.page-news {
  --news-gap: clamp(28px, 4vw, 64px);
  --news-fade: rgba(16, 31, 68, 0.45);
}

/* ---------- 首屏 ---------- */

.page-news .trend-masthead {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(36px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(14, 59, 58, 0.55), transparent 62%),
    radial-gradient(90% 100% at 100% 8%, rgba(16, 31, 68, 0.95), transparent 62%),
    var(--ink-900);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-news .trend-masthead::after {
  content: "";
  position: absolute;
  inset: auto -10% -60% auto;
  width: min(560px, 60vw);
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(138, 155, 192, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.page-news .trend-masthead .breadcrumbs {
  margin-bottom: clamp(24px, 4vw, 48px);
}

.page-news .trend-masthead__title {
  max-width: 16em;
  margin: 14px 0 18px;
  color: var(--bone);
  letter-spacing: -0.015em;
}

.page-news .trend-masthead__lede {
  max-width: 44em;
  color: var(--bone-soft);
  font-size: clamp(16px, 0.4vw + 15px, 18px);
}

.page-news .trend-masthead__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .trend-masthead__fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background: rgba(7, 20, 39, 0.9);
}

.page-news .trend-masthead__fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-news .trend-masthead__fact dd {
  margin: 0;
  color: var(--bone);
  font-size: 15px;
}

.page-news .trend-masthead__fact .num {
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 18px;
  font-variant-numeric: tabular-nums;
}

/* ---------- 主体骨架 ---------- */

.page-news .trend-body {
  padding-top: clamp(36px, 5vw, 72px);
  padding-bottom: clamp(56px, 8vw, 120px);
}

.page-news .trend-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
}

.page-news .trend-rail {
  border-top: 2px solid var(--copper);
  padding-top: 14px;
}

.page-news .trend-rail__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 12px;
}

.page-news .trend-rail__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 0 9px 12px;
  border-left: 2px solid var(--line);
  color: var(--slate);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.12s ease, color 0.12s ease;
}

.page-news .trend-rail__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--slate);
  transition: color 0.12s ease;
}

.page-news .trend-rail__link:hover,
.page-news .trend-rail__link:focus-visible {
  border-left-color: var(--copper);
  color: var(--bone);
}

.page-news .trend-rail__link:hover .trend-rail__idx,
.page-news .trend-rail__link:focus-visible .trend-rail__idx {
  color: var(--copper);
}

.page-news .trend-rail__link:focus-visible,
.page-news .trend-top:focus-visible,
.page-news .trend-guide__item:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* ---------- 分组抬头 ---------- */

.page-news .trend-group {
  margin-bottom: clamp(48px, 7vw, 96px);
}

.page-news .trend-group:last-child {
  margin-bottom: 0;
}

.page-news .trend-head {
  display: grid;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .trend-head__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--copper);
}

.page-news .trend-head__title {
  font-size: clamp(23px, 1.4vw + 18px, 33px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-news .trend-head__note {
  max-width: 40em;
  color: var(--slate);
  font-size: 15px;
  line-height: 1.7;
}

/* ---------- 栏目导览 ---------- */

.page-news .trend-guide {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-news .trend-guide__item {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px 24px;
  background: var(--news-fade);
  border: 1px solid var(--line);
  border-left: 2px solid var(--copper);
  transition: border-color 0.12s ease, transform 0.12s ease, box-shadow 0.12s ease;
}

.page-news .trend-guide__item--season { border-left-color: var(--copper); }
.page-news .trend-guide__item--data { border-left-color: var(--neon); }
.page-news .trend-guide__item--release { border-left-color: var(--flame); }
.page-news .trend-guide__item--desk { border-left-color: var(--slate); }

.page-news .trend-guide__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-news .trend-guide__title {
  font-size: 19px;
  font-weight: 800;
  color: var(--bone);
  letter-spacing: -0.005em;
}

.page-news .trend-guide__note {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--bone-soft);
}

/* ---------- 配图 ---------- */

.page-news .trend-figure {
  margin: clamp(24px, 3vw, 34px) 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
}

.page-news .trend-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(0.94) saturate(0.95);
}

.page-news .trend-figure figcaption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

.page-news .trend-figure--banner {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-news .trend-figure--inline {
  margin-top: clamp(22px, 3vw, 30px);
}

.page-news .trend-figure--portrait {
  margin-top: 0;
}

/* ---------- 条目流 ---------- */

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

.page-news .trend-entry {
  padding: 22px 0 24px;
  border-top: 1px solid var(--line);
  transition: border-color 0.12s ease;
}

