.page-news {
  --news-dim: rgba(242, 247, 250, .7);
  --news-soft: rgba(242, 247, 250, .84);
  --news-hair: rgba(126, 150, 168, .22);
  background: var(--night);
  color: var(--frost);
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  padding: clamp(1.75rem, 4vw, 3rem) 0 clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(115% 86% at 88% 0%, rgba(15, 111, 168, .34) 0%, rgba(6, 23, 38, 0) 62%),
    linear-gradient(180deg, rgba(18, 58, 85, .5) 0%, rgba(6, 23, 38, 0) 82%);
}

.page-news .news-masthead__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-news .news-masthead__title {
  margin: .6rem 0 1rem;
  max-width: 15em;
  letter-spacing: -.015em;
}

.page-news .news-masthead__lede {
  max-width: 44em;
  margin: 0;
  color: var(--news-soft);
}

.page-news .news-facts {
  display: grid;
  gap: .85rem;
  padding: 1.15rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.page-news .news-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: .7rem;
  border-bottom: 1px dashed var(--news-hair);
}

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

.page-news .news-facts__key {
  font-size: 13px;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .news-facts__val {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--frost);
  text-align: right;
}

.page-news .news-facts__val .data-num {
  color: var(--cyan);
}

/* ---------- 筛选条 ---------- */
.page-news .news-stream {
  padding: clamp(1.75rem, 4vw, 2.75rem) 0 clamp(2rem, 4vw, 3rem);
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding-bottom: 1rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--line-strong);
}

.page-news .filter-bar__btn {
  font: inherit;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1;
  padding: .6rem .95rem;
  color: var(--frost);
  background: rgba(18, 58, 85, .55);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color .16s ease, color .16s ease, background-color .16s ease, transform .16s ease;
}

.page-news .filter-bar__btn:hover {
  border-color: var(--cyan);
  color: var(--cyan-soft);
  transform: translateY(-2px);
}

.page-news .filter-bar__btn[aria-pressed="true"] {
  border-color: var(--cyan);
  background: rgba(53, 240, 208, .13);
  color: var(--cyan-soft);
}

.page-news .filter-bar__meta {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .filter-bar__meta .data-num {
  color: var(--cyan);
}

/* ---------- 系列区块 ---------- */
.page-news .news-series {
  padding-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-news .news-series__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: .6rem 1.5rem;
  padding-bottom: .9rem;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--line-strong);
}

.page-news .news-series__title {
  margin: .25rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  letter-spacing: -.012em;
  color: var(--frost);
}

.page-news .news-series__note {
  margin: 0;
  max-width: 20em;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .news-series__body {
  display: grid;
  gap: clamp(1.25rem, 2.5vw, 1.75rem);
}

.page-news .news-band {
  height: 14px;
  margin: clamp(1.5rem, 3vw, 2.5rem) 0;
  background: linear-gradient(90deg, rgba(53, 240, 208, .55) 0%, rgba(15, 111, 168, .45) 44%, rgba(126, 150, 168, .05) 100%);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  opacity: .8;
}

/* ---------- 条目列表 ---------- */
.page-news .news-list {
  display: grid;
  border-top: 1px solid var(--line-strong);
}

.page-news .note-item {
  position: relative;
  padding: 1.05rem 1rem 1.05rem 1.15rem;
  border-bottom: 1px solid var(--line);
  transition: background-color .18s ease;
}

.page-news .note-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: .85rem;
  bottom: .85rem;
  width: 2px;
  background: var(--cyan);
  opacity: 0;
  transform: scaleY(.35);
  transform-origin: top;
  transition: opacity .18s ease, transform .18s ease;
}

.page-news .note-item:hover,
.page-news .note-item:focus-within {
  background: rgba(18, 58, 85, .45);
}

.page-news .note-item:hover::before,
.page-news .note-item:focus-within::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-news .note-item__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .35rem .85rem;
}

