.page-news {
  --pn-gap: clamp(1rem, 2.4vw, 1.6rem);
  --pn-section-y: clamp(2.2rem, 6vw, 4rem);
  --pn-line: rgba(30, 58, 50, .12);
}

/* ---------- 首屏 ---------- */
.page-news .pn-hero {
  padding-bottom: var(--pn-section-y);
}

.page-news .pn-hero__grid {
  display: grid;
  gap: var(--pn-gap);
  align-items: center;
}

.page-news .pn-hero__copy {
  max-width: 42rem;
}

.page-news .pn-hero h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(1.95rem, 6.4vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--ink);
  margin: .55rem 0 0;
}

.page-news .pn-hero h1 em {
  font-style: normal;
  color: var(--red);
  background: linear-gradient(transparent 64%, var(--gold-soft) 64%);
  padding: 0 .12em;
}

.page-news .pn-hero .lede {
  margin-top: 1rem;
  color: rgba(27, 26, 24, .78);
}

.page-news .pn-facts {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem clamp(1.1rem, 4vw, 2.2rem);
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.page-news .pn-facts li {
  display: flex;
  flex-direction: column;
  gap: .12rem;
  padding-left: .8rem;
  border-left: 2px solid var(--gold);
}

.page-news .pn-facts strong {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 3.4vw, 1.55rem);
  line-height: 1.1;
  color: var(--red);
}

.page-news .pn-facts span {
  font-size: .78rem;
  letter-spacing: .03em;
  color: var(--rock);
}

.page-news .pn-hero__act {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.5rem;
}

.page-news .pn-hero__art {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: var(--cream-2);
  margin: 0;
}

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

.page-news .pn-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(30, 58, 50, .14);
  pointer-events: none;
}

/* ---------- 本期头条 ---------- */
.page-news .pn-pick {
  padding-bottom: var(--pn-section-y);
}

.page-news .pn-pick__card {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: clamp(1rem, 2.6vw, 1.8rem);
  padding: clamp(1.2rem, 3vw, 2rem);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(115% 85% at 100% 0%, rgba(217, 164, 65, .30), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(200, 52, 46, .22), transparent 60%),
    linear-gradient(140deg, var(--green) 0%, var(--green-2) 100%);
  color: var(--cream);
  box-shadow: var(--shadow-soft);
}

.page-news .pn-pick__title {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 3.6vw, 1.9rem);
  line-height: 1.3;
  color: var(--gold-soft);
  margin: .7rem 0 0;
}

.page-news .pn-pick__text {
  margin: .75rem 0 0;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(247, 240, 228, .86);
}

.page-news .pn-pick__act {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 1.15rem;
}

.page-news .pn-pick__fig {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

/* ---------- 栏目索引 + 错位列表 ---------- */
.page-news .pn-index {
  padding-bottom: var(--pn-section-y);
}

.page-news .pn-index__grid {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2rem);
}

.page-news .pn-index__aside .eyebrow {
  margin-bottom: .7rem;
}

.page-news .pn-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .pn-index__link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .9rem;
  border: 1px solid var(--pn-line);
  border-radius: var(--pill);
  background: var(--cream-2);
  color: var(--ink);
  font-size: .86rem;
  text-decoration: none;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}

.page-news .pn-index__link em {
  font-style: normal;
  font-size: .72rem;
  line-height: 1;
  padding: .18rem .44rem;
  border-radius: var(--pill);
  background: rgba(30, 58, 50, .09);
  color: var(--rock);
  transition: background .3s var(--ease), color .3s var(--ease);
}

.page-news .pn-index__link:hover,
.page-news .pn-index__link:focus-visible {
  background: var(--red);
  border-color: var(--red);
  color: #FFF8EC;
}

.page-news .pn-index__link:hover em,
.page-news .pn-index__link:focus-visible em {
  background: rgba(255, 255, 255, .24);
  color: #FFF8EC;
}

.page-news .pn-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4.5vw, 3rem);
}

.page-news .pn-group {
  scroll-margin-top: 5.6rem;
}

.page-news .pn-group__head {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding-bottom: .55rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--pn-line);
}

.page-news .pn-group__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.12rem, 2.8vw, 1.4rem);
  color: var(--ink);
  transition: color .3s var(--ease);
}

.page-news .pn-group:target .pn-group__title {
  color: var(--red-deep);
}

.page-news .pn-group__count {
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--rock);
}

.page-news .pn-cards {
  display: grid;
  gap: clamp(.75rem, 1.8vw, 1.05rem);
}

.page-news .pn-card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: clamp(.95rem, 2.2vw, 1.35rem);
  border: 1px solid var(--pn-line);
  border-radius: var(--radius-md);
  background: var(--cream-2);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}

.page-news .pn-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: rgba(200, 52, 46, .3);
}

.page-news .pn-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .55rem;
}

.page-news .pn-card__when {
  margin-left: auto;
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--rock);
  white-space: nowrap;
}

.page-news .pn-card__thumb {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--cream);
  aspect-ratio: 4 / 3;
  margin-bottom: .1rem;
}

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

.page-news .pn-card__title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1rem, 2.6vw, 1.16rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  transition: color .3s var(--ease);
}

.page-news .pn-card:hover .pn-card__title {
  color: var(--red-deep);
}

.page-news .pn-card__sum {
  margin: 0;
  font-size: .89rem;
  line-height: 1.72;
  color: rgba(27, 26, 24, .78);
}

.page-news .pn-card__more {
  margin-top: .1rem;
}

.page-news .pn-card__more > summary {
  display: inline-flex;
  align-items: center;
  gap: .38rem;
  padding: .18rem 0;
  list-style: none;
  cursor: pointer;
  font-size: .82rem;
  font-weight: 600;
  color: var(--lake);
}

