.page-news {
  --news-rail-w: 244px;
  --news-track: rgba(55, 230, 212, 0.2);
  --news-hover: rgba(55, 230, 212, 0.06);
  background: var(--surface-1);
}

/* 页面开场 */
.page-news .news-intro {
  padding: 88px 0 56px;
  background:
    radial-gradient(120% 150% at 82% -30%, rgba(55, 230, 212, 0.18), transparent 62%),
    radial-gradient(90% 120% at 4% 0%, rgba(18, 63, 94, 0.75), transparent 70%),
    linear-gradient(180deg, var(--surface-2), var(--surface-1));
  border-bottom: 1px solid var(--line);
}

.page-news .news-intro h1 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.06em;
  font-size: clamp(32px, 6vw, 70px);
  line-height: 1.12;
  margin: 14px 0 22px;
  color: var(--salt);
  max-width: 18ch;
}

.page-news .news-lede {
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--salt);
  opacity: 0.82;
}

.page-news .news-stamp {
  margin-top: 26px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-accent);
  padding-left: 14px;
  border-left: 2px solid var(--coral);
}

/* 主体分栏 */
.page-news .news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding: 48px 0 96px;
}

@media (min-width: 1000px) {
  .page-news .news-shell {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

.page-news .rail-card {
  padding: 20px 18px 22px;
}

.page-news .rail-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 12px;
}

.page-news .rail-rule {
  margin: 22px 0 18px;
}

.page-news .rail-note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
}

.page-news .filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .filter-chip {
  font: inherit;
  font-size: 13px;
  line-height: 1;
  padding: 8px 13px;
  color: var(--mist);
  background: transparent;
  border: 1px solid rgba(55, 230, 212, 0.32);
  clip-path: polygon(0 0, calc(100% - var(--cut-sm)) 0, 100% var(--cut-sm), 100% 100%, var(--cut-sm) 100%, 0 calc(100% - var(--cut-sm)));
  cursor: pointer;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.page-news .filter-chip:hover {
  color: var(--salt);
  border-color: var(--cyan);
  background: var(--news-hover);
}

.page-news .filter-chip.is-active {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--abyss);
}

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

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

.page-news .rail-links a {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--salt);
  text-decoration: none;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line-soft);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news .rail-links a:hover,
.page-news .rail-links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

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

/* 内容区块 */
.page-news .news-canvas {
  min-width: 0;
}

.page-news .news-block {
  padding: 40px 0 16px;
  border-top: 1px solid var(--line-soft);
}

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

.page-news .block-head {
  max-width: 62ch;
  margin-bottom: 26px;
}

.page-news .block-head h2 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.05em;
  font-size: clamp(22px, 3.4vw, 36px);
  line-height: 1.24;
  color: var(--salt);
  margin: 10px 0 14px;
}

.page-news .block-lede {
  font-size: 15px;
  line-height: 1.85;
  color: var(--salt);
  opacity: 0.78;
}

/* 图片 */
.page-news .news-figure {
  margin: 0 0 32px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--surface-3), var(--surface-1));
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

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

.page-news .news-figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  padding: 10px 14px 12px;
  border-top: 1px solid var(--line);
}

.page-news .topic-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

/* 时间轴 */
.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 20px;
  border-left: 1px solid var(--news-track);
}

.page-news .timeline-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
  transition: background-color 0.18s ease;
}

.page-news .timeline-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 26px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-news .timeline-item:hover {
  background: linear-gradient(90deg, var(--news-hover), transparent 72%);
}

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

@media (min-width: 720px) {
  .page-news .timeline-item {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
  }
}

.page-news .timeline-time {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-accent);
  padding-top: 3px;
  white-space: nowrap;
}

.page-news .timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.page-news .timeline-body h3 {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--salt);
  margin: 0 0 6px;
}

.page-news .timeline-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--salt);
  opacity: 0.7;
  margin: 0;
  max-width: 56ch;
}

.page-news .tag--fork {
  background: rgba(255, 122, 89, 0.14);
  color: var(--coral);
  border-color: rgba(255, 122, 89, 0.36);
}

/* 新旧对照 */
.page-news .view-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 760px) {
  .page-news .view-compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 22px;
  }
}

.page-news .view-col {
  padding: 18px 18px 20px;
  background: var(--surface-2);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-news .view-col--new {
  background: linear-gradient(160deg, rgba(18, 63, 94, 0.9), rgba(6, 24, 38, 0.95));
  border-color: var(--news-track);
}

.page-news .view-tag {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
  margin-bottom: 12px;
}

