.page-news {
  --news-cut: 16px;
  --news-row: clamp(20px, 2.6vw, 34px);
  --news-soft: rgba(42, 51, 49, .72);
  --news-soft-dim: rgba(42, 51, 49, .52);
  background: var(--mist);
  color: var(--graphite);
}

/* ---------------- 首屏 ---------------- */
.page-news .news-hero {
  position: relative;
  background: var(--ink-deep);
  color: var(--mist);
  overflow: hidden;
  padding-bottom: clamp(32px, 5vw, 60px);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(199, 207, 204, .05) 1px, transparent 1px);
  background-size: 100% 56px;
  pointer-events: none;
}

.page-news .news-hero .container {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__crumbs {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-news .news-hero__crumbs a,
.page-news .news-hero__crumbs .crumbs__sep {
  color: var(--silver-dim);
}

.page-news .news-hero__crumbs a:hover {
  color: var(--cyan);
}

.page-news .news-hero__crumbs [aria-current] {
  color: var(--mist);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
  padding: clamp(24px, 4vw, 44px) 0 clamp(28px, 4vw, 44px);
}

.page-news .news-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .news-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 68px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-news .news-hero__dek {
  margin: 0 0 16px;
  max-width: 34em;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.78;
  color: rgba(244, 246, 245, .84);
}

.page-news .news-hero__stamp {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--silver-dim);
}

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

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  filter: saturate(.5) contrast(1.06);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 0;
  padding: clamp(22px, 3vw, 30px) 0 0;
  border-top: 1px solid var(--hair);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2.6vw, 30px);
}

.page-news .news-hero__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--cyan);
}

.page-news .news-hero__unit {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: var(--silver-dim);
}

/* ---------------- 分类标签 ---------------- */
.page-news .news-cats {
  background: var(--mist);
  padding: clamp(40px, 6vw, 72px) 0 clamp(26px, 4vw, 40px);
}

.page-news .news-cats__head {
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-news .news-cats__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hair);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}

.page-news .cat-chip {
  position: relative;
  display: block;
  height: 100%;
  padding: clamp(18px, 2.4vw, 26px) clamp(16px, 2vw, 22px);
  background: var(--mist);
  text-decoration: none;
  transition: background var(--dur) var(--ease);
}

.page-news .cat-chip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width var(--dur) var(--ease);
}

.page-news .cat-chip:hover {
  background: #ffffff;
}

.page-news .cat-chip:hover::before {
  width: 100%;
}

.page-news .cat-chip__name {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .01em;
  color: var(--graphite);
}

.page-news .cat-chip__desc {
  display: block;
  font-size: 14px;
  line-height: 1.72;
  color: var(--news-soft);
}

/* ---------------- 列表 + 左侧刻度 ---------------- */
.page-news .news-latest {
  background: var(--mist);
  padding: 0 0 clamp(48px, 7vw, 88px);
}

.page-news .news-layout {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

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

.page-news .news-rail__label {
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--silver-dim);
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .news-rail__list .rail__item {
  position: relative;
}

.page-news .news-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0 8px 12px;
  border-left: 2px solid var(--hair);
  font-size: 14px;
  line-height: 1.5;
  color: var(--news-soft);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-rail__link:hover {
  color: var(--ink-deep);
  border-left-color: var(--silver-dim);
}

.page-news .news-rail__list .rail__item.is-active .news-rail__link {
  color: var(--ink-deep);
  border-left-color: var(--cyan);
}

.page-news .news-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--silver-dim);
}

.page-news .news-stream__head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 0 clamp(12px, 2vw, 22px);
  padding: var(--news-row) 0;
  border-bottom: 1px solid var(--hair);
  transition: background var(--dur) var(--ease);
}

.page-news .news-item:hover {
  background: rgba(41, 240, 210, .045);
}

.page-news .news-item__index {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver-dim);
  transition: color var(--dur) var(--ease);
}

.page-news .news-item:hover .news-item__index {
  color: var(--cyan);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
}

.page-news .news-item__stage {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--news-soft-dim);
}

.page-news .news-item__title {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--graphite);
}

.page-news .news-item__excerpt {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--news-soft);
}

.page-news .news-item__figure {
  margin: 18px 0 0;
}

.page-news .news-item__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.45) contrast(1.08);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-news .news-item__figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--news-soft-dim);
}

/* ---------------- 数据观察 ---------------- */
.page-news .news-observe {
  background: var(--ink-mid);
  color: var(--mist);
  padding: clamp(44px, 6vw, 80px) 0;
}

.page-news .news-observe__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

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

.page-news .news-observe__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.68) contrast(1.05);
  clip-path: polygon(18px 0, 100% 0, 100% 100%, 0 100%, 0 18px);
}

