.page-news {
  --news-gap: 22px;
  --news-stagger: 40px;
  --news-accent: var(--clay);
}

/* 首屏 */
.page-news .news-masthead {
  padding-top: 6px;
}

.page-news .news-lead {
  max-width: 46ch;
  margin: 14px 0 0;
  color: var(--bone);
  font-size: 17px;
  line-height: 1.75;
}

.page-news .news-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 40px;
  margin: 28px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 2px solid var(--line-strong);
}

.page-news .news-metrics li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 150px;
}

.page-news .news-metrics .stat-value {
  font-family: var(--mono);
  font-size: clamp(28px, 5vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--hot);
  letter-spacing: -0.02em;
}

.page-news .news-metrics li:nth-child(1) .stat-value { color: var(--orange); }
.page-news .news-metrics li:nth-child(2) .stat-value { color: var(--cyan); }
.page-news .news-metrics li:nth-child(3) .stat-value { color: var(--amber); }

.page-news .news-metrics .stat-label {
  max-width: 22ch;
  color: var(--rock);
  font-size: 13px;
  line-height: 1.55;
}

.page-news .news-hero {
  margin: 34px 0 0;
  border: 2px solid var(--line-strong);
  background: var(--corridor);
  box-shadow: var(--shadow-hard);
}

.page-news .news-hero img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .news-hero figcaption {
  padding: 12px 16px;
  border-top: 2px solid var(--line-strong);
  color: var(--rock);
  font-size: 13px;
  line-height: 1.6;
}

/* 版面骨架 */
.page-news .news-layout {
  display: grid;
  gap: 40px;
  margin-top: 48px;
}

.page-news .news-index {
  border-left: 3px solid var(--line-strong);
  padding-left: 16px;
}

.page-news .index-label {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock);
}

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

.page-news .index-link {
  display: block;
  position: relative;
  padding: 9px 0 9px 14px;
  color: var(--bone);
  font-size: 15px;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.page-news .index-link::before {
  content: "";
  position: absolute;
  left: -19px;
  top: 50%;
  width: 3px;
  height: 0;
  background: var(--clay);
  transform: translateY(-50%);
  transition: height 0.18s var(--ease);
}

.page-news .index-link:hover,
.page-news .index-link:focus-visible {
  color: var(--orange);
  padding-left: 20px;
}

.page-news .index-link:hover::before,
.page-news .index-link:focus-visible::before {
  height: 60%;
}

.page-news .index-link--active {
  color: var(--hot);
  border-left-color: var(--clay);
  font-weight: 600;
}

.page-news .index-note {
  margin-top: 26px;
  padding: 16px 16px 16px 18px;
  border: 2px solid var(--line);
  border-left: 5px solid var(--clay);
  background: var(--corridor);
}

.page-news .note-title {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-news .index-note p:last-child {
  margin: 0;
  color: var(--rock);
  font-size: 13px;
  line-height: 1.7;
}

/* 区块标题 */
.page-news .news-section {
  margin-top: 56px;
}

.page-news .news-section:first-child {
  margin-top: 0;
}

.page-news .news-section > h2 {
  margin: 0;
  padding-top: 18px;
  border-top: 2px solid var(--line-strong);
  font-family: var(--serif);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--hot);
}

.page-news .news-sub {
  max-width: 60ch;
  margin: 12px 0 26px;
  color: var(--rock);
  font-size: 15px;
  line-height: 1.75;
}

.page-news .mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}

/* 最近发布 */
.page-news .report-list {
  display: grid;
  gap: var(--news-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .report-card {
  position: relative;
  padding: 20px 22px 18px;
  border: 2px solid var(--line-strong);
  background: var(--corridor);
  box-shadow: var(--shadow-hard-sm);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .report-card:hover,
.page-news .report-card:focus-within {
  transform: translate(-2px, -2px);
  border-color: var(--orange);
  box-shadow: var(--shadow-hard);
}

.page-news .report-card::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--line-strong);
  transition: background 0.18s var(--ease);
}

.page-news .report-card:hover::after {
  background: var(--orange);
}

.page-news .report-top {
  margin: 0 0 10px;
}

.page-news .report-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(18px, 2.4vw, 21px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--hot);
  max-width: 34ch;
}

.page-news .report-card--lead .report-title {
  font-size: clamp(22px, 3.6vw, 30px);
  max-width: 26ch;
}

.page-news .report-card--lead {
  border-color: var(--line-strong);
  background: linear-gradient(140deg, var(--corridor) 0%, rgba(45, 125, 255, 0.12) 100%);
}

.page-news .report-summary {
  margin: 10px 0 0;
  max-width: 62ch;
  color: var(--rock);
  font-size: 14.5px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-news .report-hit {
  display: inline-block;
  margin: 14px 0 0;
  padding: 5px 12px;
  border: 1px dashed var(--orange);
  color: var(--amber);
  font-size: 13px;
}

.page-news .report-hit .mono {
  color: var(--orange);
}

.page-news .report-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 0;
  font-size: 12.5px;
  color: var(--rock);
}

.page-news .report-dot {
  color: var(--line-strong);
}

/* 五个常设栏目 */
.page-news .column-list {
  display: grid;
}

.page-news .column-item {
  display: grid;
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .column-num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.page-news .column-name {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--hot);
}

.page-news .column-desc {
  margin: 0;
  max-width: 46ch;
  color: var(--rock);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-news .column-meta {
  display: grid;
  gap: 6px;
}

.page-news .meta-line {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--rock);
}

