.page-news {
  --news-side-w: 220px;
  --news-rail-w: 200px;
}

/* ---------- 首屏标题区 ---------- */
.page-news .col-head {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(20px, 3vw, 32px);
}

.page-news .col-head .display-title {
  margin: 12px 0 0;
  max-width: 16em;
}

.page-news .col-head .lede {
  margin-top: clamp(18px, 3vw, 28px);
  max-width: 62ch;
  color: var(--slate-text);
}

.page-news .col-head__meta {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0 clamp(16px, 3vw, 36px);
  border-top: 1px solid var(--line-mid);
}

.page-news .col-head__meta li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 0 4px;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .col-head__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal-cyan);
}

.page-news .col-head__v {
  font-size: 14px;
  color: var(--chalk-white);
}

/* ---------- 顶部横幅 ---------- */
.page-news .stream-banner {
  margin: 0;
  border: 1px solid var(--line-mid);
  background: var(--turf-deep);
  position: relative;
  overflow: hidden;
}

.page-news .stream-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  opacity: 0.86;
}

.page-news .stream-banner figcaption {
  padding: 12px clamp(14px, 2vw, 22px);
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-text);
}

/* ---------- 三栏骨架 ---------- */
.page-news .col-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
  align-items: start;
}

.page-news .col-rail__title,
.page-news .col-side__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--slate-text);
}

/* 左侧栏目标签 */
.page-news .col-rail .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .col-rail .filter-btn {
  appearance: none;
  font: inherit;
  font-size: 13px;
  line-height: 1.3;
  padding: 8px 14px;
  background: transparent;
  color: var(--slate-text);
  border: 1px solid var(--line-mid);
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-news .col-rail .filter-btn:hover,
.page-news .col-rail .filter-btn:focus-visible {
  color: var(--chalk-white);
  border-color: var(--signal-cyan);
}

.page-news .col-rail .filter-btn[aria-pressed="true"],
.page-news .col-rail .filter-btn.is-active {
  color: var(--pitch-void);
  background: var(--signal-cyan);
  border-color: var(--signal-cyan);
}

.page-news .col-rail__stats {
  margin: clamp(24px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .col-rail__stats > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .col-rail__stats dt {
  font-size: 12px;
  color: var(--slate-text);
}

.page-news .col-rail__stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber-warm);
  text-align: right;
}

/* ---------- 中间条目流 ---------- */
.page-news .col-stream {
  min-width: 0;
  border-top: 1px solid var(--line-mid);
}

.page-news .entry {
  position: relative;
  padding: clamp(22px, 3vw, 30px) 0 clamp(24px, 3vw, 32px);
  border-bottom: 1px solid var(--line-soft);
  overflow-wrap: break-word;
  transition: border-color var(--t-base) var(--ease);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  border-bottom-color: var(--line-strong);
}

.page-news .entry__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-bottom: 12px;
}

.page-news .entry__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate-text);
  opacity: 0.75;
}

.page-news .entry__stamp {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate-text);
}

.page-news .entry--stat .entry__stamp {
  color: var(--pulse-orange);
}

.page-news .entry__title {
  margin: 0 0 10px;
  font-family: var(--font-narrow);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--chalk-white);
  transition: color var(--t-fast) var(--ease);
}

.page-news .entry:hover .entry__title {
  color: var(--signal-cyan);
}

.page-news .entry__sum {
  margin: 0;
  max-width: 68ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--slate-text);
}

/* 转会动态：竖向刻度 */
.page-news .entry--transfer {
  padding-left: 34px;
}

.page-news .entry--transfer::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 46px;
  bottom: 0;
  width: 1px;
  background: var(--line-soft);
}

.page-news .entry--transfer::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 38px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--turf-deep);
  border: 1px solid var(--signal-cyan);
}

.page-news .entry--transfer:hover::before {
  background: var(--cyan-mid);
}

/* 长文条目：文字 + 竖图 */
.page-news .entry__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
  align-items: start;
}

.page-news .entry__details {
  margin-top: 16px;
  border-left: 1px solid var(--line-mid);
  padding-left: 14px;
}

.page-news .entry__details summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-cyan);
  padding: 4px 0;
  transition: color var(--t-fast) var(--ease);
}

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

.page-news .entry__details summary::after {
  content: " +";
  color: var(--amber-warm);
}

.page-news .entry__details[open] summary::after {
  content: " −";
}

.page-news .entry__details summary:hover {
  color: var(--chalk-white);
}

.page-news .entry__toc {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.page-news .entry__toc li {
  display: flex;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate-text);
  border-top: 1px solid var(--line-soft);
}

.page-news .entry__toc-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber-warm);
  padding-top: 3px;
}

