.page-news {
  --news-rail: 236px;
  --news-gap: clamp(28px, 4vw, 56px);
  --news-entry-pad: clamp(18px, 2.4vw, 26px);
}

.page-news img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-news .news-crumb {
  padding-top: clamp(18px, 3vw, 28px);
  padding-bottom: clamp(10px, 2vw, 18px);
}

/* ── 首屏 ────────────────────────────── */
.page-news .news-mast {
  position: relative;
  padding: clamp(28px, 5vw, 64px) 0 clamp(32px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(to right, rgba(138, 148, 143, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(138, 148, 143, .09) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
}

.page-news .news-mast__grid {
  display: grid;
  gap: 28px;
}

.page-news .news-mast__lede h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7.4vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: .02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-news .news-mast__intro {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.75;
  color: var(--stone);
}

.page-news .news-mast__panel {
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--ink-800);
  padding: 4px clamp(14px, 2.4vw, 20px) 0;
}

.page-news .news-mast__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-mast__row:last-child {
  border-bottom: 0;
}

.page-news .news-mast__key {
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-news .news-mast__val {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-news .news-mast__row--status {
  justify-content: flex-start;
  padding-bottom: 14px;
}

/* ── 头条观察 ────────────────────────── */
.page-news .news-lead {
  padding-top: clamp(32px, 5vw, 64px);
}

.page-news .news-lead__head {
  margin-bottom: clamp(14px, 2vw, 20px);
}

.page-news .news-lead__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-news .news-lead__media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-news .news-lead__media img {
  width: 100%;
  aspect-ratio: 14 / 8;
  object-fit: cover;
}

.page-news .news-lead__media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-news .news-lead__body h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  line-height: 1.14;
  letter-spacing: .015em;
  color: var(--paper);
  text-wrap: balance;
}

.page-news .news-lead__body p {
  margin: 14px 0 0;
  font-size: .96rem;
  line-height: 1.78;
  color: var(--stone);
}

.page-news .news-lead__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 22px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .news-lead__stats li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-lead__stats strong {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  line-height: 1;
}

.page-news .news-lead__stats span {
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-news .news-lead__spark {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin: 20px 0 0;
  opacity: .9;
}

.page-news .news-lead__body .btn {
  margin-top: 20px;
}

/* ── 主体两栏 ────────────────────────── */
.page-news .news-body {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-top: clamp(40px, 6vw, 76px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-news .news-rail__sticky {
  display: grid;
  gap: 16px;
}

.page-news .news-rail .eyebrow {
  margin: 0;
}

.page-news .news-rail__tags,
.page-news .news-rail__stages {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-rail__tags a,
.page-news .news-rail__stages a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink-800);
  font-size: .82rem;
  color: var(--paper);
  text-decoration: none;
  transition: border-color .18s var(--ease), background-color .18s var(--ease), transform .18s var(--ease);
}

.page-news .news-rail__tags a:hover,
.page-news .news-rail__stages a:hover {
  border-color: var(--line-strong);
  background: rgba(57, 255, 208, .07);
  transform: translateY(-1px);
}

.page-news .news-rail__tags a:focus-visible,
.page-news .news-rail__stages a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .news-rail__tags .data-num,
.page-news .news-rail__stages .data-num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--stone);
}

.page-news .news-rail__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
}

.page-news .news-rail__dot--clay { background: var(--clay); }
.page-news .news-rail__dot--moss { background: var(--moss); }
.page-news .news-rail__dot--cyan { background: var(--cyan); }
.page-news .news-rail__dot--paper { background: var(--cream); }

.page-news .news-rail__figure {
  display: none;
  margin: 6px 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  padding: 10px;
}

.page-news .news-rail__figure img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  opacity: .85;
}

.page-news .news-rail__hint {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: .8rem;
  line-height: 1.7;
  color: var(--stone);
}

.page-news .news-rail__hint a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 208, .4);
}

.page-news .news-rail__hint a:hover {
  border-bottom-color: var(--cyan);
}

/* ── 阶段区块 ────────────────────────── */
.page-news .news-stream {
  display: grid;
  gap: clamp(36px, 5vw, 60px);
  min-width: 0;
}

.page-news .news-stage {
  scroll-margin-top: 110px;
}

.page-news .news-stage__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 6px 14px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--line-strong);
}

.page-news .news-stage__idx {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--moss);
}

.page-news .news-stage__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
  letter-spacing: .02em;
  color: var(--paper);
}

.page-news .news-stage__head p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.6;
  color: var(--stone);
}

.page-news .news-stage__figure {
  margin: 20px 0 4px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-news .news-stage__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .news-stage__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: .78rem;
  letter-spacing: .04em;
  color: var(--stone);
}

