.page-news {
  --news-rule: rgba(11, 31, 51, .12);
  --news-card: #FFFFFF;
  --news-gap: 24px;
  font-family: var(--bt-sans);
  color: var(--bt-black);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

.page-news :focus-visible {
  outline: 2px solid var(--bt-gold);
  outline-offset: 3px;
}

.page-news .bt-mono {
  font-family: var(--bt-mono);
  letter-spacing: .04em;
}

/* ---------- 面包屑 / 版本带 ---------- */
.page-news .news-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 0 12px;
  border-bottom: 1px solid var(--news-rule);
}

.page-news .news-topbar__ver {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 12px;
  color: var(--bt-mist);
}

.page-news .news-topbar__sep {
  color: var(--bt-silver);
}

.page-news .bt-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.page-news .bt-crumbs__item a {
  color: var(--bt-mist);
  text-decoration: none;
}

.page-news .bt-crumbs__item a:hover {
  color: var(--bt-gold-deep);
}

.page-news .bt-crumbs__item span[aria-current="page"] {
  color: var(--bt-ink);
  font-weight: 600;
}

.page-news .bt-crumbs__sep {
  color: var(--bt-silver);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background: var(--bt-ink);
  color: var(--bt-paper);
  padding: 44px 0 52px;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    112deg,
    rgba(245, 242, 234, .05) 0 1px,
    transparent 1px 34px
  );
  pointer-events: none;
}

.page-news .news-hero__grid {
  position: relative;
  display: grid;
  gap: 34px;
}

.page-news .news-hero__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--bt-gold-soft);
  text-transform: none;
}

.page-news .news-hero__title {
  margin: 0 0 18px;
  font-family: var(--bt-serif);
  font-weight: 700;
  font-size: clamp(2.1rem, 7vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: #fff;
}

.page-news .news-hero__lead {
  max-width: 62ch;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 242, 234, .84);
}

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

.page-news .news-hero__aside {
  padding: 22px 20px 18px;
  background: rgba(245, 242, 234, .06);
  border-left: 2px solid var(--bt-gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-news .news-hero__asideTitle {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--bt-mist);
}

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

.page-news .news-index__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(245, 242, 234, .16);
}

.page-news .news-index__row:last-child {
  border-bottom: 0;
}

.page-news .news-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: rgba(245, 242, 234, .9);
  transition: color var(--bt-dur) var(--bt-ease);
}

.page-news .news-index__link:hover {
  color: var(--bt-gold-soft);
}

.page-news .news-index__num {
  font-size: 12px;
  color: var(--bt-gold);
}

.page-news .news-index__name {
  font-size: 15px;
}

.page-news .news-index__count {
  font-size: 12px;
  color: var(--bt-mist);
  white-space: nowrap;
}

/* ---------- 按钮（页面级细化） ---------- */
.page-news .bt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--bt-dur) var(--bt-ease),
    color var(--bt-dur) var(--bt-ease),
    border-color var(--bt-dur) var(--bt-ease),
    transform var(--bt-dur) var(--bt-ease);
}

.page-news .bt-btn--gold {
  background: var(--bt-gold);
  color: #fff;
}

.page-news .bt-btn--gold:hover {
  background: var(--bt-gold-deep);
  transform: translateY(-2px);
}

.page-news .bt-btn--ghost {
  background: transparent;
  border-color: var(--bt-ink);
  color: var(--bt-ink);
}

.page-news .bt-btn--ghost:hover {
  background: rgba(11, 31, 51, .06);
  transform: translateY(-2px);
}

.page-news .news-hero .bt-btn--ghost {
  border-color: rgba(245, 242, 234, .5);
  color: var(--bt-paper);
}

.page-news .news-hero .bt-btn--ghost:hover {
  border-color: var(--bt-gold);
  color: var(--bt-gold-soft);
  background: rgba(184, 115, 51, .14);
}

