/* ===== 品牌动态页面专属样式 ===== */
.page-news {
  --news-gold: var(--gold);
  --news-green: var(--deep-green);
  --news-bg: var(--light-green-bg);
  --news-card-bg: var(--white);
  --news-line-width: 3px;
  --news-dot-size: 16px;
  --news-timeline-width: 90px;
  --news-radius: var(--radius-md);
  --news-shadow: 0 4px 20px rgba(0,0,0,0.06);
  --news-shadow-hover: 0 8px 32px rgba(11,78,46,0.15);
  --news-transition: var(--transition-med);
  color: var(--charcoal);
  background: var(--news-bg);
}

/* 容器 */
.page-news .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
  box-sizing: border-box;
}

/* 面包屑 */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 24px 0 8px;
  font-size: 14px;
  font-family: var(--font-body);
  color: var(--grey-text);
}
.page-news .breadcrumb a {
  color: var(--grey-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-news .breadcrumb a:hover {
  color: var(--news-green);
}
.page-news .breadcrumb .sep {
  color: var(--news-gold);
  font-weight: 700;
}
.page-news .breadcrumb [aria-current="page"] {
  color: var(--news-green);
  font-weight: 600;
}

/* 页面标题 */
.page-news .page-title {
  font-size: 42px;
  font-weight: 700;
  color: var(--news-green);
  margin: 0 0 6px;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
.page-news .page-desc {
  font-size: 16px;
  color: var(--grey-text);
  max-width: 640px;
  margin: 0 0 36px;
  font-family: var(--font-body);
  line-height: 1.6;
}

/* ===== 时间线布局 ===== */
.page-news .news-layout {
  display: grid;
  grid-template-columns: var(--news-timeline-width) 1fr;
  gap: 0;
  position: relative;
  padding-bottom: 48px;
}

/* 左栏时间线 */
.page-news .timeline-bar {
  position: relative;
  width: var(--news-timeline-width);
  min-height: 600px;
  flex-shrink: 0;
}
.page-news .timeline-bg {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: var(--radius-sm);
  opacity: 0.25;
  pointer-events: none;
}
.page-news .timeline-bg-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.page-news .timeline-line {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: var(--news-line-width);
  height: 100%;
  background: linear-gradient(to bottom, var(--news-gold), var(--news-green), var(--news-gold));
  border-radius: 4px;
  opacity: 0.5;
}
.page-news .timeline-dots {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  padding: 30px 0;
  box-sizing: border-box;
}
.page-news .timeline-dot {
  display: block;
  width: var(--news-dot-size);
  height: var(--news-dot-size);
  border-radius: 50%;
  background: var(--news-gold);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--news-gold), 0 4px 12px rgba(255,215,0,0.3);
  flex-shrink: 0;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.page-news .timeline-dot:hover {
  transform: scale(1.25);
  box-shadow: 0 0 0 3px var(--news-gold), 0 6px 20px rgba(255,215,0,0.45);
}

/* 右栏内容 */
.page-news .timeline-entries {
  min-width: 0;
  padding-left: 32px;
}

/* ===== 分组标题 ===== */
.page-news .entries-group {
  margin-bottom: 48px;
}
.page-news .group-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--news-green);
  margin: 0 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  letter-spacing: 0.01em;
}
.page-news .group-index {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--news-gold);
  background: rgba(255,215,0,0.15);
  padding: 2px 12px;
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

/* ===== 时间线卡片 ===== */
.page-news .timeline-card {
  position: relative;
  background: var(--news-card-bg);
  border-radius: var(--news-radius);
  box-shadow: var(--news-shadow);
  margin-bottom: 20px;
  border-left: 4px solid transparent;
  transition: border-color var(--news-transition), box-shadow var(--news-transition), transform var(--news-transition);
  overflow: hidden;
}
.page-news .timeline-card:hover {
  border-left-color: var(--news-gold);
  box-shadow: var(--news-shadow-hover);
  transform: translateX(4px);
}
.page-news .timeline-card[data-card="v2.0"] { border-left-color: var(--news-gold); }
.page-news .timeline-card[data-card="v1.6"] { border-left-color: var(--news-green); }
.page-news .timeline-card[data-card="coverage"] { border-left-color: var(--news-gold); }
.page-news .timeline-card[data-card="update"] { border-left-color: var(--news-green); }
.page-news .timeline-card[data-card="trend"] { border-left-color: var(--news-gold); }
.page-news .timeline-card[data-card="mobile"] { border-left-color: var(--news-green); }

/* 卡片标签 */
.page-news .card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.04em;
  z-index: 2;
  line-height: 1.4;
}
.page-news .badge-gold {
  background: var(--news-gold);
  color: var(--charcoal);
}
.page-news .badge-green {
  background: var(--news-green);
  color: var(--white);
}

/* details / summary */
.page-news .card-details {
  display: block;
  cursor: pointer;
}
.page-news .card-details[open] .card-summary {
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.page-news .card-summary {
  list-style: none;
  display: block;
  padding: 20px 100px 20px 24px;
  transition: background var(--transition-fast);
  border-radius: var(--news-radius);
}
.page-news .card-summary::-webkit-details-marker {
  display: none;
}
.page-news .card-summary:hover {
  background: rgba(255,215,0,0.04);
}
.page-news .card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--charcoal);
  margin: 0 0 6px;
  line-height: 1.3;
  transition: color var(--transition-fast);
}
.page-news .timeline-card:hover .card-title {
  color: var(--news-green);
}
.page-news .card-excerpt {
  font-size: 15px;
  color: var(--grey-text);
  line-height: 1.6;
  margin: 0;
  font-family: var(--font-body);
}

