.page-news {
  --news-gap: clamp(26px, 4.6vw, 60px);
  --news-hair: 1px solid rgba(20, 17, 15, .14);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-news .breadcrumb__link:hover {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  padding-top: clamp(20px, 3.4vw, 40px);
  padding-bottom: clamp(30px, 5vw, 64px);
}

.page-news .news-masthead__grid {
  display: grid;
  gap: var(--news-gap);
}

.page-news .news-masthead__title {
  margin: 12px 0 18px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(42px, 10vw, 104px);
  line-height: .95;
  letter-spacing: -.03em;
}

.page-news .news-masthead__hl {
  display: inline-block;
  position: relative;
}

.page-news .news-masthead__hl::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: .06em;
  width: 62%;
  height: 8px;
  background: var(--orange);
  opacity: .85;
  z-index: -1;
}

.page-news .news-masthead__lede {
  max-width: 54ch;
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.85;
  margin: 0;
}

.page-news .news-masthead__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-news .news-masthead__media {
  align-self: end;
}

.page-news .news-masthead__media .media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  background: var(--map);
}

.page-news .media__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 时间轴 ---------- */
.page-news .news-timeline {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0 0 0 20px;
  position: relative;
  display: grid;
  gap: 18px;
}

.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--sign));
}

.page-news .news-timeline__item {
  position: relative;
}

.page-news .news-timeline__item::before {
  content: "";
  position: absolute;
  left: -20px;
  top: .55em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--orange);
}

.page-news .news-timeline__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  text-decoration: none;
  color: var(--ink);
}

.page-news .news-timeline__link:hover .news-timeline__label {
  color: var(--orange);
}

.page-news .news-timeline__label {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
}

.page-news .news-timeline__note {
  font-family: var(--font-serif);
  font-size: 12.5px;
  color: var(--slate);
}

/* ---------- 条目区 ---------- */
.page-news .news-changes {
  border-top: var(--news-hair);
}

.page-news .news-changes__grid {
  align-items: start;
}

.page-news .news-toc {
  position: static;
  margin-bottom: 28px;
}

.page-news .news-toc .toc__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0 0 10px;
}

.page-news .news-toc .toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .news-toc .toc__link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--slate-soft);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  text-decoration: none;
  color: var(--ink);
  transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

.page-news .news-toc .toc__link:hover {
  background: var(--paper-warm);
  border-color: var(--orange);
}

.page-news .news-toc .toc__link[aria-current="true"] {
  background: var(--orange-soft);
  border-color: var(--orange);
  color: var(--ink-2);
  font-weight: 700;
}

.page-news .news-toc__note {
  display: none;
}

.page-news .news-stream__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}

.page-news .news-stream__intro {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  max-width: 48ch;
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-news .news-group {
  margin-bottom: clamp(26px, 3.4vw, 40px);
  scroll-margin-top: 96px;
}

.page-news .news-group__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 22px);
  margin: 0 0 6px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
}

/* ---------- 单条目 ---------- */
.page-news .entry {
  border-bottom: var(--news-hair);
}

.page-news .entry__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  transition: color .18s ease;
}

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

.page-news .entry__summary::marker {
  content: "";
}

.page-news .entry__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
  transition: transform .2s ease;
}

.page-news .entry[open] > .entry__summary::after {
  content: "−";
}

.page-news .entry__summary:hover .entry__title {
  color: var(--orange);
}

.page-news .entry__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.2vw, 30px);
  line-height: 1;
  color: var(--orange);
  letter-spacing: -.02em;
}

.page-news .entry__title {
  flex: 1 1 180px;
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 2.1vw, 20px);
  line-height: 1.45;
  transition: color .18s ease;
}

.page-news .entry .tag {
  font-family: var(--font-serif);
  font-size: 12px;
  padding: 3px 9px;
  border: 1px solid var(--slate-soft);
  border-radius: 2px;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .entry__body {
  padding: 0 0 20px;
}

.page-news .entry__body p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
  max-width: 56ch;
}

/* ---------- 版本迭代 ---------- */
.page-news .news-version__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-news .news-version__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.08;
  letter-spacing: -.025em;
  margin: 10px 0 14px;
}

.page-news .news-version__lede {
  font-family: var(--font-serif);
  font-size: 16.5px;
  line-height: 1.85;
  margin: 0 0 16px;
}

.page-news .release-badge {
  display: inline-block;
  background: var(--sign);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .06em;
  padding: 5px 12px;
  border-radius: 2px;
}

.page-news .version-track {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper);
  border-left: 4px solid var(--orange);
}

.page-news .vtrack__head {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
  margin: 0 0 12px;
}

.page-news .vtrack--new .vtrack__head {
  color: var(--orange);
}

.page-news .steps {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 12px;
  padding: 0;
}

.page-news .vstep {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 7px 13px;
  border-radius: 999px;
  white-space: nowrap;
}

.page-news .vstep--old {
  border: 1px dashed var(--slate-soft);
  color: var(--slate);
  text-decoration: line-through;
  text-decoration-color: var(--slate-soft);
}

.page-news .vstep--new {
  background: var(--orange);
  color: var(--ink);
  font-weight: 700;
}

.page-news .vtrack .note {
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
  margin: 0;
}

.page-news .news-version__body {
  margin-top: clamp(26px, 4vw, 44px);
  align-items: start;
  gap: var(--news-gap);
}

.page-news .news-subtitle {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.4;
  margin: 0 0 12px;
}

.page-news .news-version__text p {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.9;
  margin: 0 0 14px;
}