.page-news .bt-btn--quiet {
  min-height: 0;
  padding: 0 0 3px;
  border: 0;
  border-bottom: 1px solid currentColor;
  color: var(--bt-gold-deep);
  font-size: 14px;
  font-weight: 600;
  background: transparent;
}

.page-news .bt-btn--quiet:hover {
  color: var(--bt-ink);
  transform: none;
}

.page-news .news-hero .bt-btn--quiet {
  color: var(--bt-gold-soft);
}

.page-news .news-hero .bt-btn--quiet:hover {
  color: #fff;
}

/* ---------- 通用区块骨架 ---------- */
.page-news .news-block {
  padding: 52px 0 44px;
  border-top: 1px solid var(--news-rule);
}

.page-news .news-block__head {
  max-width: 66ch;
  margin-bottom: 34px;
}

.page-news .news-block__index {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--bt-mist);
  display: inline-block;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--bt-gold);
}

.page-news .news-block__title {
  margin: 0 0 14px;
  font-family: var(--bt-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--bt-ink);
}

.page-news .news-block__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  color: rgba(16, 20, 24, .78);
}

.page-news .bt-tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--bt-mist);
  border: 1px solid var(--bt-silver);
  background: transparent;
}

.page-news .bt-tag--gold {
  color: var(--bt-gold-deep);
  border-color: var(--bt-gold-soft);
  background: rgba(225, 199, 163, .32);
}

/* ---------- 图片框 ---------- */
.page-news .bt-figure {
  margin: 0;
}

.page-news .bt-figure__frame {
  position: relative;
  overflow: hidden;
  background: var(--bt-mist-soft);
  border: 1px solid var(--bt-silver);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-news .bt-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .bt-figure__caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--bt-mist);
  font-family: var(--bt-mono);
  letter-spacing: .02em;
}

/* ---------- 01 当季头条 ---------- */
.page-news .news-lead {
  display: grid;
  gap: 30px;
}

.page-news .news-lead__feature {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-news .news-lead__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
}

.page-news .news-lead__time {
  font-size: 12px;
  color: var(--bt-mist);
}

.page-news .news-lead__title {
  margin: 0 0 12px;
  font-family: var(--bt-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 4.4vw, 1.75rem);
  line-height: 1.34;
  color: var(--bt-ink);
}

.page-news .news-lead__text {
  margin: 0 0 16px;
  max-width: 58ch;
  font-size: 15.5px;
  color: rgba(16, 20, 24, .78);
}

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

.page-news .news-lead__sideItem {
  padding: 18px 0 18px 18px;
  border-left: 2px solid var(--bt-mist);
  transition: border-color var(--bt-dur) var(--bt-ease),
    background-color var(--bt-dur) var(--bt-ease);
}

.page-news .news-lead__sideItem:hover {
  border-left-color: var(--bt-gold);
  background: rgba(225, 199, 163, .14);
}

.page-news .news-lead__sideMeta {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--bt-mist);
}

.page-news .news-lead__sideTitle {
  margin: 0 0 8px;
  font-family: var(--bt-serif);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.42;
  color: var(--bt-ink);
}

.page-news .news-lead__sideText {
  margin: 0;
  font-size: 14.5px;
  color: rgba(16, 20, 24, .74);
}

/* ---------- 02 栏目列表 ---------- */
.page-news .news-columns {
  display: grid;
  gap: 32px;
}

.page-news .news-rail__title {
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--bt-mist);
}

.page-news .news-rail__list {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--news-rule);
}

.page-news .news-rail__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 11px 12px 11px 0;
  font-size: 15px;
  color: rgba(16, 20, 24, .82);
  text-decoration: none;
  border-bottom: 1px solid var(--news-rule);
  border-left: 3px solid transparent;
  padding-left: 12px;
  transition: color var(--bt-dur) var(--bt-ease),
    border-color var(--bt-dur) var(--bt-ease),
    background-color var(--bt-dur) var(--bt-ease);
}

.page-news .news-rail__link:hover {
  color: var(--bt-gold-deep);
  background: rgba(111, 143, 138, .1);
}

