/* =========================================
   趋势观察 /trends/
   ========================================= */

.page-news {
  --news-card: #FFFFFF;
  --news-ink-soft: rgba(244, 241, 234, .78);
  --news-ink-line: rgba(244, 241, 234, .22);
}

/* ---------- 栏目头 ---------- */
.page-news .news-masthead {
  padding-block: clamp(18px, 3vw, 34px) clamp(34px, 5vw, 66px);
}

.page-news .news-masthead .crumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-news .news-masthead h1 {
  margin: 10px 0 0;
  max-width: 17em;
  font-size: clamp(30px, 4.6vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 900;
  color: var(--c-graphite);
}

.page-news .news-masthead .lead {
  margin: clamp(16px, 2.2vw, 26px) 0 0;
  max-width: 64ch;
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.85;
  color: var(--c-muted);
}

/* ---------- 标签胶囊 ---------- */
.page-news .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 36px);
}

.page-news .tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--pill);
  background: var(--news-card);
  color: var(--c-graphite);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease), transform .22s var(--ease);
}

.page-news .tag::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
  background: var(--tag-dot, var(--c-blue));
}

.page-news .tag--material { --tag-dot: var(--c-orange); }
.page-news .tag--param    { --tag-dot: var(--c-blue-deep); }
.page-news .tag--training { --tag-dot: var(--c-green); }
.page-news .tag--practice { --tag-dot: var(--c-red); }

.page-news .tag:hover,
.page-news .tag:focus-visible {
  border-color: var(--c-blue);
  box-shadow: 0 14px 30px -24px rgba(10, 91, 255, .95);
  transform: translateY(-2px);
}

/* ---------- 首屏通栏图 ---------- */
.page-news .news-masthead__figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
}

.page-news .news-masthead__media {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--c-ink);
  aspect-ratio: 2 / 1;
}

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

/* ---------- 置顶专题 ---------- */
.page-news .news-feature {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--c-ink);
  color: var(--c-paper);
  box-shadow: var(--shadow-2);
}

.page-news .news-feature::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 2;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-blue) 58%, var(--c-orange));
}

.page-news .news-feature__inner {
  display: grid;
  grid-template-columns: 1fr;
}

.page-news .news-feature__media {
  background: #04122a;
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

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

.page-news .news-feature__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(26px, 3.6vw, 52px);
}

.page-news .eyebrow--on-dark {
  color: var(--c-cyan);
}

.page-news .news-feature__body h2 {
  margin: 0;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #FFFFFF;
}

.page-news .news-feature__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--news-ink-soft);
}

.page-news .news-feature__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 4px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--news-ink-line);
  font-size: 13.5px;
  color: var(--news-ink-soft);
}

.page-news .news-feature__fact-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  color: var(--c-cyan);
  margin-right: 6px;
}

.page-news .news-feature__cta {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  margin-top: 6px;
  padding: 0 22px;
  border: 1px solid var(--news-ink-line);
  border-radius: var(--pill);
  color: var(--c-paper);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-news .news-feature__cta:hover,
.page-news .news-feature__cta:focus-visible {
  border-color: var(--c-cyan);
  background: rgba(0, 229, 255, .1);
}

/* ---------- 主体：左索引 + 右条目流 ---------- */
.page-news .news-board__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
}

.page-news .news-rail {
  border-top: 2px solid var(--c-graphite);
  padding-top: 20px;
}

.page-news .news-rail__pulse {
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-rail__pulse-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--c-line);
}

.page-news .news-rail__pulse-item dt {
  font-size: 13.5px;
  color: var(--c-muted);
}

.page-news .news-rail__pulse-item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-graphite);
}

.page-news .news-rail__pulse-num {
  font-size: 22px;
  color: var(--c-blue);
  margin-right: 4px;
}

.page-news .news-rail__note {
  margin: 22px 0 12px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 条目流 ---------- */
.page-news .news-stream {
  display: flex;
  flex-direction: column;
}

.page-news .news-stream__head {
  padding-bottom: clamp(16px, 2vw, 24px);
  border-bottom: 2px solid var(--c-graphite);
}

