.page-news {
  --news-line: rgba(22, 34, 46, 0.92);
  --news-line-soft: rgba(22, 34, 46, 0.6);
  --news-rail-w: 264px;
  --news-gap: clamp(20px, 3vw, 40px);
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 20px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-news .news-crumbs .crumbs__item {
  color: var(--text-faint);
  text-decoration: none;
}

.page-news .news-crumbs a.crumbs__item {
  transition: color var(--t) linear;
}

.page-news .news-crumbs a.crumbs__item:hover {
  color: var(--cyan);
}

.page-news .news-crumbs .crumbs__sep {
  color: var(--grid-line);
}

/* ---------- 页首 ---------- */
.page-news .news-head {
  padding-top: clamp(28px, 5vw, 60px);
}

.page-news .news-head__title {
  margin: 14px 0 0;
  font-size: clamp(40px, 8vw, 84px);
  line-height: 0.98;
  letter-spacing: 0.08em;
}

.page-news .news-head__lede {
  margin: 20px 0 0;
  max-width: 42ch;
}

.page-news .news-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 26px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--news-line);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.page-news .news-head__meta .mono {
  color: var(--cyan);
  font-size: 15px;
  margin-right: 4px;
}

/* ---------- 专题聚焦区 ---------- */
.page-news .news-spot__grid {
  display: grid;
  gap: 20px;
}

.page-news .news-spot__frame {
  position: relative;
  padding: 10px;
  border: 1px solid var(--news-line);
  background: var(--ink-900);
  transition: border-color var(--t) linear;
}

.page-news .news-spot__frame::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid var(--news-line-soft);
  pointer-events: none;
  z-index: 2;
}

.page-news .news-spot__frame:hover {
  border-color: var(--cyan-dim);
}

.page-news .news-spot__corner {
  position: absolute;
  z-index: 3;
  padding: 3px 7px;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--cyan-mist);
  background: rgba(5, 7, 12, 0.78);
  border: 1px solid var(--news-line-soft);
}

.page-news .news-spot__corner--tl {
  top: 16px;
  left: 16px;
}

.page-news .news-spot__corner--br {
  bottom: 16px;
  right: 16px;
  color: var(--text-faint);
}

.page-news .news-spot__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink-950);
}

.page-news .news-spot__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  transition: transform 400ms linear;
}

.page-news .news-spot__frame:hover .news-spot__figure img {
  transform: scale(1.02);
}

.page-news .news-spot__scan {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(53, 230, 214, 0.05) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
}

.page-news .news-spot__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--ink-900);
  border: 1px solid var(--news-line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-news .news-spot__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-spot__title {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: 0.03em;
}

.page-news .news-spot__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-news .news-spot__facts {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--news-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-news .news-spot__facts li {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 10px;
}

.page-news .news-spot__facts li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  background: var(--cyan-dim);
}

.page-news .news-spot__panel .btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 索引 + 列表 ---------- */
.page-news .news-feed__grid {
  display: grid;
  gap: 28px;
}

.page-news .news-rail__title {
  margin: 0 0 16px;
}

.page-news .news-rail {
  display: grid;
  gap: 20px;
}

.page-news .news-rail__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--news-line);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text);
}

.page-news .news-rail__head .mono {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.1em;
}

.page-news .news-rail__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-rail__link {
  display: block;
  padding: 7px 8px;
  border-left: 2px solid transparent;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--t) linear, border-color var(--t) linear,
    background-color var(--t) linear;
}

.page-news .news-rail__link:hover {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(53, 230, 214, 0.06);
}

.page-news .news-rail__note {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--news-line-soft);
  font-size: 12px;
  line-height: 1.8;
  color: var(--text-faint);
}

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

.page-news .news-list__item {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 8px 14px;
  padding: 20px 2px;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-list__item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(53, 230, 214, 0));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t) linear;
}

.page-news .news-list__item:hover::after {
  transform: scaleX(1);
}

.page-news .news-list__idx {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  transition: color var(--t) linear;
}

