.page-news {
  --news-banner-height: 340px;
  --news-card-radius: 6px;
  --news-tag-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --news-body-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --news-heading-font: Georgia, 'Times New Roman', serif;
  --news-gold-line-height: 4px;
  --news-card-min-height: 280px;

  display: block;
  width: 100%;
  max-width: var(--max-content, 1200px);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  background-color: var(--color-cream, #F5F0EB);
  color: var(--color-dark-brown, #2B1D14);
  font-family: var(--news-body-font);
  box-sizing: border-box;
}

/* 移动端优先基础 */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--color-deep-blue, #1A365D);
  padding: 1.25rem 0 0.5rem;
  border-bottom: 1px solid var(--color-light-gray, #E8E4DF);
  margin-bottom: 2rem;
}
.page-news .breadcrumb a {
  color: var(--color-deep-blue, #1A365D);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--color-red-orange, #D94F30);
}
.page-news .breadcrumb-sep {
  color: var(--color-light-gray, #E8E4DF);
  font-size: 0.75rem;
}
.page-news .breadcrumb-current {
  color: var(--color-dark-brown, #2B1D14);
  font-weight: 500;
}

/* Banner 区域 */
.page-news .news-banner {
  position: relative;
  width: 100%;
  height: var(--news-banner-height);
  border-radius: var(--radius-md, 8px);
  overflow: hidden;
  margin-bottom: 0.75rem;
  background-color: var(--color-dark-brown, #2B1D14);
}
.page-news .news-banner-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.page-news .news-banner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news .news-banner-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: 2rem 2.5rem;
  background: linear-gradient(to top, rgba(43,29,20,0.75) 0%, rgba(43,29,20,0.15) 60%, transparent 100%);
}
.page-news .news-banner-title {
  font-family: var(--news-heading-font);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-white, #FFFFFF);
  margin: 0 0 0.35rem;
  text-shadow: 0 2px 8px rgba(43,29,20,0.4);
}
.page-news .news-banner-subtitle {
  font-family: var(--news-tag-font);
  font-size: 0.9375rem;
  font-weight: 300;
  color: var(--color-gold, #C9A96E);
  letter-spacing: 0.04em;
  margin: 0;
  text-shadow: 0 1px 4px rgba(43,29,20,0.3);
}

/* 通用 section 样式 */
.page-news .news-section {
  margin-bottom: 2.5rem;
}
.page-news .section-header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-dark-brown, #2B1D14);
  padding-bottom: 0.5rem;
}
.page-news .section-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--color-red-orange, #D94F30);
  border-radius: 50%;
  padding: 2px;
}
.page-news .section-icon img {
  width: 18px;
  height: 18px;
  display: block;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.page-news .section-title {
  font-family: var(--news-heading-font);
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-dark-brown, #2B1D14);
  margin: 0;
}

/* 分割线 */
.page-news .section-divider {
  border: none;
  height: 1px;
  background: var(--color-light-gray, #E8E4DF);
  margin: 2.25rem 0;
}

/* 卡片网格 */
.page-news .news-card-grid {
  display: grid;
  gap: 1.5rem;
}
.page-news .grid-2 {
  grid-template-columns: 1fr;
}
.page-news .grid-3 {
  grid-template-columns: 1fr;
}

