/* ============================================
   page-news  — 品牌日志（横向滚动平板式布局）
   所有选择器限定在 .page-news 作用域内
   ============================================ */
.page-news {
  --news-bg: var(--color-white);
  --news-accent: var(--color-accent);
  --news-primary: var(--color-primary);
  --news-dark: var(--color-dark);
  --news-text: var(--color-text);
  --news-text-secondary: var(--color-text-secondary);
  --news-card-radius: var(--radius-lg);
  --news-card-shadow: var(--shadow-card);
  --news-card-shadow-hover: var(--shadow-card-hover);
  --news-transition: var(--transition-base);

  /* 移动端默认变量 */
  --news-scroll-gap: var(--spacing-md);
  --news-card-min-width: 280px;
  --news-card-max-width: 340px;

  font-family: var(--font-family);
  color: var(--news-text);
  background-color: var(--color-light);
  padding-bottom: var(--spacing-2xl);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-label);
  letter-spacing: 0.3px;
  margin-bottom: var(--spacing-sm);
  flex-wrap: wrap;
}
.page-news .breadcrumb__link {
  color: var(--color-link);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}
.page-news .breadcrumb__link:hover {
  opacity: 0.8;
  text-decoration: underline;
}
.page-news .breadcrumb__sep {
  color: var(--news-text-secondary);
  margin: 0 2px;
}
.page-news .breadcrumb__current {
  color: var(--news-dark);
  font-weight: var(--font-weight-h2);
}

/* ---------- Hero 区域 ---------- */
.page-news__hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  position: relative;
  overflow: hidden;
}
.page-news__hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,111,0,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.page-news__hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.page-news .breadcrumb__link {
  color: rgba(255,255,255,0.85);
}
.page-news .breadcrumb__sep {
  color: rgba(255,255,255,0.5);
}
.page-news .breadcrumb__current {
  color: var(--color-white);
}
.page-news__title {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-h1);
  line-height: var(--line-height-h1);
  margin: 0 0 var(--spacing-xs);
  letter-spacing: -0.5px;
}
.page-news__subtitle {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 0 var(--spacing-sm);
}
.page-news__trust {
  font-size: var(--font-size-xs);
  opacity: 0.7;
  border-left: 3px solid var(--color-accent);
  padding-left: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

/* ---------- 标签导航 (页内锚点) ---------- */
.page-news__tabs {
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-md) 0;
  max-width: var(--container-max);
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--color-light);
  padding-bottom: var(--spacing-sm);
}
.page-news__tabs::-webkit-scrollbar {
  display: none;
}
.page-news__tab {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-label);
  color: var(--news-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-xl);
  background-color: transparent;
  transition: all var(--news-transition);
  white-space: nowrap;
  border: 1px solid transparent;
}
.page-news__tab:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.page-news__tab:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- 通用段落标题 ---------- */
.page-news__section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-xl);
}
.page-news__section-header {
  margin-bottom: var(--spacing-lg);
}
.page-news__section-title {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-h2);
  line-height: var(--line-height-h2);
  color: var(--news-dark);
  margin: 0 0 var(--spacing-xs);
  position: relative;
  display: inline-block;
}
.page-news__section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 4px;
  background: var(--news-accent);
  border-radius: 2px;
  margin-top: var(--spacing-xs);
}
.page-news__section-desc {
  font-size: var(--font-size-body);
  color: var(--news-text-secondary);
  margin: var(--spacing-xs) 0 0;
  max-width: 560px;
}

/* ---------- 横向滚动包装器 ---------- */
.page-news__scroll-wrapper {
  position: relative;
}
.page-news__cards {
  display: flex;
  gap: var(--news-scroll-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--spacing-sm);
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-light-border);
}
.page-news__cards::-webkit-scrollbar {
  height: 6px;
}
.page-news__cards::-webkit-scrollbar-track {
  background: var(--color-light-border);
  border-radius: 3px;
}
.page-news__cards::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 3px;
}

/* ---------- 通用卡片 ---------- */
.page-news__card {
  flex: 0 0 var(--news-card-min-width);
  max-width: var(--news-card-max-width);
  scroll-snap-align: start;
  background-color: var(--color-white);
  border-radius: var(--news-card-radius);
  box-shadow: var(--news-card-shadow);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  transition: transform var(--news-transition), box-shadow var(--news-transition);
  position: relative;
  overflow: hidden;
}
.page-news__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--news-card-shadow-hover);
}

/* 卡片图标 */
.page-news__card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.page-news__card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 卡片标题 */
.page-news__card-title {
  font-size: 18px;
  font-weight: var(--font-weight-h2);
  line-height: 1.3;
  color: var(--news-dark);
  margin: 0 0 var(--spacing-xs);
}

