/* =========================================================
   品牌博客 / page-news
   作用域：.page-news
   ========================================================= */

.page-news {
  --news-gap: clamp(20px, 3.4vw, 44px);
  --news-hair: rgba(143, 163, 181, .22);
  --news-hair-soft: rgba(143, 163, 181, .12);
  --news-tick: rgba(216, 169, 59, .5);
  padding-bottom: clamp(48px, 7vw, 96px);
}

/* ---------------- 面包屑 ---------------- */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 26px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-news .breadcrumb__item {
  color: inherit;
  text-decoration: none;
}

.page-news .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--gold);
  opacity: .7;
}

.page-news a.breadcrumb__item:hover,
.page-news a.breadcrumb__item:focus-visible {
  color: var(--gold-lite);
}

/* ---------------- 章节共用小标题 ---------------- */
.page-news .news-head {
  max-width: 46ch;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-news .news-head .mono-label {
  display: block;
  margin-bottom: 10px;
  color: var(--gold);
}

.page-news .news-head .section-title {
  margin: 0;
}

/* =========================================================
   1. 首屏
   ========================================================= */
.page-news .news-hero {
  position: relative;
  padding: clamp(20px, 3.2vw, 40px) 0 clamp(34px, 5vw, 68px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--news-tick), transparent);
  opacity: .55;
  pointer-events: none;
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
}

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

.page-news .news-hero__title {
  margin: 12px 0 0;
  font-size: clamp(38px, 8.4vw, 84px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -.03em;
  color: var(--white);
}

.page-news .news-hero__lede {
  max-width: 56ch;
  margin: clamp(16px, 2.2vw, 26px) 0 0;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.78;
  color: var(--muted);
}

/* 首屏数字带 */
.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 26px);
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: clamp(18px, 2.4vw, 26px) 0 0;
  border-top: 1px solid var(--news-hair);
  list-style: none;
}

.page-news .news-hero__stat {
  position: relative;
  padding-left: 14px;
  min-width: 0;
}

.page-news .news-hero__stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--gold);
  opacity: .62;
}

.page-news .news-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 5vw, 50px);
  font-weight: 600;
  line-height: 1;
  color: var(--gold-lite);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

.page-news .news-hero__unit {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--white);
}

.page-news .news-hero__cap {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

/* 首屏图 */
.page-news .news-hero__figure {
  position: relative;
  margin: 0;
  border-radius: 22px 8px 22px 8px;
  overflow: visible;
}

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 22px 8px 22px 8px;
  border: 1px solid var(--line-gold);
  filter: saturate(.72) contrast(1.04) brightness(.92);
}

.page-news .news-hero__figure .mono-label {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  text-align: right;
}

/* =========================================================
   2. 本期头条
   ========================================================= */
.page-news .news-feature {
  padding: clamp(30px, 5vw, 70px) 0;
  border-top: 1px solid var(--news-hair);
}

.page-news .news-feature__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 46px);
  align-items: start;
}

.page-news .news-feature__figure {
  margin: 0;
  border-radius: 8px 22px 8px 22px;
  overflow: hidden;
  border: 1px solid var(--news-hair);
}

.page-news .news-feature__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  filter: saturate(.7) contrast(1.05) brightness(.9);
}

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

.page-news .news-feature__text p {
  margin: 0 0 1em;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--white);
}

.page-news .news-feature__text p:last-of-type {
  color: var(--muted);
  font-size: 15px;
}

.page-news .news-feature__text .btn {
  margin-top: clamp(14px, 2vw, 22px);
}

/* =========================================================
   3. 近期文章：不对称双栏
   ========================================================= */
.page-news .news-stream {
  position: relative;
  padding: clamp(32px, 5vw, 72px) 0;
  background:
    linear-gradient(180deg, rgba(19, 43, 65, .78), rgba(11, 27, 43, 0) 78%);
  border-top: 1px solid var(--news-hair);
}

.page-news .news-stream__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 48px);
}

/* 主文章 */
.page-news .news-lead {
  min-width: 0;
  padding-bottom: clamp(18px, 2.4vw, 28px);
  border-bottom: 1px solid var(--news-hair);
}

.page-news .news-lead__figure {
  margin: 0 0 clamp(16px, 2.2vw, 24px);
  border-radius: 14px 4px 14px 4px;
  overflow: hidden;
  border: 1px solid var(--news-hair-soft);
}

.page-news .news-lead__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.68) contrast(1.05) brightness(.9);
}

.page-news .news-lead__topic,
.page-news .news-index__topic {
  margin: 0 0 12px;
}

.page-news .news-lead__title {
  margin: 0 0 12px;
  font-size: clamp(21px, 2.6vw, 29px);
  font-weight: 800;
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-news .news-lead__excerpt {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--muted);
}

