/* ===== 页面专属 CSS：.page-news ===== */
.page-news {
  --news-card-border: rgba(176, 190, 197, 0.25);
  --news-card-bg: rgba(11, 12, 16, 0.85);
  --news-hero-overlay: linear-gradient(135deg, rgba(230, 57, 70, 0.55) 0%, rgba(29, 53, 87, 0.70) 100%);
  --news-filter-bg: rgba(176, 190, 197, 0.06);
  --news-filter-active: rgba(230, 57, 70, 0.20);
  --news-cat-brand: #E63946;
  --news-cat-guide: #1D3557;
  --news-cat-insight: #F4A261;

  display: block;
  max-width: var(--content-max, 1200px);
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
  color: var(--text-primary, #FFFFFF);
  font-family: var(--font-body, 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif);
  background-color: transparent;
  position: relative;
  z-index: 1;
}

/* ---- 面包屑 ---- */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 1rem;
  font-size: 0.8rem;
  color: var(--text-secondary, #B0BEC5);
}

.page-news .breadcrumb a {
  color: var(--text-secondary, #B0BEC5);
  text-decoration: none;
  transition: color 0.2s;
}

.page-news .breadcrumb a:hover {
  color: var(--primary-red, #E63946);
}

.page-news .breadcrumb .sep {
  color: var(--primary-red, #E63946);
  font-weight: 600;
}

.page-news .breadcrumb [aria-current="page"] {
  color: var(--text-primary, #FFFFFF);
  font-weight: 500;
}

/* ---- Hero 区域 ---- */
.page-news .news-hero {
  position: relative;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 2rem;
  aspect-ratio: 1200 / 400;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.30);
}

.page-news .news-hero .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .hero-overlay {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
  background: var(--news-hero-overlay);
  width: 100%;
  height: 100%;
}

.page-news .hero-overlay .section-number {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 1.1rem;
  color: var(--primary-red, #E63946);
  letter-spacing: 2px;
  margin-bottom: 0.15rem;
}

.page-news .hero-overlay h1 {
  font-family: var(--font-heading, 'Montserrat', 'PingFang SC', sans-serif);
  font-size: 2.2rem;
  font-weight: 800;
  font-style: italic;
  margin: 0;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-primary, #FFFFFF);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.40);
}

.page-news .hero-desc {
  font-size: 0.95rem;
  color: var(--text-secondary, #B0BEC5);
  margin: 0.3rem 0 0;
  letter-spacing: 1px;
}

/* ---- 筛选栏 ---- */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.25rem;
  padding: 0.5rem;
  background: var(--news-filter-bg);
  border-radius: 6px;
  border: 1px solid var(--news-card-border);
}

.page-news .filter-btn {
  font-family: var(--font-body, 'Inter', 'PingFang SC', sans-serif);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.4rem 1rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary, #B0BEC5);
  cursor: pointer;
  transition: background 0.25s, color 0.25s;
}

.page-news .filter-btn:hover {
  color: var(--text-primary, #FFFFFF);
  background: rgba(176, 190, 197, 0.10);
}

.page-news .filter-btn.is-active {
  background: var(--news-filter-active);
  color: var(--primary-red, #E63946);
  box-shadow: 0 0 8px var(--glow-red, rgba(230, 57, 70, 0.4));
}

/* ---- 区块标题 ---- */
.page-news .news-block {
  margin-bottom: 2.5rem;
}

.page-news .block-header {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--news-card-border);
  padding-bottom: 0.5rem;
}

.page-news .block-header .section-number {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary-red, #E63946);
  line-height: 1;
}

.page-news .block-header h2 {
  font-family: var(--font-heading, 'Montserrat', 'PingFang SC', sans-serif);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary, #FFFFFF);
  letter-spacing: 1px;
}

/* ---- 卡片网格 ---- */
.page-news .card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

/* ---- 新闻卡片 ---- */
.page-news .news-card {
  background: var(--news-card-bg);
  border: 1px solid var(--news-card-border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-news .news-card:hover {
  border-color: rgba(176, 190, 197, 0.45);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

