/* ===== 品牌专栏 page-news ===== */

.page-news {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-news .section {
  padding: 52px 0;
}

/* ---------- 页头标题板 ---------- */

.page-news__head {
  position: relative;
  background-color: var(--indigo);
  background-image:
    linear-gradient(rgba(180, 134, 60, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 134, 60, 0.13) 1px, transparent 1px);
  background-size: 34px 34px;
  color: var(--paper);
  padding: 30px 0 76px;
}

.page-news__head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--copper) 0, var(--copper) 140px, transparent 140px);
}

.page-news__head .breadcrumbs {
  color: rgba(245, 241, 232, 0.72);
}

.page-news__head .breadcrumbs a {
  color: var(--copper-bright);
}

.page-news__eyebrow {
  margin: 22px 0 8px;
  color: var(--copper-bright);
  letter-spacing: 0.14em;
}

.page-news__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 5.4vw, 46px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper-white);
  max-width: 22em;
}

.page-news__lead {
  margin: 18px 0 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(245, 241, 232, 0.86);
}

/* ---------- 置顶专题 ---------- */

.page-news__first {
  padding: 0 0 56px;
}

.page-news__first .wrap {
  position: relative;
  z-index: 2;
  margin-top: -42px;
}

.page-news .news-lead {
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  box-shadow: 18px 18px 0 -12px rgba(22, 34, 76, 0.16);
}

.page-news .news-lead__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--indigo-deep);
  border-bottom: 1px solid var(--copper-line);
}

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

.page-news .news-lead__stamp {
  position: absolute;
  left: 0;
  top: 0;
  background: var(--copper);
  color: var(--indigo-deep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 8px 14px;
}

.page-news .news-lead__body {
  padding: 24px 20px 30px;
}

.page-news .news-lead__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.8vw, 30px);
  line-height: 1.32;
  color: var(--indigo);
}

.page-news .news-lead__sum {
  margin: 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

.page-news .news-points {
  margin-top: 24px;
  border-top: 1px solid var(--line-strong);
}

.page-news .news-point {
  border-bottom: 1px solid var(--line);
}

.page-news .news-point > summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.55;
  color: var(--indigo);
  transition: color 180ms var(--ease);
}

.page-news .news-point > summary::-webkit-details-marker {
  display: none;
}

.page-news .news-point > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--copper);
  transition: transform 240ms var(--ease);
}

.page-news .news-point[open] > summary::after {
  transform: rotate(45deg);
}

.page-news .news-point > summary:hover {
  color: var(--copper);
}

.page-news .news-point__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--copper);
}

.page-news .news-point > p {
  margin: 0;
  padding: 0 0 18px 32px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- 章节头 ---------- */

.page-news .news-sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  row-gap: 8px;
  align-items: baseline;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .news-sec-head__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--copper);
}

.page-news .news-sec-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.32;
  color: var(--indigo);
}

.page-news .news-sec-head__note {
  grid-column: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

/* ---------- 条目流 ---------- */

.page-news__stream {
  background: var(--paper-white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .tabs__btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--indigo);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  cursor: pointer;
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-news .tabs__btn:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.page-news .tabs__btn[aria-selected="true"] {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--indigo-deep);
}

.page-news .tabs__btn:focus-visible {
  outline: 2px solid var(--copper-bright);
  outline-offset: 2px;
}

.page-news .news-tabs__count {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  padding: 3px 7px;
  border-radius: 999px;
  background: rgba(16, 21, 31, 0.08);
  color: var(--rock);
}

.page-news .tabs__btn[aria-selected="true"] .news-tabs__count {
  background: rgba(13, 21, 51, 0.18);
  color: var(--indigo-deep);
}

.page-news .tabs__panel[hidden] {
  display: none;
}

.page-news .news-group + .news-group {
  margin-top: 32px;
}

.page-news .news-group__year {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-news .news-group__year::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

