.page-news {
  --news-gap: 24px;
  --news-rule: 1px solid var(--yb-line);
  background: var(--yb-cream);
  color: var(--yb-graphite);
}

.page-news * {
  box-sizing: border-box;
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumbbar {
  padding: 20px 0 16px;
  background: var(--yb-cream);
  border-bottom: 1px solid var(--yb-line);
}

.page-news .news-crumbbar .yb-crumbs {
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--yb-fog);
}

.page-news .news-crumbbar .yb-crumbs a {
  color: var(--yb-fog);
  text-decoration: none;
}

.page-news .news-crumbbar .yb-crumbs a:hover {
  color: var(--yb-coral);
  text-decoration: underline;
}

.page-news .news-crumbbar .yb-crumbs__current {
  color: var(--yb-ink);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: 52px 0 60px;
  background: var(--yb-ink);
  color: var(--yb-cream);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--yb-line-light-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--yb-line-light-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-news .news-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-news .news-eyebrow {
  margin: 0 0 10px;
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yb-gold);
}

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

.page-news .news-hero__title {
  margin: 0 0 18px;
  font-size: clamp(28px, 6vw, 44px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--yb-cream);
}

.page-news .news-hero__lead {
  margin: 0 0 26px;
  max-width: 35em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 244, 236, .8);
}

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

.page-news .news-hero .yb-btn--ghost {
  color: var(--yb-cream);
  border-color: var(--yb-line-light);
}

.page-news .news-hero .yb-btn--ghost:hover {
  border-color: var(--yb-gold);
  color: var(--yb-gold);
}

.page-news .news-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--yb-line-light);
  border: 1px solid var(--yb-line-light);
}

.page-news .news-stats__item {
  padding: 16px 14px;
  background: var(--yb-ink);
}

.page-news .news-stats__num {
  display: block;
  font-family: var(--yb-mono);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--yb-gold);
}

.page-news .news-stats__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .05em;
  color: rgba(247, 244, 236, .66);
}

/* ---------- 筛选条 ---------- */
.page-news .news-filter {
  position: sticky;
  top: var(--yb-header-h);
  z-index: 20;
  padding: 14px 0 16px;
  background: var(--yb-mist);
  border-bottom: 1px solid var(--yb-line);
}

.page-news .news-filter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  margin-bottom: 10px;
}

.page-news .news-filter__title {
  margin: 0;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .08em;
  color: var(--yb-ink);
}

.page-news .news-filter__count {
  margin: 0;
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--yb-cyan);
}

.page-news .news-filter__body {
  display: grid;
  gap: 0;
}

.page-news .news-filter__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 8px 0;
  border-top: 1px dashed var(--yb-line);
}

.page-news .news-filter__row:first-child {
  border-top: 0;
  padding-top: 2px;
}

.page-news .news-filter__key {
  flex: 0 0 auto;
  width: 4.5em;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--yb-fog);
}

.page-news .news-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-filter .yb-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--yb-graphite);
  background: var(--yb-cream);
  border: 1px solid var(--yb-line-strong);
  border-radius: var(--yb-pill-radius);
  text-decoration: none;
  transition: border-color .18s var(--yb-ease), color .18s var(--yb-ease), background .18s var(--yb-ease);
}

.page-news .news-filter .yb-pill:hover,
.page-news .news-filter .yb-pill:focus-visible {
  color: var(--yb-coral);
  border-color: var(--yb-coral);
  background: #fff;
}

.page-news .news-filter .yb-pill:focus-visible {
  outline: 2px solid var(--yb-coral);
  outline-offset: 2px;
}

.page-news .news-pill__n {
  font-family: var(--yb-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--yb-cyan);
}

.page-news .news-pill--more {
  border-style: dashed;
  color: var(--yb-green-mid);
}

/* ---------- 卡片带 ---------- */
.page-news .news-belt {
  padding: 54px 0 56px;
  background: var(--yb-cream);
}

.page-news .news-belt__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px 20px;
  margin-bottom: 22px;
}

.page-news .news-belt__title {
  margin: 0;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--yb-ink);
}

.page-news .news-belt__hint {
  margin: 0;
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--yb-fog);
}

.page-news .news-belt__track {
  display: flex;
  gap: 16px;
  padding: 4px 20px 20px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scroll-padding-left: 20px;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-belt__track::-webkit-scrollbar {
  height: 6px;
}

.page-news .news-belt__track::-webkit-scrollbar-thumb {
  background: var(--yb-line-strong);
  border-radius: 3px;
}