.page-news .news-version__links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
}

.page-news .news-version__media .media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  background: var(--map);
}

/* ---------- 维护节奏 ---------- */
.page-news .news-cadence__grid {
  align-items: start;
  gap: var(--news-gap);
}

.page-news .news-cadence__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: 10px 0 16px;
}

.page-news .news-cadence__text > p {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.9;
  margin: 0 0 18px;
  max-width: 56ch;
}

.page-news .process {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 0 0 14px;
  padding: 0;
}

.page-news .process__step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px 7px 8px;
  background: var(--paper-warm);
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 14px;
}

.page-news .process__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-news .news-cadence__text .note {
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--slate);
  margin: 0 0 20px;
  max-width: 56ch;
}

.page-news .news-cadence__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 3vw, 34px);
  padding-top: 18px;
  border-top: var(--news-hair);
}

.page-news .news-cadence__metrics .metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .news-cadence__metrics .metric__value {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1;
  color: var(--orange);
}

.page-news .news-cadence__metrics .metric__label {
  font-family: var(--font-serif);
  font-size: 12.5px;
  color: var(--slate);
}

.page-news .news-cadence__media .media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  background: var(--map);
}

.page-news .news-cadence__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 78ch;
}

/* ---------- 专题 ---------- */
.page-news .news-feature__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 38px);
}

.page-news .news-feature__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.05;
  letter-spacing: -.03em;
  margin: 10px 0 14px;
}

.page-news .news-feature__lede {
  font-family: var(--font-serif);
  font-size: 16.5px;
  line-height: 1.85;
  margin: 0;
  opacity: .84;
}

.page-news .news-feature__grid {
  align-items: start;
  gap: var(--news-gap);
}

.page-news .news-feature__media .media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  background: var(--ink-2);
}

.page-news .news-feature .media__caption {
  color: var(--slate-soft);
}

.page-news .series {
  border-top: 1px solid rgba(247, 243, 234, .22);
}

.page-news .series:last-child {
  border-bottom: 1px solid rgba(247, 243, 234, .22);
}

.page-news .series__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .series__summary::marker {
  content: "";
}

.page-news .series__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.5;
  transition: color .18s ease;
}

.page-news .series__summary:hover .series__title {
  color: var(--orange);
}

.page-news .series__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--sign);
  white-space: nowrap;
}

.page-news .series__body {
  padding: 0 0 18px;
}

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

.page-news .series__items a {
  display: block;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
  text-decoration: none;
  padding: 8px 12px;
  border-left: 2px solid rgba(232, 93, 42, .55);
  transition: border-color .18s ease, background-color .18s ease;
}

.page-news .series__items a:hover {
  border-color: var(--orange);
  background: rgba(247, 243, 234, .07);
}

/* ---------- 订阅 ---------- */
.page-news .news-subscribe {
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-news .subscribe {
  background: var(--paper-warm);
  border-left: 5px solid var(--orange);
  padding: clamp(24px, 4vw, 44px);
  display: grid;
  gap: 22px;
}

.page-news .subscribe__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}

.page-news .subscribe__copy p {
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.85;
  margin: 0;
  max-width: 58ch;
}

.page-news .subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-self: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-news .news-masthead__grid {
    grid-template-columns: 1.08fr .92fr;
    align-items: end;
  }

  .page-news .news-timeline {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 26px 0 0;
  }

  .page-news .news-timeline::before {
    left: 0;
    right: 0;
    top: 0;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, var(--orange) 0%, var(--orange) 60%, var(--sign) 60%, var(--sign) 100%);
  }

  .page-news .news-timeline__item {
    flex: 1 1 0;
  }

  .page-news .news-timeline__item::before {
    left: 0;
    top: -32px;
  }

  .page-news .news-timeline__link {
    flex-direction: column;
    gap: 3px;
  }

  .page-news .version-track {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-news .subscribe {
    grid-template-columns: 1.4fr auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-news .news-changes__grid {
    grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 64px);
  }

  .page-news .news-toc {
    position: sticky;
    top: 100px;
    margin-bottom: 0;
  }

  .page-news .news-toc .toc__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 6px;
    padding: 0;
  }

  .page-news .news-toc .toc__link {
    display: block;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 6px 0 6px 12px;
    font-size: 14px;
    color: var(--ink-2);
  }

  .page-news .news-toc .toc__link:hover {
    background: transparent;
    border-left-color: var(--slate-soft);
    color: var(--orange);
  }

  .page-news .news-toc .toc__link[aria-current="true"] {
    background: transparent;
    border-left-color: var(--orange);
    color: var(--ink);
  }

  .page-news .news-toc__note {
    display: block;
    margin: 16px 0 0;
    padding-left: 12px;
    font-family: var(--font-serif);
    font-size: 12px;
    line-height: 1.75;
    color: var(--slate);
  }

  .page-news .entry__summary {
    padding: 18px 0;
  }

  .page-news .entry__body {
    padding-left: 52px;
  }

  .page-news .news-cadence__grid,
  .page-news .news-version__body,
  .page-news .news-feature__grid {
    grid-template-columns: 1.15fr .85fr;
  }

  .page-news .news-cadence__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
}

@media (min-width: 1200px) {
  .page-news .news-masthead__grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 5vw, 88px);
  }

  .page-news .news-version__body {
    grid-template-columns: 1.25fr .75fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry__summary,
  .page-news .entry__title,
  .page-news .series__items a,
  .page-news .news-toc .toc__link {
    transition: none;
  }
}
<<<END>>>