.page-news {
  --news-rail-w: 250px;
  --news-gap: 28px;
  --news-line: 1px solid var(--c-line);
}

/* ---------- 首屏 ---------- */
.page-news__hero {
  padding-block: 28px 58px;
  background-color: var(--c-frost);
  background-image:
    radial-gradient(110% 80% at 92% -10%, rgba(49, 224, 208, 0.20), transparent 58%),
    linear-gradient(180deg, var(--c-frost) 0%, var(--c-ice) 100%);
}

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

.page-news__hero-grid {
  display: grid;
  gap: var(--news-gap);
}

.page-news h1 {
  margin: 0.3em 0 0.5em;
  font-family: var(--font-title);
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -0.012em;
  font-weight: 700;
  color: var(--c-text);
  max-width: 16em;
}

.page-news__lede {
  margin: 0;
  max-width: 44em;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-news__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-news__hero-aside {
  min-width: 0;
}

.page-news__readout {
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: var(--news-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-news__readout-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: var(--c-frost);
}

.page-news__readout-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-sea);
}

.page-news__readout-label {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 更新头条 ---------- */
.page-news__lead {
  background-image:
    radial-gradient(85% 70% at 8% 0%, rgba(49, 224, 208, 0.16), transparent 62%),
    linear-gradient(180deg, var(--c-sea) 0%, var(--c-deep) 100%);
}

.page-news__lead-grid {
  display: grid;
  gap: 32px;
}

.page-news__lead-media {
  min-width: 0;
}

.page-news__lead .media {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid rgba(183, 211, 232, 0.28);
}

.page-news__lead .media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__lead-caption {
  margin: 14px 0 0;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--c-neon-soft);
}

.page-news__lead-body h2 {
  margin: 0.25em 0 0.7em;
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.32;
  color: var(--c-frost);
}

.page-news__lead-body p {
  margin: 0;
  max-width: 44em;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(232, 241, 248, 0.82);
}

.page-news__lead-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
}

.page-news__lead-tags li {
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid rgba(143, 245, 236, 0.34);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--c-neon-soft);
}

/* ---------- 条目索引 ---------- */
.page-news__note {
  margin: 12px 0 0;
  max-width: 52em;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-news__layout {
  display: grid;
  gap: 28px;
  margin-top: 34px;
}

.page-news__rail {
  display: grid;
  gap: 22px;
  align-content: start;
  min-width: 0;
}

.page-news__rail-title {
  margin: 0 0 10px;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-route);
}

.page-news__cats {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news__cat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  font-size: 0.875rem;
  color: var(--c-text);
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.page-news__cat:hover {
  background: var(--c-frost);
  border-color: var(--c-line);
}

.page-news__cat--active {
  background: var(--c-sea);
  border-color: var(--c-sea);
  color: var(--c-frost);
}

.page-news__cat--active .page-news__cat-count {
  color: var(--c-neon);
}

.page-news__cat-count {
  font-size: 0.8125rem;
  color: var(--c-muted);
}

.page-news__rail-card {
  display: grid;
  gap: 10px;
  padding: 18px;
  background: var(--c-frost);
  border: var(--news-line);
  border-top: 2px solid var(--c-neon);
  border-radius: var(--radius-m);
}

.page-news__rail-card-title {
  margin: 0;
  font-family: var(--font-title);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-text);
}

.page-news__rail-card-text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-news__stream {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.page-news__item {
  min-width: 0;
  background: var(--c-frost);
  border: var(--news-line);
  border-radius: var(--radius-m);
  overflow: hidden;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-news__item:hover {
  border-color: var(--c-neon);
  box-shadow: var(--shadow-1);
  transform: translateY(-2px);
}

.page-news__item-media {
  border-bottom: var(--news-line);
}

.page-news__item-media .media {
  border-radius: 0;
}

.page-news__item-media .media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__item-body {
  display: grid;
  gap: 12px;
  padding: 20px;
}

.page-news__item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news__time {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 159, 69, 0.5);
  background: rgba(255, 159, 69, 0.16);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--c-sea);
}

.page-news__item-title {
  margin: 0;
  font-family: var(--font-title);
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-text);
}