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

.page-news .news-item {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-item:last-child {
  border-bottom: 0;
}

.page-news .news-item__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
}

.page-news .news-item__meta .tag {
  font-size: 12px;
  line-height: 1.4;
}

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.5;
  color: var(--indigo);
  transition: color 180ms var(--ease), transform 200ms var(--ease);
}

.page-news .news-item:hover .news-item__title {
  color: var(--copper);
  transform: translateX(3px);
}

.page-news .news-item__sum {
  margin: 0;
  max-width: 52em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- 往期归档 ---------- */

.page-news .news-archive {
  display: grid;
  gap: 28px;
}

.page-news .news-chart {
  background: var(--paper-white);
  border: 1px solid var(--line);
  padding: 22px 16px 14px;
}

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

.page-news .news-chart line {
  stroke: var(--rock);
  opacity: 0.35;
  stroke-width: 1;
}

.page-news .news-chart rect {
  fill: var(--copper);
  opacity: 0.48;
}

.page-news .news-chart rect.is-current {
  opacity: 1;
}

.page-news .news-chart text {
  fill: var(--rock);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-news .news-chart text.is-current {
  fill: var(--indigo);
  font-weight: 700;
}

.page-news .news-chart__caption {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-news .news-note {
  background: var(--indigo);
  color: var(--paper);
  border-left: 3px solid var(--copper);
  padding: 24px 20px 26px;
}

.page-news .news-note__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.45;
  color: var(--paper-white);
}

.page-news .news-note dl {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-news .news-note dt {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper-bright);
}

.page-news .news-note dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.86);
}

/* ---------- 栏目说明与合作 ---------- */

.page-news__guide {
  background-color: var(--indigo-deep);
  background-image:
    linear-gradient(rgba(180, 134, 60, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 134, 60, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  border-top: 4px solid var(--copper);
  color: var(--paper);
}

.page-news .news-sec-head--onDark {
  border-bottom-color: rgba(245, 241, 232, 0.24);
}

.page-news .news-sec-head--onDark .news-sec-head__title {
  color: var(--paper-white);
}

.page-news .news-sec-head--onDark .news-sec-head__note {
  color: rgba(245, 241, 232, 0.78);
}

.page-news .news-cols {
  display: grid;
  gap: 22px;
}

.page-news .news-col {
  display: flex;
  flex-direction: column;
  background: rgba(245, 241, 232, 0.05);
  border: 1px solid rgba(245, 241, 232, 0.2);
}

.page-news .news-col__media {
  overflow: hidden;
  border-bottom: 1px solid rgba(180, 134, 60, 0.5);
}

.page-news .news-col__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-news .news-col__body {
  padding: 18px 18px 22px;
}

.page-news .news-col__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper-white);
}

.page-news .news-col__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 241, 232, 0.82);
}

.page-news .news-contrib {
  margin: 34px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(245, 241, 232, 0.22);
  max-width: 60em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(245, 241, 232, 0.86);
}

.page-news__guide .link-line {
  color: var(--copper-bright);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-news .section {
    padding: 64px 0;
  }

  .page-news__head {
    padding: 44px 0 92px;
  }

  .page-news__first {
    padding: 0 0 68px;
  }

  .page-news .news-lead__body {
    padding: 30px 34px 38px;
  }

  .page-news .news-cols {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-news .news-col__body {
    padding: 20px 20px 26px;
  }
}

@media (min-width: 980px) {
  .page-news .news-archive {
    grid-template-columns: 7fr 5fr;
    gap: 46px;
    align-items: start;
  }

  .page-news .news-note {
    padding: 28px 26px 30px;
  }

  .page-news .news-item__title {
    font-size: 18px;
  }

  .page-news .news-sec-head__num {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-point > summary,
  .page-news .news-point > summary::after,
  .page-news .news-item__title,
  .page-news .tabs__btn {
    transition: none;
  }
}