.page-news {
  background: var(--sand);
  color: var(--ink);
}

/* 首屏 */
.page-news .news-hero {
  padding-top: calc(var(--header-h) + clamp(20px, 3.5vw, 44px));
  padding-bottom: clamp(30px, 4.5vw, 54px);
  background: linear-gradient(180deg, var(--sand-hi) 0%, var(--sand) 74%);
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .news-hero__lead h1 {
  margin: 10px 0 18px;
  font-family: var(--sans);
  font-size: clamp(30px, 4.6vw, 54px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--teal-deep);
  max-width: 14em;
}

.page-news .news-hero__lead .lede {
  max-width: 36em;
  font-family: var(--serif);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--ink-soft);
  margin: 0;
}

.page-news .news-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  list-style: none;
  margin: 26px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.page-news .news-hero__num {
  display: block;
  font-family: var(--mono);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--teal-deep);
  margin-bottom: 5px;
}

.page-news .news-hero__figure {
  margin: 0;
}

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

/* 版本时间带 */
.page-news .news-timeline {
  padding: clamp(28px, 4vw, 46px) 0;
  background: var(--teal-deep);
  color: var(--sand-hi);
}

.page-news .timeline-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .timeline-svg__axis {
  fill: none;
  stroke: rgba(244, 237, 225, 0.26);
  stroke-width: 1.5;
}

.page-news .timeline-svg__path {
  fill: none;
  stroke: var(--blue-light);
  stroke-width: 1.5;
  stroke-dasharray: 5 7;
  opacity: 0.85;
}

.page-news .timeline-svg__node {
  fill: var(--teal-deep);
  stroke: var(--blue-light);
  stroke-width: 2;
}

.page-news .timeline-svg__node--now {
  fill: var(--gold);
  stroke: var(--gold);
  filter: drop-shadow(0 0 6px rgba(199, 154, 59, 0.6));
}

.page-news .timeline-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-news .timeline-legend__item {
  border-left: 1px solid rgba(244, 237, 225, 0.22);
  padding-left: 12px;
}

.page-news .timeline-legend__code {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  margin-bottom: 5px;
}

.page-news .timeline-legend__text {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(251, 247, 239, 0.82);
}

/* 双栏骨架 */
.page-news .news-layout {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  padding-top: clamp(32px, 4.5vw, 58px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-news .news-rail {
  display: grid;
  gap: 26px;
  align-content: start;
}

.page-news .rail-block {
  border-top: 2px solid var(--teal);
  padding-top: 12px;
}

.page-news .rail-block__label {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-news .series-nav {
  display: grid;
  gap: 2px;
}

.page-news .series-nav__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-news .series-nav__link:hover,
.page-news .series-nav__link:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--gold);
}

.page-news .series-nav__count {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

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

.page-news .rail-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .rail-links__link {
  font-size: 14px;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 140ms var(--ease);
}

.page-news .rail-links__link:hover,
.page-news .rail-links__link:focus-visible {
  border-bottom-color: var(--blue);
}

/* 编辑目录 */
.page-news .news-latest__head {
  margin-bottom: 20px;
}

.page-news .news-latest__head h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--teal-deep);
}

.page-news .news-latest__head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .digest {
  display: grid;
  gap: 8px;
  padding: 20px 0 22px;
  border-top: 1px solid var(--line);
}

.page-news .digest-list > .digest:first-child {
  border-top: 2px solid var(--teal-deep);
}

.page-news .digest--card {
  display: block;
  margin: 22px 0;
  padding: 22px 20px;
  background: var(--sand-hi);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  box-shadow: 0 1px 0 rgba(22, 33, 31, 0.04);
}

.page-news .digest--card .digest__when {
  margin: 0 0 8px;
}

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

.page-news .digest__tag {
  display: inline-block;
  margin: 0 0 8px;
  padding: 2px 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border: 1px solid var(--line);
  color: var(--muted);
}

.page-news .digest__tag--version {
  color: var(--teal);
  border-color: rgba(31, 111, 99, 0.4);
  background: rgba(31, 111, 99, 0.06);
}

