/* ===== 页面专属：新闻动态 ===== */
.page-news {
  --np-primary: #1B5E20;
  --np-accent: #FFD700;
  --np-accent-light: #FFEC8B;
  --np-dark: #0D3310;
  --np-neutral: #333333;
  --np-muted: #666666;
  --np-light: #F5F5F5;
  --np-bg: #FAFAFA;
  --np-radius: 20px;
  --np-radius-sm: 12px;
  --np-transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.25rem 2rem;
  font-family: var(--font-base, 'Inter', 'SF Pro', sans-serif);
  color: var(--np-neutral);
  background: var(--np-bg);
}

/* ---- 面包屑（继承共享样式增强） ---- */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  color: var(--np-muted);
}
.page-news .breadcrumb a {
  color: var(--np-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--np-transition);
}
.page-news .breadcrumb a:hover {
  border-color: var(--np-primary);
}
.page-news .breadcrumb [aria-current="page"] {
  color: var(--np-neutral);
  font-weight: 500;
}

/* ---- 页面标题 ---- */
.page-news__title {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--np-dark);
  margin: 0 0 0.3rem;
  line-height: 1.15;
}
.page-news__desc {
  font-size: 1rem;
  color: var(--np-muted);
  margin: 0 0 1.75rem;
  max-width: 640px;
  line-height: 1.6;
}

/* ---- 隐藏 radio ---- */
.topic-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
  white-space: nowrap;
}

/* ---- 色块索引 ---- */
.page-news__blocks {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.topic-block {
  position: relative;
  display: block;
  border-radius: var(--np-radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--np-transition), box-shadow var(--np-transition);
  min-height: 140px;
  background: var(--np-primary);
  box-shadow: 0 4px 16px rgba(27, 94, 32, 0.18);
}

.topic-block:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 28px rgba(27, 94, 32, 0.28);
}

.topic-block:focus-visible {
  outline: 3px solid var(--np-accent);
  outline-offset: 2px;
}

.topic-block__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.35;
  mix-blend-mode: overlay;
  pointer-events: none;
}

.topic-block--update .topic-block__bg {
  opacity: 0.30;
}

.topic-block--guide .topic-block__bg {
  opacity: 0.28;
}

.topic-block--trend .topic-block__bg {
  opacity: 0.32;
}

.topic-block__inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  min-height: 140px;
  padding: 1.25rem 1rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(13, 51, 16, 0.55) 0%, rgba(27, 94, 32, 0.70) 100%);
}

.topic-block__title {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--np-accent);
  letter-spacing: -0.01em;
  margin-bottom: 0.25rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.topic-block__desc {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.90);
  letter-spacing: 0.02em;
  text-shadow: 0 1px 4px rgba(0,0,0,0.20);
}

/* 选中态：当前激活的色块加金色边框 */
#topic-update:checked ~ .page-news__blocks .topic-block--update,
#topic-guide:checked ~ .page-news__blocks .topic-block--guide,
#topic-trend:checked ~ .page-news__blocks .topic-block--trend {
  box-shadow: 0 0 0 3px var(--np-accent), 0 8px 28px rgba(27, 94, 32, 0.30);
  transform: scale(1.02);
}

/* ---- 内容面板 ---- */
.page-news__panels {
  margin-bottom: 2rem;
}

.content-panel {
  display: none;
  animation: panelFadeIn 0.4s ease both;
}

@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

#topic-update:checked ~ .page-news__panels #panel-update,
#topic-guide:checked ~ .page-news__panels #panel-guide,
#topic-trend:checked ~ .page-news__panels #panel-trend {
  display: block;
}

.content-panel__heading {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--np-dark);
  margin: 0 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--np-accent);
  display: inline-block;
  letter-spacing: -0.01em;
}

/* ---- 文章列表 ---- */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.article-item {
  position: relative;
  padding: 0.9rem 1rem 0.9rem 2.6rem;
  background: var(--color-surface, #FFFFFF);
  border-radius: var(--np-radius-sm);
  box-shadow: 0 2px 8px rgba(27, 94, 32, 0.06);
  transition: box-shadow var(--np-transition), transform var(--np-transition);
  cursor: default;
  border-left: 4px solid transparent;
}

.article-item:hover {
  box-shadow: 0 6px 20px rgba(27, 94, 32, 0.12);
  transform: translateX(4px);
  border-left-color: var(--np-accent);
}

/* 金色小圆点（CSS 实现） */
.article-item::before {
  content: '';
  position: absolute;
  left: 0.9rem;
  top: 1.1rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--np-accent);
  box-shadow: 0 0 6px rgba(255, 215, 0, 0.50);
  transition: transform var(--np-transition), box-shadow var(--np-transition);
}

.article-item:hover::before {
  transform: scale(1.25);
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.70);
}

.article-item__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--np-dark);
  margin: 0 0 0.1rem;
  line-height: 1.4;
}

/* 悬停展开摘要 */
.article-item__hover {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, margin 0.35s ease;
  margin-top: 0;
}

.article-item:hover .article-item__hover {
  max-height: 120px;
  margin-top: 0.35rem;
}

.article-item__summary {
  font-size: 0.9rem;
  color: var(--np-muted);
  line-height: 1.55;
  margin: 0;
}

/* ---- 底部氛围图 ---- */
.page-news__atmosphere {
  margin-top: 1rem;
  border-radius: var(--np-radius);
  overflow: hidden;
  opacity: 0.40;
  pointer-events: none;
}

.atmosphere-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== 响应式：桌面端 ≥ 768px ===== */
@media (min-width: 768px) {
  .page-news {
    padding: 2rem 2.5rem 3rem;
  }

  .page-news__title {
    font-size: 3.2rem;
  }

  .page-news__desc {
    font-size: 1.1rem;
    margin-bottom: 2.25rem;
  }

  .page-news__blocks {
    flex-direction: row;
    gap: 1.5rem;
  }

  .topic-block {
    flex: 1;
    min-height: 180px;
  }

  .topic-block__inner {
    min-height: 180px;
    padding: 1.5rem 1.25rem;
  }

  .topic-block__title {
    font-size: 1.8rem;
  }

  .topic-block__desc {
    font-size: 0.95rem;
  }

  .content-panel__heading {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
  }

  .article-list {
    gap: 1rem;
  }

  .article-item {
    padding: 1.1rem 1.5rem 1.1rem 3rem;
  }

  .article-item::before {
    left: 1.1rem;
    top: 1.35rem;
    width: 12px;
    height: 12px;
  }

  .article-item__title {
    font-size: 1.15rem;
  }

  .article-item__summary {
    font-size: 0.95rem;
  }

  .page-news__atmosphere {
    margin-top: 2rem;
    border-radius: 24px;
    opacity: 0.30;
  }
}

/* ===== 大桌面端 ≥ 1024px ===== */
@media (min-width: 1024px) {
  .page-news {
    padding: 2.5rem 3rem 4rem;
  }

  .topic-block {
    min-height: 210px;
  }

  .topic-block__inner {
    min-height: 210px;
  }

  .topic-block__title {
    font-size: 2rem;
  }

  .article-item {
    padding: 1.25rem 1.75rem 1.25rem 3.2rem;
  }

  .article-item::before {
    left: 1.25rem;
    top: 1.5rem;
  }
}