.page-news {
  --_gap: 2rem;
  --_radius: 8px;
  --_cut-angle: 6px;
  --_card-bg: var(--color-surface, #2D1B1B);
  --_border-glow: 0 0 0 1px var(--color-gold-dark, #B8860B);
  --_shadow-card: 0 4px 20px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding: 1.5rem 1rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
  color: var(--color-text, #F5E6CC);
  font-family: var(--font-body, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif);
}

/* 面包屑 */
.page-news__crumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted, #C4A882);
  padding: 0.5rem 0;
}
.page-news__crumb a {
  color: var(--color-gold, #D4A017);
  text-decoration: none;
  transition: color var(--transition-speed, 0.25s);
}
.page-news__crumb a:focus-visible,
.page-news__crumb a:hover {
  color: var(--color-gold-light, #F0C040);
  outline: 2px solid var(--color-gold, #D4A017);
  outline-offset: 2px;
}
.page-news__crumb-sep {
  color: var(--color-border, #4A2828);
  user-select: none;
}

/* 首屏标题区 */
.page-news__hero {
  padding: 2rem 0 1rem;
  border-bottom: 2px solid var(--color-border, #4A2828);
}
.page-news__hero-title {
  font-family: var(--font-heading, 'STKaiti', 'KaiTi', 'PingFang SC', serif);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-gold-light, #F0C040);
  margin: 0 0 0.5rem;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, #D4A017, #F0C040);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-news__hero-sub {
  font-size: 1.125rem;
  color: var(--color-text-muted, #C4A882);
  margin: 0;
  letter-spacing: 0.08em;
}

/* 章节通用 */
.page-news__section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.page-news__section-lead {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.page-news__section-lead .section-number {
  font-family: var(--font-heading, 'STKaiti', 'KaiTi', 'PingFang SC', serif);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-gold-dark, #B8860B);
  letter-spacing: -0.02em;
}
.page-news__section-title {
  font-family: var(--font-heading, 'STKaiti', 'KaiTi', 'PingFang SC', serif);
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-text, #F5E6CC);
  line-height: 1.2;
}
.page-news__section-title--alone {
  font-size: 2rem;
  color: var(--color-gold-light, #F0C040);
  background: linear-gradient(135deg, #D4A017, #F0C040);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-news__section-desc {
  font-size: 1rem;
  color: var(--color-text-muted, #C4A882);
  margin: 0 0 0.25rem;
  max-width: 640px;
  line-height: 1.5;
}

/* 卡片网格 */
.page-news__grid {
  display: grid;
  gap: var(--_gap, 2rem);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .page-news__grid--cols2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news__grid--cols3 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .page-news__grid--cols3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news__grid--cols2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
  }
}

/* 资料卡（档案架风格） */
.page-news__card {
  display: flex;
  flex-direction: column;
  background: var(--_card-bg, #2D1B1B);
  border: 1px solid var(--color-gold-dark, #B8860B);
  clip-path: polygon(
    0 var(--_cut-angle, 6px),
    var(--_cut-angle, 6px) 0,
    calc(100% - var(--_cut-angle, 6px)) 0,
    100% var(--_cut-angle, 6px),
    100% calc(100% - var(--_cut-angle, 6px)),
    calc(100% - var(--_cut-angle, 6px)) 100%,
    var(--_cut-angle, 6px) 100%,
    0 calc(100% - var(--_cut-angle, 6px))
  );
  box-shadow: var(--_shadow-card, 0 4px 20px rgba(0, 0, 0, 0.5));
  transition: transform var(--transition-speed, 0.25s), box-shadow var(--transition-speed, 0.25s);
  overflow: hidden;
  cursor: default;
}
.page-news__card:focus-visible {
  outline: 2px solid var(--color-gold, #D4A017);
  outline-offset: 4px;
}
.page-news__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(212, 160, 23, 0.2), 0 4px 20px rgba(0, 0, 0, 0.5);
}
.page-news__card-img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--color-border, #4A2828);
  background: var(--color-surface-light, #3D2525);
}
.page-news__card-body {
  padding: 1rem 1.125rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.page-news__card-body .tag {
  align-self: flex-start;
  font-size: 0.75rem;
  padding: 0.2rem 0.75rem;
  border-radius: 2px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
}
.page-news__card-title {
  font-family: var(--font-heading, 'STKaiti', 'KaiTi', 'PingFang SC', serif);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
  color: var(--color-text, #F5E6CC);
  transition: color var(--transition-speed, 0.25s), transform var(--transition-speed, 0.25s);
  transform-origin: left center;
}
.page-news__card:hover .page-news__card-title,
.page-news__card:focus-within .page-news__card-title {
  color: var(--color-gold-light, #F0C040);
  transform: scale(1.03);
}
.page-news__card-desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-text-muted, #C4A882);
  margin: 0;
}