.page-news .view-col--new .view-tag {
  color: var(--cyan);
}

.page-news .wire {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: 16px;
}

.page-news .wire rect {
  fill: none;
  stroke: var(--rock);
  stroke-width: 1.2;
  opacity: 0.65;
}

.page-news .wire rect.is-key {
  stroke: var(--cyan);
  stroke-width: 1.6;
  opacity: 1;
  fill: rgba(55, 230, 212, 0.1);
}

.page-news .view-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-news .view-list li {
  font-size: 13px;
  line-height: 1.7;
  color: var(--salt);
  opacity: 0.74;
  padding-left: 14px;
  position: relative;
}

.page-news .view-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 1px;
  background: var(--cyan);
}

.page-news .preview-note {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-news .preview-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 230, 212, 0.4);
}

.page-news .preview-note a:hover,
.page-news .preview-note a:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* 专题 */
.page-news .topic-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

@media (min-width: 880px) {
  .page-news .topic-row {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 36px;
  }
  .page-news .topic-row--reverse {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
  .page-news .topic-row--reverse .topic-figure {
    order: 2;
  }
  .page-news .topic-row--reverse .topic-copy {
    order: 1;
  }
}

.page-news .topic-list {
  display: grid;
  gap: 0;
}

.page-news .topic-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  column-gap: 10px;
}

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

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

.page-news .topic-index {
  font-size: 12px;
  color: var(--coral);
  letter-spacing: 0.1em;
  padding-top: 4px;
}

.page-news .topic-item h3 {
  font-size: 16px;
  font-weight: 500;
  color: var(--salt);
  margin: 0 0 6px;
}

.page-news .topic-item p:not(.topic-index) {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.78;
  color: var(--salt);
  opacity: 0.72;
  margin: 0;
}

.page-news .topic-copy h3 {
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--salt);
  margin: 0 0 14px;
}

.page-news .topic-copy p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--salt);
  opacity: 0.76;
  margin: 0 0 14px;
  max-width: 54ch;
}

.page-news .topic-copy .btn {
  margin-top: 6px;
}

/* 更新节奏 */
.page-news .news-block--rhythm {
  background: linear-gradient(180deg, rgba(11, 42, 69, 0.6), transparent 70%);
  padding-bottom: 32px;
}

.page-news .rhythm-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

@media (min-width: 700px) {
  .page-news .rhythm-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-news .rhythm-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-news .rhythm-item {
  padding: 20px 20px 22px 0;
  border-top: 1px solid var(--news-track);
  position: relative;
}

.page-news .rhythm-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 26px;
  height: 2px;
  background: var(--cyan);
}

@media (min-width: 700px) {
  .page-news .rhythm-item {
    padding-right: 24px;
  }
}

.page-news .rhythm-cycle {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-accent);
  margin: 0 0 10px;
}

.page-news .rhythm-item h3 {
  font-size: 17px;
  font-weight: 500;
  color: var(--salt);
  margin: 0 0 8px;
}

.page-news .rhythm-item p {
  font-size: 14px;
  line-height: 1.78;
  color: var(--salt);
  opacity: 0.7;
  margin: 0;
}

.page-news .rhythm-foot {
  margin-top: 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-mute);
  max-width: 62ch;
  padding-left: 16px;
  border-left: 2px solid var(--clay);
}

/* 订阅与反馈 */
.page-news .news-block--call {
  padding-top: 8px;
  border-top: 0;
}

.page-news .call-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 30px 24px 32px;
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(255, 122, 89, 0.16), transparent 60%),
    linear-gradient(140deg, var(--surface-3), var(--surface-2));
  border-left: 3px solid var(--coral);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

@media (min-width: 820px) {
  .page-news .call-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: 36px;
    align-items: center;
    padding: 36px 34px 38px;
  }
}

.page-news .call-copy h2 {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: 0.05em;
  font-size: clamp(22px, 3.2vw, 32px);
  color: var(--salt);
  margin: 10px 0 14px;
  line-height: 1.3;
}

.page-news .call-copy p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--salt);
  opacity: 0.78;
  margin: 0;
  max-width: 54ch;
}

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

.page-news .call-actions .btn {
  min-width: 160px;
}

@media (max-width: 480px) {
  .page-news .news-intro {
    padding: 64px 0 40px;
  }
  .page-news .news-shell {
    padding: 32px 0 64px;
  }
  .page-news .timeline {
    padding-left: 16px;
  }
  .page-news .timeline-item::before {
    left: -20px;
  }
  .page-news .call-actions .btn {
    width: 100%;
    min-width: 0;
  }
}
<<<END>>>