.page-news {
  --news-radius: 16px;
  --news-hairline: rgba(138, 148, 166, .22);
  --news-hairline-warm: rgba(255, 122, 26, .38);
  background: var(--bb-ink);
  color: var(--bb-text);
  padding-bottom: 24px;
}

.page-news .news-hero {
  padding-top: 22px;
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-news .news-hero__title {
  margin: 16px 0 0;
  font-family: var(--bb-font-head);
  font-weight: 900;
  font-size: clamp(32px, 8.6vw, 62px);
  line-height: 1.03;
  letter-spacing: -.015em;
  transform: skewX(-3deg);
  transform-origin: left bottom;
}

.page-news .news-hero__lead {
  margin: 16px 0 0;
  max-width: 56ch;
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-news .news-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 22px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--news-hairline);
  font-size: 14px;
  color: var(--bb-text-2);
}

.page-news .news-hero__facts .bb-mono {
  display: inline-block;
  margin-right: 4px;
  font-size: 19px;
  color: var(--bb-cyan);
}

.page-news .news-hero__media {
  margin: 0;
  border-radius: var(--bb-radius-lg);
}

/* ---- 时间线导航 + 卡片流 ---- */

.page-news .news-stream {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-news .news-index {
  align-self: start;
}

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

.page-news .news-index__list {
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-news .news-index__list a {
  display: block;
  padding: 7px 14px;
  border: 1px solid var(--news-hairline);
  border-radius: 999px;
  color: var(--bb-text-2);
  font-family: var(--bb-font-mono);
  font-size: 12px;
  white-space: nowrap;
  text-decoration: none;
  transition: color .25s var(--bb-ease), background .25s var(--bb-ease), border-color .25s var(--bb-ease);
}

.page-news .news-index__list a:hover,
.page-news .news-index__list a.is-current {
  color: var(--bb-ink);
  background: var(--bb-cyan);
  border-color: var(--bb-cyan);
}

.page-news .news-cards__head {
  margin-bottom: 20px;
}

.page-news .news-cards__title {
  margin: 12px 0 0;
}

.page-news .news-cards__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-news .news-card {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--bb-panel);
  border: 1px solid var(--news-hairline);
  border-radius: var(--news-radius);
  overflow: hidden;
  transition: background .3s var(--bb-ease), border-color .3s var(--bb-ease), transform .3s var(--bb-ease);
}

.page-news .news-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 999px;
  background: var(--bb-orange);
}

.page-news .news-card--cyan::before {
  background: var(--bb-cyan);
}

.page-news .news-card--violet::before {
  background: linear-gradient(180deg, var(--bb-violet), var(--bb-magenta));
}

.page-news .news-card:hover,
.page-news .news-card:focus-within {
  background: var(--bb-panel-2);
  border-color: var(--bb-line-strong);
  transform: translateY(-2px);
}

.page-news .news-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .news-card__time {
  margin-left: auto;
  font-size: 12px;
  color: var(--bb-steel);
}

.page-news .news-card__title {
  margin: 12px 0 0;
  font-family: var(--bb-font-head);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.34;
  color: var(--bb-text);
}

.page-news .news-card__text {
  margin: 10px 0 0;
  max-height: 3.4em;
  overflow: hidden;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--bb-text-2);
  transition: max-height .45s var(--bb-ease), color .3s var(--bb-ease);
}

.page-news .news-card:hover .news-card__text,
.page-news .news-card:focus-within .news-card__text {
  max-height: 12em;
  color: var(--bb-text);
}

.page-news .news-cards__foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--news-hairline);
  font-size: 14px;
  color: var(--bb-text-2);
}

.page-news .news-cards__link {
  color: var(--bb-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--bb-line-strong);
}

.page-news .news-cards__link:hover {
  color: var(--bb-text);
}

/* ---- 数据复盘 ---- */

.page-news .news-review {
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(34, 224, 214, .09), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(162, 56, 255, .1), transparent 60%),
    var(--bb-ink);
}

