.page-news {
  --pn-pad: clamp(20px, 4vw, 56px);
  --pn-gap: clamp(20px, 3vw, 40px);
}

.page-news .pn-wrap {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--pn-pad);
}

.page-news .pn-mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ---------- 面包屑 ---------- */
.page-news .pn-crumb {
  max-width: var(--shell-max);
  margin-inline: auto;
  padding: 18px var(--pn-pad) 0;
}
.page-news .pn-crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ice-soft);
}
.page-news .pn-crumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--graphite);
}
.page-news .pn-crumb a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.page-news .pn-crumb a:hover {
  color: var(--ice);
  border-bottom-color: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-news .pn-hero {
  padding-block: clamp(24px, 4vw, 48px) clamp(40px, 6vw, 80px);
}
.page-news .pn-hero__grid {
  display: grid;
  gap: var(--pn-gap);
  align-items: end;
}
.page-news .pn-hero__title {
  margin: 12px 0 18px;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(36px, 6.2vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--frost);
}
.page-news .pn-hero__sub {
  max-width: var(--measure);
  margin: 0 0 26px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--silver);
}
.page-news .pn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .pn-hero__issue {
  display: grid;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--line-strong);
}
.page-news .pn-hero__num {
  display: block;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(72px, 15vw, 168px);
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: rgba(95, 200, 240, 0.16);
  -webkit-text-stroke: 1px var(--line-strong);
}
.page-news .pn-hero__issuecap {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.1em;
  color: var(--ice);
}
.page-news .pn-hero__issuecap--dim {
  color: var(--silver);
  opacity: 0.72;
}
.page-news .pn-hero__media {
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: 1px solid var(--line);
  overflow: hidden;
}
.page-news .pn-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 5 / 2;
}

/* ---------- 首屏数据带 ---------- */
.page-news .pn-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-news .pn-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--ink);
}
.page-news .pn-stats .stat__num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}
.page-news .pn-stats .stat__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver);
  opacity: 0.8;
}

/* ---------- 通用区块与标题 ---------- */
.page-news .pn-section {
  padding-block: clamp(48px, 7vw, 96px);
}
.page-news .pn-section--night {
  background: var(--night);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-news .pn-head {
  max-width: 54em;
}
.page-news .pn-head h2 {
  margin: 10px 0 14px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(26px, 3.8vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--frost);
}
.page-news .pn-head__lede {
  margin: 0;
  max-width: var(--measure);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 本期看点 ---------- */
.page-news .pn-latest {
  display: grid;
  gap: var(--pn-gap);
  margin-top: clamp(26px, 4vw, 44px);
}
.page-news .pn-latest__fig {
  margin: 0;
  border: 1px solid var(--line-strong);
  overflow: hidden;
  background: var(--ink);
}
.page-news .pn-latest__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .pn-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 24px;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-news .pn-meta > div {
  padding: 14px 16px;
  background: var(--ink);
}
.page-news .pn-meta dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ice-soft);
  margin-bottom: 6px;
}
.page-news .pn-meta dd {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--frost);
}
.page-news .pn-latest__h3 {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--frost);
}
.page-news .pn-points {
  display: grid;
  gap: 12px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}
.page-news .pn-points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}
.page-news .pn-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 1px;
  background: var(--ice);
}

/* ---------- 专题系列带 ---------- */
.page-news .pn-track {
  display: flex;
  gap: 14px;
  max-width: var(--shell-max);
  margin-inline: auto;
  margin-top: clamp(24px, 3.5vw, 40px);
  padding: 4px var(--pn-pad) 20px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-news .pn-track:focus-visible {
  outline: 1px solid var(--ice);
  outline-offset: 4px;
}
.page-news .pn-seriescard {
  flex: 0 0 76%;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sharp);
  border-top: 2px solid var(--ice-deep);
}
.page-news .pn-seriescard__no {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold);
}
.page-news .pn-seriescard h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--frost);
}
.page-news .pn-seriescard__scope {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice);
}
.page-news .pn-seriescard__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
}
.page-news .pn-seriescard__next {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-size: 13px;
  line-height: 1.65;
  color: var(--mint);
}
.page-news .pn-track__hint {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--graphite);
}

/* ---------- 栏目筛选标签 ---------- */
.page-news .pn-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}
.page-news .pn-chips a {
  display: inline-block;
  padding: 7px 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--silver);
  text-decoration: none;
  border: 1px solid var(--graphite);
  border-radius: var(--radius-sharp);
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.page-news .pn-chips a:hover,
.page-news .pn-chips a:focus-visible {
  color: var(--ice);
  border-color: var(--line-strong);
}

