.page-news {
  --news-fix-bg: rgba(110, 130, 150, .16);
  --news-fix-bg-soft: rgba(110, 130, 150, .07);
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-sans);
}

/* ---------- 页首 ---------- */
.page-news .news-head {
  position: relative;
  background: linear-gradient(160deg, var(--abyss-900) 0%, var(--abyss-700) 100%);
  color: var(--paper-50);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  padding-block: var(--space-4) var(--space-5);
  overflow: hidden;
}

.page-news .news-head::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -130px;
  width: 400px;
  height: 400px;
  border-radius: 46% 54% 62% 38% / 52% 44% 56% 48%;
  background: radial-gradient(circle at 42% 42%, rgba(35, 224, 196, .28), transparent 68%);
  pointer-events: none;
}

.page-news .news-head .wrap {
  position: relative;
  z-index: 1;
}

.page-news .news-head .crumbs ol {
  color: var(--chart-300);
}

.page-news .news-head .crumbs a {
  color: var(--signal-100);
  text-decoration: none;
}

.page-news .news-head .crumbs a:hover,
.page-news .news-head .crumbs a:focus-visible {
  color: var(--signal-500);
  text-decoration: underline;
}

.page-news .news-head .eyebrow {
  color: var(--signal-500);
  margin-top: var(--space-3);
}

.page-news .news-head__title {
  margin: 0 0 var(--space-3);
  max-width: 24ch;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(28px, 5.4vw, 46px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-50);
}

.page-news .news-head__lead {
  margin: 0 0 var(--space-4);
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--signal-100);
}

.page-news .news-head__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-head__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--chart-300);
}

.page-news .news-head__facts .num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 32px;
  line-height: 1;
  color: var(--signal-500);
  font-variant-numeric: tabular-nums;
}

/* ---------- 看板布局 ---------- */
.page-news .news-board {
  padding-block: var(--space-5);
}

.page-news .news-board__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.page-news .news-rail {
  display: grid;
  align-content: start;
  gap: var(--space-3);
  min-width: 0;
}

.page-news .news-rail__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--abyss-900);
}

.page-news .news-rail__tabs {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-rail__tabs a {
  display: grid;
  gap: 4px;
  padding: 14px 16px 14px 18px;
  background: #fff;
  border-left: 3px solid var(--chart-300);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--abyss-900);
  text-decoration: none;
  transition: border-color .2s var(--ease-out), background-color .2s var(--ease-out), transform .2s var(--ease-out);
}

.page-news .news-rail__tabs a:hover,
.page-news .news-rail__tabs a:focus-visible {
  border-left-color: var(--signal-500);
  background: var(--signal-100);
  transform: translateX(3px);
}

.page-news .news-rail__name {
  font-weight: 700;
  font-size: 15px;
}

.page-news .news-rail__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--chart-600);
}

.page-news .news-rail__sub {
  display: grid;
  gap: 10px;
  padding: var(--space-3);
  background: var(--abyss-900);
  color: var(--paper-50);
  border-radius: var(--radius-lg);
}

.page-news .news-rail__sub h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--paper-50);
}

.page-news .news-rail__sub p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--signal-100);
}

.page-news .news-rail__sub .news-rail__hint {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--chart-300);
  transition: max-height .25s var(--ease-out), opacity .25s var(--ease-out);
}

.page-news .news-rail__sub:hover .news-rail__hint,
.page-news .news-rail__sub:focus-within .news-rail__hint {
  max-height: 120px;
  opacity: 1;
}

.page-news .news-rail__sub .btn {
  justify-self: start;
}

/* ---------- 窄卡流 ---------- */
.page-news .news-stream {
  display: grid;
  gap: var(--space-4);
  min-width: 0;
}

.page-news .news-stream__head h2 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 32px);
  line-height: 1.25;
  color: var(--abyss-900);
}

.page-news .news-stream__head p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--chart-600);
}

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

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

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

/* ---------- 回访卡片 ---------- */
.page-news .log-card {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 24px 24px 20px;
  background: #fff;
  border: 1px solid var(--hairline-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  transition: border-color .2s var(--ease-out), transform .2s var(--ease-out);
}

.page-news .log-card:hover {
  border-color: var(--signal-500);
  transform: translateY(-2px);
}

.page-news .log-card--sunset {
  border-left: 4px solid var(--sunset-500);
}

.page-news .log-card__index {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  color: var(--chart-300);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.page-news .log-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-right: 52px;
}

.page-news .log-card__title {
  flex: 1 1 100%;
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--abyss-900);
}

.page-news .log-card__meta {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--chart-600);
}

.page-news .log-card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-900);
}

