.page-news {
  --pn-line: rgba(17, 17, 17, 0.12);
  --pn-line-soft: rgba(17, 17, 17, 0.06);
  --pn-gold-wash: rgba(201, 162, 39, 0.10);
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(44px, 7vw, 96px);
  overflow-x: clip;
}

.page-news .page-news__crumb {
  padding-top: clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-news .pn-masthead {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(30px, 5vw, 60px);
  border-bottom: 1px solid var(--pn-line);
}

.page-news .pn-masthead::before {
  content: "";
  position: absolute;
  right: -8%;
  top: 0;
  width: 46%;
  height: 100%;
  background: linear-gradient(160deg, rgba(201, 162, 39, 0.16), rgba(17, 17, 17, 0) 62%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-news .pn-masthead__grid {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 46px);
  align-items: end;
}

.page-news .pn-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(31px, 6.2vw, 62px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  margin: 12px 0 0;
  overflow-wrap: break-word;
}

.page-news .pn-title em {
  display: block;
  font-style: normal;
  font-weight: 600;
}

.page-news .pn-lede {
  max-width: 48ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--fog);
}

.page-news .pn-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--pn-line);
}

.page-news .pn-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .pn-facts__k {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-news .pn-facts__v {
  font-size: 14px;
  color: var(--ink);
}

.page-news .pn-masthead__plate {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(20px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow: hidden;
}

.page-news .pn-plate__v {
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: 0.12em;
  color: var(--gold);
  margin: 0;
}

.page-news .pn-plate__ticks {
  height: 42px;
  background-image: repeating-linear-gradient(90deg, var(--gold) 0 1px, transparent 1px 14px);
  border-bottom: 1px solid var(--gold-line);
  opacity: 0.6;
}

.page-news .pn-plate__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper-52);
}

/* ---------- 章节通用 ---------- */
.page-news .pn-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .pn-headlines-section {
  padding-top: clamp(36px, 6vw, 68px);
}

/* ---------- 头条 ---------- */
.page-news .pn-headlines {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-news .pn-lead {
  display: flex;
  flex-direction: column;
  background: var(--paper-warm);
  border: 1px solid var(--pn-line);
  overflow: hidden;
}

.page-news .pn-lead__media {
  margin: 0;
}

.page-news .pn-lead__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .pn-lead__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  padding: clamp(18px, 2.6vw, 30px);
}

.page-news .pn-lead__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(20px, 2.6vw, 29px);
  line-height: 1.38;
  margin: 0;
}

.page-news .pn-lead__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-news .pn-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .pn-stamp {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fog);
}

.page-news .pn-side-stack {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  align-content: start;
}

.page-news .pn-side {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--paper-warm);
  border: 1px solid var(--pn-line);
  border-left: 3px solid var(--gold);
  transition: border-left-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .pn-side--cinnabar {
  border-left-color: var(--cinnabar);
}

.page-news .pn-side:hover,
.page-news .pn-side:focus-within {
  transform: translateX(3px);
  border-left-color: var(--cinnabar);
}

.page-news .pn-side__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.45;
  margin: 0;
}

.page-news .pn-side__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--fog);
}

/* ---------- 常设栏目 ---------- */
.page-news .pn-columns-band {
  margin-top: clamp(44px, 7vw, 80px);
  padding: clamp(34px, 5vw, 62px) 0;
  background: var(--charcoal);
  color: var(--paper);
}

.page-news .pn-columns-band .eyebrow {
  color: var(--gold);
}

.page-news .pn-columns-band .section-title {
  color: var(--paper-warm);
}

.page-news .pn-columns-band .section-lede {
  color: var(--paper-52);
}

.page-news .pn-columns {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: clamp(22px, 4vw, 38px) 0 0;
  padding: 0;
  background: var(--paper-16);
  border: 1px solid var(--paper-16);
}

.page-news .pn-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 26px);
  background: var(--charcoal);
  transition: background 0.25s var(--ease);
}

.page-news .pn-column:hover {
  background: #262220;
}

.page-news .pn-column::after {
  content: "";
  display: block;
  width: 34px;
  height: 2px;
  margin-top: auto;
  background: var(--gold);
}

.page-news .pn-column--celadon::after {
  background: var(--celadon);
}

.page-news .pn-column--cinnabar::after {
  background: var(--cinnabar);
}

.page-news .pn-column__num {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-news .pn-column__name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(17px, 2vw, 22px);
  margin: 0;
  color: var(--paper-warm);
}

.page-news .pn-column__desc {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--paper-52);
}

/* ---------- 两栏主体 ---------- */
.page-news .pn-body {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
  margin-top: clamp(44px, 7vw, 80px);
}

.page-news .pn-stream {
  min-width: 0;
}

/* ---------- 周更记录 ---------- */
.page-news .pn-ledger {
  border-top: 1px solid var(--pn-line);
}

.page-news .ledger__week {
  border-bottom: 1px solid var(--pn-line);
}

.page-news .ledger__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 15px 4px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .ledger__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--gold-deep);
}

.page-news .ledger__week[open] > .ledger__summary::after {
  content: "\2212";
}

.page-news .ledger__summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-news .ledger__date {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
  font-weight: 600;
}

.page-news .pn-week__ver {
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border: 1px solid var(--pn-line);
  color: var(--fog);
}