.page-news .news-review__head {
  max-width: 62ch;
}

.page-news .news-review__title {
  margin: 12px 0 0;
}

.page-news .news-review__lead {
  margin: 14px 0 0;
}

.page-news .news-review__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 26px;
}

.page-news .news-review__media {
  margin: 0;
  border-radius: var(--bb-radius-lg);
}

.page-news .news-review__list {
  display: flex;
  flex-direction: column;
}

.page-news .news-review__item {
  padding: 18px 0;
  border-top: 1px solid var(--news-hairline);
}

.page-news .news-review__item:last-child {
  border-bottom: 1px solid var(--news-hairline);
}

.page-news .news-review__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--bb-font-mono);
  font-size: 12px;
  color: var(--bb-steel);
}

.page-news .news-review__item-title {
  margin: 10px 0 0;
  font-family: var(--bb-font-head);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.38;
  color: var(--bb-text);
}

.page-news .news-review__item-text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--bb-text-2);
}

.page-news .news-review__value {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  border: 1px solid var(--bb-line-strong);
  border-radius: 999px;
  font-family: var(--bb-font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--bb-cyan);
}

/* ---- 专题系列横向带 ---- */

.page-news .news-series-section {
  background: var(--bb-ink);
}

.page-news .news-series__head {
  max-width: 58ch;
}

.page-news .news-series__title {
  margin: 12px 0 0;
}

.page-news .news-series__lead {
  margin: 14px 0 0;
}

.page-news .news-series {
  margin-top: 24px;
}

.page-news .news-series__card {
  flex: 0 0 auto;
  width: clamp(224px, 66vw, 296px);
  background: var(--bb-panel);
  border: 1px solid var(--news-hairline);
  border-radius: var(--news-radius);
  overflow: hidden;
  scroll-snap-align: start;
  transition: border-color .3s var(--bb-ease), transform .3s var(--bb-ease);
}

.page-news .news-series__card:hover {
  border-color: var(--bb-line-violet);
  transform: translateY(-3px);
}

.page-news .news-series__media {
  margin: 0;
  border-radius: 0;
}

.page-news .news-series__body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.page-news .news-series__card-title {
  margin: 0;
  font-family: var(--bb-font-head);
  font-size: 18px;
  font-weight: 800;
  color: var(--bb-text);
}

.page-news .news-series__card-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--bb-text-2);
}

.page-news .news-series__count {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--bb-orange);
  letter-spacing: .02em;
}

/* ---- 版本迭代与权益 ---- */

.page-news .news-release__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-news .news-release__title {
  margin: 12px 0 0;
}

.page-news .news-release__copy .bb-lead {
  margin: 14px 0 0;
}

.page-news .news-release__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news .news-release__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  padding: 12px 14px;
  background: var(--bb-panel);
  border: 1px solid var(--news-hairline);
  border-left: 3px solid var(--bb-cyan);
  border-radius: 0 var(--news-radius) var(--news-radius) 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--bb-text-2);
}

.page-news .news-release__ver {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--bb-cyan);
  letter-spacing: .02em;
}

.page-news .news-release__rights {
  margin-top: 22px;
}

.page-news .news-release__rights-label {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--bb-steel);
}

.page-news .news-release__rights-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-release__cta {
  margin-top: 24px;
}

.page-news .news-release__media {
  margin: 0;
  border-radius: var(--bb-radius);
}

/* ---- 标签检索 ---- */

.page-news .news-tags {
  background:
    linear-gradient(180deg, rgba(162, 56, 255, .08), transparent 40%),
    var(--bb-ink);
}

.page-news .news-tags__head {
  max-width: 58ch;
}

.page-news .news-tags__title {
  margin: 12px 0 0;
}

.page-news .news-tags__head .bb-lead {
  margin: 14px 0 0;
}

.page-news .news-tags__drawers {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}

