.page-news {
  --news-gap: clamp(16px, 2.4vw, 26px);
  background:
    radial-gradient(920px 420px at 78% -6%, rgba(47, 107, 255, .16), transparent 62%),
    radial-gradient(700px 380px at 4% 12%, rgba(34, 200, 163, .07), transparent 68%),
    var(--ink-950);
  color: var(--text-100);
  font-family: var(--font-cn);
  overflow-x: clip;
}

.page-news .news-wrap {
  width: min(calc(100% - (var(--gutter) * 2)), var(--shell));
  margin-inline: auto;
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-news [id] {
  scroll-margin-top: 118px;
}

.page-news .news-crumb {
  padding-block: 16px 0;
  font-size: 13px;
}

/* ---------- 首屏拼贴 ---------- */
.page-news .news-hero {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
  padding-block: clamp(22px, 3.6vw, 44px) clamp(28px, 4.4vw, 54px);
  border-bottom: 1px solid var(--grid-700);
}

.page-news .news-hero__lead {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-news .news-hero__lead .eyebrow {
  color: var(--blue-300);
}

.page-news .news-hero h1 {
  margin: 0;
  font-size: clamp(30px, 5.2vw, 44px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -.02em;
  max-width: 20ch;
}

.page-news .news-hero__desc {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.15vw, 17px);
  line-height: var(--lh-body);
  color: var(--text-400);
}

.page-news .news-hero__board {
  border: 1px solid var(--grid-700);
  background: linear-gradient(180deg, var(--ink-900), var(--ink-850));
  padding: 14px;
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-news .news-board__h {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--text-400);
}

.page-news .news-board__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--grid-700);
  border: 1px solid var(--grid-700);
}

.page-news .news-board__cell {
  background: var(--ink-850);
  padding: 12px 11px;
  display: grid;
  gap: 5px;
  align-content: start;
}

.page-news .news-board__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--blue-300);
  letter-spacing: -.01em;
}

.page-news .news-board__lab {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-400);
}

.page-news .news-board__foot {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-400);
  border-top: 1px dashed var(--grid-700);
  padding-top: 10px;
}

/* ---------- 主体双栏 ---------- */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  padding-top: clamp(22px, 3.4vw, 40px);
}

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

.page-news .news-rail__block {
  display: grid;
  gap: 10px;
}

.page-news .news-rail__h {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--text-400);
  text-transform: uppercase;
}

.page-news .news-rail__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-400);
  opacity: .85;
}

.page-news .news-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.page-news .news-flt {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .news-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  border: 1px solid var(--grid-700);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--text-400);
  background: var(--ink-900);
  cursor: pointer;
  user-select: none;
  transition: border-color .16s var(--ease), color .16s var(--ease), background-color .16s var(--ease);
}

.page-news .news-chip:hover {
  border-color: var(--blue-300);
  color: var(--text-100);
}

.page-news .news-flt:focus-visible + .news-chip {
  outline: 2px solid var(--blue-600);
  outline-offset: 2px;
}

.page-news .news-flt:checked + .news-chip {
  background: var(--blue-300);
  border-color: var(--blue-300);
  color: var(--ink-950);
}

.page-news:has(#nf-new:checked) #versions .news-item:not(.c-new),
.page-news:has(#nf-fix:checked) #versions .news-item:not(.c-fix),
.page-news:has(#nf-exp:checked) #versions .news-item:not(.c-exp),
.page-news:has(#nf-sec:checked) #versions .news-item:not(.c-sec),
.page-news:has(#nf-res:checked) #versions .news-item:not(.c-res) {
  display: none;
}

/* 版本刻度 */
.page-news .news-scale {
  display: grid;
  gap: 8px;
}

.page-news .news-scale__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-scale__lk {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--grid-700);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-400);
  text-decoration: none;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-news .news-scale__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--grid-700);
  transition: background-color .16s var(--ease);
}

.page-news .news-scale__lk:hover {
  border-color: var(--blue-300);
  color: var(--text-100);
}

