.page-news {
  --news-gold: #F2C94C;
  --news-red: #E63946;
  --news-deep-blue: #0B1A2E;
  --news-gray-1: #B0B8C1;
  --news-gray-2: #2C3E50;
  --news-white: #FFFFFF;
  --news-timeline-width: 4px;
  --news-dot-size: 18px;
  --news-card-radius: 12px;
  --news-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  background-color: var(--news-deep-blue);
  color: var(--news-white);
  font-family: 'Inter', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  padding: 0 1rem 3rem;
  max-width: 100%;
  overflow-x: hidden;
}

/* 面包屑 */
.page-news__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0 0.5rem;
  font-size: 0.85rem;
  color: var(--news-gray-1);
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  width: 100%;
}
.page-news__breadcrumb a {
  color: var(--news-gold);
  text-decoration: none;
  transition: opacity var(--news-transition);
}
.page-news__breadcrumb a:hover,
.page-news__breadcrumb a:focus-visible {
  opacity: 0.75;
  outline: none;
  box-shadow: var(--focus-glow, 0 0 0 3px #F2C94C);
}
.page-news__breadcrumb-sep {
  color: var(--news-gold);
  font-size: 0.65rem;
  opacity: 0.7;
}
.page-news__breadcrumb [aria-current="page"] {
  color: var(--news-white);
  font-weight: 600;
}

/* Hero 区 */
.page-news__hero {
  text-align: center;
  padding: 1.5rem 0 2rem;
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  width: 100%;
}
.page-news__hero-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin: 0 0 0.5rem;
  font-family: 'Inter', 'Helvetica', 'Arial', sans-serif;
  font-weight: 800;
  letter-spacing: 0.05em;
  font-size: 2rem;
  line-height: 1.2;
}
.page-news__hero-title .page-news__section-num {
  font-size: 1.6em;
  color: var(--news-gold);
  background: linear-gradient(135deg, var(--news-gold), var(--news-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-news__hero-title .page-news__section-label {
  color: var(--news-white);
}
.page-news__hero-desc {
  color: var(--news-gray-1);
  font-size: 1rem;
  margin: 0 0 1.5rem;
  letter-spacing: 0.03em;
}
.page-news__hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--news-card-radius);
  object-fit: cover;
  aspect-ratio: 1200 / 300;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  margin: 0 auto;
}

/* 通用章节 */
.page-news__section {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 2.5rem 0;
  width: 100%;
}
.page-news__section-header {
  margin-bottom: 2rem;
  border-left: 4px solid var(--news-gold);
  padding-left: 1rem;
}
.page-news__section-title {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 0 0 0.4rem;
  font-family: 'Inter', 'Helvetica', 'Arial', sans-serif;
  font-weight: 800;
  letter-spacing: 0.05em;
  font-size: 1.75rem;
  line-height: 1.2;
}
.page-news__section-title .page-news__section-num {
  font-size: 1.4em;
  color: var(--news-gold);
  background: linear-gradient(135deg, var(--news-gold), var(--news-red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.page-news__section-title .page-news__section-label {
  color: var(--news-white);
}
.page-news__section-desc {
  color: var(--news-gray-1);
  font-size: 0.95rem;
  margin: 0;
  max-width: 600px;
}

