.page-news {
  --news-rail-w: 13.5rem;
  --news-rule: rgba(30, 74, 122, 0.55);
  color: var(--tx-ice);
  background: var(--tx-night);
  overflow-x: clip;
}

.page-news .news-crumb {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.75rem, 5vw, 3.25rem) 0 clamp(2.5rem, 7vw, 5.25rem);
  background:
    radial-gradient(90% 120% at 92% -10%, rgba(0, 229, 255, 0.18), transparent 62%),
    radial-gradient(72% 100% at 2% 100%, rgba(14, 59, 58, 0.85), transparent 72%),
    linear-gradient(158deg, var(--tx-night) 0%, var(--tx-blue) 60%, var(--tx-violet) 100%);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(30, 74, 122, 0.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 74, 122, 0.42) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: linear-gradient(118deg, transparent 5%, #000 45%, transparent 94%);
  mask-image: linear-gradient(118deg, transparent 5%, #000 45%, transparent 94%);
  opacity: 0.55;
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 4%;
  right: -16%;
  width: 54%;
  height: 100%;
  background: linear-gradient(140deg, rgba(255, 107, 26, 0.22), rgba(0, 229, 255, 0.1));
  clip-path: polygon(24% 0, 100% 0, 72% 100%, 0 100%);
  pointer-events: none;
}

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

.page-news .news-hero__title {
  margin: 0.75rem 0 0;
  max-width: 16ch;
  font-family: var(--tx-display);
  font-size: clamp(2.25rem, 8vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--tx-ice);
  text-wrap: balance;
}

.page-news .news-hero__title span {
  display: block;
  background: linear-gradient(96deg, var(--tx-cyan) 0%, #7fd8ff 52%, var(--tx-orange) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--tx-cyan);
}

.page-news .news-hero__lede {
  margin: 1.5rem 0 0;
  max-width: 48ch;
  font-size: clamp(0.96rem, 1.5vw, 1.09rem);
  line-height: 1.9;
  color: var(--tx-steel);
}

.page-news .news-hero__marks {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem clamp(1rem, 3vw, 2.25rem);
  margin: 2rem 0 0;
  padding: 0;
}

.page-news .news-hero__marks li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--news-rule);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--tx-steel);
}

.page-news .news-hero__marks .tx-metric {
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  color: var(--tx-cyan);
}

/* ---------- 画布与索引栏 ---------- */

.page-news .news-canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3.5vw, 2.5rem);
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-news .news-rail {
  min-width: 0;
  border-top: 1px solid var(--news-rule);
  padding-top: 0.9rem;
}

.page-news .news-rail__title {
  margin: 0 0 0.7rem;
  font-family: var(--tx-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--tx-steel);
}

.page-news .news-rail__list {
  list-style: none;
  display: flex;
  gap: 0.45rem;
  margin: 0;
  padding: 0 0 0.35rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-rail__list::-webkit-scrollbar {
  display: none;
}

.page-news .news-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--news-rule);
  color: var(--tx-steel);
  font-size: 0.82rem;
  text-decoration: none;
  transition: color 0.2s var(--tx-ease), border-color 0.2s var(--tx-ease), background-color 0.2s var(--tx-ease);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  color: var(--tx-ice);
  border-color: rgba(0, 229, 255, 0.6);
  background: rgba(0, 229, 255, 0.06);
}

.page-news .news-rail__link[aria-current="location"] {
  color: var(--tx-night);
  background: var(--tx-cyan);
  border-color: var(--tx-cyan);
  font-weight: 600;
}

.page-news .news-rail__num {
  font-family: var(--tx-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  opacity: 0.85;
}

.page-news .news-rail__cta {
  margin-top: 0.9rem;
  width: 100%;
  justify-content: center;
}

/* ---------- 章节 ---------- */

.page-news .news-section {
  position: relative;
  scroll-margin-top: 7rem;
  padding: clamp(1.35rem, 3.6vw, 2.5rem) clamp(1rem, 3vw, 1.9rem);
  border-radius: 3px;
  background: linear-gradient(158deg, rgba(10, 42, 92, 0.5), rgba(6, 21, 46, 0.1) 78%);
}

.page-news .news-section + .news-section {
  margin-top: clamp(0.9rem, 2.4vw, 1.5rem);
}

.page-news .news-section--teal {
  background: linear-gradient(158deg, rgba(14, 59, 58, 0.72), rgba(6, 21, 46, 0.12) 82%);
}

.page-news .news-section--violet {
  background: linear-gradient(158deg, rgba(36, 20, 71, 0.78), rgba(6, 21, 46, 0.12) 84%);
}

.page-news .news-section--wine {
  background: linear-gradient(158deg, rgba(74, 18, 48, 0.72), rgba(6, 21, 46, 0.12) 84%);
}

.page-news .news-section--blue {
  background: linear-gradient(140deg, var(--tx-blue), rgba(6, 21, 46, 0.88));
}

.page-news .news-section__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
}

.page-news .news-section__num {
  font-family: var(--tx-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--tx-cyan);
  opacity: 0.78;
}

.page-news .news-section__head h2 {
  margin: 0;
  font-size: clamp(1.4rem, 3.4vw, 2.15rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--tx-ice);
}

.page-news .news-section__head h2::before {
  content: "";
  display: inline-block;
  width: 0.72rem;
  height: 0.72rem;
  margin-right: 0.5rem;
  background: var(--tx-orange);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 20% 100%);
  transform: skewX(-12deg);
}

.page-news .news-section__sub {
  margin: 0.6rem 0 clamp(1.15rem, 3vw, 1.9rem);
  max-width: 52ch;
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--tx-steel);
}

