.page-news {
  --news-rail-width: 268px;
  --news-entry-ink: rgba(244, 241, 232, 0.82);
  --news-bg-a: rgba(11, 58, 46, 0.35);
  --news-bg-b: rgba(6, 35, 28, 0.55);
  --news-chart-bg: rgba(6, 35, 28, 0.7);
  overflow-x: clip;
  background: var(--yt-ink-900);
  color: var(--yt-paper-50);
}

.page-news img {
  max-width: 100%;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  padding-block: clamp(116px, 15vw, 176px) clamp(40px, 6vw, 72px);
  background:
    radial-gradient(900px 520px at 84% -14%, rgba(44, 90, 124, 0.42), transparent 64%),
    radial-gradient(680px 460px at 4% 6%, rgba(18, 112, 79, 0.3), transparent 62%),
    var(--yt-ink-900);
  isolation: isolate;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    rgba(169, 195, 214, 0.05) 0 1px,
    transparent 1px 14px
  );
  pointer-events: none;
  z-index: 0;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 56px);
  align-items: end;
}

.page-news .news-hero__title {
  max-width: 16ch;
  margin: 20px 0 22px;
  color: var(--yt-paper-50);
  font-family: var(--yt-font-head);
  font-size: clamp(36px, 7vw, 72px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.page-news .news-hero__lead {
  max-width: 60ch;
  color: var(--news-entry-ink);
  font-size: 17px;
  line-height: 1.78;
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 18px 24px;
  margin: 0;
  padding: 24px 0 0;
  list-style: none;
  border-top: 1px solid var(--yt-line);
}

.page-news .news-metric__value {
  display: block;
  color: var(--yt-lime-400);
  font-family: var(--yt-font-mono);
  font-size: clamp(24px, 3.2vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.page-news .news-metric__label {
  display: block;
  margin-top: 6px;
  color: var(--yt-steel-200);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-news .news-hero__media {
  position: relative;
  margin: 0;
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  clip-path: var(--yt-cut);
  filter: saturate(0.82) contrast(1.08) brightness(0.9);
}

.page-news .news-hero__media::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 76px;
  height: 3px;
  background: var(--yt-orange-500);
  z-index: 1;
}

@media (min-width: 1000px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

/* ---------- 观察工作台 ---------- */

.page-news .news-desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-news .news-desk__rail {
  align-self: start;
}

.page-news .news-desk__list {
  display: flex;
  gap: 8px;
  padding: 0 0 10px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-tab {
  position: relative;
  display: flex;
  flex: 0 0 auto;
  align-items: baseline;
  gap: 10px;
  width: auto;
  padding: 12px 16px;
  scroll-snap-align: start;
  background: transparent;
  border: 0;
  color: var(--yt-steel-200);
  font: inherit;
  font-size: 15px;
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.page-news .news-tab::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--yt-line-soft);
  transition: background-color 0.25s ease, width 0.25s ease, height 0.25s ease;
}

.page-news .news-tab:hover {
  color: var(--yt-paper-50);
}

.page-news .news-tab[aria-selected="true"] {
  background: var(--yt-ink-700);
  color: var(--yt-paper-50);
}

.page-news .news-tab[aria-selected="true"]::before {
  background: var(--yt-orange-500);
}

.page-news .news-tab__index {
  color: var(--yt-orange-500);
  font-family: var(--yt-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-news .news-tab__count {
  margin-left: auto;
  color: var(--yt-steel-200);
  font-family: var(--yt-font-mono);
  font-size: 12px;
}

.page-news .news-panel {
  border-top: 1px solid var(--yt-line);
}

.page-news .news-panel:focus-visible {
  outline: 2px solid var(--yt-orange-500);
  outline-offset: 2px;
}

@media (min-width: 960px) {
  .page-news .news-desk {
    grid-template-columns: var(--news-rail-width) minmax(0, 1fr);
    gap: 52px;
  }

  .page-news .news-desk__rail {
    position: sticky;
    top: calc(var(--yt-header-h-compact) + 28px);
  }

  .page-news .news-desk__list {
    flex-direction: column;
    gap: 6px;
    padding-bottom: 0;
    overflow: visible;
    scroll-snap-type: none;
  }

