.page-news {
  --news-cyan-line: #00f5d4;
  --news-magenta-node: #ff006e;
  --news-glass-bg: rgba(18, 19, 26, 0.7);
  --news-glass-border: 1px solid rgba(0, 245, 212, 0.2);
  --news-card-hover-shadow: 0 0 20px rgba(255, 0, 110, 0.3);
  --news-timeline-width: 2px;
  --news-node-size: 14px;
  display: block;
  max-width: 100%;
  overflow-x: hidden;
}
.page-news-banner {
  position: relative;
  width: 100%;
  height: 60vh;
  min-height: 320px;
  overflow: hidden;
}
.page-news-banner-inner {
  position: relative;
  width: 100%;
  height: 100%;
}
.page-news-banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.page-news-banner-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, rgba(10, 11, 16, 0.85) 0%, rgba(18, 19, 26, 0.6) 100%);
  text-align: center;
  padding: 1.5rem;
}
.page-news-banner-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 8vw, 4.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-on-dark);
  text-shadow: 0 0 15px rgba(0, 245, 212, 0.6), 0 0 30px rgba(0, 245, 212, 0.3);
  margin: 0 0 0.5rem;
}
.page-news-banner-sub {
  font-family: var(--font-body);
  font-size: clamp(1rem, 3.5vw, 1.5rem);
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  margin: 0;
}
.page-news-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
.breadcrumb {
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.breadcrumb-link {
  color: var(--primary-cyan);
  text-decoration: none;
}
.breadcrumb-link:hover {
  color: var(--primary-magenta);
}
.breadcrumb-sep {
  margin: 0 0.5rem;
  color: var(--text-secondary);
}
.breadcrumb-current {
  color: var(--text-primary);
}
.page-news-section {
  margin-bottom: 4rem;
}
.page-news-section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-on-dark);
  text-shadow: 0 0 10px rgba(0, 245, 212, 0.5);
  margin: 0 0 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-cyan);
  position: relative;
}
.page-news-section-title::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--primary-magenta);
}
/* 时间轴布局 */
.page-news-timeline {
  position: relative;
  padding-left: 2.5rem;
}
.page-news-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.25rem;
  width: var(--news-timeline-width);
  height: 100%;
  background: var(--news-cyan-line);
  opacity: 0.4;
}
.page-news-timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  list-style: none;
}
.page-news-timeline-node {
  position: absolute;
  left: calc(-2.5rem + 1.25rem - var(--news-node-size) / 2);
  top: 0.5rem;
  width: var(--news-node-size);
  height: var(--news-node-size);
  z-index: 2;
}
.page-news-node-dot {
  display: block;
  width: var(--news-node-size);
  height: var(--news-node-size);
  border-radius: 50%;
  background: var(--news-magenta-node);
  box-shadow: 0 0 10px rgba(255, 0, 110, 0.6);
  transition: transform 0.3s ease;
}
.page-news-timeline-item[data-timeline="visible"] .page-news-node-dot {
  transform: scale(1.3);
  box-shadow: 0 0 20px rgba(255, 0, 110, 0.9);
}
.page-news-node-icon {
  display: none;
  width: 60px;
  height: 60px;
  object-fit: contain;
  position: absolute;
  left: -23px;
  top: -23px;
  opacity: 0.8;
}
@media (min-width: 768px) {
  .page-news-node-icon {
    display: block;
  }
  .page-news-node-dot {
    display: none;
  }
}
.page-news-timeline-card {
  background: var(--news-glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: var(--news-glass-border);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  transition: background 0.3s, box-shadow 0.3s, transform 0.3s;
}
.page-news-timeline-card:hover {
  background: rgba(18, 19, 26, 0.9);
  box-shadow: var(--news-card-hover-shadow);
  transform: translateY(-2px);
}
.page-news-card-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.75rem;
}
.page-news-version {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary-cyan);
  text-shadow: 0 0 6px rgba(0, 245, 212, 0.4);
  letter-spacing: 0.05em;
}
.page-news-date {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.page-news-summary {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-primary);
  margin: 0 0 0.5rem;
}
.page-news-card-details {