.page-news__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

.page-news__trigger:hover,
.page-news__trigger:focus-visible {
  color: var(--c-route);
}

.page-news__item-summary {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-news__item .accordion__panel {
  padding-top: 4px;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--c-text);
}

.page-news__item .accordion__panel p {
  margin: 0 0 10px;
}

.page-news__item .accordion__panel p:last-child {
  margin-bottom: 0;
}

.page-news__item-link {
  display: inline-block;
  font-size: 0.875rem;
  color: var(--c-route);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news__item-link:hover {
  color: var(--c-sea);
  border-bottom-color: var(--c-sea);
}

/* ---------- 专题系列 ---------- */
.page-news__topics-grid {
  display: grid;
  gap: 34px;
  margin-top: 32px;
}

.page-news__topic-lead {
  min-width: 0;
}

.page-news__topic-lead .media {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: var(--news-line);
}

.page-news__topic-lead .media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news__topic-lead h3 {
  margin: 22px 0 10px;
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-text);
}

.page-news__topic-lead p {
  margin: 0 0 20px;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--c-muted);
}

.page-news__topic-list {
  display: grid;
  align-content: start;
  min-width: 0;
}

.page-news__topic {
  padding: 22px 0;
  border-top: var(--news-line);
}

.page-news__topic:last-child {
  border-bottom: var(--news-line);
}

.page-news__topic-kicker {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-route);
}

.page-news__topic h3 {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-text);
}

.page-news__topic p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-news__topic h3 + p {
  margin-top: 0;
}

/* ---------- 订阅 ---------- */
.page-news__subscribe {
  background-image:
    radial-gradient(80% 70% at 88% 10%, rgba(49, 224, 208, 0.18), transparent 62%),
    linear-gradient(200deg, var(--c-deep) 0%, var(--c-sea) 100%);
}

.page-news__subscribe-grid {
  display: grid;
  gap: 30px;
}

.page-news__subscribe h2 {
  margin: 0.25em 0 0.7em;
  font-family: var(--font-title);
  font-size: clamp(1.5rem, 3.4vw, 2.25rem);
  line-height: 1.32;
  color: var(--c-frost);
}

.page-news__subscribe-text {
  margin: 0;
  max-width: 42em;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(232, 241, 248, 0.82);
}

.page-news__subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-news__subscribe-card {
  display: grid;
  gap: 12px;
  padding: 24px;
  border-radius: var(--radius-m);
}

.page-news__subscribe-card-label {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-neon);
}

.page-news__subscribe-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--c-ice);
}

/* ---------- 时间怎么看 ---------- */
.page-news__reading-grid {
  display: grid;
  gap: 0;
  margin-top: 28px;
}

.page-news__reading-card {
  padding: 20px 0 22px;
  border-top: 2px solid var(--c-neon);
  border-bottom: var(--news-line);
}

.page-news__reading-key {
  margin: 0 0 8px;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  color: var(--c-sea);
}

.page-news__reading-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--c-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-news__reading-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 30px;
  }
}

@media (min-width: 780px) {
  .page-news__stream {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news__item--media {
    grid-column: 1 / -1;
  }

  .page-news__item--media {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news__item--media .page-news__item-media {
    border-bottom: 0;
    border-right: var(--news-line);
  }

  .page-news__item--media .page-news__item-media .media {
    height: 100%;
  }

  .page-news__layout {
    margin-top: 40px;
  }
}

@media (min-width: 900px) {
  .page-news__hero {
    padding-block: 36px 74px;
  }

  .page-news__hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
    gap: 52px;
  }

  .page-news__lead-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
    gap: 52px;
  }

  .page-news__topics-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 52px;
  }

  .page-news__subscribe-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: center;
    gap: 52px;
  }
}

@media (min-width: 960px) {
  .page-news__layout {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 44px;
  }

  .page-news__rail {
    position: sticky;
    top: 28px;
  }
}

@media (max-width: 779px) {
  .page-news__item--media .page-news__item-media .media img {
    aspect-ratio: 3 / 2;
    object-fit: cover;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news__item,
  .page-news__cat,
  .page-news__trigger,
  .page-news__item-link {
    transition: none;
  }

  .page-news__item:hover {
    transform: none;
  }
}
<<<END>>>
</main>