.page-news {
  --news-rail: 172px;
  --news-node: 10px;
  position: relative;
  background: var(--ink);
  color: var(--white);
  font-family: var(--sans);
  overflow-x: hidden;
}

.page-news::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(70, 86, 94, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(70, 86, 94, 0.16) 1px, transparent 1px);
  background-size: 8px 8px;
  pointer-events: none;
  z-index: 0;
}

.page-news > * {
  position: relative;
  z-index: 1;
}

.page-news .shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(1.1rem, 3.5vw, 2.25rem);
}

.page-news .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--cold);
}

.page-news .breadcrumb-list a {
  color: var(--cold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .breadcrumb-list a:hover,
.page-news .breadcrumb-list a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-news .breadcrumb-list [aria-current="page"] {
  color: var(--white);
  font-weight: 500;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: clamp(1.5rem, 4.5vw, 3rem);
}

.page-news .news-kicker {
  margin: 0 0 1rem;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-news .news-hero h1 {
  margin: 0 0 1.4rem;
  max-width: 24ch;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(2.05rem, 6.2vw, 4.35rem);
  line-height: 1.06;
  letter-spacing: -0.005em;
  color: var(--white);
}

.page-news .news-hero-lower {
  display: grid;
  gap: 1.4rem;
}

.page-news .news-lede {
  margin: 0;
  max-width: 64ch;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--cold);
}

.page-news .news-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.84rem;
  letter-spacing: 0.02em;
  color: var(--cold);
}

.page-news .news-hero-stats li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding-left: 0.7rem;
  border-left: 2px solid var(--grass);
}

.page-news .news-hero-stats b {
  font-family: var(--mono);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}

.page-news .news-hero-media {
  position: relative;
  margin: clamp(1.75rem, 5vw, 3rem) 0 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-news .news-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(8, 22, 15, 0.3);
  pointer-events: none;
}

/* ---------- 视图切换与筛选条 ---------- */
.page-news .news-controls {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  z-index: 6;
}

.page-news .news-controls-inner {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding-block: 0.85rem;
}

.page-news .density-switch {
  display: inline-flex;
  align-self: flex-start;
  border: 1px solid var(--line);
}

.page-news .density-btn {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0.48rem 1.15rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--cold);
  cursor: pointer;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-news .density-btn + .density-btn {
  border-left: 1px solid var(--line);
}

.page-news .density-btn:hover {
  color: var(--white);
}

.page-news .density-btn.is-active,
.page-news .density-btn[aria-pressed="true"] {
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

.page-news .density-btn:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-news .tagbar {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.35rem;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-news .tagbar::-webkit-scrollbar {
  height: 4px;
}

.page-news .tagbar::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-news .tag {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.38rem 0.85rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--cold);
  cursor: pointer;
  border-radius: 0;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-news .tag:hover {
  border-color: var(--grass);
  color: var(--white);
}

.page-news .tag.is-active,
.page-news .tag[aria-pressed="true"] {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

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

.page-news .tag--static {
  cursor: default;
  border-color: var(--grass);
  color: var(--cold);
}

.page-news .tag--static:hover {
  border-color: var(--grass);
  color: var(--cold);
}

/* ---------- 时间轴列表 ---------- */
.page-news .news-stream {
  padding-block: clamp(1.75rem, 5vw, 3rem);
}

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

.page-news .timeline-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--line);
}

.page-news .timeline-mark {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}

.page-news .timeline-node {
  flex: 0 0 auto;
  width: var(--news-node);
  height: var(--news-node);
  border-radius: 50%;
  background: var(--grass);
  box-shadow: 0 0 0 3px rgba(31, 107, 76, 0.22);
}

.page-news .timeline-node.is-current {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 26, 0.24);
}

.page-news .stamp {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--cold);
  font-variant-numeric: tabular-nums;
}

.page-news .stamp--time {
  color: var(--grass);
  border-left: 1px solid var(--line);
  padding-left: 0.6rem;
}

.page-news .trend-card {
  display: grid;
  gap: 0.55rem;
  background: var(--field);
  border: 1px solid transparent;
  border-left: 2px solid var(--grass);
  border-radius: 0;
  padding: 1.05rem 1.15rem 1.15rem;
  box-shadow: none;
  transition: border-left-color 0.2s var(--ease);
}

.page-news .trend-card:hover {
  border-left-color: var(--signal);
}

.page-news .trend-title {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--white);
  transition: color 0.2s var(--ease);
}

.page-news .trend-card:hover .trend-title {
  color: var(--amber);
}

.page-news .trend-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}

.page-news .trend-summary {
  margin: 0;
  max-width: 68ch;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--cold);
}

