/* ============================================
   趋势观察 /trends/
   作用域：.page-news
   ============================================ */

.page-news {
  --news-gap: clamp(20px, 3vw, 36px);
  --news-band: rgba(22, 35, 59, 0.5);
}

/* ---------- 面包屑 ---------- */
.page-news .crumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 7vw, 84px);
  border-bottom: 1px solid var(--hair);
}

.page-news .news-hero__lead .eyebrow {
  display: block;
  margin: 0 0 14px;
}

.page-news .news-hero h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-size: clamp(30px, 6.2vw, 52px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-news .news-hero .lead {
  max-width: 56ch;
  color: var(--frost);
  opacity: 0.86;
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(22px, 3.4vw, 30px) 0 0;
}

.page-news .news-hero__figure {
  padding: clamp(14px, 2vw, 20px);
  background: var(--ink-2);
  border: 2px solid var(--hair);
  box-shadow: var(--shadow-hard);
}

.page-news .season-grid {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .news-hero__caption {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 轮次观察列表 ---------- */
.page-news .feed-zone {
  padding-block: clamp(44px, 7vw, 90px);
}

.page-news .feed {
  display: grid;
  gap: clamp(28px, 4.2vw, 50px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-news .feed-item {
  display: grid;
  gap: 10px 26px;
}

.page-news .feed-item__index {
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.page-news .feed-item__round {
  font-family: var(--cond);
  font-size: clamp(34px, 5.2vw, 50px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--muted);
  opacity: 0.5;
}

.page-news .feed-item__round-unit {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.page-news .feed-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0 0 10px;
}

.page-news .feed-item__time {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
}

.page-news .feed-item__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.42;
}

.page-news .feed-item__summary {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--frost);
  opacity: 0.78;
}

/* 越位主题标签：站点全局只提供琥珀与紫，此处补青色 */
.page-news .tag--cyan {
  color: var(--cyan);
  border-color: rgba(34, 227, 211, 0.45);
  background: rgba(34, 227, 211, 0.08);
}

/* ---------- 专题区（整幅色带） ---------- */
.page-news .topic-zone {
  padding-block: clamp(44px, 7vw, 88px);
  background: var(--ink-2);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

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

.page-news .news-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.68) brightness(0.86);
}

.page-news .news-figure--wide img {
  aspect-ratio: 16 / 9;
}

.page-news .news-figure__caption {
  margin: 12px 0 0;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .topic-cover {
  margin-top: clamp(26px, 4vw, 44px);
}

.page-news .topic-pair {
  display: grid;
  gap: 20px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-news .topic {
  background: var(--panel);
  border: 2px solid var(--hair);
  box-shadow: var(--shadow-hard);
}

.page-news .topic--amber {
  border-color: rgba(255, 176, 32, 0.42);
  box-shadow: 6px 6px 0 rgba(255, 176, 32, 0.16);
}

.page-news .topic--cyan {
  border-color: rgba(34, 227, 211, 0.4);
  box-shadow: var(--shadow-cyan);
}

.page-news .topic__summary {
  position: relative;
  display: block;
  padding: clamp(18px, 2.4vw, 26px);
  cursor: pointer;
  list-style: none;
}

.page-news .topic__summary::-webkit-details-marker {
  display: none;
}

.page-news .topic__summary:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: -4px;
}

.page-news .topic__index {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-news .topic__name {
  display: block;
  padding-right: 42px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.36;
}

.page-news .topic__toggle {
  position: absolute;
  top: 50%;
  right: clamp(18px, 2.4vw, 26px);
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 220ms var(--ease);
}

.page-news .topic--amber .topic__toggle {
  color: var(--amber);
}

.page-news .topic[open] .topic__toggle {
  transform: translateY(-50%) rotate(45deg);
}

.page-news .topic__body {
  margin: 0 clamp(18px, 2.4vw, 26px) clamp(20px, 2.8vw, 28px);
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}

.page-news .topic__body p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--frost);
  opacity: 0.84;
}

.page-news .topic__meta {
  display: grid;
  gap: 4px 16px;
  margin: 0;
}

.page-news .topic__meta dt {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-news .topic__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--frost);
  opacity: 0.8;
}

.page-news .topic-strip {
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 3.4vw, 38px);
  padding: clamp(16px, 2.6vw, 26px);
  border: 1px solid var(--hair);
  background: var(--news-band);
}

.page-news .topic-strip__figure img {
  aspect-ratio: 3 / 2;
}

.page-news .topic-strip__text h3 {
  margin: 0 0 12px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.4;
}

