/* ===== 行业观察页面专属样式 ===== */
.page-news {
  --timeline-width: 280px;
  --timeline-dot-size: 16px;
  --timeline-line-width: 3px;
  --card-min-width: 280px;
}

.page-news__inner {
  position: relative;
  padding-top: var(--space-md);
  padding-bottom: var(--space-2xl);
}

/* 面包屑 */
.page-news__breadcrumb {
  margin-bottom: var(--space-md);
  font-size: var(--caption);
  color: var(--text-body);
}
.page-news__breadcrumb a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
.page-news__breadcrumb a:hover {
  color: var(--accent);
}
.page-news__breadcrumb span[aria-current="page"] {
  color: var(--text-primary);
}

/* 页面标题区 */
.page-news__header {
  margin-bottom: var(--space-xl);
  border-left: 4px solid var(--primary);
  padding-left: var(--space-md);
}
.page-news__title {
  font-family: var(--font-heading);
  font-size: var(--h1);
  line-height: var(--h1-line);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.page-news__desc {
  font-size: var(--body);
  line-height: var(--body-line);
  color: var(--text-body);
  max-width: 640px;
  margin: 0;
}

/* ===== 首屏主动态区 ===== */
.page-news__spotlight {
  margin-bottom: var(--space-xl);
}
.page-news__spotlight-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-glass);
  transition: transform var(--transition), box-shadow var(--transition);
}
.page-news__spotlight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,255,127,0.15);
}
.page-news__spotlight-badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  z-index: 2;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 12px rgba(255,107,53,0.4);
  animation: pageNewsPulse 2s ease-in-out infinite;
}
@keyframes pageNewsPulse {
  0%, 100% { box-shadow: 0 2px 12px rgba(255,107,53,0.4); }
  50% { box-shadow: 0 2px 24px rgba(255,107,53,0.7); }
}
.page-news__spotlight-img-wrap {
  width: 100%;
  max-height: 300px;
  overflow: hidden;
  background: var(--secondary);
}
.page-news__spotlight-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}
.page-news__spotlight-body {
  padding: var(--space-md);
}
.page-news__spotlight-tag {
  display: inline-block;
  margin-bottom: var(--space-xs);
}
.page-news__spotlight-heading {
  font-family: var(--font-heading);
  font-size: var(--h2);
  line-height: var(--h2-line);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-sm);
}
.page-news__spotlight-text {
  font-size: var(--body);
  line-height: var(--body-line);
  color: var(--text-body);
  margin: 0 0 var(--space-md);
}
.page-news__spotlight-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.page-news__spotlight-label {
  font-size: var(--caption);
  color: var(--text-body);
  font-weight: 500;
}
.page-news__spotlight-progress {
  flex: 1;
  min-width: 80px;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  overflow: hidden;
}
.page-news__spotlight-bar {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transition: width 0.6s ease;
}
.page-news__spotlight-status {
  font-size: var(--caption);
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* ===== 双列布局 ===== */
.page-news__layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

/* 区块标题 */
.page-news__section-title {
  font-family: var(--font-heading);
  font-size: var(--h2);
  line-height: var(--h2-line);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--glass-border);
  letter-spacing: 0.02em;
}

