.page-news {
  --news-rail: 232px;
  --news-stagger: 26px;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-news .news-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ash);
}

.page-news .news-crumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

.page-news .news-crumb a:hover {
  color: var(--paper);
}

.page-news .news-crumb .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  display: grid;
  gap: 16px;
  padding: clamp(26px, 4vw, 52px) 0 clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-hero h1 {
  max-width: 20ch;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.2vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-news .news-hero h1::after {
  content: "";
  display: block;
  width: 68px;
  height: 4px;
  margin-top: 18px;
  background: var(--amber);
}

.page-news .news-hero__lede {
  max-width: 44ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.82;
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

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

/* ---------- 版本摘要 ---------- */
.page-news .news-brief {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(22px, 3.4vw, 44px);
  background: linear-gradient(155deg, var(--ink-800), var(--ink-900) 78%);
  clip-path: var(--cut);
}

.page-news .news-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-brief__intro {
  margin: 14px 0 0;
  max-width: 40ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ash);
}

.page-news .news-brief__list {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-brief__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.page-news .news-brief__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-news .news-brief__list h3 {
  margin: 0 0 4px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .news-brief__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
}

.page-news .news-brief__more {
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ash);
}

.page-news .news-brief__more a,
.page-news .note__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

.page-news .news-brief__more a:hover,
.page-news .note__body a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber-line);
}

.page-news .news-brief__figure {
  margin: 0;
}

.page-news .news-brief__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  clip-path: var(--cut-sm);
  background: var(--ink-700);
}

.page-news .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  line-height: 1.7;
  color: var(--ash);
}

/* ---------- 更新条目 ---------- */
.page-news .news-updates {
  margin-top: clamp(40px, 6vw, 76px);
}

.page-news .news-body {
  display: grid;
  gap: 28px;
  margin-top: 18px;
}

.page-news .news-filterbar {
  position: sticky;
  top: var(--header-h-compact);
  z-index: 6;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 12px;
  padding: 10px 0;
  margin-bottom: 20px;
  background: rgba(7, 14, 26, 0.94);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(10px);
}

.page-news .news-filterbar .filter {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
}

.page-news .filter__btn {
  position: relative;
  padding: 9px 11px 12px;
  border: 0;
  background: transparent;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  color: var(--ash);
  cursor: pointer;
  transition: color 180ms var(--ease);
}

.page-news .filter__btn::after {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  bottom: 5px;
  height: 2px;
  background: var(--amber);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms var(--ease);
}

.page-news .filter__btn:hover,
.page-news .filter__btn[aria-pressed="true"],
.page-news .filter__btn[data-active],
.page-news .filter__btn.is-active {
  color: var(--paper);
}

.page-news .filter__btn:hover::after,
.page-news .filter__btn[aria-pressed="true"]::after,
.page-news .filter__btn[data-active]::after,
.page-news .filter__btn.is-active::after {
  transform: scaleX(1);
}

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

.page-news .filter__count {
  color: var(--ash);
}

.page-news .news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-news .entry {
  position: relative;
  padding: 20px;
  background: var(--ink-800);
  clip-path: var(--cut-sm);
}

.page-news .entry::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan-line), transparent 62%);
}

.page-news .entry[hidden] {
  display: none;
}

.page-news .entry--lead {
  background: linear-gradient(158deg, var(--ink-700), var(--ink-800) 72%);
}

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

.page-news .entry__media {
  margin: 0;
}

.page-news .entry__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: var(--cut-sm);
  background: var(--ink-900);
}

.page-news .entry__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-news .entry__time {
  color: var(--mute);
  white-space: nowrap;
}

.page-news .entry__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.3vw, 24px);
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .entry--lead .entry__title {
  font-size: clamp(20px, 2.7vw, 29px);
}

.page-news .entry__summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ash);
}

.page-news .entry--minor {
  padding-left: 22px;
  background: var(--ink-800);
}

.page-news .entry--minor::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--mute), transparent);
}

.page-news .entry__fold {
  margin-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.page-news .entry__fold .fold__summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

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

.page-news .entry__fold .fold__summary::marker {
  content: "";
}

.page-news .entry__fold[open] .fold__summary {
  color: var(--amber);
}

.page-news .entry__fold .fold__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .entry__fold .fold__body {
  padding: 2px 0 6px;
}

.page-news .entry__fold .fold__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ash);
}

.page-news .entry__fold .fold__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

/* ---------- 时间线窄栏 ---------- */
.page-news .news-rail {
  padding: 18px 18px 20px;
  background: var(--ink-800);
  clip-path: var(--cut-sm);
}

.page-news .news-rail > .mono-label {
  color: var(--ash);
}

.page-news .news-rail__list {
  position: relative;
  margin: 14px 0 16px;
  padding: 0 0 0 20px;
  list-style: none;
}

.page-news .news-rail__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--mute), rgba(169, 155, 209, 0.1));
}

.page-news .news-rail__list li {
  position: relative;
  padding: 7px 0;
}

.page-news .news-rail__list li::before {
  content: "";
  position: absolute;
  left: -19px;
  top: 15px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mute);
  transition: background 180ms var(--ease);
}