.page-news .trend-list > .trend-entry:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .trend-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--slate);
}

.page-news .trend-entry__tag {
  padding-left: 9px;
  border-left: 2px solid var(--copper);
  color: var(--copper);
}

.page-news .trend-entry__title {
  margin: 10px 0 0;
  font-size: clamp(18px, 1.1vw + 14px, 23px);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--bone);
  transition: color 0.12s ease;
}

.page-news .trend-entry__summary {
  margin: 9px 0 0;
  max-width: 44em;
  color: var(--bone-soft);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-news .trend-entry__stage {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--slate);
}

.page-news .trend-entry__stage::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--neon);
  opacity: 0.75;
}

/* ---------- 专家笔谈双栏 ---------- */

.page-news .trend-desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 34px);
  margin-top: clamp(24px, 3vw, 34px);
  align-items: start;
}

.page-news .trend-list--desk .trend-entry:first-child {
  border-top: 1px solid var(--line);
}

/* ---------- 连载时间带 ---------- */

.page-news .trend-serial {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-news .trend-serial__item {
  position: relative;
  padding: 26px 0 0 0;
  border-top: 1px solid var(--line);
}

.page-news .trend-serial__item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--neon);
}

.page-news .trend-serial__code {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper);
}

.page-news .trend-serial__title {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--bone);
}

.page-news .trend-serial__note {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 回看与导出 ---------- */

.page-news .trend-group--review {
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 2px solid var(--copper);
  background:
    radial-gradient(100% 120% at 0% 0%, rgba(74, 18, 48, 0.55), transparent 58%),
    transparent;
}

.page-news .trend-review {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .trend-review__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 18px 20px;
  background: rgba(7, 20, 39, 0.92);
}

.page-news .trend-review__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper);
}

.page-news .trend-review__text {
  margin: 0;
  color: var(--bone-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-news .trend-review__lead {
  margin: clamp(24px, 3vw, 32px) 0 0;
  max-width: 46em;
  color: var(--slate);
  font-size: 15px;
  line-height: 1.8;
}

.page-news .trend-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 14px;
  margin: 20px 0 0;
}

/* ---------- 返回顶部 ---------- */

.page-news .trend-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 20;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(7, 20, 39, 0.86);
  color: var(--slate);
  text-decoration: none;
  transition: border-color 0.12s ease, color 0.12s ease, transform 0.12s ease;
}

.page-news .trend-top:hover {
  border-color: var(--flame);
  color: var(--flame);
  transform: translateY(-2px);
}

/* ---------- 悬停层次 ---------- */

@media (hover: hover) and (pointer: fine) {
  .page-news .trend-guide__item:hover {
    border-color: var(--line-strong);
    border-left-color: var(--flame);
    transform: translateY(-2px);
    box-shadow: var(--shadow-float);
  }

  .page-news .trend-entry:hover {
    border-top-color: rgba(255, 122, 41, 0.55);
  }

  .page-news .trend-entry:hover .trend-entry__title {
    color: #FFD2B0;
  }

  .page-news .trend-review__item:hover {
    background: rgba(16, 31, 68, 0.92);
  }
}

/* ---------- 中屏 ---------- */

@media (min-width: 640px) {
  .page-news .trend-masthead__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .trend-masthead__fact {
    display: grid;
    align-content: start;
    gap: 6px;
  }

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

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

/* ---------- 桌面：粘滞左栏 + 条目流 ---------- */

@media (min-width: 960px) {
  .page-news .trend-layout {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 84px);
    align-items: start;
  }

  .page-news .trend-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-news .trend-rail__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .trend-entry {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .trend-desk {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: clamp(32px, 3.5vw, 52px);
  }

  .page-news .trend-serial {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 clamp(18px, 2vw, 32px);
    position: relative;
  }

  .page-news .trend-serial::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: var(--line-strong);
  }

  .page-news .trend-serial__item {
    padding-top: 30px;
    border-top: 0;
  }

  .page-news .trend-serial__item::before {
    top: -4px;
  }
}

@media (min-width: 1180px) {
  .page-news .trend-guide {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 降低动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news .trend-guide__item,
  .page-news .trend-entry,
  .page-news .trend-entry__title,
  .page-news .trend-rail__link,
  .page-news .trend-top {
    transition: none;
  }

  .page-news .trend-guide__item:hover,
  .page-news .trend-top:hover {
    transform: none;
  }
}