.page-news {
  --progress: 0;
  position: relative;
}

.page-news [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s ease, transform .6s ease;
}
.page-news [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 阅读进度 ---------- */
.page-news .topic-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(159, 176, 192, .14);
  z-index: 3;
  pointer-events: none;
}
.page-news .topic-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transform-origin: left center;
  transform: scaleX(var(--progress, 0));
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(28px, 6vw, 72px) 0 clamp(20px, 4vw, 44px);
}
.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: end;
}
.page-news .news-hero__copy .eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  margin: 0 0 14px;
}
.page-news .news-hero__copy .display--xl {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(34px, 6.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--text);
  margin: 0 0 18px;
}
.page-news .news-hero__copy .lede {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--muted);
  max-width: 54ch;
  margin: 0;
}
.page-news .news-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--hair);
}
.page-news .news-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.page-news .news-hero__meta-k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
}
.page-news .news-hero__meta-v {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: .03em;
  color: var(--text);
}
.page-news .news-hero__figure {
  margin: 0;
  border: 1px solid var(--hair-soft);
  border-left: 5px solid var(--orange);
  overflow: hidden;
}
.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

/* ---------- 栏目导览色带 ---------- */
.page-news .news-strip__heading {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.2;
  color: var(--text);
  margin: 8px 0 0;
  max-width: 22ch;
}
.page-news .news-strip__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin-top: clamp(20px, 4vw, 36px);
}
.page-news .news-strip__item {
  display: block;
  padding: 20px 20px 24px;
  background: var(--panel);
  border-top: 6px solid var(--cyan);
  text-decoration: none;
  color: var(--text);
  transition: transform .28s ease, box-shadow .28s ease;
}
.page-news .news-strip__item--a { border-top-color: var(--cyan); }
.page-news .news-strip__item--b { border-top-color: var(--orange); }
.page-news .news-strip__item--c { border-top-color: var(--lime); }
.page-news .news-strip__item--d { border-top-color: var(--paper); }
.page-news .news-strip__item:hover,
.page-news .news-strip__item:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hard);
}
.page-news .news-strip__idx {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}
.page-news .news-strip__label {
  display: block;
  margin: 12px 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.2;
  color: var(--text);
}
.page-news .news-strip__desc {
  display: block;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 专题纵向长卷 ---------- */
.page-news .topic-lane {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  padding: clamp(34px, 5.5vw, 66px) 0;
  border-top: 1px solid var(--hair);
}
.page-news .topic-lane__idx {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--cyan);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--cyan);
}
.page-news .topic-lane__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.12;
  color: var(--text);
  margin: 16px 0 12px;
}
.page-news .topic-lane__note {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}
.page-news .topic-lane__figure {
  margin: 0 0 22px;
  border: 1px solid var(--hair-soft);
  border-bottom: 4px solid var(--cyan);
  overflow: hidden;
}
.page-news .topic-lane__figure--mid {
  margin: 0 0 14px;
  border-bottom-color: var(--orange);
}
.page-news .topic-lane__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}
.page-news .topic-lane__figure--mid img {
  aspect-ratio: 3 / 2;
}
.page-news .media__caption {
  display: block;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--muted);
  background: var(--panel);
}

/* ---------- 研究卡 ---------- */
.page-news .topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-news .topic-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--hair-soft);
  border-left: 4px solid var(--orange);
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.page-news .topic-list > li:nth-child(even) .topic-card {
  transform: translateX(0);
}
.page-news .topic-card[open] {
  border-left-color: var(--cyan);
  box-shadow: var(--shadow-hard);
}
.page-news .topic-card__q {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 18px 54px 18px 20px;
  cursor: pointer;
  list-style: none;
}
.page-news .topic-card__q::-webkit-details-marker { display: none; }
.page-news .topic-card__q::marker { content: ""; }
.page-news .topic-card__ver {
  flex: none;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--edge);
  background: var(--cyan);
  padding: 3px 8px;
}
.page-news .topic-card__title {
  flex: 1 1 200px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}
.page-news .topic-card__time {
  flex: none;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--muted);
}
.page-news .topic-card__sign {
  position: absolute;
  right: 20px;
  top: 50%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  pointer-events: none;
}
.page-news .topic-card__sign::before,
.page-news .topic-card__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform .25s ease, opacity .25s ease;
}
.page-news .topic-card__sign::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}
.page-news .topic-card__sign::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}
.page-news .topic-card[open] .topic-card__sign::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-news .topic-card__a {
  padding: 18px 20px 24px;
  border-top: 1px solid var(--hair);
}
.page-news .topic-card__lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  margin: 0 0 14px;
}
.page-news .topic-card__points {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 9px;
}
.page-news .topic-card__points li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}
.page-news .topic-card__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}
.page-news .topic-card__takeaway {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
  border-left: 3px solid var(--orange);
  padding-left: 14px;
  margin: 0;
}

