/* ===== 页面作用域：page-news ===== */
.page-news {
  display: block;
  width: 100%;
  background: var(--ml-bg-dark, #0D0D0D);
  color: var(--ml-text-primary, #FFFFFF);
  font-family: var(--ml-font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif);
  line-height: 1.6;
}

.page-news__inner {
  padding: 1.5rem 1rem 3rem;
  max-width: var(--ml-max-width, 1200px);
  margin: 0 auto;
}

/* ---------- 面包屑 ---------- */
.page-news__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
}
.page-news__breadcrumb-link {
  color: var(--ml-gold, #FFD700);
  text-decoration: none;
  transition: opacity 0.2s;
}
.page-news__breadcrumb-link:hover {
  opacity: 0.75;
}
.page-news__breadcrumb-sep {
  opacity: 0.5;
}
.page-news__breadcrumb-current {
  color: var(--ml-text-primary, #FFFFFF);
  opacity: 0.9;
}

/* ---------- 首屏标题 ---------- */
.page-news__hero {
  margin-bottom: 3rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--ml-border-subtle, #333333);
}
.page-news__hero-title {
  font-size: 2.25rem;
  font-style: italic;
  font-weight: 800;
  color: var(--ml-red, #D7001D);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.75rem;
}
.page-news__hero-sub {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ml-gold, #FFD700);
  margin: 0 0 0.5rem;
}
.page-news__hero-desc {
  font-size: 0.9375rem;
  color: var(--ml-text-secondary, #B0B0B0);
  max-width: 640px;
  margin: 0;
}

/* ---------- 通用章节标题 ---------- */
.page-news__section-heading {
  font-size: 1.75rem;
  font-style: italic;
  font-weight: 800;
  color: var(--ml-text-primary, #FFFFFF);
  margin: 0 0 0.5rem;
  position: relative;
  display: inline-block;
}
.page-news__section-heading::after {
  content: '';
  display: block;
  width: 60%;
  height: 3px;
  background: var(--ml-gold-gradient, linear-gradient(135deg, #FFD700, #FFA500));
  margin-top: 0.25rem;
  border-radius: 2px;
}
.page-news__section-desc {
  font-size: 0.9375rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin: 0 0 2rem;
  max-width: 560px;
}

/* ---------- 时间线区域 ---------- */
.page-news__timeline-section {
  margin-bottom: 4rem;
}

.page-news__timeline {
  position: relative;
  padding-left: 2rem;
}

/* 时间线垂直轨道 */
.page-news__timeline::before {
  content: '';
  position: absolute;
  left: 0.625rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--ml-red, #D7001D), var(--ml-gold, #FFD700), transparent);
  opacity: 0.6;
}

/* 时间线节点 */
.page-news__tl-node {
  position: relative;
  display: flex;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}
.page-news__tl-node:last-child {
  margin-bottom: 0;
}

/* 标记点 */
.page-news__tl-marker {
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 1.25rem;
}
.page-news__tl-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ml-gold, #FFD700);
  border: 2px solid var(--ml-red, #D7001D);
  z-index: 1;
  flex-shrink: 0;
}
.page-news__tl-line {
  width: 2px;
  flex: 1;
  min-height: 2rem;
  background: linear-gradient(to bottom, var(--ml-gold, #FFD700), transparent);
  opacity: 0.35;
}
.page-news__tl-line--end {
  display: none;
}

/* 时间线卡片 */
.page-news__tl-card {
  flex: 1;
  padding: 1.25rem;
  background: var(--ml-surface-dark, #1E1E1E);
  border-radius: var(--ml-radius-md, 16px);
  border: 1px solid var(--ml-border-subtle, #333333);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-news__tl-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(215, 0, 29, 0.15);
}

