.page-news {
  --news-sticky-top: 24px;
  --news-mark-w: 4px;
}

.page-news .section {
  border-top: 1px solid var(--line);
}

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

.page-news .breadcrumb {
  margin-bottom: 20px;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  padding: 28px 0 48px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero__grid {
  display: grid;
  gap: 32px;
}

.page-news .news-hero__kicker {
  color: var(--signal);
  margin: 0;
}

.page-news .news-hero__title {
  margin: 16px 0 0;
  font-size: var(--f-80);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-news .news-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: var(--f-18);
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.86;
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 20px 36px;
}

.page-news .news-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-news .news-hero__num {
  font-family: var(--mono);
  font-size: var(--f-36);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--signal);
}

.page-news .news-hero__unit {
  font-size: var(--f-14);
  letter-spacing: 0.1em;
  color: var(--fog);
}

.page-news .news-hero__jump {
  margin: 26px 0 0;
  font-size: var(--f-14);
}

.page-news .news-hero__jump a {
  color: var(--signal);
}

.page-news .news-hero__frame {
  margin: 0;
}

.page-news .news-hero__frame img {
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  box-shadow: 4px 4px 0 rgba(38, 48, 58, 0.9);
}

/* ---------- 栏目索引 ---------- */

.page-news .news-columns {
  padding-top: 48px;
}

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

.page-news .news-column {
  position: relative;
  background: var(--ink);
  padding: 22px 20px 26px;
}

.page-news .news-column::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--fog);
}

.page-news .news-column[data-tone="signal"]::before {
  background: var(--signal);
}

.page-news .news-column[data-tone="data"]::before {
  background: var(--data);
}

.page-news .news-column[data-tone="index"]::before {
  background: var(--index);
}

.page-news .news-column[data-tone="fog"]::before {
  background: var(--fog);
}

.page-news .news-column__no {
  display: block;
  font-family: var(--mono);
  font-size: var(--f-14);
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-news .news-column__name {
  margin: 10px 0 12px;
  font-size: var(--f-24);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper);
}

.page-news .news-column__desc {
  margin: 0;
  font-size: var(--f-14);
  line-height: 1.85;
  color: var(--fog);
}

.page-news .news-column__meta {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: var(--f-14);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: rgba(140, 153, 166, 0.8);
}

/* ---------- 更新条目 ---------- */

.page-news .news-latest {
  padding-top: 48px;
}

.page-news .news-update {
  display: grid;
  gap: 28px;
}

.page-news .news-update__fig {
  margin: 0;
}

.page-news .news-update__fig img {
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  box-shadow: 4px 4px 0 rgba(38, 48, 58, 0.9);
}

.page-news .news-filter {
  position: relative;
  min-width: 0;
}

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

.page-news .news-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-filter__tab {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--carbon);
  color: var(--fog);
  font-size: var(--f-14);
  letter-spacing: 0.12em;
  cursor: pointer;
  user-select: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-news .news-filter__tab:hover {
  color: var(--paper);
  border-color: var(--fog);
}

.page-news #news-cat-all:checked ~ .news-filter__bar [for="news-cat-all"],
.page-news #news-cat-report:checked ~ .news-filter__bar [for="news-cat-report"],
.page-news #news-cat-review:checked ~ .news-filter__bar [for="news-cat-review"],
.page-news #news-cat-archive:checked ~ .news-filter__bar [for="news-cat-archive"],
.page-news #news-cat-version:checked ~ .news-filter__bar [for="news-cat-version"] {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--ink);
  font-weight: 700;
}

.page-news #news-cat-report:checked ~ .news-list .news-item:not([data-cat="report"]),
.page-news #news-cat-review:checked ~ .news-list .news-item:not([data-cat="review"]),
.page-news #news-cat-archive:checked ~ .news-list .news-item:not([data-cat="archive"]),
.page-news #news-cat-version:checked ~ .news-list .news-item:not([data-cat="version"]) {
  display: none;
}

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

.page-news .news-item {
  display: grid;
  grid-template-columns: var(--news-mark-w) minmax(0, 1fr);
  grid-template-areas:
    "mark body"
    ". time";
  gap: 14px 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.18s var(--ease);
}

.page-news .news-item:hover {
  background: rgba(17, 21, 27, 0.7);
}

.page-news .news-item__mark {
  grid-area: mark;
  align-self: stretch;
  width: var(--news-mark-w);
  background: var(--fog);
  transition: width 0.18s var(--ease);
}

.page-news .news-item[data-cat="report"] .news-item__mark {
  background: var(--signal);
}

.page-news .news-item[data-cat="review"] .news-item__mark {
  background: var(--data);
}

.page-news .news-item[data-cat="archive"] .news-item__mark {
  background: var(--index);
}

.page-news .news-item[data-cat="version"] .news-item__mark {
  background: var(--fog);
}

.page-news .news-item:hover .news-item__mark {
  width: 8px;
}

.page-news .news-item__body {
  grid-area: body;
  min-width: 0;
}

.page-news .news-item__tag {
  display: inline-block;
  margin: 0 0 8px;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
  font-size: var(--f-14);
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-news .news-item[data-cat="report"] .news-item__tag {
  color: var(--signal);
}

