/* =============================================
   page-news — 行业观察 页面专属样式
   移动端优先 + 桌面增强
   ============================================= */
.page-news {
  --insights-sidebar-width: 220px;
  --insights-gap: 32px;
  --insights-card-radius: 6px;
  --insights-transition-speed: 0.3s;
  --insights-accent-height: 3px;
  --insights-timeline-dot: 12px;

  display: block;
  width: 100%;
  max-width: var(--container-max-width, 1280px);
  margin: 0 auto;
  padding: 24px 16px 48px;
  font-family: var(--font-body, 'Source Han Serif SC', 'Noto Serif SC', serif);
  color: var(--color-text-primary-dark, #0B1A2E);
  background-color: var(--color-background-light, #F5F5F0);
}

/* 面包屑 */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.8rem;
  color: var(--color-text-secondary, #6E7B8B);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.page-news .breadcrumb a {
  color: var(--color-primary-gold, #D4A843);
  text-decoration: none;
  transition: opacity var(--insights-transition-speed);
}
.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus {
  opacity: 0.75;
  text-decoration: underline;
}
.page-news .breadcrumb-sep {
  color: var(--color-border-subtle, #2C3E50);
  user-select: none;
}
.page-news .breadcrumb [aria-current="page"] {
  color: var(--color-text-primary-dark, #0B1A2E);
  font-weight: 600;
}

/* 页面标题区 */
.page-news .insights-header {
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border-subtle, #2C3E50);
}
.page-news .insights-title {
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-primary-dark-blue, #0B1A2E);
  margin: 0 0 8px 0;
  line-height: 1.15;
}
.page-news .insights-subtitle {
  font-family: var(--font-body, 'Source Han Serif SC', 'Noto Serif SC', serif);
  font-size: 0.95rem;
  color: var(--color-text-secondary, #6E7B8B);
  margin: 0 0 12px 0;
  max-width: 680px;
  line-height: 1.5;
}
.page-news .insights-accent-line {
  display: block;
  width: 72px;
  height: var(--insights-accent-height);
  background-color: var(--color-primary-gold, #D4A843);
  border-radius: 2px;
}

/* 两栏布局 */
.page-news .insights-layout {
  display: flex;
  flex-direction: column;
  gap: var(--insights-gap);
}

/* 左侧窄栏 — 移动端顶部横向滚动标签 */
.page-news .insights-sidebar {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary-gold, #D4A843) transparent;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-subtle, #2C3E50);
}
.page-news .insights-sidebar::-webkit-scrollbar {
  height: 4px;
}
.page-news .insights-sidebar::-webkit-scrollbar-thumb {
  background-color: var(--color-primary-gold, #D4A843);
  border-radius: 4px;
}
.page-news .category-tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 4px 0;
  min-width: max-content;
}
.page-news .category-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text-secondary, #6E7B8B);
  background-color: transparent;
  border: 1px solid var(--color-border-subtle, #2C3E50);
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--insights-transition-speed);
  white-space: nowrap;
  user-select: none;
}
.page-news .category-tab:hover,
.page-news .category-tab:focus {
  border-color: var(--color-primary-gold, #D4A843);
  color: var(--color-primary-dark-blue, #0B1A2E);
  outline: none;
}
.page-news .category-tab.is-active,
.page-news .category-tab[aria-selected="true"] {
  background-color: var(--color-primary-dark-blue, #0B1A2E);
  color: var(--color-text-primary-light, #FFFFFF);
  border-color: var(--color-primary-dark-blue, #0B1A2E);
  box-shadow: 0 2px 8px rgba(11,26,46,0.15);
}

/* 右侧宽区 */
.page-news .insights-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

/* 内容区块通用 */
.page-news .content-section {
  display: block;
}
.page-news .section-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}
.page-news .section-heading {
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark-blue, #0B1A2E);
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.page-news .section-header-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--color-primary-gold, #D4A843), transparent);
  opacity: 0.5;
}

