.page-news {
  --news-line: #1B2E52;
  --news-glass: rgba(13, 26, 49, .72);
  --news-soft: rgba(22, 227, 210, .08);
  position: relative;
  padding: 104px 16px 80px;
  color: var(--text);
  overflow-x: clip;
}

.page-news::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 640px;
  background:
    radial-gradient(120% 100% at 16% 0%, rgba(22, 227, 210, .10), transparent 62%),
    radial-gradient(90% 80% at 88% 4%, rgba(233, 180, 76, .07), transparent 60%);
  pointer-events: none;
}

.page-news .news-shell {
  position: relative;
  z-index: 1;
  max-width: var(--shell);
  margin: 0 auto;
}

/* ---------- 面包屑 ---------- */
.page-news .xt-crumbs {
  margin-bottom: 30px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-bottom: 44px;
  border-bottom: 1px solid var(--news-line);
}

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

.page-news .news-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(34px, 7.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--text-strong);
  max-width: 15em;
}

.page-news .news-hero__title em {
  font-style: normal;
  color: var(--cyan);
  display: block;
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 42em;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--mist);
}

.page-news .news-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 44px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 108px;
}

.page-news .news-hero__num {
  font-size: clamp(24px, 4.6vw, 34px);
  font-weight: 600;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -.01em;
}

.page-news .news-hero__label {
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  padding: 56px 0 0;
}

.page-news .news-head {
  display: block;
  margin-bottom: 30px;
}

.page-news .news-head__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--text-strong);
}

.page-news .news-head__note {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图框 ---------- */
.page-news .news-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  background: var(--panel);
}

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

.page-news .news-frame--digest { aspect-ratio: 760 / 460; }
.page-news .news-frame--banner { aspect-ratio: 720 / 400; }
.page-news .news-frame--cover  { aspect-ratio: 840 / 500; }
.page-news .news-frame--series { aspect-ratio: 680 / 420; }

.page-news .news-digest__figure,
.page-news .news-banner,
.page-news .news-cover,
.page-news .news-series-visual {
  margin: 0 0 34px;
}

/* ---------- 本期摘要 ---------- */
.page-news .news-digest {
  display: grid;
  gap: 30px;
}

.page-news .news-digest__quote {
  margin: 0 0 20px;
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
  font-size: clamp(17px, 2.6vw, 21px);
  line-height: 1.85;
  color: var(--text-strong);
}

.page-news .news-digest__body p {
  margin: 0 0 1.1em;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text);
  max-width: 62ch;
}

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

/* ---------- 主题双栏 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

/* 左侧轨道 */
.page-news .news-tablist {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  background: var(--news-glass);
  overflow: hidden;
  margin-bottom: 26px;
}

.page-news .news-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  border-left: 2px solid transparent;
  border-bottom: 1px solid var(--news-line);
  background: transparent;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-14);
  text-align: left;
  cursor: pointer;
  transition: background-color 120ms var(--ease), border-color 120ms var(--ease), color 120ms var(--ease);
}

.page-news .news-tab:last-child {
  border-bottom: 0;
}

.page-news .news-tab:hover {
  background: rgba(22, 227, 210, .06);
  color: var(--text-strong);
}

.page-news .news-tab[aria-selected="true"] {
  border-left-color: var(--cyan);
  background: var(--news-soft);
  color: var(--text-strong);
}

.page-news .news-tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .news-tab__count {
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-news .news-tab[aria-selected="true"] .news-tab__count {
  color: var(--gold);
}

.page-news .news-rail__nav {
  padding: 20px 16px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  background: var(--panel);
  margin-bottom: 26px;
}

.page-news .news-rail__title {
  margin: 0 0 14px;
  font-size: var(--fs-12);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .news-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .news-rail__link {
  display: block;
  padding: 9px 0 9px 14px;
  border-left: 1px solid var(--news-line);
  color: var(--text);
  font-size: var(--fs-14);
  text-decoration: none;
  transition: border-color 120ms var(--ease), color 120ms var(--ease), padding-left 120ms var(--ease);
}

