.page-news {
  --news-line: #C9D2DC;
  --news-gap: 24px;
  --news-radius: 2px;
  background: var(--bb-mist);
  color: var(--bb-ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: 28px 0 44px;
  background: linear-gradient(180deg, #FFFFFF 0%, var(--bb-mist) 100%);
  border-bottom: 1px solid var(--bb-silver);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 95, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 95, 255, .055) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 88%);
  pointer-events: none;
}

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

.page-news .breadcrumb {
  font-size: 13px;
  color: var(--bb-ink-soft);
  margin-bottom: 26px;
}

.page-news .breadcrumb a {
  color: var(--bb-ink-soft);
  text-decoration: none;
}

.page-news .breadcrumb a:hover {
  color: var(--bb-blue);
}

.page-news .news-hero__inner {
  display: grid;
  gap: 32px;
}

.page-news .news-hero__lead-col {
  min-width: 0;
}

.page-news .news-hero h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(27px, 4.4vw, 46px);
  line-height: 1.26;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  color: var(--bb-ink);
  max-width: 20em;
}

.page-news .news-hero__lead {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--bb-ink-soft);
  max-width: 40em;
  padding-left: 18px;
  border-left: 3px solid var(--bb-blue);
}

.page-news .news-hero__hint {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--bb-ink-soft);
  max-width: 40em;
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--bb-silver);
  border: 1px solid var(--bb-silver);
  align-self: start;
}

.page-news .news-stats__item {
  background: #FFFFFF;
  padding: 16px 16px 18px;
  min-width: 0;
}

.page-news .news-stats__label {
  margin: 0 0 8px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--bb-ink-soft);
}

.page-news .news-stats__num {
  margin: 0;
  font-size: 26px;
  line-height: 1.1;
  font-weight: 600;
  color: var(--bb-blue);
  letter-spacing: -0.01em;
}

.page-news .news-stats__num span {
  font-size: 13px;
  font-weight: 400;
  color: var(--bb-ink-soft);
  margin-left: 4px;
}

/* ---------- 目录 ---------- */
.page-news .anchor-index {
  margin: 32px auto 8px;
}

.page-news .anchor-index__title {
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bb-ink-soft);
  margin: 0 0 12px;
}

.page-news .anchor-index ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .anchor-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  font-size: 14px;
  color: var(--bb-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--bb-silver);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .anchor-index a:hover {
  color: var(--bb-blue);
  border-color: var(--bb-blue);
}

.page-news .anchor-index .mono {
  font-size: 12px;
  color: var(--bb-blue);
}

/* ---------- 区块通用 ---------- */
.page-news .news-section {
  padding: 56px 0;
}

.page-news .sec-head {
  margin-bottom: 28px;
  max-width: 46em;
}

.page-news .sec-head h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(23px, 3.1vw, 33px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  margin: 10px 0 14px;
  color: var(--bb-ink);
}

.page-news .sec-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--bb-ink-soft);
  max-width: 38em;
}

.page-news .sec-head .eyebrow {
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bb-blue);
  margin: 0;
}

.page-news .sec-head--light h2 { color: #FFFFFF; }
.page-news .sec-head--light p { color: rgba(244, 246, 249, .8); }
.page-news .sec-head--light .eyebrow { color: var(--bb-amber); }

/* ---------- 筛选条 ---------- */
.page-news .news-filter {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  margin: -12px 0 24px;
  background: rgba(244, 246, 249, .95);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--bb-silver);
}

.page-news .news-filter__label {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--bb-ink-soft);
  margin-right: 4px;
}

.page-news .filter-btn {
  font-family: var(--font-narrow);
  font-size: 14px;
  letter-spacing: .02em;
  padding: 7px 15px;
  border: 1px solid var(--bb-silver);
  border-radius: var(--news-radius);
  background: #FFFFFF;
  color: var(--bb-ink);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .filter-btn:hover {
  border-color: var(--bb-blue);
  color: var(--bb-blue);
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--bb-blue);
  border-color: var(--bb-blue);
  color: #FFFFFF;
}

.page-news [data-filter-item][hidden] {
  display: none !important;
}

/* ---------- 案例卡片流 ---------- */
.page-news .case-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-news .case-card {
  position: relative;
  min-width: 0;
  background: #FFFFFF;
  border: 1px solid var(--bb-silver);
  border-top: 3px solid var(--bb-navy);
  padding: 20px 20px 22px;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .case-card:hover {
  transform: translateY(-3px);
  border-top-color: var(--bb-blue);
}

