.page-news {
  --nw-rail: 13rem;
  --nw-gap: clamp(1.75rem, 3.5vw, 3.25rem);
  --nw-pad: clamp(2.25rem, 4.5vw, 3.75rem);
  background: var(--yak);
  color: var(--ink);
  font-family: var(--font-sans);
}

/* ---------- 门框首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  overflow: hidden;
  background: var(--cobalt-deep);
  color: var(--on-deep);
  padding: clamp(1.75rem, 4vw, 2.75rem) 0 clamp(2.5rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--gold-line);
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 76% 30%, rgba(46, 123, 196, 0.55), transparent 58%),
    repeating-linear-gradient(90deg, rgba(247, 242, 232, 0.045) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(0deg, rgba(247, 242, 232, 0.045) 0 1px, transparent 1px 48px);
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  right: 5%;
  bottom: -1px;
  width: min(30rem, 44%);
  height: 78%;
  border: 1px solid var(--gold-line);
  border-bottom: none;
  border-radius: 999px 999px 0 0;
  opacity: 0.45;
  pointer-events: none;
}

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

.page-news .news-masthead .breadcrumb {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--on-deep-faint);
}

.page-news .news-masthead .breadcrumb a {
  color: var(--on-deep-dim);
  text-decoration: none;
}

.page-news .news-masthead .breadcrumb a:hover {
  color: var(--on-deep);
  text-decoration: underline;
}

.page-news .news-masthead__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: end;
}

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

.page-news .news-masthead .display {
  margin: 0.35rem 0 0;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.02;
  font-weight: 200;
  letter-spacing: -0.02em;
}

.page-news .news-masthead__intro {
  margin: 1.15rem 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--on-deep-dim);
}

.page-news .news-masthead__stats {
  list-style: none;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--gold-faint);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1.5rem;
}

.page-news .news-masthead__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--on-deep);
}

.page-news .news-masthead__lab {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--on-deep-faint);
}

/* ---------- 左索引 + 右正文 ---------- */
.page-news .news-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--nw-gap);
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(3rem, 7vw, 6rem);
}

.page-news .index-rail {
  position: sticky;
  top: var(--header-h);
  z-index: 4;
  padding-bottom: 0.5rem;
  background: linear-gradient(to bottom, var(--yak) 84%, rgba(247, 242, 232, 0));
}

.page-news .index-rail__cap {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-news .index-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .index-rail__list::-webkit-scrollbar {
  display: none;
}

.page-news .index-rail__link {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.8125rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .index-rail__link:hover {
  color: var(--cobalt-deep);
  border-color: var(--gold-line);
}

.page-news .index-rail__num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

/* ---------- 章节 ---------- */
.page-news .news-section {
  padding-block: var(--nw-pad);
  border-top: 1px solid var(--hair);
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-news .news-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .news-section .section-head__index {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-news .news-section .section-head__title {
  margin: 0.35rem 0 0;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cobalt-deep);
}

.page-news .news-section .section-head__desc {
  margin: 0.85rem 0 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-news .news-aside {
  margin: 1.75rem 0 0;
  padding: 0.9rem 1.1rem;
  border-left: 2px solid var(--gold);
  background: rgba(255, 255, 255, 0.6);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-aside a {
  color: var(--cobalt-mid);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-aside a:hover {
  color: var(--saffron);
}

/* ---------- 主推 ---------- */
.page-news .news-picks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}

.page-news .news-pick {
  padding: 1.3rem 1.2rem 1.45rem;
  background: var(--surface);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--cobalt-mid);
  box-shadow: var(--shadow-2);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .news-pick:hover {
  border-color: var(--gold-line);
  box-shadow: var(--shadow-1);
}

.page-news .news-pick__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--saffron);
}

.page-news .news-pick__title {
  margin: 0.6rem 0 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--cobalt-deep);
}

.page-news .news-pick__desc {
  margin: 0.65rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-pick__time {
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.page-news .news-cadence {
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--gold-faint);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1.5rem;
}

.page-news .news-cadence__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.375rem;
  line-height: 1.15;
  color: var(--cobalt-mid);
}

.page-news .news-cadence__lab {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 分类簇 ---------- */
.page-news .news-figure {
  margin: 2rem 0 0;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair);
  background: var(--sky);
}

.page-news .news-figure--band img {
  max-height: 22rem;
}

.page-news .news-figure .media-caption {
  margin-top: 0.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .news-clusters {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-news .news-cluster {
  padding: 1.05rem 1.05rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--hair);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .news-cluster:hover {
  border-color: var(--gold-line);
  transform: translateY(-2px);
}

.page-news .news-cluster__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news .news-cluster__title {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cobalt-deep);
}

.page-news .news-cluster__desc {
  margin: 0.55rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 条目列表 ---------- */
.page-news .news-entries {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-news .news-entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.45rem;
  padding: 1.1rem 0.25rem 1.15rem 1rem;
  border-bottom: 1px solid var(--hair);
  border-left: 2px solid var(--cobalt-bright);
  transition: background var(--dur) var(--ease);
}

.page-news .news-entry:hover {
  background: rgba(255, 255, 255, 0.7);
}

.page-news .news-entry--version,
.page-news .news-entry--special {
  border-left-color: var(--cobalt-mid);
}

.page-news .news-entry--guide,
.page-news .news-entry--keep {
  border-left-color: var(--saffron);
}

.page-news .news-entry--region,
.page-news .news-entry--export {
  border-left-color: var(--gold);
}