.page-news .news-rail__link:hover {
  border-left-color: var(--cyan);
  color: var(--cyan);
  padding-left: 18px;
}

.page-news .news-rail__aside {
  padding: 18px 16px;
  border: 1px solid var(--news-line);
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--panel);
}

.page-news .news-rail__aside-k {
  margin: 0 0 8px;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-news .news-rail__aside-v {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--mist);
}

/* 右侧时间线 */
.page-news .news-panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 8px;
  border-radius: 4px;
}

.page-news .news-era {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 4px;
  padding: 10px 0;
  border-bottom: 1px solid var(--cyan);
}

.page-news .news-era:not(:first-child) {
  margin-top: 34px;
}

.page-news .news-era__ver {
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: .04em;
}

.page-news .news-era__label {
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--mist);
}

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

.page-news .news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 24px 0;
  border-bottom: 1px solid var(--news-line);
  transition: background-color 120ms var(--ease);
}

.page-news .news-item:hover {
  background: rgba(22, 227, 210, .035);
}

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

.page-news .news-item__ver {
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--gold);
  letter-spacing: .02em;
}

.page-news .news-item__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 25px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--text-strong);
}

.page-news .news-item__desc {
  margin: 0 0 12px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--text);
  max-width: 62ch;
}

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

.page-news .news-item__scope-k {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 7px;
  border: 1px solid var(--news-line);
  border-radius: 3px;
  font-size: var(--fs-12);
  color: var(--cyan);
  letter-spacing: .08em;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series-wrap {
  display: grid;
  gap: 30px;
}

.page-news .news-series-visual {
  margin: 0;
}

.page-news .news-series-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--news-line);
}

.page-news .news-series {
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-series__sum {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color 120ms var(--ease);
}

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

.page-news .news-series__sum:hover {
  background: rgba(22, 227, 210, .04);
}

.page-news .news-series__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--cyan);
}

.page-news .news-series[open] .news-series__sum::after {
  content: "–";
}

.page-news .news-series__num {
  font-size: var(--fs-14);
  color: var(--gold);
  letter-spacing: .04em;
}

.page-news .news-series__name {
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 26px);
  letter-spacing: -.01em;
  color: var(--text-strong);
}

.page-news .news-series__count {
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-news .news-series__body {
  padding: 0 4px 24px;
}

.page-news .news-series__body p {
  margin: 0 0 14px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
  max-width: 58ch;
}

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

.page-news .news-series__links a {
  display: inline-block;
  padding-left: 16px;
  position: relative;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-news .news-series__links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 6px;
  height: 1px;
  background: var(--cyan-deep);
}

.page-news .news-series__links a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 回看与提醒 ---------- */
.page-news .news-revisit {
  display: grid;
  gap: 1px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  background: var(--news-line);
  overflow: hidden;
}

.page-news .news-revisit__col {
  padding: 28px 22px;
  background: var(--panel);
}

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

.page-news .news-revisit__t {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 25px);
  line-height: 1.3;
  color: var(--text-strong);
}

.page-news .news-revisit__d {
  margin: 0 0 20px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--mist);
  max-width: 54ch;
}

.page-news .news-revisit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news {
    padding: 112px 24px 88px;
  }

  .page-news .news-item {
    grid-template-columns: 116px minmax(0, 1fr);
    gap: 26px;
    padding: 26px 0;
  }

  .page-news .news-item__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-news .news-digest {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 36px;
  }

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

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

  .page-news .news-series-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 40px;
  }

  .page-news .news-series-visual {
    position: sticky;
    top: 112px;
  }
}

@media (min-width: 900px) {
  .page-news {
    padding: 126px 24px 112px;
  }

  .page-news .news-layout {
    grid-template-columns: 286px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 108px;
  }

  .page-news .news-digest {
    grid-template-columns: 760px minmax(0, 1fr);
  }

  .page-news .news-banner {
    max-width: 720px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-tab,
  .page-news .news-item,
  .page-news .news-rail__link,
  .page-news .news-series__sum,
  .page-news .news-series__links a {
    transition-duration: 120ms;
  }
}