/* ---------- 媒体 ---------- */

.page-news .news-media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid rgba(30, 74, 122, 0.5);
  background: linear-gradient(150deg, rgba(10, 42, 92, 0.9), rgba(6, 21, 46, 0.96));
}

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

.page-news .news-media--lead {
  aspect-ratio: 12 / 7;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
}

.page-news .news-media--wide {
  aspect-ratio: 3 / 2;
}

.page-news .news-media--cut {
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}

/* ---------- 头条 ---------- */

.page-news .news-lead {
  display: grid;
  gap: 1.1rem;
  margin-bottom: clamp(1.2rem, 3vw, 2.1rem);
}

.page-news .news-lead__body {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-news .news-lead__kicker {
  margin: 0;
  font-family: var(--tx-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--tx-orange);
}

.page-news .news-lead__body h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2.5vw, 1.6rem);
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--tx-ice);
}

.page-news .news-lead__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--tx-steel);
}

/* ---------- 文章列表 ---------- */

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

.page-news .news-list__item {
  display: grid;
  gap: 0.4rem;
  padding: clamp(0.9rem, 2.4vw, 1.3rem) 0;
  border-top: 1px solid var(--news-rule);
}

.page-news .news-list--tight .news-list__item {
  padding: clamp(0.75rem, 2vw, 1.1rem) 0;
}

.page-news .news-list__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.9rem;
  margin: 0;
  font-family: var(--tx-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--tx-steel);
}

.page-news .news-list__meta span:first-child {
  color: var(--tx-cyan);
}

.page-news .news-list__item h3 {
  margin: 0;
  font-size: clamp(1rem, 1.9vw, 1.2rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--tx-ice);
}

.page-news .news-list__item p:not(.news-list__meta) {
  margin: 0;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.82;
  color: var(--tx-steel);
}

/* ---------- 图注 ---------- */

.page-news .news-figure {
  margin: clamp(1.15rem, 3vw, 1.9rem) 0 0;
}

.page-news .news-figure__cap {
  margin: 0.7rem 0 0;
  padding-left: 0.7rem;
  border-left: 2px solid var(--tx-cyan);
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--tx-steel);
}

/* ---------- 分栏 ---------- */

.page-news .news-split {
  display: grid;
  gap: clamp(1.1rem, 3vw, 1.9rem);
  margin-bottom: clamp(1rem, 2.5vw, 1.6rem);
}

.page-news .news-split__body {
  display: grid;
  gap: 0.7rem;
  align-content: start;
}

.page-news .news-split__body h3 {
  margin: 0;
  font-size: clamp(1.08rem, 2.3vw, 1.42rem);
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--tx-ice);
}

.page-news .news-split__body p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--tx-steel);
}

/* ---------- 更新日志 ---------- */

.page-news .news-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.4rem;
  border-left: 1px solid var(--news-rule);
  display: grid;
  gap: clamp(0.95rem, 2.6vw, 1.55rem);
}

.page-news .news-timeline__item {
  position: relative;
  display: grid;
  gap: 0.3rem;
}

.page-news .news-timeline__item::before {
  content: "";
  position: absolute;
  left: -1.4rem;
  top: 0.45rem;
  width: 0.5rem;
  height: 0.5rem;
  margin-left: 0.5px;
  border-radius: 50%;
  background: var(--tx-cyan);
  transform: translateX(-50%);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
}

.page-news .news-timeline__ver {
  justify-self: start;
  font-family: var(--tx-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--tx-cyan);
}

.page-news .news-timeline__item h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--tx-ice);
}

.page-news .news-timeline__item p {
  margin: 0.2rem 0 0;
  max-width: 60ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--tx-steel);
}

/* ---------- 专题 ---------- */

.page-news .news-features {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(1rem, 2.6vw, 1.6rem);
  background: var(--news-rule);
}

.page-news .news-feature {
  display: grid;
  gap: 0.45rem;
  align-content: start;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  background: linear-gradient(160deg, rgba(36, 20, 71, 0.72), rgba(6, 21, 46, 0.92));
}

.page-news .news-feature__tag {
  margin: 0;
  font-family: var(--tx-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--tx-orange);
}

.page-news .news-feature h3 {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.48;
  letter-spacing: -0.01em;
  color: var(--tx-ice);
}

.page-news .news-feature p:not(.news-feature__tag) {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--tx-steel);
}

/* ---------- 订阅 ---------- */

.page-news .news-follow {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-news .news-follow h3 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--tx-ice);
}

.page-news .news-follow p {
  margin: 0 0 0.7rem;
  max-width: 54ch;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--tx-steel);
}

.page-news .news-follow__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-content: start;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-news .news-timeline__item {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }

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

@media (min-width: 760px) {
  .page-news .news-lead {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: clamp(1.25rem, 3vw, 2.25rem);
  }

  .page-news .news-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-follow {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1040px) {
  .page-news .news-canvas {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 7.5rem;
    border-top: 0;
    border-left: 1px solid var(--news-rule);
    padding: 0.15rem 0 0.15rem 1.1rem;
  }

  .page-news .news-rail__list {
    flex-direction: column;
    gap: 0.05rem;
    overflow: visible;
    padding-bottom: 0.4rem;
  }

  .page-news .news-rail__link {
    width: 100%;
    white-space: normal;
    border: 0;
    border-left: 2px solid transparent;
    padding: 0.45rem 0.4rem 0.45rem 0.7rem;
  }

  .page-news .news-rail__link[aria-current="location"] {
    color: var(--tx-cyan);
    background: linear-gradient(90deg, rgba(0, 229, 255, 0.14), transparent 88%);
    border-color: transparent;
    border-left-color: var(--tx-cyan);
    font-weight: 600;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}