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

.page-news .pn-week--earlier .ledger__date {
  color: var(--fog);
}

.page-news .ledger__list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 0 0 8px 6px;
  padding: 0 0 16px 16px;
  border-left: 1px solid var(--gold-line);
}

.page-news .ledger__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.78;
}

.page-news .ledger__item p {
  margin: 0;
  color: var(--charcoal);
}

/* ---------- 版本线索 ---------- */
.page-news .pn-versions {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(44px, 7vw, 74px);
  padding-top: clamp(30px, 5vw, 52px);
  border-top: 1px solid var(--pn-line);
}

.page-news .pn-versions__lede {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fog);
}

.page-news .pn-versions__media {
  margin: 0 0 22px;
}

.page-news .pn-versions__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .pn-timeline {
  list-style: none;
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 1px solid var(--pn-line);
}

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

.page-news .pn-timeline .timeline__marker {
  position: absolute;
  left: -29px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--gold);
}

.page-news .pn-timeline .timeline__date {
  margin: 0 0 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
}

.page-news .pn-timeline__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.45;
  margin: 0 0 6px;
}

.page-news .pn-timeline__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 专题系列 ---------- */
.page-news .pn-series {
  margin-top: clamp(44px, 7vw, 76px);
  padding-top: clamp(30px, 5vw, 52px);
  border-top: 1px solid var(--pn-line);
}

.page-news .pn-series__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-news .pn-series__media {
  margin: 0;
}

.page-news .pn-series__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .pn-series__list {
  list-style: none;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
}

.page-news .pn-serie {
  padding: 16px 0;
  border-bottom: 1px solid var(--pn-line-soft);
}

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

.page-news .pn-serie:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .pn-serie__idx {
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.page-news .pn-serie__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  margin: 0 0 6px;
}

.page-news .pn-serie__desc {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fog);
}

.page-news .pn-serie__meta {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--gold-deep);
}

/* ---------- 侧栏 ---------- */
.page-news .pn-rail {
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}

.page-news .pn-rail__card {
  padding: 16px 18px;
  background: var(--paper-warm);
  border: 1px solid var(--pn-line);
}

.page-news .pn-rail__card--plain {
  padding: 0;
  overflow: hidden;
}

.page-news .pn-rail__card--dark {
  background: var(--charcoal);
  border-color: var(--charcoal);
  color: var(--paper);
}

.page-news .pn-rail__kicker {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

.page-news .pn-rail__card--dark .pn-rail__kicker {
  color: var(--gold);
}

.page-news .pn-rail__nav {
  display: grid;
  gap: 2px;
}

.page-news .pn-rail__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 8px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .pn-rail__link:hover,
.page-news .pn-rail__link:focus-visible {
  background: var(--pn-gold-wash);
  border-left-color: var(--gold);
}

.page-news .pn-rail__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-news .pn-rail__n {
  font-size: 11px;
  color: var(--fog);
}

.page-news .pn-weeks {
  list-style: none;
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
}

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

.page-news .pn-weeks__item:last-child {
  border-bottom: 0;
}

.page-news .pn-weeks__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 4px;
  font-size: 13.5px;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-news .pn-weeks__link:hover,
.page-news .pn-weeks__link:focus-visible {
  background: var(--pn-gold-wash);
  color: var(--gold-deep);
}

.page-news .pn-weeks__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-news .pn-weeks__n {
  min-width: 26px;
  font-size: 12px;
  color: var(--gold-deep);
}

.page-news .pn-weeks__link .tag {
  margin-left: auto;
}

.page-news .pn-rail__media {
  margin: 0;
}

.page-news .pn-rail__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .pn-rail__card--plain .figure-caption {
  padding: 10px 16px 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--fog);
}

.page-news .pn-rail__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--paper-52);
}

/* ---------- 回访 ---------- */
.page-news .pn-revisit {
  margin-top: clamp(50px, 8vw, 96px);
  padding: clamp(36px, 5.5vw, 68px) 0;
  background: var(--ink);
  color: var(--paper);
}

.page-news .pn-revisit__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-news .pn-revisit .eyebrow {
  color: var(--gold);
}

.page-news .pn-revisit__title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  margin: 10px 0 14px;
  color: var(--paper-warm);
}

.page-news .pn-revisit__lede {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper-72);
}

.page-news .pn-revisit__cards {
  display: grid;
  gap: 1px;
  background: var(--paper-16);
  border: 1px solid var(--paper-16);
}

.page-news .pn-revisit__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  transition: background 0.22s var(--ease);
}

.page-news .pn-revisit__card:hover,
.page-news .pn-revisit__card:focus-visible {
  background: #221e1a;
}

.page-news .pn-revisit__card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-news .pn-revisit__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .pn-revisit__t {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
}

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

@media (min-width: 720px) {
  .page-news .pn-columns {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-news .pn-versions {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }

  .page-news .pn-revisit__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }
}

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

  .page-news .pn-masthead__plate {
    min-height: 250px;
    transform: translateY(-8px);
  }

  .page-news .pn-headlines {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }

  .page-news .pn-series__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-news .pn-body {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .pn-rail {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1080px) {
  .page-news .pn-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-side,
  .page-news .pn-column,
  .page-news .pn-rail__link,
  .page-news .pn-weeks__link,
  .page-news .pn-revisit__card {
    transition: none;
  }

  .page-news .pn-side:hover,
  .page-news .pn-side:focus-within {
    transform: none;
  }
}
<<<END>>>