.page-news .case-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-news .case-card__num {
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--bb-navy);
  background: var(--bb-pale);
  padding: 3px 8px;
  border-radius: var(--news-radius);
}

.page-news .case-card__title {
  font-size: 18.5px;
  font-weight: 600;
  line-height: 1.42;
  margin: 14px 0 8px;
  color: var(--bb-ink);
}

.page-news .case-card__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bb-ink-soft);
}

.page-news .case-card__meta .mono {
  color: var(--bb-blue);
  font-weight: 600;
}

.page-news .case-card__desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--bb-ink-soft);
}

.page-news .case-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-news .case-card__tags li {
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--bb-navy);
  border: 1px solid var(--bb-silver);
  border-radius: 999px;
  padding: 2px 10px;
}

.page-news .case-card .collapse {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--bb-silver);
}

.page-news .case-card .collapse__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 12px;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--font-narrow);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--bb-blue);
}

.page-news .case-card .collapse__icon {
  font-size: 16px;
  line-height: 1;
  color: var(--bb-amber);
}

.page-news .case-card .collapse__body {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--bb-ink-soft);
}

.page-news .case-card .collapse__body p {
  margin: 0;
}

/* ---------- 季度归档 ---------- */
.page-news .news-quarters {
  padding: 56px 0;
  color: var(--bb-mist);
}

.page-news .quarters__layout {
  display: grid;
  gap: 30px;
}

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

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

.page-news .quarters__note {
  margin: 22px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 246, 249, .82);
  max-width: 40em;
  padding-left: 16px;
  border-left: 3px solid var(--bb-amber);
}

.page-news .quarter-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .quarter-band__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 15px 18px;
  background: rgba(244, 246, 249, .07);
  border: 1px solid rgba(201, 210, 220, .34);
  color: var(--bb-mist);
}

.page-news .quarter-band__item--latest {
  background: var(--bb-amber);
  border-color: var(--bb-amber);
  color: var(--bb-black);
}

.page-news .quarter-band__period {
  font-size: 12px;
  letter-spacing: .1em;
  opacity: .75;
}

.page-news .quarter-band__name {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.page-news .quarter-band__count {
  font-size: 13px;
  letter-spacing: .01em;
}

.page-news .quarter-band__item .tag {
  align-self: flex-start;
  font-family: var(--font-narrow);
  font-size: 11.5px;
  letter-spacing: .08em;
  padding: 2px 8px;
  background: var(--bb-black);
  color: var(--bb-amber);
  border-radius: var(--news-radius);
}

/* ---------- 电脑端专题 ---------- */
.page-news .news-pc {
  padding: 56px 0;
  color: var(--bb-mist);
}

.page-news .pc-layout {
  display: grid;
  gap: 28px;
}

.page-news .pc-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(201, 210, 220, .24);
  border: 1px solid rgba(201, 210, 220, .24);
}

.page-news .pc-group {
  background: #171C24;
  padding: 22px 20px 24px;
  min-width: 0;
}

.page-news .pc-group__num {
  margin: 0;
  font-size: 32px;
  line-height: 1;
  font-weight: 600;
  color: var(--bb-amber);
  letter-spacing: -0.02em;
}

.page-news .pc-group__title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  margin: 12px 0 8px;
  color: #FFFFFF;
}

.page-news .pc-group__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 246, 249, .76);
}

.page-news .pc-group__ref {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--bb-amber);
  letter-spacing: .02em;
}

.page-news .pc-group__case {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 246, 249, .6);
}

.page-news .pc-fig {
  margin: 0;
}

.page-news .pc-fig .img-frame__caption {
  color: rgba(244, 246, 249, .68);
}

/* ---------- 安装纪实 ---------- */
.page-news .news-onsite {
  padding: 56px 0;
  background: var(--bb-pale);
}

.page-news .onsite-layout {
  display: grid;
  gap: 30px;
}

.page-news .onsite-fig {
  margin: 0;
}

.page-news .onsite-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .onsite-step {
  position: relative;
  padding-left: 56px;
  min-width: 0;
}

.page-news .onsite-step__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-size: 14px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--bb-navy);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}

