.page-news {
  --news-pad: clamp(18px, 2.2vw, 28px);
  --news-gap: clamp(16px, 2vw, 26px);
  --news-rule: 1px solid var(--line);
}

/* ---------- 页头 ---------- */
.page-news .news-head {
  margin-block: clamp(22px, 4vw, 52px) 0;
  padding-bottom: clamp(24px, 3.5vw, 44px);
  border-bottom: var(--news-rule);
}

.page-news .news-head__title {
  margin: 14px 0 0;
  font-size: clamp(2.5rem, 9vw, 5.4rem);
  font-weight: 250;
  line-height: 0.95;
  letter-spacing: -0.025em;
}

.page-news .news-head__title--sm {
  font-size: clamp(2rem, 5.4vw, 3.4rem);
  letter-spacing: -0.02em;
}

.page-news .news-head__lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 64ch;
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-news .news-head__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(24px, 3.4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  border: var(--news-rule);
  background: var(--line);
}

.page-news .news-fact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 18px;
  background: var(--deep-sea);
}

.page-news .news-fact__num {
  font-family: var(--mono);
  font-size: clamp(1.3rem, 2.4vw, 1.85rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-news .news-fact__label {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--ink-mute);
}

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

/* ---------- 专题筛选 ---------- */
.page-news .news-filter {
  margin-block: clamp(20px, 3vw, 34px) 0;
}

.page-news .filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: var(--news-rule);
}

.page-news .filter-chip {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  font-size: 12px;
  letter-spacing: 0.14em;
  padding: 9px 14px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: var(--glass);
  color: var(--ink-soft);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    background-color 0.18s var(--ease);
}

.page-news .filter-chip:hover {
  color: var(--ink);
  border-color: var(--silver);
}

.page-news .filter-chip:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-news .filter-chip[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--night-black);
  font-weight: 700;
}

.page-news .filter-note {
  margin: 16px 0 0;
  max-width: 76ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-mute);
}

/* ---------- 封面横幅 ---------- */
.page-news .news-list {
  margin-block: clamp(24px, 3.6vw, 48px) 0;
}

.page-news .news-cover {
  position: relative;
  margin: 0 0 var(--news-gap);
  border: var(--news-rule);
  overflow: hidden;
  background: var(--night-black);
}

.page-news .news-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 800;
  object-fit: cover;
  filter: saturate(0.82) brightness(0.84);
}

.page-news .news-cover__cap {
  display: block;
  padding: 12px 16px;
  border-top: var(--news-rule);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
  background: var(--glass);
}

/* ---------- 条目网格 ---------- */
.page-news .news-grid {
  gap: var(--news-gap);
}

.page-news .news-card {
  display: block;
  position: relative;
  border: var(--news-rule);
  background: linear-gradient(180deg, rgba(10, 27, 51, 0.78), rgba(5, 12, 24, 0.74));
  padding: var(--news-pad);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.page-news .news-card:hover {
  border-color: var(--line-2);
}

.page-news .news-card[open] {
  border-color: var(--gold);
  background: linear-gradient(180deg, rgba(15, 34, 60, 0.9), rgba(5, 12, 24, 0.82));
}

.page-news .news-card__summary {
  display: flex;
  flex-direction: column;
  gap: 10px;
  cursor: pointer;
  list-style: none;
}

.page-news .news-card__summary::-webkit-details-marker {
  display: none;
}

.page-news .news-card__summary::marker {
  content: "";
}

.page-news .news-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-news .news-card .card__index {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-news .topic-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--silver);
  border: 1px solid var(--line-2);
  background: var(--glass);
  padding: 4px 9px;
  border-radius: 2px;
  white-space: nowrap;
}

.page-news .news-card[open] .topic-tag {
  color: var(--night-black);
  background: var(--gold);
  border-color: var(--gold);
  font-weight: 700;
}

.page-news .news-card .card__title {
  margin: 0;
  font-size: clamp(1.1rem, 1.9vw, 1.42rem);
  font-weight: 700;
  line-height: 1.36;
  color: var(--ink);
}

.page-news .news-card__excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-news .news-card .card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 10px;
  border-top: var(--news-rule);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
}

.page-news .news-card .card__foot::after {
  content: "展开 ＋";
  color: var(--gold);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.page-news .news-card[open] .card__foot::after {
  content: "收起 －";
}

.page-news .news-card__body {
  margin-top: 16px;
  padding-top: 16px;
  border-top: var(--news-rule);
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-soft);
}

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

.page-news .news-card__body p:last-child {
  margin-bottom: 0;
}

.page-news .news-card__media {
  margin: 0 0 16px;
  border: var(--news-rule);
  overflow: hidden;
  background: var(--violet);
}