/* ========== 最新动态 ========== */
.page-news .updates-feature {
  position: relative;
  width: 100%;
  height: auto;
  margin-bottom: 32px;
  border-radius: var(--insights-card-radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(11,26,46,0.08);
}
.page-news .updates-feature-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 900/450;
}
.page-news .updates-feature-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(11,26,46,0.7), transparent);
  pointer-events: none;
}
.page-news .updates-feature-text {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.85rem;
  color: var(--color-text-primary-light, #FFFFFF);
  letter-spacing: 0.05em;
  margin: 0;
  text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* 时间线 */
.page-news .updates-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 32px;
  position: relative;
  padding-left: 24px;
}
.page-news .updates-timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background-color: var(--color-border-subtle, #2C3E50);
  opacity: 0.3;
}
.page-news .timeline-item {
  position: relative;
  padding: 16px 0 16px 20px;
  border-bottom: 1px solid rgba(44,62,80,0.08);
  transition: background-color var(--insights-transition-speed);
}
.page-news .timeline-item:last-child {
  border-bottom: none;
}
.page-news .timeline-item:hover {
  background-color: rgba(212,168,67,0.04);
}
.page-news .timeline-marker {
  position: absolute;
  left: -20px;
  top: 22px;
  width: var(--insights-timeline-dot);
  height: var(--insights-timeline-dot);
  border-radius: 50%;
  background-color: var(--color-primary-gold, #D4A843);
  border: 2px solid var(--color-background-light, #F5F5F0);
  box-shadow: 0 0 0 2px var(--color-primary-gold, #D4A843);
  z-index: 1;
}
.page-news .timeline-content {
  display: block;
}
.page-news .timeline-heading {
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary-dark-blue, #0B1A2E);
  margin: 0 0 4px 0;
}
.page-news .timeline-meta {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.75rem;
  color: var(--color-primary-gold, #D4A843);
  margin: 0 0 8px 0;
  letter-spacing: 0.03em;
}
.page-news .timeline-desc {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-primary-dark, #0B1A2E);
  margin: 0 0 10px 0;
  max-width: 620px;
}
.page-news .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text-primary-light, #FFFFFF);
  background-color: var(--color-primary-dark-blue, #0B1A2E);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--insights-transition-speed), transform var(--insights-transition-speed);
}
.page-news .btn:hover,
.page-news .btn:focus {
  background-color: #1a2f4a;
  transform: translateY(-1px);
  outline: none;
}
.page-news .btn--small {
  padding: 5px 14px;
  font-size: 0.72rem;
}

/* 品牌动态焦点 */
.page-news .brand-spotlight {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 24px;
  background-color: var(--color-background-dark-section, #111820);
  border-radius: var(--insights-card-radius);
  color: var(--color-text-primary-light, #FFFFFF);
  margin-top: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
}
.page-news .brand-spotlight-img {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: 4px;
  margin: 0 auto;
}
.page-news .brand-spotlight-text {
  flex: 1;
}
.page-news .brand-spotlight-heading {
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary-gold, #D4A843);
  margin: 0 0 12px 0;
}
.page-news .brand-spotlight-text p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
  color: rgba(255,255,255,0.85);
}

/* ========== 赛前前瞻精选 ========== */
.page-news .article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.page-news .article-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-text-primary-light, #FFFFFF);
  border: 1px solid rgba(44,62,80,0.12);
  border-radius: var(--insights-card-radius);
  overflow: hidden;
  transition: transform var(--insights-transition-speed), box-shadow var(--insights-transition-speed);
  box-shadow: 0 2px 8px rgba(11,26,46,0.04);
}
.page-news .article-card:hover,
.page-news .article-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(11,26,46,0.12);
  border-color: var(--color-primary-gold, #D4A843);
}
.page-news .article-card__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 300/200;
  object-fit: cover;
  border-bottom: 1px solid rgba(44,62,80,0.06);
}
.page-news .article-card__content {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.page-news .article-card__tag {
  display: inline-block;
  align-self: flex-start;
  padding: 3px 12px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-primary-dark-blue, #0B1A2E);
  background-color: rgba(212,168,67,0.12);
  border-left: 2px solid var(--color-primary-gold, #D4A843);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.page-news .article-card__title {
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary-dark-blue, #0B1A2E);
  margin: 0 0 8px 0;
  line-height: 1.3;
}
.page-news .article-card__summary {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-secondary, #6E7B8B);
  margin: 0 0 10px 0;
  flex: 1;
}
.page-news .article-card__meta {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.7rem;
  color: var(--color-border-subtle, #2C3E50);
  opacity: 0.7;
}

/* ========== 数据解读 ========== */
.page-news .data-article {
  display: block;
  padding: 0;
}
.page-news .data-article__title {
  font-family: var(--font-heading, 'Noto Sans SC', sans-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary-dark-blue, #0B1A2E);
  margin: 0 0 12px 0;
  line-height: 1.25;
}
.page-news .data-article__intro {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-secondary, #6E7B8B);
  margin: 0 0 28px 0;
  max-width: 640px;
}