.page-news .news-entry--skill,
.page-news .news-entry--device,
.page-news .news-entry--service {
  border-left-color: var(--cobalt-bright);
}

.page-news .news-entry__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-news .news-entry__title {
  margin: 0.4rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

.page-news .news-entry__desc {
  margin: 0.45rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-entry__time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: var(--cobalt-bright);
  white-space: nowrap;
}

/* ---------- 导出 ---------- */
.page-news .news-export {
  margin-top: 2rem;
}

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

.page-news .news-export__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hair);
  background: var(--sky);
}

.page-news .news-export__figure .media-caption {
  margin-top: 0.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .news-export__panels {
  margin-top: 1.75rem;
}

.page-news .news-export__panels .accordion__item {
  border-bottom: 1px solid var(--hair);
}

.page-news .news-export__panels .accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--cobalt-deep);
  cursor: pointer;
}

.page-news .news-export__panels .accordion__trigger:hover {
  color: var(--saffron);
}

.page-news .news-export__panels .accordion__sign {
  flex: 0 0 auto;
  width: 1.25rem;
  height: 1.25rem;
  position: relative;
  border: 1px solid var(--gold-line);
  border-radius: 50%;
}

.page-news .news-export__panels .accordion__sign::before,
.page-news .news-export__panels .accordion__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cobalt-mid);
  transform: translate(-50%, -50%);
}

.page-news .news-export__panels .accordion__sign::before {
  width: 9px;
  height: 1px;
}

.page-news .news-export__panels .accordion__sign::after {
  width: 1px;
  height: 9px;
  transition: opacity var(--dur) var(--ease);
}

.page-news .news-export__panels .accordion__trigger[aria-expanded="true"] .accordion__sign::after {
  opacity: 0;
}

.page-news .news-export__panels .accordion__panel {
  padding: 0 0 1.25rem;
  border-left: 2px solid var(--saffron);
  padding-left: 1rem;
}

.page-news .news-export__panels .accordion__panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-news .news-export__panels .accordion__panel a {
  color: var(--cobalt-mid);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收藏 ---------- */
.page-news .news-metrics {
  list-style: none;
  margin: 2rem 0 0;
  padding: 1.25rem 0;
  border-top: 1px solid var(--gold-faint);
  border-bottom: 1px solid var(--gold-faint);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1.5rem;
}

.page-news .news-metrics .metric__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1.1;
  color: var(--cobalt-deep);
}

.page-news .news-metrics .metric__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-news .news-keep {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-news .news-keep__step {
  position: relative;
  padding: 1.1rem 1.1rem 1.2rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--hair);
}

.page-news .news-keep__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--saffron);
}

.page-news .news-keep__title {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--cobalt-deep);
}

.page-news .news-keep__desc {
  margin: 0.55rem 0 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 专题合集 ---------- */
.page-news .news-specials {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0 0 0.85rem;
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-special {
  flex: 0 0 clamp(15rem, 66vw, 18.5rem);
  scroll-snap-align: start;
  padding: 1.35rem 1.15rem 1.5rem;
  color: var(--on-deep);
  border: 1px solid var(--gold-faint);
  border-top: 2px solid var(--gold);
  background-color: var(--cobalt-deep);
  background-image:
    radial-gradient(circle at 82% 12%, rgba(46, 123, 196, 0.6), transparent 62%),
    repeating-linear-gradient(45deg, rgba(247, 242, 232, 0.05) 0 9px, transparent 9px 18px);
}

.page-news .news-special__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news .news-special__title {
  margin: 0.7rem 0 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--on-deep);
}

.page-news .news-special__desc {
  margin: 0.6rem 0 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--on-deep-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 40rem) {
  .page-news .news-clusters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-keep {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 48rem) {
  .page-news .news-picks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
    align-items: start;
  }

  .page-news .news-pick:nth-child(2) {
    margin-top: 1.75rem;
  }

  .page-news .news-pick:nth-child(3) {
    margin-top: 0.85rem;
  }

  .page-news .news-cadence {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .news-entry {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
    column-gap: 2rem;
  }
}

@media (min-width: 60rem) {
  .page-news .news-shell {
    grid-template-columns: var(--nw-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .index-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    background: none;
    padding-bottom: 0;
    max-height: calc(100vh - var(--header-h) - 3rem);
    overflow-y: auto;
  }

  .page-news .index-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 1px solid var(--gold-faint);
  }

  .page-news .index-rail__link {
    border: 0;
    background: none;
    border-radius: 0;
    padding: 0.6rem 0.5rem 0.6rem 1rem;
    position: relative;
    font-size: 0.875rem;
  }

  .page-news .index-rail__link::before {
    content: "";
    position: absolute;
    left: -3.5px;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: transparent;
    transform: translateY(-50%);
    transition: background var(--dur) var(--ease);
  }

  .page-news .index-rail__link:hover {
    color: var(--cobalt-mid);
  }

  .page-news .index-rail__link.is-current {
    color: var(--cobalt-deep);
    font-weight: 600;
  }

  .page-news .index-rail__link.is-current::before {
    background: var(--saffron);
  }

  .page-news .news-clusters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .news-figure--band img {
    max-height: 26rem;
  }

  .page-news .news-masthead__row {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  }
}

@media (min-width: 62rem) {
  .page-news .news-export {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(1.5rem, 3vw, 2.75rem);
    align-items: start;
  }

  .page-news .news-export__panels {
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-cluster,
  .page-news .news-pick,
  .page-news .news-entry,
  .page-news .index-rail__link::before {
    transition: none;
  }

  .page-news .news-cluster:hover {
    transform: none;
  }
}