/* ============================================================
   docs.css - Wiki 子系统样式
   加载页面：/docs/index.html、/docs/article.html
   ============================================================ */

/* ---------- Wiki 布局 ---------- */
.docs-layout {
  display: flex;
  max-width: 1280px;
  margin: 0 auto;
  min-height: calc(100vh - 56px);
}

.docs-sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  position: sticky;
  top: 56px;
  align-self: flex-start;
  max-height: calc(100vh - 56px);
  overflow-y: auto;
}
.docs-sidebar h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0 8px 12px;
}
.docs-sidebar .sidebar-link {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--text-muted);
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.docs-sidebar .sidebar-link:hover {
  color: var(--link);
  background: var(--active-bg);
}
.docs-sidebar .sidebar-link.active {
  color: var(--link);
  font-weight: 700;
  background: var(--active-bg);
  border-left-color: var(--active-border);
}

.docs-content {
  flex: 1;
  padding: 32px 40px 64px;
  min-width: 0;
}
.docs-content h1 { font-size: 26px; margin-bottom: 16px; }
/* 标题行内的 h1 清除 margin，避免 flex 居中时标题文字被上推 */
.docs-head-row h1 { margin: 0; }
.docs-content h2 { font-size: 20px; margin: 24px 0 10px; }
.docs-content h3 { font-size: 17px; margin: 20px 0 8px; }
.docs-content p { margin-bottom: 14px; color: var(--text); }
.docs-content ul, .docs-content ol { margin: 0 0 14px 24px; }
.docs-content li { margin-bottom: 6px; }
.docs-content code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.docs-content pre {
  background: var(--code-bg);
  padding: 14px 16px;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}
.docs-content pre code { background: none; padding: 0; }
.docs-content blockquote {
  border-left: 3px solid var(--active-border);
  padding: 4px 14px;
  color: var(--text-muted);
  margin-bottom: 14px;
  background: var(--active-bg);
  border-radius: 0 6px 6px 0;
}

/* ---------- 文章分页导航 ---------- */
.docs-pagination {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.docs-pagination .page-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 12px 18px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 6px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.docs-pagination .page-btn:hover:not(.disabled) {
  color: var(--link);
  border-color: var(--link);
}
.docs-pagination .page-btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}
.docs-pagination .page-btn .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.docs-pagination .page-btn .title {
  font-size: 14px;
  font-weight: 600;
}
.docs-pagination .page-btn.prev { text-align: left; }
.docs-pagination .page-btn.next { text-align: right; }
.docs-pagination .page-divider {
  width: 1px;
  background: var(--border);
  margin: 0 12px;
}

/* ---------- Wiki 目录页 ---------- */
.docs-index-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.docs-index-list .doc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.docs-index-list .doc-item:hover {
  transform: translateX(4px);
  border-color: var(--link);
  box-shadow: var(--shadow-md);
}
.docs-index-list .doc-item .doc-title {
  font-weight: 600;
  color: var(--text);
}
.docs-index-list .doc-item .doc-arrow {
  color: var(--text-muted);
  transition: transform 0.2s ease, color 0.2s ease;
}
.docs-index-list .doc-item:hover .doc-arrow {
  color: var(--link);
  transform: translateX(4px);
}

/* 侧边栏嵌套分组（可折叠，整行可点） */
.docs-sidebar .sidebar-group {
  margin-bottom: 6px;
}
.docs-sidebar .sidebar-group-header {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, color 0.15s ease;
}
.docs-sidebar .sidebar-group-header:hover,
.docs-sidebar .sidebar-group-header:focus-visible {
  background: var(--active-bg);
  color: var(--link);
  outline: none;
}
.docs-sidebar .sidebar-group-title {
  flex: 1;
  font-weight: 700;
  font-size: 14px;
  color: inherit;
}
.docs-sidebar .sidebar-group-active .sidebar-group-title {
  color: var(--link);
}
.docs-sidebar .sidebar-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color 0.15s ease;
}
.docs-sidebar .sidebar-toggle svg {
  transform: rotate(90deg);
  transition: transform 0.25s ease;
}
.docs-sidebar .sidebar-group.collapsed .sidebar-toggle svg {
  transform: rotate(0deg);
}
.docs-sidebar .sidebar-group-header:hover .sidebar-toggle {
  color: var(--link);
}
.docs-sidebar .sidebar-sub {
  margin-left: 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 2px;
  overflow: hidden;
  max-height: 2000px;
  opacity: 1;
  transition: max-height 0.25s ease, opacity 0.2s ease, margin-top 0.25s ease;
}
.docs-sidebar .sidebar-group.collapsed .sidebar-sub {
  max-height: 0;
  margin-top: 0;
  opacity: 0;
}
/* 层级缩进字号微调（depth-0 一级、depth-1 二级、depth-2 三级）；
   嵌套 .sidebar-sub 的 margin-left 自动累加形成层级缩进 */
.docs-sidebar .sidebar-depth-1 { font-size: 13px; }
.docs-sidebar .sidebar-depth-2 { font-size: 13px; }
.docs-sidebar .sidebar-depth-1 > .sidebar-group-header { padding: 6px 12px; }

/* 文章页面包屑 */
.doc-breadcrumb {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.doc-breadcrumb a { color: var(--text-muted); }
.doc-breadcrumb a:hover { color: var(--link); }
.doc-breadcrumb .breadcrumb-sep {
  margin: 0 6px;
  color: var(--text-muted);
}
.doc-breadcrumb .breadcrumb-current {
  color: var(--text);
  font-weight: 600;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .docs-layout { flex-direction: column; }
  .docs-sidebar {
    width: 100%;
    position: relative;
    top: 0;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .docs-content { padding: 24px 16px 48px; }
}

/* ---------- 文章正文表格（Markdown table 渲染） ---------- */
.doc-body table {
  border-collapse: collapse;
  margin: 16px 0;
  width: 100%;
  font-size: 14px;
}
.doc-body th, .doc-body td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: break-word;
  word-break: break-word;
}
.doc-body thead th {
  background: var(--code-bg);
  font-weight: 700;
  color: var(--text);
}
.doc-body tbody tr:nth-child(even) {
  background: var(--active-bg);
}
.doc-body table a { color: var(--link); }
.doc-body table a:hover { color: var(--link-hover); }