.page-news {
  --pn-cut: 16px;
  --pn-version: var(--cyan);
  --pn-stage: var(--cyan-deep);
  --pn-revise: var(--gold);
  --pn-feature: var(--archive);
  --pn-method: var(--silver);
  --pn-card-bg: linear-gradient(180deg, rgba(14, 22, 34, 0.78), rgba(7, 10, 17, 0.78));
  padding-bottom: clamp(48px, 8vw, 104px);
}

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

/* ---------- 首屏 ---------- */
.page-news .journal-hero {
  position: relative;
  padding-top: clamp(10px, 2vw, 20px);
}

.page-news .journal-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--wire);
}

.page-news .hero-fact {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--silver);
}

.page-news .hero-fact strong {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-news .journal-hero__media {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-news .journal-hero__media img {
  width: 100%;
  border: 1px solid var(--wire);
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-news .journal-hero__media figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--silver);
}

/* ---------- 章节辅助 ---------- */
.page-news .section-lede {
  max-width: 64ch;
  margin: 14px 0 30px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 栏目轨道 + 条目流 ---------- */
.page-news .journal-board {
  display: grid;
  gap: 26px;
}

.page-news .cat-rail__total {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.page-news .cat-rail__total strong {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-news .cat-list {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .cat-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-width: 168px;
  padding: 13px 18px;
  border: 1px solid var(--wire);
  border-left: 3px solid var(--pn-accent, var(--cyan));
  background: var(--pn-card-bg);
  color: var(--silver);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-news .cat-chip__count {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--pn-accent, var(--cyan));
}

.page-news .cat-chip:hover,
.page-news .cat-chip:focus-visible {
  color: var(--white);
  border-color: var(--pn-accent, var(--cyan));
  background: linear-gradient(180deg, rgba(20, 224, 216, 0.08), rgba(7, 10, 17, 0.85));
}

.page-news .cat-chip--version { --pn-accent: var(--pn-version); }
.page-news .cat-chip--stage { --pn-accent: var(--pn-stage); }
.page-news .cat-chip--revise { --pn-accent: var(--pn-revise); }
.page-news .cat-chip--feature { --pn-accent: var(--pn-feature); }
.page-news .cat-chip--method { --pn-accent: var(--pn-method); }

.page-news .entry-group {
  --pn-accent: var(--cyan);
  margin-bottom: 26px;
  scroll-margin-top: 96px;
}

.page-news .entry-group--stage { --pn-accent: var(--pn-stage); }
.page-news .entry-group--revise { --pn-accent: var(--pn-revise); }
.page-news .entry-group--feature { --pn-accent: var(--pn-feature); }
.page-news .entry-group--method { --pn-accent: var(--pn-method); }

.page-news .entry-group__head {
  position: relative;
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--white);
  border-bottom: 1px solid var(--wire);
}

.page-news .entry-group__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 58px;
  height: 2px;
  background: var(--pn-accent);
}

.page-news .entry-slant {
  height: 18px;
  margin: 0 0 26px;
  background: linear-gradient(96deg, transparent 0 18%, var(--wire) 18% 19%, transparent 19% 100%);
  opacity: 0.85;
}

.page-news .entry-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-news .entry {
  padding: 14px 16px 14px 18px;
  border: 1px solid var(--wire);
  border-left: 3px solid var(--pn-accent);
  background: var(--pn-card-bg);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: background var(--t-fast), border-color var(--t-fast);
}

.page-news .entry:hover,
.page-news .entry:focus-visible,
.page-news .entry:focus-within {
  background: linear-gradient(180deg, rgba(20, 224, 216, 0.07), rgba(7, 10, 17, 0.85));
  outline: none;
}

.page-news .entry__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

.page-news .entry__title {
  flex: 1 1 240px;
  margin: 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
}

.page-news .entry__when {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--pn-accent);
  white-space: nowrap;
}

.page-news .entry__sum {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-news .entry__detail {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.7;
  color: var(--white);
  opacity: 0;
  transition: max-height var(--t-base), opacity var(--t-base), margin var(--t-base);
}

.page-news .entry:hover .entry__detail,
.page-news .entry:focus-visible .entry__detail,
.page-news .entry:focus-within .entry__detail {
  max-height: 110px;
  margin-top: 8px;
  opacity: 0.78;
}

/* ---------- 专题系列 ---------- */
.page-news .container--wide {
  max-width: none;
}

.page-news .feature-rail {
  display: flex;
  gap: 16px;
  padding: 4px 2px 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 2px;
  -webkit-overflow-scrolling: touch;
}

.page-news .feature-rail:focus-visible {
  outline: 1px dashed var(--cyan-deep);
  outline-offset: 4px;
}

