/* ===== 内容观察 /insights/ ===== */
.page-news {
  background: var(--c-cream-050);
  color: var(--c-ink-900);
  font-family: var(--f-body);
  padding-bottom: 96px;
}

/* --- 首屏 --- */
.page-news .news-hero {
  position: relative;
  padding: 16px 0 48px;
}
.page-news .news-hero__grid {
  display: grid;
  gap: 40px;
  align-items: center;
}
.page-news .news-hero__title {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.022em;
  margin: 16px 0 0;
  color: var(--c-ink-900);
}
.page-news .news-hero__title em {
  font-style: normal;
  color: var(--c-orange-700);
}
.page-news .news-hero__lede {
  margin: 22px 0 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--c-slate-600);
  max-width: 34em;
}
.page-news .news-hero__facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  font-size: 14px;
  color: var(--c-slate-600);
}
.page-news .news-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.page-news .news-hero__facts .mono {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--c-cyan-600);
}
.page-news .news-hero__figure {
  position: relative;
  margin: 0 14px 14px 0;
}
.page-news .news-hero__figure::after {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border-radius: var(--r-l);
  background: linear-gradient(135deg, var(--c-orange-500), var(--c-cyan-600));
  opacity: 0.16;
  z-index: 0;
}
.page-news .news-hero__figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-l);
  border: 1px solid var(--c-line-200);
  object-fit: cover;
}

/* --- 双栏骨架 --- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: start;
}

/* --- 左侧索引 --- */
.page-news .news-index__title {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan-600);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-line-200);
}
.page-news .news-index__list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .news-index__list a {
  display: inline-block;
  padding: 6px 13px;
  border-radius: 999px;
  border: 1px solid var(--c-line-200);
  background: var(--c-cream-050);
  color: var(--c-slate-600);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-news .news-index__list a:hover {
  border-color: var(--c-orange-500);
  color: var(--c-orange-700);
  background: var(--c-orange-100);
}
.page-news .news-index__list a:focus-visible {
  outline: 2px solid var(--c-focus-500);
  outline-offset: 2px;
}
.page-news .news-index__note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex-wrap: wrap;
  padding: 16px 16px 14px;
  border: 1px solid var(--c-line-200);
  border-radius: var(--r-m);
  background: var(--c-sand-100);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-slate-600);
}
.page-news .news-index__note p {
  margin: 4px 0 0;
  flex: 1 1 100%;
}

/* --- 右栏板块 --- */
.page-news .news-section {
  padding: 44px 0;
  border-top: 1px solid var(--c-line-200);
}
.page-news .news-section:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-news .news-sec-head {
  margin-bottom: 22px;
}
.page-news .news-sec-head h2 {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.012em;
  color: var(--c-ink-900);
  margin: 10px 0 0;
}
.page-news .news-lead {
  margin: 0 0 26px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-slate-600);
  max-width: 36em;
}

/* --- 更新摘要 --- */
.page-news .news-summary {
  border-left: 2px solid var(--c-orange-500);
  padding-left: 20px;
}
.page-news .news-summary__lead {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-slate-600);
  max-width: 36em;
}
.page-news .news-summary__lead:last-child {
  margin-bottom: 0;
  color: var(--c-ink-900);
}

/* --- 时间线条目流 --- */
.page-news .entry-stream {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-news .entry-stream::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--c-line-200);
}
.page-news .entry {
  position: relative;
  padding: 0 0 26px 30px;
}
.page-news .entry:last-child {
  padding-bottom: 0;
}
.page-news .entry__node {
  position: absolute;
  left: 0;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  transition: transform 0.2s var(--ease);
}
.page-news .entry:hover .entry__node {
  transform: scale(1.35);
}
.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.page-news .entry__time {
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--c-mist-300);
  margin-left: auto;
}
.page-news .entry__title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--c-ink-900);
  margin: 9px 0 0;
}
.page-news .entry__desc {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-slate-600);
  max-width: 40em;
}