.page-news .news-card details {
  display: block;
}

.page-news .news-card details summary::-webkit-details-marker {
  display: none;
}

.page-news .news-card details summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}

.page-news .news-card details summary:hover {
  background: rgba(176, 190, 197, 0.04);
}

.page-news .card-category {
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  text-transform: uppercase;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  line-height: 1.3;
  border: 1px solid transparent;
}

.page-news .card-category.cat-brand {
  color: var(--news-cat-brand);
  border-color: rgba(230, 57, 70, 0.35);
  background: rgba(230, 57, 70, 0.08);
}

.page-news .card-category.cat-guide {
  color: var(--secondary-blue, #1D3557);
  border-color: rgba(29, 53, 87, 0.35);
  background: rgba(29, 53, 87, 0.15);
}

.page-news .card-category.cat-insight {
  color: var(--news-cat-insight);
  border-color: rgba(244, 162, 97, 0.35);
  background: rgba(244, 162, 97, 0.10);
}

.page-news .card-text {
  flex: 1;
  min-width: 0;
}

.page-news .card-title {
  display: block;
  font-family: var(--font-heading, 'Montserrat', 'PingFang SC', sans-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary, #FFFFFF);
  margin-bottom: 0.15rem;
  line-height: 1.3;
}

.page-news .card-summary {
  font-size: 0.85rem;
  color: var(--text-secondary, #B0BEC5);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.45;
}

.page-news .card-arrow {
  flex-shrink: 0;
  font-size: 0.9rem;
  color: var(--text-secondary, #B0BEC5);
  transition: transform 0.3s;
}

.page-news .news-card details[open] .card-arrow {
  transform: rotate(180deg);
}

/* ---- 卡片详情 ---- */
.page-news .card-detail {
  border-top: 1px solid var(--news-card-border);
  padding: 0;
}

.page-news .detail-inner {
  padding: 1rem 1.25rem 1.25rem;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-secondary, #B0BEC5);
}

.page-news .detail-inner p {
  margin: 0 0 0.75rem;
}

.page-news .detail-inner p:last-child {
  margin-bottom: 0;
}

.page-news .detail-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 0.75rem 0;
  display: block;
  object-fit: cover;
  border: 1px solid var(--news-card-border);
}

.page-news .detail-link a {
  color: var(--primary-red, #E63946);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s, text-shadow 0.2s;
}

.page-news .detail-link a:hover {
  color: #ff6b78;
  text-shadow: 0 0 8px var(--glow-red, rgba(230, 57, 70, 0.4));
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-news {
    padding: 1.75rem 2rem 4rem;
  }

  .page-news .breadcrumb {
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
  }

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

  .page-news .hero-desc {
    font-size: 1.05rem;
  }

  .page-news .card-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .page-news .news-card details summary {
    padding: 1.15rem 1.5rem;
  }

  .page-news .card-title {
    font-size: 1.1rem;
  }

  .page-news .card-summary {
    font-size: 0.88rem;
  }

  .page-news .detail-inner {
    padding: 1.25rem 1.5rem 1.5rem;
    font-size: 0.92rem;
  }

  .page-news .block-header h2 {
    font-size: 1.65rem;
  }

  .page-news .block-header .section-number {
    font-size: 1.6rem;
  }

  .page-news .filter-bar {
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
  }

  .page-news .filter-btn {
    font-size: 0.88rem;
    padding: 0.45rem 1.25rem;
  }
}

@media (min-width: 1024px) {
  .page-news {
    padding: 2rem 2.5rem 5rem;
  }

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

  .page-news .card-grid {
    gap: 1.5rem;
  }

  .page-news .card-title {
    font-size: 1.15rem;
  }

  .page-news .detail-img {
    max-width: 80%;
  }

  .page-news .block-header {
    margin-bottom: 1.5rem;
  }

  .page-news .block-header h2 {
    font-size: 1.8rem;
  }
}