.page-news .news-scale__lk:hover .news-scale__dot {
  background: var(--blue-600);
}

/* ---------- 章节 ---------- */
.page-news .news-flow {
  min-width: 0;
}

.page-news .news-sec {
  padding-block: clamp(28px, 4.4vw, 52px);
  border-top: 1px solid var(--grid-700);
}

.page-news .news-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .news-sec__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-news .news-sec__head h2 {
  margin: 0;
  font-size: clamp(23px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.34;
  letter-spacing: -.02em;
}

.page-news .news-sec__head p {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.1vw, 16.5px);
  line-height: var(--lh-body);
  color: var(--text-400);
}

.page-news .news-sec__head a {
  color: var(--blue-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 180, 255, .35);
}

/* ---------- 图形容器 ---------- */
.page-news .news-fig {
  margin: 0;
  border: 1px solid var(--grid-700);
  background: var(--ink-850);
  padding: 9px;
}

.page-news .news-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--grid-700);
  background: var(--ink-900);
}

.page-news .news-fig figcaption {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--text-400);
}

/* ---------- 版本章节的图 + 说明 ---------- */
.page-news .news-spread {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(18px, 2.4vw, 26px);
  align-items: center;
}

.page-news .news-spread__body {
  display: grid;
  gap: 10px;
}

.page-news .news-spread__body p {
  margin: 0;
  font-size: 15px;
  line-height: var(--lh-body);
  color: var(--text-400);
  max-width: 52ch;
}

/* ---------- 条目流 ---------- */
.page-news .news-items {
  display: grid;
  gap: 13px;
}

.page-news .news-item {
  position: relative;
  display: grid;
  gap: 9px;
  padding: 15px 15px 14px;
  border: 1px solid var(--grid-700);
  background: linear-gradient(180deg, var(--ink-900), var(--ink-850));
}

.page-news .news-item--latest {
  border-color: rgba(47, 107, 255, .55);
}

.page-news .news-item--latest::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: linear-gradient(180deg, var(--blue-600), var(--purple-500));
}

.page-news .news-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px 9px;
}

.page-news .news-item__ver {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--blue-300);
}

.page-news .news-item--latest .news-item__ver {
  color: var(--text-100);
}

.page-news .news-item__h {
  margin: 0;
  font-size: clamp(16.5px, 1.5vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -.01em;
}

.page-news .news-item__body {
  margin: 0;
  font-size: 15px;
  line-height: var(--lh-body);
  color: var(--text-400);
}

.page-news .news-item__check,
.page-news .notice__check {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--grid-700);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-400);
}

.page-news .news-item__checkk {
  color: var(--cyan-400);
  letter-spacing: .1em;
  margin-right: 8px;
}

.page-news .news-item__body a,
.page-news .news-item__check a,
.page-news .notice__check a,
.page-news .news-note__b a,
.page-news .news-details__body a {
  color: var(--blue-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 180, 255, .35);
}

.page-news .news-item__body a:hover,
.page-news .news-item__check a:hover,
.page-news .notice__check a:hover,
.page-news .news-note__b a:hover,
.page-news .news-details__body a:hover {
  color: var(--text-100);
  border-bottom-color: var(--blue-300);
}

/* ---------- 状态标签 ---------- */
.page-news .news-tag {
  display: inline-block;
  padding: 2px 9px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: .06em;
  white-space: nowrap;
}

.page-news .news-tag--new { color: var(--blue-300); }
.page-news .news-tag--fix { color: var(--text-400); }
.page-news .news-tag--sec { color: var(--alert-500); }
.page-news .news-tag--exp { color: var(--cyan-400); }
.page-news .news-tag--res { color: var(--amber-400); }

/* ---------- 分栏 ---------- */
.page-news .news-split {
  display: grid;
  gap: 20px;
  align-items: start;
}

