.page-news {
  --news-hero-height: 280px;
  --card-bg: rgba(42, 42, 46, 0.85);
  --card-border: rgba(57, 255, 20, 0.12);
  --card-hover-border: rgba(57, 255, 20, 0.35);
  --insight-card-min-width: 260px;
  --scroll-card-min-width: 240px;
  display: block;
  width: 100%;
  max-width: 100%;
  padding: 0;
  margin: 0;
  background-color: var(--color-bg, #0a192f);
  color: var(--color-text, #f5f5dc);
  font-family: var(--font-heading, 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif);
}

/* === 面包屑 === */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 16px 20px 0;
  font-size: 13px;
  color: var(--color-text, #f5f5dc);
  opacity: 0.7;
}

.page-news .breadcrumb a {
  color: var(--color-accent, #39ff14);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-news .breadcrumb a:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.page-news .breadcrumb-sep {
  color: var(--color-gold, #ffd700);
  font-size: 12px;
  opacity: 0.6;
}

/* === 头部 === */
.page-news .news-hero {
  position: relative;
  width: 100%;
  height: var(--news-hero-height);
  overflow: hidden;
  margin-bottom: 32px;
}

.page-news .news-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}

.page-news .news-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 25, 47, 0.88) 0%, rgba(10, 25, 47, 0.55) 60%, rgba(10, 25, 47, 0.30) 100%);
  z-index: 1;
}

.page-news .news-hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  height: 100%;
  padding: 0 24px;
  max-width: 720px;
}

.page-news .news-hero-title {
  font-family: var(--font-heading, 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  font-weight: 800;
  font-stretch: expanded;
  font-size: clamp(1.75rem, 5.5vw, 3rem);
  letter-spacing: -0.02em;
  color: var(--color-text-white, #ffffff);
  margin: 0 0 6px;
  text-transform: uppercase;
  line-height: 1.1;
}

.page-news .news-hero-sub {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--color-accent, #39ff14);
  margin: 0;
  opacity: 0.9;
  letter-spacing: 0.01em;
}

/* === 章节通用 === */
.page-news .news-section {
  padding: 28px 20px 36px;
  max-width: 1120px;
  margin: 0 auto;
}

.page-news .section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--color-border, rgba(57, 255, 20, 0.15));
  padding-bottom: 12px;
}

.page-news .section-index {
  font-family: var(--font-mono, 'Roboto Condensed', 'SF Mono', monospace);
  font-size: 0.85rem;
  color: var(--color-gold, #ffd700);
  opacity: 0.7;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.page-news .section-title {
  font-family: var(--font-heading, 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  font-weight: 800;
  font-stretch: expanded;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  letter-spacing: -0.02em;
  color: var(--color-text-white, #ffffff);
  margin: 0;
  line-height: 1.2;
}

/* === 近期动态 - 横向滚动卡片 === */
.page-news .scroll-cards {
  display: flex;
  flex-wrap: nowrap;
  gap: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  padding: 4px 0 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent, #39ff14) var(--color-bg-secondary, #2a2a2e);
}

.page-news .scroll-cards::-webkit-scrollbar {
  height: 4px;
}

.page-news .scroll-cards::-webkit-scrollbar-track {
  background: var(--color-bg-secondary, #2a2a2e);
  border-radius: 2px;
}

.page-news .scroll-cards::-webkit-scrollbar-thumb {
  background: var(--color-accent, #39ff14);
  border-radius: 2px;
}

.page-news .dynamic-card {
  flex: 0 0 calc(100% - 32px);
  min-width: var(--scroll-card-min-width);
  scroll-snap-align: start;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md, 4px);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  cursor: default;
}

.page-news .dynamic-card:hover {
  border-color: var(--card-hover-border);
  box-shadow: 0 0 0 1px rgba(57, 255, 20, 0.08), var(--shadow-card, 0 2px 12px rgba(0,0,0,0.4));
}

.page-news .dynamic-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s;
}

.page-news .dynamic-card-header:hover {
  background-color: rgba(57, 255, 20, 0.04);
}

.page-news .dynamic-card-title {
  font-family: var(--font-heading, 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-white, #ffffff);
  margin: 0;
  line-height: 1.3;
}

.page-news .expand-icon {
  font-family: var(--font-mono, 'Roboto Condensed', 'SF Mono', monospace);
  font-size: 1.2rem;
  color: var(--color-accent, #39ff14);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  line-height: 1;
}

.page-news .dynamic-card[data-expandable="expanded"] .expand-icon {
  transform: rotate(45deg);
}

.page-news .dynamic-card-body {
  padding: 0 18px 16px;
}

.page-news .dynamic-card-body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text, #f5f5dc);
}

