.page-news {
  --news-rail-w: 260px;
  --news-gap: 28px;
  padding-bottom: 72px;
}

.page-news .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gray);
}
.page-news .breadcrumbs a {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .12s var(--ease), border-color .12s var(--ease);
}
.page-news .breadcrumbs a:hover,
.page-news .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}
.page-news .crumb-sep { color: var(--line); }

/* ---------- 页头 ---------- */
.page-news .news-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 12px 0 36px;
  border-bottom: 1px solid var(--line);
}
.page-news .news-head .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  margin: 0 0 14px;
}
.page-news .news-head h1 {
  margin: 0 0 18px;
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--frost);
  max-width: 20ch;
}
.page-news .news-head .lede {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body);
}
.page-news .head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-news .news-banner {
  position: relative;
  background:
    repeating-linear-gradient(45deg, rgba(34, 224, 200, .05) 0 1px, transparent 1px 9px),
    var(--ink-1);
  border: 1px solid var(--line);
  clip-path: var(--cut);
  overflow: hidden;
}
.page-news .news-banner img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 160px;
  max-height: 300px;
  object-fit: cover;
  opacity: .92;
}

/* ---------- 主体双栏 ---------- */
.page-news .news-body {
  padding-top: 36px;
}

/* 左侧标签纵列 */
.page-news .news-rail {
  margin-bottom: 8px;
}
.page-news .rail-stick {
  border-left: 2px solid var(--cyan-deep);
  padding-left: 16px;
}
.page-news .rail-title {
  margin: 0 0 8px;
  font-family: var(--font-cond);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--frost);
}
.page-news .rail-note {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
}
.page-news .tag-stack {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-news .tag-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 11px 12px 11px 14px;
  background: transparent;
  border: 1px solid transparent;
  border-bottom-color: var(--line);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: background .12s var(--ease), color .12s var(--ease), border-color .12s var(--ease);
}
.page-news .tag-btn::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 0;
  background: var(--cyan);
  transform: translateY(-50%);
  transition: height .12s var(--ease);
}
.page-news .tag-btn:hover,
.page-news .tag-btn:focus-visible {
  background: var(--ink-1);
  color: var(--frost);
}
.page-news .tag-btn[aria-pressed="true"] {
  background: var(--ink-2);
  color: var(--frost);
  border-color: var(--line);
}
.page-news .tag-btn[aria-pressed="true"]::before {
  height: 60%;
}
.page-news .tag-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
  font-variant-numeric: tabular-nums;
}
.page-news .tag-btn[aria-pressed="true"] .tag-count {
  color: var(--cyan);
}
.page-news .rail-jump {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0 0;
}
.page-news .rail-link {
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .12s var(--ease), color .12s var(--ease);
}
.page-news .rail-link:hover,
.page-news .rail-link:focus-visible {
  border-color: var(--cyan);
}

/* ---------- 分区标题 ---------- */
.page-news .sec-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin: 40px 0 16px;
}
.page-news .news-stream > .sec-head:first-child { margin-top: 0; }
.page-news .sec-head-left {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.page-news .sec-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}
.page-news .h-sec {
  margin: 0;
  font-family: var(--font-cond);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: .02em;
  color: var(--frost);
}
.page-news .sec-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ---------- 首条折叠变更说明 ---------- */
.page-news .fold-wrap {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  clip-path: var(--cut);
  overflow: hidden;
}
.page-news .fold {
  display: block;
}
.page-news .fold-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  transition: background .12s var(--ease);
}
.page-news .fold-head::-webkit-details-marker { display: none; }
.page-news .fold-head:hover,
.page-news .fold-head:focus-visible {
  background: var(--ink-2);
}
.page-news .fold-mark {
  flex: none;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-0);
  background: var(--orange);
  clip-path: var(--cut-sm);
}
.page-news .fold-title {
  flex: 1;
  font-family: var(--font-cond);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--frost);
}
.page-news .fold-note {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gray);
}
.page-news .fold[open] .fold-note { color: var(--cyan); }
.page-news .fold-body {
  padding: 4px 20px 22px;
  border-top: 1px solid var(--line);
}
.page-news .fold-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding-top: 18px;
}
.page-news .change-dl {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-news .change-row {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.page-news .change-row:last-child { border-bottom: 0; padding-bottom: 0; }
.page-news .change-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--orange);
  padding-top: 3px;
}
.page-news .change-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body);
}
.page-news .fold-foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}
.page-news .fold-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
  transition: border-color .12s var(--ease);
}
.page-news .fold-foot a:hover,
.page-news .fold-foot a:focus-visible { border-color: var(--cyan); }
.page-news .fold-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-0);
  overflow: hidden;
  clip-path: var(--cut-sm);
}
.page-news .fold-figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  opacity: .9;
}

/* ---------- 轮次刻度 ---------- */
.page-news .round-board {
  background: var(--ink-1);
  border: 1px solid var(--line);
  clip-path: var(--cut);
  padding: 20px;
}
.page-news .round-lede {
  margin: 0 0 18px;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body);
}
.page-news .ruler {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}
.page-news .tick {
  flex: 0 0 auto;
  min-width: 78px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--ink-0);
  border: 1px solid var(--line);
  text-decoration: none;
  clip-path: var(--cut-sm);
  transition: border-color .12s var(--ease), background .12s var(--ease);
}
.page-news .tick:hover,
.page-news .tick:focus-visible {
  border-color: var(--cyan);
  background: var(--ink-2);
}
.page-news .tick-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--frost);
}
.page-news .tick-cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gray);
}
.page-news .tick.is-current {
  border-color: var(--orange);
  background: var(--ink-2);
}
.page-news .tick.is-current .tick-num { color: var(--orange); }
.page-news .tick.is-current .tick-cap { color: var(--orange); }
.page-news .ruler-figure {
  margin: 18px 0 0;
  border-top: 1px solid var(--line);
  padding-top: 18px;
  background: transparent;
}
.page-news .ruler-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  opacity: .88;
}