.page-news .news-split .news-items {
  margin-top: 0;
}

/* ---------- 安全通告 ---------- */
.page-news .news-notices {
  display: grid;
}

.page-news .notice {
  display: grid;
  gap: 8px;
  padding-block: 16px;
  border-top: 1px dashed var(--grid-700);
}

.page-news .notice:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-news .notice__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .notice__coord {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--blue-300);
}

.page-news .notice__h {
  margin: 0;
  font-size: clamp(16px, 1.45vw, 17.5px);
  font-weight: 700;
  line-height: 1.5;
}

.page-news .notice__body {
  margin: 0;
  font-size: 14.8px;
  line-height: var(--lh-body);
  color: var(--text-400);
}

/* ---------- 帮助文档列表 ---------- */
.page-news .news-fig--band {
  margin-bottom: 18px;
}

.page-news .doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--grid-700);
}

.page-news .doc-list__item {
  border-bottom: 1px solid var(--grid-700);
}

.page-news .doc-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  align-items: baseline;
  padding: 14px 2px;
  text-decoration: none;
  color: inherit;
  transition: background-color .16s var(--ease), padding-left .16s var(--ease);
}

.page-news .doc-row:hover {
  background: rgba(47, 107, 255, .07);
  padding-left: 10px;
}

.page-news .doc-row__name {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.page-news .doc-row__num {
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan-400);
  white-space: nowrap;
}

.page-news .doc-row__desc {
  grid-column: 1 / -1;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-400);
}

/* ---------- 阅读说明 ---------- */
.page-news .news-notes {
  display: grid;
  gap: 1px;
  background: var(--grid-700);
  border: 1px solid var(--grid-700);
}

.page-news .news-note {
  background: var(--ink-850);
  padding: 15px 14px;
  display: grid;
  gap: 7px;
}

.page-news .news-note__h {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--blue-300);
}

.page-news .news-note__b {
  margin: 0;
  font-size: 14.5px;
  line-height: var(--lh-body);
  color: var(--text-400);
}

.page-news .news-details {
  margin-top: 14px;
  border: 1px solid var(--grid-700);
  background: var(--ink-850);
}

.page-news .news-details > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-100);
  cursor: pointer;
  list-style: none;
  transition: background-color .16s var(--ease);
}

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

.page-news .news-details > summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--blue-300);
  flex: none;
}

.page-news .news-details[open] > summary::before {
  content: "\2212";
}

.page-news .news-details > summary:hover {
  background: rgba(47, 107, 255, .09);
}

.page-news .news-details__body {
  padding: 0 14px 16px;
  display: grid;
  gap: 10px;
  border-top: 1px dashed var(--grid-700);
}

.page-news .news-details__body p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: var(--lh-body);
  color: var(--text-400);
  max-width: 68ch;
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-news .news-spread {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    gap: 28px;
  }

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

  .page-news .news-notes .news-note:first-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px 44px;
  }

  .page-news .news-split {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    gap: 34px;
  }

  .page-news .news-split--flip {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 0 46px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 112px;
    max-height: calc(100vh - 140px);
    overflow-y: auto;
    padding-right: 6px;
    border-right: 1px solid var(--grid-700);
    padding-block: 4px 16px;
  }

  .page-news .news-scale__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    position: relative;
    padding-left: 16px;
  }

  .page-news .news-scale__list::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 14px;
    bottom: 14px;
    width: 1px;
    background: var(--grid-700);
  }

  .page-news .news-scale__item {
    position: relative;
  }

  .page-news .news-scale__item::before {
    content: "";
    position: absolute;
    left: -13px;
    top: 13px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ink-950);
    border: 1px solid var(--grid-700);
    box-sizing: border-box;
  }

  .page-news .news-scale__lk {
    width: 100%;
    border: 0;
    border-radius: 0;
    padding: 6px 0;
    background: none;
  }

  .page-news .news-scale__dot {
    display: none;
  }

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

  .page-news .news-details__body p {
    max-width: 72ch;
  }
}

@media (min-width: 1180px) {
  .page-news .news-spread {
    grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}