.page-news .dynamic-card-body[hidden] {
  display: none;
}

/* === 数据观察 - 网格 === */
.page-news .insight-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news .insight-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md, 4px);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  cursor: default;
}

.page-news .insight-card:hover {
  border-color: var(--card-hover-border);
  box-shadow: 0 0 0 1px rgba(57, 255, 20, 0.06), var(--shadow-card, 0 2px 12px rgba(0,0,0,0.4));
}

.page-news .insight-thumb {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  max-height: 180px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid var(--color-border-light, rgba(245, 245, 220, 0.1));
}

.page-news .insight-content {
  padding: 16px 18px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-news .insight-title {
  font-family: var(--font-heading, 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text-white, #ffffff);
  margin: 0 0 8px;
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1.3;
}

.page-news .insight-title:hover {
  color: var(--color-accent, #39ff14);
}

.page-news .insight-summary p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--color-text, #f5f5dc);
}

.page-news .insight-summary[hidden] {
  display: none;
}

/* === 内容索引 === */
.page-news .index-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-news .index-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md, 4px);
  transition: border-color 0.25s ease, background-color 0.2s;
}

.page-news .index-item:hover {
  border-color: var(--card-hover-border);
  background-color: rgba(57, 255, 20, 0.03);
}

.page-news .index-icon-wrap {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(57, 255, 20, 0.08);
  border-radius: var(--radius-sm, 2px);
}

.page-news .index-icon {
  width: 30px;
  height: 30px;
  object-fit: contain;
  display: block;
}

.page-news .index-info {
  flex: 1;
  min-width: 0;
}

.page-news .index-category {
  font-family: var(--font-heading, 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-white, #ffffff);
  margin: 0 0 4px;
  line-height: 1.3;
}

.page-news .index-desc {
  font-size: 0.85rem;
  color: var(--color-text, #f5f5dc);
  margin: 0 0 8px;
  line-height: 1.5;
  opacity: 0.8;
}

.page-news .index-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent, #39ff14);
  text-decoration: none;
  transition: opacity 0.2s;
}

.page-news .index-link:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.page-news .index-link .mono {
  font-family: var(--font-mono, 'Roboto Condensed', 'SF Mono', monospace);
  color: var(--color-gold, #ffd700);
  font-size: 0.9rem;
}

/* === 工具类 === */
.page-news .mono {
  font-family: var(--font-mono, 'Roboto Condensed', 'SF Mono', monospace);
}

/* === 桌面端 (≥768px) === */
@media (min-width: 768px) {
  .page-news .breadcrumb {
    padding: 20px 32px 0;
    font-size: 14px;
  }

  .page-news .news-hero {
    --news-hero-height: 360px;
    margin-bottom: 40px;
  }

  .page-news .news-hero-content {
    padding: 0 48px;
  }

  .page-news .news-section {
    padding: 36px 32px 48px;
  }

  .page-news .section-head {
    margin-bottom: 32px;
    padding-bottom: 14px;
  }

  /* 横向滚动卡片：桌面端显示更多卡片 */
  .page-news .scroll-cards {
    gap: 20px;
    padding: 4px 0 16px;
  }

  .page-news .dynamic-card {
    flex: 0 0 calc(50% - 10px);
    max-width: 360px;
  }

  .page-news .dynamic-card-header {
    padding: 18px 22px;
  }

  .page-news .dynamic-card-body {
    padding: 0 22px 18px;
  }

  /* 数据观察网格：两列 */
  .page-news .insight-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-news .insight-thumb {
    max-height: 150px;
    aspect-ratio: auto;
    height: auto;
  }

  .page-news .insight-content {
    padding: 20px 22px 22px;
  }

  .page-news .insight-title {
    font-size: 1.1rem;
  }

  /* 内容索引：三列 */
  .page-news .index-list {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
  }

  .page-news .index-item {
    flex-direction: column;
    padding: 22px 20px;
  }

  .page-news .index-icon-wrap {
    width: 40px;
    height: 40px;
  }

  .page-news .index-category {
    font-size: 1.05rem;
  }
}

/* === 大桌面端 (≥1024px) === */
@media (min-width: 1024px) {
  .page-news .news-hero {
    --news-hero-height: 400px;
  }

  .page-news .news-hero-content {
    padding: 0 64px;
  }

  .page-news .news-section {
    padding: 40px 40px 56px;
  }

  .page-news .dynamic-card {
    flex: 0 0 calc(33.333% - 14px);
    max-width: 340px;
  }

  .page-news .insight-grid {
    gap: 28px;
  }

  .page-news .index-list {
    gap: 24px;
  }
}

/* === 确保所有图片响应式 === */
.page-news img {
  max-width: 100%;
  height: auto;
}

/* === 去除可能的溢出 === */
.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}