.page-news {
  --news-rail: 250px;
  --news-scroll: calc(var(--hdr) + 20px);
  background:
    radial-gradient(880px 420px at 88% -8%, rgba(0, 229, 255, .12), transparent 62%),
    radial-gradient(680px 380px at 4% 14%, rgba(255, 183, 77, .08), transparent 60%),
    var(--bg);
  color: var(--txt);
}

.page-news .notes-crumb {
  padding-top: clamp(16px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-news .notes-hero {
  display: grid;
  gap: 14px;
  padding: clamp(18px, 3vw, 34px) 0 clamp(24px, 4vw, 48px);
}

.page-news .notes-hero h1 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(29px, 5.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--txt-strong);
}

.page-news .notes-lead {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--txt);
}

.page-news .notes-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .metric {
  min-width: 0;
  padding: 13px 16px;
  background: var(--c-ink-2);
}

.page-news .metric-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.2vw, 22px);
  color: var(--c-cyan);
  letter-spacing: .02em;
}

.page-news .metric-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--txt-mute);
}

/* ---------- 区块骨架 ---------- */
.page-news .notes-block {
  padding: clamp(28px, 4.4vw, 62px) 0;
  border-top: 1px solid var(--line);
}

.page-news .notes-block[id] {
  scroll-margin-top: var(--news-scroll);
}

.page-news .rail-grid {
  display: grid;
  gap: clamp(20px, 3vw, 38px);
}

.page-news .rail-head {
  min-width: 0;
}

.page-news .rail-num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-mist);
}

.page-news .rail-title {
  margin: 0 0 12px;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.3;
  color: var(--txt-strong);
}

.page-news .rail-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--txt);
  max-width: 62ch;
}

.page-news .notes-figure {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
}
.page-news .rail-head .notes-figure {
  margin-top: 18px;
}

.page-news .notes-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-2);
}

.page-news .media-frame__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--txt-mute);
}

/* ---------- 版本时间线 ---------- */
.page-news .tl {
  position: relative;
  margin: 0;
  padding: 6px 0 0;
  list-style: none;
}

.page-news .tl::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, rgba(0, 229, 255, .85), rgba(255, 183, 77, .75));
}

.page-news .tl-node {
  position: relative;
  min-width: 0;
  padding: 0 0 26px 46px;
}

.page-news .tl-node::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-ink);
  border: 2px solid var(--c-gold);
  transition: border-color var(--t), box-shadow var(--t), transform var(--t);
}

.page-news .tl-node:hover::after,
.page-news .tl-node:focus-within::after {
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 6px rgba(0, 229, 255, .14);
  transform: translateY(-1px);
}

.page-news .tl-node:last-child {
  padding-bottom: 0;
}

.page-news .tl-ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-news .tl-title {
  margin: 6px 0 7px;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.4;
  color: var(--txt-strong);
}

.page-news .tl-text {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--txt);
}

.page-news .tl-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 11px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .tl-points li {
  padding: 4px 10px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--txt-mute);
}

/* ---------- 通道筛选 ---------- */
.page-news .chan-pills {
  margin: 18px 0 0;
}

.page-news .chan-pill {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--line-2);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--txt);
  text-decoration: none;
  transition: border-color var(--t), color var(--t), background var(--t);
}

.page-news .chan-pill:hover,
.page-news .chan-pill:focus-visible {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  background: rgba(0, 229, 255, .08);
}

.page-news .chan-pill[aria-current="true"] {
  border-color: var(--c-gold);
  color: var(--c-gold);
  background: rgba(255, 183, 77, .1);
}

.page-news .chan-top {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-news .lane-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .lane-row {
  min-width: 0;
  padding: 18px 20px;
  background: rgba(18, 61, 74, .42);
  scroll-margin-top: var(--news-scroll);
  transition: background var(--t), box-shadow var(--t);
}

.page-news .lane-row:hover {
  background: rgba(18, 61, 74, .7);
  box-shadow: inset 0 0 0 1px rgba(0, 229, 255, .34);
}

.page-news .lane-tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--c-mist);
}

.page-news .lane-title {
  margin: 6px 0 8px;
  font-size: 19px;
  color: var(--txt-strong);
}

.page-news .lane-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--txt);
}

.page-news .lane-meta {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-gold);
}

.page-news .ledger {
  margin-top: clamp(20px, 3vw, 32px);
  padding: 4px 0 4px 18px;
  border-left: 2px solid var(--line-gold);
}

.page-news .ledger-title {
  margin: 0 0 12px;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--c-gold);
}

.page-news .ledger-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .ledger-list li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--txt);
}

.page-news .ledger-when {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-soft);
}

/* ---------- 条目流 ---------- */
.page-news .note-feed {
  display: grid;
  gap: 14px;
}

.page-news .note-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 61, 74, .5), rgba(11, 27, 43, .55));
  transition: transform var(--t), border-color var(--t), box-shadow var(--t);
}

.page-news .note-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-hot);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .3);
}

.page-news .note-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .note-badge {
  padding: 3px 8px;
  background: var(--c-gold);
  color: var(--c-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-news .note-when {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--txt-mute);
}

.page-news .note-title {
  margin: 0;
  font-size: 17px;
  line-height: 1.45;
  color: var(--txt-strong);
}

.page-news .note-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--txt);
}

.page-news .note-tags {
  margin: 0;
}

.page-news .note-more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.page-news .note-more summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--c-cyan);
  transition: color var(--t);
}

.page-news .note-more summary:hover {
  color: var(--c-soft);
}

.page-news .note-more p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--txt-mute);
}

/* ---------- 专题 ---------- */
.page-news .series-top {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-news .series-top .notes-figure {
  margin-top: 0;
}

.page-news .series-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .series-col {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  background: rgba(42, 27, 61, .34);
}

.page-news .series-title {
  margin: 0 0 14px;
  font-size: 16px;
  letter-spacing: .06em;
  color: var(--c-soft);
}

.page-news .series-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .series-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

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

.page-news .series-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-gold);
}

.page-news .series-item-title {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--txt-strong);
}

.page-news .series-item-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--txt-mute);
}

/* ---------- 反馈 ---------- */
.page-news .rail-head--wide .rail-text {
  max-width: 70ch;
}

.page-news .feedback-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-news .fb-plate {
  min-width: 0;
  padding: 22px;
}

.page-news .fb-title {
  margin: 0 0 10px;
  font-size: 19px;
  color: var(--c-brown);
}

.page-news .fb-line {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.85;
}

.page-news .fb-mail {
  font-family: var(--font-mono);
  word-break: break-all;
}

.page-news .fb-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .fb-link {
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(28, 20, 16, .4);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--c-brown);
  text-decoration: none;
  transition: color var(--t), border-color var(--t);
}

.page-news .fb-link:hover,
.page-news .fb-link:focus-visible {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .note-feed {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-news .lane-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .feedback-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-news .rail-grid {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
  }

  .page-news .rail-head {
    position: sticky;
    top: var(--news-scroll);
    align-self: start;
  }

  .page-news .rail-head--wide {
    position: static;
  }

  .page-news .chan-top {
    grid-template-columns: minmax(0, 1fr) minmax(0, .74fr);
    align-items: start;
  }

  .page-news .chan-top .notes-figure {
    margin-top: 0;
  }

  .page-news .series-top {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-news .note-feed {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .note-card:hover {
    transform: none;
  }

  .page-news .tl-node:hover::after {
    transform: none;
  }
}