/* ===== 品牌专栏 /column/ ===== */
.page-news {
  --news-hairline: 1px solid var(--stroke);
  --news-ink-soft: #33406B;
  position: relative;
}

/* ---------- 面包屑与首屏 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(14px, 2.4vw, 24px);
}

.page-news .news-hero {
  padding-top: clamp(20px, 3.6vw, 40px);
}

.page-news .news-hero-grid {
  display: grid;
  gap: clamp(26px, 4.4vw, 48px);
}

@media (min-width: 1024px) {
  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(40px, 5vw, 80px);
  }
}

.page-news .news-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: clamp(36px, 6.4vw, 84px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: min(100%, 900px);
}

.page-news .news-hero .lead {
  margin: 24px 0 0;
  max-width: 32em;
  font-size: var(--fs-400);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 首屏目录 ---------- */
.page-news .news-toc {
  border-top: var(--news-hairline);
  padding-top: 18px;
}

@media (min-width: 1024px) {
  .page-news .news-toc {
    padding-top: 22px;
  }
}

.page-news .news-toc .eyebrow {
  margin: 0 0 12px;
}

.page-news .news-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .news-toc a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 8px 14px;
  border-radius: var(--pill);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-200);
  line-height: 1.5;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-news .news-toc a:hover,
.page-news .news-toc a:focus-visible {
  background: rgba(59, 240, 220, 0.1);
  color: var(--cyan);
}

.page-news .news-toc .mono {
  flex: 0 0 auto;
  font-size: var(--fs-100);
  letter-spacing: 0.16em;
  color: var(--cyan);
}

/* ---------- 章节头微调 ---------- */
.page-news .section-head {
  align-items: flex-end;
  gap: 16px;
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-news .section-head h2 {
  margin: 6px 0 0;
}

/* ---------- 01 三个栏目 ---------- */
.page-news .news-overview-grid {
  display: grid;
  gap: 16px;
}

@media (min-width: 768px) {
  .page-news .news-overview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-news .news-column-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--radius-xl);
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-news .news-column-no {
  margin: 0;
  font-size: var(--fs-100);
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-news .news-column-card h3 {
  margin: 0;
  font-size: var(--fs-500);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-column-desc {
  margin: 0;
  flex: 1;
  font-size: var(--fs-200);
  line-height: 1.9;
  color: var(--mist);
}

.page-news .news-column-card .tag {
  align-self: flex-start;
}

@media (hover: hover) {
  .page-news .news-column-card:hover {
    transform: translateY(-4px);
    border-color: var(--cyan);
  }
}

.page-news .news-note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--violet);
  font-size: var(--fs-200);
  line-height: 1.85;
  color: var(--mist);
  max-width: 46em;
}

/* ---------- 章节通用：导语 ---------- */
.page-news .news-topic-lede {
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 34em;
  font-size: var(--fs-300);
  line-height: 1.9;
  color: var(--mist);
}

/* ---------- 封面图 ---------- */
.page-news .news-cover {
  position: relative;
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--stroke);
  background: linear-gradient(160deg, var(--panel), var(--midnight));
}

.page-news .news-cover img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-news .news-cover--hero {
  margin-bottom: clamp(22px, 3.2vw, 34px);
}

.page-news .news-cover--hero img {
  aspect-ratio: 7 / 4;
}

.page-news .news-cover--side img {
  aspect-ratio: 3 / 2;
}

/* ---------- 左右分栏 ---------- */
.page-news .news-split {
  display: grid;
  gap: clamp(22px, 3.2vw, 34px);
}

@media (min-width: 1024px) {
  .page-news .news-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(32px, 4vw, 60px);
  }

  .page-news .news-split--flip {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-news .news-split--flip .news-split-media {
    order: 2;
  }

  .page-news .news-split--flip .news-split-body {
    order: 1;
  }

  .page-news .news-split-media {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

/* ---------- 条目列表 ---------- */
.page-news .entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--news-hairline);
}

