.page-news{
  --nw-tint: #E7F0F0;
  --nw-ink-soft: #3D4B52;
  --nw-muted: #6B8189;
  background: var(--bs-mist);
  color: var(--bs-graphite);
  font-family: var(--bs-body);
  font-size: 16px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
}
.page-news :focus-visible{
  outline: 2px solid var(--bs-sand);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.nw-hero{ padding: 28px 0 0; }
.nw-crumb{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
  font-size: 13px;
  letter-spacing: .02em;
}
.nw-crumb .bs-breadcrumb__link{ color: var(--bs-lake); text-decoration: none; }
.nw-crumb .bs-breadcrumb__link:hover{ color: var(--bs-indigo); }
.nw-crumb span[aria-current]{ color: var(--nw-muted); }

.nw-hero__grid{ display: grid; gap: 26px; }
.nw-hero__title{
  margin: 12px 0 0;
  font-family: var(--bs-heading);
  font-weight: 800;
  font-size: clamp(30px, 7.2vw, 60px);
  line-height: 1.06;
  letter-spacing: -.022em;
  color: var(--bs-indigo-deep);
}
.nw-hero__lede{
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.86;
  color: var(--nw-ink-soft);
}
.nw-hero__aside{
  padding-left: 16px;
  align-self: end;
  max-width: 30em;
}
.nw-hero__asideTitle{
  margin: 0 0 6px;
  font-family: var(--bs-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bs-lake);
}
.nw-hero__asideBody{ margin: 0; font-size: 14px; line-height: 1.8; color: var(--nw-ink-soft); }
.nw-link{ color: var(--bs-lake); text-decoration: none; border-bottom: 1px solid currentColor; }
.nw-link:hover{ color: var(--bs-indigo); }
.nw-link--light{ color: var(--bs-sand); }
.nw-link--light:hover{ color: #fff; }

.nw-hero__figure{
  margin: 34px 0 0;
  border-top: 1px solid var(--bs-line);
  padding-top: 0;
  line-height: 0;
}
.nw-hero__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

/* ---------- 时间轴带 ---------- */
.nw-timeline{
  background: var(--bs-indigo-deep);
  color: #E8EEF2;
  padding: 46px 0 40px;
}
.nw-timeline__head{
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}
.nw-timeline__title{
  margin: 0;
  font-family: var(--bs-heading);
  font-size: clamp(22px, 4.6vw, 34px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: #fff;
}
.nw-timeline__note{ margin: 0; font-size: 13px; color: #9FB4C2; }

.nw-timeline__track{
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}
.nw-timeline__nodes{
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: max-content;
}
.nw-node{
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 176px;
  padding: 14px 18px 16px;
  border-left: 1px solid rgba(199, 210, 214, .22);
  text-decoration: none;
  color: inherit;
  transition: background-color 180ms var(--bs-ease);
}
.nw-node:hover,
.nw-node:focus-visible{ background: rgba(217, 164, 65, .12); }
.nw-node__ver{
  font-family: var(--bs-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--bs-sand);
}
.nw-node__topic{ font-size: 13px; line-height: 1.55; color: #C6D4DC; }
.nw-node__time{
  font-family: var(--bs-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: #7F97A6;
}

.nw-timeline__ruler{
  height: 16px;
  border-top: 1px solid rgba(169, 211, 216, .3);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(169, 211, 216, .45) 0 1px,
    transparent 1px 3.7%
  );
  background-position: left top;
  background-repeat: repeat-x;
  background-size: 100% 16px;
}
.nw-timeline__foot{
  margin: 14px 0 0;
  font-size: 12.5px;
  letter-spacing: .02em;
  color: #7F97A6;
}

/* ---------- 索引区 ---------- */
.nw-index{ background: var(--bs-white); padding: 48px 0 60px; }
.nw-index__grid{ display: grid; gap: 34px; }