.page-news__tl-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.page-news__tl-date {
  font-size: 0.8125rem;
  color: var(--ml-text-secondary, #B0B0B0);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.page-news__tl-tag {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.4;
}
.page-news__tl-tag--red {
  background: rgba(215, 0, 29, 0.2);
  color: var(--ml-red, #D7001D);
  border: 1px solid rgba(215, 0, 29, 0.3);
}
.page-news__tl-tag--gold {
  background: rgba(255, 215, 0, 0.15);
  color: var(--ml-gold, #FFD700);
  border: 1px solid rgba(255, 215, 0, 0.25);
}
.page-news__tl-card-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ml-text-primary, #FFFFFF);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}
.page-news__tl-card-text {
  font-size: 0.875rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin: 0 0 1rem;
  line-height: 1.5;
}
.page-news__tl-card-img {
  margin-bottom: 1rem;
  border-radius: var(--ml-radius-sm, 8px);
  overflow: hidden;
}
.page-news__tl-card-img img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--ml-radius-sm, 8px);
}
.page-news__tl-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
}

/* ---------- 深度解析 ---------- */
.page-news__analysis-section {
  margin-bottom: 4rem;
}

.page-news__analysis-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-news__analysis-card {
  padding: 1.5rem;
  background: var(--ml-surface-dark, #1E1E1E);
  border-radius: var(--ml-radius-lg, 24px);
  border: 1px solid var(--ml-border-subtle, #333333);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-news__analysis-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(215, 0, 29, 0.12);
}
.page-news__analysis-card--wide {
  grid-column: 1 / -1;
}

.page-news__analysis-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.page-news__analysis-tag {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(255, 215, 0, 0.12);
  color: var(--ml-gold, #FFD700);
  border: 1px solid rgba(255, 215, 0, 0.2);
}
.page-news__analysis-tag--def {
  background: rgba(0, 255, 136, 0.1);
  color: var(--ml-data-highlight, #00FF88);
  border-color: rgba(0, 255, 136, 0.2);
}
.page-news__analysis-tag--combo {
  background: rgba(215, 0, 29, 0.15);
  color: var(--ml-red, #D7001D);
  border-color: rgba(215, 0, 29, 0.25);
}
.page-news__analysis-date {
  font-size: 0.75rem;
  color: var(--ml-text-secondary, #B0B0B0);
  font-weight: 500;
}

.page-news__analysis-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ml-text-primary, #FFFFFF);
  margin: 0 0 0.75rem;
  line-height: 1.3;
}
.page-news__analysis-text {
  font-size: 0.875rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin: 0 0 1.25rem;
  line-height: 1.6;
}
.page-news__analysis-chart {
  margin-bottom: 1.25rem;
  border-radius: var(--ml-radius-sm, 8px);
  overflow: hidden;
}
.page-news__analysis-chart img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--ml-radius-sm, 8px);
}
.page-news__analysis-chart--wide img {
  max-height: 320px;
  object-fit: cover;
}

.page-news__analysis-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.75rem;
  border-top: 1px solid var(--ml-border-subtle, #333333);
}
.page-news__analysis-source {
  font-size: 0.75rem;
  color: var(--ml-text-secondary, #B0B0B0);
  font-style: italic;
}
.page-news__analysis-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
}

/* ---------- 数据索引（标签页） ---------- */
.page-news__index-section {
  margin-bottom: 3rem;
}

.page-news__index-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--ml-radius-xl, 32px);
  padding: 0.25rem;
}
.page-news__index-tab {
  flex: 1 0 auto;
  min-width: 70px;
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: var(--ml-radius-xl, 32px);
  background: transparent;
  color: var(--ml-text-secondary, #B0B0B0);
  font-family: var(--ml-font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s, color 0.25s;
  text-align: center;
}
.page-news__index-tab:hover {
  color: var(--ml-text-primary, #FFFFFF);
  background: rgba(255, 255, 255, 0.06);
}
.page-news__index-tab[aria-selected="true"] {
  background: var(--ml-red, #D7001D);
  color: #FFFFFF;
}

.page-news__index-panels {
  margin-top: 0.5rem;
}

.page-news__index-panel[hidden] {
  display: none;
}

.page-news__index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news__index-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.15s;
  flex-wrap: wrap;
}
.page-news__index-item:last-child {
  border-bottom: none;
}
.page-news__index-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.page-news__index-date {
  font-size: 0.8125rem;
  color: var(--ml-gold, #FFD700);
  font-weight: 600;
  min-width: 4.2rem;
  flex-shrink: 0;
}
.page-news__index-label {
  font-size: 0.875rem;
  color: var(--ml-text-primary, #FFFFFF);
  flex: 1;
}
.page-news__index-badge {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.5;
  flex-shrink: 0;
}
.page-news__index-badge--red {
  background: rgba(215, 0, 29, 0.2);
  color: var(--ml-red, #D7001D);
  border: 1px solid rgba(215, 0, 29, 0.3);
}
.page-news__index-badge--gold {
  background: rgba(255, 215, 0, 0.15);
  color: var(--ml-gold, #FFD700);
  border: 1px solid rgba(255, 215, 0, 0.25);
}

