.page-news {
  --news-hero-bg: var(--primary, #0B3D2E);
  --news-text-on-hero: var(--text-on-primary, #FFFFFF);
  --news-filter-bg: var(--bg-light, #F5F5F5);
  --news-card-bg: var(--bg-white, #FFFFFF);
  --news-card-border: var(--border, #D0D0D0);
  --news-accent: var(--accent, #FF6B35);
  --news-accent-light: var(--accent-light, #FF8C5A);
  --news-text-dark: var(--text-dark, #1A1A1A);
  --news-text-medium: var(--text-medium, #4A4A4A);
  --news-font-headings: var(--font-headings, Impact, 'Arial Black', sans-serif);
  --news-font-body: var(--font-body, Georgia, 'Times New Roman', serif);
  --news-radius: var(--radius, 4px);
  --news-shadow: var(--shadow-sm, 0 2px 8px rgba(0,0,0,0.08));
  --news-shadow-hover: var(--shadow-md, 0 4px 20px rgba(0,0,0,0.12));
  --news-transition: var(--transition, 0.25s ease);
  --news-marker-size: 20px;
  --news-line-offset: 28px;
}
.page-news {
  background: var(--bg-light, #F5F5F5);
  padding-bottom: 3rem;
}
.page-news__hero {
  background: var(--news-hero-bg);
  padding: 2rem 0 1.5rem;
  position: relative;
  overflow: hidden;
}
.page-news__hero::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, transparent 40%, rgba(255,107,53,0.15) 100%);
  pointer-events: none;
}
.page-news__hero .breadcrumb {
  margin-bottom: 0.75rem;
}
.page-news__hero .breadcrumb-link {
  color: rgba(255,255,255,0.7);
  font-family: var(--news-font-body);
  font-size: 0.85rem;
  text-decoration: none;
}
.page-news__hero .breadcrumb-link:hover,
.page-news__hero .breadcrumb-link:focus {
  color: var(--news-accent);
  text-decoration: underline;
}
.page-news__hero .breadcrumb-item {
  color: rgba(255,255,255,0.5);
  font-family: var(--news-font-body);
  font-size: 0.85rem;
}
.page-news__hero .breadcrumb-link::after {
  content: '>';
  margin: 0 0.5rem;
  color: rgba(255,255,255,0.3);
}
.page-news__title {
  font-family: var(--news-font-headings);
  font-size: 2.2rem;
  color: var(--news-text-on-hero);
  margin: 0 0 0.25rem;
  line-height: 1.15;
  letter-spacing: 0.02em;
}
.page-news__subtitle {
  font-family: var(--news-font-body);
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  margin: 0;
  letter-spacing: 0.04em;
}
.page-news__filter-wrap {
  position: relative;
  z-index: 2;
  margin-top: -1.2rem;
  margin-bottom: 1.5rem;
}
.page-news__filters {
  display: flex;
  gap: 0.4rem;
  background: var(--news-card-bg);
  padding: 0.4rem;
  border-radius: var(--news-radius);
  box-shadow: var(--news-shadow);
  border: 1px solid var(--news-card-border);
  flex-wrap: wrap;
  max-width: 100%;
  overflow-x: auto;
}
.page-news__filter-btn {
  font-family: var(--news-font-headings);
  font-size: 0.8rem;
  padding: 0.5rem 1.2rem;
  border: none;
  background: transparent;
  color: var(--news-text-medium);
  cursor: pointer;
  border-radius: calc(var(--news-radius) - 2px);
  transition: background var(--news-transition), color var(--news-transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.page-news__filter-btn:hover,
.page-news__filter-btn:focus-visible {
  background: var(--news-filter-bg);
  color: var(--news-text-dark);
  outline: 2px solid var(--news-accent);
  outline-offset: -2px;
}
.page-news__filter-btn.is-active {
  background: var(--news-hero-bg);
  color: var(--news-text-on-hero);
}
.page-news__timeline {
  position: relative;
  padding: 0.5rem 0 1rem;
}
.page-news__line-svg {
  display: none;
  position: absolute;
  left: 2.2rem;
  top: 0;
  bottom: 0;
  width: 2px;
  pointer-events: none;
}
.page-news__line-svg svg {
  width: 100%;
  height: 100%;
}
.page-news__item {
  position: relative;
  margin-bottom: 2.5rem;
  scroll-margin-top: 2rem;
}
.page-news__item:last-child {
  margin-bottom: 0;
}
.page-news__item-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--news-card-bg);