.page-news .news-item[data-cat="review"] .news-item__tag {
  color: var(--data);
}

.page-news .news-item[data-cat="archive"] .news-item__tag {
  color: var(--index);
}

.page-news .news-item[data-cat="version"] .news-item__tag {
  color: var(--fog);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-size: var(--f-18);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .news-item__desc {
  margin: 0;
  font-size: var(--f-14);
  line-height: 1.8;
  color: var(--fog);
}

.page-news .news-item__hint {
  margin: 10px 0 0;
  font-size: var(--f-14);
  letter-spacing: 0.06em;
  color: var(--fog);
  opacity: 0.65;
  transition: color 0.18s var(--ease), opacity 0.18s var(--ease);
}

.page-news .news-item:hover .news-item__hint {
  color: var(--signal);
  opacity: 1;
}

.page-news .news-item__time {
  grid-area: time;
  align-self: start;
  justify-self: start;
  margin: 0;
  font-size: var(--f-14);
  letter-spacing: 0.1em;
  color: var(--fog);
}

/* ---------- 专题连载 ---------- */

.page-news .news-series {
  padding-top: 48px;
}

.page-news .news-series--alt {
  padding-bottom: 56px;
}

.page-news .news-series__row {
  display: grid;
  gap: 28px;
}

.page-news .news-series__fig {
  margin: 0;
}

.page-news .news-series__fig img {
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  box-shadow: 4px 4px 0 rgba(38, 48, 58, 0.9);
}

.page-news .news-series__title {
  margin: 10px 0 14px;
  font-size: var(--f-24);
  font-weight: 800;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .news-series__lede {
  margin: 0 0 16px;
  font-size: var(--f-18);
  line-height: 1.75;
  color: rgba(244, 247, 244, 0.82);
}

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

.page-news .news-series__points li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 22px;
  font-size: var(--f-14);
  line-height: 1.8;
  color: var(--fog);
}

.page-news .news-series__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 10px;
  height: 2px;
  background: var(--signal);
}

.page-news .news-series--alt .news-series__points li::before {
  background: var(--index);
}

.page-news .news-fold {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-news .news-fold > summary {
  cursor: pointer;
  font-size: var(--f-14);
  letter-spacing: 0.12em;
  color: var(--signal);
  list-style: none;
}

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

.page-news .news-fold > summary::before {
  content: "+ ";
  font-family: var(--mono);
}

.page-news .news-fold[open] > summary::before {
  content: "− ";
}

.page-news .news-fold__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-news .news-fold__list li {
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: var(--f-14);
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 订阅与回看 ---------- */

.page-news .news-digest {
  background: var(--moss);
  padding-bottom: 56px;
}

.page-news .news-digest__grid {
  display: grid;
  gap: 36px;
}

.page-news .news-digest__label {
  color: var(--signal);
  margin: 0;
}

.page-news .news-digest__title {
  margin: 14px 0 16px;
  font-size: var(--f-36);
  font-weight: 900;
  line-height: 1.18;
  color: var(--paper);
}

.page-news .news-digest__lede {
  margin: 0;
  max-width: 48ch;
  font-size: var(--f-18);
  line-height: 1.75;
  color: rgba(244, 247, 244, 0.86);
}

.page-news .news-digest__cta {
  margin: 26px 0 0;
}

.page-news .news-digest__note {
  margin: 14px 0 0;
  font-size: var(--f-14);
  line-height: 1.7;
  color: rgba(244, 247, 244, 0.62);
}

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

.page-news .news-digest__list .index-list__item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 6px 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(244, 247, 244, 0.18);
}

.page-news .news-digest__list .index-list__no {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: var(--f-14);
  color: var(--signal);
}

.page-news .news-digest__list .index-list__title {
  font-size: var(--f-18);
  font-weight: 700;
  color: var(--paper);
}

.page-news .news-digest__list .index-list__desc {
  font-size: var(--f-14);
  line-height: 1.75;
  color: rgba(244, 247, 244, 0.72);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .news-columns__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-item {
    grid-template-columns: var(--news-mark-w) minmax(0, 1fr) auto;
    grid-template-areas: "mark .page-news time";
    gap: 20px;
    align-items: start;
  }

  .page-news .news-item__time {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    justify-self: end;
    padding-left: 14px;
    border-left: 1px solid var(--line);
    min-height: 78px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding: 40px 0 64px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 56px;
    align-items: start;
  }

  .page-news .news-columns__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-column {
    padding: 26px 24px 32px;
  }

  .page-news .news-update {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-news .news-series__row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 52px;
    align-items: center;
  }

  .page-news .news-series__row--flip .news-series__fig {
    order: 2;
  }

  .page-news .news-digest__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 64px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-update {
    grid-template-columns: 340px minmax(0, 1fr);
  }

  .page-news .news-hero__aside {
    margin-top: 36px;
  }
}

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