.page-news {
  display: block;
  --news-radius: 2px;
  --news-rail-w: 22px;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumbs {
  padding: 18px 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-slate);
}
.page-news .breadcrumbs a {
  color: var(--c-electric);
  text-decoration: none;
}
.page-news .breadcrumbs a:hover { text-decoration: underline; }

/* ---------- 框景首屏 ---------- */
.page-news .news-hero { padding: 10px 0 0; }
.page-news .news-hero__frame {
  position: relative;
  border: var(--line);
  background: var(--c-paper);
  box-shadow: var(--shadow);
  border-radius: var(--news-radius);
  overflow: hidden;
}
.page-news .news-hero__ticks {
  height: 16px;
  border-bottom: 2px solid var(--c-ink);
  background-image: repeating-linear-gradient(90deg, var(--c-clay) 0 2px, transparent 2px 22px);
  background-size: 22px 9px;
  background-repeat: repeat-x;
  background-position: 4px 100%;
  background-color: var(--c-mist);
}
.page-news .news-hero__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 22px 18px 24px;
}
.page-news .news-hero__copy { min-width: 0; }
.page-news .news-hero__copy h1 {
  margin: 10px 0 14px;
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--c-ink);
}
.page-news .news-hero__lede {
  margin: 0 0 20px;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-slate);
}
.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.page-news .news-hero__media {
  margin: 0;
  border: var(--line);
  border-radius: var(--news-radius);
  overflow: hidden;
  background: var(--c-mist);
}
.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}
.page-news .news-hero__ticker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  padding: 10px 18px;
  border-top: var(--line);
  background: var(--c-mist);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-ink);
}
.page-news .news-hero__ticker span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.page-news .news-hero__ticker span::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--c-jersey);
  flex: none;
}

/* ---------- 章节通用 ---------- */
.page-news .section { padding: 44px 0; }
.page-news .section + .section { border-top: 1px solid var(--c-mist); }
.page-news .section--tight { padding: 30px 0 56px; }
.page-news .section__head { margin-bottom: 24px; }
.page-news .section__title {
  margin: 8px 0 10px;
  font-family: var(--font-serif);
  font-size: 26px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--c-ink);
}
.page-news .section__intro {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-slate);
}

/* ---------- 批次摘要卡片 ---------- */
.page-news .grid--3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-news .card {
  border: var(--line);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  box-shadow: var(--shadow-sm);
  padding: 18px 16px 20px;
  transition: box-shadow 200ms var(--ease), transform 200ms var(--ease);
}
.page-news .card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow);
}
.page-news .card:nth-child(2) { transform: translateY(0); }
.page-news .card__meta {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-jersey);
  text-transform: uppercase;
}
.page-news .card__title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  color: var(--c-ink);
}
.page-news .card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-slate);
}

/* ---------- 时间轴 ---------- */
.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 26px;
}
.page-news .tl-item {
  display: grid;
  grid-template-columns: var(--news-rail-w) 1fr;
  gap: 14px;
  min-width: 0;
}
.page-news .tl-rail { position: relative; }
.page-news .tl-rail::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: -26px;
  width: 2px;
  background: var(--c-mist);
  transform: translateX(-50%);
}
.page-news .tl-item:last-child .tl-rail::before { bottom: auto; height: 34px; }
.page-news .tl-node {
  position: absolute;
  left: 50%;
  top: 24px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--c-ridge);
  border-radius: 50%;
  background: var(--c-paper);
  transform: translateX(-50%);
}
.page-news .tl-item--feature .tl-node {
  width: 18px;
  height: 18px;
  top: 21px;
  background: var(--c-batch);
  border-color: var(--c-ink);
}

.page-news .tl-card {
  min-width: 0;
  max-width: 660px;
  border: var(--line);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  box-shadow: var(--shadow-sm);
  padding: 16px 16px 18px;
  transition: box-shadow 200ms var(--ease), transform 200ms var(--ease);
}
.page-news .tl-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow);
}
.page-news .tl-item--feature .tl-card {
  max-width: none;
  background: var(--c-batch);
  box-shadow: var(--shadow);
}
.page-news .tl-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.page-news .tl-when {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-slate);
}
.page-news .tl-item--feature .tl-when { color: var(--c-ink); }
.page-news .tl-title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
  color: var(--c-ink);
}
.page-news .tl-summary {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-slate);
}
.page-news .tl-item--feature .tl-summary { color: var(--c-ink); }
.page-news .tl-item--feature .annotation { color: var(--c-ink); }

