/* ===== 品牌日志专属样式 ===== */
.page-news {
  --news-hero-height: 360px;
  --news-card-radius: var(--radius-lg, 24px);
  --news-gap: 1.25rem;
  background: var(--color-bg-gradient-start, #051220);
  color: var(--color-text-primary, #fff);
  font-family: var(--font-body, 'Inter', system-ui, -apple-system, sans-serif);
  padding-bottom: 3rem;
}

/* 面包屑 */
.page-news .breadcrumb {
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  color: var(--color-text-secondary, #AABBCC);
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}
.page-news .breadcrumb a {
  color: var(--color-accent, #39FF14);
  text-decoration: none;
  transition: opacity var(--transition-fast, 0.2s ease);
}
.page-news .breadcrumb a:hover {
  opacity: 0.75;
}
.page-news .breadcrumb-sep {
  margin: 0 0.45rem;
  color: var(--color-secondary, #C0C0C0);
}

/* ===== 首屏横幅 ===== */
.page-news .news-hero {
  position: relative;
  margin-bottom: 2.5rem;
}
.page-news .hero-layout {
  position: relative;
  border-radius: var(--news-card-radius);
  overflow: hidden;
  min-height: var(--news-hero-height);
  background: var(--color-primary-dark, #051220);
}
.page-news .hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-news .hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5,18,32,0.85) 20%, rgba(10,31,63,0.45) 60%, rgba(57,255,20,0.08) 100%);
  z-index: 1;
}
.page-news .hero-text {
  position: relative;
  z-index: 2;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  min-height: var(--news-hero-height);
  box-sizing: border-box;
}
.page-news .hero-text .section-number {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent, #39FF14);
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
  text-shadow: 0 0 20px rgba(57,255,20,0.3);
}
.page-news .hero-title {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 700;
  font-size: 2.2rem;
  line-height: 1.1;
  margin: 0 0 0.4rem;
  letter-spacing: -0.02em;
  color: var(--color-text-primary, #fff);
}
.page-news .hero-desc {
  font-size: 0.95rem;
  color: var(--color-text-secondary, #AABBCC);
  margin: 0;
  max-width: 480px;
  line-height: 1.5;
}

/* ===== 通用章节头部 ===== */
.page-news .section-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid rgba(57,255,20,0.12);
  padding-bottom: 0.6rem;
}
.page-news .section-head .section-number {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-accent, #39FF14);
  letter-spacing: -0.03em;
  opacity: 0.7;
}
.page-news .section-title {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 700;
  font-size: 1.65rem;
  margin: 0;
  color: var(--color-text-primary, #fff);
  letter-spacing: -0.01em;
}

/* ===== 最新动态网格 ===== */
.page-news .latest-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}
.page-news .card {
  background: var(--color-surface-dark, #0D1B2A);
  border-radius: var(--news-card-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base, 0.35s ease), box-shadow var(--transition-base, 0.35s ease), border-color var(--transition-base, 0.35s ease);
  border: 1px solid rgba(57,255,20,0.06);
  box-shadow: var(--shadow-soft, 0 8px 24px rgba(0,0,0,0.3));
  position: relative;
}
.page-news .card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: rgba(57,255,20,0.25);
  box-shadow: var(--shadow-glow, 0 0 20px rgba(57,255,20,0.15)), var(--shadow-soft, 0 8px 24px rgba(0,0,0,0.3));
}
.page-news .card-media {
  width: 100%;
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--color-primary-light, #1A2F4F);
}
.page-news .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow, 0.55s ease);
}
.page-news .card:hover .card-media img {
  transform: scale(1.05);
}
.page-news .card-media--small {
  max-height: 180px;
  aspect-ratio: auto;
}
.page-news .card-media--small img {
  object-fit: cover;
}
.page-news .card-body {
  padding: 1.25rem 1.125rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.page-news .card-title {
  font-family: var(--font-heading, 'Montserrat', system-ui, sans-serif);
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0;
  line-height: 1.25;
  color: var(--color-text-primary, #fff);
}
.page-news .card-text {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-text-secondary, #AABBCC);
  margin: 0;
}
.page-news .tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(57,255,20,0.08);
  color: var(--color-accent, #39FF14);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm, 6px);
  align-self: flex-start;
}
.page-news .tag--accent {
  background: rgba(57,255,20,0.15);
  border: 1px solid rgba(57,255,20,0.2);
}
.page-news .btn--small {
  font-size: 0.75rem;
  padding: 0.35rem 1rem;
}
.page-news .btn--outline {
  background: transparent;
  border: 1px solid var(--color-secondary, #C0C0C0);
  color: var(--color-text-primary, #fff);
  border-radius: var(--radius-sm, 6px);
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition-fast, 0.2s ease), border-color var(--transition-fast, 0.2s ease);
  align-self: flex-start;
}
.page-news .btn--outline:hover {
  background: rgba(57,255,20,0.1);
  border-color: var(--color-accent, #39FF14);
}

/* 首条大卡片 */
.page-news .card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr;
  border-color: rgba(57,255,20,0.12);
}
.page-news .card--featured .card-media {
  aspect-ratio: 1/1;
  max-height: 280px;
}
.page-news .card--featured .card-title {
  font-size: 1.35rem;
}
.page-news .card--featured .card-text {
  font-size: 0.95rem;
}

/* 未来卡片特殊处理 */
.page-news .card--future {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px dashed rgba(57,255,20,0.15);
}
.page-news .card--future .card-media--small {
  order: -1;
  max-height: 160px;
}