.page-news .news-observe__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-news .news-observe__title {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-news .news-observe__text {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(244, 246, 245, .82);
}

.page-news .news-observe__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-observe__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(244, 246, 245, .78);
}

.page-news .news-observe__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-news .news-observe__list span {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

/* ---------------- 专题系列 ---------------- */
.page-news .news-series {
  background: var(--ink-night);
  color: var(--mist);
  padding: clamp(44px, 6vw, 80px) 0;
}

.page-news .news-series .section-head__title {
  color: var(--mist);
}

.page-news .news-series .section-head__note {
  color: var(--silver-dim);
}

.page-news .news-series__track-wrap {
  margin-top: clamp(24px, 3vw, 36px);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-mid) transparent;
}

.page-news .news-series__track {
  list-style: none;
  margin: 0;
  padding: 0 0 14px;
  display: flex;
  gap: clamp(14px, 2vw, 24px);
  width: max-content;
}

.page-news .series-card {
  scroll-snap-align: start;
  flex: 0 0 clamp(230px, 74vw, 296px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--ink-mid);
  border-left: 2px solid var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.page-news .series-card:hover {
  transform: translateY(-2px);
}

.page-news .series-card--wide {
  flex-basis: clamp(250px, 80vw, 360px);
}

.page-news .series-card__figure {
  margin: 0;
}

.page-news .series-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(.42) contrast(1.12);
}

.page-news .series-card__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-news .series-card__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--mist);
}

.page-news .series-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 246, 245, .74);
}

.page-news .series-card__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hair-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--silver-dim);
}

/* ---------------- 版本与旧版对照 ---------------- */
.page-news .news-versions {
  background: var(--mist);
  padding: clamp(44px, 6vw, 80px) 0;
}

.page-news .news-versions__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-news .news-versions__title {
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--graphite);
}

.page-news .news-versions__text {
  margin: 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--news-soft);
}

.page-news .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-news .version-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: 1px solid var(--hair);
  transition: background var(--dur) var(--ease);
}

.page-news .version-item:hover {
  background: rgba(255, 166, 43, .07);
}

.page-news .version-item__code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--amber-deep);
}

.page-news .version-item__title {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--graphite);
}

.page-news .version-item__text {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-soft);
}

/* ---------------- 订阅与回顾 ---------------- */
.page-news .news-follow {
  background: var(--mist);
  padding: 0 0 clamp(48px, 7vw, 88px);
}

.page-news .news-follow__panel {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  padding: clamp(28px, 4vw, 52px);
  background: var(--ink-deep);
  color: var(--mist);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-news .news-follow__title {
  margin: 0 0 16px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-news .news-follow__text {
  margin: 0 0 24px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 246, 245, .8);
}

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

.page-news .news-follow__panel .btn--ghost {
  color: var(--mist);
  border-color: rgba(199, 207, 204, .4);
}

.page-news .news-follow__panel .btn--ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-news .news-follow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-news .news-follow__item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 0 14px;
}

.page-news .news-follow__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-news .news-follow__itemtitle {
  margin: 0 0 6px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.5;
  color: var(--mist);
}

.page-news .news-follow__itemtext {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 246, 245, .72);
}

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

  .page-news .version-item {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 0 18px;
  }

  .page-news .version-item .tag {
    grid-column: 2;
    justify-self: start;
    margin-top: 10px;
  }

  .page-news .news-item {
    grid-template-columns: 64px minmax(0, 1fr);
  }
}

@media (min-width: 820px) {
  .page-news .news-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-news .news-observe__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-news .news-versions__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

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

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

  .page-news .news-item--feature > .news-item__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    grid-template-areas:
      "meta figure"
      "title figure"
      "excerpt figure";
    column-gap: clamp(20px, 3vw, 36px);
    align-items: start;
  }

  .page-news .news-item--feature .news-item__meta {
    grid-area: meta;
  }

  .page-news .news-item--feature .news-item__title {
    grid-area: title;
  }

  .page-news .news-item--feature .news-item__excerpt {
    grid-area: excerpt;
  }

  .page-news .news-item--feature .news-item__figure {
    grid-area: figure;
    margin: 0;
  }
}

@media (min-width: 1000px) {
  .page-news .news-layout {
    grid-template-columns: 168px minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 1120px) {
  .page-news .news-cats__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .version-item {
    grid-template-columns: 72px minmax(0, 1fr) auto;
    align-items: start;
  }

  .page-news .version-item .tag {
    grid-column: 3;
    margin-top: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .cat-chip,
  .page-news .cat-chip::before,
  .page-news .news-item,
  .page-news .news-item__index,
  .page-news .news-rail__link,
  .page-news .series-card,
  .page-news .version-item {
    transition: none;
  }

  .page-news .series-card:hover {
    transform: none;
  }
}