@layer business {
/* ============================================================================
   Workspace Panel - 工作空间面板（现为 fp-pane-workspace 内容）
   ============================================================================ */

/* fp-pane 已提供 flex column 容器，workspace 内容样式保持不变 */

/* resize-handle 跟随 workspace 隐藏（已废弃，保留向后兼容） */
#resize-ws-chat.hidden {
  display: none;
}

/* Workspace 关闭按钮：桌面端隐藏，平板/移动端显示 */
.workspace-close-btn {
  display: none;
}

/* ── 手机适配 ≤768px ── */
@media (max-width: 768px) {
  /* 手机：navbar 改为侧滑菜单（默认隐藏，汉堡按钮触发） */
  #navbar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--navbar-width-mobile);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: none;
  }

  #navbar.mobile-open {
    transform: translateX(0);
    box-shadow: 4px 0 16px rgba(0, 0, 0, 0.15);
  }

  #resize-ws-chat {
    display: none !important;
  }

  #chat-panel {
    flex: 1;
    width: 100%;
    min-width: 0;
  }

  .workspace-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    flex-shrink: 0;
    font-size: 1.3rem;
  }

  .workspace-close-btn:active {
    background: rgba(0, 0, 0, 0.08);
  }
}

/* Workspace Tab Bar */
.workspace-tabs {
  height: 36px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 2px;
  border-bottom: 1px solid var(--ruled-line-color);
  background: var(--bg-panel);
  flex-shrink: 0;
}

.workspace-tab {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 12px;
  height: 28px;
  border-radius: 4px 4px 0 0;
  cursor: pointer;
  font-size: 0.78rem;
  font-family: var(--font-main);
  color: var(--text-muted);
  background: transparent;
  border: none;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.workspace-tab:hover {
  background: rgba(139, 119, 90, 0.1);
  color: var(--text-main);
}

.workspace-tab.active {
  background: var(--bg-void);
  color: var(--color-primary);
  font-weight: 600;
  border-bottom: 2px solid var(--color-primary);
}

.workspace-tab i {
  font-size: 0.9rem;
}

/* Workspace Content */
.workspace-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.workspace-content:hover {
  scrollbar-color: var(--border-color-default) var(--bg-void);
}

/* File Tab Bar — 我的文件 / 共享文件 二级切换 */
.file-tab-bar {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 6px 12px 0;
  flex-shrink: 0;
  background: var(--bg-void);
}

.file-tab {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 14px;
  font-size: 0.75rem;
  font-family: var(--font-main);
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.file-tab:hover {
  color: var(--text-main);
}

.file-tab.active {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: var(--color-primary);
}

.file-tab i {
  font-size: 0.85rem;
}

/* ============================================================================
   File Explorer - Linux 风格文件浏览器
   ============================================================================ */

.file-explorer {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  scrollbar-color: transparent transparent;
  transition: scrollbar-color 0.3s;
}

.file-explorer:hover {
  scrollbar-color: var(--border-color-default) var(--bg-void);
}

/* 工具栏：面包屑 + 视图切换 */
.file-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px 0 0;
  border-bottom: 1px solid var(--ruled-line-color);
  background: var(--bg-card);
  flex-shrink: 0;
  min-height: 34px;
}

/* 视图切换下拉 */
.file-view-wrap {
  position: relative;
  flex-shrink: 0;
}

.file-view-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 26px;
  padding: 0 7px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-main);
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.file-view-dropdown-btn:hover {
  background: rgba(139, 119, 90, 0.1);
  color: var(--text-main);
}

.file-view-dropdown-btn i {
  font-size: 0.82rem;
}

.file-view-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--ruled-line-color);
  border-radius: 6px;
  box-shadow: var(--paper-shadow);
  z-index: 100;
  min-width: 100px;
  padding: 4px;
  flex-direction: column;
  gap: 1px;
}

.file-view-menu.open {
  display: flex;
}

.file-view-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 9px;
  border: none;
  background: transparent;
  color: var(--text-main);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.78rem;
  font-family: var(--font-main);
  text-align: left;
  transition: background 0.12s;
}

.file-view-item:hover {
  background: rgba(139, 119, 90, 0.08);
}

.file-view-item.active {
  color: var(--color-primary);
  font-weight: 600;
  background: rgba(43, 94, 167, 0.07);
}

.file-view-item i {
  font-size: 0.85rem;
  opacity: 0.7;
  width: 14px;
  text-align: center;
}

/* ── 排序控件 ── */
.file-sort-wrap {
  position: relative;
  flex-shrink: 0;
  margin-right: 4px;
}

.file-sort-btn {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 26px;
  padding: 0 7px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-main);
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.file-sort-btn:hover {
  background: rgba(139, 119, 90, 0.1);
  color: var(--text-main);
}