  .page-news .news-tab {
    width: 100%;
    padding: 14px 16px;
  }

  .page-news .news-tab::before {
    top: 0;
    right: auto;
    bottom: 0;
    width: 2px;
    height: auto;
  }

  .page-news .news-tab[aria-selected="true"]::before {
    width: 3px;
  }
}

/* ---------- 条目 ---------- */

.page-news .news-entry {
  position: relative;
  padding: clamp(22px, 3vw, 34px) clamp(16px, 2.4vw, 30px);
  border-bottom: 1px solid var(--yt-line-soft);
  transition: background-color 0.3s ease;
}

.page-news .news-entry:nth-child(odd) {
  background: var(--news-bg-a);
}

.page-news .news-entry:nth-child(even) {
  background: var(--news-bg-b);
}

.page-news .news-entry:hover {
  background: rgba(18, 112, 79, 0.32);
}

.page-news .news-entry::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--yt-orange-500), var(--yt-lime-400), transparent);
  transition: width 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
  pointer-events: none;
}

.page-news .news-entry:hover::after,
.page-news .news-entry:focus-within::after {
  width: 100%;
}

.page-news .news-entry__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-bottom: 14px;
}

.page-news .news-entry__time {
  color: var(--yt-steel-200);
  font-family: var(--yt-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-news .news-entry__title {
  margin: 0 0 12px;
  color: var(--yt-paper-50);
  font-family: var(--yt-font-head);
  font-size: clamp(19px, 2.1vw, 23px);
  font-weight: 800;
  line-height: 1.34;
  letter-spacing: -0.01em;
}

.page-news .news-entry--lead .news-entry__title {
  font-size: clamp(25px, 3.4vw, 36px);
  line-height: 1.2;
}

.page-news .news-entry__text {
  max-width: 64ch;
  margin: 0 0 14px;
  color: var(--news-entry-ink);
  font-size: 16px;
  line-height: 1.78;
}

.page-news .news-entry__text:last-child {
  margin-bottom: 0;
}

.page-news .news-entry__points {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-entry__points li {
  position: relative;
  padding-left: 22px;
  color: var(--news-entry-ink);
  font-size: 15px;
  line-height: 1.72;
}

.page-news .news-entry__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 2px;
  background: var(--yt-orange-500);
}

.page-news .news-entry__figure {
  margin: 0 0 20px;
}

.page-news .news-entry__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
}

.page-news .news-entry__figure--landscape img {
  aspect-ratio: 4 / 3;
}

.page-news .news-entry__figure--wide img {
  aspect-ratio: 12 / 7;
}

.page-news .news-entry__figure--portrait img {
  aspect-ratio: 8 / 9;
}

.page-news .news-entry__body {
  min-width: 0;
}

@media (min-width: 760px) {
  .page-news .news-entry--media {
    display: grid;
    grid-template-columns: minmax(0, 210px) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }

  .page-news .news-entry--media .news-entry__figure {
    margin-bottom: 0;
  }

  .page-news .news-entry--media-right {
    grid-template-columns: minmax(0, 1fr) minmax(0, 240px);
  }
}

/* ---------- 数据图表 ---------- */

.page-news .news-chart {
  margin: 26px 0 22px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--news-chart-bg);
  border-left: 3px solid var(--yt-orange-500);
}

.page-news .news-chart__title {
  margin: 0 0 12px;
  color: var(--yt-paper-50);
  font-family: var(--yt-font-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-news .news-chart__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  color: var(--yt-steel-200);
  font-size: 13px;
}

.page-news .news-chart__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.page-news .news-chart__legend-item::before {
  content: "";
  width: 13px;
  height: 8px;
}

.page-news .news-chart__legend-item--shot::before {
  background: var(--yt-orange-500);
}

.page-news .news-chart__legend-item--tackle::before {
  background: var(--yt-steel-600);
}

.page-news .news-chart__grid {
  display: grid;
  gap: 18px;
}

.page-news .news-chart__row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}

.page-news .news-chart__city {
  color: var(--yt-paper-50);
  font-family: var(--yt-font-head);
  font-size: 15px;
  font-weight: 700;
}

