.page-news {
  --pn-space: clamp(56px, 8vw, 110px);
  --pn-card-shadow: 6px 6px 0 var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  padding-bottom: clamp(72px, 9vw, 120px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-news .news-head {
  padding: clamp(36px, 6vw, 68px) 0 clamp(30px, 5vw, 54px);
  border-bottom: 2px solid var(--ink);
}

.page-news .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-news .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

.page-news .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--gravel);
}

.page-news .breadcrumbs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-news .breadcrumbs a:hover,
.page-news .breadcrumbs a:focus-visible {
  border-bottom-color: var(--blue);
}

.page-news .news-head__title {
  margin: 12px 0 0;
}

.page-news .news-head__cols {
  margin-top: clamp(24px, 4vw, 42px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
}

.page-news .news-head__lede {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.85;
  color: var(--ink);
}

.page-news .news-head__pulse {
  margin: 0;
  border-top: 3px solid var(--ink);
}

.page-news .pulse-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--gravel);
}

.page-news .pulse-row dt {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

.page-news .pulse-row dd {
  margin: 0;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  border-bottom: 2px solid var(--blue);
  padding-bottom: 1px;
}

/* ---------- 分类索引条 ---------- */
.page-news .news-index {
  border-bottom: 2px solid var(--ink);
  background: var(--paper);
}

.page-news .news-index__inner {
  display: flex;
  gap: clamp(14px, 2.4vw, 34px);
  overflow-x: auto;
  padding-top: 14px;
  padding-bottom: 14px;
  scrollbar-width: thin;
}

.page-news .news-index a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding-bottom: 4px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-news .news-index a span {
  font-size: 11px;
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  color: var(--blue);
}

.page-news .news-index a:hover,
.page-news .news-index a:focus-visible,
.page-news .news-index a[aria-current] {
  border-bottom-color: var(--blue);
}

/* ---------- 章节骨架 ---------- */
.page-news .nf {
  padding-top: var(--pn-space);
}

.page-news .nf__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 48px);
}

.page-news .nf__index {
  display: block;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--blue);
}

.page-news .nf__title {
  margin: 10px 0 0;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-news .nf__lede {
  margin: 14px 0 0;
  max-width: 36ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-news .nf__head--wide .nf__lede {
  max-width: 54ch;
}

.page-news .nf__fig {
  margin: 22px 0 0;
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 var(--ink);
  background: var(--mint);
  overflow: hidden;
}

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

/* ---------- 头条 ---------- */
.page-news .lead-card {
  margin-top: clamp(24px, 4vw, 40px);
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: 10px 10px 0 var(--ink);
}

.page-news .lead-card__fig {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 3px solid var(--ink);
  background: var(--mint);
}

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

.page-news .lead-card__body {
  padding: clamp(20px, 4vw, 40px);
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}

.page-news .entry__time {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
  color: var(--graphite);
}

.page-news .lead-card__title {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2.15rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-news .lead-card__sum {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .lead-card__link {
  margin-top: 24px;
}

/* ---------- 时间线条目 ---------- */
.page-news .tl {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.page-news .tl::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--ink);
}

.page-news .tl__item {
  position: relative;
  padding-bottom: 20px;
}

.page-news .tl__item:last-child {
  padding-bottom: 0;
}

.page-news .tl__dot {
  position: absolute;
  left: -28px;
  top: 24px;
  width: 18px;
  height: 18px;
  box-sizing: border-box;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
}

.page-news .tl__dot--nav {
  background: var(--blue);
}

.page-news .tl__dot--ver {
  background: var(--grass);
}

.page-news .tl__dot--notice {
  background: var(--amber);
}

.page-news .entry {
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: clamp(16px, 3vw, 24px);
  box-shadow: var(--pn-card-shadow);
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-news .entry:hover {
  transform: translateX(6px);
  box-shadow: 2px 2px 0 var(--ink);
}

.page-news .entry__title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.48;
}

.page-news .entry__sum {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .entry__more {
  margin-top: 14px;
}

.page-news .entry__more > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  list-style: none;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

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

.page-news .entry__more > summary::after {
  content: "＋";
  font-size: 13px;
  line-height: 1;
}

.page-news .entry__more[open] > summary::after {
  content: "－";
}

.page-news .entry__more > summary:hover,
.page-news .entry__more > summary:focus-visible {
  background: var(--ink);
  color: var(--paper);
}

.page-news .entry__more p {
  margin: 14px 0 0;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
  background: var(--mint);
  border-left: 3px solid var(--grass);
}

/* ---------- 专题卡片 ---------- */
.page-news .topics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-news .topic {
  display: flex;
  flex-direction: column;
  padding: clamp(18px, 3vw, 26px);
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--pn-card-shadow);
  color: var(--ink);
  text-decoration: none;
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-news .topic:hover,
.page-news .topic:focus-visible {
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 var(--ink);
}

.page-news .topic__tag {
  align-self: flex-start;
  padding-bottom: 2px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--blue);
  border-bottom: 2px solid var(--blue);
}

.page-news .topic__title {
  margin: 14px 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.42;
}

.page-news .topic__desc {
  flex: 1 1 auto;
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--graphite);
}

.page-news .topic__more {
  margin-top: 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.page-news .topic:hover .topic__more {
  color: var(--blue);
}

/* ---------- 更新节奏 ---------- */
.page-news .rhythm {
  border: 3px solid var(--ink);
  background: var(--night);
  color: var(--paper);
  padding: clamp(24px, 5vw, 56px);
  box-shadow: 10px 10px 0 var(--blue);
}

.page-news .rhythm .nf__index {
  color: var(--paper);
}

.page-news .rhythm .nf__title {
  color: var(--paper);
}

.page-news .rhythm .nf__lede {
  color: var(--gravel);
  max-width: 52ch;
}

.page-news .rhythm__cols {
  margin-top: clamp(22px, 4vw, 34px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 44px);
}

.page-news .rhythm__stats {
  margin: 0;
  border-top: 2px solid var(--graphite);
}

.page-news .rhythm__stats > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--graphite);
}

.page-news .rhythm__stats dt {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gravel);
}

.page-news .rhythm__stats dd {
  margin: 0;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.page-news .rhythm__action p {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--gravel);
}

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

@media (min-width: 820px) {
  .page-news .rhythm__cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    align-items: start;
  }
}

@media (min-width: 880px) {
  .page-news .news-head__cols {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-news .nf__grid {
    grid-template-columns: minmax(0, 21rem) minmax(0, 1fr);
    gap: clamp(40px, 6vw, 88px);
    align-items: start;
  }

  .page-news .nf__lede {
    max-width: 30ch;
  }
}

@media (min-width: 1180px) {
  .page-news .nf__grid {
    grid-template-columns: minmax(0, 23rem) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .topic,
  .page-news .news-index a,
  .page-news .entry__more > summary {
    transition: none;
  }

  .page-news .entry:hover,
  .page-news .topic:hover,
  .page-news .topic:focus-visible {
    transform: none;
  }
}