.page-news {
  --news-cut: 14px;
  --news-axis: 11px;
  --news-card-bg: var(--indigo-850);
  --news-pad: clamp(1rem, 3.2vw, 1.5rem);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
}

.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

.page-news p {
  margin: 0;
  color: var(--ink);
  line-height: 1.9;
  font-size: 1rem;
}

.page-news h1,
.page-news h2,
.page-news h3 {
  margin: 0;
  color: var(--ink);
}

.page-news h1 {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.5rem, 10vw, 5rem);
  line-height: 1.02;
  letter-spacing: 0.04em;
}

.page-news h2 {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  line-height: 1.24;
  letter-spacing: 0.02em;
}

.page-news h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(1.05rem, 3.4vw, 1.25rem);
  line-height: 1.5;
}

/* ---------- 面包屑 ---------- */

.page-news .news-crumbs {
  padding-top: clamp(1rem, 3vw, 2rem);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  padding-top: clamp(1.5rem, 4vw, 2.75rem);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: clamp(260px, 48vw, 460px);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(79, 163, 165, 0.16) 0%, rgba(16, 26, 51, 0) 62%),
    radial-gradient(90% 80% at 88% 8%, rgba(227, 178, 91, 0.14) 0%, rgba(16, 26, 51, 0) 60%);
  pointer-events: none;
}

.page-news .news-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(1.75rem, 5vw, 2.5rem);
}

.page-news .news-hero__main {
  display: grid;
  gap: 1.1rem;
  max-width: 42rem;
}

.page-news .news-hero__kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--gold);
  text-transform: uppercase;
  margin: 0;
}

.page-news .news-hero__lead {
  font-size: clamp(1rem, 2.6vw, 1.12rem);
  color: var(--ink);
  max-width: 36em;
}

.page-news .news-hero__lead--sub {
  color: var(--muted);
}

.page-news .news-hero__meta {
  align-self: end;
  border-left: 2px solid var(--line);
  padding-left: clamp(1rem, 3vw, 1.35rem);
}

.page-news .meta-list {
  margin: 0;
  display: grid;
  gap: 0.7rem;
}

.page-news .meta-list__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid rgba(46, 65, 102, 0.6);
  padding-bottom: 0.55rem;
}

.page-news .meta-list__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .meta-list dt {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

.page-news .meta-list dd {
  margin: 0;
  color: var(--gold-soft);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-align: right;
}

/* ---------- 快速跳转胶囊 ---------- */

.page-news .news-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: clamp(1.75rem, 5vw, 2.75rem);
}

.page-news .news-jump a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color 0.32s var(--ease), border-color 0.32s var(--ease), background-color 0.32s var(--ease);
}

.page-news .news-jump a:hover,
.page-news .news-jump a:focus-visible {
  color: var(--indigo-900);
  background: var(--gold);
  border-color: var(--gold);
}

/* ---------- 章节标题 ---------- */

.page-news .sec-head {
  display: grid;
  gap: 0.7rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.4rem);
  max-width: 46rem;
}

.page-news .sec-head--tight {
  margin-bottom: clamp(1.2rem, 3vw, 1.75rem);
}

.page-news .sec-head__kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--coral);
  margin: 0;
}

.page-news .sec-head__lead {
  color: var(--muted);
  font-size: 0.98rem;
}

/* ---------- 最近更新：条目折叠组 ---------- */

.page-news .recent-list {
  display: grid;
  gap: 0.7rem;
}

.page-news .entry {
  background: var(--news-card-bg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
  transition: border-color 0.32s var(--ease), background-color 0.32s var(--ease);
}

.page-news .entry:nth-child(even) {
  border-left-color: var(--teal);
}

.page-news .entry:hover {
  background: var(--indigo-700);
}

.page-news .entry__trigger {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22px;
  align-items: center;
  gap: 0.55rem 0.9rem;
  width: 100%;
  padding: var(--news-pad);
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-news .entry__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.7rem;
}

.page-news .entry__time {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-news .entry__title {
  display: block;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(1rem, 3vw, 1.15rem);
  line-height: 1.55;
  color: var(--ink);
}

.page-news .entry__trigger .accordion__mark {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  justify-self: end;
  width: 14px;
  height: 14px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 0.32s var(--ease);
}

.page-news .entry__trigger[aria-expanded="true"] .accordion__mark {
  transform: rotate(225deg);
}

.page-news .entry__panel {
  padding: 0 var(--news-pad) var(--news-pad);
  display: grid;
  gap: 0.75rem;
}

.page-news .entry__panel p {
  color: var(--muted);
  font-size: 0.95rem;
}

.page-news .entry__scope {
  font-family: var(--font-mono);
  font-size: 0.78rem !important;
  letter-spacing: 0.06em;
  color: var(--teal) !important;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line);
}