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
  padding: 0.75rem 0 0.25rem;
  border-top: 1px solid rgba(255, 0, 110, 0.2);
}
.page-news-card-details a {
  color: var(--primary-cyan);
  text-decoration: underline;
}
.page-news-card-details a:hover {
  color: var(--primary-magenta);
}
.page-news-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid var(--primary-magenta);
  color: var(--primary-magenta);
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
  margin-top: 0.5rem;
}
.page-news-toggle-btn:hover {
  background: var(--primary-magenta);
  color: var(--bg-dark);
}
.page-news-toggle-btn[aria-expanded="true"] {
  background: var(--primary-magenta);
  color: var(--bg-dark);
}
/* 历史归档 */
.page-news-archive-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2rem;
}
.page-news-archive-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  opacity: 0.8;
  margin-bottom: 1rem;
}
.page-news-archive-desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0;
}
.page-news-archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 640px) {
  .page-news-archive-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .page-news-archive-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.page-news-archive-item {
  background: var(--news-glass-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: var(--news-glass-border);
  border-radius: 4px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}
.page-news-archive-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--news-card-hover-shadow);
}
.page-news-archive-ver {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-cyan);
  text-shadow: 0 0 8px rgba(0, 245, 212, 0.4);
  margin-bottom: 0.25rem;
}
.page-news-archive-period {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.page-news-archive-link {
  text-decoration: none;
}
/* 动态说明 */
.page-news-purpose {
  position: relative;
}
.page-news-purpose-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 750px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  background: var(--news-glass-bg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 0, 110, 0.2);
  border-radius: 4px;
}
.page-news-purpose-icon {
  width: 200px;
  height: 200px;
  object-fit: contain;
  opacity: 0.7;
  margin-bottom: 1.5rem;
}
.page-news-purpose-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-primary);
  max-width: 600px;
  margin: 0 0 1rem;
}
.page-news-purpose-text:last-of-type {
  margin-bottom: 0;
}
.page-news-purpose-text a {
  color: var(--primary-cyan);
  text-decoration: underline;
}
.page-news-purpose-text a:hover {
  color: var(--primary-magenta);
}
/* 移动端优先调整 */
@media (max-width: 767px) {
  .page-news-banner {
    height: 50vh;
    min-height: 250px;
  }
  .page-news-container {
    padding: 1.5rem 1rem 3rem;
  }
  .page-news-timeline {
    padding-left: 1.75rem;
  }
  .page-news-timeline::before {
    left: 0.75rem;
  }
  .page-news-timeline-node {
    left: calc(-1.75rem + 0.75rem - var(--news-node-size) / 2);
  }
  .page-news-card-header {
    flex-direction: column;
    gap: 0.25rem;
  }
  .page-news-archive-icon {
    width: 80px;
    height: 80px;
  }
  .page-news-purpose-icon {
    width: 150px;
    height: 150px;
  }
}
/* 桌面增强 */
@media (min-width: 768px) {
  .page-news-timeline {
    padding-left: 4rem;
  }
  .page-news-timeline::before {
    left: 2rem;
  }
  .page-news-timeline-node {
    left: calc(-4rem + 2rem - 30px);
    width: 60px;
    height: 60px;
  }
  .page-news-timeline-card {
    padding: 1.5rem 2rem;
  }
}
/* 其他共享类复用 */
.page-news .card {
  background: var(--card-bg);
}
.page-news .btn-magenta {
  background: var(--primary-magenta);
  color: var(--bg-dark);
  border: 1px solid var(--primary-magenta);
  padding: 0.5rem 1.2rem;
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background 0.3s, box-shadow 0.3s;
  cursor: pointer;
  display: inline-block;
  text-align: center;
}
.page-news .btn-magenta:hover {
  background: transparent;
  color: var(--primary-magenta);
  box-shadow: 0 0 10px rgba(255, 0, 110, 0.5);
}
.page-news .grid-3 {
  display: grid;
  gap: 1rem;
}
</style>
```