.page-news {
  --news-rail: 208px;
  --news-line-soft: rgba(61, 76, 94, 0.18);
  --news-line-dark: rgba(143, 163, 189, 0.22);
  background: var(--c-deep);
  color: var(--c-white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  background: var(--c-deep);
  padding: 32px 0 44px;
}

.page-news .news-hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-news .news-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.42;
}

.page-news .news-hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 26, 49, 0.62) 0%, rgba(10, 26, 49, 0.88) 58%, var(--c-deep) 100%),
    linear-gradient(96deg, rgba(10, 26, 49, 0.94) 12%, rgba(123, 92, 255, 0.18) 78%, rgba(34, 224, 206, 0.14) 100%);
}

.page-news .news-hero__inner {
  position: relative;
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(38px, 11vw, 76px);
  line-height: 0.98;
  color: var(--c-white);
}

.page-news .news-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 246, 251, 0.82);
}

.page-news .news-hero__facts {
  margin: 32px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--news-line-dark);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
}

.page-news .news-fact dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-grid);
  margin: 0 0 6px;
}

.page-news .news-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-white);
}

.page-news .news-fact dd .num {
  color: var(--c-cyan);
}

/* ---------- 专栏导览 ---------- */

.page-news .news-guide-wrap {
  position: relative;
  padding-top: 8px;
}

.page-news .news-guide-head {
  max-width: 44ch;
  margin: 0 0 28px;
}

.page-news .news-guide-head__title {
  margin: 0;
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.24;
  color: var(--c-white);
}

.page-news .news-guide-head__sub {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 246, 251, 0.68);
}

.page-news .news-guide {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--news-line-dark);
}

.page-news .news-guide__item {
  position: relative;
  padding: 22px 0 22px 56px;
  border-bottom: 1px solid var(--news-line-dark);
}

.page-news .news-guide__no {
  position: absolute;
  left: 0;
  top: 22px;
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: rgba(34, 224, 206, 0.5);
}

.page-news .news-guide__title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-news .news-guide__desc {
  margin: 8px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 246, 251, 0.7);
}

.page-news .news-guide__cadence {
  margin: 12px 0 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-grid);
}

.page-news .news-guide__dot {
  width: 6px;
  height: 6px;
  background: var(--c-green);
  display: inline-block;
}

/* ---------- 最近更新条目 ---------- */

.page-news .news-entries {
  color: var(--c-ink);
}

.page-news .news-entries__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .news-entries__railTitle {
  margin: 6px 0 18px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--c-deep);
  line-height: 1.24;
}

.page-news .news-tags {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-ink);
  background: transparent;
  white-space: nowrap;
}

.page-news .news-tag .num {
  font-size: 12px;
  color: var(--c-grid);
}

.page-news .news-tag.is-on {
  border-color: var(--c-orange);
  color: var(--c-deep);
  background: rgba(255, 122, 43, 0.12);
  font-weight: 700;
}

.page-news .news-tag.is-on .num {
  color: var(--c-orange);
}

.page-news .news-entries__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(61, 76, 94, 0.72);
  border-left: 2px solid rgba(34, 224, 206, 0.5);
  padding-left: 12px;
}

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

.page-news .entry {
  position: relative;
  padding: 20px 0 20px 44px;
  border-bottom: 1px solid var(--news-line-soft);
  transition: background-color 0.2s ease, padding-left 0.2s ease;
}

.page-news .entry__index {
  position: absolute;
  left: 0;
  top: 20px;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: rgba(61, 76, 94, 0.16);
  transition: color 0.2s ease, transform 0.2s ease;
}

.page-news .entry__meta {
  margin: 0 0 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .entry__time {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.03em;
  color: rgba(61, 76, 94, 0.66);
}

.page-news .entry__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--c-deep);
}

.page-news .entry__excerpt {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  background: rgba(255, 122, 43, 0.05);
}

.page-news .entry:hover .entry__index,
.page-news .entry:focus-within .entry__index {
  color: var(--c-orange);
  transform: translateX(2px);
}

/* ---------- 版本时间轴 ---------- */

.page-news .news-timeline {
  overflow: hidden;
}

.page-news .news-timeline__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .news-timeline__title {
  margin: 10px 0 0;
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.24;
  color: var(--c-white);
}

.page-news .news-timeline__lead {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 246, 251, 0.72);
}

.page-news .news-timeline__figure {
  margin: 0;
  border: 1px solid var(--news-line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(10, 26, 49, 0.6);
}

.page-news .news-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  opacity: 0.85;
}

.page-news .news-timeline__caption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--c-grid);
  border-top: 1px solid var(--news-line-dark);
}

.page-news .news-timeline__scroller {
  margin-top: 36px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--news-line-dark);
  border-bottom: 1px solid var(--news-line-dark);
  scrollbar-color: var(--c-cyan) rgba(143, 163, 189, 0.15);
  scrollbar-width: thin;
}

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

.page-news .news-timeline__scroller::-webkit-scrollbar {
  height: 6px;
}

.page-news .news-timeline__scroller::-webkit-scrollbar-track {
  background: rgba(143, 163, 189, 0.12);
}

.page-news .news-timeline__scroller::-webkit-scrollbar-thumb {
  background: var(--c-cyan);
}

