.page-news {
  background: var(--ink);
  color: var(--muted);
  font-family: var(--font-sans);
  padding-bottom: clamp(44px, 7vw, 84px);
}

.page-news .news-crumb {
  margin: clamp(18px, 3vw, 28px) 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-news .news-crumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-news .news-crumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏声明区 ---------- */

.page-news .news-masthead {
  display: grid;
  gap: 20px;
  margin-top: clamp(16px, 3vw, 26px);
  padding-top: clamp(20px, 4vw, 34px);
  border-top: 1px solid var(--wire);
}

.page-news .news-masthead-side {
  border-left: 2px solid var(--amber);
  padding-left: 14px;
}

.page-news .news-issue {
  margin: 0;
  font-size: clamp(26px, 6vw, 34px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-news .news-issue-note {
  margin: 9px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .news-masthead h1 {
  margin: 10px 0 0;
  font-size: clamp(25px, 5.2vw, 40px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-masthead .lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 2.4vw, 16.5px);
  line-height: 1.85;
  color: var(--muted);
}

@media (min-width: 880px) {
  .page-news .news-masthead {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

/* ---------- 更新节奏 ---------- */

.page-news .news-cadence {
  list-style: none;
  margin: clamp(26px, 5vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--wire);
  border: 1px solid var(--wire);
}

.page-news .news-cadence li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--panel);
}

.page-news .news-cadence-num {
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-news .news-cadence-label {
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

@media (min-width: 760px) {
  .page-news .news-cadence {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 主体骨架 ---------- */

.page-news .news-body {
  margin-top: clamp(30px, 6vw, 54px);
}

@media (min-width: 1000px) {
  .page-news .news-body {
    display: grid;
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }
}

.page-news .news-toc {
  margin-bottom: 26px;
}

.page-news .news-toc-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-news .news-toc-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.page-news .news-toc-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 11px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--wire);
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-news .news-toc-num {
  font-size: 11px;
  color: var(--ember);
}

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

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

.page-news .news-toc-back {
  display: inline-block;
  margin-top: 14px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--amber);
  text-decoration: none;
}

.page-news .news-toc-back:hover {
  text-decoration: underline;
}

@media (min-width: 1000px) {
  .page-news .news-toc {
    position: sticky;
    top: calc(var(--bar-h) + 18px);
    margin-bottom: 0;
  }

  .page-news .news-toc-list {
    display: block;
    overflow: visible;
    border-left: 1px solid var(--wire);
    padding-bottom: 0;
  }

  .page-news .news-toc-link {
    border: 0;
    border-left: 2px solid transparent;
    margin-left: -1px;
    white-space: normal;
    padding: 8px 12px;
  }
}

/* ---------- 章节 ---------- */

.page-news .news-section + .news-section {
  margin-top: clamp(38px, 7vw, 66px);
}

.page-news .news-section-head {
  display: grid;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: clamp(20px, 4vw, 30px);
  border-bottom: 1px solid var(--wire);
}

.page-news .news-sec-num {
  font-size: 20px;
  line-height: 1.4;
  letter-spacing: 0.1em;
  color: var(--ember);
}

.page-news .news-section-head h2 {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 27px);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-news .news-section-head p {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-news .news-section-head {
    grid-template-columns: 60px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
}

/* ---------- 图片 ---------- */

.page-news .news-figure {
  margin: 0 0 clamp(20px, 4vw, 30px);
}

.page-news .news-figure .figure-frame {
  overflow: hidden;
}

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

.page-news .news-figure .caption {
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-news .news-figure--inset {
  max-width: 560px;
}

/* ---------- 条目 ---------- */

.page-news .news-items {
  display: grid;
  gap: 20px;
}

.page-news .news-item {
  display: grid;
  gap: 12px;
  padding: 18px 0 0;
  border-top: 1px solid var(--wire);
}

.page-news .news-item-rail {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-news .news-item-rail::before {
  content: "";
  display: block;
  width: 12px;
  height: 1px;
  background: var(--ember);
}

.page-news .news-item-no {
  font-size: 20px;
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .news-item-body h3 {
  margin: 0;
  font-size: clamp(17px, 2.6vw, 20px);
  line-height: 1.45;
  font-weight: 700;
  color: var(--paper);
}

.page-news .news-item-body p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--muted);
}

.page-news .news-item--lead {
  background: var(--panel);
  border: 1px solid var(--wire);
  border-left: 3px solid var(--amber);
  padding: clamp(18px, 3.4vw, 26px);
}

.page-news .news-item--lead h3 {
  font-size: clamp(18px, 3vw, 22px);
}

.page-news .news-points {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .news-points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.68;
  color: var(--paper);
}

.page-news .news-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 1px;
  background: var(--amber);
}

.page-news .news-links {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--muted);
}

.page-news .news-links a,
.page-news .backfill-col a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 224, 0.42);
}

.page-news .news-links a:hover,
.page-news .backfill-col a:hover {
  border-bottom-color: var(--cyan);
}

@media (min-width: 760px) {
  .page-news .news-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 26px;
  }