.nw-filters{ display: flex; flex-direction: column; gap: 14px; }
.nw-filters__label{
  margin: 0;
  font-family: var(--bs-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--bs-indigo);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--bs-indigo);
}
.nw-filters__list{ display: flex; flex-direction: column; gap: 2px; }
.nw-fbtn{
  appearance: none;
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px 10px 14px;
  border: 0;
  border-left: 2px solid transparent;
  background: transparent;
  font-family: var(--bs-body);
  font-size: 14.5px;
  letter-spacing: .02em;
  color: var(--nw-ink-soft);
  cursor: pointer;
  transition: color 140ms var(--bs-ease), border-color 140ms var(--bs-ease), background-color 140ms var(--bs-ease);
}
.nw-fbtn:hover{ background: var(--bs-mist); color: var(--bs-indigo); }
.nw-fbtn[aria-pressed="true"],
.nw-fbtn.is-active{
  border-left-color: var(--bs-brick);
  color: var(--bs-sand);
  background: rgba(217, 164, 65, .1);
  font-weight: 700;
}
.nw-filters__status{
  margin: 0;
  font-family: var(--bs-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--nw-muted);
}
.nw-filters__figure{ margin: 8px 0 0; line-height: 0; }
.nw-filters__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--bs-line);
}
.nw-filters__figure figcaption{
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--nw-muted);
  line-height: 1.7;
}

.nw-feed{ border-top: 1px solid var(--bs-indigo); }
.nw-item{
  display: grid;
  gap: 10px;
  padding: 26px 0 28px;
  border-bottom: 1px solid var(--bs-line);
}
.nw-item[hidden]{ display: none !important; }
.nw-item__meta{ display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.nw-item__meta .bs-tag{
  background: var(--bs-lake-soft);
  color: var(--bs-indigo-deep);
  font-size: 11.5px;
  letter-spacing: .08em;
  padding: 3px 9px;
}
.nw-item__time{
  font-family: var(--bs-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--nw-muted);
}
.nw-item__title{
  margin: 0;
  font-family: var(--bs-heading);
  font-size: clamp(18px, 2.6vw, 23px);
  font-weight: 700;
  line-height: 1.38;
  letter-spacing: -.01em;
  color: var(--bs-indigo);
  max-width: 26em;
}
.nw-item__desc{
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--nw-ink-soft);
  max-width: 62ch;
}

.page-news .bs-acc{ margin-top: 6px; }
.page-news .bs-acc__trigger{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  border: 0;
  background: transparent;
  font-family: var(--bs-body);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--bs-lake);
  cursor: pointer;
  text-align: left;
}
.page-news .bs-acc__trigger:hover{ color: var(--bs-indigo); }
.page-news .bs-acc__trigger::before{
  content: "";
  width: 8px;
  height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 200ms var(--bs-ease);
}
.page-news .bs-acc__item[data-open] .bs-acc__trigger::before{ transform: rotate(225deg) translateY(-2px); }
.page-news .bs-acc__inner{ padding: 4px 0 10px 16px; border-left: 2px solid var(--bs-lake-soft); }

.nw-facts{ display: grid; gap: 9px; margin: 4px 0 0; }
.nw-facts dt{
  grid-column: 1;
  font-family: var(--bs-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--bs-lake);
  padding-top: 3px;
}
.nw-facts dd{
  grid-column: 2;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--nw-ink-soft);
}

/* ---------- 纹理带 ---------- */
.nw-texture{
  position: relative;
  overflow: hidden;
  background: var(--bs-indigo);
  padding: 66px 0 68px;
}
.nw-texture__img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: .22;
}
.nw-texture__inner{ position: relative; z-index: 1; }
.nw-texture__text{
  margin: 0;
  max-width: 22em;
  font-family: var(--bs-heading);
  font-size: clamp(21px, 3.6vw, 32px);
  font-weight: 700;
  line-height: 1.48;
  letter-spacing: -.01em;
  color: #fff;
}
.nw-texture__sub{
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: #BFCED8;
}

/* ---------- 阅读方式 ---------- */
.nw-reading{ background: var(--nw-tint); padding: 52px 0 58px; }
.nw-reading__head{ display: grid; gap: 14px; margin-bottom: 34px; }
.nw-reading__title{
  margin: 0;
  font-family: var(--bs-heading);
  font-size: clamp(23px, 4.6vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.018em;
  color: var(--bs-indigo-deep);
}
.nw-reading__lede{
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--nw-ink-soft);
}
.nw-reading__grid{ display: grid; gap: 24px; }
.nw-reading__cell{
  padding-top: 18px;
  border-top: 1px solid var(--bs-lake);
}
.nw-reading__num{
  display: block;
  font-family: var(--bs-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--bs-lake);
}
.nw-reading__h{
  margin: 8px 0 8px;
  font-family: var(--bs-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--bs-indigo);
}
.nw-reading__p{ margin: 0; font-size: 14px; line-height: 1.82; color: var(--nw-ink-soft); }

