.page-news {
  --pn-shift: clamp(0.75rem, 3vw, 2.75rem);
  background:
    radial-gradient(120% 70% at 88% -8%, rgba(139, 92, 255, 0.20), transparent 58%),
    radial-gradient(90% 55% at -10% 4%, rgba(28, 143, 168, 0.16), transparent 55%),
    var(--rb-void);
  color: var(--rb-ice);
  overflow-x: clip;
}

.page-news .pn-crumb {
  margin: 0 0 clamp(1rem, 3vw, 1.75rem);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
}

/* 首屏 */
.page-news .pn-hero {
  padding-block: clamp(1.25rem, 4vw, 3rem) clamp(2rem, 6vw, 4.5rem);
}

.page-news .pn-hero__frame {
  position: relative;
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
  padding: clamp(1.25rem, 4vw, 3rem);
  border: 1px solid var(--rb-line);
  background:
    linear-gradient(180deg, rgba(11, 18, 34, 0.94), rgba(5, 7, 14, 0.78)),
    repeating-linear-gradient(90deg, rgba(29, 44, 71, 0.5) 0 1px, transparent 1px 88px);
  isolation: isolate;
}

.page-news .pn-hero__frame::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: min(150px, 32%);
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--rb-cyan) 0 2px, transparent 2px 12px);
  opacity: 0.75;
  pointer-events: none;
}

.page-news .pn-hero__frame::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 10px;
  height: min(150px, 32%);
  background: repeating-linear-gradient(180deg, var(--rb-violet) 0 2px, transparent 2px 12px);
  opacity: 0.7;
  pointer-events: none;
}

.page-news .pn-hero__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--rb-line);
}

.page-news .pn-hero__code {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--rb-cyan-deep);
}

.page-news .pn-hero__title {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(1.85rem, 5.4vw, 4rem);
  line-height: 1.06;
  font-weight: 700;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

.page-news .pn-hero__grid {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}

.page-news .pn-hero__lede {
  margin: 0 0 0.9rem;
  max-width: 48ch;
  font-size: clamp(0.98rem, 1.5vw, 1.08rem);
  line-height: 1.8;
  color: var(--rb-steel);
}

.page-news .pn-hero__lede:last-child {
  margin-bottom: 0;
}

.page-news .pn-kpis {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(122px, 1fr));
  gap: 1px;
  background: var(--rb-line);
  border: 1px solid var(--rb-line);
}

.page-news .pn-kpis > div {
  padding: 0.85rem 1rem;
  background: rgba(11, 18, 34, 0.92);
}

.page-news .pn-kpis dt {
  margin: 0 0 0.35rem;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--rb-steel);
}

.page-news .pn-kpis dd {
  margin: 0;
  font-family: var(--rb-mono);
  font-size: clamp(1.15rem, 2.2vw, 1.65rem);
  font-weight: 600;
  color: var(--rb-lime);
}

/* 专题索引 */
.page-news .pn-index {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--rb-line);
}

.page-news .pn-index__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-news .pn-index__title {
  margin: 0.35rem 0 0.6rem;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.12;
  font-weight: 700;
}

.page-news .pn-index__note {
  margin: 0;
  max-width: 30ch;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--rb-steel);
}

.page-news .pn-index__tags {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news .pn-tabs__panel {
  display: grid;
  gap: 0.75rem;
  padding: 1.15rem 0 0;
}

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

.page-news .pn-pick {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--rb-line);
  border-left: 2px solid var(--rb-cyan-deep);
  background: rgba(11, 18, 34, 0.7);
  text-decoration: none;
  color: inherit;
  transition: border-left-color 0.25s var(--rb-ease), background 0.25s var(--rb-ease), transform 0.25s var(--rb-ease);
}

.page-news .pn-pick:hover,
.page-news .pn-pick:focus-visible {
  border-left-color: var(--rb-cyan);
  background: rgba(55, 230, 255, 0.07);
  transform: translateX(3px);
}

.page-news .pn-pick__meta {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--rb-cyan-deep);
}

.page-news .pn-pick__title {
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.5;
}

.page-news .pn-pick__desc {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--rb-steel);
}

/* 章节通用 */
.page-news .pn-sec {
  position: relative;
  padding-block: clamp(2rem, 5.5vw, 4rem);
  border-top: 1px solid var(--rb-line);
}

.page-news .pn-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1.1rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--rb-line);
}

.page-news .pn-sec__head::before {
  content: "";
  flex: 0 0 auto;
  width: 2.25rem;
  height: 2px;
  align-self: center;
  background: linear-gradient(90deg, var(--rb-cyan), var(--rb-violet));
}

.page-news .pn-sec__num {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--rb-cyan-deep);
}

.page-news .pn-sec__title {
  margin: 0;
  font-size: clamp(1.5rem, 3.6vw, 2.6rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-news .pn-sec__sum {
  flex: 1 1 18rem;
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--rb-steel);
}

.page-news .pn-sec__body {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}

/* 侧栏视觉 */
.page-news .pn-shot {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--rb-line);
  background: var(--rb-deck);
}

