.page-news {
  display: block;
  width: 100%;
  max-width: 100%;
  background: var(--c-bg, #0B0C10);
  color: var(--c-text, #EAEAEA);
  --page-news-gap: clamp(1.5rem, 4vw, 3rem);
  --page-news-radius: var(--radius-md, 8px);
}

/* ===== 面包屑 ===== */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-top: 1rem;
  padding-bottom: 0.5rem;
  font-size: 0.85rem;
  font-family: var(--font-body, 'Segoe UI', system-ui, sans-serif);
  color: var(--c-text-muted, #A0A0B0);
}
.page-news .breadcrumb a {
  color: var(--c-text-muted, #A0A0B0);
  text-decoration: none;
  transition: color 0.2s;
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  color: var(--c-secondary, #00FF87);
}
.page-news .breadcrumb .separator {
  color: var(--c-border, #2A2D3A);
  user-select: none;
}
.page-news .breadcrumb [aria-current="page"] {
  color: var(--c-text, #EAEAEA);
  font-weight: 600;
}

/* ===== 页面标题区 ===== */
.page-news-header {
  padding-top: clamp(1.5rem, 5vw, 3.5rem);
  padding-bottom: clamp(0.5rem, 2vw, 1.5rem);
  border-bottom: 1px solid var(--c-border, #2A2D3A);
  margin-bottom: var(--page-news-gap);
}
.page-news-title {
  font-family: var(--font-heading, 'Exo 2', 'Orbitron', system-ui, sans-serif);
  font-size: clamp(2.2rem, 8vw, 5rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.05;
  margin: 0 0 0.35em 0;
  text-transform: uppercase;
}
.page-news-subtitle {
  font-family: var(--font-body, 'Segoe UI', system-ui, sans-serif);
  font-size: clamp(0.95rem, 2vw, 1.25rem);
  font-weight: 300;
  line-height: 1.6;
  color: var(--c-text-muted, #A0A0B0);
  margin: 0;
  max-width: 680px;
}

/* ===== 通用区块 ===== */
.page-news-block {
  margin-bottom: var(--page-news-gap);
  padding-top: clamp(0.5rem, 2vw, 1.5rem);
  padding-bottom: clamp(0.5rem, 2vw, 1.5rem);
  border-top: 1px solid var(--c-border, #2A2D3A);
}
.page-news-block .tag {
  display: inline-block;
  font-family: var(--font-data, 'Fira Code', monospace);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--c-secondary, #00FF87);
  color: var(--c-secondary, #00FF87);
  background: transparent;
  border-radius: var(--radius-sm, 4px);
  margin-bottom: 0.75rem;
}
.page-news-block-heading {
  font-family: var(--font-heading, 'Exo 2', 'Orbitron', system-ui, sans-serif);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin: 0 0 0.75rem 0;
  color: var(--c-text, #EAEAEA);
}

/* ===== 图文网格（左右布局） ===== */
.page-news-block-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--page-news-gap);
  align-items: start;
}
.page-news-block-grid-reverse {
  direction: rtl;
}
.page-news-block-grid-reverse > * {
  direction: ltr;
}
.page-news-block-content {
  min-width: 0;
}
.page-news-block-content p {
  margin: 0 0 0.75rem 0;
}
.page-news-block-media {
  min-width: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.page-news-img-portrait {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md, 8px);
  object-fit: cover;
  box-shadow: var(--shadow-glow, 0 0 20px rgba(138,45,226,0.25));
}
.page-news-img-wide {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md, 8px);
  object-fit: cover;
  box-shadow: var(--shadow-glow, 0 0 20px rgba(138,45,226,0.25));
}

/* ===== 高亮数据条 ===== */
.page-news-highlight {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--c-surface, #1F2232);
  border-left: 3px solid var(--c-secondary, #00FF87);
  border-radius: 0 var(--radius-sm, 4px) var(--radius-sm, 4px) 0;
}
.page-news-highlight .text-data {
  font-family: var(--font-data, 'Fira Code', monospace);
  font-size: 0.9rem;
  color: var(--c-secondary, #00FF87);
  letter-spacing: 0.02em;
  background: rgba(0,255,135,0.08);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm, 4px);
  white-space: nowrap;
}

/* ===== 图片占位宽幅 ===== */
.page-news-block-media-wide {
  margin-top: 1.5rem;
  width: 100%;
}
.page-news-img-landscape {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md, 8px);
  object-fit: cover;
  box-shadow: var(--shadow-glow, 0 0 20px rgba(138,45,226,0.25));
}

