.page-news {
  --rail-w: 236px;
  --news-band: 1240px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: hidden;
}

.page-news .wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.page-news .mono {
  font-family: var(--mono);
}

/* ---------- 页头 ---------- */
.page-news .news-head {
  padding: 22px 0 34px;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(40, 194, 255, .10) 0, rgba(40, 194, 255, 0) 42%),
    var(--paper);
}

.page-news .breadcrumbs {
  font-size: 12.5px;
  color: var(--muted);
}

.page-news .breadcrumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-news .breadcrumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-news .breadcrumbs__list a {
  color: var(--blue);
  text-decoration: none;
}

.page-news .breadcrumbs__list a:hover {
  color: var(--cyan);
}

.page-news .news-head__grid {
  display: grid;
  gap: 26px;
  margin-top: 22px;
}

.page-news .news-head__eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--blue);
  text-transform: uppercase;
}

.page-news .news-head__title {
  margin: 0 0 14px;
  font-size: clamp(32px, 7vw, 58px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--indigo);
}

.page-news .news-head__lede {
  margin: 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.page-news .news-stats__item {
  padding: 13px 14px 15px;
  background: var(--white);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-stats dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-news .news-stats dd {
  margin: 7px 0 0;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--indigo);
}

.page-news .news-stats__item:nth-child(2) dd {
  color: var(--blue);
}

.page-news .news-stats__item:nth-child(4) dd {
  color: var(--orange);
}

/* ---------- 区块通用 ---------- */
.page-news .section {
  padding: 52px 0;
}

.page-news .chapter {
  margin-bottom: 26px;
}

.page-news .chapter__num {
  display: block;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-news .chapter__title {
  margin: 0 0 12px;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--indigo);
}

.page-news .chapter__lede {
  margin: 0;
  max-width: 700px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 条目流两栏 ---------- */
.page-news .news-body-section {
  padding-top: 0;
}

.page-news .news-body {
  display: grid;
  gap: 34px;
  padding-top: 40px;
  padding-bottom: 8px;
}

.page-news .news-rail {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-news .news-rail__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-news .rail-nav__list {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  scrollbar-width: none;
}

.page-news .rail-nav__list::-webkit-scrollbar {
  display: none;
}

.page-news .rail-nav__link {
  display: flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 10px;
  white-space: nowrap;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  font-size: 14.5px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color var(--t), background var(--t), color var(--t);
}

.page-news .rail-nav__count {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
}

.page-news .rail-nav__link:hover,
.page-news .rail-nav__link:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(40, 194, 255, .08);
  color: var(--indigo);
}

.page-news .news-rail__media {
  display: none;
  margin: 0;
}

.page-news .feed-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--indigo);
}

.page-news .feed-head__title {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--indigo);
}

.page-news .feed-head__note {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
}

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

.page-news .feed__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 4px 16px 15px;
  border-bottom: 1px solid var(--line);
  transition: background var(--t);
}

.page-news .feed__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 280ms ease;
}

.page-news .feed__item:hover {
  background: rgba(40, 194, 255, .055);
}

.page-news .feed__item:hover::before {
  transform: scaleY(1);
}

.page-news .feed__no {
  padding-top: 3px;
  font-size: 11.5px;
  letter-spacing: .07em;
  color: var(--muted);
}

.page-news .feed__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .feed__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
}

.page-news .feed__time {
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--muted);
}

/* ---------- 专题系列 ---------- */
.page-news .series-band {
  margin: 0 0 30px;
}

.page-news .series-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .series {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px 20px 20px;
  background: var(--white);
}

.page-news .series__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-news .series__title {
  margin: 0;
  font-size: 17.5px;
  font-weight: 800;
  color: var(--indigo);
}

.page-news .series__count {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--orange);
  white-space: nowrap;
}

.page-news .series__meter {
  height: 4px;
  background: var(--line);
  overflow: hidden;
}

.page-news .series__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
}

.page-news .series__fill--a { width: 76%; }
.page-news .series__fill--b { width: 88%; }
.page-news .series__fill--c { width: 62%; }
.page-news .series__fill--d { width: 48%; }
.page-news .series__fill--e { width: 34%; }

.page-news .series__next {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange-soft);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 版本变化 ---------- */
.page-news .vs-grid {
  display: grid;
  gap: 28px;
}

.page-news .vs-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .vs-list li {
  position: relative;
  padding: 13px 0 13px 26px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-news .vs-list li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 21px;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.page-news .vs-media {
  margin: 0;
}

/* ---------- 年份归档 ---------- */
.page-news .year-wall {
  position: relative;
  background: var(--indigo);
  overflow: hidden;
  padding: 56px 0;
}

.page-news .year-wall__bg {
  position: absolute;
  inset: 0;
  opacity: .16;
  pointer-events: none;
}

.page-news .year-wall__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center bottom;
}

.page-news .year-wall__inner {
  position: relative;
  z-index: 1;
}

.page-news .year-wall .chapter__title {
  color: var(--white);
}

.page-news .year-wall .chapter__lede {
  color: var(--on-dark);
}

.page-news .year-list {
  display: grid;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
  background: rgba(201, 211, 232, .22);
  border-top: 1px solid rgba(201, 211, 232, .22);
  border-bottom: 1px solid rgba(201, 211, 232, .22);
}

.page-news .year-item {
  padding: 18px 16px 20px;
  background: var(--indigo);
}

.page-news .year-item__year {
  display: block;
  font-size: 25px;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--cyan);
}

.page-news .year-item__note {
  margin: 9px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

/* ---------- 续读路径 ---------- */
.page-news .next-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .next-card {
  display: block;
  padding: 26px 22px 24px;
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color var(--t), background var(--t);
}

.page-news .next-card:hover,
.page-news .next-card:focus-visible {
  border-left-color: var(--orange);
  background: var(--paper);
}

.page-news .next-card__num {
  display: block;
  margin-bottom: 12px;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-news .next-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--indigo);
}

.page-news .next-card__text {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .next-card__go {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--orange);
}

/* ---------- 图片自适应 ---------- */
.page-news .media img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .media--4x3 img {
  aspect-ratio: 4 / 3;
  width: 100%;
}

.page-news .media--21x9 img {
  aspect-ratio: 21 / 9;
  width: 100%;
}

.page-news .news-rail__media img {
  width: 100%;
  aspect-ratio: 3 / 4;
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-news .section {
    padding: 68px 0;
  }

  .page-news .year-wall {
    padding: 68px 0;
  }

  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-news .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 960px) {
  .page-news .news-head {
    padding: 28px 0 44px;
  }

  .page-news .news-head__grid {
    grid-template-columns: minmax(0, 1fr) 384px;
    align-items: end;
    gap: 56px;
    margin-top: 28px;
  }

  .page-news .section {
    padding: 84px 0;
  }

  .page-news .news-body {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: 56px;
    padding-top: 60px;
    padding-bottom: 24px;
  }

  .page-news .news-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-news .rail-nav__list {
    display: block;
    overflow: visible;
  }

  .page-news .rail-nav__link {
    display: flex;
    white-space: normal;
    justify-content: space-between;
    padding: 12px 8px 12px 12px;
  }

  .page-news .news-rail__media {
    display: block;
  }

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

  .page-news .vs-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: 56px;
    align-items: start;
  }

  .page-news .year-wall {
    padding: 84px 0;
  }

  .page-news .year-list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-news .news-body {
    gap: 72px;
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }

  .page-news .feed__item::before {
    transition: none;
  }
}
<<<END>>>