.page-news {
  --news-body: #3B4048;
  --news-panel: #FBF7EF;
  --news-track: #D9D2C4;
  display: block;
  background: var(--paper);
  color: var(--ink);
}

/* 面包屑 */
.page-news .breadcrumb {
  padding: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--graphite);
}
.page-news .breadcrumb a {
  color: var(--blue);
  text-decoration: none;
}
.page-news .breadcrumb a:hover {
  text-decoration: underline;
}
.page-news .breadcrumb span {
  margin: 0 6px;
}

/* 首屏 */
.page-news .news-hero {
  position: relative;
  padding: 22px 0 40px;
  overflow: hidden;
  background:
    radial-gradient(110% 100% at 92% 0%, rgba(11, 95, 255, .14), transparent 62%),
    linear-gradient(180deg, var(--paper) 0%, rgba(244, 239, 230, .35) 100%);
}
.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -140px;
  width: 300px;
  height: 300px;
  border: 1px dashed rgba(11, 95, 255, .35);
  border-radius: 50%;
  pointer-events: none;
}
.page-news .news-hero-grid {
  display: grid;
  gap: 26px;
}
.page-news .news-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.12;
  letter-spacing: .004em;
}
.page-news .news-hero-lede {
  max-width: 62ch;
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--news-body);
}
.page-news .news-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 首屏索引卡 */
.page-news .news-hero-index {
  padding: 20px 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--orange);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.page-news .news-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue);
}
.page-news .news-index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: idx;
}
.page-news .news-index-list li {
  display: flex;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  counter-increment: idx;
  font-size: 15px;
  line-height: 1.6;
}
.page-news .news-index-list li:last-child {
  border-bottom: 0;
}
.page-news .news-index-list li::before {
  content: "0" counter(idx);
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}
.page-news .news-index-list a {
  color: var(--ink);
  text-decoration: none;
}
.page-news .news-index-list a:hover {
  color: var(--blue);
  text-decoration: underline;
}

/* 置顶公告 */
.page-news .notice-card {
  position: relative;
  display: grid;
  gap: 22px;
  margin-top: 14px;
  padding: 26px 22px 26px 28px;
  background: linear-gradient(155deg, var(--news-panel), #EFE6D5);
  border: 2px solid var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: 12px 12px 0 rgba(16, 22, 31, .07);
  overflow: hidden;
}
.page-news .notice-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: linear-gradient(180deg, var(--orange), var(--orange-deep));
}
.page-news .notice-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 13px;
  border-radius: var(--radius-pill);
  background: var(--orange);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}
.page-news .notice-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
}
.page-news .notice-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 4.2vw, 34px);
  line-height: 1.22;
}
.page-news .notice-body p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--news-body);
}
.page-news .notice-tiers {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-news .notice-tiers li {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: rgba(255, 227, 210, .55);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--orange);
}
.page-news .tier-key {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--orange-deep);
}
.page-news .tier-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}
.page-news .notice-foot a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 95, 255, .35);
}
.page-news .notice-foot a:hover {
  border-bottom-color: var(--blue);
}
.page-news .notice-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(16, 22, 31, .18);
  background: var(--card);
}
.page-news .notice-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 版本发布清单 */
.page-news .release-figure,
.page-news .timeline-figure,
.page-news .series-figure {
  margin: 24px 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
}
.page-news .release-figure img,
.page-news .timeline-figure img,
.page-news .series-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .release-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-news .release-item {
  position: relative;
  padding: 20px 16px 22px 34px;
  border-bottom: 1px solid var(--line);
  transition: background .22s ease-out;
}
.page-news .release-item::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  border-radius: 2px;
  background: var(--line);
  transition: background .22s ease-out;
}
.page-news .release-item::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--blue);
  transition: background .22s ease-out, border-color .22s ease-out, transform .22s ease-out;
}
.page-news .release-item:hover {
  background: rgba(255, 255, 255, .78);
}
.page-news .release-item:hover::before {
  background: var(--blue);
}
.page-news .release-item:hover::after {
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.18);
}
.page-news .release-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.page-news .release-no {
  font-size: 20px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: .04em;
}
.page-news .release-when {
  font-size: 12px;
  color: var(--graphite);
  letter-spacing: .04em;
}
.page-news .release-title {
  margin: 10px 0 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
}
.page-news .release-text {
  margin: 8px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--news-body);
}
.page-news .release-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
}