.file-sort-btn i {
  font-size: 0.82rem;
}

.file-sort-dir {
  font-size: 0.7rem !important;
  opacity: 0.7;
}

.file-sort-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  left: auto;
  background: var(--bg-card);
  border: 1px solid var(--ruled-line-color);
  border-radius: 6px;
  box-shadow: var(--paper-shadow);
  z-index: 100;
  min-width: 120px;
  max-width: calc(100vw - 32px);
  padding: 4px;
  flex-direction: column;
  gap: 1px;
}

.file-sort-menu.open {
  display: flex;
}

.file-sort-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 9px;
  border: none;
  background: transparent;
  color: var(--text-main);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.78rem;
  font-family: var(--font-main);
  text-align: left;
  transition: background 0.12s;
}

.file-sort-item:hover {
  background: rgba(139, 119, 90, 0.08);
}

.file-sort-item.active {
  color: var(--color-primary);
  font-weight: 600;
  background: rgba(43, 94, 167, 0.07);
}

.file-sort-item i {
  font-size: 0.85rem;
  opacity: 0.7;
  width: 14px;
  text-align: center;
}



/* 返回上一层按钮 */
.file-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
  margin-left: 8px;
  font-size: 1.1rem;
  transition: background 0.15s, color 0.15s;
}

.file-back-btn:hover {
  background: rgba(139, 119, 90, 0.1);
  color: var(--color-primary);
}

.synced-change-folder-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
  margin-left: 4px;
  font-size: 1.1rem;
  transition: background 0.15s, color 0.15s;
}

.synced-change-folder-btn:hover {
  background: rgba(139, 119, 90, 0.1);
  color: var(--color-primary);
}

/* 面包屑路径 */
.file-breadcrumb {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  flex-shrink: 0;
  flex-wrap: wrap;
  min-height: 34px;
  flex: 1;
  min-width: 0;
}

.file-breadcrumb-segment {
  cursor: pointer;
  color: var(--color-primary);
  padding: 1px 3px;
  border-radius: 2px;
  transition: background 0.15s;
}

.file-breadcrumb-segment:hover {
  background: rgba(43, 94, 167, 0.1);
  text-decoration: underline;
}

.file-breadcrumb-separator {
  color: var(--text-muted);
  user-select: none;
}

/* 文件表格 */
.file-table {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  border-collapse: collapse;
}

.file-table thead {
  position: sticky;
  top: 0;
  z-index: 1;
}

.file-table th {
  text-align: left;
  padding: 6px 12px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--ruled-line-color);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-void);
}

.file-row {
  cursor: pointer;
  transition: background 0.12s;
}

.file-row:hover {
  background: rgba(139, 119, 90, 0.06);
}

.file-row td {
  padding: 3px 12px;
  white-space: nowrap;
  border-bottom: 1px solid rgba(214, 207, 194, 0.3);
  line-height: 1.7;
}

/* 权限列 */
.file-permissions {
  color: var(--text-muted);
  font-size: 0.72rem;
}

/* 文件名 */
.file-name {
  color: var(--text-main);
}

.file-name.is-dir {
  color: var(--color-primary);
  font-weight: 600;
}

/* 大小 */
.file-size {
  color: var(--text-muted);
  font-size: 0.74rem;
  text-align: right;
}

/* 修改时间 */
.file-modified {
  color: var(--text-muted);
  font-size: 0.74rem;
}

/* 返回上级行 */
.file-row.file-parent td {
  color: var(--text-muted);
  font-style: italic;
}

.file-row.file-parent:hover {
  background: rgba(43, 94, 167, 0.06);
}

/* 空目录提示 */
.file-empty {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-style: italic;
}

/* 加载状态 */
.file-loading {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

/* ============================================================================
   Icon 视图
   ============================================================================ */

.file-icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(88px, 1fr));
  gap: 4px;
  padding: 12px;
}

.file-icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s;
  min-width: 0;
}

.file-icon-item:hover {
  background: rgba(139, 119, 90, 0.08);
}

.file-icon-item.file-parent:hover {
  background: rgba(43, 94, 167, 0.06);
}

.file-icon-img {
  font-size: 2rem;
  color: var(--text-muted);
  line-height: 1;
}

/* list 视图行内小图标 */
.file-list-icon {
  font-size: 0.9rem;
  margin-right: 5px;
  vertical-align: middle;
  color: var(--text-muted);
}