.page-news .news-rail__link.is-active {
  border-left-color: var(--bt-gold);
  color: var(--bt-ink);
  font-weight: 600;
  background: rgba(184, 115, 51, .08);
}

.page-news .news-rail__n {
  font-size: 12px;
  color: var(--bt-mist);
}

.page-news .news-tagcloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  font-size: 13px;
  color: var(--bt-mist);
  text-decoration: none;
  border: 1px solid var(--bt-silver);
  background: transparent;
  transition: color var(--bt-dur) var(--bt-ease),
    border-color var(--bt-dur) var(--bt-ease),
    background-color var(--bt-dur) var(--bt-ease);
}

.page-news .news-chip:hover {
  color: var(--bt-gold-deep);
  border-color: var(--bt-gold-soft);
  background: rgba(225, 199, 163, .24);
}

.page-news .news-chip__n {
  font-size: 11px;
  color: var(--bt-silver);
  transition: color var(--bt-dur) var(--bt-ease);
}

.page-news .news-chip:hover .news-chip__n {
  color: var(--bt-gold);
}

.page-news .news-stream__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .news-item {
  display: grid;
  gap: 6px;
  padding: 20px 20px 22px;
  background: var(--news-card);
  border: 1px solid var(--bt-silver);
  border-left: 4px solid var(--bt-mist);
  transition: border-color var(--bt-dur) var(--bt-ease),
    box-shadow var(--bt-dur) var(--bt-ease),
    transform var(--bt-dur) var(--bt-ease);
}

.page-news .news-item:hover {
  border-left-color: var(--bt-gold);
  box-shadow: var(--bt-shadow);
  transform: translateY(-2px);
}

.page-news .news-item__time {
  margin: 0;
  font-size: 12px;
  color: var(--bt-mist);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-family: var(--bt-serif);
  font-weight: 600;
  font-size: 1.1rem;
  line-height: 1.42;
  color: var(--bt-ink);
  transition: color var(--bt-dur) var(--bt-ease);
}

.page-news .news-item:hover .news-item__title {
  color: var(--bt-gold-deep);
}

.page-news .news-item__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  color: rgba(16, 20, 24, .74);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.page-news .news-stream__foot {
  margin: 24px 0 0;
  padding: 16px 18px;
  font-size: 14.5px;
  color: rgba(16, 20, 24, .78);
  background: var(--bt-mist-soft);
  border-left: 3px solid var(--bt-mist);
}

.page-news .news-stream__foot a {
  color: var(--bt-gold-deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-news .news-stream__foot a:hover {
  color: var(--bt-ink);
}

/* ---------- 03 资料库更新 ---------- */
.page-news .news-split {
  display: grid;
  gap: 32px;
}

.page-news .news-split__body .news-block__lead {
  margin-bottom: 26px;
}

.page-news .news-log {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--news-rule);
}

.page-news .news-log__item {
  padding: 20px 0 20px 20px;
  border-bottom: 1px solid var(--news-rule);
  border-left: 2px solid transparent;
  transition: border-color var(--bt-dur) var(--bt-ease),
    background-color var(--bt-dur) var(--bt-ease);
}

.page-news .news-log__item:hover {
  border-left-color: var(--bt-gold);
  background: rgba(184, 115, 51, .06);
}

.page-news .news-log__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
}

.page-news .news-log__tag {
  font-size: 11.5px;
  padding: 2px 8px;
  color: var(--bt-ink);
  background: var(--bt-mist-soft);
  border: 1px solid rgba(111, 143, 138, .3);
}

.page-news .news-log__when {
  font-size: 11.5px;
  color: var(--bt-silver);
}

.page-news .news-log__title {
  margin: 0 0 8px;
  font-family: var(--bt-serif);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.45;
  color: var(--bt-ink);
}

.page-news .news-log__text {
  margin: 0;
  font-size: 14.5px;
  color: rgba(16, 20, 24, .74);
}

.page-news .news-split__hint {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--bt-gold-soft);
  font-size: 14px;
  color: var(--bt-mist);
}

