/* 外层 details 容器基底 */
.markdown-body details {
  background: rgba(128, 128, 128, 0.03) !important;
  border: 1px solid rgba(128, 128, 128, 0.2) !important;
  border-radius: 8px !important;
  margin: 12px 0 !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) !important;
  transition: all 0.3s ease !important;
  overflow: hidden !important;
}

/* 展开状态的容器阴影加深 */
.markdown-body details[open] {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08) !important;
  border-color: rgba(128, 128, 128, 0.3) !important;
  padding-bottom: 12px !important;
}

/* summary 头部 - 转换为方便点击的长条块 */
.markdown-body details > summary {
  display: flex !important;
  align-items: center !important;
  padding: 12px 16px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  background: rgba(128, 128, 128, 0.05) !important;
  margin: 0 !important;
  transition: background 0.2s ease !important;
  list-style: none !important; 
  user-select: none !important;
}

/* 隐藏原生箭头 */
.markdown-body details > summary::-webkit-details-marker {
  display: none !important;
}

/* 自定义折叠指示器 */
.markdown-body details > summary::before {
  content: "▶" !important;
  font-size: 0.8em !important;
  margin-right: 10px !important;
  transition: transform 0.3s ease !important;
  opacity: 0.6 !important;
}

/* 展开时的指示器旋转动画 */
.markdown-body details[open] > summary::before {
  transform: rotate(90deg) !important;
  opacity: 0.9 !important;
}

/* 悬停交互 */
.markdown-body details > summary:hover {
  background: rgba(128, 128, 128, 0.12) !important;
}

/* 点击时的按压反馈 */
.markdown-body details > summary:active {
  background: rgba(128, 128, 128, 0.18) !important;
}

/* 内容区边距控制 */
.markdown-body details[open] > *:not(summary) {
  margin-left: 16px !important;
  margin-right: 16px !important;
}

.markdown-body details[open] > summary + * {
  margin-top: 14px !important;
}

/* -------------------------------------
   嵌套 details 的层次感增强设计
   ------------------------------------- */
.markdown-body details details {
  margin: 10px 16px !important;
  background: rgba(128, 128, 128, 0.02) !important;
  border: none !important;
  border-left: 3px solid rgba(128, 128, 128, 0.3) !important;
  border-radius: 0 6px 6px 0 !important;
  box-shadow: none !important;
}

.markdown-body details details > summary {
  background: transparent !important;
  font-size: 0.95em !important;
}

.markdown-body details details > summary:hover {
  background: rgba(128, 128, 128, 0.08) !important;
}

/* 嵌套结构展开时的侧边高亮引导线 */
.markdown-body details details[open] {
  border-left-color: #8b5cf6 !important; /* 紫色视觉引导线 */
}