.page-news .entry {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  gap: 6px 14px;
  padding: 20px 0;
  border-bottom: var(--news-hairline);
  transition: transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-news .entry-no {
  font-size: var(--fs-100);
  letter-spacing: 0.1em;
  color: var(--mist);
  padding-top: 4px;
  transition: color var(--dur-fast) var(--ease);
}

.page-news .entry-body {
  min-width: 0;
}

.page-news .entry h3 {
  margin: 0;
  font-size: var(--fs-400);
  font-weight: 500;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .entry p {
  margin: 8px 0 0;
  max-width: 42em;
  font-size: var(--fs-200);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .entry > .tag {
  grid-column: 2;
  justify-self: start;
}

@media (min-width: 768px) {
  .page-news .entry {
    grid-template-columns: 3.6em minmax(0, 1fr) auto;
    gap: 4px 22px;
    padding: 22px 0;
    align-items: start;
  }

  .page-news .entry > .tag {
    grid-column: 3;
    justify-self: end;
    margin-top: 8px;
  }
}

@media (hover: hover) {
  .page-news .entry:hover {
    transform: translateY(-2px);
    border-bottom-color: rgba(59, 240, 220, 0.55);
  }

  .page-news .entry:hover .entry-no {
    color: var(--cyan);
  }
}

/* ---------- 数据笔记内联入口 ---------- */
.page-news .news-inline-cta {
  margin: 26px 0 0;
}

/* ---------- 05 投稿与合作 ---------- */
.page-news .news-contribute-card {
  --mist: var(--news-ink-soft);
  padding: clamp(26px, 4vw, 48px);
  border-radius: var(--radius-xl);
  background: var(--paper);
  color: var(--midnight);
  border: 1px solid transparent;
}

.page-news .news-contribute-card .chapter-no {
  margin: 0;
  color: var(--violet);
}

.page-news .news-contribute-card h2 {
  margin: 8px 0 0;
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--midnight);
}

.page-news .news-contribute-card > p {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: var(--fs-300);
  line-height: 1.9;
  color: var(--news-ink-soft);
}

.page-news .news-collab-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid rgba(5, 11, 27, 0.16);
}

.page-news .news-collab-list li {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(5, 11, 27, 0.16);
}

.page-news .news-collab-list strong {
  font-size: var(--fs-300);
  font-weight: 600;
  color: var(--midnight);
}

.page-news .news-collab-list span {
  font-size: var(--fs-200);
  line-height: 1.85;
  color: var(--news-ink-soft);
}

.page-news .news-contribute-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin: 26px 0 0;
}

.page-news .news-contribute-foot span {
  font-size: var(--fs-200);
  line-height: 1.8;
  color: var(--news-ink-soft);
}

/* ---------- 页尾留白区 ---------- */
.page-news .news-tail {
  padding-top: clamp(30px, 5vw, 64px);
}

.page-news .news-tail-grid {
  display: grid;
  gap: clamp(22px, 3.2vw, 36px);
}

@media (min-width: 768px) {
  .page-news .news-tail-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }
}

.page-news .news-tail-figure {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--stroke);
  background: linear-gradient(160deg, var(--panel), var(--midnight));
}

.page-news .news-tail-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.page-news .news-tail-text {
  margin: 14px 0 26px;
  max-width: 26em;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 300;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-backtop {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
  padding: 6px 22px 6px 8px;
  border-radius: var(--pill);
  border: 1px solid var(--stroke);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-200);
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.page-news .news-gate {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(59, 240, 220, 0.12);
  color: var(--cyan);
}

@media (hover: hover) {
  .page-news .news-backtop:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    transform: translateY(-2px);
  }
}

.page-news .news-backtop:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .news-column-card,
  .page-news .news-backtop {
    transition: none;
  }

  .page-news .entry:hover,
  .page-news .news-column-card:hover,
  .page-news .news-backtop:hover {
    transform: none;
  }
}