.page-news .tl-details {
  margin-top: 6px;
  border-top: 1px dashed var(--c-ink);
  padding-top: 4px;
}
.page-news .tl-details summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  color: var(--c-ink);
}
.page-news .tl-details summary::-webkit-details-marker { display: none; }
.page-news .tl-details summary::before {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 14px;
  flex: none;
}
.page-news .tl-details[open] summary::before { content: "－"; }
.page-news .tl-details summary:focus-visible {
  outline: 2px solid var(--c-electric);
  outline-offset: 3px;
}
.page-news .tl-details ul {
  margin: 0 0 10px;
  padding-left: 18px;
  list-style: none;
}
.page-news .tl-details li {
  position: relative;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ink);
}
.page-news .tl-details li::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 11px;
  width: 6px;
  height: 6px;
  background: var(--c-clay);
}

/* ---------- 改动分类 ---------- */
.page-news .cat-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.page-news .cat-figure {
  margin: 0;
  border: var(--line);
  border-radius: var(--news-radius);
  background: var(--c-mist);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.page-news .cat-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-news .media__caption {
  display: block;
  padding: 9px 12px;
  border-top: 1px solid var(--c-ink);
  background: var(--c-paper);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-slate);
}
.page-news .cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-news .cat-card {
  border: var(--line);
  border-left: 8px solid var(--c-ridge);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  padding: 14px 16px 18px;
  box-shadow: var(--shadow-sm);
}
.page-news .cat-card:nth-child(even) { border-left-color: var(--c-electric); }
.page-news .cat-card:nth-child(3n) { border-left-color: var(--c-clay); }
.page-news .cat-card__code {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-slate);
}
.page-news .cat-card__title {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 18px;
  color: var(--c-ink);
  border-bottom: 2px solid var(--c-batch);
  display: inline-block;
  padding-bottom: 2px;
}
.page-news .cat-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-slate);
}

/* ---------- 版本对照 ---------- */
.page-news .compare-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-news .compare-figure {
  margin: 0;
  border: var(--line);
  border-radius: var(--news-radius);
  overflow: hidden;
  background: var(--c-mist);
  box-shadow: var(--shadow-sm);
}
.page-news .compare-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}
.page-news .compare-board {
  border: var(--line);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.page-news .compare-board__head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  font-size: 12px;
  letter-spacing: .04em;
}
.page-news .compare-board__head span {
  padding: 10px 12px;
  background: var(--c-ridge);
  color: var(--c-paper);
}
.page-news .compare-board__head span:last-child {
  background: var(--c-jersey);
  color: #FFFFFF;
}
.page-news .compare-board__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-news .compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--c-mist);
}
.page-news .compare-row:first-child { border-top: 0; }
.page-news .compare-row p {
  margin: 0;
  padding: 12px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-slate);
}
.page-news .compare-row__old {
  border-right: 1px dashed var(--c-slate);
}
.page-news .compare-row__new {
  color: var(--c-ink) !important;
  background: rgba(31, 90, 224, .05);
}
.page-news .compare-row--hl .compare-row__new {
  background: var(--c-batch);
  color: var(--c-ink) !important;
}
.page-news .compare-cta {
  margin-top: 22px;
  padding: 18px 16px;
  border: var(--line);
  border-left: 10px solid var(--c-electric);
  border-radius: var(--news-radius);
  background: var(--c-mist);
}
.page-news .compare-cta p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink);
}
.page-news .compare-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: center;
}

/* ---------- 月度专题 ---------- */
.page-news .topic-strip {
  list-style: none;
  margin: 0;
  padding: 0 0 12px;
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.page-news .topic-card {
  flex: 0 0 268px;
  scroll-snap-align: start;
  border: var(--line);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  box-shadow: var(--shadow-sm);
  padding: 16px;
  display: flex;
  flex-direction: column;
}
.page-news .topic-card:nth-child(2) { margin-top: 14px; }
.page-news .topic-card:nth-child(4) { margin-top: 14px; }
.page-news .topic-card__issue {
  margin: 0 0 10px;
  display: inline-block;
  align-self: flex-start;
  padding: 3px 8px;
  background: var(--c-batch);
  color: var(--c-ink);
  font-size: 11px;
  letter-spacing: .08em;
}
.page-news .topic-card__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.4;
  color: var(--c-ink);
}
.page-news .topic-card p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-slate);
}