/* --- 标签 --- */
.page-news .tag {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.6;
  padding: 2px 9px;
  border-radius: 999px;
  white-space: nowrap;
}
.page-news .tag--tools {
  background: #E2F2F4;
  color: var(--c-cyan-600);
}
.page-news .tag--insight {
  background: var(--c-orange-100);
  color: var(--c-orange-700);
}
.page-news .tag--help {
  background: var(--c-sand-100);
  color: var(--c-slate-600);
}
.page-news .tag--brand {
  background: #E6F7F9;
  color: #0A5E6B;
}
.page-news .tag--legal,
.page-news .tag--contact {
  background: #EDE8E2;
  color: var(--c-slate-600);
}
.page-news .tag--type-new {
  background: transparent;
  border: 1px solid var(--c-orange-500);
  color: var(--c-orange-700);
}
.page-news .tag--type-rev {
  background: transparent;
  border: 1px solid var(--c-cyan-600);
  color: var(--c-cyan-600);
}

/* --- 专题系列 --- */
.page-news .series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-news .series-card {
  border: 1px solid var(--c-line-200);
  border-radius: var(--r-l);
  background: var(--c-cream-050);
  padding: 16px 16px 22px;
  transition: box-shadow 0.24s var(--ease), transform 0.24s var(--ease);
}
.page-news .series-card:hover {
  box-shadow: var(--shadow-float);
  transform: translateY(-2px);
}
.page-news .series-card__fig {
  margin: 0 0 18px;
  border-radius: var(--r-m);
  overflow: hidden;
  border: 1px solid var(--c-line-200);
}
.page-news .series-card__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.page-news .series-card__title {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.35;
  margin: 8px 0 0;
  color: var(--c-ink-900);
}
.page-news .series-card__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-slate-600);
}

/* --- 版本发布说明 --- */
.page-news .release-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-line-200);
}
.page-news .release {
  display: grid;
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-line-200);
}
.page-news .release__head {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-news .release__ver {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--c-ink-900);
}
.page-news .release__meta {
  margin: 0;
  display: grid;
  gap: 6px;
  font-size: 14.5px;
}
.page-news .release__meta dt {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-mist-300);
}
.page-news .release__meta dd {
  margin: 0;
  color: var(--c-slate-600);
  line-height: 1.7;
}

/* --- 订阅与回溯 --- */
.page-news .subscribe-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-news .subscribe-card {
  border: 1px solid var(--c-line-200);
  border-radius: var(--r-l);
  padding: 26px 22px 24px;
  background: linear-gradient(150deg, var(--c-orange-100) 0%, var(--c-cream-050) 62%);
}
.page-news .subscribe-card--cyan {
  background: linear-gradient(150deg, #E2F2F4 0%, var(--c-cream-050) 62%);
}
.page-news .subscribe-card__title {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.35;
  margin: 0;
  color: var(--c-ink-900);
}
.page-news .subscribe-card__desc {
  margin: 12px 0 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-slate-600);
}

/* --- 平板及以上 --- */
@media (min-width: 720px) {
  .page-news .news-hero {
    padding: 28px 0 72px;
  }
  .page-news .news-summary {
    padding-left: 26px;
  }
  .page-news .series-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .page-news .series-card:nth-child(2) {
    margin-top: 40px;
  }
  .page-news .series-card:nth-child(3) {
    margin-top: 80px;
  }
  .page-news .release {
    grid-template-columns: 180px 1fr;
    gap: 28px;
    align-items: start;
  }
  .page-news .release__meta {
    grid-template-columns: 84px 1fr;
    column-gap: 16px;
  }
  .page-news .subscribe-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* --- 桌面：左索引 sticky + 双栏 --- */
@media (min-width: 960px) {
  .page-news {
    padding-bottom: 140px;
  }
  .page-news .news-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 56px;
  }
  .page-news .news-layout {
    grid-template-columns: minmax(200px, 3fr) 7fr;
    gap: 60px;
  }
  .page-news .news-index {
    position: sticky;
    top: calc(var(--header-total) + 28px);
  }
  .page-news .news-index__list {
    display: block;
    gap: 0;
  }
  .page-news .news-index__list li {
    margin-bottom: 2px;
  }
  .page-news .news-index__list a {
    display: block;
    padding: 7px 0 7px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    font-size: 14px;
  }
  .page-news .news-index__list a:hover {
    background: transparent;
    border-left-color: var(--c-orange-500);
    color: var(--c-ink-900);
  }
  .page-news .news-section {
    padding: 56px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry__node,
  .page-news .series-card,
  .page-news .news-index__list a {
    transition: none;
  }
  .page-news .entry:hover .entry__node {
    transform: none;
  }
  .page-news .series-card:hover {
    transform: none;
  }
}