.page-news {
  --news-gap: clamp(24px, 4vw, 56px);
  --news-line-soft: rgba(143, 163, 176, 0.42);
  --news-ink-soft: #4A3D33;
  background: var(--cream);
  color: var(--ink-brown);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 6vw, 96px);
}

.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

.page-news .mono {
  font-family: var(--font-mono);
}

/* ---------- 报头 ---------- */
.page-news .news-masthead {
  max-width: var(--wrap-wide);
  margin: 0 auto;
  padding: clamp(20px, 3.4vw, 44px) var(--gutter) 0;
}

.page-news .news-masthead__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
  margin-top: clamp(20px, 3vw, 36px);
}

.page-news h1 {
  font-family: var(--font-head);
  font-size: clamp(32px, 5.4vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 14px 0 0;
  color: var(--ink-deep);
}

.page-news .news-lede {
  margin: 20px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.85;
  color: var(--news-ink-soft);
}

.page-news .news-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .news-stats {
  border-top: 2px solid var(--ink-deep);
  padding-top: 12px;
}

.page-news .news-stats__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--celadon);
  margin: 0 0 6px;
  font-weight: 500;
}

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

.page-news .news-stats__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 1px solid var(--news-line-soft);
}

.page-news .news-stats__key {
  font-family: var(--font-head);
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.page-news .news-stats__num {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink-deep);
  white-space: nowrap;
}

.page-news .news-stats__num em {
  font-style: normal;
  font-size: 11px;
  color: var(--muted);
  margin-left: 3px;
}

.page-news .news-cover {
  margin: clamp(26px, 3.6vw, 46px) 0 0;
}

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

/* ---------- 吸附索引条 ---------- */
.page-news .news-jump {
  position: relative;
  margin-top: clamp(26px, 3.6vw, 46px);
  background: var(--ink-deep);
  border-top: 1px solid var(--rail-line);
  border-bottom: 1px solid var(--rail-line);
  z-index: 3;
}

.page-news .news-jump__inner {
  max-width: var(--wrap-wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-news .news-jump__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--celadon-soft);
  padding: 17px 0;
  flex: 0 0 auto;
}

.page-news .news-jump__link {
  flex: 0 0 auto;
  font-family: var(--font-head);
  font-size: 13px;
  color: var(--rail-text);
  text-decoration: none;
  padding: 17px 0 15px;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-news .news-jump__link:hover,
.page-news .news-jump__link:focus-visible {
  color: var(--amber-soft);
  border-bottom-color: var(--amber);
}

/* ---------- 主体框架 ---------- */
.page-news .news-body {
  max-width: var(--wrap-wide);
  margin: 0 auto;
  padding: clamp(28px, 4vw, 56px) var(--gutter) 0;
  display: grid;
  gap: clamp(24px, 3.4vw, 48px);
}

.page-news .news-dir {
  border-top: 2px solid var(--ink-deep);
  padding-top: 10px;
}

.page-news .news-dir__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--celadon);
  margin: 0 0 4px;
}

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

.page-news .news-dir__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--news-line-soft);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 14px;
  color: var(--ink-brown);
  transition: color 160ms ease, padding-left 160ms ease;
}

.page-news .news-dir__list a:hover,
.page-news .news-dir__list a:focus-visible {
  color: var(--brick);
  padding-left: 5px;
}

.page-news .news-dir__list b {
  font-weight: 500;
  font-size: 12px;
  color: var(--muted);
}

.page-news .news-dir__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-dir__note a {
  color: var(--celadon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 章节 ---------- */
.page-news .news-section {
  padding: clamp(28px, 3.6vw, 48px) 0 0;
  scroll-margin-top: 76px;
}

.page-news .news-section:first-child {
  padding-top: 0;
}

.page-news .news-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-section__no {
  font-size: 13px;
  color: var(--amber);
  letter-spacing: 0.08em;
}

.page-news .news-section h2 {
  font-family: var(--font-head);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink-deep);
}

.page-news .news-section__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news .news-figure {
  margin: 22px 0 6px;
}

/* ---------- 条目 ---------- */
.page-news .entry {
  padding: 22px 0;
  border-bottom: 1px solid var(--news-line-soft);
  scroll-margin-top: 84px;
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin-bottom: 8px;
}

.page-news .entry__time {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .tag--topic {
  background: var(--celadon-soft);
  color: var(--ink-deep);
}

.page-news .entry__title {
  font-family: var(--font-head);
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink-deep);
}

.page-news .entry__sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--news-ink-soft);
}

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

.page-news .entry__more summary {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--celadon);
  cursor: pointer;
  list-style: none;
  display: inline-block;
  padding: 4px 0;
}

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

.page-news .entry__more summary::before {
  content: "▸ ";
  display: inline-block;
  transition: transform 180ms ease;
}

.page-news .entry__more[open] summary::before {
  content: "▾ ";
}

.page-news .entry__more summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-news .entry__more ul {
  margin: 8px 0 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--news-ink-soft);
}

.page-news .entry__more ul li + li {
  margin-top: 4px;
}

.page-news .entry__more a {
  color: var(--celadon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 版本轨道 ---------- */
.page-news .news-version {
  margin: 22px 0 0;
  padding: 18px clamp(14px, 2.4vw, 26px) 16px;
  background: var(--ink-navy);
  border-radius: var(--radius);
  border: 1px solid var(--rail-line);
}

.page-news .news-version__cap {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--celadon-soft);
}

.page-news .news-version__svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 640px;
  margin: 4px auto 0;
}

.page-news .news-version__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 6px 0 0;
  padding: 0;
}

.page-news .news-version__links a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 200, 121, 0.4);
  padding-bottom: 2px;
}

.page-news .news-version__links a:hover,
.page-news .news-version__links a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 专题 ---------- */
.page-news .topic-grid {
  display: grid;
  gap: 0 clamp(20px, 3vw, 40px);
}

.page-news .entry--topic {
  border-bottom: 1px solid var(--news-line-soft);
}

.page-news .entry__who {
  margin: 10px 0 0;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--celadon);
}

.page-news .news-tip {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--amber);
  background: var(--cream-2);
  font-size: 13px;
  line-height: 1.85;
  color: var(--news-ink-soft);
}

.page-news .news-tip a {
  color: var(--celadon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 订阅 ---------- */
.page-news .news-subscribe {
  margin-top: clamp(44px, 6vw, 88px);
  background: var(--ink-deep);
  color: var(--paper);
}

.page-news .news-subscribe__inner {
  max-width: var(--wrap-wide);
  margin: 0 auto;
  padding: clamp(32px, 4.6vw, 64px) var(--gutter);
  display: grid;
  gap: clamp(24px, 3.4vw, 48px);
}

.page-news .eyebrow--light {
  color: var(--celadon-soft);
}

.page-news .news-subscribe h2 {
  font-family: var(--font-head);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 10px 0 0;
  color: var(--paper);
}

.page-news .news-subscribe__text p {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--rail-text);
}

.page-news .news-subscribe__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-news .news-subscribe__note {
  margin: 6px 0 0;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--celadon-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-news .news-jump {
    position: sticky;
    top: 0;
  }

  .page-news .news-body {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-dir {
    position: sticky;
    top: 72px;
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .entry__sum {
    max-width: 62ch;
  }

  .page-news .news-subscribe__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-jump__link,
  .page-news .news-dir__list a,
  .page-news .entry__more summary::before {
    transition: none;
  }
}
<<<END>>>