.page-news {
  --news-card: #FBF7ED;
  --news-rail-gap: 1.15rem;
  background: var(--paper);
  color: var(--ink);
}

/* 面包屑条 */
.page-news .news-breadcrumb-bar {
  padding-block: clamp(0.9rem, 2.2vw, 1.3rem) 0;
}

.page-news .news-breadcrumb-bar .breadcrumb {
  font-size: 0.82rem;
}

/* 首屏 */
.page-news .news-masthead {
  position: relative;
  margin-top: clamp(0.8rem, 2vw, 1.3rem);
  background:
    radial-gradient(120% 90% at 6% -12%, rgba(47, 107, 90, 0.96) 0%, rgba(23, 72, 59, 0.99) 54%, #0e2a21 100%);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
}

.page-news .news-masthead::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -62%;
  width: min(62vw, 520px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px solid var(--line-gold);
  box-shadow:
    0 0 0 40px rgba(201, 162, 39, 0.06),
    0 0 0 84px rgba(201, 162, 39, 0.035);
  pointer-events: none;
  z-index: -1;
}

.page-news .masthead-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.6rem);
  padding-block: clamp(1.9rem, 5vw, 3.4rem);
}

.page-news .masthead-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--gold-bright);
}

.page-news .masthead-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--gold);
}

.page-news .masthead-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 6.6vw, 3.5rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .masthead-lede {
  max-width: 44ch;
  margin: 1rem 0 0;
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  line-height: 1.85;
  color: rgba(247, 242, 231, 0.82);
}

.page-news .masthead-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  color: rgba(247, 242, 231, 0.72);
}

.page-news .masthead-facts .mono {
  margin-right: 0.4rem;
  color: var(--gold-bright);
  font-size: 0.82rem;
}

.page-news .masthead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.6rem;
}

.page-news .masthead-media {
  margin: 0;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-organic);
  overflow: hidden;
  background: rgba(247, 242, 231, 0.06);
}

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

/* 栏目索引条 */
.page-news .news-toc {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: rgba(247, 242, 231, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.page-news .news-toc ul {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0.7rem 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .news-toc ul::-webkit-scrollbar {
  display: none;
}

.page-news .news-toc a {
  display: inline-block;
  padding: 0.32rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news .news-toc a:hover,
.page-news .news-toc a:focus-visible {
  border-color: var(--gold);
  color: var(--copper-deep);
}

/* 章节通用 */
.page-news .news-block {
  padding-block: clamp(2.2rem, 6vw, 3.9rem);
}

.page-news .news-block--mint {
  background: linear-gradient(180deg, rgba(217, 231, 223, 0.62) 0%, rgba(217, 231, 223, 0) 100%);
}

.page-news .news-block__head {
  max-width: 62ch;
  margin: 0 0 clamp(1.3rem, 3.5vw, 2.1rem);
  padding-top: 0.9rem;
  border-top: 1px solid var(--line-gold);
}

.page-news .news-block__no {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
}

.page-news .news-block__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 4.2vw, 2.05rem);
  font-weight: 500;
  line-height: 1.32;
  color: var(--copper-deep);
}

.page-news .news-block__intro {
  margin: 0.7rem 0 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--stone);
}

/* 报告列表 */
.page-news .report-rail {
  position: relative;
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: 0 0 0 var(--news-rail-gap);
  list-style: none;
}

.page-news .report-rail::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(201, 162, 39, 0.28) 62%, rgba(201, 162, 39, 0) 100%);
}

.page-news .report-item {
  position: relative;
}

.page-news .report-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--news-rail-gap));
  top: 1.3rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px var(--paper);
}

.page-news .report-item details {
  background: var(--news-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-news .report-item details:hover {
  border-color: var(--line-gold);
  box-shadow: var(--shadow-lift);
}

.page-news .report-item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.6rem;
  padding: 0.85rem 0.95rem;
  cursor: pointer;
  list-style: none;
}

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

.page-news .report-item summary:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.page-news .report-period {
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--stone);
}

.page-news .report-tag {
  padding: 0.1rem 0.5rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.68rem;
  line-height: 1.7;
}

.page-news .report-tag--release {
  color: var(--copper);
}

.page-news .report-tag--index {
  color: var(--gold-deep);
}

.page-news .report-tag--billing {
  color: var(--cinnabar);
}

.page-news .report-tag--case {
  color: var(--patina);
}

.page-news .report-tag--archive {
  color: var(--stone);
}

.page-news .report-title {
  flex: 1 1 100%;
  font-size: 0.96rem;
  line-height: 1.62;
  color: var(--ink);
}

.page-news .report-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin-left: auto;
  align-self: center;
}

.page-news .report-toggle::before,
.page-news .report-toggle::after {
  content: "";
  position: absolute;
  background: var(--copper);
  border-radius: 1px;
}

.page-news .report-toggle::before {
  left: 0;
  right: 0;
  top: 6.5px;
  height: 2px;
}