/* ── 时间线条目 ──────────────────────── */
.page-news .news-timeline {
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-news .news-entry {
  position: relative;
  padding: var(--news-entry-pad) 0 calc(var(--news-entry-pad) + 2px);
  border-bottom: 1px dashed rgba(138, 148, 143, .2);
  transition: background-color .18s var(--ease), transform .18s var(--ease);
  scroll-margin-top: 110px;
}

.page-news .news-entry:last-child {
  border-bottom: 0;
}

.page-news .news-entry::before {
  content: "";
  position: absolute;
  left: -27px;
  top: calc(var(--news-entry-pad) + 4px);
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
}

.page-news .news-entry:hover {
  background: rgba(57, 255, 208, .035);
  transform: translateX(2px);
}

.page-news .news-entry:focus-within {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

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

.page-news .news-entry__when {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-news .news-entry h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.2vw, 1.42rem);
  line-height: 1.34;
  letter-spacing: .012em;
  color: var(--paper);
  text-wrap: balance;
}

.page-news .news-entry p {
  margin: 10px 0 0;
  font-size: .92rem;
  line-height: 1.76;
  color: var(--stone);
  max-width: 62ch;
}

.page-news .news-entry--media .news-entry__media {
  margin: 0 0 16px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-news .news-entry__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .tag--cyan {
  background: rgba(57, 255, 208, .12);
  border-color: rgba(57, 255, 208, .45);
  color: var(--cyan);
}

.page-news .tag--paper {
  background: rgba(232, 226, 214, .1);
  border-color: rgba(232, 226, 214, .35);
  color: var(--cream);
}

/* ── 订阅与反馈 ──────────────────────── */
.page-news .news-cta {
  padding-bottom: clamp(44px, 6vw, 80px);
  border-top: 1px solid var(--line);
  padding-top: clamp(36px, 5vw, 64px);
}

.page-news .news-cta__grid {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-news .news-cta__main h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: .015em;
  color: var(--paper);
  text-wrap: balance;
}

.page-news .news-cta__main p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--stone);
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-news .news-cta__panel {
  padding: clamp(20px, 3vw, 30px);
  border-left: 2px solid var(--clay);
}

.page-news .news-cta__panel h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.28rem;
  letter-spacing: .02em;
  color: var(--cream);
}

.page-news .news-cta__panel p {
  margin: 12px 0 18px;
  font-size: .9rem;
  line-height: 1.76;
  color: var(--stone);
}

/* ── 断点 ────────────────────────────── */
@media (min-width: 640px) {
  .page-news .news-mast__panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: clamp(14px, 2.4vw, 22px);
    padding-top: 10px;
  }

  .page-news .news-mast__row {
    display: grid;
    justify-content: start;
    gap: 4px;
    border-bottom: 0;
    padding: 8px 0;
  }

  .page-news .news-mast__row--status {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    margin-top: 4px;
    padding-top: 12px;
  }

  .page-news .news-lead__stats {
    gap: 12px 32px;
  }

  .page-news .news-cta__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .news-mast__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
    align-items: end;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-news .news-mast__panel {
    display: block;
    padding-top: 4px;
  }

  .page-news .news-mast__row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--line);
    padding: 12px 0;
  }

  .page-news .news-mast__row--status {
    margin-top: 0;
    padding-top: 12px;
  }

  .page-news .news-lead__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
    gap: clamp(28px, 4vw, 44px);
  }

  .page-news .news-lead__media {
    position: sticky;
    top: 100px;
  }
}

@media (min-width: 980px) {
  .page-news .news-body {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }

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

  .page-news .news-rail__sticky {
    position: sticky;
    top: 96px;
    gap: 14px;
  }

  .page-news .news-rail__tags,
  .page-news .news-rail__stages {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-news .news-rail__tags a,
  .page-news .news-rail__stages a {
    display: flex;
    width: 100%;
    justify-content: flex-start;
    white-space: normal;
    padding: 9px 11px;
  }

  .page-news .news-rail__tags .data-num {
    margin-left: auto;
  }

  .page-news .news-rail__figure {
    display: block;
  }

  .page-news .news-entry--media {
    display: grid;
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    column-gap: 22px;
    align-items: start;
  }

  .page-news .news-entry--media .news-entry__media {
    grid-row: 1 / span 3;
    margin-bottom: 0;
  }

  .page-news .news-entry--media .news-entry__meta,
  .page-news .news-entry--media h3,
  .page-news .news-entry--media p {
    grid-column: 2;
  }
}

@media (min-width: 1180px) {
  .page-news {
    --news-rail: 268px;
  }

  .page-news .news-lead__body p {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-entry,
  .page-news .news-rail__tags a,
  .page-news .news-rail__stages a {
    transition: none;
  }

  .page-news .news-entry:hover {
    transform: none;
  }

  .page-news .news-rail__tags a:hover,
  .page-news .news-rail__stages a:hover {
    transform: none;
  }
}
<<<END>>>