.page-news .news-card {
  flex: 0 0 286px;
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
  background: var(--yb-mist);
  border-top: 3px solid var(--news-accent, var(--yb-gold));
}

.page-news .news-card--query { --news-accent: var(--yb-gold); }
.page-news .news-card--travel { --news-accent: var(--yb-cyan); }
.page-news .news-card--home { --news-accent: var(--yb-green-mid); }
.page-news .news-card--study { --news-accent: var(--yb-coral); }
.page-news .news-card--device { --news-accent: var(--yb-graphite); }

.page-news .news-card__media {
  overflow: hidden;
  background: var(--yb-gold-light);
}

.page-news .news-card__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-news .news-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 9px;
  padding: 16px 18px 20px;
}

.page-news .news-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .news-tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .04em;
  border-radius: var(--yb-pill-radius);
  color: var(--yb-cream);
  background: var(--news-accent, var(--yb-gold));
}

.page-news .news-card__idx {
  font-family: var(--yb-mono);
  font-size: 11.5px;
  color: var(--yb-fog);
}

.page-news .news-card__title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--yb-ink);
}

.page-news .news-card__result {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--yb-graphite);
}

.page-news .news-card__reuse {
  margin: 0;
  margin-top: auto;
  padding-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--yb-fog);
  border-top: 1px dashed var(--yb-line);
}

/* ---------- 按场景浏览 ---------- */
.page-news .news-browse {
  padding-bottom: 10px;
  background: var(--yb-cream);
}

.page-news .news-browse__head {
  max-width: 44em;
  padding: 0 0 26px;
}

.page-news .news-browse__title {
  margin: 0 0 12px;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--yb-ink);
}

.page-news .news-browse__intro {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--yb-graphite);
}

.page-news .news-group {
  scroll-margin-top: calc(var(--yb-header-h) + 150px);
}

.page-news .news-group--query { --news-accent: var(--yb-gold); }
.page-news .news-group--travel { --news-accent: var(--yb-cyan); }
.page-news .news-group--home { --news-accent: var(--yb-green-mid); }
.page-news .news-group--study { --news-accent: var(--yb-coral); }
.page-news .news-group--device { --news-accent: var(--yb-graphite); }

.page-news .news-group__band {
  background: var(--yb-mist);
  border-top: 1px solid var(--yb-line);
  border-bottom: 1px solid var(--yb-line);
}

.page-news .news-group__bandinner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding-top: 20px;
  padding-bottom: 22px;
}

.page-news .news-group__meta {
  border-left: 3px solid var(--news-accent, var(--yb-gold));
  padding-left: 14px;
}

.page-news .news-group__name {
  margin: 0 0 5px;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--yb-ink);
}

.page-news .news-group__count {
  margin: 0 0 6px;
  font-family: var(--yb-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  color: var(--yb-cyan);
}

.page-news .news-group__desc {
  margin: 0;
  max-width: 34em;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--yb-graphite);
}

.page-news .news-group__fig {
  margin: 0;
  background: var(--yb-gold-light);
}

.page-news .news-group__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-news .news-items {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--yb-line);
  transition: background .18s var(--yb-ease);
}

.page-news .news-item:hover {
  background: rgba(200, 149, 47, .05);
}

.page-news .news-item__no {
  font-family: var(--yb-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--news-accent, var(--yb-gold));
}

.page-news .news-item__body {
  min-width: 0;
}

.page-news .news-item__title {
  margin: 0 0 7px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--yb-ink);
}

.page-news .news-item__concl {
  margin: 0 0 9px;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yb-graphite);
}

.page-news .news-item__reuse {
  margin: 0;
  max-width: 40em;
  font-size: 13px;
  line-height: 1.75;
  color: var(--yb-fog);
}

.page-news .news-item__reuse span {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--yb-ink);
  background: var(--yb-gold-light);
  border-radius: var(--yb-pill-radius);
}

.page-news .news-item__tags {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-item__tags .yb-tag {
  padding: 2px 8px;
  font-size: 11.5px;
  border-radius: var(--yb-pill-radius);
  background: var(--yb-gold-light);
  color: var(--yb-ink);
}

.page-news .news-item__tags .yb-tag--ink {
  background: transparent;
  border: 1px solid var(--yb-line-strong);
  color: var(--yb-fog);
}

/* ---------- 专题索引 ---------- */
.page-news .news-series {
  margin-top: 44px;
  padding: 56px 0 60px;
  background: var(--yb-ink);
  color: var(--yb-cream);
}