.page-news .pn-card__more > summary::-webkit-details-marker {
  display: none;
}

.page-news .pn-card__more > summary::after {
  content: "▾";
  font-size: .66rem;
  transition: transform .3s var(--ease);
}

.page-news .pn-card__more[open] > summary::after {
  transform: rotate(180deg);
}

.page-news .pn-card__more ul {
  margin: .5rem 0 0;
  padding-left: 1.05rem;
  font-size: .85rem;
  line-height: 1.72;
  color: rgba(27, 26, 24, .72);
}

.page-news .pn-card__more li {
  margin-bottom: .22rem;
}

/* ---------- 专题系列横向滚动 ---------- */
.page-news .pn-series {
  padding-block: var(--pn-section-y);
  background: var(--cream-2);
  border-block: 1px solid var(--pn-line);
}

.page-news .pn-series__title {
  margin: .5rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 3.8vw, 2.05rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-news .pn-series__sub {
  margin: .6rem 0 0;
  max-width: 34rem;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--rock);
}

.page-news .pn-rail {
  display: flex;
  gap: clamp(.7rem, 1.8vw, 1.05rem);
  margin: 1.5rem 0 0;
  padding: .2rem 0 1rem;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

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

.page-news .pn-rail::-webkit-scrollbar-thumb {
  background: rgba(30, 58, 50, .22);
  border-radius: var(--pill);
}

.page-news .pn-rail__item {
  flex: 0 0 clamp(14.5rem, 72vw, 18.5rem);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: clamp(.9rem, 2.2vw, 1.2rem);
  border: 1px solid var(--pn-line);
  border-radius: var(--radius-md);
  background: var(--cream);
}

.page-news .pn-rail__item:nth-child(5n+1) { border-top: 3px solid var(--red); }
.page-news .pn-rail__item:nth-child(5n+2) { border-top: 3px solid var(--gold); }
.page-news .pn-rail__item:nth-child(5n+3) { border-top: 3px solid var(--lake); }
.page-news .pn-rail__item:nth-child(5n+4) { border-top: 3px solid var(--moss); }
.page-news .pn-rail__item:nth-child(5n+5) { border-top: 3px solid var(--clay); }

.page-news .pn-rail__idx {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--gold-ink);
}

.page-news .pn-rail__name {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.04rem;
  color: var(--ink);
}

.page-news .pn-rail__desc {
  margin: 0;
  font-size: .84rem;
  line-height: 1.72;
  color: rgba(27, 26, 24, .74);
}

/* ---------- 更新节奏 ---------- */
.page-news .pn-cadence {
  padding-block: var(--pn-section-y);
}

.page-news .pn-cadence__grid {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2rem);
}

.page-news .pn-cadence__title {
  margin: .5rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 3.8vw, 1.95rem);
  line-height: 1.32;
  color: var(--ink);
}

.page-news .pn-cadence__text {
  margin: .75rem 0 0;
  font-size: .92rem;
  line-height: 1.78;
  color: rgba(27, 26, 24, .78);
}

.page-news .pn-rhythm {
  display: grid;
  gap: .7rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-news .pn-rhythm li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .7rem;
  align-items: start;
  font-size: .88rem;
  line-height: 1.72;
  color: rgba(27, 26, 24, .8);
}

.page-news .pn-rhythm b {
  padding: .16rem .55rem;
  border-radius: var(--pill);
  background: rgba(217, 164, 65, .18);
  color: var(--gold-ink);
  font-size: .72rem;
  letter-spacing: .1em;
  white-space: nowrap;
}

.page-news .pn-cadence__card {
  padding: clamp(1.2rem, 3vw, 1.9rem);
  border: 1px solid var(--pn-line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(110% 80% at 100% 0%, rgba(240, 217, 168, .55), transparent 62%),
    var(--cream-2);
  box-shadow: var(--shadow-soft);
}

.page-news .pn-cadence__cardTitle {
  margin: .55rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 3vw, 1.45rem);
  line-height: 1.4;
  color: var(--ink);
}

.page-news .pn-cadence__act {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 1.2rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .pn-pick__card {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
  }
}

@media (min-width: 860px) {
  .page-news .pn-hero__grid {
    grid-template-columns: 1.05fr .95fr;
    gap: clamp(2rem, 5vw, 3.6rem);
  }

  .page-news .pn-cadence__grid {
    grid-template-columns: 1.05fr .95fr;
    align-items: start;
    gap: clamp(2rem, 5vw, 3.4rem);
  }
}

@media (min-width: 780px) {
  .page-news .pn-cards {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-news .pn-card:nth-child(3n+1) { grid-column: 1 / span 7; }
  .page-news .pn-card:nth-child(3n+2) { grid-column: 6 / span 7; }
  .page-news .pn-card:nth-child(3n+3) { grid-column: 2 / span 7; }
}

@media (min-width: 980px) {
  .page-news .pn-index__grid {
    grid-template-columns: 14.5rem minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.4rem);
  }

  .page-news .pn-index__aside {
    position: sticky;
    top: 5.4rem;
  }

  .page-news .pn-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .pn-index__link {
    width: 100%;
    justify-content: space-between;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-card,
  .page-news .pn-card__title,
  .page-news .pn-group__title,
  .page-news .pn-index__link,
  .page-news .pn-index__link em,
  .page-news .pn-card__more > summary::after {
    transition: none;
  }

  .page-news .pn-card:hover {
    transform: none;
    box-shadow: none;
  }
}
<<<END>>>