.page-news .news-empty {
  display: grid;
  gap: 1rem;
  justify-items: start;
  margin-top: 1.5rem;
  padding: 1.4rem 1.25rem;
  border: 1px dashed var(--line);
  background: var(--field);
}

.page-news .news-empty[hidden] {
  display: none;
}

.page-news .news-empty-text {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--cold);
}

/* ---------- 专题线索 ---------- */
.page-news .news-series {
  background: var(--field);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(2.25rem, 6vw, 4.25rem);
}

.page-news .series-layout {
  display: grid;
  gap: 2rem;
}

.page-news .series-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .series-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-news .series-heading {
  margin: 0 0 0.85rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.6vw, 2.35rem);
  line-height: 1.18;
  color: var(--white);
}

.page-news .series-lede {
  margin: 0;
  max-width: 62ch;
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--cold);
}

.page-news .series-list {
  display: grid;
  gap: 0;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-news .series-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 1rem;
  padding-block: 1.15rem;
  border-top: 1px solid var(--line);
}

.page-news .series-num {
  font-family: var(--narrow);
  font-weight: 800;
  font-size: 1.85rem;
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-news .series-item-body h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-news .series-item-body p {
  margin: 0;
  max-width: 56ch;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--cold);
}

/* ---------- 归档入口 ---------- */
.page-news .news-archive {
  padding-block: clamp(2.25rem, 6vw, 4.25rem);
}

.page-news .archive-card {
  display: grid;
  gap: 1.75rem;
  padding: clamp(1.35rem, 4vw, 2.6rem);
  background: var(--field);
  border: 1px solid var(--line);
  border-top: 3px solid var(--signal);
}

.page-news .archive-kicker {
  margin: 0 0 0.75rem;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-news .archive-copy h2 {
  margin: 0 0 0.85rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.15rem);
  line-height: 1.2;
  color: var(--white);
}

.page-news .archive-text {
  margin: 0 0 1.4rem;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--cold);
}

.page-news .archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-news .archive-figure {
  margin: 0;
  aspect-ratio: 12 / 7;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .archive-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 订阅带 ---------- */
.page-news .news-subscribe {
  padding-block: clamp(2rem, 5.5vw, 3.75rem) clamp(3rem, 8vw, 5rem);
  border-top: 1px solid var(--line);
}

.page-news .subscribe-inner {
  display: grid;
  gap: 1.5rem;
}

.page-news .subscribe-figure {
  margin: 0;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-news .subscribe-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05);
}

.page-news .subscribe-kicker {
  margin: 0 0 0.7rem;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-news .subscribe-copy h2 {
  margin: 0 0 0.8rem;
  font-family: var(--narrow);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1.2;
  color: var(--white);
}

.page-news .subscribe-text {
  margin: 0 0 1.35rem;
  max-width: 58ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--cold);
}

.page-news .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 自适应 ---------- */
@media (min-width: 768px) {
  .page-news .news-controls-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
  }

  .page-news .news-hero-lower {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 2rem;
  }

  .page-news .news-hero-stats {
    justify-content: flex-end;
  }

  .page-news .news-hero-media {
    aspect-ratio: 20 / 7;
  }
}

@media (min-width: 900px) {
  .page-news .timeline-row {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 0 2rem;
    padding-block: 0;
    border-bottom: 0;
  }

  .page-news .timeline-mark {
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-start;
    gap: 0.4rem;
    padding: 1.8rem 1.15rem 1.8rem 0;
    border-right: 1px solid var(--line);
    text-align: right;
  }

  .page-news .timeline-node {
    position: absolute;
    top: 2.05rem;
    right: calc(var(--news-node) / -2 - 1px);
  }

  .page-news .stamp--time {
    border-left: 0;
    padding-left: 0;
  }

  .page-news .trend-card {
    margin-block: 0.85rem;
  }

  .page-news .series-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 3.5rem;
    align-items: start;
  }

  .page-news .archive-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 3rem;
  }

  .page-news .subscribe-inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: 3rem;
  }
}

@media (max-width: 767px) {
  .page-news .news-controls {
    position: sticky;
    top: 0;
  }

  .page-news .news-hero h1 {
    max-width: none;
  }

  .page-news .series-item {
    grid-template-columns: 42px 1fr;
    gap: 0.85rem;
  }

  .page-news .subscribe-actions .btn,
  .page-news .archive-actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .density-btn,
  .page-news .tag,
  .page-news .trend-card,
  .page-news .trend-title,
  .page-news .breadcrumb-list a {
    transition: none;
  }
}