.page-news {
  --n-rail-w: 264px;
  --n-tag-blue-bg: #E2EFF6;
  --n-tag-blue-fg: #17546F;
  --n-tag-green-bg: #E5F0E9;
  --n-tag-green-fg: #24513A;
  --n-tag-yellow-bg: #FBF0D6;
  --n-tag-yellow-fg: #6B4C10;
  --n-tag-ochre-bg: #FAEDE2;
  --n-tag-ochre-fg: #7A3E10;
  --n-tag-red-bg: #FBEAE7;
  --n-tag-red-fg: #8E2F22;
  background: var(--salt);
  color: var(--ink);
}

/* ---------- 页首标题带 ---------- */
.page-news .news-masthead {
  position: relative;
  overflow: hidden;
  padding: var(--sp-4) 0 var(--sp-5);
  background: linear-gradient(158deg, var(--lake-deep) 0%, var(--lake) 64%, #236580 100%);
  color: var(--paper);
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -110px;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(181, 101, 29, .42), transparent 68%);
  pointer-events: none;
}

.page-news .news-masthead .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-masthead .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 var(--sp-4);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, .62);
}

.page-news .news-masthead .breadcrumbs li::after {
  content: "/";
  margin-left: 6px;
  color: rgba(255, 255, 255, .34);
}

.page-news .news-masthead .breadcrumbs li:last-child::after {
  content: none;
}

.page-news .news-masthead .breadcrumbs a {
  color: rgba(255, 255, 255, .88);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}

.page-news .news-masthead .breadcrumbs a:hover {
  border-bottom-color: rgba(255, 255, 255, .6);
}

.page-news .masthead-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

.page-news .masthead-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 var(--sp-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .72);
}

.page-news .masthead-kicker::before {
  content: "";
  display: block;
  flex: 0 0 auto;
  width: 32px;
  height: 2px;
  background: var(--ochre);
}

.page-news .news-masthead h1 {
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 8vw, 80px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: #fff;
}

.page-news .masthead-lead {
  max-width: 48ch;
  margin: 0 0 var(--sp-4);
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .84);
}

.page-news .masthead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .masthead-actions .btn {
  padding: 13px 22px;
  border-radius: var(--r-sm);
  font-weight: 700;
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-news .masthead-actions .btn-solid {
  background: var(--ochre);
  border: 1px solid var(--ochre);
  color: #fff;
}

.page-news .masthead-actions .btn-solid:hover {
  background: var(--ochre-dark);
  border-color: var(--ochre-dark);
}

.page-news .masthead-actions .btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .5);
  color: #fff;
}

.page-news .masthead-actions .btn-outline:hover {
  background: rgba(255, 255, 255, .13);
  border-color: #fff;
}

.page-news .masthead-panel {
  padding: var(--sp-3);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--r-md);
  background: rgba(9, 38, 51, .52);
}

.page-news .panel-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, .16);
}

.page-news .panel-row:first-child {
  padding-top: 0;
}

.page-news .panel-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .panel-label {
  font-size: 13px;
  color: rgba(255, 255, 255, .66);
}

.page-news .panel-value {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: #fff;
}

.page-news .panel-value em {
  margin-left: 3px;
  font-style: normal;
  font-size: 12px;
  color: var(--flag-yellow);
}

/* ---------- 双栏布局 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-6);
}

.page-news .news-rail {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.page-news .rail-nav {
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-news .rail-nav ul {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-news .rail-link:hover {
  color: var(--ochre-dark);
  border-color: var(--ochre);
}

.page-news .rail-index {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-faint);
}

.page-news .rail-card {
  display: none;
  padding: var(--sp-3) 16px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--lake);
  border-radius: var(--r-sm);
  background: var(--paper);
}

.page-news .rail-card-title {
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-news .rail-card-text {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-news .rail-card-link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ochre-dark);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-news .news-stream > section {
  scroll-margin-top: 104px;
  margin-bottom: var(--sp-5);
}