.page-news .topic-strip__text p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--frost);
  opacity: 0.8;
}

.page-news .topic-strip__text p:last-child {
  margin-bottom: 0;
}

/* ---------- 读图指引 ---------- */
.page-news .chart-zone {
  padding-block: clamp(44px, 7vw, 90px);
}

.page-news .chart-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 85%);
  gap: 16px;
  margin-top: clamp(26px, 4vw, 42px);
  padding-bottom: 10px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-news .chart-card {
  scroll-snap-align: start;
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--ink-2);
  border: 1px solid var(--hair);
}

.page-news .chart-card__tag {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-news .chart-svg {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 18px;
}

.page-news .chart-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.42;
}

.page-news .chart-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--frost);
  opacity: 0.78;
}

.page-news .chart-note {
  display: grid;
  gap: 22px;
  margin-top: clamp(30px, 4.4vw, 50px);
  padding-top: clamp(24px, 3.6vw, 38px);
  border-top: 1px solid var(--hair);
}

.page-news .chart-note .news-figure img {
  aspect-ratio: 3 / 2;
}

.page-news .chart-note__text h3 {
  margin: 0 0 12px;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 800;
  line-height: 1.4;
}

.page-news .chart-note__text p {
  margin: 0 0 12px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--frost);
  opacity: 0.8;
}

.page-news .news-link {
  display: inline-block;
  margin-top: 4px;
  color: var(--cyan);
  font-size: 14.5px;
  border-bottom: 1px solid rgba(34, 227, 211, 0.45);
  padding-bottom: 2px;
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.page-news .news-link:hover,
.page-news .news-link:focus-visible {
  color: var(--frost);
  border-bottom-color: var(--frost);
}

/* ---------- 裁判尺度观察（整幅色带） ---------- */
.page-news .ref-zone {
  padding-block: clamp(44px, 7vw, 88px);
  background: var(--ink-2);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.page-news .ref-grid {
  display: grid;
  gap: clamp(26px, 4.4vw, 48px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-news .ref-list {
  margin: 0;
  display: grid;
}

.page-news .ref-list__row {
  display: grid;
  gap: 6px;
  padding-block: clamp(16px, 2.2vw, 22px);
  border-top: 1px solid var(--hair);
}

.page-news .ref-list__row:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-news .ref-list dt {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-news .ref-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--frost);
  opacity: 0.82;
}

.page-news .ref-figure img {
  aspect-ratio: 3 / 2;
}

/* ---------- 内容合作 ---------- */
.page-news .contrib-zone {
  padding-block: clamp(44px, 7vw, 90px);
}

.page-news .contrib-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(24px, 3.6vw, 38px);
}

.page-news .contrib-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-news .contrib-list li {
  padding-left: 18px;
  border-left: 2px solid var(--hair);
}

.page-news .contrib-list h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
}

.page-news .contrib-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--frost);
  opacity: 0.8;
}

.page-news .contrib-contact {
  padding: clamp(20px, 3vw, 30px);
  background: var(--panel);
  border: 2px solid var(--hair);
  box-shadow: var(--shadow-violet);
}

.page-news .contrib-contact h3 {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 800;
}

.page-news .contrib-contact__list {
  display: grid;
  gap: 4px 16px;
  margin: 0 0 18px;
}

.page-news .contrib-contact__list dt {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-news .contrib-contact__list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--frost);
  word-break: break-word;
}

.page-news .contrib-contact__note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
  font-size: 14px;
  line-height: 1.76;
  color: var(--frost);
  opacity: 0.76;
}

/* ---------- 平板以上 ---------- */
@media (min-width: 760px) {
  .page-news .feed-item {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: start;
  }

  .page-news .feed-item__index {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .page-news .topic__meta {
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-news .topic__meta dt {
    margin-top: 0;
  }

  .page-news .contrib-contact__list {
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-news .contrib-contact__list dt {
    margin-top: 0;
  }
}

@media (min-width: 880px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .page-news .topic-pair {
    grid-template-columns: minmax(0, 1.26fr) minmax(0, 0.74fr);
    align-items: start;
  }

  .page-news .topic-strip {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: center;
    gap: clamp(20px, 3vw, 34px);
  }

  .page-news .chart-note {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: clamp(24px, 3.6vw, 44px);
  }

  .page-news .ref-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.78fr);
    align-items: start;
  }

  .page-news .contrib-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .chart-rail {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    gap: 22px;
    overflow-x: visible;
    padding-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic__toggle,
  .page-news .news-link {
    transition: none;
  }
}