  border: 1px solid var(--news-card-border);
  border-radius: var(--news-radius);
  box-shadow: var(--news-shadow);
  transition: box-shadow var(--news-transition), transform var(--news-transition);
  position: relative;
  padding: 1.25rem 1rem;
}
.page-news__item-inner:hover {
  box-shadow: var(--news-shadow-hover);
  transform: translateY(-2px);
}
.page-news__item-marker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}
.page-news__marker-dot {
  width: var(--news-marker-size);
  height: var(--news-marker-size);
  border-radius: 50%;
  background: var(--news-hero-bg);
  border: 3px solid var(--news-accent);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.page-news__marker-label {
  font-family: var(--news-font-headings);
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--news-accent);
  letter-spacing: 0.08em;
  line-height: 1;
}
.page-news__item-content {
  flex: 1;
  min-width: 0;
}
.page-news__item-content .section-title {
  font-family: var(--news-font-headings);
  font-size: 0.85rem;
  color: var(--news-accent);
  margin: 0 0 0.5rem;
  padding-left: 0.6rem;
  border-left: 3px solid var(--news-accent);
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-news__item-heading {
  font-family: var(--news-font-headings);
  font-size: 1.25rem;
  color: var(--news-text-dark);
  margin: 0 0 0.6rem;
  line-height: 1.25;
}
.page-news__item-summary {
  font-family: var(--news-font-body);
  font-size: 0.95rem;
  color: var(--news-text-medium);
  line-height: 1.6;
  margin: 0 0 0.75rem;
}
.page-news__item-detail {
  font-family: var(--news-font-body);
  font-size: 0.9rem;
  color: var(--news-text-dark);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease, opacity 0.3s ease, padding 0.3s ease;
  opacity: 0;
  padding: 0 0.25rem;
}
.page-news__item-detail p {
  margin: 0 0 0.75rem;
}
.page-news__item-detail p:last-child {
  margin-bottom: 0;
}
.page-news__item.is-expanded .page-news__item-detail {
  max-height: 600px;
  opacity: 1;
  padding: 0.75rem 0.25rem 0.25rem;
}
.page-news__toggle {
  font-family: var(--news-font-headings);
  font-size: 0.75rem;
  padding: 0.4rem 1rem;
  border: 2px solid var(--news-accent);
  background: transparent;
  color: var(--news-accent);
  cursor: pointer;
  border-radius: var(--news-radius);
  transition: background var(--news-transition), color var(--news-transition);
  margin-top: 0.25rem;
  display: inline-block;
}
.page-news__toggle:hover,
.page-news__toggle:focus-visible {
  background: var(--news-accent);
  color: #fff;
  outline: none;
}
.page-news__toggle:focus-visible {
  outline: 3px solid var(--news-accent);
  outline-offset: 2px;
}
.page-news__item.is-expanded .page-news__toggle {
  background: var(--news-hero-bg);
  border-color: var(--news-hero-bg);
  color: var(--news-text-on-hero);
}
.page-news__item-image {
  width: 100%;
  border-radius: var(--news-radius);
  overflow: hidden;
  flex-shrink: 0;
}
.page-news__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--news-radius);
}
.page-news__chart {
  margin: 1rem 0 0.5rem;
  background: var(--news-filter-bg);
  border: 1px solid var(--news-card-border);
  border-radius: var(--news-radius);
  padding: 1rem 0.75rem 0.25rem;
  position: relative;
  min-height: 100px;
}
.page-news__chart-line {
  position: relative;
  height: 80px;
  margin: 0 0.5rem;
}
.page-news__chart-point {
  position: absolute;
  bottom: var(--y, 50%);
  left: var(--x, 0);
  width: 10px;
  height: 10px;
  background: var(--news-accent);
  border: 2px solid var(--news-hero-bg);
  border-radius: 50%;
  transform: translate(-50%, 50%);
  z-index: 2;
  transition: transform 0.2s ease;
}
.page-news__chart-point::before {
  content: '';
  position: absolute;
  bottom: 50%;
  left: 50%;
  width: calc(100vw * 0.65);