.nw-reading__figure{ margin: 36px 0 0; line-height: 0; }
.nw-reading__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--bs-line);
}
.nw-reading__figure figcaption{
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--nw-muted);
}

/* ---------- 反馈 ---------- */
.nw-feedback{ padding: 54px 0 64px; background: var(--bs-mist); }
.nw-feedback__grid{ display: grid; gap: 32px; }
.nw-feedback__eyebrow{ margin: 0; }
.nw-feedback__title{
  margin: 10px 0 14px;
  font-family: var(--bs-heading);
  font-size: clamp(23px, 4.6vw, 34px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.018em;
  color: var(--bs-indigo-deep);
}
.nw-feedback__p{
  margin: 0 0 14px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.84;
  color: var(--nw-ink-soft);
}
.nw-feedback__types{
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.nw-feedback__types li{
  padding: 8px 0 8px 14px;
  border-left: 2px solid var(--bs-lake-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--nw-ink-soft);
}
.nw-feedback__types strong{
  display: inline-block;
  min-width: 5em;
  color: var(--bs-indigo);
  font-weight: 700;
}
.nw-feedback__btn{ display: inline-block; margin-top: 4px; }

.nw-feedback__side{
  padding: 24px 20px;
  background: var(--bs-white);
  border-top: 3px solid var(--bs-sand);
}
.nw-feedback__sideTitle{
  margin: 0 0 14px;
  font-family: var(--bs-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--bs-lake);
}
.nw-contact{ margin: 0; padding: 0; list-style: none; display: grid; gap: 16px; }
.nw-contact__k{
  display: block;
  margin-bottom: 6px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--nw-muted);
}
.nw-copy{
  width: 100%;
  justify-content: space-between;
  font-family: var(--bs-mono);
  font-size: 13px;
  letter-spacing: .01em;
  word-break: break-all;
  text-align: left;
}
.page-news .bs-copy__hint{ font-family: var(--bs-body); font-size: 11.5px; color: var(--bs-lake); }
.nw-feedback__note{
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--nw-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px){
  .nw-facts{ grid-template-columns: 92px minmax(0, 1fr); gap: 8px 18px; }
  .nw-reading__grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 32px; }
  .nw-feedback__types li{ display: flex; gap: 10px; }
}

@media (min-width: 900px){
  .nw-hero{ padding-top: 48px; }
  .nw-hero__grid{
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }
  .nw-hero__figure{ margin-top: 44px; }
  .nw-timeline{ padding: 58px 0 46px; }
  .nw-timeline__head{
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 24px;
  }
  .nw-node{ width: 196px; }
  .nw-node__ver{ font-size: 30px; }
}

@media (min-width: 980px){
  .nw-index{ padding: 64px 0 78px; }
  .nw-index__grid{
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 68px;
    align-items: start;
  }
  .nw-filters{
    position: sticky;
    top: calc(var(--bs-frame-h) + 26px);
  }
  .nw-reading{ padding: 66px 0 72px; }
  .nw-reading__grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
  .nw-reading__cell{ padding: 20px 22px 0 0; }
  .nw-reading__cell + .nw-reading__cell{ padding-left: 22px; }
  .nw-feedback{ padding: 68px 0 80px; }
  .nw-feedback__grid{ grid-template-columns: minmax(0, 1fr) 340px; gap: 60px; align-items: start; }
  .nw-feedback__side{ padding: 28px 26px; }
}

@media (min-width: 1200px){
  .nw-index__grid{ grid-template-columns: 268px minmax(0, 1fr); gap: 84px; }
  .nw-item{ padding: 30px 0 32px; }
}

@media (prefers-reduced-motion: reduce){
  .page-news *{ transition: none !important; animation: none !important; }
}