.page-news .news-card__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.86) brightness(0.86);
}

.page-news .news-card__media--square img {
  aspect-ratio: 1 / 1;
}

/* ---------- 全宽数据横幅 ---------- */
.page-news .news-banner {
  margin-block: clamp(34px, 5vw, 68px);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm {
  margin-block: clamp(16px, 3vw, 32px) 0;
}

.page-news .section-head {
  padding-bottom: clamp(18px, 2.4vw, 28px);
  border-bottom: var(--news-rule);
}

.page-news .section-head__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .rhythm-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: rhythm;
}

.page-news .rhythm-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: clamp(20px, 2.6vw, 30px) 0;
  border-bottom: var(--news-rule);
}

.page-news .rhythm-item__interval {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--turf);
  text-transform: none;
}

.page-news .rhythm-item__title {
  margin: 0;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-news .rhythm-item p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .rhythm-foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-news .rhythm-foot a,
.page-news .editorial-panel__foot a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-deep);
  padding-bottom: 1px;
}

.page-news .rhythm-foot a:hover,
.page-news .editorial-panel__foot a:hover {
  color: var(--gold-deep);
}

@media (min-width: 760px) {
  .page-news .rhythm-item {
    grid-template-columns: 160px minmax(0, 1fr);
    column-gap: clamp(20px, 3vw, 40px);
  }

  .page-news .rhythm-item__interval {
    padding-top: 6px;
  }

  .page-news .rhythm-item p {
    grid-column: 2;
  }
}

/* ---------- 编辑与校验准则 ---------- */
.page-news .news-editorial {
  margin-block: clamp(34px, 5vw, 64px) 0;
}

.page-news .editorial-panel {
  border: var(--news-rule);
  border-top: 3px solid var(--gold);
  background: linear-gradient(180deg, rgba(43, 28, 77, 0.5), rgba(5, 12, 24, 0.7));
  padding: clamp(22px, 3.2vw, 44px);
}

.page-news .editorial-panel__title {
  margin: 12px 0 0;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-news .editorial-panel__lead {
  margin: 18px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-news .editorial-rules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: var(--news-rule);
}

.page-news .editorial-rule {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 18px 18px;
  background: rgba(5, 12, 24, 0.72);
}

.page-news .editorial-rule__num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold);
  padding-top: 2px;
}

.page-news .editorial-rule p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-news .editorial-panel__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
}

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

/* ---------- 引用与纠错 ---------- */
.page-news .news-cite {
  margin-block: clamp(34px, 5vw, 64px) clamp(30px, 4vw, 56px);
}

.page-news .cite-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .cite-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: var(--news-rule);
  background: var(--glass);
  padding: var(--news-pad);
}

.page-news .cite-card__title {
  margin: 0;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .cite-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
  flex: 1 1 auto;
}

.page-news .cite-card .btn {
  align-self: flex-start;
  font-size: 13px;
  letter-spacing: 0.08em;
}

@media (min-width: 860px) {
  .page-news .cite-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 响应式：非对称落位 ---------- */
@media (min-width: 900px) {
  .page-news .news-grid .col-4,
  .page-news .news-grid .col-5,
  .page-news .news-grid .col-7,
  .page-news .news-grid .col-8 {
    grid-column: span 12;
  }

  .page-news .news-grid--a > .news-card:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-news .news-grid--a > .news-card:nth-child(2) {
    grid-column: 8 / span 5;
  }

  .page-news .news-grid--a > .news-card:nth-child(3) {
    grid-column: 1 / span 5;
    margin-top: clamp(0px, 2vw, 26px);
  }

  .page-news .news-grid--a > .news-card:nth-child(4) {
    grid-column: 6 / span 7;
  }

  .page-news .news-grid--b > .news-card:nth-child(1) {
    grid-column: 1 / span 8;
  }

  .page-news .news-grid--b > .news-card:nth-child(2) {
    grid-column: 9 / span 4;
    margin-top: clamp(0px, 2vw, 26px);
  }

  .page-news .news-grid--b > .news-card:nth-child(3) {
    grid-column: 1 / span 5;
  }

  .page-news .news-grid--b > .news-card:nth-child(4) {
    grid-column: 6 / span 7;
    margin-top: clamp(0px, 2vw, 26px);
  }
}

/* ---------- 窄屏保护 ---------- */
@media (max-width: 480px) {
  .page-news .news-card__top {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 8px;
  }

  .page-news .news-card .card__foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-news .editorial-rule {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-chip,
  .page-news .news-card,
  .page-news .news-card__summary {
    transition: none;
  }
}