/* 时间线布局 */
.page-news__timeline-section {
  position: relative;
}
.page-news__timeline {
  position: relative;
  padding: 0.5rem 0;
}
.page-news__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: var(--news-timeline-width);
  background: linear-gradient(180deg, var(--news-gold), var(--news-red), var(--news-gold));
  border-radius: 2px;
  opacity: 0.6;
}
.page-news__timeline--left::before {
  left: 0.75rem;
}
.page-news__timeline--right::before {
  left: 0.75rem;
}
.page-news__timeline-item {
  position: relative;
  padding-left: 2.5rem;
  padding-bottom: 2rem;
  margin-bottom: 0.5rem;
}
.page-news__timeline-item:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
}
.page-news__timeline-dot {
  position: absolute;
  left: calc(0.75rem - (var(--news-dot-size) - var(--news-timeline-width)) / 2);
  top: 0.25rem;
  width: var(--news-dot-size);
  height: var(--news-dot-size);
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--news-gold), var(--news-red));
  box-shadow: 0 0 12px rgba(242, 201, 76, 0.4);
  z-index: 1;
  transition: transform var(--news-transition), box-shadow var(--news-transition);
}
.page-news__timeline-item:hover .page-news__timeline-dot,
.page-news__timeline-item:focus-within .page-news__timeline-dot {
  transform: scale(1.25);
  box-shadow: 0 0 20px rgba(242, 201, 76, 0.7);
}
.page-news__timeline-content {
  background: var(--news-gray-2);
  border-radius: var(--news-card-radius);
  padding: 1rem 1.25rem;
  transition: transform var(--news-transition), box-shadow var(--news-transition);
  position: relative;
  overflow: hidden;
}
.page-news__timeline-content::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--news-gold), var(--news-red));
  opacity: 0;
  transition: opacity var(--news-transition);
}
.page-news__timeline-item:hover .page-news__timeline-content::after,
.page-news__timeline-item:focus-within .page-news__timeline-content::after {
  opacity: 1;
}
.page-news__timeline-item:hover .page-news__timeline-content,
.page-news__timeline-item:focus-within .page-news__timeline-content {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
}
.page-news__timeline-img {
  width: 100%;
  max-width: 200px;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  margin: 0 0 1rem;
  display: block;
}
.page-news__timeline-img--right {
  max-width: 100%;
  margin: 1rem 0 0;
}
.page-news__timeline-heading {
  font-family: 'Inter', 'Helvetica', 'Arial', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--news-white);
  margin: 0 0 0.25rem;
  letter-spacing: 0.02em;
}
.page-news__timeline-meta {
  font-size: 0.8rem;
  color: var(--news-gold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.5rem;
  font-weight: 600;
}
.page-news__timeline-summary {
  font-size: 0.9rem;
  color: var(--news-gray-1);
  line-height: 1.6;
  margin: 0 0 0.75rem;
}
.page-news__timeline-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--news-gold);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--news-transition), opacity var(--news-transition);
}
.page-news__timeline-link:hover,
.page-news__timeline-link:focus-visible {
  gap: 0.6rem;
  opacity: 0.8;
  outline: none;
  box-shadow: var(--focus-glow, 0 0 0 3px #F2C94C);
  border-radius: 2px;
}

/* 索引网格 */
.page-news__section--index {
  padding-top: 1rem;
}
.page-news__index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.page-news__index-card {
  background: var(--news-gray-2);
  border-radius: var(--news-card-radius);
  overflow: hidden;
  transition: transform var(--news-transition), box-shadow var(--news-transition);
  display: flex;
  flex-direction: column;
  border: 1px solid transparent;
}
.page-news__index-card:hover,
.page-news__index-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  border-color: rgba(242, 201, 76, 0.3);
}
.page-news__index-card-img {
  width: 100%;
  height: auto;
  aspect-ratio: 400 / 250;
  object-fit: cover;
  display: block;
  transition: transform var(--news-transition);
}
.page-news__index-card:hover .page-news__index-card-img,
.page-news__index-card:focus-within .page-news__index-card-img {
  transform: scale(1.03);
}
.page-news__index-card-body {
  padding: 1rem 1.25rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-news__index-card-title {
  font-family: 'Inter', 'Helvetica', 'Arial', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--news-white);
  margin: 0 0 0.35rem;
}
.page-news__index-card-summary {
  font-size: 0.85rem;
  color: var(--news-gray-1);
  line-height: 1.5;
  margin: 0 0 1rem;
  flex: 1;
}
.page-news__index-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--news-gold);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap var(--news-transition), opacity var(--news-transition);
  align-self: flex-start;
}
.page-news__index-card-link:hover,
.page-news__index-card-link:focus-visible {
  gap: 0.6rem;
  opacity: 0.8;
  outline: none;
  box-shadow: var(--focus-glow, 0 0 0 3px #F2C94C);
  border-radius: 2px;
}

