/* ===== page-news 专属样式 ===== */
.page-news {
  --news-timeline-dot-size: 14px;
  --news-timeline-line-width: 2px;
  --news-label-min-width: 48px;
  --news-card-gap: 16px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xl);
}

.page-news .news-hero-text {
  margin-bottom: var(--spacing-md);
}

.page-news .news-hero h1 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-3xl);
  line-height: 1.15;
  color: var(--color-primary);
  margin: 0 0 var(--spacing-xs);
}

.page-news .news-hero-desc {
  font-family: var(--font-body);
  font-weight: var(--font-weight-light);
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 480px;
}

/* 筛选标签 */
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.page-news .news-filter {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  padding: var(--spacing-xs) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-duration) var(--easing),
              color var(--transition-duration) var(--easing),
              border-color var(--transition-duration) var(--easing);
}

.page-news .news-filter:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-news .news-filter.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* 首屏主图 */
.page-news .news-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

/* ---------- 时间线 ---------- */
.page-news .news-timeline {
  position: relative;
}

/* 每个板块 */
.page-news .timeline-section {
  position: relative;
  padding-bottom: var(--spacing-2xl);
}

.page-news .timeline-section-title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  color: var(--color-primary);
  margin: 0 0 var(--spacing-lg);
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  position: relative;
  z-index: 2;
  background: var(--color-bg);
  padding-right: var(--spacing-md);
}

.page-news .timeline-section-title .mono {
  font-family: var(--font-mono);
  font-size: var(--font-size-lg);
  color: var(--color-accent);
}

/* 条目容器 */
.page-news .timeline-entries {
  position: relative;
  padding-left: calc(var(--news-label-min-width) + var(--news-card-gap) + var(--news-timeline-dot-size));
}

/* 竖线 */
.page-news .timeline-entries::before {
  content: '';
  position: absolute;
  left: calc(var(--news-label-min-width) + var(--news-card-gap) + var(--news-timeline-dot-size) / 2 - var(--news-timeline-line-width) / 2);
  top: 0;
  bottom: 0;
  width: var(--news-timeline-line-width);
  background: var(--color-border);
}

/* 每个条目 */
.page-news .timeline-item {
  position: relative;
  margin-bottom: var(--spacing-lg);
  transition: opacity var(--transition-duration) var(--easing);
}

.page-news .timeline-item[data-hidden] {
  display: none;
}

/* 圆点 */
.page-news .timeline-dot {
  position: absolute;
  left: calc(var(--news-label-min-width) + var(--news-card-gap) + var(--news-timeline-dot-size) / 2 - var(--news-timeline-dot-size) / 2);
  top: 18px;
  width: var(--news-timeline-dot-size);
  height: var(--news-timeline-dot-size);
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  z-index: 3;
  flex-shrink: 0;
}

/* 赛季标签 */
.page-news .timeline-label {
  position: absolute;
  left: 0;
  top: 16px;
  width: var(--news-label-min-width);
  text-align: right;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-secondary);
  line-height: var(--news-timeline-dot-size);
  z-index: 2;
}

/* 卡片 */
.page-news .timeline-card {
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-light);
}

.page-news .timeline-card .card-body {
  padding: var(--spacing-md);
}

.page-news .timeline-card-title {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  color: var(--color-primary);
  margin: 0 0 var(--spacing-xs);
  line-height: 1.3;
}

.page-news .timeline-card-summary {
  font-family: var(--font-body);
  font-weight: var(--font-weight-light);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-sm);
}

/* 卡片内图片 */
.page-news .timeline-card-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  margin: var(--spacing-sm) 0;
  border: 1px solid var(--color-border);
}

/* 展开内容 */
.page-news .timeline-expand-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-duration) var(--easing),
              margin var(--transition-duration) var(--easing);
  margin-top: 0;
}

.page-news .timeline-expand-content p {
  font-family: var(--font-body);
  font-weight: var(--font-weight-light);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  line-height: 1.7;
  margin: 0 0 var(--spacing-sm);
}