.page-news .news-tags__group {
  padding: 16px;
  background: var(--bb-panel);
  border: 1px solid var(--news-hairline);
  border-radius: var(--news-radius);
  border-top: 3px solid var(--bb-violet);
}

.page-news .news-tags__group:nth-child(1),
.page-news .news-tags__group:nth-child(2) {
  border-top-color: var(--bb-orange);
}

.page-news .news-tags__group .bb-label {
  margin: 0 0 12px;
}

.page-news .news-tags__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-news .news-tags__item {
  display: block;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(138, 148, 166, .18);
  color: var(--bb-text-2);
  font-size: 14.5px;
  text-decoration: none;
  transition: color .22s var(--bb-ease), padding-left .22s var(--bb-ease);
}

.page-news .news-tags__item::before {
  content: "／";
  margin-right: 6px;
  color: var(--bb-steel);
  font-family: var(--bb-font-mono);
}

.page-news .news-tags__item:hover {
  color: var(--bb-cyan);
  padding-left: 6px;
}

.page-news .news-tags__note {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--bb-text-2);
}

.page-news .news-tags__link {
  color: var(--bb-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--bb-line-strong);
}

.page-news .news-tags__link:hover {
  color: var(--bb-text);
}

/* ---- 更新节奏 ---- */

.page-news .news-rhythm__head {
  max-width: 56ch;
}

.page-news .news-rhythm__title {
  margin: 12px 0 0;
}

.page-news .news-rhythm__head .bb-lead {
  margin: 14px 0 0;
}

.page-news .news-rhythm__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-rhythm__stat {
  padding: 18px 16px;
  border-radius: var(--news-radius);
  background: var(--bb-panel);
  border: 1px solid var(--news-hairline);
  border-left: 3px solid var(--bb-cyan);
}

.page-news .news-rhythm__stat:nth-child(2n) {
  border-left-color: var(--bb-orange);
}

.page-news .news-rhythm__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--news-hairline);
}

.page-news .news-rhythm__foot-text {
  margin: 0;
  flex: 1 1 240px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--bb-text-2);
}

.page-news .bb-totop {
  margin-top: 8px;
}

/* ---- 断点 ---- */

@media (min-width: 720px) {
  .page-news .news-cards__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
  }

  .page-news .news-cards__grid > .news-card:nth-child(even) {
    margin-top: 30px;
  }

  .page-news .news-rhythm__grid {
    gap: 14px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding-top: 30px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: 62fr 38fr;
    gap: 40px;
    align-items: center;
  }

  .page-news .news-stream {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 44px;
  }

  .page-news .news-index {
    position: sticky;
    top: 104px;
  }

  .page-news .news-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }

  .page-news .news-index__list a {
    border: 0;
    border-left: 2px solid var(--news-hairline);
    border-radius: 0;
    background: none;
    padding: 8px 0 8px 14px;
    font-size: 12.5px;
    color: var(--bb-text-2);
    transition: border-color .25s var(--bb-ease), color .25s var(--bb-ease);
  }

  .page-news .news-index__list a:hover,
  .page-news .news-index__list a.is-current {
    background: none;
    border-left-color: var(--bb-cyan);
    color: var(--bb-cyan);
  }

  .page-news .news-review__grid {
    grid-template-columns: 38fr 62fr;
    gap: 36px;
    align-items: start;
  }

  .page-news .news-release__grid {
    grid-template-columns: 60fr 40fr;
    gap: 44px;
    align-items: center;
  }

  .page-news .news-tags__drawers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 1024px) {
  .page-news .news-rhythm__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .news-card__text,
  .page-news .news-series__card,
  .page-news .news-tags__item,
  .page-news .news-index__list a {
    transition: none;
  }

  .page-news .news-card:hover,
  .page-news .news-card:focus-within,
  .page-news .news-series__card:hover {
    transform: none;
  }
}