/* 文章卡片 */
.page-news .news-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white, #FFFFFF);
  border: var(--border-thin, 1px solid #E8E4DF);
  border-radius: var(--news-card-radius);
  box-shadow: var(--shadow-card, 0 2px 8px rgba(43,29,20,0.06));
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  cursor: default;
  min-height: var(--news-card-min-height);
  overflow: hidden;
}
.page-news .news-card:hover {
  box-shadow: var(--shadow-card-hover, 0 6px 20px rgba(43,29,20,0.1));
  transform: translateY(-2px);
}
.page-news .news-card:focus-visible {
  outline: 2px solid var(--color-red-orange, #D94F30);
  outline-offset: 2px;
}
.page-news .news-card-image {
  width: 100%;
  height: 160px;
  overflow: hidden;
  flex-shrink: 0;
}
.page-news .news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.page-news .news-card:hover .news-card-image img {
  transform: scale(1.03);
}
.page-news .news-card-body {
  padding: 1rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.page-news .news-tag {
  display: inline-block;
  font-family: var(--news-tag-font);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
  margin-bottom: 0.6rem;
  align-self: flex-start;
  color: var(--color-white, #FFFFFF);
}
.page-news .tag-update {
  background-color: var(--color-red-orange, #D94F30);
}
.page-news .tag-guide {
  background-color: var(--color-deep-blue, #1A365D);
}
.page-news .tag-observe {
  background-color: var(--color-dark-brown, #2B1D14);
}
.page-news .news-card-title {
  font-family: var(--news-heading-font);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-dark-brown, #2B1D14);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}
.page-news .news-card-summary {
  font-family: var(--news-body-font);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-dark-brown, #2B1D14);
  line-height: 1.55;
  margin: 0 0 0.6rem;
  flex: 1;
}
.page-news .news-card-expand {
  display: none;
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-light-gray, #E8E4DF);
}
.page-news .news-card[aria-expanded="true"] .news-card-expand {
  display: block;
}
.page-news .news-card-detail {
  font-family: var(--news-body-font);
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-dark-brown, #2B1D14);
  line-height: 1.6;
  margin: 0;
}
.page-news .guide-steps {
  margin: 0.5rem 0 0;
  padding-left: 1.25rem;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--color-dark-brown, #2B1D14);
}
.page-news .guide-steps li {
  margin-bottom: 0.3rem;
}

/* 引导区 */
.page-news .news-cta-section {
  background-color: var(--color-light-gray, #E8E4DF);
  border-radius: var(--radius-md, 8px);
  padding: 1.5rem 2rem;
  margin: 1rem 0 1.5rem;
  text-align: center;
}
.page-news .cta-text {
  font-family: var(--news-body-font);
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-dark-brown, #2B1D14);
  margin: 0;
}
.page-news .cta-link {
  color: var(--color-deep-blue, #1A365D);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}
.page-news .cta-link:hover,
.page-news .cta-link:focus-visible {
  color: var(--color-red-orange, #D94F30);
}

/* 底部装饰 */
.page-news .news-bottom-deco {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
  padding-top: 0.5rem;
}
.page-news .news-bottom-deco img {
  max-width: 100%;
  height: auto;
  display: block;
  opacity: 0.6;
}

/* 桌面端 ≥768px */
@media (min-width: 768px) {
  .page-news {
    padding: 0 2rem 3.5rem;
  }
  .page-news .news-banner {
    height: 400px;
  }
  .page-news .news-banner-title {
    font-size: 3rem;
  }
  .page-news .news-banner-subtitle {
    font-size: 1.0625rem;
  }
  .page-news .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
  .page-news .grid-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .page-news .news-card {
    min-height: 320px;
  }
  .page-news .news-card-image {
    height: 180px;
  }
  .page-news .section-title {
    font-size: 1.75rem;
  }
  .page-news .news-cta-section {
    padding: 2rem 3rem;
  }
}

/* 大桌面 ≥1024px */
@media (min-width: 1024px) {
  .page-news {
    padding: 0 2.5rem 4rem;
  }
  .page-news .news-banner {
    height: 440px;
    border-radius: var(--radius-md, 8px);
  }
  .page-news .news-banner-title {
    font-size: 3.5rem;
  }
  .page-news .news-banner-overlay {
    padding: 2.5rem 3.5rem;
  }
  .page-news .news-card-title {
    font-size: 1.2rem;
  }
}

/* 防止窄屏溢出 */
@media (max-width: 380px) {
  .page-news {
    padding: 0 0.75rem 2rem;
  }
  .page-news .news-banner {
    height: 240px;
  }
  .page-news .news-banner-title {
    font-size: 1.5rem;
  }
  .page-news .news-banner-subtitle {
    font-size: 0.8125rem;
  }
  .page-news .news-card-image {
    height: 130px;
  }
  .page-news .news-card-body {
    padding: 0.75rem 0.875rem 1rem;
  }
}