.page-news {
  --news-rule: 1px solid var(--c-line);
  --news-gap: clamp(20px, 3vw, 34px);
}

/* ---------- 页首区块 ---------- */
.page-news .news-mast .breadcrumb {
  margin-bottom: 20px;
}

.page-news .news-mast-grid {
  display: grid;
  gap: var(--news-gap);
  margin-top: 18px;
}

@media (min-width: 900px) {
  .page-news .news-mast-grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: end;
  }
}

.page-news .news-mast .display {
  margin: 0;
  max-width: 20ch;
}

.page-news .news-mast .lede {
  margin: 18px 0 0;
  max-width: 48ch;
}

.page-news .news-figures {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-figure {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-bottom: var(--news-rule);
}

.page-news .news-figure:first-child {
  border-top: var(--news-rule);
}

.page-news .news-figure-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  color: var(--c-amber);
  min-width: 2.6ch;
}

.page-news .news-figure-key {
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 置顶条目 ---------- */
.page-news .pin-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
}

.page-news .pin-item {
  background: var(--c-panel);
  border-top: 2px solid var(--c-amber);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 30px);
  transition: background var(--dur) var(--ease);
}

.page-news .pin-item:hover {
  background: var(--c-panel-hi);
}

.page-news .pin-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-news .pin-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-amber);
}

.page-news .pin-title {
  margin: 0;
  flex: 1 1 20ch;
}

.page-news .pin-grid {
  display: grid;
  gap: clamp(16px, 2.6vw, 30px);
  margin-top: 16px;
}

@media (min-width: 820px) {
  .page-news .pin-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
  }
  .page-news .pin-item--flip .pin-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
  }
  .page-news .pin-item--flip .pin-text {
    order: 2;
  }
  .page-news .pin-item--flip .pin-media {
    order: 1;
  }
}

.page-news .pin-body {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-text);
}

.page-news .pin-head + .pin-body {
  margin-top: 14px;
}

.page-news .pin-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
}

.page-news .pin-media {
  margin: 0;
}

.page-news .media-frame img {
  max-width: 100%;
}

/* ---------- 筛选与列表 ---------- */
.page-news .update-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
}

.page-news .update-filter .tag {
  text-decoration: none;
}

.page-news .update-layout {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(26px, 4vw, 44px);
}

@media (min-width: 980px) {
  .page-news .update-layout {
    grid-template-columns: minmax(0, 0.6fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-news .update-side {
    position: sticky;
    top: 104px;
  }
}

.page-news .update-side-note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-news .update-groups {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
}

.page-news .update-group {
  scroll-margin-top: 100px;
}

.page-news .update-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: var(--news-rule);
}

.page-news .update-group-key {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  padding: 4px 6px;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  color: var(--c-amber);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .update-group:target .update-group-key {
  border-color: var(--c-amber);
  background: rgba(242, 179, 61, .14);
}

.page-news .update-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .update-item {
  border-bottom: var(--news-rule);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .update-item:hover,
.page-news .update-item:focus-within {
  background: var(--c-panel);
  transform: translateY(-2px);
}

.page-news .update-entry summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 15px 6px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .update-index {
  flex: 0 0 4.4em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-dim);
}

.page-news .update-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-text);
  transition: color var(--dur) var(--ease);
}

.page-news .update-entry[open] .update-title {
  color: var(--c-amber);
}

.page-news .update-tag {
  flex: 0 0 auto;
}

.page-news .update-entry summary::after {
  content: "＋";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-muted);
  transition: color var(--dur) var(--ease);
}

.page-news .update-entry[open] summary::after {
  content: "－";
  color: var(--c-amber);
}

.page-news .update-body {
  margin: 0;
  padding: 0 6px 18px 6px;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

@media (min-width: 641px) {
  .page-news .update-body {
    padding-left: calc(4.4em + 12px);
  }
}

@media (max-width: 640px) {
  .page-news .update-index {
    flex: 0 0 100%;
  }
}

/* ---------- 专题 ---------- */
.page-news .series-cover {
  margin: clamp(24px, 3vw, 36px) 0 0;
}

.page-news .series-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 30px);
  background: var(--c-line);
  border: var(--news-rule);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (min-width: 780px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .series-card {
  background: var(--c-dome);
  padding: clamp(18px, 3vw, 28px);
  transition: background var(--dur) var(--ease);
}

.page-news .series-card:hover {
  background: var(--c-panel);
}

.page-news .series-branch {
  display: block;
  width: 64px;
  height: 24px;
  margin-bottom: 14px;
  color: var(--c-celadon);
}

.page-news .series-title {
  margin: 0;
}

.page-news .series-cycle {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-amber);
}

.page-news .series-cycle-key {
  color: var(--c-dim);
}

.page-news .series-body {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 版本线索 ---------- */
.page-news .track-list {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 28px);
}

.page-news .track-item {
  display: grid;
  gap: 8px 20px;
}

@media (min-width: 700px) {
  .page-news .track-item {
    grid-template-columns: 9.5em minmax(0, 1fr);
    align-items: center;
  }
  .page-news .track-note {
    grid-column: 2;
  }
}

.page-news .track-version {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-muted);
}

.page-news .track-item--3 .track-version {
  color: var(--c-amber);
}

.page-news .track-bar {
  display: block;
  height: 6px;
  border-radius: 3px;
  background: var(--c-line);
  overflow: hidden;
}

.page-news .track-fill {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 3px;
  background: var(--c-celadon);
  transition: background var(--dur) var(--ease);
}

.page-news .track-item--1 .track-fill { width: 34%; }
.page-news .track-item--2 .track-fill { width: 68%; }
.page-news .track-item--3 .track-fill { width: 100%; background: var(--c-amber); }

.page-news .track-item:hover .track-fill {
  background: var(--c-amber);
}

.page-news .track-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 节奏与回访 ---------- */
.page-news .rhythm {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 920px) {
  .page-news .rhythm {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

.page-news .rhythm-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .rhythm-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-news .rhythm-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 16px;
  height: 1px;
  margin-top: 12px;
  background: var(--c-amber);
}

.page-news .rhythm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-news .rhythm-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-news .rhythm-note a {
  color: var(--c-amber);
  text-decoration: underline;
  text-decoration-color: rgba(242, 179, 61, .4);
  text-underline-offset: 3px;
}

@media (max-width: 480px) {
  .page-news .news-figure-num {
    font-size: 19px;
  }
  .page-news .pin-head {
    gap: 6px 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pin-item,
  .page-news .update-item,
  .page-news .series-card,
  .page-news .track-fill,
  .page-news .update-title,
  .page-news .update-entry summary::after {
    transition: none;
  }
  .page-news .update-item:hover,
  .page-news .update-item:focus-within {
    transform: none;
  }
}
<<<END>>>