.page-news {
  --news-aside: 250px;
  --news-radius: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-head);
  overflow-x: hidden;
}

.page-news .news-wrap {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-inline: var(--gutter);
  box-sizing: border-box;
}

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

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-news .breadcrumb__link {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

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

.page-news .breadcrumb__sep {
  margin: 0 8px;
  color: var(--line);
}

.page-news .breadcrumb__current {
  color: var(--cyan);
}

/* ---------- 首屏说明区（左对齐，不做居中大标题） ---------- */
.page-news .news-head {
  padding-top: 30px;
  padding-bottom: 30px;
}

.page-news .news-head .label {
  display: inline-block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-news .news-head h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-news .news-head__lede {
  margin: 0;
  max-width: 66ch;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-news .news-head__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .news-head__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .news-fact__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 4px;
}

.page-news .news-fact__text {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

/* ---------- 顶部氛围图 ---------- */
.page-news .news-band {
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(120deg, var(--green-900), var(--ink) 70%);
}

.page-news .news-band__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 500;
  object-fit: cover;
  filter: saturate(0.85);
}

.page-news .news-band__cap {
  padding: 10px var(--gutter) 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
}

/* ---------- 主布局：左侧目录 + 右侧条目流 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-top: 44px;
  padding-bottom: 72px;
}

/* 左侧窄栏目录 */
.page-news .news-index {
  border-left: 1px solid var(--line);
  padding-left: 16px;
}

.page-news .news-index .label {
  display: block;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}

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

.page-news .news-index__link {
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: baseline;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding-left 0.18s var(--ease), color 0.18s var(--ease);
}

.page-news .news-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--line);
}

.page-news .news-index__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-dim);
}

.page-news .news-index__range {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

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

.page-news .news-index__link:hover,
.page-news .news-index__link:focus-visible {
  padding-left: 6px;
}

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

.page-news .news-index__note {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 阶段分组 ---------- */
.page-news .stage {
  position: relative;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-news .stage + .stage {
  margin-top: 52px;
}

.page-news .stage::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 4px;
  bottom: 0;
  width: 2px;
  background: var(--line);
  transition: background 0.2s var(--ease);
}

.page-news .stage:target::before {
  background: var(--cyan);
}

.page-news .stage__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
}

.page-news .stage__tick {
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--cyan);
  transform: translateY(-4px);
}

.page-news .stage__head h2 {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .stage__range {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--signal-orange, var(--text-dim));
  color: var(--text-dim);
}

/* ---------- 条目 ---------- */
.page-news .entry {
  position: relative;
  padding: 22px 14px 22px 0;
  border-bottom: 1px solid var(--line);
  outline: none;
}

.page-news .entry::after {
  content: "";
  position: absolute;
  right: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--cyan);
  opacity: 0;
  transform: scaleY(0.3);
  transform-origin: top center;
  transition: opacity 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-news .entry:hover::after,
.page-news .entry:focus-visible::after,
.page-news .entry:focus-within::after {
  opacity: 1;
  transform: scaleY(1);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  transform: translateY(-2px);
  transition: transform 0.18s var(--ease);
}

.page-news .entry:focus-visible {
  box-shadow: 0 0 0 2px var(--orange);
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-bottom: 10px;
}

.page-news .entry .tag {
  border-radius: var(--news-radius);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-news .entry__stage {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-news .entry__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-news .entry__summary {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-news .entry__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  max-width: 64ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), margin-top 0.3s var(--ease);
}

.page-news .entry__thumb {
  margin: 16px 0 0;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, var(--green-900), var(--green-700));
  overflow: hidden;
}

.page-news .entry__thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-top: 56px;
  padding-bottom: 8px;
  border-top: 1px solid var(--line);
}

.page-news .news-series .label {
  display: inline-block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-news .news-series h2 {
  margin: 0 0 10px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-news .news-series__lede {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-news .series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-news .series {
  border: 1px solid var(--line);
  border-left: 3px solid var(--green-700);
  background: var(--green-900);
  border-radius: var(--news-radius);
  transition: border-left-color 0.18s var(--ease);
}