.page-news .news-split__hint a {
  color: var(--bt-gold-deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-news .news-split__hint a:hover {
  color: var(--bt-ink);
}

/* ---------- 04 公告与版本 ---------- */
.page-news .news-notes {
  display: grid;
  gap: 30px;
}

.page-news .news-notes__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .news-note {
  padding: 18px 20px 20px;
  background: var(--news-card);
  border: 1px solid var(--bt-silver);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: border-color var(--bt-dur) var(--bt-ease),
    transform var(--bt-dur) var(--bt-ease);
}

.page-news .news-note:hover {
  border-color: var(--bt-gold-soft);
  transform: translateY(-2px);
}

.page-news .news-note__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-news .news-note__when {
  font-size: 11.5px;
  color: var(--bt-silver);
}

.page-news .news-note__title {
  margin: 0 0 8px;
  font-family: var(--bt-serif);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--bt-ink);
}

.page-news .news-note__text {
  margin: 0;
  font-size: 14.5px;
  color: rgba(16, 20, 24, .74);
}

/* ---------- 05 专题 ---------- */
.page-news .news-features {
  display: grid;
  gap: 30px;
}

.page-news .news-features__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-news .news-feature {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 22px 22px;
  background: var(--news-card);
  border: 1px solid var(--bt-silver);
  border-top: 3px solid var(--bt-mist);
  transition: border-color var(--bt-dur) var(--bt-ease),
    box-shadow var(--bt-dur) var(--bt-ease),
    transform var(--bt-dur) var(--bt-ease);
}

.page-news .news-feature:hover {
  border-top-color: var(--bt-gold);
  box-shadow: var(--bt-shadow);
  transform: translateY(-3px);
}

.page-news .news-feature__meta {
  margin: 0;
  font-size: 11.5px;
  color: var(--bt-mist);
}

.page-news .news-feature__title {
  margin: 0;
  font-family: var(--bt-serif);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--bt-ink);
}

.page-news .news-feature__text {
  margin: 0 0 6px;
  font-size: 14.5px;
  color: rgba(16, 20, 24, .74);
}

/* ---------- 06 订阅与回看 ---------- */
.page-news .news-subscribe {
  background: var(--bt-night);
  color: var(--bt-paper);
  padding: 44px 0 48px;
  margin-top: 8px;
}

.page-news .news-subscribe__inner {
  display: grid;
  gap: 26px;
}

.page-news .news-subscribe .news-block__index {
  color: var(--bt-gold-soft);
  border-bottom-color: var(--bt-gold);
  margin-bottom: 12px;
}

.page-news .news-subscribe__title {
  margin: 0 0 14px;
  font-family: var(--bt-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 4.2vw, 2rem);
  line-height: 1.24;
  color: #fff;
}

.page-news .news-subscribe__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 242, 234, .82);
}

.page-news .news-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.page-news .news-subscribe .bt-btn--quiet {
  color: var(--bt-gold-soft);
}

.page-news .news-subscribe .bt-btn--quiet:hover {
  color: #fff;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .news-lead {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 40px;
    align-items: start;
  }

  .page-news .news-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-news .news-item__time {
    padding-top: 5px;
    text-align: right;
  }

  .page-news .news-notes {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 40px;
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-news .news-hero {
    padding: 58px 0 66px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, .85fr);
    gap: 60px;
    align-items: end;
  }

  .page-news .news-block {
    padding: 70px 0 58px;
  }

  .page-news .news-block__head {
    margin-bottom: 46px;
  }

  .page-news .news-columns {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 108px;
  }

  .page-news .news-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 56px;
    align-items: start;
  }

  .page-news .news-features {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: 48px;
    align-items: start;
  }

  .page-news .news-subscribe {
    padding: 58px 0 62px;
  }

  .page-news .news-subscribe__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .8fr);
    gap: 48px;
    align-items: center;
  }

  .page-news .news-subscribe__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1200px) {
  .page-news .news-columns {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 64px;
  }
}