.page-news .news-stream__hint {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-news .entry {
  border-top: 1px solid var(--c-line);
  padding-block: clamp(22px, 3vw, 34px);
}

.page-news .news-stream__head + .entry {
  border-top: none;
}

.page-news .entry__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-muted);
}

.page-news .entry__no {
  color: var(--c-red);
  font-weight: 600;
  font-size: 13px;
}

.page-news .entry__tag {
  font-family: var(--font-sans);
  letter-spacing: 0;
}

.page-news .entry__time {
  margin-left: auto;
}

.page-news .entry__title {
  margin: 12px 0 0;
  font-size: clamp(21px, 2.2vw, 28px);
  line-height: 1.35;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--c-graphite);
}

.page-news .entry__excerpt {
  margin: 10px 0 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-news .entry__more {
  margin: 14px 0 0;
}

.page-news .entry__more .link-more {
  font-size: 14px;
  font-weight: 600;
}

.page-news .entry__media {
  margin: 0 0 18px;
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--c-silver);
  border: 1px solid var(--c-line);
}

.page-news .entry__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ---------- 横向专题带 ---------- */
.page-news .news-band {
  position: relative;
  overflow: hidden;
  margin-block: clamp(26px, 3.6vw, 46px);
  padding: clamp(26px, 3.4vw, 48px);
  border-radius: var(--radius-l);
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-news .news-band::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-blue) 58%, var(--c-orange));
}

.page-news .news-band::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, .3), transparent 68%);
  pointer-events: none;
}

.page-news .news-band--warranty::after {
  background: radial-gradient(circle, rgba(255, 107, 53, .3), transparent 68%);
}

.page-news .news-band__title {
  margin: 12px 0 0;
  max-width: 22em;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #FFFFFF;
}

.page-news .news-band__text {
  position: relative;
  z-index: 1;
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--news-ink-soft);
}

.page-news .news-band__cta {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  margin-top: 22px;
  padding: 0 22px;
  border: 1px solid var(--news-ink-line);
  border-radius: var(--pill);
  color: var(--c-paper);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-news .news-band__cta:hover,
.page-news .news-band__cta:focus-visible {
  border-color: var(--c-cyan);
  background: rgba(0, 229, 255, .1);
}

/* ---------- 收尾行动区 ---------- */
.page-news .news-closing__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 56px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-l);
  background: var(--c-silver);
}

.page-news .news-closing__panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-cyan) 48%, var(--c-orange));
}

.page-news .news-closing__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
}

.page-news .news-closing__title {
  margin: 12px 0 0;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--c-graphite);
}

.page-news .news-closing__text {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-news .news-closing__actions {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  gap: 12px;
}

.page-news .news-closing__note {
  flex-basis: 100%;
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-news .entry--media-left,
  .page-news .entry--media-right {
    display: grid;
    gap: clamp(20px, 3vw, 38px);
    align-items: start;
  }

  .page-news .entry--media-left {
    grid-template-columns: minmax(0, 238px) minmax(0, 1fr);
  }

  .page-news .entry--media-right {
    grid-template-columns: minmax(0, 1fr) minmax(0, 272px);
  }

  .page-news .entry__media {
    margin-bottom: 0;
  }
}

@media (min-width: 900px) {
  .page-news .news-feature__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-news .news-feature__media {
    aspect-ratio: auto;
  }

  .page-news .news-closing__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-news .news-board__inner {
    grid-template-columns: minmax(0, 226px) minmax(0, 1fr);
    gap: clamp(44px, 5vw, 84px);
  }

  .page-news .news-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

@media (max-width: 859px) {
  .page-news .entry__media {
    max-width: 520px;
  }

  .page-news .news-feature__facts {
    gap: 12px 18px;
  }
}

@media (max-width: 560px) {
  .page-news .tag {
    padding: 0 15px;
    font-size: 13.5px;
  }

  .page-news .entry__time {
    margin-left: 0;
  }

  .page-news .news-masthead__media {
    aspect-ratio: 4 / 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .tag,
  .page-news .news-feature__cta,
  .page-news .news-band__cta {
    transition: none;
  }

  .page-news .tag:hover,
  .page-news .tag:focus-visible {
    transform: none;
  }
}