/* ===== 时间轴 ===== */
.page-news-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 1.5rem 0 1rem 0;
  position: relative;
  padding-left: 2rem;
}
.page-news-timeline::before {
  content: '';
  position: absolute;
  left: 0.6rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--gradient-primary, linear-gradient(135deg, #4A00E0, #8E2DE2));
  border-radius: 1px;
}
.page-news-timeline-node {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem 0;
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
  border-radius: var(--radius-sm, 4px);
  outline: none;
}
.page-news-timeline-node:hover,
.page-news-timeline-node:focus-visible {
  background: rgba(0,255,135,0.04);
}
.page-news-timeline-node:focus-visible {
  outline: 2px solid var(--c-secondary, #00FF87);
  outline-offset: 2px;
}
.page-news-timeline-dot {
  flex-shrink: 0;
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  background: var(--c-surface, #1F2232);
  border: 2px solid var(--c-primary-end, #8E2DE2);
  margin-top: 0.2rem;
  position: relative;
  z-index: 1;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.page-news-timeline-node[data-timeline]:hover .page-news-timeline-dot,
.page-news-timeline-node[data-timeline]:focus-visible .page-news-timeline-dot {
  background: var(--c-secondary, #00FF87);
  border-color: var(--c-secondary, #00FF87);
  box-shadow: var(--shadow-neon, 0 0 12px rgba(0,255,135,0.3));
}
.page-news-timeline-card {
  min-width: 0;
  flex: 1;
}
.page-news-timeline-heading {
  font-family: var(--font-heading, 'Exo 2', 'Orbitron', system-ui, sans-serif);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 0.2rem 0;
  color: var(--c-text, #EAEAEA);
}
.page-news-timeline-card p {
  margin: 0;
}
.page-news-timeline-note {
  margin-top: 0.5rem;
  font-style: italic;
}

/* ===== 侧边栏 ===== */
.page-news-sidebar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--page-news-gap);
  padding-top: var(--page-news-gap);
  padding-bottom: var(--page-news-gap);
  margin-top: var(--page-news-gap);
  border-top: 1px solid var(--c-border, #2A2D3A);
}
.page-news-sidebar-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--glass-bg, rgba(31,34,50,0.55));
  border: 1px solid var(--glass-border, rgba(255,255,255,0.08));
  border-radius: var(--radius-md, 8px);
  backdrop-filter: blur(4px);
}
.page-news-sidebar-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-neon, 0 0 12px rgba(0,255,135,0.3));
}
.page-news-sidebar-card p {
  margin: 0;
}
.page-news-sidebar-links {
  padding: 0;
}
.page-news-sidebar-links h3 {
  font-family: var(--font-heading, 'Exo 2', 'Orbitron', system-ui, sans-serif);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.5rem 0;
}
.page-news-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
}
.page-news-sidebar-list li {
  margin: 0;
  padding: 0;
}
.page-news-sidebar-list .nav-link {
  font-family: var(--font-body, 'Segoe UI', system-ui, sans-serif);
  font-size: 0.9rem;
  color: var(--c-text-muted, #A0A0B0);
  text-decoration: none;
  transition: color 0.2s;
  padding: 0.2rem 0;
}
.page-news-sidebar-list .nav-link:hover,
.page-news-sidebar-list .nav-link:focus-visible {
  color: var(--c-secondary, #00FF87);
}

/* ===== 响应式：移动端优先 ===== */
@media (max-width: 600px) {
  .page-news-header {
    padding-top: 1rem;
    padding-bottom: 0.75rem;
  }
  .page-news-title {
    font-size: 2rem;
  }
  .page-news-subtitle {
    font-size: 0.9rem;
  }
  .page-news-block-grid {
    grid-template-columns: 1fr;
  }
  .page-news-block-grid-reverse {
    direction: ltr;
  }
  .page-news-block-grid-reverse > * {
    direction: ltr;
  }
  .page-news-block-media {
    order: -1;
  }
  .page-news-img-portrait {
    max-width: 180px;
    margin: 0 auto;
  }
  .page-news-highlight {
    flex-direction: column;
    gap: 0.5rem;
  }
  .page-news-highlight .text-data {
    white-space: normal;
    word-break: break-word;
  }
  .page-news-timeline {
    padding-left: 1.5rem;
  }
  .page-news-timeline::before {
    left: 0.4rem;
  }
  .page-news-timeline-dot {
    width: 0.9rem;
    height: 0.9rem;
  }
  .page-news-timeline-heading {
    font-size: 0.9rem;
  }
  .page-news-sidebar {
    grid-template-columns: 1fr;
  }
  .page-news-sidebar-icon {
    width: 48px;
    height: 48px;
  }
}

/* ===== 桌面端增强 ===== */
@media (min-width: 768px) {
  .page-news-block-grid {
    grid-template-columns: 1.2fr 1fr;
  }
  .page-news-block-grid-reverse {
    grid-template-columns: 1fr 1.2fr;
  }
  .page-news-block-media {
    justify-content: flex-end;
  }
  .page-news-block-grid-reverse .page-news-block-media {
    justify-content: flex-start;
  }
  .page-news-sidebar {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  .page-news-sidebar-links {
    text-align: right;
  }
  .page-news-sidebar-list {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-news {
    --page-news-gap: 3.5rem;
  }
  .page-news-timeline {
    padding-left: 3rem;
  }
  .page-news-timeline::before {
    left: 1rem;
  }
  .page-news-timeline-dot {
    width: 1.3rem;
    height: 1.3rem;
  }
  .page-news-timeline-card {
    padding-left: 0.5rem;
  }
  .page-news-img-landscape {
    max-height: 340px;
    width: 100%;
    object-position: center 30%;
  }
}

/* ===== 滚动高亮（渐进增强） ===== */
.page-news-block[data-section] {
  scroll-margin-top: 80px;
  transition: border-left 0.3s;
  border-left: 3px solid transparent;
  padding-left: clamp(0.5rem, 2vw, 1rem);
}
.page-news-block[data-section]:target,
.page-news-block[data-section].is-visible {
  border-left-color: var(--c-secondary, #00FF87);
}
.page-news-block[data-section]:target .page-news-block-heading,
.page-news-block[data-section].is-visible .page-news-block-heading {
  color: var(--c-secondary, #00FF87);
}