.page-news .timeline-expand-content .btn {
  margin-top: var(--spacing-xs);
}

.page-news .timeline-item[data-expanded] .timeline-expand-content {
  max-height: 600px;
  margin-top: var(--spacing-sm);
}

/* 展开按钮 */
.page-news .timeline-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: none;
  border: none;
  padding: var(--spacing-xs) 0;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-accent);
  transition: color var(--transition-duration) var(--easing);
}

.page-news .timeline-expand-btn:hover {
  color: var(--color-primary);
}

.page-news .expand-label {
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-news .expand-icon {
  display: inline-block;
  width: 12px;
  height: 12px;
  position: relative;
  transition: transform var(--transition-duration) var(--easing);
}

.page-news .expand-icon::before,
.page-news .expand-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 1px;
}

.page-news .expand-icon::before {
  width: 2px;
  height: 10px;
  top: 1px;
  left: 5px;
  transition: height var(--transition-duration) var(--easing);
}

.page-news .expand-icon::after {
  width: 10px;
  height: 2px;
  top: 5px;
  left: 1px;
}

.page-news .timeline-item[data-expanded] .expand-icon {
  transform: rotate(45deg);
}

.page-news .timeline-item[data-expanded] .expand-icon::before {
  height: 0;
}

/* 按钮覆盖（可展开区域点击整块触发） */
.page-news .timeline-expand-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- 统计区域 ---------- */
.page-news .timeline-stats {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.page-news .stats-card.card {
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-bg);
}

.page-news .stats-card .card-body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.page-news .stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.page-news .stat-item {
  text-align: center;
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.page-news .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  line-height: 1.1;
}

.page-news .stat-label {
  display: block;
  font-family: var(--font-body);
  font-weight: var(--font-weight-light);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

.page-news .stats-chart-img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: contain;
  margin: 0 auto;
  border: 1px solid var(--color-border);
}

/* ---------- 响应式 ---------- */
/* 桌面端 ≥ 768px */
@media (min-width: 768px) {
  .page-news {
    --news-label-min-width: 72px;
    --news-card-gap: 24px;
  }

  .page-news .news-hero {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
  }

  .page-news .news-hero-text {
    flex: 1 1 60%;
    margin-bottom: 0;
  }

  .page-news .news-hero h1 {
    font-size: 3rem;
  }

  .page-news .news-hero-desc {
    font-size: var(--font-size-lg);
  }

  .page-news .news-filters {
    flex: 0 0 auto;
    margin-bottom: 0;
  }

  .page-news .news-hero-img {
    width: 100%;
    margin-top: var(--spacing-lg);
  }

  .page-news .timeline-section-title {
    font-size: var(--font-size-2xl);
  }

  .page-news .timeline-card-title {
    font-size: var(--font-size-md);
  }

  .page-news .timeline-card .card-body {
    padding: var(--spacing-lg);
  }

  .page-news .timeline-expand-content p {
    font-size: var(--font-size-base);
  }

  .page-news .stats-card .card-body {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-news .stats-grid {
    grid-template-columns: repeat(4, 1fr);
    flex: 1;
  }

  .page-news .stats-chart-img {
    flex-shrink: 0;
    margin: 0 0 0 var(--spacing-lg);
  }

  .page-news .stat-value {
    font-size: var(--font-size-3xl);
  }

  .page-news .timeline-item {
    margin-bottom: var(--spacing-xl);
  }
}

/* 桌面大屏 ≥ 1024px */
@media (min-width: 1024px) {
  .page-news {
    --news-label-min-width: 96px;
    --news-card-gap: 32px;
  }

  .page-news .news-hero h1 {
    font-size: 3.5rem;
  }

  .page-news .timeline-entries {
    padding-left: calc(var(--news-label-min-width) + var(--news-card-gap) + var(--news-timeline-dot-size) + 8px);
  }

  .page-news .timeline-label {
    font-size: var(--font-size-base);
  }
}