/* ---------- 列表工具条 ---------- */
.page-news .list-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.page-news .search-field {
  flex: 1 1 220px;
  display: block;
}
.page-news .filter-input {
  width: 100%;
  padding: 10px 12px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  color: var(--frost);
  font-family: var(--font-sans);
  font-size: 14px;
  clip-path: var(--cut-sm);
  transition: border-color .12s var(--ease);
}
.page-news .filter-input::placeholder { color: var(--gray); }
.page-news .filter-input:focus,
.page-news .filter-input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 1px;
  border-color: var(--cyan);
}
.page-news .filter-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gray);
  font-variant-numeric: tabular-nums;
}

/* ---------- 条目列表 ---------- */
.page-news .topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-news .index-item {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 4px 12px;
  padding: 16px 12px 16px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .12s var(--ease);
}
.page-news .index-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .12s var(--ease);
}
.page-news .index-item:hover,
.page-news .index-item:focus-within {
  background: var(--ink-1);
}
.page-news .index-item:hover::before,
.page-news .index-item:focus-within::before {
  transform: scaleY(1);
}
.page-news .index-num {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}
.page-news .index-main {
  grid-column: 2;
  min-width: 0;
}
.page-news .item-title {
  margin: 0 0 6px;
  font-family: var(--font-cond);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.3;
  color: var(--frost);
}
.page-news .item-sum {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--body);
  max-width: 68ch;
}
.page-news .item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
}
.page-news .item-meta .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  padding: 3px 8px;
  border: 1px solid currentColor;
  clip-path: var(--cut-sm);
}
.page-news .item-meta .read {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--gray);
}
.page-news .item-meta .tag--cyan { color: var(--cyan); }
.page-news .item-meta .tag--orange { color: var(--orange); }
.page-news .item-meta .tag--green { color: var(--green); }
.page-news .item-meta .tag--red { color: var(--red); }
.page-news .index-tail {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gray);
  align-self: end;
}
.page-news .index-item[hidden] { display: none; }
.page-news .filter-empty {
  margin: 14px 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--line);
  font-size: 13px;
  color: var(--gray);
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 48px;
  padding: 24px 20px;
  background:
    repeating-linear-gradient(45deg, rgba(34, 224, 200, .04) 0 1px, transparent 1px 10px),
    var(--ink-1);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan-deep);
  clip-path: var(--cut);
}
.page-news .cadence-copy .h-sec { margin: 8px 0 14px; }
.page-news .cadence-copy .prose {
  margin: 0 0 20px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body);
}
.page-news .cadence-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-news .cadence-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 10px;
  background: var(--ink-0);
}
.page-news .stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--gray);
}
.page-news .stat-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--frost);
  font-variant-numeric: tabular-nums;
}
.page-news .stat-value.pos { color: var(--green); }
.page-news .cadence-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-0);
  overflow: hidden;
  clip-path: var(--cut-sm);
}
.page-news .cadence-figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  opacity: .9;
}

/* ---------- 跟踪方式 ---------- */
.page-news .follow-up {
  margin-top: 48px;
}
.page-news .follow-grid {
  row-gap: 16px;
}
.page-news .follow-card {
  position: relative;
  padding: 18px 18px 20px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  clip-path: var(--cut);
  transition: border-color .12s var(--ease), background .12s var(--ease);
}
.page-news .follow-card:hover,
.page-news .follow-card:focus-within {
  border-color: var(--cyan-deep);
  background: var(--ink-2);
}
.page-news .follow-idx {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}
.page-news .follow-title {
  margin: 0 0 8px;
  font-family: var(--font-cond);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--frost);
}
.page-news .follow-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body);
}
.page-news .follow-card a,
.page-news .follow-more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
  transition: border-color .12s var(--ease);
}
.page-news .follow-card a:hover,
.page-news .follow-card a:focus-visible,
.page-news .follow-more a:hover,
.page-news .follow-more a:focus-visible { border-color: var(--cyan); }
.page-news .follow-more {
  margin: 20px 0 0;
  max-width: 70ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 768px) {
  .page-news .news-head {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
    gap: 32px;
  }
  .page-news .news-head h1 { font-size: 44px; }
  .page-news .news-banner img { max-height: 320px; }
  .page-news .fold-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr);
    align-items: start;
  }
  .page-news .round-board { padding: 24px; }
  .page-news .cadence {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
    align-items: center;
    padding: 30px 28px;
  }
  .page-news .index-item {
    grid-template-columns: 56px 1fr auto;
    align-items: start;
  }
  .page-news .index-tail {
    grid-column: 3;
    text-align: right;
    padding-top: 4px;
  }
}

@media (min-width: 1024px) {
  .page-news .news-head {
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
  }
  .page-news .news-head h1 { font-size: 52px; }
  .page-news .news-rail { position: relative; }
  .page-news .rail-stick {
    position: sticky;
    top: 96px;
    padding-left: 18px;
  }
  .page-news .item-title { font-size: 18px; }
  .page-news .cadence { margin-top: 64px; }
  .page-news .follow-up { margin-top: 64px; }
}

@media (min-width: 1280px) {
  .page-news .news-head h1 { font-size: 58px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition-duration: 0ms !important;
  }
}
</PAGE_CSS>>>