.page-news {
  --news-cut: 24px;
  --news-gap: clamp(18px, 2.6vw, 28px);
  --news-pad: clamp(44px, 6.5vw, 92px);
  --news-deep-amber: #b4560a;
  background: var(--ink);
  color: var(--paper);
}

.page-news .section {
  padding-block: var(--news-pad);
}

.page-news .section--tight {
  padding-block: clamp(34px, 5vw, 64px);
}

.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cool);
}

.page-news .crumbs a {
  color: var(--cool);
  text-decoration: none;
}

.page-news .crumbs a:hover,
.page-news .crumbs a:focus-visible {
  color: var(--cyan);
}

.page-news .crumbs [aria-current="page"] {
  color: var(--paper);
}

/* 首屏 */
.page-news .news-hero {
  position: relative;
  padding-block: clamp(26px, 4.5vw, 52px) clamp(34px, 5.5vw, 70px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 96% at 84% -14%, rgba(21, 224, 200, 0.16), transparent 62%),
    linear-gradient(180deg, rgba(20, 42, 58, 0.6), rgba(11, 27, 43, 0) 72%);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--amber));
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

.page-news .news-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(33px, 7.2vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.01em;
}

.page-news .news-hero h1 em {
  font-style: normal;
  color: var(--cyan);
}

.page-news .news-hero .lede {
  max-width: 54ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.82);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-news .news-hero__board {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-strong);
  background: linear-gradient(158deg, rgba(20, 42, 58, 0.96), rgba(5, 13, 20, 0.94));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-news .news-hero__board-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
  margin: 18px 0 0;
}

.page-news .news-hero__stat dt {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cool);
}

.page-news .news-hero__stat dd {
  margin: 5px 0 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.2;
  color: var(--paper);
}

.page-news .news-hero__stat dd .num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.16em;
  color: var(--cyan);
}

/* 索引与筛选 */
.page-news .news-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-news .chip {
  padding: 9px 13px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--cool);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-align: left;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: background 0.24s var(--ease), color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-news .chip:hover {
  color: var(--paper);
  border-color: var(--cyan);
}

.page-news .chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--night);
}

.page-news .news-index__hint {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--cool);
}

.page-news .news-index__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.15;
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  margin-top: 24px;
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(20, 42, 58, 0.86), rgba(5, 13, 20, 0.92));
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
  transition: transform 0.34s var(--ease), border-color 0.34s var(--ease);
}

.page-news .topic-card:hover {
  transform: translateY(-4px);
  border-color: rgba(21, 224, 200, 0.5);
}

.page-news .topic-card__media {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-news .topic-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.86) contrast(1.06);
  transition: transform 0.5s var(--ease);
}

.page-news .topic-card:hover .topic-card__media img {
  transform: scale(1.03);
}

.page-news .topic-card__no {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 8px;
  background: var(--night);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-news .topic-card__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.2vw, 24px);
}

.page-news .tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-news .topic-card__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.28;
}

.page-news .topic-card__body h3 a {
  color: var(--paper);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-news .topic-card__body h3 a:hover,
.page-news .topic-card__body h3 a:focus-visible {
  color: var(--cyan);
}

.page-news .topic-card__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.74);
}

.page-news .topic-card__foot {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cool);
}

.page-news .topic-card__foot .num {
  color: var(--cyan-soft);
}

/* 时间轴 */
.page-news .news-timeline {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(20, 42, 58, 0.55), rgba(11, 27, 43, 0.1) 70%);
}

.page-news .news-timeline__head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.15;
}

.page-news .news-timeline__note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cool);
}

.page-news .news-timeline__scroller {
  display: flex;
  gap: 16px;
  margin-top: 26px;
  padding: 6px var(--gutter) 24px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) rgba(143, 163, 176, 0.22);
}

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

.page-news .news-timeline__scroller::-webkit-scrollbar-track {
  background: rgba(143, 163, 176, 0.18);
}

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

.page-news .tl-node {
  position: relative;
  flex: 0 0 min(286px, 76vw);
  padding-top: 18px;
  border-top: 2px solid var(--line-strong);
  scroll-snap-align: start;
}

.page-news .tl-node::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--cyan);
}

.page-news .tl-node:first-child {
  border-top-color: var(--amber);
}

.page-news .tl-node:first-child::before {
  background: var(--amber);
}

.page-news .tl-node__date {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cool);
}

.page-news .tl-node h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 19px;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .tl-node p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.72);
}

/* 暖纸阅读区 */
.page-news .section--paper {
  background: var(--paper);
  color: var(--ink);
}

.page-news .section--paper .eyebrow {
  color: #5b6b75;
}

.page-news .ledger__heading {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.8vw, 40px);
  line-height: 1.14;
  color: var(--ink);
}

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

.page-news .ledger__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: 22px 0;
  border-top: 1px solid var(--paper-line);
}

.page-news .ledger__item:last-child {
  border-bottom: 1px solid var(--paper-line);
}

.page-news .ledger__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--news-deep-amber);
}

.page-news .ledger__body {
  min-width: 0;
}

.page-news .section--paper .tag {
  color: var(--news-deep-amber);
}

.page-news .ledger__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.28;
}

.page-news .ledger__title a {
  color: var(--ink);
  text-decoration: none;
  transition: color 0.24s var(--ease);
}

.page-news .ledger__title a:hover,
.page-news .ledger__title a:focus-visible {
  color: var(--news-deep-amber);
}

.page-news .ledger__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #3a4a55;
}

.page-news .ledger__time {
  grid-column: 2;
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #5b6b75;
}

/* 阅读路径 */
.page-news .news-paths__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.15;
}

.page-news .paths {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  margin-top: 26px;
}

.page-news .route-card {
  display: block;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background: linear-gradient(152deg, rgba(20, 42, 58, 0.92), rgba(5, 13, 20, 0.8));
  color: var(--paper);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-news .route-card:hover,
.page-news .route-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(21, 224, 200, 0.55);
  background: linear-gradient(152deg, rgba(21, 224, 200, 0.12), rgba(5, 13, 20, 0.88));
}

.page-news .route-card__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-news .route-card h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.25;
}

.page-news .route-card p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.76);
}

.page-news .route-card__go {
  display: inline-block;
  margin-top: 18px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

/* 更新节奏 */
.page-news .news-cadence {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(20, 42, 58, 0.5), rgba(5, 13, 20, 0.2));
}

.page-news .news-cadence__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

.page-news .news-cadence__intro h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.15;
}

.page-news .news-cadence__intro p {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 239, 228, 0.78);
}

.page-news .news-cadence__intro .btn {
  margin-top: 24px;
}

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

.page-news .cadence-list__item {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-news .cadence-list__item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .cadence-list__num {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-news .cadence-list__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 239, 228, 0.74);
}

@media (min-width: 700px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-news .ledger__item {
    grid-template-columns: 58px minmax(0, 1fr) 124px;
    align-items: start;
    gap: 6px 20px;
  }

  .page-news .ledger__time {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
    margin-top: 4px;
    text-align: right;
  }

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

@media (min-width: 860px) {
  .page-news .paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-index__grid {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-news .news-index__rail {
    position: sticky;
    top: calc(var(--bar-h) + 28px);
  }

  .page-news .news-filter {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 940px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-card,
  .page-news .topic-card__media img,
  .page-news .route-card,
  .page-news .chip {
    transition: none;
  }

  .page-news .topic-card:hover,
  .page-news .route-card:hover {
    transform: none;
  }
}
<<<END>>>