.page-news {
  --news-gap: clamp(20px, 3vw, 34px);
  --news-cut: 26px;
}

.page-news .news-hero {
  padding: clamp(26px, 5vw, 54px) 0 clamp(22px, 3.5vw, 38px);
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-hero h1 {
  margin: 12px 0 16px;
  max-width: 20em;
}

.page-news .news-hero .lede {
  max-width: 60ch;
}

.page-news .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin-top: 22px;
  font-size: var(--fs-5);
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .hero-meta span {
  position: relative;
  padding-left: 14px;
}

.page-news .hero-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 摘要色带 ---------- */
.page-news .digest {
  padding-top: clamp(30px, 5.5vw, 62px);
}

.page-news .digest-inner h2 {
  margin: 0 0 18px;
}

.page-news .digest-visual {
  margin: 0;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

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

.page-news .digest-band {
  position: relative;
  margin-top: clamp(-64px, -4vw, -24px);
  margin-left: clamp(0px, 4vw, 64px);
  padding: clamp(18px, 3vw, 30px);
  background: var(--amber);
  color: var(--ink-night);
}

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

.page-news .digest-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.page-news .digest-num {
  font-size: var(--fs-5);
  padding-top: 0.42em;
  opacity: 0.62;
}

.page-news .digest-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  font-weight: 600;
}

/* ---------- 日志列表 ---------- */
.page-news .logs {
  padding-top: clamp(36px, 6vw, 74px);
}

.page-news .logs-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .logs-head h2 {
  margin: 8px 0 0;
}

.page-news .logs-note {
  margin: 0;
  max-width: 34em;
  color: var(--mist);
  font-size: var(--fs-5);
  line-height: 1.7;
}

.page-news .log-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-news .idx {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 15px;
  font-size: var(--fs-5);
  letter-spacing: 0.04em;
  color: var(--white);
  text-decoration: none;
  background: var(--board-deep);
  border: 1px solid var(--line);
  border-left-width: 3px;
  transition: background-color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .idx .idx-count {
  color: var(--mist);
  font-size: 12px;
}

.page-news .idx--revise {
  border-left-color: var(--cyan);
}

.page-news .idx--rule {
  border-left-color: var(--amber);
}

.page-news .idx--feature {
  border-left-color: var(--cyan-soft);
}

.page-news .idx--topic {
  border-left-color: var(--white);
}

.page-news .idx:hover,
.page-news .idx:focus-visible {
  background: var(--board-lift);
  border-color: var(--cyan);
}

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

.page-news .log-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .log-row {
  position: relative;
  border-bottom: 1px solid var(--line);
}

.page-news .log-row > summary {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 8px 18px 14px;
  cursor: pointer;
  list-style: none;
  transition: background-color 160ms var(--ease);
}

.page-news .log-row > summary::-webkit-details-marker {
  display: none;
}

.page-news .log-row > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 160ms var(--ease);
}

.page-news .log-row > summary:hover,
.page-news .log-row[open] > summary {
  background: rgba(18, 63, 53, 0.55);
}

.page-news .log-row > summary:hover::before,
.page-news .log-row[open] > summary::before {
  transform: scaleY(1);
}

.page-news .log-row > summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .log-tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 2px 8px;
  border: 1px solid currentColor;
}

.page-news .log-tag--revise {
  color: var(--cyan);
}

.page-news .log-tag--rule {
  color: var(--amber);
}

.page-news .log-tag--feature {
  color: var(--cyan-soft);
}

.page-news .log-tag--topic {
  color: var(--white);
}

.page-news .log-phase {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .log-title {
  font-size: var(--fs-4);
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
}

.page-news .log-scope {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .log-more {
  padding: 0 12px 20px 18px;
}

.page-news .log-more p {
  margin: 0 0 10px;
  max-width: 64ch;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  color: var(--mist);
  font-size: 15px;
  line-height: 1.7;
}

.page-news .log-more p:last-child {
  margin-bottom: 0;
}

/* ---------- 专题 ---------- */
.page-news .spotlight {
  margin-top: clamp(34px, 6vw, 70px);
  padding: clamp(34px, 6vw, 72px) 0;
  background: var(--board-deep);
}