.page-news .news-series__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-news .news-series__title {
  margin: 0 0 12px;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--yb-cream);
}

.page-news .news-series__desc {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(247, 244, 236, .76);
}

.page-news .news-series__fig {
  margin: 24px 0 0;
}

.page-news .news-series__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--yb-line-light);
}

.page-news .news-serial {
  border-top: 1px solid var(--yb-line-light);
}

.page-news .news-serial:last-child {
  border-bottom: 1px solid var(--yb-line-light);
}

.page-news .news-serial__sum {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-serial__sum:focus-visible {
  outline: 2px solid var(--yb-coral);
  outline-offset: 2px;
}

.page-news .news-serial__sum::after {
  content: "+";
  margin-left: 14px;
  font-family: var(--yb-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--yb-gold);
}

.page-news .news-serial[open] .news-serial__sum::after {
  content: "−";
}

.page-news .news-serial__no {
  font-family: var(--yb-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--yb-gold);
}

.page-news .news-serial__name {
  flex: 1;
  min-width: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--yb-cream);
}

.page-news .news-serial__sum:hover .news-serial__name {
  color: var(--yb-gold);
}

.page-news .news-serial__count {
  font-family: var(--yb-mono);
  font-size: 12px;
  color: rgba(247, 244, 236, .52);
}

.page-news .news-serial__issues {
  list-style: none;
  margin: 0;
  padding: 0 0 18px;
  display: grid;
  gap: 9px;
}

.page-news .news-serial__issues li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--yb-line-light);
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(247, 244, 236, .78);
}

.page-news .news-serial__issues span {
  font-family: var(--yb-mono);
  font-size: 12px;
  color: var(--yb-gold);
}

/* ---------- 整理周报 ---------- */
.page-news .news-digest {
  padding: 56px 0;
  background: var(--yb-cream);
}

.page-news .news-digest__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-news .news-digest__title {
  margin: 0 0 20px;
  font-size: clamp(22px, 4vw, 28px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--yb-ink);
}

.page-news .news-issue {
  padding: 20px 20px 22px;
  background: var(--yb-mist);
  border-left: 3px solid var(--yb-gold);
}

.page-news .news-issue__no {
  margin: 0 0 12px;
  font-family: var(--yb-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--yb-cyan);
}

.page-news .news-issue__list {
  margin: 0 0 14px;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--yb-graphite);
}

.page-news .news-issue__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--yb-fog);
}

.page-news .news-digest__subtitle {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--yb-ink);
}

.page-news .news-cadence {
  margin: 0;
  border-top: 1px solid var(--yb-line);
}

.page-news .news-cadence > div {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--yb-line);
}

.page-news .news-cadence dt {
  font-family: var(--yb-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--yb-gold);
}

.page-news .news-cadence dd {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--yb-graphite);
}

.page-news .news-digest__link {
  margin: 20px 0 0;
}

/* ---------- 结尾提示条 ---------- */
.page-news .news-next {
  padding: 30px 0;
  background: var(--yb-mist);
  border-top: 1px solid var(--yb-line);
}

.page-news .news-next__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 26px;
}

.page-news .news-next__text {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--yb-ink);
}

.page-news .news-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .news-next .yb-btn--ghost {
  color: var(--yb-green-mid);
  border-color: var(--yb-line-strong);
}

.page-news .news-next .yb-btn--ghost:hover {
  color: var(--yb-coral);
  border-color: var(--yb-coral);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-item {
    grid-template-columns: 52px minmax(0, 1fr) 140px;
    gap: 12px 24px;
    align-items: start;
  }

  .page-news .news-item__tags {
    grid-column: 3;
    justify-content: flex-end;
  }

  .page-news .news-card {
    flex-basis: 320px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding: 64px 0 76px;
  }

  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-news .news-hero__lead {
    font-size: 16px;
  }

  .page-news .news-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-group__bandinner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 40px;
    align-items: center;
    padding-top: 24px;
    padding-bottom: 26px;
  }

  .page-news .news-group__bandinner:not(.news-group__bandinner--fig) {
    grid-template-columns: minmax(0, 7fr);
  }

  .page-news .news-series__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-news .news-digest__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1264px) {
  .page-news .news-belt__track {
    padding-left: calc((100vw - var(--yb-w)) / 2);
    padding-right: calc((100vw - var(--yb-w)) / 2);
    scroll-padding-left: calc((100vw - var(--yb-w)) / 2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-filter .yb-pill {
    transition: none;
  }
}