.page-news {
  --news-rail: clamp(66px, 13vw, 92px);
  --news-side-w: 272px;
  --news-gap: clamp(26px, 4vw, 56px);
  background-image:
    linear-gradient(rgba(42, 55, 102, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 55, 102, 0.16) 1px, transparent 1px);
  background-size: 76px 76px;
  background-position: -1px -1px;
}

.page-news section[id] {
  scroll-margin-top: 92px;
}

.page-news .news-crumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 页头 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(32px, 5vw, 60px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: 22%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--mint), transparent);
  transform: rotate(-5.5deg);
  opacity: 0.45;
  pointer-events: none;
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
}

.page-news .news-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(38px, 7vw, 92px);
  line-height: 1.03;
  letter-spacing: -0.04em;
  color: var(--fog);
}

.page-news .news-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .news-hero__actions {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .news-hero__figure {
  position: relative;
  margin: 0;
  border: var(--border) solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

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

.page-news .news-hero__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 7px 12px;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--mint);
}

/* ---------- 数据带 ---------- */
.page-news .news-band {
  display: grid;
  gap: 2px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: var(--border) solid var(--line);
  background: var(--line);
}

.page-news .news-band .data-band__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  background: var(--panel);
}

.page-news .news-band .data-band__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-news .news-band .data-band__value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.6vw, 22px);
  letter-spacing: -0.01em;
  color: var(--fog);
  font-variant-numeric: tabular-nums;
}

/* ---------- 主体两栏 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  padding-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-news .news-side__sticky {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .news-side__label {
  margin: 18px 0 6px;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-news .news-side__label::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 2px;
  margin-right: 8px;
  vertical-align: middle;
  background: var(--amber);
}

.page-news .news-side__nav {
  display: flex;
  flex-direction: column;
}

.page-news .news-side__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  color: var(--mist);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease, border-color 0.2s ease;
}

.page-news .news-side__link .mono {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-news .news-side__link:hover,
.page-news .news-side__link:focus-visible {
  color: var(--fog);
  padding-left: 8px;
  border-bottom-color: var(--mint);
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-filter .filter-btn {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 7px 11px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mist);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-news .news-filter .filter-btn:hover,
.page-news .news-filter .filter-btn:focus-visible {
  border-color: var(--mint);
  color: var(--fog);
}

.page-news .news-filter .filter-btn[aria-pressed="true"],
.page-news .news-filter .filter-btn.is-active {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink);
}

.page-news .filter-status {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-news .news-side__figure {
  margin: 18px 0 0;
  border: var(--border) solid var(--line);
  overflow: hidden;
}

.page-news .news-side__figure img {
  display: block;
  width: 100%;
  height: 148px;
  object-fit: cover;
}

/* ---------- 章节头 ---------- */
.page-news .news-section + .news-section {
  margin-top: clamp(40px, 6vw, 76px);
}

.page-news .news-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .news-head__num {
  flex: none;
  padding: 5px 9px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--amber);
}

.page-news .news-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(23px, 3.4vw, 34px);
  letter-spacing: -0.01em;
  color: var(--fog);
}

.page-news .news-head p {
  margin: 9px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 时间轴列表 ---------- */
.page-news .news-timeline {
  counter-reset: news-entry;
  border-top: 2px solid var(--line);
}

.page-news .news-item {
  counter-increment: news-entry;
  position: relative;
  display: grid;
  grid-template-columns: var(--news-rail) minmax(0, 1fr);
  gap: clamp(10px, 2vw, 22px);
  padding: clamp(16px, 3vw, 24px) 0 clamp(16px, 3vw, 24px) 14px;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--mint);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.28s ease;
}

.page-news .news-item:hover,
.page-news .news-item:focus-within {
  background: rgba(18, 26, 61, 0.62);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before {
  transform: scaleY(1);
}

.page-news .news-item__stamp {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .news-item__idx {
  font-size: 21px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-news .news-item__idx::before {
  content: counter(news-entry, decimal-leading-zero);
}

.page-news .news-item__time {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-item__title {
  margin: 10px 0 7px;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.4;
  font-weight: 700;
  color: var(--fog);
}

