.page-news {
  --timeline-accent: var(--primary-orange);
  --timeline-line-color: rgba(255, 107, 53, 0.3);
  --timeline-dot-size: 18px;
  --timeline-card-offset: 32px;
  --insight-stat-color: var(--accent-green);
  --tag-active-bg: var(--primary-orange);
  --tag-active-text: var(--text-light);
  color: var(--text-dark);
  background: var(--bg-light);
  position: relative;
}
/* ===== 页面头部 ===== */
.page-news .news-hero {
  padding: 2rem 1.5rem 0;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #0f2a44 100%);
  position: relative;
  overflow: hidden;
}
.page-news .news-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-news .news-hero-text {
  position: relative;
  z-index: 2;
}
.page-news .breadcrumb {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 0.75rem;
}
.page-news .breadcrumb a {
  color: var(--primary-orange);
  text-decoration: none;
  transition: color 0.2s;
}
.page-news .breadcrumb a:hover {
  color: var(--accent-green);
}
.page-news .breadcrumb-sep {
  margin: 0 0.4rem;
  color: rgba(255,255,255,0.35);
}
.page-news .news-hero h1 {
  font-family: var(--font-head);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-light);
  margin: 0 0 0.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.page-news .news-hero-sub {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: rgba(255,255,255,0.8);
  max-width: 540px;
  margin: 0;
  line-height: 1.5;
}
.page-news .news-hero-visual {
  position: relative;
  z-index: 1;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: -0.5rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.page-news .news-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 220px;
  object-fit: cover;
  object-position: center 30%;
}
/* ===== 章节标签 ===== */
.page-news .section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}
.page-news .label-marker {
  width: 6px;
  height: 32px;
  background: var(--primary-orange);
  border-radius: 3px;
  flex-shrink: 0;
}
.page-news .section-label h2 {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
  letter-spacing: -0.01em;
}
/* ===== 时间线区 ===== */
.page-news .news-timeline-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
  position: relative;
}
.page-news .timeline-container {
  position: relative;
  padding-left: 28px;
}
.page-news .timeline-line {
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: linear-gradient(to bottom, var(--timeline-line-color) 0%, var(--primary-orange) 100%);
  border-radius: 2px;
  z-index: 0;
}
.page-news .timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
  padding-left: var(--timeline-card-offset);
  transition: opacity 0.3s;
}
.page-news .timeline-item:last-child {
  margin-bottom: 0;
}
.page-news .timeline-dot {
  position: absolute;
  left: -16px;
  top: 8px;
  width: var(--timeline-dot-size);
  height: var(--timeline-dot-size);
  border-radius: 50%;
  background: var(--primary-orange);
  border: 4px solid var(--bg-light);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.25);
  z-index: 2;
  transition: transform 0.3s, box-shadow 0.3s;
}
.page-news .timeline-item:hover .timeline-dot {
  transform: scale(1.2);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.35);
}
.page-news .timeline-card {
  background: var(--card-glass);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-news .timeline-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 59, 111, 0.12);
}
.page-news .timeline-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-news .timeline-badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.7rem;
  border-radius: 20px;
  background: var(--primary-orange);
  color: var(--text-light);
}
.page-news .timeline-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary-blue);
  opacity: 0.75;
}
.page-news .timeline-card-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0 0 0.4rem;
  line-height: 1.3;
}
.page-news .timeline-card-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  opacity: 0.8;
  line-height: 1.55;
  margin: 0 0 0.75rem;
}
.page-news .timeline-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}
.page-news .meta-tag {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.15rem 0.6rem;
  border-radius: 12px;
  background: rgba(0, 59, 111, 0.08);
  color: var(--primary-blue);
}
.page-news .timeline-details {
  font-family: var(--font-body);
  font-size: 0.9rem;
  margin-top: 0.25rem;
  border-top: 1px solid rgba(0,0,0,0.06);
  padding-top: 0.6rem;
}
.page-news .timeline-details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--primary-orange);
  font-size: 0.85rem;
  user-select: none;
  transition: color 0.2s;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.page-news .timeline-details summary::-webkit-details-marker {
  display: none;
}
.page-news .timeline-details summary::before {
  content: "▶";
  font-size: 0.65rem;
  transition: transform 0.25s;
}
.page-news .timeline-details[open] summary::before {
  transform: rotate(90deg);
}
.page-news .timeline-details summary:hover {
  color: var(--accent-green);
}
.page-news .details-body {
  padding: 0.75rem 0 0.25rem;
  line-height: 1.6;
  color: var(--text-dark);
  opacity: 0.85;
}
.page-news .details-body .btn-outline {
  margin-top: 0.6rem;
}
.page-news .btn-outline.btn-sm {
  font-size: 0.78rem;
  padding: 0.3rem 1rem;
}
.page-news .timeline-side-img {
  display: none;
}
/* ===== 行业观察区 ===== */
.page-news .news-insights-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
  border-top: 1px solid rgba(0, 59, 111, 0.08);
}
.page-news .insights-grid {
  display: grid;
  gap: 2rem;
}
.page-news .insight-card {
  background: var(--card-glass);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.page-news .insight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 59, 111, 0.10);
}
.page-news .insight-card-visual {
  width: 100%;
  overflow: hidden;
  max-height: 220px;
}
.page-news .insight-card-visual img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.page-news .insight-card:hover .insight-card-visual img {
  transform: scale(1.03);
}
.page-news .insight-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.page-news .insight-tag {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-orange);
