.page-news {
  --news-rule: 1px solid var(--surface-line-soft);
  --news-rail: 320px;
  background: var(--ink-900);
  color: var(--text-primary);
  overflow-x: hidden;
}

.page-news a {
  color: inherit;
}

/* ---------- 面包屑 ---------- */
.page-news .bvt-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: calc(var(--header-h) + 22px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}

.page-news .bvt-crumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.page-news .bvt-crumb a:hover {
  color: var(--acid-cyan);
}

.page-news .bvt-crumb [aria-current="page"] {
  color: var(--text-primary);
}

/* ---------- 首屏框景 ---------- */
.page-news .news-hero {
  position: relative;
  padding-bottom: 34px;
}

.page-news .news-hero__inner {
  display: grid;
  gap: 30px;
  padding-top: 20px;
}

.page-news .news-hero__title {
  max-width: 15em;
  margin: 12px 0 16px;
}

.page-news .news-hero__lede {
  max-width: 62ch;
  color: var(--text-muted);
  font-size: 15px;
}

.page-news .news-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-hero__facts li {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 1px solid var(--surface-line);
}

.page-news .news-hero__factKey {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--acid-cyan);
}

.page-news .news-hero__factVal {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-news .news-hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--surface-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--charcoal-700);
}

.page-news .news-hero__figure img {
  width: 100%;
  height: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  opacity: 0.58;
  display: block;
}

.page-news .news-hero__figure::after {
  content: "";
  position: absolute;
  inset: auto 18px 16px auto;
  width: 30px;
  height: 3px;
  background: var(--orange-500);
  opacity: 0.9;
}

.page-news .news-hero__scale {
  margin-top: 34px;
  height: 14px;
  border-top: var(--news-rule);
  background-image: repeating-linear-gradient(
    90deg,
    var(--surface-line) 0 1px,
    transparent 1px 28px
  );
  background-size: auto 9px;
  background-repeat: repeat-x;
  background-position: 0 0;
}

/* ---------- 栏目说明 ---------- */
.page-news .news-about {
  padding: 54px 0 46px;
}

.page-news .news-about__body p {
  max-width: 66ch;
  color: var(--text-muted);
  font-size: 15px;
  margin: 0 0 16px;
}

.page-news .news-about__body h2 {
  margin: 12px 0 18px;
}

.page-news .news-about__facts {
  margin: 26px 0 0;
  padding: 20px 0 0;
  border-top: var(--news-rule);
  display: grid;
  gap: 14px;
}

.page-news .news-about__facts div {
  display: grid;
  gap: 4px;
}

.page-news .news-about__facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
}

.page-news .news-about__facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
}

.page-news .news-about__figure {
  margin: 8px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--surface-line);
}

.page-news .news-about__figure img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: 0.72;
  display: block;
}

/* ---------- 按分类浏览 ---------- */
.page-news .news-cats {
  padding: 50px 0 54px;
  background: var(--ink-800);
  border-top: var(--news-rule);
  border-bottom: var(--news-rule);
}

.page-news .news-cats__intro {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 62ch;
}

.page-news .news-cats__tabs {
  margin-top: 30px;
  display: grid;
  gap: 26px;
}

.page-news .news-cats__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .news-cats__tab {
  display: flex;
  flex-direction: column;
  gap: 9px;
  width: 100%;
  text-align: left;
  padding: 13px 14px 13px 16px;
  background: transparent;
  border: 0;
  border-left: 2px solid var(--surface-line);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 400;
  cursor: pointer;
  transition:
    color 240ms var(--ease),
    border-color 240ms var(--ease),
    background-color 240ms var(--ease);
}

.page-news .news-cats__tab:hover {
  color: var(--text-primary);
  border-left-color: var(--legacy-blue);
}

.page-news .news-cats__tab[aria-selected="true"] {
  color: var(--text-primary);
  border-left-color: var(--acid-cyan);
  background-image: linear-gradient(
    90deg,
    rgba(53, 242, 192, 0.09),
    rgba(53, 242, 192, 0) 74%
  );
}

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

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

.page-news .news-cats__count {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
}

.page-news .news-cats__bar {
  display: block;
  height: 3px;
  border-radius: 999px;
  background: var(--surface-line-soft);
  overflow: hidden;
}

.page-news .news-cats__barFill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--legacy-blue);
  transition: background-color 240ms var(--ease);
}

.page-news .news-cats__tab[aria-selected="true"] .news-cats__barFill {
  background: var(--acid-cyan);
}

