var(--gold);
}

.page-news .entry-more[open] summary::before {
  content: "–";
}

.page-news .entry-more summary:hover,
.page-news .entry-more summary:focus-visible {
  color: var(--cyan-ink);
}

.page-news .entry-links {
  list-style: none;
  margin: .7rem 0 0;
  padding: 0;
  display: grid;
  gap: .4rem;
}

.page-news .entry-links a {
  font-size: .875rem;
  color: var(--cyan-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(15, 124, 111, .35);
}

.page-news .entry-links a:hover,
.page-news .entry-links a:focus-visible {
  border-bottom-color: var(--cyan-ink);
}

.page-news .timeline-empty {
  display: none;
  margin: 1.4rem 0 0;
  padding: 1.1rem 1.2rem;
  border: 1px dashed var(--line-strong);
  color: rgba(244, 241, 232, .72);
  font-size: .9375rem;
  line-height: 1.8;
}

/* 筛选逻辑 */
.page-news .news-board:has(#nc-version:checked) .entry:not(.entry--version) { display: none; }
.page-news .news-board:has(#nc-topic:checked) .entry:not(.entry--topic) { display: none; }
.page-news .news-board:has(#nc-service:checked) .entry:not(.entry--service) { display: none; }
.page-news .news-board:has(#nt-new:checked) .entry:not(.has-new) { display: none; }
.page-news .news-board:has(#nt-fix:checked) .entry:not(.has-fix) { display: none; }
.page-news .news-board:has(#nt-perf:checked) .entry:not(.has-perf) { display: none; }
.page-news .news-board:has(#nt-adapt:checked) .entry:not(.has-adapt) { display: none; }

.page-news .news-board:has(#nc-topic:checked):has(#nt-fix:checked) .timeline,
.page-news .news-board:has(#nc-topic:checked):has(#nt-perf:checked) .timeline,
.page-news .news-board:has(#nc-service:checked):has(#nt-fix:checked) .timeline,
.page-news .news-board:has(#nc-service:checked):has(#nt-perf:checked) .timeline,
.page-news .news-board:has(#nc-service:checked):has(#nt-adapt:checked) .timeline {
  display: none;
}

.page-news .news-board:has(#nc-topic:checked):has(#nt-fix:checked) .timeline-empty,
.page-news .news-board:has(#nc-topic:checked):has(#nt-perf:checked) .timeline-empty,
.page-news .news-board:has(#nc-service:checked):has(#nt-fix:checked) .timeline-empty,
.page-news .news-board:has(#nc-service:checked):has(#nt-perf:checked) .timeline-empty,
.page-news .news-board:has(#nc-service:checked):has(#nt-adapt:checked) .timeline-empty {
  display: block;
}

/* ============ 栏目分类 ============ */
.page-news .section--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-news .news-cats {
  padding-top: 3.25rem;
  padding-bottom: 3.25rem;
}

.page-news .news-cats .section-head {
  max-width: 58ch;
  margin-bottom: 2.25rem;
}

.page-news .news-cats .section-title,
.page-news .news-archive .section-title {
  color: var(--ink);
}

.page-news .news-cats .prose,
.page-news .news-archive .archive-text {
  color: var(--ink-soft);
  line-height: 1.85;
}

.page-news .cat-list {
  display: grid;
  gap: 1.1rem;
}

.page-news .cat-item {
  position: relative;
  background: #FBF9F3;
  border: 1px solid var(--edge);
  padding: 1.35rem 1.25rem 1.3rem;
  box-shadow: 4px 5px 0 rgba(232, 226, 210, .9);
  border-top: 3px solid var(--edge);
}

.page-news .cat-item--version { border-top-color: var(--gold); }
.page-news .cat-item--topic { border-top-color: var(--cyan); }
.page-news .cat-item--service { border-top-color: var(--clay); }

.page-news .cat-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .16em;
  color: var(--stone);
  margin-bottom: .6rem;
}

.page-news .cat-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: .04em;
  margin: 0 0 .6rem;
  color: var(--ink);
}

.page-news .cat-text {
  margin: 0 0 .85rem;
  font-size: .9375rem;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-news .cat-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--stone);
}