  .page-news .news-item-rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
  }

  .page-news .news-item--lead {
    grid-template-columns: 108px minmax(0, 1fr);
  }
}

/* ---------- 分类标签 ---------- */

.page-news .news-chip {
  display: inline-block;
  padding: 3px 9px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  border: 1px solid var(--wire);
  border-radius: var(--radius);
  background: var(--rail);
  color: var(--muted);
}

.page-news .news-chip--version {
  color: var(--cyan);
  border-color: rgba(34, 211, 224, 0.5);
}

.page-news .news-chip--index {
  color: var(--amber);
  border-color: rgba(242, 169, 59, 0.5);
}

.page-news .news-chip--note {
  color: var(--ember);
  border-color: rgba(226, 96, 63, 0.5);
}

/* ---------- 版本日志 ---------- */

.page-news .news-versions {
  display: grid;
  gap: 10px;
}

.page-news .news-version {
  background: var(--panel);
  border: 1px solid var(--wire);
}

.page-news .news-version > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 14px 16px;
}

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

.page-news .news-version > summary::marker {
  content: "";
}

.page-news .news-version > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--cyan);
}

.page-news .news-version[open] > summary::after {
  content: "\2013";
}

.page-news .news-version > summary:hover .news-version-title {
  color: var(--cyan);
}

.page-news .news-version-no {
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-news .news-version-title {
  flex: 1 1 180px;
  font-size: 14.5px;
  color: var(--paper);
  transition: color 0.2s ease;
}

.page-news .news-version-body {
  margin: 0;
  padding: 14px 16px 16px;
  border-top: 1px dashed var(--wire);
}

.page-news .news-version-body dl {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-version-body dt {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-news .news-version-body dd {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 索引调整（纸面区块） ---------- */

.page-news .news-paper {
  background: var(--paper);
  color: var(--black);
  border: 1px solid var(--paper-2);
  box-shadow: 8px 8px 0 rgba(11, 27, 43, 0.5);
  padding: clamp(20px, 4vw, 36px);
}

.page-news .news-paper .news-section-head {
  border-bottom-color: rgba(26, 31, 38, 0.2);
}

.page-news .news-paper .news-section-head h2 {
  color: var(--black);
}

.page-news .news-paper .news-section-head p {
  color: rgba(26, 31, 38, 0.74);
}

.page-news .news-paper .caption {
  color: rgba(26, 31, 38, 0.66);
}

.page-news .news-index-list {
  list-style: none;
  counter-reset: idx;
  margin: 0;
  padding: 0;
}

.page-news .news-index-list li {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-top: 1px solid rgba(26, 31, 38, 0.16);
}

.page-news .news-index-list .index-no {
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ember);
}

.page-news .news-index-list .index-kind {
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: rgba(26, 31, 38, 0.62);
  border-left: 2px solid var(--amber);
  padding-left: 8px;
}

.page-news .news-index-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--black);
}

.page-news .news-index-stat {
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--paper-2);
  border-left: 3px solid var(--cyan);
  font-size: 14px;
  line-height: 1.75;
  color: var(--black);
}

.page-news .news-index-stat .mono {
  font-size: 16px;
  color: var(--ember);
}

@media (min-width: 720px) {
  .page-news .news-index-list li {
    grid-template-columns: 46px 132px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 专题系列 ---------- */

.page-news .news-series-track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 12px;
  scroll-snap-type: x proximity;
}

.page-news .news-series-track:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-news .series-card {
  flex: 0 0 min(78vw, 272px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--wire);
  border-top: 3px solid var(--cyan);
}

.page-news .series-card:nth-child(2) {
  border-top-color: var(--amber);
}

.page-news .series-card:nth-child(3) {
  border-top-color: var(--ember);
}

.page-news .series-card:nth-child(4) {
  border-top-color: var(--paper-2);
}

.page-news .series-meta {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-news .series-card h3 {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .series-card p {
  margin: 0;
  flex: 1;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--muted);
}

.page-news .series-card a {
  align-self: flex-start;
  font-size: 13.5px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 224, 0.42);
}

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

.page-news .news-series-hint {
  margin: 4px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 回看与订阅 ---------- */

.page-news .news-backfill {
  display: grid;
  gap: 18px;
}

.page-news .backfill-col {
  padding: clamp(18px, 3vw, 24px);
  background: var(--panel);
  border: 1px solid var(--wire);
}

.page-news .backfill-col h3 {
  margin: 0;
  font-size: 17px;
  color: var(--paper);
}

.page-news .backfill-col p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

.page-news .backfill-col ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .backfill-col li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
  overflow-wrap: break-word;
}

.page-news .backfill-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

@media (min-width: 820px) {
  .page-news .news-backfill {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }
}

/* ---------- 收尾定位 ---------- */

.page-news .news-top-link {
  margin: clamp(34px, 6vw, 52px) 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--wire);
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-toc-link,
  .page-news .news-version-title,
  .page-news .series-card a {
    transition: none;
  }
}
<<<END>>>