/* ---------- 时间线 ---------- */

.page-news .tl-banner {
  margin-bottom: clamp(1.75rem, 5vw, 3rem);
}

.page-news .tl-foot {
  margin-top: clamp(1.75rem, 5vw, 3rem);
}

.page-news .tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 2.25rem;
  position: relative;
  display: grid;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-news .tl::before {
  content: "";
  position: absolute;
  left: var(--news-axis);
  top: 0.6rem;
  bottom: 0.6rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(46, 65, 102, 0) 0%, var(--line) 10%, var(--line) 90%, rgba(46, 65, 102, 0) 100%);
}

.page-news .tl__item {
  position: relative;
}

.page-news .tl__dot {
  position: absolute;
  left: calc(-2.25rem + 5px);
  top: 1.05rem;
  width: 13px;
  height: 13px;
  background: var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.page-news .tl__item--release .tl__dot {
  background: var(--coral);
}

.page-news .tl__item--index .tl__dot {
  background: var(--teal);
}

.page-news .tl__item--series .tl__dot {
  background: var(--gold);
}

.page-news .tl__body {
  background: var(--news-card-bg);
  border-left: 2px solid var(--line);
  padding: var(--news-pad);
  display: grid;
  gap: 0.6rem;
  transition: border-color 0.32s var(--ease);
}

.page-news .tl__item--release .tl__body:hover {
  border-left-color: var(--coral);
}

.page-news .tl__item--index .tl__body:hover {
  border-left-color: var(--teal);
}

.page-news .tl__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.7rem;
  margin: 0;
}

.page-news .tl__era {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--gold-soft);
}

.page-news .tl__body p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* ---------- 栏目索引变更记录 ---------- */

.page-news .idx-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .idx-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-news .idx-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding: 1.15rem 0;
  border-top: 1px solid rgba(46, 65, 102, 0.7);
  transition: background-color 0.32s var(--ease);
}

.page-news .idx-item:last-child {
  border-bottom: 1px solid rgba(46, 65, 102, 0.7);
}

.page-news .idx-item:hover {
  background: rgba(27, 42, 74, 0.55);
}

.page-news .idx-item__when {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news .idx-item__body {
  display: grid;
  gap: 0.45rem;
}

.page-news .idx-item__body p {
  color: var(--muted);
  font-size: 0.95rem;
}

.page-news .idx-item__scope {
  font-family: var(--font-mono);
  font-size: 0.76rem !important;
  letter-spacing: 0.05em;
  color: var(--teal) !important;
}

.page-news .idx-figure {
  align-self: start;
}

/* ---------- 专题系列 ---------- */

.page-news .series-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  background: var(--news-card-bg);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease);
}

.page-news .series-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}

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

.page-news .series-card__body {
  display: grid;
  gap: 0.55rem;
  padding: var(--news-pad);
}

.page-news .series-card__body p {
  color: var(--muted);
  font-size: 0.95rem;
}

.page-news .series-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin: 0;
}

.page-news .series-card__count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-news .series-card:only-child .series-card__body {
  padding-bottom: var(--news-pad);
}

/* ---------- 更新节奏 ---------- */

.page-news .news-cadence {
  background: linear-gradient(180deg, rgba(27, 42, 74, 0) 0%, rgba(27, 42, 74, 0.55) 42%, rgba(27, 42, 74, 0) 100%);
}

.page-news .cadence-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-news .cadence-item {
  display: grid;
  gap: 0.5rem;
  padding: 1.25rem 0 1.25rem 1.1rem;
  border-left: 2px solid var(--line);
}

.page-news .cadence-item__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 6vw, 2.1rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--gold);
  line-height: 1.1;
}

.page-news .cadence-item p {
  color: var(--muted);
  font-size: 0.95rem;
}

.page-news .cadence-note {
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
  color: var(--muted);
  font-size: 0.98rem;
}

/* ---------- 继续前往 ---------- */

.page-news .news-next .divider {
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-news .next-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}

.page-news .next-card {
  display: grid;
  gap: 0.45rem;
  padding: var(--news-pad);
  background: var(--indigo-850);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: border-color 0.32s var(--ease), transform 0.32s var(--ease);
}

.page-news .next-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-news .next-card__title {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

.page-news .next-card__desc {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-news .next-card .tag {
  justify-self: start;
}

/* ---------- 平板 ---------- */

@media (min-width: 640px) {
  .page-news .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .idx-item {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: end;
    gap: clamp(2rem, 6vw, 5rem);
  }

  .page-news .tl {
    padding-left: 3rem;
    gap: 1.35rem;
  }

  .page-news .tl::before {
    left: var(--news-axis);
  }

  .page-news .tl__dot {
    left: calc(-3rem + 5px);
  }

  .page-news .idx-layout {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.15rem;
  }

  .page-news .series-card:first-child {
    grid-row: span 2;
  }

  .page-news .cadence-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }

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

  .page-news h1 {
    letter-spacing: 0.06em;
  }
}

/* ---------- 无障碍与动效退化 ---------- */

.page-news .accordion__button:focus-visible,
.page-news .news-jump a:focus-visible,
.page-news .next-card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__trigger .accordion__mark,
  .page-news .series-card,
  .page-news .next-card,
  .page-news .news-jump a {
    transition: none !important;
    transform: none !important;
  }
}