.page-news .note-item__title {
  flex: 1 1 13rem;
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--frost);
}

.page-news .note-item__round {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--cyan-soft);
  white-space: nowrap;
}

.page-news .note-item__lead {
  margin: .45rem 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-dim);
}

.page-news .note-item__more {
  margin-top: .55rem;
}

.page-news .note-item__more > summary {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan-soft);
  border-bottom: 1px solid rgba(53, 240, 208, .28);
  padding-bottom: 1px;
  transition: color .16s ease, border-color .16s ease;
}

.page-news .note-item__more > summary::-webkit-details-marker {
  display: none;
}

.page-news .note-item__more > summary::after {
  content: "+";
  font-size: 13px;
  line-height: 1;
}

.page-news .note-item__more[open] > summary::after {
  content: "−";
}

.page-news .note-item__more > summary:hover {
  color: var(--frost);
  border-color: var(--cyan);
}

.page-news .note-item__detail {
  margin: .65rem 0 0;
  padding-left: .9rem;
  border-left: 1px solid var(--line-strong);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--news-soft);
}

/* ---------- 图像 ---------- */
.page-news .news-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--steel);
  box-shadow: var(--shadow);
}

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

.page-news .news-figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.6rem .85rem .6rem;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--cyan-soft);
  background: linear-gradient(180deg, rgba(6, 23, 38, 0) 0%, rgba(6, 23, 38, .9) 100%);
}

/* ---------- 索引区 ---------- */
.page-news .news-index {
  padding: clamp(2rem, 4vw, 3rem) 0 clamp(3rem, 6vw, 4.5rem);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 58, 85, .35) 0%, rgba(6, 23, 38, 0) 90%);
}

.page-news .news-index__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-news .news-index__title {
  margin: .5rem 0 .75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  letter-spacing: -.012em;
  color: var(--frost);
}

.page-news .news-index__text {
  margin: 0;
  max-width: 26em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--news-dim);
}

.page-news .news-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-news .news-index__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: .85rem;
  padding: .95rem .15rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--frost);
  transition: border-color .16s ease, transform .16s ease, color .16s ease;
}

.page-news .news-index__link:hover,
.page-news .news-index__link:focus-visible {
  border-color: var(--cyan);
  transform: translateX(3px);
  color: var(--cyan-soft);
}

.page-news .news-index__link .index-list__num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-news .news-index__link .index-list__label {
  font-size: 14.5px;
  line-height: 1.5;
}

.page-news .news-index__link .index-list__meta {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--slate);
  opacity: .45;
  white-space: nowrap;
  transition: opacity .16s ease, color .16s ease;
}

.page-news .news-index__link:hover .index-list__meta,
.page-news .news-index__link:focus-visible .index-list__meta {
  opacity: 1;
  color: var(--cyan-soft);
}

.page-news .news-index__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding-top: clamp(1.25rem, 2.5vw, 1.75rem);
  border-top: 1px dashed var(--news-hair);
}

.page-news .news-index__cta-text {
  margin: 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--news-dim);
}

.page-news .news-index__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-list--duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--line-strong);
    column-gap: clamp(1rem, 2vw, 1.75rem);
  }

  .page-news .news-list--duo .note-item {
    padding-right: .25rem;
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-news .news-index__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-news .news-series__body--media-right {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-series__body--media-left {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.58fr);
    align-items: start;
  }

  .page-news .news-series__body--media-left > .news-list {
    order: 2;
  }

  .page-news .news-series__body--media-left > .news-figure {
    order: 1;
  }

  .page-news .news-series__body--media-wide {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter-bar__btn,
  .page-news .note-item,
  .page-news .note-item::before,
  .page-news .news-index__link,
  .page-news .news-index__link .index-list__meta {
    transition: none;
  }

  .page-news .filter-bar__btn:hover,
  .page-news .news-index__link:hover,
  .page-news .news-index__link:focus-visible {
    transform: none;
  }
}