/* 索引列表 */
.page-news .news-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-news .news-index__item {
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--news-hair-soft);
  min-width: 0;
}

.page-news .news-index__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .news-index__title {
  margin: 0 0 8px;
  font-size: clamp(16.5px, 1.9vw, 19px);
  font-weight: 700;
  line-height: 1.46;
  color: var(--white);
}

.page-news .news-index__excerpt {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* =========================================================
   4. 主题归档
   ========================================================= */
.page-news .news-topics {
  padding: clamp(34px, 5.2vw, 76px) 0;
  border-top: 1px solid var(--news-hair);
}

.page-news .news-topics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--news-hair-soft);
  border: 1px solid var(--news-hair-soft);
  border-radius: 6px;
  overflow: hidden;
}

.page-news .news-topic {
  position: relative;
  padding: clamp(20px, 2.8vw, 32px) clamp(18px, 2.4vw, 30px);
  background: var(--panel);
  min-width: 0;
  transition: background-color .28s var(--ease);
}

.page-news .news-topic:hover {
  background: var(--slate);
}

.page-news .news-topic__num {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--gold);
}

.page-news .news-topic__name {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-news .news-topic__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--muted);
}

/* =========================================================
   5. 专题系列（横向轨道）
   ========================================================= */
.page-news .news-series {
  padding: clamp(34px, 5.2vw, 76px) 0 clamp(26px, 3.6vw, 44px);
  border-top: 1px solid var(--news-hair);
}

.page-news .news-series .news-head {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-news .news-series__rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(268px, 84%);
  gap: clamp(14px, 2vw, 26px);
  padding: 0 clamp(20px, 4vw, 32px) clamp(8px, 1.4vw, 16px);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-series__rail::-webkit-scrollbar {
  height: 4px;
}

.page-news .news-series__rail::-webkit-scrollbar-thumb {
  background: var(--line-gold);
  border-radius: 4px;
}

.page-news .news-series__card {
  scroll-snap-align: start;
  min-width: 0;
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2vw, 22px) clamp(20px, 2.4vw, 26px);
  background: var(--panel);
  border: 1px solid var(--news-hair-soft);
  border-radius: 4px 20px 4px 20px;
  transition: border-color .28s var(--ease), transform .28s var(--ease);
}

.page-news .news-series__card:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.page-news .news-series__card img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 2px 14px 2px 14px;
  margin-bottom: clamp(14px, 1.8vw, 20px);
  filter: saturate(.62) contrast(1.06) brightness(.86);
}

.page-news .news-series__card .mono-label {
  display: block;
  margin-bottom: 8px;
  color: var(--gold);
}

.page-news .news-series__name {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-news .news-series__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--muted);
}

/* =========================================================
   6. 收束引导
   ========================================================= */
.page-news .news-cta {
  padding: clamp(30px, 5vw, 66px) 0 0;
  border-top: 1px solid var(--news-hair);
}

.page-news .news-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
  padding: clamp(24px, 3.6vw, 46px) clamp(20px, 3vw, 40px);
  background:
    linear-gradient(115deg, rgba(216, 169, 59, .1), rgba(19, 43, 65, .5) 46%, rgba(11, 27, 43, .2));
  border: 1px solid var(--line-gold);
  border-radius: 26px 6px 26px 6px;
}

.page-news .news-cta__title {
  margin: 0 0 12px;
  font-size: clamp(21px, 2.8vw, 31px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-news .news-cta__text {
  max-width: 56ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--muted);
}

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

/* =========================================================
   断点：平板及以上
   ========================================================= */
@media (min-width: 720px) {
  .page-news .news-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-series__rail {
    grid-auto-columns: minmax(280px, 46%);
  }

  .page-news .news-cta__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }

  .page-news .news-cta__actions {
    justify-content: flex-end;
  }
}

/* =========================================================
   断点：桌面
   ========================================================= */
@media (min-width: 960px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
  }

  .page-news .news-feature__body {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-news .news-stream__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
    align-items: start;
  }

  .page-news .news-lead {
    border-bottom: 0;
    border-right: 1px solid var(--news-hair);
    padding-right: clamp(22px, 3.2vw, 46px);
    padding-bottom: 0;
  }

  .page-news .news-index__item:first-child {
    padding-top: 0;
  }

  .page-news .news-topics__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-series__rail {
    grid-auto-columns: minmax(0, 1fr);
    grid-auto-flow: initial;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow-x: visible;
    padding-left: clamp(32px, calc((100vw - var(--w-max)) / 2 + 32px), 240px);
    padding-right: clamp(32px, calc((100vw - var(--w-max)) / 2 + 32px), 240px);
  }
}

@media (min-width: 1280px) {
  .page-news .news-series__rail {
    max-width: var(--w-max);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
}

/* =========================================================
   无障碍与降级
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-topic,
  .page-news .news-series__card {
    transition: none;
  }

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