.page-news .onsite-step h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin: 6px 0 6px;
  color: var(--bb-ink);
}

.page-news .onsite-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--bb-ink-soft);
}

/* ---------- 回访记录 ---------- */
.page-news .news-callback {
  padding: 56px 0;
  color: var(--bb-mist);
}

.page-news .callback-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .callback-item {
  min-width: 0;
  padding: 20px 20px 22px;
  background: rgba(244, 246, 249, .08);
  border-left: 3px solid var(--bb-amber);
}

.page-news .callback-item__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-news .callback-item__num {
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--bb-amber);
}

.page-news .callback-item__city {
  font-size: 12px;
  letter-spacing: .12em;
  color: rgba(244, 246, 249, .62);
}

.page-news .callback-item__body {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 246, 249, .86);
}

/* ---------- 年鉴 ---------- */
.page-news .news-yearbook {
  padding: 56px 0;
  color: var(--bb-mist);
}

.page-news .yearbook-layout {
  display: grid;
  gap: 30px;
}

.page-news .yearbook-text {
  min-width: 0;
}

.page-news .yearbook-parts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  max-width: 40em;
}

.page-news .yearbook-parts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 246, 249, .88);
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(244, 246, 249, .28);
}

.page-news .yearbook-parts .mono {
  font-size: 13px;
  color: var(--bb-amber);
}

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

.page-news .yearbook-fig {
  margin: 0;
}

.page-news .yearbook-fig .img-frame__caption {
  color: rgba(244, 246, 249, .7);
}

/* ---------- 下一步 ---------- */
.page-news .news-cta {
  padding: 52px 0;
  background: #FFFFFF;
  border-top: 1px solid var(--bb-silver);
  border-bottom: 1px solid var(--bb-silver);
}

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

.page-news .news-cta__text h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.34;
  margin: 10px 0 12px;
  color: var(--bb-ink);
}

.page-news .news-cta__text p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--bb-ink-soft);
  max-width: 42em;
}

.page-news .news-cta__text .eyebrow {
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bb-blue);
  margin: 0;
}

.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: center;
}

/* ---------- 相关入口 ---------- */
.page-news .news-related {
  padding: 44px 0 60px;
}

.page-news .news-related__title {
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bb-ink-soft);
  margin: 0 0 16px;
}

.page-news .news-related__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-related__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--bb-ink);
  text-decoration: none;
  background: #FFFFFF;
  border-left: 3px solid var(--bb-silver);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .news-related__list a:hover {
  border-left-color: var(--bb-blue);
  color: var(--bb-blue);
}

.page-news .news-related__list .mono {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--bb-blue);
  min-width: 72px;
}

/* ---------- 图片容器兜底 ---------- */
.page-news .img-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .img-frame__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--bb-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-news .news-hero {
    padding: 34px 0 54px;
  }

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

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

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

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

  .page-news .onsite-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 28px;
  }

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

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 48px;
    align-items: end;
  }

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

  .page-news .anchor-index ol {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-news .case-stream {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 26px 24px;
    align-items: start;
  }

  .page-news .case-card {
    grid-column: span 6;
  }

  .page-news .case-card:nth-child(4n+1) {
    grid-column: span 7;
  }

  .page-news .case-card:nth-child(4n+2) {
    grid-column: span 5;
    margin-top: 44px;
  }

  .page-news .case-card:nth-child(4n+3) {
    grid-column: span 5;
  }

  .page-news .case-card:nth-child(4n+4) {
    grid-column: span 7;
    margin-top: 44px;
  }

  .page-news .quarters__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .pc-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

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

  .page-news .onsite-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

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

  .page-news .yearbook-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .news-cta__inner {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 40px;
    align-items: center;
  }

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

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

  .page-news .news-related__list a {
    flex-direction: column;
    gap: 8px;
    height: 100%;
  }
}

@media (min-width: 1180px) {
  .page-news .news-section,
  .page-news .news-quarters,
  .page-news .news-pc,
  .page-news .news-onsite,
  .page-news .news-callback,
  .page-news .news-yearbook {
    padding: 72px 0;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-news .case-card,
  .page-news .filter-btn,
  .page-news .anchor-index a,
  .page-news .news-related__list a {
    transition: none;
  }

  .page-news .case-card:hover {
    transform: none;
  }
}
<<<END>>>