.page-news .digest__tag--search {
  color: var(--blue);
  border-color: rgba(43, 95, 138, 0.4);
  background: rgba(43, 95, 138, 0.06);
}

.page-news .digest__tag--scene {
  color: var(--gold-deep);
  border-color: rgba(199, 154, 59, 0.45);
  background: rgba(199, 154, 59, 0.09);
}

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

.page-news .digest__sum {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 44em;
}

.page-news .digest__more {
  margin-top: 10px;
}

.page-news .digest__more summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--teal);
  display: inline-block;
  border-bottom: 1px dashed rgba(31, 111, 99, 0.5);
  padding-bottom: 1px;
}

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

.page-news .digest__more summary::after {
  content: " +";
}

.page-news .digest__more[open] summary::after {
  content: " −";
}

.page-news .digest__more p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 44em;
}

/* 系列正文 */
.page-news .series-block {
  padding: clamp(34px, 4.5vw, 58px) 0;
  border-top: 1px solid var(--line);
}

.page-news .series-block__kicker {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-news .series-block h2 {
  margin: 0 0 18px;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--teal-deep);
  max-width: 20em;
}

.page-news .series-block p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
  max-width: 40em;
}

.page-news .series-block .series-block__lead {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink);
}

.page-news .series-block__link {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 111, 99, 0.4);
}

.page-news .series-block__link:hover,
.page-news .series-block__link:focus-visible {
  border-bottom-color: var(--gold);
}

.page-news .series-block__figure {
  margin: 0 0 22px;
}

.page-news .series-block__figure img,
.page-news .cadence__figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* 场景列表 */
.page-news .scene-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-news .scene-item {
  border-top: 2px solid var(--ink-soft);
  padding-top: 14px;
}

.page-news .scene-item__code {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-news .scene-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

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

/* 更新节奏 */
.page-news .cadence {
  padding: clamp(34px, 5vw, 64px) 0;
  background: var(--teal-deep);
  color: var(--sand-hi);
}

.page-news .cadence__grid {
  display: grid;
  gap: 28px;
}

.page-news .cadence .eyebrow {
  color: var(--gold);
  margin: 0 0 10px;
}

.page-news .cadence h2 {
  margin: 0 0 16px;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--sand-hi);
}

.page-news .cadence p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(251, 247, 239, 0.84);
  max-width: 38em;
}

.page-news .cadence .btn {
  margin-top: 8px;
}

.page-news .cadence__figure {
  margin: 0;
}

/* 归档 */
.page-news .news-archive {
  padding: clamp(34px, 4.5vw, 58px) 0;
  background: var(--sand-hi);
  border-top: 1px solid var(--line);
}

.page-news .news-archive__head h2 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--teal-deep);
}

.page-news .news-archive__head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .archive-track {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-news .archive-track__item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .archive-track__when {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.page-news .archive-track__count {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--teal-deep);
}

.page-news .archive-track__what {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .archive-track__link {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 95, 138, 0.4);
}

.page-news .archive-track__link:hover,
.page-news .archive-track__link:focus-visible {
  border-bottom-color: var(--gold);
}

/* 平板及桌面 */
@media (min-width: 640px) {
  .page-news .digest {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 0 28px;
    padding: 24px 0;
  }

  .page-news .digest--card {
    display: block;
    padding: 24px 22px;
  }

  .page-news .digest--card .digest__when {
    margin: 0 0 8px;
  }

  .page-news .timeline-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-news .scene-list {
    grid-template-columns: 1.15fr 0.9fr 1fr;
    gap: 26px;
    align-items: start;
  }

  .page-news .scene-item:nth-child(2) {
    margin-top: 32px;
  }

  .page-news .scene-item:nth-child(3) {
    margin-top: 64px;
  }

  .page-news .archive-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .archive-track__item {
    padding: 20px 22px 20px 0;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-news .archive-track__item:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-news .archive-track__item + .archive-track__item {
    padding-left: 22px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-news .timeline-legend {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .news-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-news .cadence__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-nav__link,
  .page-news .rail-links__link {
    transition: none;
  }
}
<<<END>>>