.page-news {
  --news-topic: var(--neon);
  --news-version: var(--amber);
  --news-rule: var(--mist);
  padding-bottom: var(--gap-xl);
}

/* ---------- 首屏 ---------- */
.page-news .news-head {
  display: grid;
  gap: var(--gap-l);
  padding: var(--gap-m) 0 var(--gap-l);
  border-bottom: var(--rule);
}

.page-news .news-head__sub {
  display: block;
  margin-top: var(--gap-s);
  font-family: var(--font-data);
  font-size: clamp(0.8rem, 1.6vw, 1rem);
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-news .news-head__lede {
  max-width: 46ch;
  color: var(--chalk);
}

.page-news .news-head__ticks {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs) var(--gap-s);
  margin: var(--gap-m) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-head__ticks li {
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--line-blue);
  border-radius: var(--r-pill);
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-head__panel {
  position: relative;
  padding: var(--gap-m);
  background: var(--ink-carbon);
  border: var(--rule);
  border-radius: var(--r-m);
}

.page-news .news-head__panel::before {
  content: "";
  position: absolute;
  inset: 7px 7px auto auto;
  width: 30px;
  height: 1px;
  background: var(--neon);
  opacity: 0.7;
}

.page-news .news-head__panel-label {
  margin: 0 0 var(--gap-s);
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-news .news-head__stats {
  margin: 0;
  display: grid;
  gap: var(--gap-xs);
}

.page-news .news-head__stats div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--gap-s);
  padding-bottom: var(--gap-xs);
  border-bottom: 1px solid var(--line-blue);
}

.page-news .news-head__stats dt {
  font-size: 0.85rem;
  color: var(--mist);
}

.page-news .news-head__stats dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 0.95rem;
  color: var(--chalk);
}

.page-news .news-head__panel-note {
  margin: var(--gap-s) 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 最新条目带 ---------- */
.page-news .news-latest {
  padding-top: var(--gap-l);
}

.page-news .news-latest__banner {
  display: grid;
  gap: var(--gap-m);
  margin-bottom: var(--gap-l);
}

.page-news .news-latest__cover,
.page-news .news-series__figure,
.page-news .news-log__cover {
  margin: 0;
}

.page-news .news-latest__cover img,
.page-news .news-series__figure img,
.page-news .news-log__cover img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .news-latest__intro {
  display: grid;
  gap: var(--gap-xs);
  align-content: end;
}

/* ---------- 筛选与排序工具条 ---------- */
.page-news .news-tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-s);
  justify-content: space-between;
  align-items: center;
  padding: var(--gap-s) 0;
  border-top: var(--rule);
  border-bottom: var(--rule);
}

.page-news .news-tools__set {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
}

.page-news .news-switch {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .news-chip {
  display: inline-block;
  padding: 0.3rem 0.78rem;
  border: 1px solid var(--line-blue);
  border-radius: var(--r-pill);
  background: transparent;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  cursor: pointer;
  user-select: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .news-chip:hover {
  color: var(--chalk);
  border-color: var(--mist);
}

.page-news .news-switch:checked + .news-chip {
  color: var(--neon);
  border-color: var(--neon);
  background: var(--ink-turf);
}

.page-news .news-switch:focus-visible + .news-chip {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* ---------- 条目列表 ---------- */
.page-news .news-feed {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: var(--gap-s);
  padding: var(--gap-m) 0;
  border-bottom: var(--rule);
}

.page-news .news-item__no {
  padding-top: 0.2rem;
  padding-right: var(--gap-s);
  border-right: 1px solid var(--line-blue);
  font-family: var(--font-num);
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: right;
  color: var(--mist);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .news-item:hover .news-item__no {
  color: var(--neon);
  border-right-color: var(--neon);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--gap-s);
  margin: 0 0 0.35rem;
}

.page-news .news-tag {
  padding: 0.12rem 0.55rem;
  border: 1px solid currentColor;
  border-radius: var(--r-pill);
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  background: transparent;
}

.page-news .news-tag--topic {
  color: var(--news-topic);
}

.page-news .news-tag--version {
  color: var(--news-version);
}

.page-news .news-tag--rule {
  color: var(--news-rule);
}

.page-news .news-item__time {
  font-family: var(--font-num);
  font-size: 0.78rem;
  color: var(--mist);
}

.page-news .news-item__title {
  margin: 0;
  font-family: var(--font-title);
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--chalk);
  transition: color var(--dur) var(--ease);
}

.page-news .news-item:hover .news-item__title {
  color: var(--neon);
}

.page-news .news-item__sum {
  margin: 0.45rem 0 0;
  max-width: 46ch;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--mist);
}