.page-news .news-stream > section:last-child {
  margin-bottom: 0;
}

/* ---------- 区块标题 ---------- */
.page-news .blk-head {
  margin-bottom: var(--sp-3);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--rule);
}

.page-news .blk-num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ochre-dark);
}

.page-news .blk-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-news .blk-lead {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-mute);
}

/* ---------- 资讯条目 ---------- */
.page-news .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-2);
}

.page-news .entry {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--sp-3);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--paper);
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-news .entry:hover {
  transform: translateY(-2px);
  border-color: var(--lake);
  box-shadow: 0 12px 26px -20px rgba(23, 42, 51, .8);
}

.page-news .entry--wide {
  grid-column: 1 / -1;
  background:
    linear-gradient(180deg, rgba(27, 107, 140, .05), rgba(27, 107, 140, 0) 62%),
    var(--paper);
  border-left: 3px solid var(--lake);
}

.page-news .entry-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .cat-tag {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.5;
}

.page-news .cat-tag--version {
  background: var(--n-tag-blue-bg);
  color: var(--n-tag-blue-fg);
}

.page-news .cat-tag--migrate {
  background: var(--n-tag-green-bg);
  color: var(--n-tag-green-fg);
}

.page-news .cat-tag--screen {
  background: var(--n-tag-yellow-bg);
  color: var(--n-tag-yellow-fg);
}

.page-news .cat-tag--case {
  background: var(--n-tag-ochre-bg);
  color: var(--n-tag-ochre-fg);
}

.page-news .cat-tag--notice {
  background: var(--n-tag-red-bg);
  color: var(--n-tag-red-fg);
}

.page-news .entry-meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-faint);
  white-space: nowrap;
}

.page-news .entry-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.48;
  color: var(--ink);
}

.page-news .entry-text {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-mute);
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* ---------- 版本时间线 ---------- */
.page-news .timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding-left: 26px;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--ochre) 0%, var(--rule) 72%, var(--rule) 100%);
}

.page-news .tl-node {
  position: relative;
}

.page-news .tl-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 22px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--ochre);
  border-radius: 50%;
  background: var(--salt);
}

.page-news .tl-node--current::before {
  background: var(--ochre);
  box-shadow: 0 0 0 4px rgba(181, 101, 29, .18);
}

.page-news .tl-card {
  padding: var(--sp-3);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--paper);
}

.page-news .tl-card--feature {
  padding: 0;
  overflow: hidden;
}

.page-news .tl-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .tl-card--feature .tl-body {
  padding: var(--sp-3);
}

.page-news .tl-tagline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 8px;
}

.page-news .tl-version {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--lake-deep);
}

.page-news .tl-version--plain {
  display: block;
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--ochre-dark);
}

.page-news .tl-badge {
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--flag-yellow);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
}

.page-news .tl-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .tl-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-news .tl-link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ochre-dark);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* ---------- 迁移专题 ---------- */
.page-news .topic-cover {
  margin: 0 0 var(--sp-3);
}

.page-news .topic-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.page-news .topic-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news .topic {
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  background: var(--paper);
}

.page-news .topic[open] {
  border-color: var(--lake);
}

.page-news .topic summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px var(--sp-2);
  list-style: none;
  cursor: pointer;
  transition: background .2s var(--ease);
}

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

.page-news .topic summary:hover {
  background: rgba(27, 107, 140, .05);
}

.page-news .topic summary:focus-visible {
  outline: 2px solid var(--ochre);
  outline-offset: -3px;
}

.page-news .topic-idx {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ochre-dark);
}

.page-news .topic-sum-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-news .topic-sum-title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .topic-sum-note {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink-mute);
}

.page-news .topic-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  margin-top: 1px;
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  background: var(--salt);
}

.page-news .topic-toggle::before,
.page-news .topic-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--ochre-dark);
  transform: translate(-50%, -50%);
}

.page-news .topic-toggle::before {
  width: 10px;
  height: 2px;
}

.page-news .topic-toggle::after {
  width: 2px;
  height: 10px;
  transition: opacity .2s var(--ease);
}