/* 图片 */
.page-news .entry__figure {
  margin: 0;
  border: 1px solid var(--line-mid);
  background: var(--turf-deep);
  overflow: hidden;
}

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

.page-news .entry__figure--tall img {
  aspect-ratio: 4 / 5;
}

.page-news .entry__figure--wide {
  margin-top: 18px;
}

.page-news .entry__figure--wide img {
  aspect-ratio: 3 / 2;
}

.page-news .entry__figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate-text);
}

/* ---------- 右侧延伸入口 ---------- */
.page-news .col-side__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .side-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0 14px 14px;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-news .side-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 6px;
  height: 1px;
  background: var(--line-strong);
  transition: background-color var(--t-fast) var(--ease), width var(--t-fast) var(--ease);
}

.page-news .side-link:hover::before,
.page-news .side-link:focus-visible::before {
  width: 10px;
  background: var(--signal-cyan);
}

.page-news .side-link__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal-cyan);
}

.page-news .side-link__v {
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate-text);
}

.page-news .side-link:hover .side-link__v {
  color: var(--chalk-white);
}

/* ---------- 收藏面板 ---------- */
.page-news .save-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-news .save-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-mid);
}

.page-news .save-steps li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .save-steps__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber-warm);
  letter-spacing: 0.08em;
}

.page-news .save-steps__txt {
  font-size: var(--step-0);
  line-height: 1.7;
  color: var(--chalk-white);
}

/* ---------- 合作入口 ---------- */
.page-news .contrib-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-news .contrib-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-mid);
  background: linear-gradient(140deg, var(--turf-deep) 0%, var(--panel-paper) 100%);
}

/* ---------- 尾图 ---------- */
.page-news .col-outro {
  margin: clamp(40px, 6vw, 72px) 0 0;
  border-top: 1px solid var(--line-mid);
  border-bottom: 1px solid var(--line-mid);
  background: var(--turf-deep);
  position: relative;
}

.page-news .col-outro img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.82;
}

.page-news .col-outro figcaption {
  padding: 14px clamp(16px, 3vw, 40px) 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-text);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-news .entry__body {
    grid-template-columns: minmax(0, 1fr) 200px;
  }

  .page-news .save-grid,
  .page-news .contrib-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-news .col-layout {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr) var(--news-side-w);
    gap: clamp(28px, 3vw, 44px);
  }

  .page-news .col-rail,
  .page-news .col-side {
    position: sticky;
    top: 24px;
  }

  .page-news .col-rail .filter-bar {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-top: 1px solid var(--line-soft);
  }

  .page-news .col-rail .filter-btn {
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    padding: 12px 0 12px 16px;
    text-align: left;
    position: relative;
  }

  .page-news .col-rail .filter-btn::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 1px;
    background: var(--line-strong);
    transform: translateY(-50%);
    transition: background-color var(--t-fast) var(--ease), width var(--t-fast) var(--ease);
  }

  .page-news .col-rail .filter-btn:hover::before,
  .page-news .col-rail .filter-btn:focus-visible::before {
    width: 11px;
    background: var(--signal-cyan);
  }

  .page-news .col-rail .filter-btn[aria-pressed="true"],
  .page-news .col-rail .filter-btn.is-active {
    background: var(--cyan-soft);
    color: var(--signal-cyan);
    border-color: var(--line-mid);
  }

  .page-news .col-rail .filter-btn[aria-pressed="true"]::before,
  .page-news .col-rail .filter-btn.is-active::before {
    width: 14px;
    background: var(--signal-cyan);
  }

  .page-news .entry__body {
    grid-template-columns: minmax(0, 1fr) 220px;
  }
}

@media (min-width: 1280px) {
  .page-news .col-stream {
    padding-right: clamp(0px, 2vw, 28px);
  }
}

/* ---------- 窄屏防溢出 ---------- */
@media (max-width: 719px) {
  .page-news .col-outro img,
  .page-news .stream-banner img,
  .page-news .entry__figure img {
    aspect-ratio: 3 / 2;
  }

  .page-news .entry--transfer {
    padding-left: 26px;
  }

  .page-news .entry--transfer::before {
    left: 5px;
  }

  .page-news .entry--transfer::after {
    left: 0;
  }

  .page-news .col-rail__stats dd {
    font-size: 11px;
  }

  .page-news .contrib-cta {
    justify-content: flex-start;
  }

  .page-news .contrib-cta .btn {
    flex: 0 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .entry__title,
  .page-news .side-link,
  .page-news .side-link::before,
  .page-news .col-rail .filter-btn,
  .page-news .col-rail .filter-btn::before {
    transition: none;
  }
}