/* ==========================================================
   趋势观察 /trends/ —— 页面专属样式
   作用域：.page-news
   ========================================================== */

.page-news {
  background: var(--night);
  color: var(--sand);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-news .trend-hero {
  position: relative;
  padding: clamp(26px, 5vw, 52px) 0 clamp(30px, 5.5vw, 58px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(255, 90, 31, 0.16) 0%, rgba(255, 90, 31, 0) 48%),
    linear-gradient(180deg, var(--ink) 0%, var(--night) 100%);
  overflow: hidden;
}

.page-news .trend-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--gridline) 1px, transparent 1px),
    linear-gradient(90deg, var(--gridline) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.page-news .trend-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -12%;
  width: min(600px, 62%);
  height: 196%;
  transform: rotate(9deg);
  background: linear-gradient(180deg, rgba(232, 180, 74, 0.12), rgba(24, 215, 196, 0.035));
  border-left: 1px solid rgba(232, 180, 74, 0.26);
  pointer-events: none;
}

.page-news .trend-hero__inner {
  position: relative;
  z-index: 1;
}

.page-news .trend-hero__idx {
  margin-top: clamp(14px, 2.4vw, 26px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-news .trend-hero__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.5vw, 82px);
  line-height: 0.96;
  letter-spacing: -0.025em;
  color: var(--sand);
  position: relative;
  display: inline-block;
}

.page-news .trend-hero__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -14px;
  width: clamp(56px, 12vw, 120px);
  height: 4px;
  background: var(--orange);
}

.page-news .trend-hero__lede {
  max-width: 64ch;
  margin-top: clamp(28px, 4vw, 38px);
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.82;
  color: rgba(245, 241, 232, 0.78);
}

.page-news .trend-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  margin-top: clamp(26px, 4vw, 40px);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-news .trend-hero__fact {
  background: rgba(19, 42, 74, 0.72);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .trend-hero__fact-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-news .trend-hero__fact-lab {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--paper);
}

/* ---------- 通用区块骨架 ---------- */

.page-news .trend-block {
  padding: clamp(38px, 6vw, 72px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .trend-head {
  max-width: 68ch;
}

.page-news .trend-head__idx {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-news .trend-head__title {
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--sand);
}

.page-news .trend-head__note {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(245, 241, 232, 0.64);
}

/* ---------- 栏目索引 ---------- */

.page-news .trend-index .filter-bar {
  margin-top: clamp(20px, 3vw, 28px);
  flex-wrap: wrap;
}

/* ---------- 条目流 ---------- */

.page-news .trend-feed__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-news .entry {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--slate);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cat, var(--orange));
  transition: border-color var(--t) ease, background-color var(--t) ease;
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  background: #16304f;
}

.page-news .entry[data-cat~="战报速递"] {
  --cat: var(--orange);
}

.page-news .entry[data-cat~="数据观察"] {
  --cat: var(--cyan);
}

.page-news .entry[data-cat~="版本公告"] {
  --cat: var(--gold);
}

.page-news .entry[data-cat~="专题系列"] {
  --cat: var(--amber);
}

.page-news .entry__media {
  margin: 0;
  overflow: hidden;
  background: var(--ink);
}

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

.page-news .entry__body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 20px;
}

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

.page-news .entry__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--paper);
  white-space: nowrap;
}

.page-news .entry__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--sand);
}

.page-news .entry__desc {
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(245, 241, 232, 0.66);
}

.page-news .entry__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: auto;
  padding-top: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  border-top: 1px solid transparent;
  transition: max-height 280ms ease, opacity 220ms ease, padding-top 280ms ease, border-color 280ms ease;
}

.page-news .entry:hover .entry__stats,
.page-news .entry:focus-within .entry__stats {
  max-height: 140px;
  padding-top: 14px;
  opacity: 1;
  border-top-color: var(--line-soft);
}

.page-news .entry__stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-news .entry__stat dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-news .entry__stat dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-news .trend-empty {
  margin-top: 20px;
  padding: 34px 20px;
  border: 1px dashed var(--line);
  text-align: center;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--paper);
}

/* ---------- 数据观察 ---------- */

.page-news .observe__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-news .observe__lede {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(245, 241, 232, 0.72);
}

.page-news .observe__points {
  margin: 22px 0 0;
  display: grid;
  gap: 12px;
}