/* ---------- 更新节奏（暖纸色停顿段） ---------- */
.page-news .section--paper .news-pace__eyebrow {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--paper-accent);
  margin: 0 0 12px;
}
.page-news .news-pace__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(26px, 3.8vw, 42px);
  line-height: 1.14;
  color: var(--paper-text);
  margin: 0 0 16px;
}
.page-news .news-pace__lead {
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-text);
  max-width: 62ch;
  margin: 0 0 30px;
}
.page-news .news-pace__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
  margin-bottom: 30px;
}
.page-news .news-pace__item {
  border-top: 4px solid var(--paper-accent);
  padding-top: 14px;
}
.page-news .news-pace__num {
  display: block;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(34px, 5vw, 46px);
  line-height: 1;
  color: var(--paper-text);
}
.page-news .news-pace__label {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--paper-accent);
}
.page-news .news-pace__foot {
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--paper-text);
  max-width: 62ch;
  margin: 0 0 26px;
  padding-top: 22px;
  border-top: 1px dashed rgba(178, 58, 11, .38);
}
.page-news .news-pace__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 延伸阅读 ---------- */
.page-news .news-links__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 24px;
}
.page-news .news-links__item {
  display: block;
  padding: 20px 22px;
  background: var(--panel);
  border: 1px solid var(--hair-soft);
  border-bottom: 3px solid var(--orange);
  text-decoration: none;
  color: var(--text);
  transition: transform .25s ease, border-bottom-color .25s ease, box-shadow .25s ease;
}
.page-news .news-links__item:hover,
.page-news .news-links__item:focus-visible {
  transform: translateY(-3px);
  border-bottom-color: var(--cyan);
  box-shadow: var(--shadow-hard);
}
.page-news .news-links__label {
  display: block;
  font-family: var(--display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: .01em;
  margin-bottom: 8px;
}
.page-news .news-links__desc {
  display: block;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 移动优先的窄屏收敛 ---------- */
@media (max-width: 420px) {
  .page-news .news-hero__meta {
    gap: 10px 20px;
  }
  .page-news .news-pace__grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .topic-card__q {
    padding: 16px 46px 16px 16px;
  }
  .page-news .topic-card__a {
    padding: 16px 16px 22px;
  }
}

@media (min-width: 720px) {
  .page-news .news-strip__row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .news-pace__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .news-links__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }
  .page-news .topic-progress {
    top: 0;
    left: auto;
    right: 0;
    width: 3px;
    height: 100vh;
  }
  .page-news .topic-progress__bar {
    transform-origin: top center;
    transform: scaleY(var(--progress, 0));
    background: linear-gradient(180deg, var(--cyan), var(--orange));
  }
}

@media (min-width: 1000px) {
  .page-news .topic-lane {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }
  .page-news .topic-lane--mirror {
    grid-template-columns: minmax(0, 1fr) 236px;
  }
  .page-news .topic-lane--mirror .topic-lane__rail {
    order: 2;
  }
  .page-news .topic-lane--mirror .topic-lane__body {
    order: 1;
  }
  .page-news .topic-lane__rail {
    align-self: start;
  }
  .page-news .topic-list > li:nth-child(even) .topic-card {
    transform: translateX(16px);
  }
  .page-news .topic-list > li:nth-child(even) .topic-card[open] {
    transform: translateX(16px);
  }
  .page-news .news-links__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-news .news-strip__row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .news-strip__item {
    padding: 24px 22px 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-news .news-strip__item,
  .page-news .topic-card,
  .page-news .news-links__item {
    transition: none;
  }
  .page-news .topic-list > li:nth-child(even) .topic-card,
  .page-news .topic-list > li:nth-child(even) .topic-card[open] {
    transform: none;
  }
}
<<<END>>>