.page-news {
  --news-sticky-offset: 96px;
  position: relative;
  background: var(--warm);
}

/* ---------- 刊头 ---------- */
.page-news .news-head {
  position: relative;
  overflow: hidden;
  padding-block: clamp(30px, 5vw, 58px) clamp(34px, 5vw, 66px);
}

.page-news .news-head__glow {
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 150%;
  background:
    radial-gradient(60% 46% at 22% 8%, rgba(255, 77, 46, 0.24), transparent 68%),
    radial-gradient(46% 40% at 88% 30%, rgba(42, 245, 214, 0.14), transparent 70%);
  pointer-events: none;
}

.page-news .news-head .wrap {
  position: relative;
  z-index: 1;
}

.page-news .news-head__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(22px, 3.4vw, 38px);
}

.page-news .news-head__lead {
  max-width: 46ch;
}

.page-news .news-head__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--chalk);
  text-wrap: balance;
}

.page-news .news-head__lede {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-news .news-head__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.page-news .news-stats__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  background: rgba(11, 27, 43, 0.72);
}

.page-news .news-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--flame);
}

.page-news .news-stats__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--on-dark-dim);
}

.page-news .news-head__figure {
  margin-top: clamp(28px, 4vw, 46px);
}

/* ---------- 阶段刻度与章节索引 ---------- */
.page-news .news-toc {
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding-block: clamp(20px, 3vw, 30px);
}

.page-news .news-toc__hint {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--on-dark-dim);
}

.page-news .stage-scale {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .stage-scale__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--on-dark);
  white-space: nowrap;
}

.page-news .news-toc__list {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-dark);
}

.page-news .news-toc__cell {
  background: rgba(11, 27, 43, 0.6);
}

.page-news .news-toc__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "no label"
    "no meta";
  align-items: center;
  gap: 2px 12px;
  padding: 14px 16px;
  color: var(--chalk);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-news .news-toc__link:hover,
.page-news .news-toc__link:focus-visible,
.page-news .news-toc__link[aria-current="true"] {
  border-left-color: var(--flame);
  background: rgba(255, 77, 46, 0.1);
}

.page-news .news-toc__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--neon);
}

.page-news .news-toc__label {
  grid-area: label;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-news .news-toc__meta {
  grid-area: meta;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--on-dark-dim);
}

/* ---------- 章节标题 ---------- */
.page-news .section-cap {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-news .section-cap--dark {
  border-bottom-color: var(--line-dark);
}

.page-news .section-cap__title {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-news .section-cap--dark .section-cap__title {
  color: var(--chalk);
}

.page-news .section-cap__text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-mid);
}

.page-news .section-cap--dark .section-cap__text {
  color: var(--on-dark);
}

/* ---------- 条目日志 ---------- */
.page-news .news-log {
  padding-block: clamp(44px, 6vw, 84px);
}

.page-news .log-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .log-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.22s ease;
}

.page-news .log-item:hover {
  background: rgba(255, 77, 46, 0.045);
}

.page-news .log-item__no {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--concrete);
  transition: color 0.22s ease;
}

.page-news .log-item:hover .log-item__no,
.page-news .log-item:focus-within .log-item__no {
  color: var(--flame);
}

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

.page-news .log-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 3px 9px;
  color: var(--text-mid);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-news .log-time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--neon-ink);
}

.page-news .log-item__title {
  margin: 0;
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: -0.005em;
  color: var(--text);
}

.page-news .log-item__text {
  margin: 10px 0 0;
  max-width: 72ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-news .log-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-news .log-item__tags span {
  padding: 2px 8px;
  color: var(--text-mid);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-block: clamp(44px, 6vw, 84px);
  border-top: 1px solid var(--line);
}

.page-news .series-layout {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-news .series-stack {
  display: grid;
  gap: 14px;
}

.page-news .series-card {
  padding: 20px 20px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--flame);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.22s ease, border-left-color 0.22s ease;
}

.page-news .series-card:hover {
  transform: translateY(-2px);
  border-left-color: var(--ember);
}

.page-news .series-card__code {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--neon-ink);
}

.page-news .series-card__title {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 23px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .series-card__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-news .series-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-mid);
}

.page-news .series-card__tags span {
  padding: 2px 8px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
}

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

/* ---------- 版本迭代日志 ---------- */
.page-news .news-versions {
  padding-block: clamp(44px, 6vw, 84px);
}

.page-news .version-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-news .version-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--line-dark);
}

.page-news .version-row__no {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--flame);
}

.page-news .version-row__stage {
  align-self: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-news .version-row__text {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 70ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--on-dark);
}

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

/* ---------- 订阅与返回档案 ---------- */
.page-news .news-follow {
  padding-block: clamp(44px, 6vw, 88px);
  border-top: 1px solid var(--line-dark);
}

.page-news .follow-layout {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-news .follow-panel {
  padding: 22px 20px 24px;
  background: rgba(30, 58, 95, 0.5);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
}

.page-news .follow-panel__title {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 23px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--chalk);
}

.page-news .follow-panel__text {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--on-dark);
}

.page-news .follow-panel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-news .follow-index {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.page-news .follow-index__link {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 16px 18px;
  background: rgba(11, 27, 43, 0.66);
  color: var(--chalk);
  text-decoration: none;
  transition: background-color 0.2s ease, padding-left 0.2s ease;
}

.page-news .follow-index__link:hover,
.page-news .follow-index__link:focus-visible {
  background: rgba(255, 77, 46, 0.12);
  padding-left: 24px;
}

.page-news .follow-index__label {
  font-size: 15px;
  font-weight: 700;
}

.page-news .follow-index__note {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}

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

/* ---------- 图片统一处理 ---------- */
.page-news .figure__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

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

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

  .page-news .log-item {
    grid-template-columns: 84px 1fr;
    gap: 0 20px;
  }

  .page-news .log-item__no {
    padding-top: 2px;
  }

  .page-news .version-row {
    grid-template-columns: 96px 200px 1fr;
    align-items: center;
  }

  .page-news .version-row__text {
    grid-column: auto;
  }
}

@media (min-width: 1000px) {
  .page-news .news-head__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.85fr);
    align-items: end;
  }

  .page-news .news-head__lead {
    max-width: 52ch;
  }

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

  .page-news .news-toc__copy {
    display: none;
  }

  .page-news .series-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 34px;
  }

  .page-news .series-figure {
    position: sticky;
    top: var(--news-sticky-offset);
  }

  .page-news .follow-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
    gap: 34px;
  }
}