.page-news .series[open] {
  border-left-color: var(--cyan);
}

.page-news .series__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .series__summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-news .series__code {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .series__name {
  font-size: 15px;
  font-weight: 800;
  color: var(--text);
}

.page-news .series__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.page-news .series__desc {
  margin: 0;
  padding: 0 18px 14px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-news .series__list {
  margin: 0;
  padding: 0 18px 18px;
  list-style: none;
}

.page-news .series__list li + li {
  border-top: 1px solid var(--line);
}

.page-news .series__list a {
  display: block;
  padding: 10px 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-dim);
  text-decoration: none;
  border-left: 0 solid var(--cyan);
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.page-news .series__list a::before {
  content: "—";
  margin-right: 10px;
  color: var(--line);
}

.page-news .series__list a:hover,
.page-news .series__list a:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

/* ---------- 归档方式 ---------- */
.page-news .news-archive {
  margin-top: 56px;
  padding: 32px 20px 36px;
  background: linear-gradient(160deg, var(--green-900) 0%, var(--ink) 88%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.page-news .news-archive::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 88px;
  height: 88px;
  background: var(--indigo);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  opacity: 0.85;
}

.page-news .news-archive .label {
  display: inline-block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}

.page-news .news-archive h2 {
  margin: 0 0 24px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-news .archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-news .archive-item {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-news .archive-item h3 {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--cyan-soft);
}

.page-news .archive-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--text-dim);
}

.page-news .archive-item a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-news .archive-item a:hover,
.page-news .archive-item a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 纠错与线索提交 ---------- */
.page-news .news-fix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding-top: 48px;
  padding-bottom: 84px;
}

.page-news .news-fix .label {
  display: inline-block;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-news .news-fix h2 {
  margin: 0 0 12px;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-news .news-fix__body {
  border-left: 3px solid var(--amber);
  padding-left: 18px;
}

.page-news .news-fix__body p {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

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

.page-news .news-fix__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .news-fix__actions .btn {
  border-radius: var(--news-radius);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-news .news-layout {
    gap: 44px;
  }

  .page-news .news-band__cap {
    font-size: 11px;
  }

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

  .page-news .entry__title {
    font-size: 19px;
  }

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

  .page-news .archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 28px;
  }

  .page-news .news-fix {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-news .news-fix__actions {
    padding-bottom: 4px;
  }
}

/* ---------- 桌面：层叠目录结构 ---------- */
@media (min-width: 981px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-aside) minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
    padding-bottom: 96px;
  }

  .page-news .news-index {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 64px);
    overflow-y: auto;
  }

  .page-news .stage::before {
    left: -30px;
  }

  /* 条目补充摘要：桌面端悬停或聚焦后展开 */
  .page-news .entry:hover .entry__more,
  .page-news .entry:focus-within .entry__more,
  .page-news .entry:focus-visible .entry__more {
    max-height: 220px;
    opacity: 1;
    margin-top: 10px;
  }

  /* 缩略图错位出血 */
  .page-news .entry__thumb {
    max-width: 360px;
    margin-left: -14px;
  }

  .page-news .entry__thumb--right {
    margin-left: auto;
    margin-right: -14px;
  }

  .page-news .news-head h1 {
    font-size: clamp(44px, 4.6vw, 66px);
  }

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

  .page-news .news-archive {
    padding: 44px 36px 48px;
  }

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

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 699px) {
  .page-news .entry__more {
    max-height: none;
    opacity: 1;
    margin-top: 8px;
  }

  .page-news .stage::before {
    left: -12px;
  }

  .page-news .news-head__facts {
    gap: 16px 28px;
  }

  .page-news .news-fact__num {
    font-size: 22px;
  }

  .page-news .news-index__link {
    grid-template-columns: 24px 1fr;
  }

  .page-news .news-index__range {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry::after,
  .page-news .entry__more,
  .page-news .news-index__link,
  .page-news .series,
  .page-news .stage::before {
    transition: none;
  }

  .page-news .entry:hover,
  .page-news .entry:focus-within {
    transform: none;
  }
}

.page-news {
  --signal-orange: currentColor;
}