.page-news .feature-card {
  --pn-accent: var(--pn-feature);
  flex: 0 0 82%;
  scroll-snap-align: start;
  padding: 18px 18px 20px;
  border: 1px solid var(--wire);
  border-top: 2px solid var(--pn-accent);
  background: var(--pn-card-bg);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-news .feature-card--stage { --pn-accent: var(--pn-version); }
.page-news .feature-card--stage2 { --pn-accent: var(--pn-revise); }
.page-news .feature-card--feature { --pn-accent: var(--pn-feature); }

.page-news .feature-figure {
  margin: 0 0 14px;
}

.page-news .feature-figure img {
  width: 100%;
  border: 1px solid var(--wire);
  object-fit: cover;
}

.page-news .feature-card__cat {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--pn-accent);
}

.page-news .feature-card__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-news .feature-card__desc {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-news .feature-card__order {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--wire);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--white);
  opacity: 0.75;
}

/* ---------- 修订公告存档 ---------- */
.page-news .archive-layout {
  display: grid;
  gap: 24px;
}

.page-news .archive-list-wrap {
  display: grid;
  gap: 8px;
}

.page-news .season-archive {
  border: 1px solid var(--wire);
  background: var(--pn-card-bg);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-news .season-archive summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  transition: background var(--t-fast);
}

.page-news .season-archive summary::-webkit-details-marker {
  display: none;
}

.page-news .season-archive summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-news .season-archive[open] summary::after {
  content: "–";
  color: var(--gold);
}

.page-news .season-archive summary:hover,
.page-news .season-archive summary:focus-visible {
  background: rgba(20, 224, 216, 0.06);
  outline: none;
}

.page-news .season-archive__code {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.04em;
}

.page-news .season-archive__label {
  font-size: 13px;
  color: var(--silver);
}

.page-news .season-archive__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--silver);
}

.page-news .season-archive summary::after {
  margin-left: 14px;
}

.page-news .archive-list {
  margin: 0;
  padding: 4px 18px 18px;
  list-style: none;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--wire);
}

.page-news .archive-list li {
  padding-top: 8px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--silver);
}

.page-news .archive-code {
  display: inline-block;
  min-width: 74px;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--gold);
}

.page-news .archive-figure {
  margin: 0;
}

.page-news .archive-figure img {
  width: 100%;
  border: 1px solid var(--wire);
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-news .archive-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence-grid {
  display: grid;
  gap: 14px;
}

.page-news .cadence-card {
  --pn-accent: var(--cyan);
  padding: 22px 20px;
  border: 1px solid var(--wire);
  border-bottom: 3px solid var(--pn-accent);
  background: linear-gradient(160deg, rgba(14, 22, 34, 0.92), rgba(7, 10, 17, 0.82));
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-news .cadence-card--gold { --pn-accent: var(--pn-revise); }
.page-news .cadence-card--archive { --pn-accent: var(--pn-feature); }

.page-news .cadence-card__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--pn-accent);
}

.page-news .cadence-card__label {
  margin: 8px 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-news .cadence-card__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---------- 下一步 ---------- */
.page-news .next-grid {
  display: grid;
  gap: 12px;
}

.page-news .next-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--wire);
  background: var(--pn-card-bg);
  text-decoration: none;
  transition: border-color var(--t-fast), transform var(--t-fast), background var(--t-fast);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-news .next-card:hover,
.page-news .next-card:focus-visible {
  border-color: var(--cyan-deep);
  background: linear-gradient(180deg, rgba(20, 224, 216, 0.08), rgba(7, 10, 17, 0.86));
  transform: translateY(-2px);
  outline: none;
}

.page-news .next-card__kicker {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-news .next-card__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-news .next-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--silver);
}

.page-news .next-note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--gold);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .feature-card {
    flex: 0 0 62%;
  }

  .page-news .cadence-grid,
  .page-news .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .next-grid {
    gap: 14px;
  }
}

@media (min-width: 960px) {
  .page-news .journal-board {
    grid-template-columns: minmax(220px, 268px) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-news .cat-rail {
    position: sticky;
    top: 92px;
    padding-right: 4px;
  }

  .page-news .cat-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .cat-chip {
    width: 100%;
    min-width: 0;
    white-space: normal;
  }

  .page-news .entry__title {
    font-size: 16px;
  }

  .page-news .feature-card {
    flex: 0 0 380px;
  }

  .page-news .feature-card--lg {
    flex: 0 0 480px;
  }

  .page-news .archive-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-news .cadence-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .page-news .feature-card {
    flex: 0 0 420px;
  }

  .page-news .feature-card--lg {
    flex: 0 0 560px;
  }

  .page-news .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (hover: none) {
  .page-news .entry__detail {
    max-height: none;
    margin-top: 8px;
    opacity: 0.78;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__detail,
  .page-news .next-card,
  .page-news .cat-chip {
    transition: none;
  }

  .page-news .next-card:hover,
  .page-news .next-card:focus-visible {
    transform: none;
  }
}