.page-news {
  --rail-w: 234px;
  --news-line: rgba(230, 233, 239, .13);
  --news-line-2: rgba(230, 233, 239, .26);
  --news-gap: clamp(40px, 6vw, 84px);
  background: var(--c-ink);
  color: var(--c-text);
  padding-bottom: clamp(56px, 9vw, 110px);
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumb {
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(22px, 3.5vw, 34px) var(--gutter) 0;
}
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-muted);
}
.page-news .breadcrumb li {
  display: inline-flex;
  align-items: center;
}
.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--news-line-2);
}
.page-news .breadcrumb a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-news .breadcrumb a:hover {
  color: var(--c-signal-soft);
}
.page-news .breadcrumb [aria-current="page"] {
  color: var(--c-text);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  isolation: isolate;
  margin-top: clamp(10px, 2vw, 22px);
}
.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 78%;
  z-index: -1;
  background: var(--c-plate);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
}
.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 44%;
  z-index: -1;
  background: linear-gradient(118deg, rgba(63, 169, 142, .22), rgba(63, 169, 142, 0));
  clip-path: polygon(0 0, 72% 40%, 100% 100%, 0 100%);
}
.page-news .news-hero-shell.shell {
  padding-block: clamp(36px, 6vw, 76px) clamp(22px, 3vw, 34px);
}
.page-news .news-hero .section-label {
  margin: 0;
  color: var(--c-signal-soft);
}
.page-news .news-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(28px, 5.2vw, 46px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--c-text);
}
.page-news .news-hero-lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-text);
  opacity: .86;
}
.page-news .news-hero-visual.shell {
  padding-bottom: clamp(30px, 4.5vw, 54px);
}
.page-news .news-hero-visual .figure {
  margin: 0;
}
.page-news .news-hero-visual .figure-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--news-line-2);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

/* ---------- 主体两栏 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 54px);
  margin-top: clamp(32px, 5vw, 58px);
}

/* ---------- 侧栏索引 ---------- */
.page-news .news-rail {
  border-top: 2px solid var(--c-celadon);
  padding-top: 16px;
}
.page-news .rail-label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-muted);
}
.page-news .rail-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .news-toc .toc-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--c-muted);
  text-decoration: none;
  border: 1px solid var(--news-line);
  border-radius: var(--radius);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-news .news-toc .toc-link:hover {
  color: var(--c-text);
  border-color: var(--news-line-2);
}
.page-news .news-toc .toc-link.is-active {
  color: var(--c-celadon);
  border-color: var(--c-celadon);
}
.page-news .rail-no {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-muted);
}
.page-news .news-toc .toc-link.is-active .rail-no {
  color: var(--c-celadon);
}
.page-news .rail-figure {
  display: none;
  margin: 28px 0 0;
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  margin-top: var(--news-gap);
}
.page-news .news-flow > .news-section:first-child {
  margin-top: 0;
}
.page-news .section-head {
  max-width: 62ch;
}
.page-news .news-section .section-label {
  margin: 0;
  color: var(--c-celadon);
  font-size: 11.5px;
  letter-spacing: .14em;
}
.page-news .news-section .section-title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -.005em;
  color: var(--c-text);
}
.page-news .section-intro {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-muted);
}

/* ---------- 01 摘要 ---------- */
.page-news .digest-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 3px;
  counter-reset: dg;
}
.page-news .digest-item {
  counter-increment: dg;
  position: relative;
  padding: clamp(20px, 3vw, 28px) clamp(18px, 3vw, 30px);
  padding-left: clamp(56px, 7vw, 82px);
  background: var(--c-plate);
  border-left: 3px solid var(--c-celadon);
}
.page-news .digest-item:nth-child(2) {
  border-left-color: var(--c-signal);
}
.page-news .digest-item:nth-child(3) {
  border-left-color: var(--c-paper-line);
}
.page-news .digest-item::before {
  content: "0" counter(dg);
  position: absolute;
  left: clamp(18px, 3vw, 30px);
  top: clamp(22px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--c-muted);
}
.page-news .digest-title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--c-text);
}
.page-news .digest-item p {
  margin: 8px 0 0;
  max-width: 50ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-muted);
}

/* ---------- 02 条目流 ---------- */
.page-news .log-legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
}
.page-news .log-group {
  margin-top: 30px;
}
.page-news .log-group-label {
  margin: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--news-line-2);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-muted);
}
.page-news .entry {
  border-bottom: 1px solid var(--news-line);
}
.page-news .entry-summary {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "index tag"
    "title title";
  gap: 8px 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}
.page-news .entry-summary::-webkit-details-marker {
  display: none;
}
.page-news .entry-summary::marker {
  content: "";
}
.page-news .entry-index {
  grid-area: index;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-muted);
}
.page-news .entry-title {
  grid-area: title;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-text);
  transition: color .2s var(--ease);
}
.page-news .entry-tag {
  grid-area: tag;
  justify-self: end;
  align-self: center;
}
.page-news .entry-summary:hover .entry-title {
  color: var(--c-signal-soft);
}
.page-news .entry[open] .entry-title {
  color: var(--c-celadon);
}
.page-news .entry-body {
  padding: 2px 0 22px;
}
.page-news .entry-body p {
  margin: 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--c-muted);
}

