.page-news {
  --news-axis: 24px;
  --news-stage: var(--fb-cyan);
  background: var(--fb-ink-900);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--fb-hairline);
  background: var(--fb-ink-900);
}

.page-news .news-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .news-hero__media img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-news .news-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 24, 38, 0.4) 0%, rgba(10, 24, 38, 0.86) 58%, var(--fb-ink-900) 100%),
    repeating-linear-gradient(90deg, rgba(53, 227, 224, 0.07) 0 1px, transparent 1px 104px);
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 40px;
  padding-bottom: 44px;
}

.page-news .news-hero .fb-eyebrow {
  margin-top: 22px;
}

.page-news .news-hero .fb-h1 {
  margin: 8px 0 14px;
}

.page-news .news-hero .fb-lead {
  max-width: 58ch;
}

.page-news .news-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--fb-hairline);
  list-style: none;
}

.page-news .news-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-news .news-hero__stat .fb-num {
  font-size: 24px;
  line-height: 1;
}

.page-news .news-hero__stat span:last-child {
  font-size: 13px;
  color: var(--fb-text-muted);
  letter-spacing: 0.02em;
}

/* ---------- 索引与筛选 ---------- */
.page-news .news-index {
  padding-top: 40px;
}

.page-news .news-index__head {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.page-news .news-index__intro {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fb-text-muted);
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.page-news .news-filter__btn {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--fb-hairline);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fb-text-muted);
  text-decoration: none;
  transition: color var(--fb-ease), border-color var(--fb-ease), background-color var(--fb-ease);
}

.page-news .news-filter__btn:hover,
.page-news .news-filter__btn:focus-visible {
  border-color: var(--fb-cyan);
  color: var(--fb-text);
}

.page-news .news-filter__btn.is-active {
  border-color: var(--fb-cyan);
  background: var(--fb-cyan);
  color: var(--fb-ink-900);
  font-weight: 600;
}

/* ---------- 时间轴底板 ---------- */
.page-news .news-board {
  position: relative;
  overflow: hidden;
  padding: 26px 16px 34px;
  border: 1px solid var(--fb-hairline);
  border-radius: var(--fb-radius);
  background:
    linear-gradient(180deg, rgba(74, 22, 38, 0.92) 0%, rgba(74, 22, 38, 0.36) 24%, rgba(10, 24, 38, 0) 56%),
    var(--fb-ink-900);
}

.page-news .news-board::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(53, 227, 224, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 227, 224, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 72%);
}

.page-news .news-group {
  position: relative;
}

.page-news .news-group + .news-group {
  margin-top: 42px;
}

.page-news .news-group--early { --news-stage: var(--fb-cyan); }
.page-news .news-group--mid { --news-stage: var(--fb-orange); }
.page-news .news-group--late { --news-stage: var(--fb-turf); }

.page-news .news-group__head {
  display: grid;
  gap: 6px;
  margin-bottom: 22px;
  padding-left: calc(var(--news-axis) + 6px);
}

.page-news .news-group__num {
  margin: 0;
  font-family: var(--fb-font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--news-stage);
}

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

.page-news .news-group__note {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fb-text-muted);
}

/* ---------- 条目列表 ---------- */
.page-news .news-list {
  position: relative;
  margin: 0;
  padding-left: var(--news-axis);
  border-left: 1px solid rgba(53, 227, 224, 0.26);
  list-style: none;
}

.page-news .news-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  background: var(--fb-ink-700);
  border: 1px solid var(--fb-hairline);
  border-radius: var(--fb-radius);
  transition: transform var(--fb-ease), border-color var(--fb-ease), box-shadow var(--fb-ease);
}

.page-news .news-item + .news-item {
  margin-top: 20px;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  top: 24px;
  left: calc(-1 * var(--news-axis) - 5px);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--fb-ink-900);
  border: 2px solid var(--news-stage);
}

.page-news .news-item:hover {
  border-color: var(--news-stage);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.34);
}

.page-news .news-item__main {
  min-width: 0;
}

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

.page-news .news-item__ver {
  font-family: var(--fb-font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fb-text-muted);
}

.page-news .news-item__title {
  margin: 10px 0 0;
}

.page-news .news-item__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--fb-text-muted);
}

.page-news .news-item__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--fb-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--fb-ease), color var(--fb-ease);
}

.page-news .news-item__link:hover,
.page-news .news-item__link:focus-visible {
  border-bottom-color: var(--fb-cyan);
}

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

.page-news .news-item__figure .fb-figure__frame {
  border-color: var(--fb-hairline);
}

/* ---------- 长期栏目 ---------- */
.page-news .news-series {
  border-top: 1px solid var(--fb-hairline);
}

.page-news .news-series__grid {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

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

.page-news .news-series__list {
  display: grid;
  gap: 18px;
}

.page-news .news-series__item {
  padding-left: 16px;
  border-left: 2px solid var(--fb-indigo-zone);
}

.page-news .news-series__item:nth-child(1) { border-left-color: var(--fb-cyan); }
.page-news .news-series__item:nth-child(2) { border-left-color: var(--fb-orange); }
.page-news .news-series__item:nth-child(3) { border-left-color: var(--fb-turf); }

.page-news .news-series__item .fb-h3 {
  margin: 0 0 8px;
}

.page-news .news-series__item p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--fb-text-muted);
}

.page-news .news-series__freq {
  font-family: var(--fb-font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fb-text-muted);
}

/* ---------- 反馈入口 ---------- */
.page-news .news-cta__inner {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-news .news-cta__text p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fb-text-muted);
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 自适应 ---------- */
@media (min-width: 700px) {
  .page-news .news-hero__inner {
    padding-top: 58px;
    padding-bottom: 66px;
  }

  .page-news .news-hero__stat .fb-num {
    font-size: 28px;
  }

  .page-news .news-list {
    --news-axis: 32px;
  }

  .page-news .news-board {
    padding: 34px 28px 46px;
  }

  .page-news .news-item {
    padding: 22px 24px;
  }

  .page-news .news-item--media {
    grid-template-columns: minmax(0, 1fr) 240px;
    column-gap: 26px;
  }

  .page-news .news-item--media .news-item__figure {
    grid-column: 2;
    grid-row: 1;
    align-self: start;
  }

  .page-news .news-series__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

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

@media (min-width: 1020px) {
  .page-news .news-item--media {
    grid-template-columns: minmax(0, 1fr) 280px;
  }

  .page-news .news-group__head {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item__link,
  .page-news .news-filter__btn {
    transition: none;
  }

  .page-news .news-item:hover {
    transform: none;
  }
}