.page-news {
  --rail-x: 13px;
  --news-body: rgba(245, 250, 255, .74);
  --news-glow:
    radial-gradient(58% 52% at 10% 4%, rgba(40, 224, 208, .16), transparent 68%),
    radial-gradient(52% 46% at 92% 18%, rgba(255, 138, 61, .14), transparent 72%);
}

.page-news button {
  font-family: inherit;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(18px, 3.6vw, 36px) clamp(34px, 6.5vw, 78px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: var(--news-glow);
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(169, 198, 216, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 198, 216, .055) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: radial-gradient(72% 62% at 50% 28%, #000, transparent 78%);
  mask-image: radial-gradient(72% 62% at 50% 28%, #000, transparent 78%);
  pointer-events: none;
}

.page-news .news-hero__inner {
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
  margin-top: 16px;
}

.page-news .news-hero__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xl);
  padding: clamp(24px, 4.4vw, 46px);
  background: linear-gradient(158deg, rgba(16, 31, 68, .93) 0%, rgba(11, 27, 58, .8) 58%, rgba(30, 58, 110, .72) 100%);
  box-shadow: var(--shadow-card);
}

.page-news .news-hero__frame::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: calc(var(--r-xl) - 10px);
  border: 1px dashed rgba(169, 198, 216, .15);
  pointer-events: none;
}

.page-news .news-hero__frame::after {
  content: "";
  position: absolute;
  left: 0;
  top: 12%;
  bottom: 12%;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: repeating-linear-gradient(180deg, rgba(40, 224, 208, .55) 0 2px, transparent 2px 12px);
  pointer-events: none;
}

.page-news .news-hero__corner {
  position: absolute;
  top: clamp(22px, 4.2vw, 44px);
  right: clamp(22px, 4.2vw, 44px);
  z-index: 1;
  padding: 3px 11px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  border: 1px solid rgba(40, 224, 208, .35);
  border-radius: var(--pill);
  background: rgba(40, 224, 208, .08);
}

.page-news .news-hero__frame .display {
  margin: 16px 0 0;
  font-size: clamp(1.95rem, 7vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--text-strong);
}

.page-news .news-hero__frame .lede {
  margin: 16px 0 0;
  max-width: 48ch;
  color: var(--news-body);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-news .news-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--text-dim);
}

.page-news .news-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-hero__facts span {
  font-size: 15px;
  color: var(--cyan);
}

.page-news .news-hero__media {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}

/* ---------- 更新日志时间轴 ---------- */
.page-news .news-log__rhythm {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-news .timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: var(--rail-x);
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(43, 140, 255, .55) 46%, rgba(255, 138, 61, .75) 100%);
  opacity: .55;
}

.page-news .timeline__item {
  position: relative;
  padding: 0 0 22px 38px;
}

.page-news .timeline__item::before {
  content: "";
  position: absolute;
  left: calc(var(--rail-x) - 4px);
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(40, 224, 208, .14);
}

.page-news .timeline__marker {
  display: inline-flex;
  align-items: center;
  margin-bottom: 10px;
  padding: 4px 12px;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--cyan);
  border: 1px solid rgba(40, 224, 208, .35);
  border-radius: var(--pill);
  background: rgba(40, 224, 208, .08);
}

.page-news .timeline__body {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(152deg, rgba(30, 58, 110, .46), rgba(16, 31, 68, .34));
  transition: transform .3s ease, border-color .3s ease;
}

.page-news .timeline__body:hover {
  transform: translateX(3px);
  border-color: rgba(40, 224, 208, .36);
}

.page-news .timeline__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .timeline__when {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-dim);
}

.page-news .timeline__title {
  margin: 0 0 8px;
  font-size: clamp(1.05rem, 1.5vw, 1.24rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-strong);
}

.page-news .timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--news-body);
}

/* ---------- 专题合集 ---------- */
.page-news .news-collections__grid {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
}

.page-news .news-collections__cover {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
}

.page-news .news-collections__body .lede {
  margin: 14px 0 0;
  max-width: 46ch;
  color: var(--news-body);
}

.page-news .collection-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .collection {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, rgba(30, 58, 110, .44), rgba(11, 27, 58, .3));
  transition: transform .3s ease, border-color .3s ease;
}

.page-news .collection:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 138, 61, .42);
}

.page-news .collection__idx {
  padding-top: 2px;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-news .collection__title {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-strong);
}

.page-news .collection__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--news-body);
}

/* ---------- 条目筛选 ---------- */
.page-news .news-filter__hint {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}

.page-news .news-filter__layout {
  display: grid;
  gap: 18px;
  margin-bottom: 26px;
}