.page-news .news-list__item:hover .news-list__idx {
  color: var(--cyan);
}

.page-news .news-list__body {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-news .news-list__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-list__title {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-news .news-list__desc {
  margin: 0;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-news .news-list__time {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-dim);
}

.page-news .news-list__thumb {
  grid-column: 2;
  margin: 8px 0 0;
  width: 100%;
  max-width: 300px;
  aspect-ratio: 7 / 4;
  overflow: hidden;
  border: 1px solid var(--news-line);
  background: var(--ink-900);
}

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

/* ---------- 归档节奏 ---------- */
.page-news .news-arch__panel {
  padding: clamp(20px, 3vw, 36px);
  border: 1px solid var(--news-line);
  background: linear-gradient(160deg, var(--ink-900) 0%, rgba(11, 17, 25, 0.5) 100%);
}

.page-news .news-arch__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.35;
}

.page-news .news-arch__lede {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-news .news-arch__axis {
  position: relative;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0 0 0 22px;
  list-style: none;
}

.page-news .news-arch__axis::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--grid-line), var(--cyan-dim), var(--violet-dim));
}

.page-news .news-arch__step {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 0 0 20px;
}

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

.page-news .news-arch__step::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-950);
  border: 1px solid var(--cyan-dim);
}

.page-news .news-arch__step--local::before {
  border-color: var(--green);
  background: var(--green);
}

.page-news .news-arch__step--away::before {
  border-color: var(--violet);
  background: var(--violet);
}

.page-news .news-arch__time {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-news .news-arch__step--local .news-arch__time {
  color: var(--green);
}

.page-news .news-arch__step--away .news-arch__time {
  color: var(--violet);
}

.page-news .news-arch__label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-news .news-arch__cols {
  display: grid;
  gap: 20px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--news-line);
}

.page-news .news-arch__col-title {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: 0.03em;
}

.page-news .news-arch__col p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 版本纪要 ---------- */
.page-news .news-rel__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.35;
}

.page-news .news-rel__list {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--news-line);
}

.page-news .news-rel__item {
  display: grid;
  gap: 8px;
  padding: 20px 2px;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-rel__ver {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-news .news-rel__sub {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-news .news-rel__body p {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 筛选入口 ---------- */
.page-news .news-sub__grid {
  display: grid;
  gap: 26px;
}

.page-news .news-sub__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.35;
}

.page-news .news-sub__text {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-news .news-sub__chips {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-news .news-sub__chips .tag {
  margin-right: 8px;
}

.page-news .news-sub__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .news-sub__foot {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-faint);
}

.page-news .news-sub__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 214, 0.35);
  transition: border-color var(--t) linear, color var(--t) linear;
}

.page-news .news-sub__foot a:hover {
  color: var(--cyan-mist);
  border-bottom-color: var(--cyan-mist);
}

.page-news .news-sub__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--news-line);
  background: var(--ink-900);
}

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

.page-news .news-sub__caption {
  padding: 10px 12px;
  border-top: 1px solid var(--news-line);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-head__meta {
    gap: 12px 40px;
  }

  .page-news .news-sub__chips {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 22px;
  }
}

@media (min-width: 720px) {
  .page-news .news-list__item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 10px 20px;
    padding: 26px 2px;
  }

  .page-news .news-list__item--has-thumb {
    grid-template-columns: 56px minmax(0, 1fr) 190px;
  }

  .page-news .news-list__item--has-thumb .news-list__thumb {
    grid-column: 3;
    grid-row: 1 / span 2;
    margin: 0;
    max-width: none;
  }

  .page-news .news-arch__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }

  .page-news .news-rel__item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 10px 28px;
    align-items: start;
    padding: 24px 2px;
  }

  .page-news .news-rel__ver {
    padding-top: 3px;
  }
}

@media (min-width: 760px) and (max-width: 979px) {
  .page-news .news-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-news .news-spot__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: stretch;
  }

  .page-news .news-sub__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-news .news-feed__grid {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }

  .page-news .news-feed__rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1180px) {
  .page-news .news-list__item--has-thumb {
    grid-template-columns: 56px minmax(0, 1fr) 220px;
  }

  .page-news .news-head__meta {
    gap: 12px 56px;
  }
}