.page-news .meta-key {
  display: inline-block;
  min-width: 3.4em;
  margin-right: 10px;
  color: var(--moss);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .columns-visual {
  margin: 30px 0 0;
  border: 2px solid var(--line-strong);
  background: var(--night);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .columns-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .columns-visual figcaption {
  padding: 12px 16px;
  border-top: 2px solid var(--line-strong);
  color: var(--rock);
  font-size: 13px;
  line-height: 1.6;
}

/* 专题系列 */
.page-news .series-grid {
  display: grid;
  gap: 26px;
}

.page-news .series-card {
  display: grid;
  border: 2px solid var(--line-strong);
  background: var(--corridor);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .series-figure {
  margin: 0;
  border-bottom: 2px solid var(--line-strong);
  background: var(--night);
}

.page-news .series-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .series-body {
  padding: 20px 22px 22px;
}

.page-news .series-body h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--hot);
}

.page-news .series-body > p {
  margin: 0;
  max-width: 52ch;
  color: var(--rock);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-news .series-details {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-news .series-details summary {
  cursor: pointer;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-news .series-details summary::marker {
  color: var(--orange);
}

.page-news .series-details summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-news .series-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .series-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--bone);
  font-size: 14px;
}

.page-news .series-list li .mono {
  color: var(--moss);
  font-size: 12.5px;
  white-space: nowrap;
}

.page-news .series-count {
  margin: 14px 0 0;
  color: var(--rock);
  font-size: 13px;
}

.page-news .series-count .mono {
  color: var(--hot);
  font-size: 17px;
  font-weight: 700;
}

/* 文末注释 */
.page-news .notes-grid {
  display: grid;
  gap: 20px;
}

.page-news .note-item {
  padding: 20px 20px 22px;
  border: 2px solid var(--line);
  border-top: 5px solid var(--moss);
  background: rgba(16, 50, 42, 0.6);
}

.page-news .note-item:nth-child(2) { border-top-color: var(--blue); }
.page-news .note-item:nth-child(3) { border-top-color: var(--orange); }

.page-news .note-num {
  display: block;
  margin-bottom: 12px;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--line-strong);
}

.page-news .note-item h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--hot);
}

.page-news .note-item p {
  margin: 0;
  color: var(--rock);
  font-size: 14px;
  line-height: 1.72;
}

/* 年度回顾 */
.page-news .annual-track {
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
  border-left: 2px solid var(--clay);
}

.page-news .annual-item {
  position: relative;
  padding: 0 0 26px 0;
}

.page-news .annual-item:last-child {
  padding-bottom: 0;
}

.page-news .annual-node {
  position: absolute;
  left: -33px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--night);
  border: 2px solid var(--clay);
}

.page-news .annual-body h3 {
  margin: 0 0 7px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--hot);
}

.page-news .annual-body p {
  margin: 0;
  max-width: 56ch;
  color: var(--rock);
  font-size: 14px;
  line-height: 1.7;
}

.page-news .annual-note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border: 2px solid var(--line);
  border-left: 5px solid var(--blue);
  color: var(--rock);
  font-size: 14px;
  line-height: 1.7;
}

/* 投稿与合作 */
.page-news .co-steps {
  display: grid;
  gap: 18px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}

.page-news .co-step {
  padding: 20px 20px 22px;
  border: 2px solid var(--line-strong);
  background: var(--corridor);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .co-step-num {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 10px;
  background: var(--moss);
  color: var(--bone);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-news .co-step h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--hot);
}

.page-news .co-step p {
  margin: 0;
  color: var(--rock);
  font-size: 14px;
  line-height: 1.7;
}

.page-news .co-contact {
  padding: 24px 22px 26px;
  border: 2px solid var(--line-strong);
  border-left: 6px solid var(--orange);
  background: linear-gradient(150deg, rgba(45, 125, 255, 0.14) 0%, rgba(11, 31, 26, 0.9) 62%);
  box-shadow: var(--shadow-hard-sm);
}

.page-news .co-contact-title {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--hot);
}

.page-news .co-line {
  margin: 0 0 9px;
  color: var(--bone);
  font-size: 14.5px;
  line-height: 1.6;
  word-break: break-word;
}

.page-news .co-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  color: var(--rock);
  font-size: 13.5px;
  line-height: 1.75;
}

/* 链接 */
.page-news a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 209, 255, 0.4);
}

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

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

.page-news .crumb-list a {
  border-bottom: none;
}

/* 响应式：平板起展开栏目标目 */
@media (min-width: 720px) {
  .page-news .column-item {
    grid-template-columns: 52px minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }

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

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

/* 响应式：桌面下左侧索引常驻，列表错落 */
@media (min-width: 1040px) {
  .page-news .news-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 52px;
  }

  .page-news .news-index {
    position: sticky;
    top: 26px;
    align-self: start;
  }

  .page-news .report-card:nth-child(3n + 2) {
    margin-left: var(--news-stagger);
  }

  .page-news .report-card:nth-child(3n) {
    margin-right: var(--news-stagger);
  }

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

  .page-news .series-card:nth-child(2) {
    margin-top: 34px;
  }
}

@media (min-width: 1280px) {
  .page-news .news-sub {
    font-size: 15.5px;
  }
}

/* 动效兼容 */
@media (prefers-reduced-motion: reduce) {
  .page-news .report-card,
  .page-news .index-link,
  .page-news .index-link::before,
  .page-news .report-card::after {
    transition: none;
  }

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