.page-news .news-rail__list li:hover::before {
  background: var(--cyan);
}

.page-news .news-rail__list a {
  display: block;
  text-decoration: none;
}

.page-news .news-rail__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-news .news-rail__label {
  display: block;
  margin-top: 2px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .news-rail__list a:hover .news-rail__label,
.page-news .news-rail__list a:focus-visible .news-rail__label {
  color: var(--cyan);
}

.page-news .news-rail__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-news .news-rail__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ash);
}

/* ---------- 方法笔记 ---------- */
.page-news .news-notes {
  margin-top: clamp(44px, 6vw, 80px);
}

.page-news .news-notes__grid {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.page-news .note {
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--ink-800);
  clip-path: var(--cut-sm);
}

.page-news .note--wide {
  background: linear-gradient(150deg, var(--ink-700), var(--ink-800));
}

.page-news .note__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .note h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.34;
  color: var(--paper);
}

.page-news .note__body {
  margin-top: 14px;
}

.page-news .note__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ash);
}

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

.page-news .note__figure {
  margin: 0;
  padding: 0;
}

.page-news .note__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  clip-path: var(--cut-sm);
  background: var(--ink-700);
}

/* ---------- 专题连载 ---------- */
.page-news .news-series {
  margin-top: clamp(44px, 6vw, 80px);
}

.page-news .news-series__head {
  display: grid;
  gap: 12px;
}

.page-news .news-series__lede {
  max-width: 52ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ash);
}

.page-news .news-series__banner {
  margin: 20px 0 0;
}

.page-news .news-series__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 3;
  object-fit: cover;
  clip-path: var(--cut);
  background: var(--ink-800);
}

.page-news .news-series__frames {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.page-news .frame {
  padding: 16px 16px 18px;
  background: var(--ink-700);
  clip-path: var(--cut-sm);
  border-top: 1px solid var(--line-soft);
}

.page-news .frame__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-news .frame h3 {
  margin: 8px 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--paper);
}

.page-news .frame p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--ash);
}

/* ---------- 订阅与反馈 ---------- */
.page-news .news-follow {
  display: grid;
  gap: 22px;
  margin-top: clamp(44px, 6vw, 80px);
  padding: clamp(22px, 3.4vw, 42px);
  background: var(--teal-950);
  clip-path: var(--cut);
}

.page-news .news-follow__main p {
  max-width: 46ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.86;
}

.page-news .news-follow__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 18px !important;
  opacity: 1 !important;
}

.page-news .news-follow__mail .mono-label {
  color: var(--ash);
}

.page-news .news-follow .copy {
  padding: 7px 12px;
  border: 1px solid var(--cyan-line);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--cyan);
  cursor: pointer;
  clip-path: var(--cut-sm);
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-news .news-follow .copy:hover,
.page-news .news-follow .copy:focus-visible {
  color: var(--amber);
  border-color: var(--amber-line);
}

.page-news .news-follow .copy:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .news-follow__note {
  font-size: 13.5px !important;
  color: var(--ash) !important;
  opacity: 1 !important;
}

.page-news .news-follow__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-news .news-follow__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-line);
}

.page-news .news-follow__link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber-line);
}

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

@media (min-width: 760px) {
  .page-news .entry--feature {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    align-items: start;
    gap: 22px;
  }

  .page-news .entry--feature .entry__media img {
    aspect-ratio: 3 / 2;
  }

  .page-news .news-brief__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }

  .page-news .news-brief__list li {
    padding-top: 16px;
  }
}

@media (min-width: 900px) {
  .page-news .news-brief {
    grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
    align-items: center;
  }

  .page-news .news-notes__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
  }

  .page-news .note__figure {
    grid-row: 1;
    grid-column: 2;
  }

  .page-news .note {
    grid-column: 1;
  }

  .page-news .note--wide {
    grid-column: 1 / -1;
  }

  .page-news .news-follow {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-news .news-hero {
    padding-right: 96px;
  }

  .page-news .news-hero__mark {
    display: block;
    position: absolute;
    right: 0;
    top: clamp(40px, 6vw, 84px);
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 11.5px;
    letter-spacing: 0.24em;
    color: var(--ash);
  }

  .page-news .news-body {
    grid-template-columns: minmax(0, 1fr) var(--news-rail);
    gap: 40px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h-compact) + 72px);
  }

  .page-news .entry--minor {
    width: 84%;
    margin-left: auto;
    margin-top: var(--news-stagger);
  }

  .page-news .entry--lead {
    margin-right: 4%;
  }
}

@media (min-width: 1180px) {
  .page-news .news-series__frames {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-notes__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px) minmax(0, 1fr);
  }

  .page-news .note__figure {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .page-news .note--wide {
    grid-column: 1 / span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter__btn,
  .page-news .filter__btn::after,
  .page-news .news-rail__list li::before,
  .page-news .news-follow .copy {
    transition: none;
  }
}
<<<END>>>