/* 时间轴区 */
.page-news .news-timeline-section {
  background: linear-gradient(180deg, rgba(11, 95, 255, .05), rgba(244, 239, 230, 0) 320px);
}
.page-news .rail-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.page-news .rail-link {
  display: inline-block;
  padding: 6px 11px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--graphite);
  text-decoration: none;
  transition: background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.page-news .rail-link:hover {
  color: var(--blue);
  border-color: var(--line);
  background: var(--card);
}
.page-news .rail-link.is-active,
.page-news .rail-link[aria-current="true"] {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.page-news .tl-track {
  position: relative;
  margin: 28px 0 0;
  padding-left: 26px;
}
.page-news .tl-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--blue) 30%, var(--blue) 100%);
  opacity: .55;
}
.page-news .tl-node {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 0 0 26px;
}
.page-news .tl-node:last-child {
  padding-bottom: 0;
}
.page-news .tl-marker {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-news .tl-dot {
  position: absolute;
  left: -26px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--card);
  border: 3px solid var(--blue);
}
.page-news .tl-node:first-child .tl-dot {
  border-color: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 107, 26, .18);
}
.page-news .tl-ver {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--ink);
}
.page-news .tl-body {
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.page-news .tl-node:first-child .tl-body {
  background: linear-gradient(150deg, #FFFFFF, var(--orange-soft));
  border-color: rgba(255, 107, 26, .35);
}
.page-news .tl-body h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}
.page-news .tl-body p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--news-body);
}
.page-news .tl-label {
  display: inline-block;
  min-width: 4.6em;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--blue);
}
.page-news .tl-more a {
  color: var(--orange-deep);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(178, 62, 0, .35);
}
.page-news .tl-more a:hover {
  border-bottom-color: var(--orange-deep);
}

/* 专题系列 */
.page-news .series-tabs {
  margin-top: 26px;
}
.page-news .series-tabs .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .series-tabs .tab-btn {
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--card);
  color: var(--graphite);
  font-size: 14px;
  cursor: pointer;
  transition: background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.page-news .series-tabs .tab-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.page-news .series-tabs .tab-btn[aria-selected="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.page-news .series-tabs .tab-panel {
  margin-top: 22px;
}
.page-news .series-grid {
  display: grid;
  gap: 16px;
}
.page-news .series-card {
  position: relative;
  padding: 20px 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--blue);
  box-shadow: var(--shadow-soft);
  transition: transform .24s ease-out, box-shadow .24s ease-out;
}
.page-news .series-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-island);
}
.page-news .series-meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}
.page-news .series-card h3 {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}
.page-news .series-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--news-body);
}
.page-news .series-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--graphite);
}

/* 更新节奏 */
.page-news .cadence-wrap {
  display: grid;
  gap: 26px;
}
.page-news .cadence-text p {
  max-width: 68ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--news-body);
}
.page-news .cadence-text a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 95, 255, .35);
}
.page-news .cadence-text a:hover {
  border-bottom-color: var(--blue);
}
.page-news .cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-news .cadence-stats {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}
.page-news .cadence-stats li {
  padding: 18px 18px 16px;
  background: var(--ink);
  border-radius: var(--radius-md);
  color: #fff;
  border-left: 4px solid var(--blue);
}
.page-news .cadence-stats li:nth-child(2) {
  border-left-color: var(--orange);
}
.page-news .cadence-stats li:nth-child(3) {
  border-left-color: var(--teal);
}
.page-news .cadence-unit {
  margin-left: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, .7);
}
.page-news .cadence-stats .num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: #fff;
}
.page-news .cadence-stats li:nth-child(2) .num {
  color: var(--orange-soft);
}
.page-news .cadence-stats p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .78);
}

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

@media (min-width: 920px) {
  .page-news .news-hero {
    padding: 30px 0 52px;
  }
  .page-news .news-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, .8fr);
    align-items: end;
    gap: 44px;
  }
  .page-news .notice-card {
    grid-template-columns: minmax(0, 1fr) 330px;
    align-items: center;
    gap: 32px;
    padding: 34px 34px 34px 40px;
  }
  .page-news .release-item {
    padding: 24px 24px 26px 40px;
  }
  .page-news .cadence-wrap {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, .85fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .rail-layout {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }
  .page-news .rail-aside {
    position: sticky;
    top: 96px;
  }
  .page-news .rail-nav {
    flex-direction: column;
    flex-wrap: nowrap;
  }
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page-news .release-head {
    gap: 8px;
  }
  .page-news .release-no {
    font-size: 18px;
  }
  .page-news .cadence-stats .num {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .release-item,
  .page-news .series-card,
  .page-news .rail-link {
    transition: none;
  }
  .page-news .series-card:hover {
    transform: none;
  }
}
<<<END>>>