.page-news .news-timeline__track {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0;
  width: max-content;
  min-width: 100%;
}

.page-news .tl-node {
  position: relative;
  flex: 0 0 auto;
  width: 250px;
  padding: 34px 22px 30px 0;
  scroll-snap-align: start;
}

.page-news .tl-node::after {
  content: "";
  position: absolute;
  top: 46px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--news-line-dark);
}

.page-news .tl-node:last-child::after {
  right: 22px;
  background: linear-gradient(90deg, var(--news-line-dark), transparent);
}

.page-news .tl-node__ver {
  position: relative;
  z-index: 1;
  display: inline-block;
  padding: 4px 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-deep);
  background: var(--c-cyan);
  border-radius: var(--radius);
  letter-spacing: 0.02em;
}

.page-news .tl-node__dot {
  position: relative;
  z-index: 1;
  display: block;
  width: 9px;
  height: 9px;
  margin: 14px 0 0;
  background: var(--c-orange);
  transform: rotate(45deg);
}

.page-news .tl-node__title {
  margin: 16px 0 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--c-white);
}

.page-news .tl-node__desc {
  margin: 8px 0 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 246, 251, 0.66);
}

/* ---------- 专题系列 ---------- */

.page-news .news-topics {
  color: var(--c-ink);
}

.page-news .news-topics__head {
  max-width: 46ch;
  margin: 0 0 28px;
}

.page-news .news-topics__title {
  margin: 0;
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.24;
  color: var(--c-deep);
}

.page-news .news-topics__sub {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(61, 76, 94, 0.78);
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-news .topic {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--news-line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-news .topic__figure {
  margin: 0;
  overflow: hidden;
  background: var(--c-stand);
}

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

.page-news .topic__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.page-news .topic__meta {
  margin: 0 0 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(61, 76, 94, 0.66);
}

.page-news .topic__meta .num {
  color: var(--c-orange);
  font-weight: 700;
}

.page-news .topic__title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--c-deep);
}

.page-news .topic__desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-news .topic__link {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--news-line-soft);
  margin-top: auto;
}

.page-news .topic__link a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--c-orange);
  padding-bottom: 2px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news .topic__link a:hover,
.page-news .topic__link a:focus-visible {
  color: var(--c-orange);
}

/* ---------- 继续深入 ---------- */

.page-news .news-more {
  position: relative;
}

.page-news .news-more__head {
  max-width: 48ch;
  margin: 0 0 28px;
}

.page-news .news-more__title {
  margin: 0;
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.24;
  color: var(--c-white);
}

.page-news .news-more__sub {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(242, 246, 251, 0.7);
}

.page-news .news-more__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--news-line-dark);
  border: 1px solid var(--news-line-dark);
}

.page-news .more-card {
  position: relative;
  display: block;
  padding: 24px 20px 22px;
  background: var(--c-deep);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.page-news .more-card:hover,
.page-news .more-card:focus-visible {
  background: var(--c-stand);
}

.page-news .more-card__no {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-cyan);
  margin: 0 0 12px;
}

.page-news .more-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-news .more-card__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(242, 246, 251, 0.68);
}

.page-news .more-card__go {
  display: block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--c-orange);
  transition: transform 0.2s ease;
}

.page-news .more-card:hover .more-card__go,
.page-news .more-card:focus-visible .more-card__go {
  transform: translateX(5px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .news-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-guide {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }

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

@media (min-width: 900px) {
  .page-news .news-hero {
    padding: 48px 0 60px;
  }

  .page-news .news-hero__lead {
    font-size: 17px;
  }

  .page-news .news-entries__grid {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .news-entries__rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-news .news-tags {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 6px;
    align-items: flex-start;
  }

  .page-news .news-tag {
    width: 100%;
    justify-content: space-between;
  }

  .page-news .entry {
    padding: 22px 16px 22px 76px;
  }

  .page-news .entry__index {
    left: 8px;
    top: 22px;
    font-size: 40px;
  }

  .page-news .entry__title {
    font-size: 19px;
  }

  .page-news .entry__excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-width: 68ch;
  }

  .page-news .entry:hover .entry__excerpt,
  .page-news .entry:focus-within .entry__excerpt {
    display: block;
    overflow: visible;
    -webkit-line-clamp: unset;
  }

  .page-news .news-timeline__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-news .tl-node {
    width: 300px;
    padding-right: 32px;
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-news .topic--lead {
    grid-column: 1 / -1;
    flex-direction: row;
  }

  .page-news .topic--lead .topic__figure {
    flex: 0 0 46%;
  }

  .page-news .topic--lead .topic__figure img {
    height: 100%;
    aspect-ratio: auto;
  }

  .page-news .topic--lead .topic__body {
    padding: 28px 30px;
  }

  .page-news .topic--lead .topic__title {
    font-size: 24px;
  }

  .page-news .topic--lead .topic__desc {
    max-width: 52ch;
  }

  .page-news .news-more__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .more-card {
    padding: 28px 22px 26px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-hero {
    padding: 64px 0 76px;
  }

  .page-news .tl-node {
    width: 330px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__index,
  .page-news .more-card,
  .page-news .more-card__go,
  .page-news .topic__link a {
    transition: none;
  }
}