/* CTA 区域 */
.page-news__cta-section {
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.page-news__cta-card {
  background: linear-gradient(135deg, rgba(242, 201, 76, 0.08), rgba(230, 57, 70, 0.08));
  border-radius: var(--news-card-radius);
  padding: 2rem 1.5rem;
  text-align: center;
  border: 1px solid rgba(242, 201, 76, 0.2);
}
.page-news__cta-title {
  font-family: 'Inter', 'Helvetica', 'Arial', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--news-white);
  margin: 0 0 0.5rem;
  letter-spacing: 0.03em;
}
.page-news__cta-desc {
  color: var(--news-gray-1);
  font-size: 0.95rem;
  margin: 0 0 1.5rem;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.page-news__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.page-news__cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--news-transition), box-shadow var(--news-transition);
  background: linear-gradient(135deg, var(--news-gold), var(--news-red));
  color: var(--news-deep-blue);
}
.page-news__cta-btn:hover,
.page-news__cta-btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(242, 201, 76, 0.35);
  outline: none;
}
.page-news__cta-btn--secondary {
  background: transparent;
  border: 2px solid var(--news-gold);
  color: var(--news-gold);
}
.page-news__cta-btn--secondary:hover,
.page-news__cta-btn--secondary:focus-visible {
  background: rgba(242, 201, 76, 0.1);
  border-color: var(--news-red);
  color: var(--news-red);
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.2);
}

/* 桌面端：两栏时间线并排 */
@media (min-width: 768px) {
  .page-news {
    padding: 0 2rem 4rem;
  }
  .page-news__hero-title {
    font-size: 2.6rem;
  }
  .page-news__hero-desc {
    font-size: 1.1rem;
  }
  .page-news__section-title {
    font-size: 2rem;
  }
  .page-news__timeline-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
  }
  .page-news__timeline-section .page-news__section-header {
    grid-column: 1 / -1;
  }
  .page-news__timeline {
    padding-top: 0;
  }
  .page-news__timeline--left {
    padding-right: 0.5rem;
  }
  .page-news__timeline--right {
    padding-left: 0.5rem;
  }
  .page-news__timeline--left::before,
  .page-news__timeline--right::before {
    left: 0.75rem;
  }
  .page-news__timeline-item {
    padding-left: 2.5rem;
  }
  .page-news__timeline-dot {
    left: calc(0.75rem - (var(--news-dot-size) - var(--news-timeline-width)) / 2);
  }
  .page-news__timeline-img--right {
    max-width: 280px;
    margin: 1rem 0 0;
  }
  .page-news__index-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-news__hero-title {
    font-size: 3rem;
  }
  .page-news__section-title {
    font-size: 2.25rem;
  }
  .page-news__index-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news__timeline-content {
    padding: 1.25rem 1.5rem;
  }
  .page-news__cta-card {
    padding: 3rem 2rem;
  }
}

/* 焦点与交互增强 */
.page-news *:focus-visible {
  outline: none;
  box-shadow: var(--focus-glow, 0 0 0 3px #F2C94C);
  border-radius: 4px;
}

/* 悬停展开摘要：利用 max-height 过渡 */
.page-news__timeline-summary {
  max-height: 4.8em;
  overflow: hidden;
  transition: max-height var(--news-transition);
}
.page-news__timeline-item:hover .page-news__timeline-summary,
.page-news__timeline-item:focus-within .page-news__timeline-summary {
  max-height: 20em;
}

/* 数据属性交互指示 */
[data-timeline-item] {
  cursor: default;
}
[data-index-card] {
  cursor: pointer;
}
</<PAGE_CSS>>