/* ===== 分类索引区域 ===== */
.page-news .news-categories {
  margin-top: 2.5rem;
}

/* 筛选标签 */
.page-news .category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  position: relative;
}
.page-news .category-filters input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.page-news .category-filters label {
  display: inline-block;
  padding: 0.45rem 1.2rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-xl, 32px);
  background: var(--color-surface-dark, #0D1B2A);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--color-text-secondary, #AABBCC);
  cursor: pointer;
  transition: all var(--transition-fast, 0.2s ease);
  user-select: none;
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
}
.page-news .category-filters label:hover {
  border-color: var(--color-accent, #39FF14);
  color: var(--color-text-primary, #fff);
}
#cat-all:checked ~ label[for="cat-all"],
#cat-update:checked ~ label[for="cat-update"],
#cat-guide:checked ~ label[for="cat-guide"],
#cat-insight:checked ~ label[for="cat-insight"] {
  background: var(--color-accent, #39FF14);
  color: var(--color-primary-dark, #051220);
  border-color: var(--color-accent, #39FF14);
  box-shadow: 0 0 16px rgba(57,255,20,0.2);
}

/* 分类网格 */
.page-news .category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  transition: all var(--transition-base, 0.35s ease);
}
.page-news .card--cat {
  background: var(--color-surface-light, #1E3A5F);
  border: 1px solid rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
}
.page-news .card--cat .card-body {
  padding: 1rem;
}
.page-news .card--cat .card-title {
  font-size: 1rem;
}
.page-news .card--cat .card-text {
  font-size: 0.8rem;
}
.page-news .card--cat .card-media--square {
  aspect-ratio: 1/1;
  max-height: 180px;
  overflow: hidden;
}
.page-news .card--cat .card-media--landscape {
  aspect-ratio: 16/10;
  max-height: 200px;
  overflow: hidden;
}
.page-news .card--cat .card-media--square img,
.page-news .card--cat .card-media--landscape img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 宽卡片 */
.page-news .card--wide {
  grid-column: 1 / -1;
}

/* ---- 筛选逻辑 ---- */
#cat-all:checked ~ .category-grid .card--cat {
  display: flex;
}
#cat-update:checked ~ .category-grid .card--cat:not([data-category="update"]),
#cat-guide:checked ~ .category-grid .card--cat:not([data-category="guide"]),
#cat-insight:checked ~ .category-grid .card--cat:not([data-category="insight"]) {
  display: none;
}
#cat-update:checked ~ .category-grid .card--cat[data-category="update"],
#cat-guide:checked ~ .category-grid .card--cat[data-category="guide"],
#cat-insight:checked ~ .category-grid .card--cat[data-category="insight"] {
  display: flex;
}

/* 滚动显现 (渐进增强) */
.page-news [data-observe] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.page-news [data-observe].is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* 当用户关闭动效时保证可见 */
@media (prefers-reduced-motion: reduce) {
  .page-news [data-observe] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-news .card:hover {
    transform: none;
  }
  .page-news .card:hover .card-media img {
    transform: none;
  }
}

/* ===== 响应式：平板 ===== */
@media (min-width: 640px) {
  .page-news {
    --news-hero-height: 400px;
  }
  .page-news .hero-text {
    padding: 2.5rem 2rem;
  }
  .page-news .hero-text .section-number {
    font-size: 4.5rem;
  }
  .page-news .hero-title {
    font-size: 3rem;
  }
  .page-news .hero-desc {
    font-size: 1.05rem;
  }
  .page-news .section-head .section-number {
    font-size: 2.4rem;
  }
  .page-news .section-title {
    font-size: 2rem;
  }

  /* 最新动态：2列 */
  .page-news .latest-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-news .card--featured {
    grid-column: 1 / -1;
    grid-template-columns: 280px 1fr;
  }
  .page-news .card--featured .card-media {
    aspect-ratio: auto;
    max-height: none;
    height: 100%;
  }
  .page-news .card--featured .card-body {
    padding: 1.5rem;
  }
  .page-news .card--future {
    grid-template-columns: 1fr 160px;
  }
  .page-news .card--future .card-media--small {
    order: 1;
    max-height: none;
  }

  /* 分类网格：2列 */
  .page-news .category-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-news .card--wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .page-news .card--wide .card-media--landscape {
    aspect-ratio: auto;
    max-height: none;
    height: 100%;
  }
}

/* ===== 响应式：桌面 ===== */
@media (min-width: 1024px) {
  .page-news .container {
    max-width: var(--container-max, 1200px);
    margin: 0 auto;
    padding: 0 var(--container-padding, 1.5rem);
  }
  .page-news .hero-text {
    padding: 3rem 3rem;
  }
  .page-news .hero-text .section-number {
    font-size: 5.5rem;
  }
  .page-news .hero-title {
    font-size: 3.8rem;
  }
  .page-news .hero-desc {
    font-size: 1.15rem;
    max-width: 560px;
  }

  /* 最新动态：3列，首条跨2列 */
  .page-news .latest-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .page-news .card--featured {
    grid-column: span 2;
    grid-template-columns: 320px 1fr;
  }
  .page-news .card--featured .card-title {
    font-size: 1.55rem;
  }
  .page-news .card--future {
    grid-template-columns: 1fr 1fr;
  }
  .page-news .card--future .card-media--small {
    max-height: 200px;
  }

  /* 分类网格：3列 */
  .page-news .category-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .page-news .card--wide {
    grid-column: span 2;
    grid-template-columns: 1fr 1fr;
  }
  .page-news .card--wide .card-media--landscape {
    max-height: 260px;
  }
}

/* ===== 超宽屏微调 ===== */
@media (min-width: 1400px) {
  .page-news .hero-title {
    font-size: 4.2rem;
  }
  .page-news .card--featured {
    grid-template-columns: 360px 1fr;
  }
}