/* ---------- 卡片流 ---------- */
.page-news .pn-feed {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3.5vw, 36px);
}
.page-news .pn-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: var(--ink);
  border: 1px solid var(--graphite);
  border-radius: var(--radius-sharp);
  transition: border-color 0.18s var(--ease);
}
.page-news .pn-card:hover {
  border-color: var(--ice);
}
.page-news .pn-card__thumb {
  margin: 0 0 4px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-news .pn-card__thumb img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .pn-card__tag {
  align-self: flex-start;
  padding: 4px 11px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-sharp);
  color: var(--gold);
}
.page-news .pn-card__tag--ice {
  color: var(--ice);
  border-color: var(--line-strong);
}
.page-news .pn-card__tag--mint {
  color: var(--mint);
  border-color: rgba(99, 224, 196, 0.42);
}
.page-news .pn-card__time {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice-soft);
}
.page-news .pn-card h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--frost);
}
.page-news .pn-card__lede {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}
.page-news .pn-card__more {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
}
.page-news .pn-card__more summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice);
  list-style: none;
}
.page-news .pn-card__more summary::-webkit-details-marker {
  display: none;
}
.page-news .pn-card__more summary::before {
  content: "▸";
  display: inline-block;
  transition: transform 0.18s var(--ease);
}
.page-news .pn-card__more[open] summary::before {
  transform: rotate(90deg);
}
.page-news .pn-card__more p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}
.page-news .pn-card__more a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

/* ---------- 版本编年带 ---------- */
.page-news .pn-chrono {
  position: relative;
  grid-column: 1 / -1;
  overflow: hidden;
  margin: 6px 0;
  padding: clamp(26px, 4vw, 46px) 0;
  background: var(--night);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.page-news .pn-chrono__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}
.page-news .pn-chrono__inner {
  position: relative;
  padding-inline: clamp(20px, 3vw, 32px);
}
.page-news .pn-chrono__h3 {
  margin: 8px 0 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--frost);
}
.page-news .pn-axis {
  display: flex;
  gap: 0;
  margin: 22px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-news .pn-axis__item {
  position: relative;
  flex: 0 0 auto;
  width: 178px;
  padding: 32px 22px 4px 0;
}
.page-news .pn-axis__item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-strong);
}
.page-news .pn-axis__dot {
  position: absolute;
  top: 5px;
  left: 0;
  width: 11px;
  height: 11px;
  background: var(--ice);
}
.page-news .pn-axis__dot--field {
  background: var(--ice);
  transform: rotate(45deg);
}
.page-news .pn-axis__dot--add {
  background: var(--mint);
  border-radius: 50%;
}
.page-news .pn-axis__dot--struct {
  background: var(--gold);
  border-radius: 0;
}
.page-news .pn-axis__ver {
  display: block;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 700;
  color: var(--frost);
}
.page-news .pn-axis__when {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ice-soft);
}
.page-news .pn-axis__what {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--silver);
}
.page-news .pn-chrono__legend {
  margin: 18px 0 0;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--graphite);
}

/* ---------- 使用场景 ---------- */
.page-news .pn-scenes {
  display: grid;
  gap: 0;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-news .pn-scene {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.page-news .pn-scene__no {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--ice-deep);
}
.page-news .pn-scene__who {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}
.page-news .pn-scene h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  line-height: 1.42;
  color: var(--frost);
}
.page-news .pn-scene__body p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 回溯入口 ---------- */
.page-news .pn-back {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3.5vw, 40px);
}
.page-news .pn-back__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px;
  background: var(--ink);
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  border-radius: var(--radius-sharp);
}
.page-news .pn-back__card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--frost);
}
.page-news .pn-back__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}
.page-news .pn-back__card .btn {
  align-self: flex-start;
  margin-top: auto;
}
.page-news .pn-back__note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}
.page-news .pn-back__note a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .pn-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .pn-seriescard {
    flex-basis: 320px;
  }
  .page-news .pn-back {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .pn-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(220px, 300px);
  }
  .page-news .pn-latest {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
  .page-news .pn-feed {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .pn-scene {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 24px;
  }
}

@media (min-width: 1240px) {
  .page-news .pn-feed {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-card,
  .page-news .pn-chips a,
  .page-news .pn-card__more summary::before {
    transition: none;
  }
}