/* 展开内容 */
.page-news .card-expanded {
  padding: 20px 24px 24px;
  animation: pageNewsFadeIn 0.3s ease;
}
@keyframes pageNewsFadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-news .card-expanded p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--grey-text);
  margin: 0 0 16px;
  font-family: var(--font-body);
}
.page-news .card-img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 0 0 16px;
  object-fit: cover;
  background: var(--gold-light);
}

/* 卡片内链接 */
.page-news .card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,0.05);
}
.page-news .card-links .btn {
  font-size: 13px;
  padding: 6px 16px;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
}
.page-news .card-links .btn-outline {
  border: 1.5px solid var(--news-green);
  color: var(--news-green);
  background: transparent;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: inline-block;
  line-height: 1.5;
}
.page-news .card-links .btn-outline:hover {
  background: var(--news-green);
  color: var(--white);
}

/* ===== 可视化小图表 ===== */
.page-news .mini-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 0 8px;
  margin-bottom: 16px;
  border-top: 1px dashed rgba(0,0,0,0.08);
}
.page-news .chart-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-news .chart-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--charcoal);
  width: 48px;
  flex-shrink: 0;
  letter-spacing: 0.03em;
}
.page-news .chart-bar {
  display: block;
  height: 20px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--news-gold), #f0c000);
  min-width: 20px;
  transition: width var(--transition-med);
  box-shadow: 0 2px 6px rgba(255,215,0,0.2);
}

/* ===== 快速导航 ===== */
.page-news .related-nav {
  margin-top: 40px;
  padding: 28px 24px;
  background: var(--news-green);
  border-radius: var(--radius-lg);
  color: var(--white);
}
.page-news .related-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--news-gold);
  letter-spacing: 0.02em;
}
.page-news .related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}
.page-news .related-link {
  color: var(--white);
  text-decoration: none;
  font-size: 15px;
  font-family: var(--font-body);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.page-news .related-link:hover {
  border-bottom-color: var(--news-gold);
  color: var(--news-gold);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .page-news .container {
    padding: 0 14px;
  }
  .page-news .page-title {
    font-size: 30px;
  }
  .page-news .page-desc {
    font-size: 14px;
    margin-bottom: 24px;
  }

  /* 时间线变窄 */
  .page-news .news-layout {
    grid-template-columns: 28px 1fr;
    padding-bottom: 32px;
  }
  .page-news .timeline-bar {
    width: 28px;
    min-height: 400px;
  }
  .page-news .timeline-line {
    width: 2px;
  }
  .page-news .timeline-dot {
    width: 12px;
    height: 12px;
    border-width: 2px;
  }
  .page-news .timeline-dots {
    padding: 20px 0;
  }
  .page-news .timeline-bg {
    opacity: 0.12;
  }

  /* 卡片调整 */
  .page-news .timeline-entries {
    padding-left: 14px;
  }
  .page-news .group-title {
    font-size: 20px;
    gap: 8px;
  }
  .page-news .group-index {
    font-size: 16px;
    padding: 1px 10px;
  }
  .page-news .card-summary {
    padding: 16px 80px 16px 16px;
  }
  .page-news .card-badge {
    top: 12px;
    right: 12px;
    font-size: 11px;
    padding: 3px 10px;
  }
  .page-news .card-title {
    font-size: 17px;
  }
  .page-news .card-excerpt {
    font-size: 14px;
  }
  .page-news .card-expanded {
    padding: 16px 16px 20px;
  }
  .page-news .card-expanded p {
    font-size: 14px;
  }

  .page-news .mini-chart {
    gap: 8px;
    padding: 12px 0 6px;
  }
  .page-news .chart-label {
    font-size: 12px;
    width: 40px;
  }
  .page-news .chart-bar {
    height: 16px;
  }

  .page-news .related-nav {
    padding: 20px 16px;
    margin-top: 28px;
  }
  .page-news .related-title {
    font-size: 17px;
  }
  .page-news .related-link {
    font-size: 14px;
  }

  .page-news .card-links {
    gap: 8px;
  }
  .page-news .card-links .btn {
    font-size: 12px;
    padding: 5px 12px;
  }
}

@media (max-width: 480px) {
  .page-news .news-layout {
    grid-template-columns: 1fr;
  }
  .page-news .timeline-bar {
    display: none;
  }
  .page-news .timeline-entries {
    padding-left: 0;
  }
  .page-news .page-title {
    font-size: 26px;
  }
  .page-news .group-title {
    font-size: 18px;
  }
  .page-news .card-title {
    font-size: 16px;
  }
  .page-news .card-summary {
    padding: 14px 12px 14px 14px;
  }
  .page-news .card-badge {
    position: static;
    display: inline-block;
    margin: 0 0 8px 14px;
    font-size: 11px;
  }
  .page-news .timeline-card {
    border-left-width: 3px;
  }
  .page-news .timeline-card:hover {
    transform: none;
  }
}

/* 打印支持 */
@media print {
  .page-news .timeline-bar { display: none; }
  .page-news .news-layout { grid-template-columns: 1fr; }
  .page-news .timeline-entries { padding-left: 0; }
  .page-news .timeline-card { break-inside: avoid; box-shadow: none; border: 1px solid #ddd; }
}