.page-news .news-chart__bars {
  display: grid;
  gap: 7px;
}

.page-news .news-chart__track {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 34px;
  gap: 10px;
  align-items: center;
}

.page-news .news-chart__fill {
  display: block;
  width: var(--w, 0%);
  height: 10px;
  transform-origin: left center;
  animation: news-bar-grow 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

.page-news .news-chart__fill--shot {
  background: linear-gradient(90deg, var(--yt-orange-500), var(--yt-orange-300));
}

.page-news .news-chart__fill--tackle {
  background: linear-gradient(90deg, var(--yt-steel-600), var(--yt-steel-200));
}

.page-news .news-chart__val {
  color: var(--yt-paper-50);
  font-family: var(--yt-font-mono);
  font-size: 14px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

@keyframes news-bar-grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---------- 固定专题 ---------- */

.page-news .news-series {
  background:
    linear-gradient(180deg, rgba(11, 58, 46, 0.5), rgba(6, 35, 28, 0.9)),
    var(--yt-ink-900);
  border-top: 1px solid var(--yt-line-soft);
}

.page-news .news-series__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--yt-line-soft);
}

.page-news .news-series__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 24px 0;
  border-top: 1px solid var(--yt-line-soft);
}

.page-news .news-series__no {
  color: var(--yt-orange-500);
  font-family: var(--yt-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-news .news-series__name {
  margin: 0;
  color: var(--yt-paper-50);
  font-family: var(--yt-font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-news .news-series__desc {
  max-width: 56ch;
  margin: 0;
  color: var(--news-entry-ink);
  font-size: 15px;
  line-height: 1.72;
}

.page-news .news-series__slot {
  color: var(--yt-lime-400);
  font-family: var(--yt-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

@media (min-width: 860px) {
  .page-news .news-series__item {
    grid-template-columns: 56px minmax(0, 210px) minmax(0, 1fr) 168px;
    gap: 24px;
    align-items: baseline;
    padding: 28px 0;
  }

  .page-news .news-series__slot {
    text-align: right;
  }
}

/* ---------- 收尾 ---------- */

.page-news .news-cta {
  padding-block: clamp(44px, 6vw, 68px);
  background: linear-gradient(135deg, var(--yt-ink-700), var(--yt-ink-900));
  border-top: 1px solid var(--yt-line);
}

.page-news .news-cta__inner {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-news .news-cta__copy h2 {
  margin: 0 0 10px;
  color: var(--yt-paper-50);
}

.page-news .news-cta__copy p {
  max-width: 58ch;
  margin: 0;
  color: var(--news-entry-ink);
  font-size: 16px;
  line-height: 1.75;
}

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

@media (min-width: 860px) {
  .page-news .news-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news .news-entry,
  .page-news .news-entry::after,
  .page-news .news-tab,
  .page-news .news-tab::before {
    transition: none;
  }

  .page-news .news-chart__fill {
    animation: none;
  }
}
<<<END>>>

现在校验一下几个关键要求是否都满足：

- 只有一个 `h1`，放在首屏。✓
- 面包屑用了共享的 `yt-crumbs`。✓
- 所有页面 CSS 都限定在 `.page-news` 作用域内。✓
- 没有定义 `:root`、`html`、`body` 这类共享选择器。✓
- 引用的 CSS 变量都来自站点工具包。✓
- 用了 4 张图片，正好是目标数量：一张 1600×800 首屏图，一张 800×600 条目缩略图，一张 1200×700 数据复盘横图，一张 800×900 场馆走访竖图。图片占位符的 `h`、`w` 顺序和 `width`、`height` 属性完全一致。✓
- 站内链接只用了合法路由：`/`、`/services/`、`/faq/`。✓
- 用到了 `[data-tabs]` 这个交互协议。✓
- 数字都写成可见文本，没有用 `data-count` 之类的空值占位符。✓
- 所有可见文案都避开了内部创作术语和内容治理词汇。✓
- 品牌名“优德看台”在首屏导语里自然出现。✓
- 有 `prefers-reduced-motion` 降级。✓
- 有移动端优先的媒体查询。✓
- 没有外部链接、表单、脚本或 iframe。✓

.page-news {
  --w: 1rem;
}