/* ---------- 专题提示带 ---------- */
.page-news .series-band {
  position: relative;
  margin: 22px 0;
  padding: 22px 46px 22px clamp(20px, 3vw, 34px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 22px;
  background: var(--c-plate);
  border-left: 3px solid var(--c-signal);
  clip-path: polygon(0 0, 100% 0, calc(100% - 30px) 100%, 0 100%);
}
.page-news .series-band p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-text);
}
.page-news .band-tag {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-signal);
  border: 1px solid rgba(255, 122, 41, .5);
  border-radius: var(--radius);
}
.page-news .band-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 169, 142, .45);
  padding-bottom: 2px;
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.page-news .band-link:hover {
  color: var(--c-text);
}

/* ---------- 03 专题 ---------- */
.page-news .series-grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}
.page-news .series-figure {
  margin: 0;
}
.page-news .series-figure .figure-media img,
.page-news .archive-figure .figure-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--news-line);
}
.page-news .series-panels {
  display: grid;
  gap: 3px;
  align-content: start;
}
.page-news .series-panel {
  background: var(--c-plate);
  border-left: 3px solid var(--c-celadon);
}
.page-news .series-panel > summary,
.page-news .archive-panel > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}
.page-news .series-panel > summary::-webkit-details-marker,
.page-news .archive-panel > summary::-webkit-details-marker {
  display: none;
}
.page-news .series-panel > summary::marker,
.page-news .archive-panel > summary::marker {
  content: "";
}
.page-news .series-panel[open] > summary {
  color: var(--c-celadon);
}
.page-news .series-code {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-muted);
}
.page-news .series-name {
  flex: 1 1 auto;
}
.page-news .series-panel .panel-body {
  padding: 0 18px 20px;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--c-muted);
}
.page-news .series-panel .panel-body p,
.page-news .archive-panel .panel-body p {
  margin: 0;
  max-width: 52ch;
}

/* ---------- 04 归档 ---------- */
.page-news .archive-grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}
.page-news .archive-panels {
  display: grid;
  gap: 3px;
  align-content: start;
}
.page-news .archive-panel {
  background: var(--c-plate-2);
  border-left: 3px solid var(--c-paper-line);
}
.page-news .archive-panel .panel-body {
  padding: 0 18px 20px;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--c-muted);
}
.page-news .archive-figure {
  margin: 0;
}
.page-news .archive-note {
  margin-top: 3px;
  padding: clamp(20px, 3vw, 26px) clamp(18px, 3vw, 28px);
  background: var(--c-archive);
  color: var(--c-text-dark);
  border-left: 3px solid var(--c-signal);
}
.page-news .archive-note-label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--c-muted-dark);
}
.page-news .archive-note-text {
  margin: 10px 0 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--c-text-dark);
}
.page-news .archive-note-text a {
  color: var(--c-text-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--c-signal);
  font-weight: 600;
}
.page-news .archive-note-text a:hover {
  color: #b34f0d;
}

/* ---------- 05 回访 ---------- */
.page-news .revisit-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 3px;
}
.page-news .revisit-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding: 20px clamp(16px, 3vw, 26px);
  background: var(--c-plate);
  border-left: 3px solid var(--news-line-2);
  transition: border-color .2s var(--ease);
}
.page-news .revisit-item:hover {
  border-left-color: var(--c-celadon);
}
.page-news .revisit-no {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-signal);
  padding-top: 3px;
}
.page-news .revisit-item h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-text);
}
.page-news .revisit-item p {
  margin: 7px 0 0;
  max-width: 50ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-muted);
}
.page-news .revisit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-news .entry-summary {
    grid-template-columns: 92px minmax(0, 1fr) auto;
    grid-template-areas: "index title tag";
    align-items: center;
    padding: 20px 0;
  }
  .page-news .entry-body {
    padding: 4px 0 24px 106px;
  }
}

@media (min-width: 900px) {
  .page-news .series-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
    align-items: start;
  }
  .page-news .archive-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }
}

@media (min-width: 1020px) {
  .page-news .news-layout {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 72px);
    align-items: start;
  }
  .page-news .news-rail {
    border-top: 0;
    padding-top: 6px;
    border-left: 2px solid var(--c-celadon);
    padding-left: 20px;
  }
  .page-news .rail-list {
    flex-direction: column;
    gap: 0;
    position: relative;
  }
  .page-news .rail-list::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 14px;
    bottom: 14px;
    width: 1px;
    background: var(--news-line-2);
  }
  .page-news .news-toc .toc-link {
    position: relative;
    border: 0;
    border-radius: 0;
    padding: 9px 10px 9px 22px;
  }
  .page-news .news-toc .toc-link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 11px;
    height: 11px;
    margin-top: -5.5px;
    border-radius: 50%;
    border: 1px solid var(--news-line-2);
    background: var(--c-ink);
    transition: background .24s var(--ease), border-color .24s var(--ease);
  }
  .page-news .news-toc .toc-link.is-active::before {
    background: var(--c-celadon);
    border-color: var(--c-celadon);
  }
  .page-news .rail-figure {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .breadcrumb a,
  .page-news .news-toc .toc-link,
  .page-news .news-toc .toc-link::before,
  .page-news .entry-title,
  .page-news .band-link,
  .page-news .revisit-item {
    transition: none;
  }
}
<<<END>>>