.page-news .report-toggle::after {
  top: 0;
  bottom: 0;
  left: 6.5px;
  width: 2px;
  transition: transform 0.22s var(--ease);
}

.page-news .report-item details[open] .report-toggle::after {
  transform: scaleY(0);
}

.page-news .report-body {
  padding: 0 0.95rem 0.95rem;
  border-top: 1px dashed var(--line);
  margin-top: 0.15rem;
  padding-top: 0.7rem;
}

.page-news .report-body p {
  margin: 0 0 0.55rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .report-body p:last-child {
  margin-bottom: 0;
}

/* 测试版索引 */
.page-news .beta-grid {
  display: grid;
  gap: clamp(1.3rem, 4vw, 2.2rem);
}

.page-news .beta-figure {
  margin: 0;
  border-radius: var(--radius-organic);
  overflow: hidden;
}

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

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

.page-news .beta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.7rem;
  padding: 0.68rem 0.3rem;
  border-bottom: 1px solid var(--line);
}

.page-news .beta-row:nth-child(odd) {
  background: rgba(247, 242, 231, 0.6);
}

.page-news .beta-issue {
  font-size: 0.74rem;
  color: var(--copper-deep);
}

.page-news .beta-when {
  padding: 0.02rem 0.45rem;
  border: 1px solid var(--line-gold);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--gold-deep);
}

.page-news .beta-text {
  flex: 1 1 100%;
  font-size: 0.89rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* 专题系列 */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.15rem 1.05rem 1.25rem;
  background: var(--news-card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius-organic);
}

.page-news .topic-card:nth-child(1) {
  border-top-color: var(--copper);
}

.page-news .topic-card:nth-child(3) {
  border-top-color: var(--cinnabar);
}

.page-news .topic-count {
  margin: 0;
  font-size: 1.5rem;
  line-height: 1.1;
  color: var(--copper-deep);
}

.page-news .topic-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
}

.page-news .topic-desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.78;
  color: var(--stone);
}

.page-news .topic-latest {
  margin: auto 0 0;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  line-height: 1.6;
  color: var(--copper);
}

/* 版本差异 */
.page-news .diff-grid {
  display: grid;
  gap: clamp(1.3rem, 4vw, 2.2rem);
}

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

.page-news .diff-row {
  display: grid;
  gap: 0.15rem;
  padding: 0.72rem 0.2rem;
  border-bottom: 1px solid var(--line);
}

.page-news .diff-ver {
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--cinnabar);
}

.page-news .diff-text {
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-news .diff-figure {
  margin: 0;
  border-radius: var(--radius-organic);
  overflow: hidden;
}

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

.page-news .diff-more {
  margin: 1.2rem 0 0;
}

.page-news .diff-more__link {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--gold);
  font-size: 0.86rem;
  color: var(--copper);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .diff-more__link:hover,
.page-news .diff-more__link:focus-visible {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

/* 归档维护 */
.page-news .archive-panel {
  display: grid;
  background: var(--copper-deep);
  border-radius: var(--radius-organic);
  overflow: hidden;
}

.page-news .archive-figure {
  margin: 0;
  min-height: 200px;
}

.page-news .archive-figure img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
}

.page-news .archive-copy {
  padding: clamp(1.3rem, 4.5vw, 2.4rem);
  color: rgba(247, 242, 231, 0.82);
}

.page-news .archive-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3.8vw, 1.75rem);
  font-weight: 500;
  line-height: 1.38;
  color: var(--paper);
}

.page-news .archive-copy p {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  line-height: 1.85;
}

.page-news .archive-link {
  display: inline-block;
  margin-top: 0.35rem;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-gold);
  font-size: 0.86rem;
  color: var(--gold-bright);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .archive-link:hover,
.page-news .archive-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* 订阅与提醒 */
.page-news .subscribe-panel {
  padding: clamp(1.3rem, 4.5vw, 2.4rem);
  background: var(--news-card);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-organic);
}

.page-news .subscribe-title {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 3.9vw, 1.8rem);
  font-weight: 500;
  line-height: 1.38;
  color: var(--copper-deep);
}

.page-news .subscribe-text {
  margin: 0 0 1rem;
  max-width: 60ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .subscribe-mail {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--cinnabar);
  word-break: break-all;
}

.page-news .subscribe-note {
  margin: 0 0 1.2rem;
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--stone);
}

.page-news .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* 断点 */
@media (min-width: 620px) {
  .page-news .beta-text {
    flex: 1 1 auto;
  }

  .page-news .diff-row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: 0.2rem 0.9rem;
    align-items: baseline;
  }

  .page-news .topic-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-news .masthead-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    padding-block: clamp(2.4rem, 5vw, 3.8rem);
  }

  .page-news .beta-grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-news .diff-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .archive-panel {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: stretch;
  }

  .page-news .archive-figure,
  .page-news .archive-figure img {
    min-height: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .report-toggle::after,
  .page-news .news-toc a,
  .page-news .report-item details,
  .page-news .diff-more__link,
  .page-news .archive-link {
    transition: none;
  }
}