  background: rgba(255, 107, 53, 0.08);
  display: inline-block;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  align-self: flex-start;
}
.page-news .insight-title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
  line-height: 1.3;
}
.page-news .insight-text {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-dark);
  opacity: 0.8;
  line-height: 1.55;
  margin: 0;
}
.page-news .insight-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(0,0,0,0.05);
  margin-top: auto;
}
.page-news .stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.page-news .stat-num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--insight-stat-color);
  line-height: 1.2;
}
.page-news .stat-label {
  font-family: var(--font-body);
  font-size: 0.7rem;
  color: var(--text-dark);
  opacity: 0.65;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-news .insight-card-body .btn-outline {
  align-self: flex-start;
  margin-top: 0.25rem;
}
/* ===== 内容索引区 ===== */
.page-news .news-index-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  border-top: 1px solid rgba(0, 59, 111, 0.08);
}
.page-news .index-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.page-news .index-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-news .tag-filter {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border: 2px solid var(--primary-blue);
  border-radius: 30px;
  background: transparent;
  color: var(--primary-blue);
  cursor: pointer;
  transition: all 0.25s ease;
  user-select: none;
}
.page-news .tag-filter:hover {
  border-color: var(--primary-orange);
  color: var(--primary-orange);
}
.page-news .tag-filter.active {
  background: var(--tag-active-bg);
  border-color: var(--tag-active-bg);
  color: var(--tag-active-text);
}
.page-news .index-visual {
  display: none;
}
.page-news .index-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.page-news .index-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  border-radius: 12px;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(0, 59, 111, 0.06);
  transition: background 0.2s, border-color 0.2s;
}
.page-news .index-item:hover {
  background: rgba(255, 107, 53, 0.04);
  border-color: rgba(255, 107, 53, 0.15);
}
.page-news .index-item-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-orange);
  flex-shrink: 0;
  opacity: 0.6;
}
.page-news .index-item-link {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-dark);
  text-decoration: none;
  flex: 1;
  transition: color 0.2s;
}
.page-news .index-item-link:hover {
  color: var(--primary-orange);
}
.page-news .index-item-tag {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 500;
  padding: 0.15rem 0.6rem;
  border-radius: 10px;
  background: rgba(0, 59, 111, 0.06);
  color: var(--primary-blue);
  flex-shrink: 0;
}
/* ===== 响应式 ≥ 720px ===== */
@media (min-width: 720px) {
  .page-news .news-hero {
    padding: 3rem 2rem 0;
  }
  .page-news .news-hero-inner {
    flex-direction: row;
    align-items: flex-end;
    gap: 3rem;
  }
  .page-news .news-hero-text {
    flex: 1 1 45%;
    padding-bottom: 1rem;
  }
  .page-news .news-hero h1 {
    font-size: 3.4rem;
  }
  .page-news .news-hero-sub {
    font-size: 1.15rem;
  }
  .page-news .news-hero-visual {
    flex: 1 1 50%;
    margin-bottom: -1px;
  }
  .page-news .news-hero-img {
    max-height: 320px;
  }
  .page-news .news-timeline-section {
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: 1fr 180px;
    gap: 2.5rem;
  }
  .page-news .timeline-container {
    padding-left: 36px;
  }
  .page-news .timeline-line {
    left: 16px;
  }
  .page-news .timeline-dot {
    left: -22px;
    width: 22px;
    height: 22px;
  }
  .page-news .timeline-card {
    padding: 1.5rem 2rem;
  }
  .page-news .timeline-card-title {
    font-size: 1.3rem;
  }
  .page-news .timeline-side-img {
    display: block;
    position: relative;
    align-self: start;
    border-radius: 16px;
    overflow: hidden;
    opacity: 0.6;
    transition: opacity 0.3s;
  }
  .page-news .timeline-side-img img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 700px;
    object-fit: cover;
    border-radius: 16px;
  }
  .page-news .timeline-side-img:hover {
    opacity: 0.9;
  }
  .page-news .news-insights-section {
    padding: 4rem 2rem;
  }
  .page-news .insights-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .page-news .insight-card {
    flex-direction: column;
  }
  .page-news .insight-card-visual {
    max-height: 200px;
  }
  .page-news .insight-card-visual img {
    height: 200px;
  }
  .page-news .news-index-section {
    padding: 4rem 2rem 5rem;
  }
  .page-news .index-wrapper {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    align-items: start;
  }
  .page-news .index-tags {
    flex-direction: column;
    gap: 0.4rem;
  }
  .page-news .tag-filter {
    width: 100%;
    text-align: left;
  }
  .page-news .index-visual {
    display: block;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    border-radius: 16px;
    overflow: hidden;
    max-width: 200px;
    opacity: 0.7;
  }
  .page-news .index-visual img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 16px;
  }
  .page-news .index-list {
    grid-column: 1 / -1;
  }
}
/* ===== 响应式 ≥ 1024px ===== */
@media (min-width: 1024px) {
  .page-news .news-hero {
    padding: 4rem 2rem 0;
  }
  .page-news .news-hero h1 {
    font-size: 4rem;
  }
  .page-news .news-hero-img {
    max-height: 400px;
  }
  .page-news .news-timeline-section {
    grid-template-columns: 1fr 240px;
    gap: 3rem;
  }
  .page-news .section-label h2 {
    font-size: 2rem;
  }
  .page-news .insights-grid {
    gap: 2.5rem;
  }
  .page-news .insight-card {
    flex-direction: row;
  }
  .page-news .insight-card-visual {
    max-height: none;
    width: 45%;
    flex-shrink: 0;
  }
  .page-news .insight-card-visual img {
    height: 100%;
    min-height: 280px;
  }
  .page-news .insight-card-body {
    padding: 1.75rem;
  }
  .page-news .index-wrapper {
    grid-template-columns: 260px 1fr 180px;
  }
  .page-news .index-visual {
    grid-column: 3;
    grid-row: 1 / 3;
    max-width: 180px;
  }
  .page-news .index-list {
    grid-column: 2;
    grid-row: 1 / 3;
  }
}