.page-news {
  --news-gap: clamp(2.5rem, 6vw, 4.5rem);
  --news-pad: clamp(1.1rem, 2.4vw, 1.75rem);
  --news-line: rgba(14, 27, 42, .13);
  background: var(--paper);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(1.25rem, 3vw, 2rem) 0 clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--gold-deep) 0 2px, transparent 2px 16px);
  opacity: .55;
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .news-hero__kicker {
  margin: 0 0 1rem;
  font-size: .8125rem;
  letter-spacing: .14em;
  color: var(--gold-deep);
  text-transform: uppercase;
}

.page-news .news-hero__title {
  margin: 0 0 1.25rem;
  font-family: var(--font-head);
  font-size: var(--fs-display);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-news .news-hero__lede {
  margin: 0 0 1.75rem;
  max-width: 40ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-hero__act,
.page-news .news-links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-news .news-hero__aside {
  border-left: 1px solid var(--line-gold);
  padding-left: clamp(1rem, 2.4vw, 1.5rem);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-news .news-hero__stat {
  display: grid;
  grid-template-columns: 3rem 1fr;
  align-items: baseline;
  gap: .75rem;
}

.page-news .news-hero__num {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  color: var(--gold-deep);
  line-height: 1;
}

.page-news .news-hero__lab {
  font-size: .9375rem;
  color: var(--mist);
  letter-spacing: .02em;
}

/* ---------- 内容流 ---------- */
.page-news .news-body {
  display: grid;
  gap: var(--news-gap);
  padding-block: clamp(2.25rem, 5vw, 4rem) clamp(3rem, 7vw, 5.5rem);
}

.page-news .news-block {
  scroll-margin-top: calc(var(--rail-h) + 1.5rem);
}

.page-news .news-block__intro {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-block__foot {
  margin: 1.5rem 0 1rem;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .news-block > .btn {
  margin-top: .25rem;
}

/* ---------- 标签 ---------- */
.page-news .news-legend {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.25rem;
}

.page-news .news-chip {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  line-height: 1.6;
  padding: .1rem .55rem;
  border: 1px solid var(--news-line);
  color: var(--ink-soft);
  background: var(--shell);
}

.page-news .news-chip--ver {
  border-color: var(--gold-deep);
  color: var(--gold-deep);
  background: transparent;
}

.page-news .news-chip--idx {
  border-color: var(--ink-soft);
  color: var(--shell);
  background: var(--ink-soft);
}

.page-news .news-chip--ser {
  border-color: var(--mist);
  color: var(--mist);
  background: transparent;
}

.page-news .news-chip--ann {
  border-color: var(--gold-wash);
  color: var(--ink);
  background: var(--gold-wash);
}

/* ---------- 条目列表 ---------- */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: .4rem;
  padding: 1.1rem .75rem 1.1rem 0;
  border-bottom: 1px solid var(--news-line);
  transition: background .25s var(--ease), padding-left .25s var(--ease);
}

.page-news .news-item__num {
  font-size: .8125rem;
  letter-spacing: .1em;
  color: var(--gold-deep);
}

.page-news .news-item__title {
  margin: .55rem 0 .4rem;
  font-family: var(--font-head);
  font-size: var(--fs-sub);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-news .news-item__text {
  margin: 0 0 .6rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 58ch;
}

.page-news .news-item__time {
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--mist);
}

/* ---------- 版本演进 ---------- */
.page-news .news-figure {
  margin: 0 0 1.75rem;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--news-line);
  background: var(--ink);
  object-fit: cover;
}

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

.page-news .phase {
  display: grid;
  grid-template-columns: 1fr;
  gap: .6rem;
  padding: var(--news-pad);
  background: var(--shell);
}

.page-news .phase__tag {
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--gold-deep);
}

.page-news .phase__title {
  margin: 0 0 .45rem;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
}

.page-news .phase__body p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 60ch;
}

/* ---------- 维护记录 ---------- */
.page-news .maint-table {
  border: 1px solid var(--news-line);
  background: var(--shell);
}

.page-news .maint-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .35rem;
  padding: .9rem var(--news-pad);
  border-bottom: 1px solid var(--news-line);
}

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

.page-news .maint-row--head {
  background: var(--ink);
}

.page-news .maint-row--head .maint-cell {
  color: var(--invert);
  font-size: .75rem;
  letter-spacing: .12em;
}

.page-news .maint-cell {
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-news .maint-cell--key {
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 专题系列 ---------- */
.page-news .series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.25rem);
  align-items: start;
}

.page-news .news-figure--series {
  margin: 0;
}

.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.page-news .series-item {
  padding-left: 1rem;
  border-left: 2px solid var(--line-gold);
}

.page-news .series-item__no {
  display: block;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--gold-deep);
  margin-bottom: .4rem;
}

.page-news .series-item__title {
  margin: 0 0 .4rem;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
}

.page-news .series-item__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 56ch;
}

/* ---------- 年度总览 ---------- */
.page-news .ov-folds {
  display: grid;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
}

.page-news .ov-fold {
  background: var(--shell);
}

.page-news .ov-fold > summary {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .95rem var(--news-pad);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-news .ov-fold > summary::-webkit-details-marker {
  display: none;
}

.page-news .ov-fold > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--gold-deep);
}

.page-news .ov-fold[open] > summary::after {
  content: "–";
}

.page-news .ov-fold[open] > summary {
  background: var(--gold-wash);
}

.page-news .ov-fold__no {
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gold-deep);
}

.page-news .ov-fold__body {
  padding: .25rem var(--news-pad) 1.15rem;
  border-top: 1px solid var(--line-soft);
}

.page-news .ov-fold__body p {
  margin: .85rem 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 64ch;
}

/* ---------- 提醒与反馈 ---------- */
.page-news .news-sub {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.page-news .news-sub__title {
  margin: 0 0 .75rem;
  font-family: var(--font-head);
  font-size: var(--fs-sec);
  font-weight: 700;
}

.page-news .news-sub__text p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  max-width: 52ch;
  color: rgba(251, 247, 239, .82);
}

.page-news .news-sub__act {
  display: grid;
  gap: .75rem;
  align-content: start;
}

.page-news .news-sub__meta {
  margin: 0;
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--gold);
  word-break: break-all;
}

.page-news .news-feedback {
  border-left: 3px solid var(--gold-deep);
}

.page-news .news-feedback__title {
  margin: 0 0 .75rem;
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink);
}

.page-news .news-feedback p {
  margin: 0 0 1.25rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 66ch;
}

/* ---------- 交互态 ---------- */
.page-news .news-item:hover {
  background: var(--gold-wash);
  padding-left: .75rem;
}

.page-news .news-item:hover .news-item__num {
  color: var(--ink);
}

.page-news .series-item:hover {
  border-left-color: var(--gold-deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-item {
    grid-template-columns: 3.75rem 1fr;
    gap: 0 1.25rem;
    padding: 1.45rem .75rem 1.45rem 0;
  }

  .page-news .news-item__num {
    padding-top: .35rem;
  }

  .page-news .maint-row {
    grid-template-columns: 12rem 1fr;
    gap: 1.25rem;
    align-items: baseline;
  }

  .page-news .phase {
    grid-template-columns: 11rem 1fr;
    gap: 1.5rem;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, .8fr);
    align-items: end;
  }

  .page-news .series-grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }

  .page-news .news-sub {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .7fr);
    align-items: center;
  }
}

@media (min-width: 1180px) {
  .page-news .news-hero__title {
    max-width: 15ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .series-item {
    transition: none;
  }
}