.page-news .spotlight-inner {
  display: grid;
  gap: var(--news-gap);
}

.page-news .spotlight-visual {
  margin: 0;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--news-cut) 100%, 0 calc(100% - var(--news-cut)));
}

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

.page-news .spotlight-copy h2 {
  margin: 8px 0 14px;
}

.page-news .spotlight-copy p {
  margin: 0 0 14px;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
}

.page-news .spot-notes {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .spot-notes li {
  position: relative;
  padding-left: 18px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.7;
}

.page-news .spot-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 规则时间轴 ---------- */
.page-news .rules {
  padding: clamp(36px, 6vw, 74px) 0;
}

.page-news .rules-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .rules-head h2 {
  margin: 8px 0 0;
}

.page-news .rules-note {
  margin: 0;
  max-width: 34em;
  color: var(--mist);
  font-size: var(--fs-5);
  line-height: 1.7;
}

.page-news .rules-visual {
  margin: 24px 0 0;
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-news .rule-track {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-news .rule-node {
  position: relative;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-news .rule-dot {
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(255, 176, 32, 0.14);
  transition: box-shadow 160ms var(--ease);
}

.page-news .rule-ver {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .rule-stage {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-news .rule-node p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
  transition: color 160ms var(--ease);
}

.page-news .rule-node:hover p,
.page-news .rule-node:focus-within p {
  color: var(--white);
}

.page-news .rule-node:hover .rule-dot {
  box-shadow: 0 0 0 6px rgba(255, 176, 32, 0.22);
}

/* ---------- 修订对照 ---------- */
.page-news .revision {
  padding: clamp(34px, 6vw, 72px) 0;
  background: var(--ink-night);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-news .revision-inner {
  display: grid;
  gap: var(--news-gap);
}

.page-news .revision-copy h2 {
  margin: 8px 0 14px;
}

.page-news .revision-copy p {
  margin: 0 0 14px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--white);
}

.page-news .revision-copy a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-news .revision-copy a:hover {
  color: var(--cyan-soft);
}

.page-news .revision-visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

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

.page-news .diff {
  border: 1px solid var(--line);
  background: var(--board-lift);
}

.page-news .diff-row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  padding: 12px 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
}

.page-news .diff-row:first-child {
  border-top: 0;
}

.page-news .diff-row--head {
  background: rgba(0, 240, 200, 0.08);
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-news .diff-row > span:first-child {
  color: var(--mist);
}

.page-news .diff-row .is-changed {
  color: var(--amber);
  font-weight: 700;
}

/* ---------- 三种跟进方式 ---------- */
.page-news .follow {
  padding: clamp(38px, 6vw, 78px) 0 clamp(56px, 8vw, 100px);
}

.page-news .follow h2 {
  margin: 8px 0 0;
}

.page-news .follow-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .follow-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .follow-num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-news .follow-item h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: var(--fs-4);
  color: var(--white);
}

.page-news .follow-item p {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  max-width: 56ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.72;
}

.page-news .follow-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .digest-list {
    grid-template-columns: 1fr 1fr;
    gap: 18px 32px;
  }

  .page-news .logs-head,
  .page-news .rules-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
  }

  .page-news .logs-note,
  .page-news .rules-note {
    text-align: right;
  }
}

@media (min-width: 860px) {
  .page-news .log-row > summary {
    grid-template-columns: 96px 124px minmax(0, 1fr) 190px;
    align-items: baseline;
    gap: 16px;
    padding: 20px 12px 20px 18px;
  }

  .page-news .log-scope {
    text-align: right;
  }

  .page-news .log-more {
    padding: 0 12px 22px 130px;
  }

  .page-news .rule-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .follow-item {
    grid-template-columns: 56px 250px minmax(0, 1fr);
    align-items: start;
    column-gap: 20px;
  }

  .page-news .follow-item h3 {
    grid-column: 2;
    grid-row: 1;
  }

  .page-news .follow-item p {
    grid-column: 3;
    grid-row: 1;
  }
}

@media (min-width: 900px) {
  .page-news .spotlight-inner {
    grid-template-columns: 5fr 6fr;
    align-items: center;
  }

  .page-news .revision-inner {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }

  .page-news .diff {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .idx,
  .page-news .log-row > summary,
  .page-news .log-row > summary::before,
  .page-news .rule-dot,
  .page-news .rule-node p {
    transition: none;
  }
}
<<<END>>>