/* 图表容器 */
.page-news .data-chart-wrapper {
  margin-bottom: 28px;
  padding: 20px 16px;
  background-color: var(--color-background-dark-section, #111820);
  border-radius: var(--insights-card-radius);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.page-news .data-chart {
  position: relative;
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, rgba(212,168,67,0.05) 0%, rgba(57,255,20,0.03) 100%);
  border: 1px solid rgba(212,168,67,0.15);
  border-radius: 4px;
  overflow: visible;
}
.page-news .chart-line {
  position: absolute;
  inset: 16px 24px 24px 32px;
  display: block;
}
.page-news .chart-line::before {
  content: '';
  position: absolute;
  inset: 0;
  border-bottom: 1px dashed rgba(212,168,67,0.2);
  border-left: 1px solid rgba(212,168,67,0.3);
}
/* 模拟折线（用渐变色块代替） */
.page-news .chart-line::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 100%;
  background: linear-gradient(to top, 
    rgba(57,255,20,0.08) 0%, 
    rgba(212,168,67,0.04) 40%, 
    transparent 80%);
  clip-path: polygon(0% 88%, 4% 72%, 12% 65%, 20% 52%, 30% 28%, 40% 35%, 48% 42%, 56% 18%, 66% 24%, 76% 10%, 84% 15%, 92% 5%, 96% 12%, 100% 0%, 100% 100%, 0% 100%);
  pointer-events: none;
}
.page-news .chart-point {
  position: absolute;
  width: 10px;
  height: 10px;
  margin-left: -5px;
  margin-bottom: -5px;
  background-color: var(--color-accent-fluorescent-green, #39FF14);
  border: 2px solid var(--color-primary-dark-blue, #0B1A2E);
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--insights-transition-speed), box-shadow var(--insights-transition-speed);
  box-shadow: 0 0 0 1px rgba(57,255,20,0.3);
  z-index: 2;
}
.page-news .chart-point:hover,
.page-news .chart-point:focus {
  transform: scale(1.6);
  box-shadow: 0 0 12px rgba(57,255,20,0.6);
  outline: none;
}
.page-news .chart-point::after {
  content: attr(data-value);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 2px 8px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.65rem;
  color: var(--color-text-primary-light, #FFFFFF);
  background-color: var(--color-primary-dark-blue, #0B1A2E);
  border-radius: 3px;
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--insights-transition-speed);
  pointer-events: none;
}
.page-news .chart-point:hover::after,
.page-news .chart-point:focus::after {
  opacity: 1;
}
.page-news .chart-labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.6rem;
  color: rgba(255,255,255,0.4);
}
.page-news .chart-label-x {
  position: absolute;
  bottom: 4px;
  right: 12px;
}
.page-news .chart-label-y {
  position: absolute;
  top: 50%;
  left: 4px;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: left center;
}
.page-news .chart-caption {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 0.72rem;
  color: var(--color-text-secondary, #6E7B8B);
  margin: 12px 0 0 0;
  text-align: center;
  opacity: 0.8;
}

/* 数据配图 */
.page-news .data-article__img {
  display: block;
  width: 100%;
  max-width: 500px;
  height: auto;
  aspect-ratio: 500/350;
  object-fit: cover;
  border-radius: var(--insights-card-radius);
  margin: 0 auto 24px;
  box-shadow: 0 2px 12px rgba(11,26,46,0.06);
}

/* 文章正文 */
.page-news .data-article__body {
  max-width: 680px;
  margin-bottom: 24px;
}
.page-news .data-article__body p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-primary-dark, #0B1A2E);
  margin: 0 0 16px 0;
}

/* ========== 桌面端增强 ========== */
@media (min-width: 768px) {
  .page-news {
    padding: 28px 24px 64px;
  }
  .page-news .insights-title {
    font-size: 2.8rem;
  }
  .page-news .insights-subtitle {
    font-size: 1rem;
  }

  /* 两栏布局激活 */
  .page-news .insights-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: 40px;
  }

  /* 左侧窄栏 — 垂直标签 */
  .page-news .insights-sidebar {
    width: var(--insights-sidebar-width);
    flex-shrink: 0;
    overflow-x: visible;
    border-bottom: none;
    padding-bottom: 0;
    padding-top: 8px;
    position: sticky;
    top: calc(var(--header-height, 80px) + 24px);
  }
  .page-news .category-tabs {
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    padding: 0;
  }
  .page-news .category-tab {
    justify-content: flex-start;
    padding: 10px 16px;
    border-radius: 6px;
    border: 1px solid transparent;
    background-color: transparent;
    width: 100%;
    white-space: normal;
    font-size: 0.82rem;
  }
  .page-news .category-tab.is-active,
  .page-news .category-tab[aria-selected="true"] {
    background-color: var(--color-primary-dark-blue, #0B1A2E);
    color: var(--color-text-primary-light, #FFFFFF);
    border-color: var(--color-primary-dark-blue, #0B1A2E);
  }
  .page-news .category-tab:hover {
    border-color: var(--color-primary-gold, #D4A843);
  }

  /* 右侧宽区 */
  .page-news .insights-main {
    gap: 56px;
  }

  /* 卡片网格多列 */
  .page-news .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 品牌焦点并排 */
  .page-news .brand-spotlight {
    flex-direction: row;
    align-items: center;
  }
  .page-news .brand-spotlight-img {
    width: 180px;
    min-width: 180px;
    margin: 0;
  }

  /* 图表高度增加 */
  .page-news .data-chart {
    height: 260px;
  }
}

@media (min-width: 1024px) {
  .page-news {
    padding: 32px 32px 72px;
  }
  .page-news .insights-title {
    font-size: 3.2rem;
  }
  .page-news .insights-layout {
    gap: 52px;
  }
  .page-news .insights-sidebar {
    width: 240px;
  }
  .page-news .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news .brand-spotlight-img {
    width: 220px;
    min-width: 220px;
  }
  .page-news .data-chart {
    height: 300px;
  }
}

/* ========== 辅助 ========== */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
.page-news .btn:focus-visible,
.page-news .category-tab:focus-visible,
.page-news .chart-point:focus-visible {
  outline: 2px solid var(--color-accent-fluorescent-green, #39FF14);
  outline-offset: 2px;
}