.page-news {
  padding-block: 20px 80px;
  color: var(--white);
  font-family: var(--sans);
}

.page-news .news-shell {
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 6vw, 72px);
}

.page-news .section {
  margin-block: 0;
}

.page-news .section-head {
  margin-bottom: 22px;
}

.page-news .section-title {
  margin: 6px 0 0;
}

.page-news .section-note {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 页首 ---------- */

.page-news .news-intro h1 {
  margin: 10px 0 0;
  max-width: 620px;
  font-size: clamp(30px, 5.4vw, 56px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-news .news-lede {
  margin: 18px 0 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.8;
  color: var(--mist);
}

.page-news .news-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 42px;
  margin: 28px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--steel);
  list-style: none;
}

.page-news .news-facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 92px;
}

.page-news .news-facts .stat-value {
  font-family: var(--mono);
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--lava);
}

.page-news .news-facts .stat-label {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--gray);
}

/* ---------- 栏目筛选 ---------- */

.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 16px 0;
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}

.page-news .news-filters .chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-news .news-filters .chip[aria-pressed="true"]:hover {
  border-color: var(--cyan);
}

/* ---------- 条目通用 ---------- */

.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .entry-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--gray);
}

.page-news .entry-time .dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grass);
}

.page-news .entry {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  border-left: 3px solid transparent;
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  transform: translateY(-2px);
  border-left-color: var(--cyan);
}

.page-news .entry-title {
  margin: 0;
  font-size: clamp(18px, 1.9vw, 22px);
  font-weight: 800;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-news .entry-excerpt {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--gray);
}

.page-news .entry-read {
  margin: 2px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist);
  opacity: 0.5;
  transition: opacity var(--t-base) var(--ease), color var(--t-base) var(--ease);
}

.page-news .entry:hover .entry-read,
.page-news .entry:focus-within .entry-read {
  opacity: 1;
  color: var(--cyan);
}

.page-news .entry-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--steel);
  aspect-ratio: 12 / 7;
}

.page-news .entry-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 内容流布局 ---------- */

.page-news .stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .stream--pair {
  margin-top: 18px;
}

/* ---------- 主推条目 ---------- */

.page-news .news-feature {
  overflow: hidden;
  padding: 0;
  border-left: 4px solid var(--lava);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-news .news-feature .feature-media {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  aspect-ratio: 3 / 2;
}

.page-news .news-feature .feature-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .news-feature .feature-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 3vw, 34px);
}

.page-news .feature-title {
  margin: 0;
  font-size: clamp(21px, 2.4vw, 30px);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-news .feature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

/* ---------- 使用记录 ---------- */

.page-news .record-banner {
  position: relative;
  margin: 0 0 28px;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--steel);
  aspect-ratio: 16 / 9;
}

.page-news .record-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .record-track {
  margin: 0 0 26px;
  padding: 0 0 0 24px;
  list-style: none;
  border-left: 1px solid var(--steel);
  display: grid;
  gap: 14px;
}

.page-news .record-node {
  position: relative;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--navy);
  border: 1px solid transparent;
  transition: border-color var(--t-base) var(--ease), background var(--t-base) var(--ease);
}

.page-news .record-node::before {
  content: "";
  position: absolute;
  top: 22px;
  left: -30px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--sand);
  transition: background var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-news .record-node:hover,
.page-news .record-node:focus-within {
  border-color: var(--steel);
  background: color-mix(in srgb, var(--navy) 82%, var(--cyan) 18%);
}

.page-news .record-node:hover::before,
.page-news .record-node:focus-within::before {
  background: var(--lava);
  border-color: var(--lava);
}

.page-news .record-phase {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-news .record-desc {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
}

.page-news .record-note {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 更新节奏 ---------- */

.page-news .cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-news .cadence-copy > p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .cadence-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-news .cadence-list li {
  display: grid;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid var(--steel);
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .cadence-tag {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--lava);
}

.page-news .cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-news .cadence-side {
  padding: clamp(20px, 2.6vw, 30px);
  border-radius: var(--radius-lg);
  background: var(--navy);
  border: 1px solid var(--steel);
}

.page-news .side-title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 800;
  color: var(--white);
}

.page-news .cadence-side > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--gray);
}

.page-news .side-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .side-list li {
  display: grid;
  gap: 4px;
  padding-top: 10px;
  border-top: 1px dashed var(--steel);
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-news .side-key {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-news .cadence-side .btn {
  margin-top: 22px;
}

/* ---------- 专题轨道 ---------- */

.page-news .topic-block {
  margin-top: clamp(36px, 5vw, 56px);
}

.page-news .topic-heading {
  margin: 6px 0 18px;
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-news .topic-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(232px, 78%);
  gap: 16px;
  overflow-x: auto;
  padding: 4px 4px 16px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-news .topic-rail::-webkit-scrollbar {
  height: 6px;
}

.page-news .topic-rail::-webkit-scrollbar-track {
  background: var(--navy);
  border-radius: var(--radius-pill);
}

.page-news .topic-rail::-webkit-scrollbar-thumb {
  background: var(--steel);
  border-radius: var(--radius-pill);
}

.page-news .topic-card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--navy);
  border: 1px solid var(--steel);
  text-decoration: none;
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-news .topic-card:hover,
.page-news .topic-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.page-news .topic-tag {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-news .topic-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-news .topic-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-news .topic-count {
  margin-top: auto;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--lava);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-news .news-filters {
    gap: 12px;
  }

  .page-news .stream--pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 24px;
  }

  .page-news .record-banner {
    aspect-ratio: 14 / 5;
  }

  .page-news .record-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
    border-left: 0;
    padding-left: 0;
  }

  .page-news .record-node {
    padding-left: 20px;
    border-left: 1px solid var(--steel);
  }

  .page-news .record-node::before {
    top: 20px;
    left: -6.5px;
  }
}

@media (min-width: 960px) {
  .page-news {
    padding-block: 28px 96px;
  }

  .page-news .news-feature {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
    border-left-width: 4px;
  }

  .page-news .news-feature .feature-media {
    aspect-ratio: auto;
    min-height: 100%;
  }

  .page-news .news-feature .feature-body {
    justify-content: center;
  }

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

  .page-news .stream > .entry--wide {
    grid-column: 1 / -1;
  }

  .page-news .stream > .entry--drop {
    margin-top: 56px;
  }

  .page-news .entry--lead {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    grid-template-areas:
      "media meta"
      "media title"
      "media excerpt"
      "media read";
    align-content: center;
    column-gap: 28px;
  }

  .page-news .entry--lead .entry-media {
    grid-area: media;
    aspect-ratio: 4 / 3;
    align-self: stretch;
  }

  .page-news .entry--lead .entry-meta {
    grid-area: meta;
  }

  .page-news .entry--lead .entry-title {
    grid-area: title;
  }

  .page-news .entry--lead .entry-excerpt {
    grid-area: excerpt;
  }

  .page-news .entry--lead .entry-read {
    grid-area: read;
  }

  .page-news .stream--pair > .entry--drop {
    margin-top: 0;
  }

  .page-news .cadence-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-news .topic-rail {
    grid-auto-columns: 292px;
  }
}

@media (min-width: 960px) and (hover: hover) {
  .page-news .record-note {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--t-base) var(--ease), opacity var(--t-base) var(--ease),
      margin-top var(--t-base) var(--ease);
  }

  .page-news .record-node:hover .record-note,
  .page-news .record-node:focus-within .record-note {
    max-height: 10em;
    margin-top: 8px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .topic-card,
  .page-news .record-node,
  .page-news .entry-read,
  .page-news .news-filters .chip {
    transition: none;
  }

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