/* 内容索引 */
.page-news__index-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
  padding-top: 0.5rem;
}
@media (min-width: 640px) {
  .page-news__index-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.page-news__index-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--_card-bg, #2D1B1B);
  border: 1px solid var(--color-border, #4A2828);
  clip-path: polygon(
    0 var(--_cut-angle, 6px),
    var(--_cut-angle, 6px) 0,
    calc(100% - var(--_cut-angle, 6px)) 0,
    100% var(--_cut-angle, 6px),
    100% calc(100% - var(--_cut-angle, 6px)),
    calc(100% - var(--_cut-angle, 6px)) 100%,
    var(--_cut-angle, 6px) 100%,
    0 calc(100% - var(--_cut-angle, 6px))
  );
  padding: 1.25rem 1.25rem 1.5rem;
  transition: border-color var(--transition-speed, 0.25s), box-shadow var(--transition-speed, 0.25s);
}
.page-news__index-item:hover {
  border-color: var(--color-gold-dark, #B8860B);
  box-shadow: 0 0 0 1px var(--color-gold-dark, #B8860B);
}
.page-news__index-item:focus-within {
  outline: 2px solid var(--color-gold, #D4A017);
  outline-offset: 2px;
}
.page-news__index-icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  flex-shrink: 0;
  background: var(--color-surface-light, #3D2525);
  border-radius: 4px;
  padding: 4px;
}
.page-news__index-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}
.page-news__index-label {
  font-family: var(--font-heading, 'STKaiti', 'KaiTi', 'PingFang SC', serif);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-text, #F5E6CC);
  line-height: 1.3;
}
.page-news__index-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted, #C4A882);
  margin: 0;
  line-height: 1.5;
}
.page-news__index-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gold, #D4A017);
  text-decoration: none;
  transition: color var(--transition-speed, 0.25s);
  margin-top: 0.25rem;
}
.page-news__index-link:focus-visible,
.page-news__index-link:hover {
  color: var(--color-gold-light, #F0C040);
  text-decoration: underline;
}

/* 内部导航（延伸阅读） */
.page-news__internal-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding: 1.5rem 0 0.5rem;
  border-top: 1px solid var(--color-border, #4A2828);
  margin-top: 1rem;
}
.page-news__internal-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted, #C4A882);
  letter-spacing: 0.04em;
}
.page-news__internal-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-gold, #D4A017);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border-radius: 2px;
  transition: color var(--transition-speed, 0.25s), background var(--transition-speed, 0.25s);
}
.page-news__internal-link:focus-visible,
.page-news__internal-link:hover {
  color: #fff;
  background: var(--color-gold-dark, #B8860B);
  outline: none;
}

/* 移动端间距优化 */
@media (max-width: 480px) {
  .page-news {
    padding: 1rem 0.75rem 2rem;
    gap: 2rem;
  }
  .page-news__hero-title {
    font-size: 2.25rem;
  }
  .page-news__hero {
    padding: 1.25rem 0 0.75rem;
  }
  .page-news__section-title {
    font-size: 1.5rem;
  }
  .page-news__section-lead .section-number {
    font-size: 2rem;
  }
  .page-news__card-body {
    padding: 0.75rem 0.875rem 1rem;
  }
  .page-news__card-title {
    font-size: 1rem;
  }
  .page-news__index-item {
    padding: 1rem;
  }
  .page-news__internal-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* 桌面端额外留白与字号提升 */
@media (min-width: 1024px) {
  .page-news {
    padding: 2rem 2.5rem 4rem;
    gap: 4rem;
  }
  .page-news__hero-title {
    font-size: 4rem;
  }
  .page-news__hero {
    padding: 2.5rem 0 1.5rem;
  }
  .page-news__section-lead .section-number {
    font-size: 3.25rem;
  }
  .page-news__section-title {
    font-size: 2rem;
  }
  .page-news__card-title {
    font-size: 1.25rem;
  }
  .page-news__card-body {
    padding: 1.25rem 1.5rem 1.5rem;
  }
}
@media (min-width: 1200px) {
  .page-news__hero-title {
    font-size: 4.5rem;
  }
}
</main>