.page-news .observe__points li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.66);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .observe__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-news .observe__copy .btn {
  margin-top: 24px;
}

.page-news .observe__figure {
  margin: 0;
}

/* ---------- 版本与公告 ---------- */

.page-news .versions__wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 3.4vw, 36px);
}

.page-news .ver-list {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-news .ver {
  background: var(--slate);
  padding: 20px 18px;
  display: grid;
  gap: 12px;
}

.page-news .ver__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-news .ver__no {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-news .ver__phase {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--night);
  background: var(--gold);
  padding: 3px 8px;
}

.page-news .ver__body h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.45;
  color: var(--sand);
}

.page-news .ver__body p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(245, 241, 232, 0.66);
}

.page-news .versions__figure {
  margin: 0;
}

/* ---------- 专题系列 ---------- */

.page-news .series-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(258px, 80%);
  gap: 16px;
  margin-top: clamp(22px, 3.4vw, 34px);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
}

.page-news .series-card {
  scroll-snap-align: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
  background: var(--slate);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
}

.page-news .series-card__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-news .series-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.42;
  color: var(--sand);
}

.page-news .series-card__desc {
  font-size: 14px;
  line-height: 1.76;
  color: rgba(245, 241, 232, 0.66);
}

.page-news .series-card__items {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .series-card__items li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--sand);
  border: 1px solid var(--line);
  padding: 4px 9px;
}

/* ---------- 订阅与投稿 ---------- */

.page-news .trend-cta {
  border-bottom: none;
}

.page-news .cta-band {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.6vw, 40px);
  padding: clamp(26px, 4.6vw, 48px) clamp(20px, 3.6vw, 46px);
  background:
    linear-gradient(128deg, rgba(255, 90, 31, 0.24) 0%, rgba(255, 90, 31, 0.02) 58%),
    var(--slate);
  border: 1px solid var(--line);
  border-left: 5px solid var(--orange);
  overflow: hidden;
}

.page-news .cta-band::after {
  content: "";
  position: absolute;
  top: -60%;
  right: -14%;
  width: 46%;
  height: 220%;
  transform: rotate(10deg);
  background: linear-gradient(180deg, rgba(232, 180, 74, 0.1), rgba(24, 215, 196, 0.05));
  border-left: 1px solid rgba(232, 180, 74, 0.2);
  pointer-events: none;
}

.page-news .cta-band__copy,
.page-news .cta-band__actions {
  position: relative;
  z-index: 1;
}

.page-news .cta-band__title {
  margin-top: 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--sand);
}

.page-news .cta-band__text {
  margin-top: 14px;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.74);
}

.page-news .cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 窄屏 / 触屏适配 ---------- */

@media (hover: none) {
  .page-news .entry__stats {
    max-height: none;
    padding-top: 14px;
    opacity: 1;
    border-top-color: var(--line-soft);
  }
}

@media (min-width: 600px) {
  .page-news .ver {
    grid-template-columns: 128px 1fr;
    align-items: start;
    padding: 22px 22px;
  }

  .page-news .ver__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-news .cta-band {
    grid-template-columns: 1.5fr auto;
    align-items: center;
  }
}

@media (min-width: 760px) {
  .page-news .trend-feed__list {
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
  }

  .page-news .entry--lead {
    grid-column: span 12;
  }

  .page-news .entry--snap {
    grid-column: span 4;
  }

  .page-news .observe__grid {
    grid-template-columns: 1.06fr 1fr;
  }

  .page-news .versions__wrap {
    grid-template-columns: 1.25fr 1fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-news .entry--lead {
    flex-direction: row;
  }

  .page-news .entry--lead .entry__media {
    flex: 0 0 50%;
  }

  .page-news .entry--lead .entry__media img {
    aspect-ratio: auto;
    min-height: 320px;
  }

  .page-news .entry--lead .entry__body {
    padding: clamp(22px, 3vw, 36px);
  }

  .page-news .entry--lead .entry__title {
    font-size: clamp(22px, 2.6vw, 30px);
  }

  .page-news .series-rail {
    grid-auto-columns: minmax(280px, 1fr);
    scroll-snap-type: x proximity;
  }
}

@media (min-width: 1100px) {
  .page-news .entry--lead .entry__media {
    flex: 0 0 54%;
  }
}