.page-news .topic[open] .topic-toggle::after {
  opacity: 0;
}

.page-news .topic-body {
  padding: 0 var(--sp-2) var(--sp-2) calc(var(--sp-2) + 30px);
}

.page-news .topic-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 场景案例 ---------- */
.page-news .case-figure {
  margin: 0 0 var(--sp-3);
}

.page-news .case-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--rule);
}

.page-news .case-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 82%);
  gap: var(--sp-2);
  overflow-x: auto;
  padding-bottom: var(--sp-2);
  scroll-snap-type: x mandatory;
}

.page-news .case-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--sp-2);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--lake);
  border-radius: var(--r-md);
  background: var(--paper);
  scroll-snap-align: start;
}

.page-news .case-name {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-news .case-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-mute);
}

.page-news .case-out {
  margin: auto 0 0;
  padding-top: 8px;
  border-top: 1px dashed var(--rule);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ochre-dark);
}

/* ---------- 服务公告 ---------- */
.page-news .notice-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-3);
}

.page-news .notice-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .notice-item {
  padding: 15px 0;
  border-bottom: 1px dashed var(--rule);
}

.page-news .notice-item:first-child {
  padding-top: 0;
}

.page-news .notice-item:last-child {
  border-bottom: 0;
}

.page-news .notice-when {
  display: inline-block;
  margin-bottom: 5px;
  padding: 2px 8px;
  border-radius: 3px;
  background: var(--n-tag-blue-bg);
  color: var(--n-tag-blue-fg);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-news .notice-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

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

.page-news .notice-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--rule);
}

.page-news .notice-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-faint);
}

/* ---------- 下一步 ---------- */
.page-news .go-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-2);
}

.page-news .go-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--sp-3);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-md);
  background: var(--lake-deep);
  color: #fff;
  text-decoration: none;
  transition: background .25s var(--ease), transform .25s var(--ease);
}

.page-news .go-card:hover {
  transform: translateY(-2px);
  background: var(--lake);
}

.page-news .go-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.page-news .go-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(255, 255, 255, .78);
}

.page-news .go-card span {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--flag-yellow);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-news .entry-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-3);
  }

  .page-news .entry--wide .entry-title {
    font-size: 21px;
  }

  .page-news .entry-meta {
    margin-left: 0;
  }

  .page-news .entry-top {
    justify-content: space-between;
  }
}

@media (min-width: 720px) {
  .page-news .go-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .rail-card {
    display: block;
  }
}

@media (min-width: 800px) {
  .page-news .notice-wrap {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: var(--sp-4);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .masthead-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 1fr);
    gap: var(--sp-5);
    align-items: end;
  }

  .page-news .case-strip {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: var(--n-rail-w) minmax(0, 1fr);
    gap: var(--sp-5);
  }

  .page-news .news-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-news .rail-nav {
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .rail-nav ul {
    flex-direction: column;
    gap: 2px;
  }

  .page-news .rail-link {
    display: flex;
    width: 100%;
    padding: 10px 0 10px 16px;
    border: 0;
    border-left: 2px solid var(--rule);
    border-radius: 0;
    background: transparent;
    white-space: normal;
  }

  .page-news .rail-link:hover {
    border-left-color: var(--ochre);
    background: rgba(27, 107, 140, .05);
    color: var(--lake-deep);
  }

  .page-news .entry--wide .entry-title {
    font-size: 24px;
  }

  .page-news .timeline {
    padding-left: 34px;
  }

  .page-news .timeline::before {
    left: 7px;
    width: 2px;
  }

  .page-news .tl-node::before {
    left: -34px;
    top: 24px;
    width: 14px;
    height: 14px;
  }

  .page-news .tl-card {
    padding: var(--sp-4);
  }

  .page-news .tl-card--feature .tl-body {
    padding: var(--sp-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .go-card,
  .page-news .topic-toggle::after {
    transition: none;
  }

  .page-news .entry:hover,
  .page-news .go-card:hover {
    transform: none;
  }
}
<<<END>>>