  height: 2px;
  background: var(--news-hero-bg);
  transform-origin: left center;
  pointer-events: none;
  opacity: 0.35;
}
.page-news__chart-point:first-child::before {
  display: none;
}
.page-news__chart-point::after {
  content: attr(style);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--news-font-body);
  font-size: 0.65rem;
  color: var(--news-text-medium);
  white-space: nowrap;
}
.page-news__chart-labels {
  display: flex;
  justify-content: space-between;
  padding: 0.35rem 0.5rem 0;
  font-family: var(--news-font-body);
  font-size: 0.7rem;
  color: var(--news-text-medium);
  border-top: 1px solid var(--news-card-border);
  margin-top: 0.25rem;
}
.page-news__footnote {
  margin-top: 2.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--news-card-border);
}
.page-news__footnote-text {
  font-family: var(--news-font-body);
  font-size: 0.85rem;
  color: var(--news-text-medium);
  text-align: center;
  margin: 0;
  line-height: 1.7;
}
.page-news__link {
  color: var(--news-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--news-transition);
}
.page-news__link:hover,
.page-news__link:focus-visible {
  color: var(--news-hero-bg);
}
@media (min-width: 640px) {
  .page-news__title {
    font-size: 2.8rem;
  }
  .page-news__subtitle {
    font-size: 1.05rem;
  }
  .page-news__filters {
    gap: 0.5rem;
    padding: 0.5rem;
  }
  .page-news__filter-btn {
    font-size: 0.85rem;
    padding: 0.55rem 1.5rem;
  }
  .page-news__item-inner {
    padding: 1.5rem 1.25rem;
  }
  .page-news__item-heading {
    font-size: 1.35rem;
  }
  .page-news__chart-point::before {
    width: calc(100vw * 0.35);
  }
}
@media (min-width: 900px) {
  .page-news__hero {
    padding: 2.5rem 0 2rem;
  }
  .page-news__title {
    font-size: 3.2rem;
  }
  .page-news__subtitle {
    font-size: 1.1rem;
  }
  .page-news__filter-wrap {
    margin-bottom: 2rem;
  }
  .page-news__filters {
    gap: 0.75rem;
    padding: 0.6rem;
    justify-content: center;
  }
  .page-news__filter-btn {
    font-size: 0.9rem;
    padding: 0.6rem 1.8rem;
  }
  .page-news__timeline {
    padding: 1rem 0 2rem;
  }
  .page-news__line-svg {
    display: block;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
  }
  .page-news__item-inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem 1.5rem;
  }
  .page-news__item-image {
    width: 380px;
    min-width: 280px;
  }
  .page-news__item--reverse .page-news__item-inner {
    flex-direction: row-reverse;
  }
  .page-news__item-marker {
    position: absolute;
    left: 50%;
    top: 2rem;
    transform: translateX(-50%);
    flex-direction: column;
    gap: 0.25rem;
    z-index: 3;
  }
  .page-news__marker-dot {
    width: 24px;
    height: 24px;
    border-width: 4px;
  }
  .page-news__marker-label {
    font-size: 0.65rem;
  }
  .page-news__item-content {
    width: calc(50% - 3rem);
    padding-right: 0.5rem;
  }
  .page-news__item--reverse .page-news__item-content {
    padding-right: 0;
    padding-left: 0.5rem;
  }
  .page-news__item-image {
    width: calc(50% - 3rem);
    min-width: 0;
  }
  .page-news__item-heading {
    font-size: 1.5rem;
  }
  .page-news__chart-point::before {
    width: calc(100vw * 0.18);
  }
  .page-news__footnote-text {
    font-size: 0.9rem;
    max-width: 600px;
    margin: 0 auto;
  }
}
@media (min-width: 1200px) {
  .page-news__title {
    font-size: 3.6rem;
  }
  .page-news__item-inner {
    padding: 2.5rem 2rem;
    gap: 2rem;
  }
  .page-news__item-image {
    width: 420px;
  }
  .page-news__item-content {
    width: calc(50% - 3.5rem);
  }
  .page-news__item-heading {
    font-size: 1.65rem;
  }
}
</style>

/* 页面专属 CSS 已在上方完整定义，作用域限定 .page-news */

/* 所有样式已在 .page-news 作用域内完整定义，无需额外样式 */

.page-news {
  --x: inherit;
  --y: inherit;
}