.page-news {
  --news-line: var(--stone);
  --news-dim: var(--rice-soft);
  --news-pad-y: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(56px, 8vw, 112px);
  color: var(--rice);
}

.page-news ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ---------- 页首 ---------- */
.page-news .news-masthead {
  padding: clamp(28px, 5vw, 64px) 0 clamp(20px, 3vw, 32px);
}

.page-news .news-masthead .crumbs {
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-news .news-masthead h1 {
  max-width: 16em;
  margin: 12px 0 0;
  font-size: clamp(32px, 7vw, 62px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--rice);
}

.page-news .news-masthead__lede {
  max-width: 38em;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--news-dim);
}

.page-news .news-masthead__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(20px, 4vw, 44px);
  margin-top: clamp(24px, 3.4vw, 38px);
  padding-top: clamp(18px, 2.6vw, 26px);
  border-top: 1px solid var(--news-line);
}

.page-news .news-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--rice);
  font-variant-numeric: tabular-nums;
}

.page-news .news-stat__label {
  font-size: 12px;
  color: var(--mist);
}

/* ---------- 通栏图 ---------- */
.page-news .news-banner {
  margin: clamp(20px, 3.4vw, 40px) 0 0;
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  object-fit: cover;
}

/* ---------- 本期重点 ---------- */
.page-news .news-lead {
  padding-top: var(--news-pad-y);
}

.page-news .news-lead__title,
.page-news .news-archive__title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-news .news-lead__title::before,
.page-news .news-archive__title::before {
  content: "";
  width: 26px;
  height: 3px;
  flex: none;
  background: var(--blaze);
}

.page-news .news-lead__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .lead-card {
  position: relative;
  padding: 22px 22px 24px;
  background: var(--panel);
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .lead-card:hover {
  transform: translateY(-2px);
}

.page-news .lead-card--recap { --accent: var(--blaze); }
.page-news .lead-card--updates { --accent: var(--cyan); }
.page-news .lead-card--series { --accent: var(--clay); }

.page-news .lead-card:hover {
  border-color: var(--accent);
}

.page-news .lead-card__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-news .lead-card__title {
  margin: 10px 0 0;
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--rice);
}

.page-news .lead-card--major .lead-card__title {
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.28;
}

.page-news .lead-card__excerpt {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-dim);
}

.page-news .lead-card__meta {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

/* ---------- 分类索引 ---------- */
.page-news .news-index {
  margin-top: var(--news-pad-y);
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 0;
}

.page-news .news-index__link {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--news-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--news-dim);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .news-index__link--recap:hover,
.page-news .news-index__link--recap:focus-visible {
  border-color: var(--blaze);
  color: var(--blaze);
}

.page-news .news-index__link--updates:hover,
.page-news .news-index__link--updates:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .news-index__link--series:hover,
.page-news .news-index__link--series:focus-visible {
  border-color: var(--clay);
  color: var(--clay);
}

.page-news .news-index__link--classroom:hover,
.page-news .news-index__link--classroom:focus-visible {
  border-color: var(--moss);
  color: var(--moss);
}

/* ---------- 分组 ---------- */
.page-news .news-group {
  padding-top: var(--news-pad-y);
  scroll-margin-top: calc(var(--header-nav-h) + 16px);
}

.page-news .news-group--recap { --accent: var(--blaze); }
.page-news .news-group--updates { --accent: var(--cyan); }
.page-news .news-group--series { --accent: var(--clay); }
.page-news .news-group--classroom { --accent: var(--moss); }

.page-news .group-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.page-news .group-head__mark {
  flex: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  object-fit: cover;
}

.page-news .group-head__body {
  flex: 1;
  min-width: 0;
}

.page-news .group-head__line {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-news .group-head__no {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5.4vw, 60px);
  font-weight: 700;
  line-height: 0.9;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.page-news .group-head__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--rice);
}

.page-news .group-head__rule {
  flex: 1;
  min-width: 20px;
  height: 1px;
  align-self: center;
  background: var(--news-line);
}

.page-news .group-head__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 条目 ---------- */
.page-news .post-list {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .post {
  position: relative;
  padding: 18px 20px 18px 22px;
  background: var(--panel);
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease);
}

.page-news .post::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: var(--accent, var(--mist));
  border-radius: 0 2px 2px 0;
  transition: width var(--dur) var(--ease);
}

.page-news .post:hover::before {
  width: 5px;
}

.page-news .post:hover {
  border-color: rgba(154, 166, 184, 0.42);
}

.page-news .post--recap { --accent: var(--blaze); }
.page-news .post--updates { --accent: var(--cyan); }
.page-news .post--series { --accent: var(--clay); }
.page-news .post--classroom { --accent: var(--moss); }

.page-news .post__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-news .post__title {
  margin: 9px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--rice);
}

.page-news .post__excerpt {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--news-dim);
}

.page-news .post__meta {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

/* ---------- 更早条目 ---------- */
.page-news .news-extra {
  padding-top: var(--news-pad-y);
}

.page-news .news-more__summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid var(--news-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--news-dim);
  cursor: pointer;
  list-style: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.page-news .news-more__summary::after {
  content: "+";
  font-size: 15px;
  line-height: 1;
  color: var(--blaze);
}

.page-news .news-more[open] .news-more__summary::after {
  content: "−";
}

.page-news .news-more__summary:hover,
.page-news .news-more__summary:focus-visible {
  border-color: var(--blaze);
  color: var(--rice);
}

.page-news .post-list--extra {
  margin-top: 20px;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  margin-top: clamp(56px, 8vw, 104px);
  padding: clamp(40px, 6vw, 72px) 0;
}

.page-news .cadence-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-news .cadence-intro__title {
  margin: 12px 0 0;
  font-size: clamp(23px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--rice);
}

.page-news .cadence-intro__text {
  max-width: 34em;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--news-dim);
}

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

.page-news .cadence-stats {
  display: grid;
  gap: 12px;
}

.page-news .archive-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .archive-item {
  padding: 20px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease);
}

.page-news .archive-item:hover {
  border-color: var(--clay);
}

.page-news .archive-item__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--rice);
}

.page-news .archive-item__count {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--clay);
  font-variant-numeric: tabular-nums;
}

.page-news .archive-item__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--news-dim);
}

/* ---------- 下一步 ---------- */
.page-news .news-next {
  padding-top: clamp(56px, 8vw, 104px);
}

.page-news .next-card {
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--news-line);
  border-left: 3px solid var(--blaze);
  border-radius: var(--radius);
  background: var(--panel);
}

.page-news .next-card__title {
  margin: 0;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 800;
  color: var(--rice);
}

.page-news .next-card__text {
  max-width: 36em;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--news-dim);
}

.page-news .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-news .news-lead__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .post-list {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-news .cadence-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .group-head {
    gap: 22px;
  }

  .page-news .group-head__mark {
    width: 56px;
    height: 56px;
  }
}

@media (min-width: 1000px) {
  .page-news .cadence-grid {
    grid-template-columns: 1.15fr 1fr;
    align-items: start;
  }

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

  .page-news .post {
    padding: 20px 24px 20px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .lead-card,
  .page-news .post,
  .page-news .post::before,
  .page-news .news-index__link,
  .page-news .news-more__summary,
  .page-news .archive-item {
    transition: none;
  }

  .page-news .lead-card:hover {
    transform: none;
  }
}