.page-news .news-item__excerpt {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-news .tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
}

.page-news .tag--ann { color: var(--mint); }
.page-news .tag--ver { color: var(--amber); }
.page-news .tag--obs { color: var(--rose); }
.page-news .tag--tip { color: var(--mist); }

.page-news .news-timeline__foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .news-inline-link {
  margin-left: 6px;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--mint-deep);
  transition: border-color 0.2s ease;
}

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

/* ---------- 奖池读数 ---------- */
.page-news .pool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-news .pool-copy__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
}

.page-news .pool-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .pool-points li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-news .pool-points__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--mint);
}

.page-news .pool-points strong {
  display: block;
  font-size: 15px;
  color: var(--fog);
}

.page-news .pool-points p {
  margin: 5px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .pool-figure {
  position: relative;
  margin: 0;
  border: var(--border) solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-news .pool-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-news .pool-figure__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--amber);
}

/* ---------- 版本迭代 ---------- */
.page-news .version-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-news .version-track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 4px 0 0 26px;
}

.page-news .version-track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(var(--mint), var(--line) 68%);
}

.page-news .version-item {
  position: relative;
  padding-bottom: clamp(20px, 3vw, 28px);
}

.page-news .version-item:last-child {
  padding-bottom: 0;
}

.page-news .version-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 5px;
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--mint);
  border-radius: 50%;
}

.page-news .version-item__year {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--rose);
}

.page-news .version-item__title {
  margin: 6px 0 5px;
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
}

.page-news .version-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-news .version-figure {
  position: relative;
  margin: 0;
  align-self: start;
  border: var(--border) solid var(--line);
  background: var(--panel);
}

.page-news .version-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-news .version-figure__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 10px;
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--fog);
  background: rgba(11, 16, 48, 0.86);
  border-top: 2px solid var(--rose);
}

/* ---------- 研究笔记 ---------- */
.page-news .notes-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 22px);
}

.page-news .note-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--panel);
  border: var(--border) solid var(--line);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-news .note-card:hover {
  border-color: var(--mint);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-news .note-card__tag {
  margin: 0;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-news .note-card h3 {
  margin: 0;
  font-size: clamp(16px, 2.2vw, 19px);
  line-height: 1.4;
  color: var(--fog);
}

.page-news .note-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .note-card__link {
  margin-top: auto;
  padding-top: 12px;
  font-size: 13px;
  color: var(--mint);
  text-decoration: none;
  border-top: 1px solid var(--line);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-news .note-card__link:hover,
.page-news .note-card__link:focus-visible {
  color: var(--fog);
  border-top-color: var(--mint);
}

/* ---------- 下一步 ---------- */
.page-news .next-links {
  display: grid;
  gap: 2px;
  background: var(--line);
  border: var(--border) solid var(--line);
}

.page-news .next-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--panel);
  text-decoration: none;
  transition: background 0.2s ease;
}

.page-news .next-link__label {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-news .next-link__text {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--fog);
}

.page-news .next-link__arrow {
  font-size: 16px;
  color: var(--mist);
  transition: transform 0.2s ease, color 0.2s ease;
}

.page-news .next-link:hover,
.page-news .next-link:focus-visible {
  background: rgba(39, 224, 176, 0.09);
}

.page-news .next-link:hover .next-link__arrow,
.page-news .next-link:focus-visible .next-link__arrow {
  transform: translateX(5px);
  color: var(--mint);
}

.page-news .news-top {
  margin: 26px 0 0;
  text-align: right;
}

.page-news .news-top__link {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-news .news-top__link:hover,
.page-news .news-top__link:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

  .page-news .note-card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 860px) {
  .page-news .pool-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  }

  .page-news .version-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-side-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-side__sticky {
    position: sticky;
    top: 92px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item::before,
  .page-news .news-side__link,
  .page-news .note-card,
  .page-news .next-link,
  .page-news .next-link__arrow {
    transition: none;
  }

  .page-news .note-card:hover {
    transform: none;
  }
}
<<<END>>>