.page-news {
  --news-gap: 26px;
  overflow-wrap: break-word;
}

.page-news .crumbs {
  margin: 0 0 20px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: 26px 0 0;
}

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

.page-news .news-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.2vw, 50px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--lake-deep);
  max-width: 16em;
}

.page-news .news-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-news .news-meta {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 22px;
  border-left: 2px solid var(--lake);
  display: grid;
  gap: 12px;
}

.page-news .news-meta__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 14px;
}

.page-news .news-meta__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .news-meta__v {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--lake-deep);
}

.page-news .news-meta__v--gold {
  color: var(--gold);
}

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

/* ---------- 通用：章节标题 / 媒体 ---------- */
.page-news .news-window__title,
.page-news .news-feed__title,
.page-news .news-labels__title,
.page-news .news-versions__title,
.page-news .news-notes__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.24;
  color: var(--lake-deep);
}

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

.page-news .media__frame {
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--lake-soft);
}

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

.page-news .media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 更新窗口 ---------- */
.page-news .news-window {
  margin-top: 56px;
}

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

.page-news .news-window p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 34em;
}

.page-news .news-window__notes {
  list-style: none;
  margin: 0;
  padding: 22px 24px;
  background: var(--lake-tint);
  border-radius: var(--radius-m);
  display: grid;
  gap: 14px;
}

.page-news .news-window__notes li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.page-news .news-window__notes .mono {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--lake);
}

.page-news .news-band {
  margin-top: 34px;
}

/* ---------- 条目记录 ---------- */
.page-news .news-feed {
  margin-top: 64px;
}

.page-news .news-feed__head {
  display: grid;
  gap: 22px;
}

.page-news .filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .filter-btn {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
}

.page-news .news-log {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .news-log__item {
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-log__item[hidden] {
  display: none;
}

.page-news .news-log__item summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 7px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  transition: background-color var(--t-fast) var(--ease);
}

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

.page-news .news-log__item summary::marker {
  content: "";
}

.page-news .news-log__item summary:hover {
  background: var(--grass-soft);
}

.page-news .news-log__item details[open] summary {
  border-bottom: 1px dashed var(--line);
  margin-bottom: 16px;
}

.page-news .news-log__ver {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--lake);
}

.page-news .news-log__ver--beta {
  color: var(--gold);
}

.page-news .news-log__title {
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .news-log__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-self: start;
}

.page-news .news-log__tag {
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1;
  padding: 5px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  background: var(--lake-soft);
  color: var(--lake-deep);
}

.page-news .news-log__tag--mid {
  background: rgba(31, 121, 183, 0.14);
  color: var(--lake);
}

.page-news .news-log__tag--grass {
  background: var(--grass-soft);
  color: var(--grass);
}

.page-news .news-log__tag--line {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--mist);
}

.page-news .news-log__body {
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- 分类标签 ---------- */
.page-news .news-labels {
  margin-top: 64px;
}

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

.page-news .news-labels p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 34em;
}

/* ---------- 版本线 ---------- */
.page-news .news-versions {
  margin-top: 64px;
}

.page-news .news-versions__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .news-versions__item {
  display: grid;
  gap: 6px 22px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-versions__tag {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--lake);
}

.page-news .news-versions__text {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-news .news-versions__name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-news .news-versions__figure {
  margin-top: 34px;
}

/* ---------- 变更说明 ---------- */
.page-news .news-notes {
  margin-top: 64px;
}

.page-news .news-notes__grid {
  display: grid;
  gap: 30px;
}

.page-news .news-notes p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
  max-width: 34em;
}

.page-news .news-notes a {
  color: var(--lake);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-notes__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .news-notes__list li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-news .news-notes__list .mono {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--lake);
}

/* ---------- 收束 ---------- */
.page-news .news-tail {
  margin-top: 64px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
}

.page-news .news-tail__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 44ch;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-log__item summary {
    grid-template-columns: 100px minmax(0, 1fr) auto;
    gap: 18px;
    align-items: baseline;
    padding: 18px 0;
  }

  .page-news .news-log__tags {
    justify-content: flex-end;
  }

  .page-news .news-log__body {
    padding-left: 118px;
    max-width: calc(62ch + 118px);
  }

  .page-news .news-versions__item {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    padding: 20px 0;
  }

  .page-news .news-versions__name {
    display: inline;
    margin-right: 10px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 56px;
    align-items: end;
  }

  .page-news .news-window__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 64px;
    align-items: start;
  }

  .page-news .news-labels__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: 60px;
    align-items: center;
  }

  .page-news .news-notes__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
    gap: 60px;
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-news .news-feed__head {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 40px;
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-log__item summary {
    transition: none;
  }
}