/* 纯 CSS 分类筛选 */
.page-news .news-board:has(#nf-topic:not(:checked)) .news-item--topic,
.page-news .news-board:has(#nf-version:not(:checked)) .news-item--version,
.page-news .news-board:has(#nf-rule:not(:checked)) .news-item--rule {
  display: none;
}

/* 按分类归堆：左侧加语义色条并重排 */
.page-news .news-board:has(#ns-column:checked) .news-item {
  padding-left: var(--gap-s);
}

.page-news .news-board:has(#ns-column:checked) .news-item--topic {
  order: 1;
  box-shadow: inset 3px 0 0 var(--news-topic);
}

.page-news .news-board:has(#ns-column:checked) .news-item--version {
  order: 2;
  box-shadow: inset 3px 0 0 var(--news-version);
}

.page-news .news-board:has(#ns-column:checked) .news-item--rule {
  order: 3;
  box-shadow: inset 3px 0 0 var(--news-rule);
}

/* ---------- 通用小节头 ---------- */
.page-news .news-section-head {
  display: grid;
  gap: var(--gap-xs);
  margin-bottom: var(--gap-l);
  padding-bottom: var(--gap-m);
  border-bottom: var(--rule);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-top: var(--gap-l);
}

.page-news .news-series__item {
  display: grid;
  gap: var(--gap-m);
  padding: var(--gap-m) 0 var(--gap-l);
  border-bottom: var(--rule);
}

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

.page-news .news-series__kicker {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-news .news-series__text h3 {
  margin: 0.4rem 0 0.6rem;
  font-family: var(--font-title);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.4;
  color: var(--chalk);
}

.page-news .news-series__text p {
  margin: 0;
  max-width: 42ch;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .news-series__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin: var(--gap-s) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-series__facts li {
  padding: 0.2rem 0.55rem;
  border: 1px dashed var(--line-blue);
  border-radius: var(--r-s);
  font-family: var(--font-num);
  font-size: 0.76rem;
  color: var(--mist);
}

.page-news .news-series__aside {
  display: flex;
  align-items: center;
  padding: var(--gap-m);
  border: 1px solid var(--line-blue);
  border-radius: var(--r-m);
  background: var(--ink-turf);
}

/* ---------- 版本更新日志 ---------- */
.page-news .news-log {
  padding-top: var(--gap-l);
}

.page-news .news-log__cover {
  margin-bottom: var(--gap-l);
}

.page-news .news-log__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-log__item {
  display: grid;
  gap: 0.3rem;
  padding: var(--gap-m) 0;
  border-bottom: 1px dashed var(--line-blue);
}

.page-news .news-log__ver {
  font-family: var(--font-num);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--news-version);
}

.page-news .news-log__desc {
  margin: 0;
  max-width: 48ch;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--chalk);
}

.page-news .news-log__desc .tag {
  margin-left: 0.4rem;
  vertical-align: 0.1em;
}

.page-news .news-log__details {
  margin-top: var(--gap-l);
}

/* ---------- 编辑口径 ---------- */
.page-news .news-editorial {
  padding-top: var(--gap-l);
}

.page-news .news-editorial__body {
  display: grid;
  gap: var(--gap-m);
}

.page-news .news-editorial__body .prose {
  max-width: 42em;
  color: var(--chalk);
}

.page-news .news-editorial__body .figure-note {
  align-self: start;
}

/* ---------- 回看入口 ---------- */
.page-news .news-return {
  padding-top: var(--gap-l);
}

.page-news .news-return__grid {
  display: grid;
  gap: var(--gap-m);
}

.page-news .news-return__card {
  display: grid;
  gap: var(--gap-xs);
  padding: var(--gap-m);
  background: var(--ink-carbon);
  border: 1px solid var(--line-blue);
  border-radius: var(--r-m);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .news-return__card:hover,
.page-news .news-return__card:focus-visible {
  border-color: var(--neon);
  background: var(--ink-turf);
  transform: translateY(-2px);
}

.page-news .news-return__tag {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-news .news-return__card h3 {
  margin: 0;
  font-family: var(--font-title);
  font-size: 1.08rem;
  line-height: 1.45;
  color: var(--chalk);
}

.page-news .news-return__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .news-log__item {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: var(--gap-m);
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-news .news-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: var(--gap-xl);
  }

  .page-news .news-latest__banner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--gap-l);
    align-items: end;
  }

  .page-news .news-series__item {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
    gap: var(--gap-l);
  }

  .page-news .news-editorial__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--gap-xl);
    align-items: start;
  }

  .page-news .news-item__title {
    font-size: 1.18rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-chip,
  .page-news .news-item,
  .page-news .news-item__no,
  .page-news .news-item__title,
  .page-news .news-return__card {
    transition-duration: 1ms;
  }

  .page-news .news-return__card:hover,
  .page-news .news-return__card:focus-visible {
    transform: none;
  }
}