.page-news .pn-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05);
}

.page-news .pn-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(180deg, rgba(55, 230, 255, 0.07) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, transparent 55%, rgba(5, 7, 14, 0.7));
}

.page-news .pn-shot__cap {
  position: relative;
  z-index: 1;
  padding: 0.55rem 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--rb-steel);
  border-top: 1px solid var(--rb-line);
  background: var(--rb-deck);
}

.page-news .pn-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.9rem 0 0;
  padding: 0;
}

.page-news .pn-chips li {
  padding: 0.22rem 0.6rem;
  border: 1px solid var(--rb-line);
  font-family: var(--rb-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--rb-ice);
}

.page-news .pn-rail-note {
  margin: 0.9rem 0 0;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--rb-steel);
  padding-left: 0.75rem;
  border-left: 1px solid var(--rb-cyan-deep);
}

.page-news .pn-rail-link {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--rb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 255, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--rb-ease), color 0.2s var(--rb-ease);
}

.page-news .pn-rail-link:hover,
.page-news .pn-rail-link:focus-visible {
  color: var(--rb-lime);
  border-bottom-color: var(--rb-lime);
}

/* 文章列表 */
.page-news .pn-arts {
  display: grid;
  align-content: start;
}

.page-news .pn-art {
  position: relative;
  padding: 1.15rem 0 1.25rem 0.9rem;
  border-top: 1px solid var(--rb-line);
}

.page-news .pn-art:first-child {
  border-top: 0;
  padding-top: 0.25rem;
}

.page-news .pn-art::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35rem;
  width: 2px;
  height: 1.1rem;
  background: var(--rb-cyan-deep);
  transition: height 0.3s var(--rb-ease), background 0.3s var(--rb-ease);
}

.page-news .pn-art:first-child::before {
  top: 0.45rem;
}

.page-news .pn-art:hover::before {
  height: 2.2rem;
  background: var(--rb-cyan);
}

.page-news .pn-art__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.75rem;
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--rb-cyan-deep);
}

.page-news .pn-art__meta .rb-mono {
  color: var(--rb-steel);
}

.page-news .pn-art__tag {
  padding: 0.1rem 0.45rem;
  border: 1px solid var(--rb-line);
  color: var(--rb-violet);
}

.page-news .pn-art__title {
  margin: 0.4rem 0 0.45rem;
  font-size: clamp(1.02rem, 2vw, 1.28rem);
  line-height: 1.5;
  font-weight: 650;
  text-wrap: balance;
}

.page-news .pn-art__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--rb-steel);
}

/* 更新节奏 */
.page-news .pn-cadence {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rb-line);
}

.page-news .pn-cadence__row {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0.2rem 0.75rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rb-line);
}

.page-news .pn-cadence__idx {
  grid-row: 1 / span 3;
  align-self: start;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--rb-cyan-deep);
}

.page-news .pn-cadence__name {
  font-size: 1rem;
  font-weight: 650;
}

.page-news .pn-cadence__focus {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--rb-steel);
}

.page-news .pn-cadence__rate {
  font-family: var(--rb-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--rb-lime);
}

/* 收尾入口 */
.page-news .pn-cta {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.25rem, 3.5vw, 2rem);
  border: 1px solid var(--rb-line);
  border-left: 3px solid var(--rb-cyan);
  background: linear-gradient(120deg, rgba(55, 230, 255, 0.07), rgba(139, 92, 255, 0.10));
}

.page-news .pn-cta__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.3;
  font-weight: 700;
}

.page-news .pn-cta__text {
  margin: 0;
  max-width: 52ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--rb-steel);
}

.page-news .pn-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.page-news .pn-footnote {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--rb-steel);
}

.page-news .pn-footnote a {
  color: var(--rb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 255, 0.35);
}

.page-news .pn-footnote a:hover,
.page-news .pn-footnote a:focus-visible {
  color: var(--rb-lime);
  border-bottom-color: var(--rb-lime);
}

/* 响应式 */
@media (min-width: 720px) {
  .page-news .pn-tabs__panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .pn-cadence__row {
    grid-template-columns: 3rem minmax(0, 2fr) minmax(0, 3fr) minmax(0, 3fr);
    align-items: baseline;
    gap: 0.4rem 0.9rem;
  }

  .page-news .pn-cadence__idx {
    grid-row: auto;
    align-self: center;
  }
}

@media (min-width: 860px) {
  .page-news .pn-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-news .pn-index__grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-news .pn-sec__body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .pn-art:nth-child(even) {
    margin-left: var(--pn-shift);
  }

  .page-news .pn-art:nth-child(odd) {
    margin-right: var(--pn-shift);
  }

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

  .page-news .pn-cta__actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-pick,
  .page-news .pn-art::before,
  .page-news .pn-rail-link,
  .page-news .pn-footnote a {
    transition: none;
  }

  .page-news .pn-pick:hover,
  .page-news .pn-pick:focus-visible {
    transform: none;
  }
}
<<<END>>>