.page-news .news-cats__panels {
  min-height: 220px;
}

.page-news .news-cats__panel {
  padding: 20px 0 0;
  border-top: var(--news-rule);
}

.page-news .news-cats__panel:focus-visible {
  outline: 2px solid var(--acid-cyan);
  outline-offset: 6px;
}

.page-news .news-cats__panelLead {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.28rem;
  line-height: 1.35;
  color: var(--text-primary);
}

.page-news .news-cats__panelBody {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-news .news-cats__fit {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--text-faint);
}

.page-news .news-cats__fitKey {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid var(--cyan-dim);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--acid-cyan);
}

.page-news .news-cats__panelLink {
  display: inline-flex;
}

/* ---------- 最新条目 ---------- */
.page-news .news-list {
  padding: 52px 0 50px;
}

.page-news .news-list__lede {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 60ch;
}

.page-news .news-list__items {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-news .news-item {
  border-top: var(--news-rule);
}

.page-news .news-item:last-child {
  border-bottom: var(--news-rule);
}

.page-news .news-item__summary {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 14px;
  gap: 6px 14px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-item__summary:hover .news-item__title {
  color: var(--orange-pulse);
}

.page-news .news-item__summary:focus-visible {
  outline: 2px solid var(--acid-cyan);
  outline-offset: 4px;
}

.page-news .news-item__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-faint);
  padding-top: 5px;
}

.page-news .news-item__main {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.page-news .news-item__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--text-primary);
  transition: color 200ms var(--ease);
}

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

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-faint);
}

.page-news .news-item__state {
  width: 9px;
  height: 9px;
  margin-top: 9px;
  border-radius: 50%;
  border: 1px solid var(--blueprint-line);
  transition:
    background-color 240ms var(--ease),
    border-color 240ms var(--ease);
}

.page-news .news-item__detail[open] .news-item__state {
  background: var(--acid-cyan);
  border-color: var(--acid-cyan);
}

.page-news .news-item__body {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding: 52px 0 54px;
  border-top: var(--news-rule);
}

.page-news .news-series__lede {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 60ch;
}

.page-news .news-series__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 22px 0 26px;
}

.page-news .news-series__jump a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--surface-line);
}

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

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

.page-news .news-series__item {
  padding: 22px 0;
  border-top: var(--news-rule);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-news .news-series__item:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-news .news-series__range {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--legacy-blue);
}

.page-news .news-series__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  line-height: 1.35;
  color: var(--text-primary);
}

.page-news .news-series__body {
  margin: 0 0 10px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-news .news-series__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-faint);
}

.page-news .news-series__figure {
  margin: 24px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--surface-line);
}

.page-news .news-series__figure img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: 0.62;
  display: block;
}

/* ---------- 订阅与回看 ---------- */
.page-news .news-follow {
  padding: 52px 0 70px;
  background: var(--ink-800);
  border-top: var(--news-rule);
}

.page-news .news-follow__figure {
  margin: 0 0 26px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--surface-line);
}

.page-news .news-follow__figure img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: 0.6;
  display: block;
}

.page-news .news-follow__body p {
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
  margin: 14px 0 0;
}

.page-news .news-follow__routes {
  list-style: none;
  margin: 24px 0 0;
  padding: 18px 0 0;
  border-top: var(--news-rule);
  display: grid;
  gap: 12px;
}

.page-news .news-follow__routes a {
  display: inline-block;
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--surface-line);
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

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

.page-news .news-follow__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 平板 ---------- */
@media (min-width: 768px) {
  .page-news .news-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .news-about__facts div {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .page-news .news-item__summary {
    grid-template-columns: 62px minmax(0, 1fr) 16px;
    padding: 22px 0;
  }

  .page-news .news-item__body {
    padding-left: 76px;
  }

  .page-news .news-cats__tabs {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-news .news-series__list {
    padding-right: 20px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1080px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: end;
    padding-top: 30px;
  }

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

  .page-news .news-about__grid {
    align-items: start;
  }

  .page-news .news-about__figure {
    margin-top: 34px;
  }

  .page-news .news-cats__tabs {
    grid-template-columns: minmax(0, 272px) minmax(0, 1fr);
    gap: 56px;
  }

  .page-news .news-cats__panels {
    min-height: 240px;
  }

  .page-news .news-series__figure {
    margin-top: 6px;
  }

  .page-news .news-follow__grid {
    align-items: center;
  }

  .page-news .news-follow__figure {
    margin: 0;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-cats__tab,
  .page-news .news-item__title,
  .page-news .news-item__state,
  .page-news .news-cats__barFill,
  .page-news .news-follow__routes a {
    transition: none;
  }
}