/* ---------- 发布节奏 ---------- */
.page-news .cadence-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
.page-news .cadence-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-news .cadence-fact {
  border: var(--line);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  padding: 16px;
  box-shadow: var(--shadow-sm);
}
.page-news .cadence-fact__num {
  margin: 0;
  font-size: 40px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--c-ridge);
}
.page-news .cadence-fact:nth-child(2) .cadence-fact__num { color: var(--c-jersey); }
.page-news .cadence-fact:nth-child(3) .cadence-fact__num { color: var(--c-electric); }
.page-news .cadence-fact__title {
  margin: 8px 0 8px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--c-ink);
}
.page-news .cadence-fact p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-slate);
}
.page-news .cadence-figure {
  margin: 0;
  border: var(--line);
  border-radius: var(--news-radius);
  overflow: hidden;
  background: var(--c-mist);
  box-shadow: var(--shadow-sm);
}
.page-news .cadence-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 下一步窄条 ---------- */
.page-news .next-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: center;
  border: var(--line);
  border-left: 10px solid var(--c-jersey);
  border-radius: var(--news-radius);
  background: var(--c-paper);
  box-shadow: var(--shadow);
  padding: 20px 18px;
}
.page-news .next-strip__lead {
  margin: 6px 0 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-slate);
}
.page-news .next-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  align-items: center;
}

/* ---------- 键盘焦点 ---------- */
.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--c-electric);
  outline-offset: 3px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-news .news-hero__body {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 26px;
    padding: 30px 26px 32px;
  }
  .page-news .news-hero__copy h1 { font-size: 40px; }
  .page-news .news-hero__ticks { height: 18px; }
  .page-news .news-hero__ticker { padding: 12px 26px; }

  .page-news .section { padding: 56px 0; }
  .page-news .section__title { font-size: 32px; }

  .page-news .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .page-news .grid--3 > :nth-child(2) { transform: translateY(18px); }

  .page-news .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .page-news .cadence-facts { grid-template-columns: repeat(3, 1fr); }

  .page-news .compare-board__head span,
  .page-news .compare-row p { font-size: 14.5px; padding: 14px 16px; }

  .page-news .topic-strip { flex-wrap: wrap; overflow: visible; padding-bottom: 0; }
  .page-news .topic-card { flex: 1 1 240px; }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-news .news-hero { padding-top: 16px; }
  .page-news .news-hero__body {
    grid-template-columns: 7fr 5fr;
    gap: 34px;
    padding: 40px 36px 42px;
  }
  .page-news .news-hero__copy h1 { font-size: 50px; }
  .page-news .news-hero__lede { font-size: 17px; }
  .page-news .news-hero__ticker { padding: 13px 36px; gap: 8px 28px; }

  .page-news .section { padding: 68px 0; }
  .page-news .section__title { font-size: 36px; }

  .page-news .grid--3 { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .page-news .grid--3 > :nth-child(2) { transform: translateY(22px); }

  .page-news .timeline { gap: 34px; }
  .page-news .tl-item { gap: 22px; }
  .page-news .tl-card { padding: 20px 24px 22px; }

  .page-news .cat-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 32px;
    align-items: start;
  }
  .page-news .cat-figure { position: sticky; top: 24px; }
  .page-news .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }

  .page-news .compare-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 28px;
    align-items: start;
  }
  .page-news .compare-cta {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 24px;
    align-items: center;
    padding: 22px 26px;
  }
  .page-news .compare-cta p { margin: 0; }

  .page-news .topic-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .page-news .topic-card { flex: none; }
  .page-news .topic-card:nth-child(2) { margin-top: 22px; }
  .page-news .topic-card:nth-child(3) { margin-top: 8px; }
  .page-news .topic-card:nth-child(4) { margin-top: 30px; }

  .page-news .cadence-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 28px;
    align-items: start;
  }
  .page-news .cadence-facts { grid-template-columns: 1fr; gap: 16px; }
  .page-news .cadence-fact {
    display: grid;
    grid-template-columns: 90px 1fr;
    grid-template-rows: auto auto;
    gap: 0 18px;
    align-items: center;
  }
  .page-news .cadence-fact__num { grid-row: 1 / 3; font-size: 52px; }
  .page-news .cadence-fact__title { margin-top: 0; }

  .page-news .next-strip {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    padding: 26px 30px;
  }
  .page-news .next-strip__actions { justify-content: flex-end; }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .card,
  .page-news .tl-card {
    transition: opacity 120ms linear;
  }
  .page-news .card:hover,
  .page-news .tl-card:hover {
    transform: none;
  }
  .page-news .grid--3 > :nth-child(2),
  .page-news .topic-card:nth-child(2),
  .page-news .topic-card:nth-child(3),
  .page-news .topic-card:nth-child(4) {
    transform: none;
    margin-top: 0;
  }
}
<<<END>>>