.page-news .log-card__more {
  display: flex;
}

.page-news .log-card__detail {
  display: none;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--signal-100);
  font-size: 14px;
  line-height: 1.78;
  color: var(--abyss-900);
}

.page-news .log-card__detail p {
  margin: 0;
}

.page-news .log-card:has([data-log-toggle][aria-expanded="true"]) .log-card__detail {
  display: block;
}

.page-news .mini-bar {
  display: block;
  width: 120px;
  max-width: 100%;
  height: 12px;
}

.page-news .mini-bar__a {
  fill: var(--sunset-500);
}

.page-news .mini-bar__b {
  fill: var(--chart-300);
}

/* ---------- 横向专题带 ---------- */
.page-news .news-band {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--abyss-700);
  color: var(--paper-50);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.page-news .news-band .eyebrow {
  margin: 0 0 8px;
  color: var(--signal-500);
}

.page-news .news-band h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.35;
  color: var(--paper-50);
}

.page-news .news-band p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--signal-100);
}

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

/* ---------- 版本记录 ---------- */
.page-news .news-versions {
  padding-block: var(--space-5);
}

.page-news .news-versions__grid {
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

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

.page-news .version-list > li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--hairline-light);
}

.page-news .version-list > li:last-child {
  border-bottom: 1px solid var(--hairline-light);
}

.page-news .version-list__no {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.2;
  color: var(--sunset-500);
  font-variant-numeric: tabular-nums;
}

.page-news .version-list h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--abyss-900);
}

.page-news .version-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--chart-600);
}

/* ---------- 专题观察 ---------- */
.page-news .news-series {
  padding-block: var(--space-5);
  background: var(--abyss-900);
  color: var(--paper-50);
}

.page-news .news-series .eyebrow {
  color: var(--signal-500);
}

.page-news .news-series .section-title {
  color: var(--paper-50);
}

.page-news .news-series .section-lead {
  color: var(--signal-100);
}

.page-news .stage-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .stage-list > li {
  display: grid;
  gap: 8px;
  padding: var(--space-3);
  background: var(--abyss-700);
  border: 1px solid var(--hairline-dark);
  border-radius: var(--radius-lg);
}

.page-news .stage-list__no {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 30px;
  line-height: 1;
  color: var(--signal-500);
  font-variant-numeric: tabular-nums;
}

.page-news .stage-list h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  color: var(--paper-50);
}

.page-news .stage-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--chart-300);
}

/* ---------- 纠错公告 ---------- */
.page-news .news-fixes {
  padding-block: var(--space-5);
}

.page-news .fix-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .fix-list > li {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 20px;
  background: linear-gradient(180deg, var(--news-fix-bg), var(--news-fix-bg-soft));
  border: 1px solid var(--hairline-light);
  border-radius: var(--radius-md);
}

.page-news .fix-list__check {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--signal-100);
  color: var(--abyss-900);
}

.page-news .fix-list__check svg {
  display: block;
  width: 14px;
  height: 14px;
}

.page-news .fix-list h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--abyss-900);
}

.page-news .fix-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--chart-600);
}

/* ---------- 收尾 ---------- */
.page-news .news-next {
  padding-block: var(--space-5) var(--space-6);
}

.page-news .news-next__band {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--abyss-700);
  color: var(--paper-50);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

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

.page-news .news-next__copy h2 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.3;
  color: var(--paper-50);
}

.page-news .news-next__copy p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--signal-100);
}

.page-news .news-next__links {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-next__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--hairline-dark);
  border-radius: var(--radius-sm);
  color: var(--paper-50);
  font-size: 14.5px;
  text-decoration: none;
  transition: background-color .2s var(--ease-out), border-color .2s var(--ease-out);
}

.page-news .news-next__links a:hover,
.page-news .news-next__links a:focus-visible {
  border-color: var(--signal-500);
  background: rgba(35, 224, 196, .12);
}

.page-news .news-next__links span {
  color: var(--signal-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .news-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: var(--space-4);
  }

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

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

@media (min-width: 960px) {
  .page-news .news-board__grid {
    grid-template-columns: minmax(250px, 4fr) minmax(0, 8fr);
    gap: var(--space-5);
  }

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

  .page-news .news-versions__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-5);
  }

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

  .page-news .news-next__band {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .log-card,
  .page-news .news-rail__tabs a,
  .page-news .news-next__links a,
  .page-news .news-rail__hint {
    transition: none;
  }

  .page-news .log-card:hover,
  .page-news .news-rail__tabs a:hover,
  .page-news .news-rail__tabs a:focus-visible {
    transform: none;
  }
}