.page-news__index-more {
  font-size: 0.8125rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin: 1rem 0 0;
  padding: 0 1rem;
}
.page-news__index-link {
  color: var(--ml-gold, #FFD700);
  text-decoration: none;
  font-weight: 600;
}
.page-news__index-link:hover {
  text-decoration: underline;
}

/* ---------- 底部信任声明 ---------- */
.page-news__trust {
  margin-top: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--ml-border-subtle, #333333);
  text-align: center;
}
.page-news__trust-text {
  font-size: 0.875rem;
  color: var(--ml-text-secondary, #B0B0B0);
  margin: 0 0 0.25rem;
}
.page-news__trust-timestamp {
  font-size: 0.75rem;
  color: rgba(176, 176, 176, 0.6);
  margin: 0;
}

/* ===== 响应式：平板及以上 ===== */
@media (min-width: 640px) {
  .page-news__inner {
    padding: 2rem 1.5rem 4rem;
  }

  .page-news__hero-title {
    font-size: 3rem;
  }
  .page-news__hero-sub {
    font-size: 1.375rem;
  }

  .page-news__section-heading {
    font-size: 2rem;
  }

  /* 时间线调整 */
  .page-news__timeline {
    padding-left: 3rem;
  }
  .page-news__timeline::before {
    left: 1rem;
  }
  .page-news__tl-marker {
    left: -3rem;
    width: 2rem;
  }
  .page-news__tl-dot {
    width: 14px;
    height: 14px;
  }
  .page-news__tl-card {
    padding: 1.5rem;
  }
  .page-news__tl-card-title {
    font-size: 1.125rem;
  }

  /* 分析网格 2列 */
  .page-news__analysis-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-news__analysis-card--wide {
    grid-column: 1 / -1;
  }
  .page-news__analysis-title {
    font-size: 1.375rem;
  }

  /* 索引 tab 更宽松 */
  .page-news__index-tab {
    min-width: 90px;
    padding: 0.7rem 1.75rem;
    font-size: 0.9375rem;
  }

  .page-news__index-item {
    padding: 1rem 1.25rem;
  }
}

/* ===== 响应式：桌面 ===== */
@media (min-width: 1024px) {
  .page-news__inner {
    padding: 2.5rem 2rem 5rem;
  }

  .page-news__hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: end;
    padding-bottom: 2rem;
  }
  .page-news__hero-title {
    font-size: 3.5rem;
    margin-bottom: 0;
  }
  .page-news__hero-sub {
    grid-column: 2;
    grid-row: 1;
    font-size: 1.5rem;
    margin: 0;
    align-self: end;
  }
  .page-news__hero-desc {
    grid-column: 2;
    grid-row: 2;
    margin: 0;
  }

  .page-news__section-heading {
    font-size: 2.25rem;
  }

  /* 分析网格 3列，宽卡片占2列 */
  .page-news__analysis-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .page-news__analysis-card--wide {
    grid-column: span 2;
  }

  /* 时间线卡片更宽裕 */
  .page-news__tl-card {
    padding: 1.75rem;
  }
  .page-news__tl-card-img {
    max-width: 480px;
  }

  /* 索引列表更紧凑 */
  .page-news__index-item {
    padding: 0.9rem 1.5rem;
  }
}

/* ===== 交互：悬停时间线节点增强 ===== */
@media (hover: hover) {
  .page-news__tl-node:hover .page-news__tl-dot {
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.6);
    transform: scale(1.15);
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .page-news__tl-card-link:hover,
  .page-news__analysis-link:hover {
    opacity: 0.85;
  }
}

/* ===== 渐进增强：减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-news__tl-card,
  .page-news__analysis-card,
  .page-news__tl-dot {
    transition: none !important;
    transform: none !important;
  }
  .page-news__tl-node:hover .page-news__tl-dot {
    transform: none;
  }
}