/* ============================================
   文章目录（TOC）增强：让侧边目录更清晰醒目
   ============================================ */

/* 目录容器：毛玻璃背景，从正文中"浮"出来 */
#toc {
  visibility: visible !important;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  padding: 0.7rem 0.8rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

/* 目录标题栏 */
#toc .toc-header {
  margin: 0 0 0.5rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #214792;
  font-size: 1rem;
  font-weight: 700;
  color: #214792;
}
#toc .toc-header .iconfont {
  margin-right: 0.25rem;
}

/* 目录主体：超高时内部滚动，避免占满整屏 */
#toc .toc-body {
  max-height: 72vh;
  overflow-y: auto;
}

/* 目录列表：去掉默认圆点，规整缩进 */
#toc .tocbot-list,
#toc .tocbot-list ul {
  list-style: none;
  margin: 0;
  padding-left: 0;
}
#toc .tocbot-list ul {
  padding-left: 1rem;
}

/* 目录链接 */
#toc .tocbot-link {
  display: block;
  padding: 0.25rem 0.5rem;
  border-left: 3px solid transparent;
  border-radius: 4px;
  color: #4a5568;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.6;
}
#toc .tocbot-link:hover {
  color: #214792;
  background: #f0f4ff;
}

/* 当前阅读位置：高亮显示 */
#toc .tocbot-active-link {
  color: #214792;
  font-weight: 700;
  background: #e8efff;
  border-left-color: #214792;
}

/* ---------- 暗色模式适配 ---------- */
[data-user-color-scheme="dark"] #toc {
  background: rgba(35, 45, 63, 0.55);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}
[data-user-color-scheme="dark"] #toc .toc-header {
  border-bottom-color: #5b7cbf;
  color: #9db8e8;
}
[data-user-color-scheme="dark"] #toc .tocbot-link {
  color: #a7b2c4;
}
[data-user-color-scheme="dark"] #toc .tocbot-link:hover {
  color: #9db8e8;
  background: #2e3a50;
}
[data-user-color-scheme="dark"] #toc .tocbot-active-link {
  color: #9db8e8;
  background: #33415c;
  border-left-color: #5b7cbf;
}