.page-news .news-filter__figure {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-news .filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--text-dim);
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
  background: rgba(16, 31, 68, .62);
  cursor: pointer;
  transition: transform .25s ease, color .25s ease, border-color .25s ease, background .25s ease;
}

.page-news .filter-chip:hover {
  transform: translateY(-2px);
  color: var(--text-strong);
  border-color: rgba(40, 224, 208, .45);
}

.page-news .filter-chip[aria-pressed="true"] {
  color: var(--ink);
  border-color: transparent;
  background: linear-gradient(120deg, var(--cyan), var(--blue));
  box-shadow: 0 14px 28px -16px rgba(40, 224, 208, .85);
}

.page-news .filter-chip .mono {
  font-size: 12px;
  opacity: .7;
}

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

.page-news .digest {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(30, 58, 110, .5), rgba(11, 27, 58, .4));
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.page-news .digest:hover {
  transform: translateY(-4px);
  border-color: rgba(40, 224, 208, .4);
  box-shadow: 0 26px 48px -32px rgba(40, 224, 208, .7);
}

.page-news .digest[data-filtered-out] {
  display: none;
}

.page-news .digest__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-news .digest__batch {
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-news .digest__title {
  margin: 0;
  font-size: 1.04rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-strong);
}

.page-news .digest__text {
  flex: 1;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--news-body);
}

.page-news .digest__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-news .digest__where {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-news .digest__save {
  padding: 5px 14px;
  font-size: 12.5px;
  color: var(--orange);
  border: 1px solid rgba(255, 138, 61, .4);
  border-radius: var(--pill);
  background: rgba(255, 138, 61, .1);
  cursor: pointer;
  transition: background .25s ease, color .25s ease;
}

.page-news .digest__save:hover {
  background: rgba(255, 138, 61, .22);
  color: var(--amber);
}

/* ---------- 版本档案索引 ---------- */
.page-news .index-grid {
  display: grid;
  gap: 20px;
}

.page-news .news-index__figure {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xl);
}

.page-news .index-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .index-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  grid-template-areas:
    "ver title save"
    "ver meta  save";
  gap: 4px 12px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(16, 31, 68, .5);
  transition: background .25s ease, border-color .25s ease;
}

.page-news .index-row:hover {
  background: rgba(30, 58, 110, .56);
  border-color: rgba(40, 224, 208, .36);
}

.page-news .index-row__ver {
  grid-area: ver;
  align-self: start;
  padding-top: 2px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-news .index-row__title {
  grid-area: title;
  min-width: 0;
  font-size: 14.5px;
  color: var(--text-strong);
}

.page-news .index-row__meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-size: 12px;
  color: var(--mist);
}

.page-news .index-row__save {
  grid-area: save;
  align-self: center;
  padding: 5px 12px;
  font-size: 12px;
  white-space: nowrap;
  color: var(--mist);
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
  background: transparent;
  cursor: pointer;
  transition: color .25s ease, border-color .25s ease;
}

.page-news .index-row__save:hover {
  color: var(--cyan);
  border-color: rgba(40, 224, 208, .45);
}

/* ---------- 收尾指引 ---------- */
.page-news .news-next__inner {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-xl);
  background:
    radial-gradient(70% 90% at 88% 12%, rgba(255, 138, 61, .18), transparent 70%),
    linear-gradient(140deg, rgba(30, 58, 110, .62), rgba(11, 27, 58, .52));
}

.page-news .news-next h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: .01em;
  line-height: 1.3;
  color: var(--text-strong);
}

.page-news .news-next p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--news-body);
}

.page-news .news-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .digest-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .index-row {
    grid-template-columns: 76px minmax(0, 1fr) auto;
    padding: 13px 18px;
  }
}

@media (min-width: 900px) {
  .page-news {
    --rail-x: 21px;
  }

  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: stretch;
  }

  .page-news .news-hero__media img {
    height: 100%;
    object-fit: cover;
  }

  .page-news .timeline__item {
    display: grid;
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 26px;
    padding: 0 0 26px 46px;
  }

  .page-news .timeline__item::before {
    top: 22px;
  }

  .page-news .timeline__marker {
    justify-self: start;
    margin: 18px 0 0;
  }

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

  .page-news .news-filter__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, .7fr);
    align-items: center;
  }

  .page-news .index-grid {
    grid-template-columns: minmax(0, .58fr) minmax(0, 1.42fr);
    align-items: start;
  }

  .page-news .news-next__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-news .digest-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .timeline__body,
  .page-news .collection,
  .page-news .digest,
  .page-news .filter-chip,
  .page-news .index-row {
    transition: none;
  }

  .page-news .timeline__body:hover,
  .page-news .collection:hover,
  .page-news .digest:hover,
  .page-news .filter-chip:hover {
    transform: none;
  }
}