.page.page-news {
  width: min(var(--wrap), 100% - 32px);
  margin-inline: auto;
  padding-bottom: clamp(56px, 9vw, 96px);
  color: var(--bright);
  font-family: var(--font-body);
}

.page-news img {
  max-width: 100%;
  height: auto;
}

/* 面包屑 */
.page-news .breadcrumbs {
  margin: 18px 0 16px;
}

.page-news .crumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--frost);
}

.page-news .crumb-list li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line-dark);
}

.page-news .crumb-link {
  color: var(--frost);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .crumb-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .crumb-current {
  color: var(--bright);
}

/* 页头：左侧窄轴 + 右侧主体，两端高度刻意不等 */
.page-news .news-head {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 22px 18px 24px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-l);
  background: linear-gradient(158deg, var(--navy-800) 0%, var(--navy-900) 70%);
  overflow: hidden;
}

.page-news .news-head::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--amber) 0%, var(--amber-deep) 46%, var(--cyan) 100%);
}

.page-news .head-axis {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-news .axis-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--frost);
}

.page-news .axis-note {
  flex: 1 1 100%;
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--frost);
}

.page-news .axis-facts {
  flex: 1 1 100%;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 8px 0 0;
}

.page-news .axis-facts .fact {
  padding-left: 12px;
  border-left: 1px solid var(--line-dark);
}

.page-news .axis-facts dt {
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--frost);
}

.page-news .axis-facts dd {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--bright);
}

.page-news .fact-num {
  font-size: 19px;
  letter-spacing: .05em;
  color: var(--amber);
}

.page-news .page-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(32px, 8.4vw, 52px);
  font-weight: 900;
  font-stretch: 92%;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--bright);
}

.page-news .page-lede {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--bright);
}

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

.page-news .tag-list a {
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .tag-list a:hover {
  color: var(--bright);
  border-color: var(--bright);
}

/* 顶部横幅 */
.page-news .news-banner {
  margin: 20px 0 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--navy-800);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .news-banner figcaption,
.page-news .news-figure figcaption {
  padding: 9px 14px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--frost);
  border-top: 1px solid var(--line-soft);
}

/* 主体两栏 */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 32px;
}

.page-news .rail-title {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--frost);
}

.page-news .rail-toc ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .rail-toc a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--bright);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .rail-toc a span {
  font-size: 11px;
  color: var(--frost);
}

.page-news .rail-toc a:hover {
  border-color: var(--line-dark);
  background: rgba(27, 58, 87, .55);
}

.page-news .rail-toc a[aria-current="location"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .rail-toc a[aria-current="location"] span {
  color: var(--cyan);
}

/* 区块骨架 */
.page-news .section {
  margin-bottom: 48px;
  scroll-margin-top: 96px;
}

.page-news .section:last-child {
  margin-bottom: 0;
}

.page-news .section-head {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .section-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(21px, 4.8vw, 27px);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.25;
  color: var(--bright);
}

.page-news .section-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--frost);
}

/* 条目流：左侧等宽版本号列 + 右侧摘要 */
.page-news .entry-stream {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-news .entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .entry-id {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-news .entry-id > .mono {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-news .entry-time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--frost);
}

.page-news .entry-tags {
  margin: 0 0 6px;
}

.page-news .entry-sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--bright);
}

.page-news .entry-more {
  margin-top: 10px;
}

.page-news .entry-more > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  color: var(--frost);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-news .entry-more > summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-news .entry-more[open] > summary::before {
  content: "–";
}

.page-news .entry-more > summary:hover,
.page-news .entry-more[open] > summary {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-news .entry-detail {
  margin-top: 10px;
  padding: 12px 14px;
  border-left: 2px solid var(--amber);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(27, 58, 87, .5);
  font-size: 14px;
  line-height: 1.85;
  color: var(--bright);
}

.page-news .entry-detail p {
  margin: 0 0 8px;
}

.page-news .entry-detail p:last-child {
  margin-bottom: 0;
}

/* 勘误条目 */
.page-news .entry-stream--errata {
  border-top-color: rgba(228, 85, 43, .55);
}

.page-news .entry--errata {
  padding-left: 14px;
  border-left: 2px solid var(--alert);
}

.page-news .entry--errata .entry-id > .mono {
  color: var(--alert);
  font-size: 14px;
}

/* 区块配图 */
.page-news .news-figure {
  margin: 0 0 20px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--navy-800);
  box-shadow: 0 10px 0 -6px rgba(201, 191, 174, .18);
}

.page-news .news-figure .img-slot {
  display: block;
  line-height: 0;
}

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

/* 栏目调整对照表 */
.page-news .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-m);
  background: rgba(18, 42, 64, .55);
}

.page-news .shift-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-news .shift-table th,
.page-news .shift-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .shift-table thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--frost);
  white-space: nowrap;
  border-bottom-color: var(--line-dark);
}

.page-news .shift-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-news .shift-table tbody td:first-child {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--amber);
  white-space: nowrap;
}

.page-news .shift-table tbody td:nth-child(2) {
  color: var(--frost);
}

.page-news .shift-table tbody td:nth-child(3) {
  color: var(--bright);
}

/* 回溯步骤 */
.page-news .steps {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-news .steps > li {
  position: relative;
  padding: 14px 16px 14px 58px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-m);
  background: rgba(18, 42, 64, .5);
}

.page-news .steps > li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 15px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-news .steps h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--bright);
}

.page-news .steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--frost);
}

.page-news .trace-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.page-news .trace-note {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(27, 58, 87, .45);
  font-size: 14px;
  line-height: 1.85;
  color: var(--bright);
}

.page-news .trace-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(75, 224, 208, .45);
}

.page-news .trace-note a:hover {
  border-bottom-color: var(--cyan);
}

/* 中等屏：条目转成两列 */
@media (min-width: 720px) {
  .page-news .entry {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 24px;
    padding: 18px 0;
  }

  .page-news .entry-id {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* 桌面：页头与主体分栏，目录常驻 */
@media (min-width: 900px) {
  .page-news .news-head {
    grid-template-columns: 238px minmax(0, 1fr);
    gap: 0 36px;
    padding: 30px 32px 34px;
  }

  .page-news .head-axis {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 4px 30px 4px 0;
    border-bottom: 0;
    border-right: 1px dashed var(--line-soft);
  }

  .page-news .axis-note,
  .page-news .axis-facts {
    flex: 0 0 auto;
  }

  .page-news .axis-facts {
    grid-template-columns: 1fr;
    gap: 14px;
    width: 100%;
    margin-top: 16px;
  }
}

@media (min-width: 1000px) {
  .page-news .news-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
    margin-top: 40px;
  }

  .page-news .news-rail {
    position: sticky;
    top: 106px;
  }

  .page-news .rail-toc ul {
    flex-direction: column;
    gap: 4px;
  }

  .page-news .rail-toc a {
    width: 100%;
    border-radius: var(--radius-s);
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition: none !important;
  }
}