/* ===== 时间轴（左侧） ===== */
.page-news__timeline {
  position: relative;
  padding-left: calc(var(--timeline-dot-size) / 2 + 12px);
}
.page-news__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--timeline-dot-size) / 2 + 12px - var(--timeline-line-width) / 2);
  width: var(--timeline-line-width);
  background: linear-gradient(180deg, var(--primary), var(--glass-border), transparent);
  border-radius: 2px;
}
.page-news__timeline-item {
  position: relative;
  margin-bottom: var(--space-lg);
  padding-left: var(--space-md);
  cursor: pointer;
  transition: opacity var(--transition);
}
.page-news__timeline-item:last-child {
  margin-bottom: 0;
}
.page-news__timeline-item:hover {
  opacity: 0.85;
}
.page-news__timeline-marker {
  position: absolute;
  left: calc(-1 * (var(--timeline-dot-size) / 2 + 12px + var(--space-md) - 2px));
  top: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.page-news__timeline-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 2px solid var(--primary);
  box-shadow: 0 0 16px rgba(0,255,127,0.2);
}
.page-news__timeline-dot {
  width: var(--timeline-dot-size);
  height: var(--timeline-dot-size);
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--secondary);
  box-shadow: 0 0 0 2px var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}
.page-news__timeline-dot--default {
  background: var(--glass-border);
  box-shadow: 0 0 0 2px var(--glass-border);
}
.page-news__timeline-item--active .page-news__timeline-dot {
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), 0 0 20px rgba(255,107,53,0.3);
  transform: scale(1.15);
}
.page-news__timeline-content {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: var(--space-sm) var(--space-md);
  transition: background var(--transition), border-color var(--transition);
}
.page-news__timeline-item--active .page-news__timeline-content {
  background: rgba(0,255,127,0.06);
  border-color: var(--primary);
}
.page-news__timeline-heading {
  font-family: var(--font-heading);
  font-size: var(--h3);
  line-height: var(--h3-line);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px;
}
.page-news__timeline-text {
  font-size: var(--body);
  line-height: var(--body-line);
  color: var(--text-body);
  margin: 0;
}

/* ===== 卡片网格（右侧） ===== */
.page-news__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}
.page-news__card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: default;
}
.page-news__card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,255,127,0.12);
}
.page-news__card-img-wrap {
  width: 100%;
  max-height: 180px;
  overflow: hidden;
  background: var(--secondary);
}
.page-news__card-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.page-news__card:hover .page-news__card-img {
  transform: scale(1.03);
}
.page-news__card-body {
  padding: var(--space-sm) var(--space-md) var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.page-news__card-body .tag {
  align-self: flex-start;
  margin-bottom: var(--space-xs);
}
.page-news__card-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 var(--space-xs);
}
.page-news__card-text {
  font-size: var(--body);
  line-height: var(--body-line);
  color: var(--text-body);
  margin: 0;
  flex: 1;
}

/* ===== 背景装饰图 ===== */
.page-news__decor {
  position: absolute;
  right: 0;
  bottom: 120px;
  width: 300px;
  height: 180px;
  opacity: 0.08;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.page-news__decor-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

/* ===== 内链导航 ===== */
.page-news__internal-links {
  position: relative;
  z-index: 1;
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--glass-border);
}
.page-news__internal-links .btn {
  font-size: var(--caption);
  padding: 8px 20px;
}

/* ===== 响应式：桌面端 ≥768px ===== */
@media (min-width: 768px) {
  .page-news__spotlight-card {
    flex-direction: row;
    align-items: stretch;
  }
  .page-news__spotlight-img-wrap {
    width: 45%;
    max-height: none;
    flex-shrink: 0;
  }
  .page-news__spotlight-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .page-news__spotlight-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
  }
  .page-news__spotlight-heading {
    font-size: 2rem;
  }

  .page-news__layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .page-news__timeline-section {
    width: var(--timeline-width);
    flex-shrink: 0;
    position: sticky;
    top: var(--space-md);
  }
  .page-news__reading-section {
    flex: 1;
    min-width: 0;
  }
  .page-news__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news__timeline {
    padding-left: calc(var(--timeline-dot-size) / 2 + 16px);
  }
  .page-news__timeline-marker {
    left: calc(-1 * (var(--timeline-dot-size) / 2 + 16px + var(--space-md) - 2px));
  }

  .page-news__decor {
    width: 400px;
    height: 240px;
    bottom: 80px;
    opacity: 0.06;
  }
}

/* ===== 桌面大屏 ≥1024px ===== */
@media (min-width: 1024px) {
  .page-news__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news__timeline-section {
    width: 300px;
  }
  .page-news__decor {
    width: 500px;
    height: 300px;
    opacity: 0.05;
  }
  .page-news__spotlight-heading {
    font-size: 2.25rem;
  }
}

/* ===== 防止横向溢出 ===== */
.page-news * {
  max-width: 100%;
  box-sizing: border-box;
}
.page-news img {
  max-width: 100%;
  height: auto;
}