/* 卡片摘要 */
.page-news__card-summary {
  font-size: var(--font-size-small);
  line-height: var(--line-height-body);
  color: var(--news-text-secondary);
  margin: 0 0 var(--spacing-sm);
  flex-grow: 1;
}

/* 可展开详情 */
.page-news__card-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.3s ease;
  opacity: 0;
  margin-bottom: 0;
}
.page-news__card-detail[data-expandable-content] p {
  font-size: var(--font-size-small);
  line-height: var(--line-height-body);
  color: var(--news-text);
  margin: 0 0 var(--spacing-xs);
}
.page-news__card-detail[data-expandable-content] p:last-child {
  margin-bottom: 0;
}

/* 展开状态 */
.page-news__card[data-expanded] .page-news__card-detail {
  max-height: 320px;
  opacity: 1;
  margin-bottom: var(--spacing-sm);
}

/* 展开按钮 */
.page-news__card-toggle {
  align-self: flex-start;
  margin-top: auto;
  font-size: var(--font-size-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: all var(--news-transition);
}
.page-news__card[data-expanded] .page-news__card-toggle {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ---------- 数据优化卡片（带背景图） ---------- */
.page-news__card--bg-chart {
  padding: 0;
  display: flex;
  flex-direction: column;
}
.page-news__card--bg-chart .page-news__card-bg {
  width: 100%;
  height: 140px;
  overflow: hidden;
  border-radius: var(--news-card-radius) var(--news-card-radius) 0 0;
}
.page-news__card--bg-chart .page-news__card-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.page-news__card--bg-chart:hover .page-news__card-bg-img {
  transform: scale(1.05);
}
.page-news__card--bg-chart .page-news__card-content {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ---------- 行业观察卡片（带视觉图） ---------- */
.page-news__card--insight {
  padding: 0;
  display: flex;
  flex-direction: column;
}
.page-news__card--insight .page-news__card-visual {
  width: 100%;
  height: 160px;
  overflow: hidden;
  border-radius: var(--news-card-radius) var(--news-card-radius) 0 0;
}
.page-news__card--insight .page-news__card-visual-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.page-news__card--insight:hover .page-news__card-visual-img {
  transform: scale(1.05);
}
.page-news__card--insight .page-news__card-content {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ---------- 滚动指示器 ---------- */
.page-news__scroll-indicator {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
}
.page-news__scroll-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-light-border);
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.page-news__scroll-dot.is-active {
  background-color: var(--color-primary);
  transform: scale(1.3);
}

/* ---------- 段落 footer ---------- */
.page-news__section-footer {
  margin-top: var(--spacing-lg);
  text-align: center;
}
.page-news__section-footer .btn {
  font-size: var(--font-size-small);
  padding: var(--spacing-xs) var(--spacing-lg);
}

/* ============================================
   桌面端适配
   ============================================ */
@media (min-width: 768px) {
  .page-news {
    --news-card-min-width: 320px;
    --news-card-max-width: 380px;
    --news-scroll-gap: var(--spacing-lg);
  }

  .page-news__hero {
    padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-xl);
  }
  .page-news__title {
    font-size: 48px;
  }
  .page-news__subtitle {
    font-size: 18px;
  }
  .page-news__tabs {
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-sm);
    gap: var(--spacing-sm);
  }
  .page-news__tab {
    font-size: var(--font-size-body);
    padding: var(--spacing-xs) var(--spacing-lg);
  }
  .page-news__section {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-2xl);
  }
  .page-news__cards {
    padding-bottom: var(--spacing-md);
  }
  .page-news__card {
    padding: var(--spacing-lg);
  }
  .page-news__card-title {
    font-size: 20px;
  }
  .page-news__card--bg-chart .page-news__card-bg {
    height: 170px;
  }
  .page-news__card--insight .page-news__card-visual {
    height: 190px;
  }
  .page-news__section-footer .btn {
    font-size: var(--font-size-body);
    padding: var(--spacing-sm) var(--spacing-xl);
  }
}

@media (min-width: 1024px) {
  .page-news {
    --news-card-min-width: 340px;
    --news-card-max-width: 400px;
    --news-scroll-gap: var(--spacing-xl);
  }
  .page-news__hero::after {
    width: 600px;
    height: 600px;
  }
  .page-news__title {
    font-size: 52px;
  }
  .page-news__subtitle {
    font-size: 20px;
    max-width: 700px;
  }
  .page-news__card {
    padding: var(--spacing-xl);
  }
  .page-news__card--bg-chart .page-news__card-bg {
    height: 200px;
  }
  .page-news__card--insight .page-news__card-visual {
    height: 220px;
  }
  .page-news__scroll-indicator {
    display: none; /* 桌面端隐藏指示器 */
  }
}
```