/* ============ 专题系列 ============ */
.page-news .news-topics {
  background:
    radial-gradient(80% 60% at 92% 6%, rgba(212, 168, 83, .12), transparent 62%),
    var(--navy-3);
  padding-top: 3.25rem;
  padding-bottom: 3.25rem;
}

.page-news .news-topics .section-head {
  max-width: 58ch;
  margin-bottom: 2.25rem;
}

.page-news .news-topics .prose {
  color: rgba(244, 241, 232, .78);
}

.page-news .topic-rail {
  display: grid;
  gap: 1.35rem;
  grid-auto-flow: column;
  grid-auto-columns: minmax(248px, 76vw);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 1.25rem;
}

.page-news .topic-card {
  position: relative;
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
  background: var(--navy-2);
  border: 1px solid var(--line-strong);
  overflow: hidden;
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}

.page-news .topic-card:hover {
  transform: translateY(-3px);
  border-color: rgba(212, 168, 83, .55);
}

.page-news .topic-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-bottom: 1px solid var(--line-strong);
}

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

.page-news .topic-body {
  padding: 1.15rem 1.2rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  flex: 1 1 auto;
}

.page-news .topic-name {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-news .topic-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-news .topic-latest {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: rgba(244, 241, 232, .74);
}

.page-news .topic-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 200, .38);
  padding-bottom: .1rem;
}

.page-news .topic-link:hover,
.page-news .topic-link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-news .topic-no {
  position: absolute;
  right: .9rem;
  bottom: .9rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: rgba(212, 168, 83, .55);
}

/* ============ 历史查询 ============ */
.page-news .news-archive {
  padding-top: 3.25rem;
  padding-bottom: 3.25rem;
}

.page-news .archive-card {
  border: 1px solid var(--edge);
  border-left: 4px solid var(--gold);
  background: #FBF9F3;
  padding: 1.5rem 1.35rem 1.5rem;
  box-shadow: 5px 6px 0 rgba(232, 226, 210, .9);
}

.page-news .archive-card .section-title {
  margin-top: .5rem;
  margin-bottom: .9rem;
}

.page-news .archive-list {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: .1rem;
  border-top: 1px solid var(--edge);
}

.page-news .archive-list .meta-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem;
  padding: .75rem 0;
  border-bottom: 1px solid var(--edge);
}

.page-news .archive-list .meta-label {
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-news .archive-list .meta-value {
  font-family: var(--font-mono);
  font-size: .875rem;
  letter-spacing: .06em;
  color: var(--ink);
  word-break: break-all;
}

.page-news .archive-note {
  margin: 1.2rem 0 0;
  font-size: .8125rem;
  line-height: 1.85;
  color: var(--stone);
}

.page-news .archive-note a {
  color: var(--cyan-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(15, 124, 111, .35);
}

.page-news .archive-note a:hover,
.page-news .archive-note a:focus-visible {
  border-bottom-color: var(--cyan-ink);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-news .news-hero {
    padding: 2.25rem 0 4rem;
  }

  .page-news .entry-body {
    padding: 1.35rem 1.5rem 1.4rem;
  }

  .page-news .board-filters {
    padding: 1.15rem 1.35rem;
  }
}

@media (min-width: 768px) {
  .page-news .entry:nth-child(even) .entry-body {
    margin-left: 1.6rem;
  }

  .page-news .cat-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.35rem;
  }
}

@media (min-width: 900px) {
  .page-news .hero-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 3.5rem;
  }

  .page-news .news-hero {
    padding: 3rem 0 5rem;
  }

  .page-news .topic-rail {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-board-section,
  .page-news .news-topics {
    padding-top: 4.5rem;
    padding-bottom: 4.75rem;
  }

  .page-news .news-cats,
  .page-news .news-archive {
    padding-top: 4.5rem;
    padding-bottom: 4.5rem;
  }
}

@media (min-width: 1080px) {
  .page-news .timeline {
    --n-tl-pad: 2.75rem;
    --n-tl-line: 0.6rem;
  }

  .page-news .entry-body {
    padding: 1.5rem 1.75rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-card,
  .page-news .fl-chip,
  .page-news .crumb a {
    transition: none;
  }

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