/* ── 文件类型颜色 ── */
.file-color-dir   { color: var(--color-primary); }  /* 文件夹 — 蓝色（同 primary） */
.file-color-js    { color: #e8a817; }  /* JS/TS — 黄色 */
.file-color-py    { color: #3572a5; }  /* Python — 蓝色 */
.file-color-go    { color: #00acd7; }  /* Go — 青蓝 */
.file-color-rs    { color: #c0622c; }  /* Rust — 橙棕 */
.file-color-java  { color: #b07219; }  /* Java — 棕黄 */
.file-color-swift { color: var(--color-danger); }  /* Swift — 橙红 */
.file-color-html  { color: #e44d26; }  /* HTML/Svelte — 橙红 */
.file-color-css   { color: #264de4; }  /* CSS/SCSS — 蓝色 */
.file-color-vue   { color: #41b883; }  /* Vue — 绿色 */
.file-color-code  { color: #6a737d; }  /* 其他代码 — 灰色 */
.file-color-json  { color: var(--file-color-xml); }  /* JSON — 橙黄 */
.file-color-yaml  { color: #cb171e; }  /* YAML/TOML — 红色 */
.file-color-xml   { color: #e37933; }  /* XML — 橙色 */
.file-color-lock  { color: var(--text-muted); }  /* .env/.lock — 棕灰 */
.file-color-md    { color: #2b7a78; }  /* Markdown — 深青 */
.file-color-txt   { color: var(--text-muted); }  /* 纯文本 — 灰棕 */
.file-color-pdf   { color: var(--color-secondary); }  /* PDF — 红色 */
.file-color-word  { color: var(--color-primary); }  /* Word — 蓝色 */
.file-color-excel { color: var(--file-color-excel); }  /* Excel — 绿色 */
.file-color-ppt   { color: #d35400; }  /* PPT — 橙色 */
.file-color-image { color: #9b59b6; }  /* 图片 — 紫色 */
.file-color-media { color: #e91e8c; }  /* 音视频 — 粉色 */
.file-color-zip   { color: #795548; }  /* 压缩包 — 棕色 */
.file-color-shell { color: var(--file-color-excel); }  /* Shell — 绿色 */
.file-color-db    { color: #0097a7; }  /* 数据库 — 青色 */
.file-color-log   { color: #9e9e9e; }  /* 日志 — 浅灰 */

.file-icon-label {
  font-family: var(--font-main);
  font-size: 0.72rem;
  color: var(--text-main);
  text-align: center;
  word-break: break-all;
  line-height: 1.3;
  max-height: 2.6em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  width: 100%;
}

.file-icon-item.is-dir .file-icon-label {
  color: var(--color-primary);
  font-weight: 500;
}

/* ============================================================================
   右键上下文菜单
   ============================================================================ */

.file-ctx-menu {
  display: none;
  position: fixed;
  z-index: 9999;
  background: var(--bg-card);
  border: 1px solid var(--ruled-line-color);
  border-radius: 6px;
  box-shadow: var(--paper-shadow);
  padding: 4px;
  min-width: 130px;
  flex-direction: column;
}

.file-ctx-menu.open {
  display: flex;
}

.file-ctx-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: none;
  background: transparent;
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.8rem;
  font-family: var(--font-main);
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  transition: background 0.12s;
  white-space: nowrap;
}

.file-ctx-item:hover {
  background: rgba(139, 119, 90, 0.08);
}

.file-ctx-item i {
  font-size: 0.9rem;
  opacity: 0.75;
  flex-shrink: 0;
}

.file-ctx-item--danger {
  color: var(--color-secondary);
}

.file-ctx-item--danger:hover {
  background: rgba(192, 57, 43, 0.08);
}

/* ============================================================================
   删除确认弹窗
   ============================================================================ */

.file-delete-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
}

.file-delete-dialog {
  background: var(--bg-card);
  border: 1px solid var(--ruled-line-color);
  border-radius: 10px;
  box-shadow: var(--paper-shadow);
  padding: 20px 24px;
  min-width: 280px;
  max-width: 360px;
}

.file-delete-msg {
  margin: 0 0 16px;
  font-size: 0.9rem;
  color: var(--text-main);
  line-height: 1.5;
  word-break: break-all;
}

.file-delete-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.file-delete-btn {
  padding: 6px 16px;
  border: none;
  border-radius: 6px;
  font-size: 0.8rem;
  font-family: var(--font-main);
  cursor: pointer;
  transition: background 0.15s;
}

.file-delete-btn--cancel {
  background: var(--bg-body);
  color: var(--text-main);
}

.file-delete-btn--cancel:hover {
  background: var(--ruled-line-color);
}

.file-delete-btn--confirm {
  background: var(--color-secondary);
  color: #fff;
}

.file-delete-btn--confirm:hover {
  background: var(--color-secondary);
}

.file-delete-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================================================
   "无法打开" 提示条
   ============================================================================ */

.file-cannot-open-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin: 8px;
  background: rgba(200, 100, 0, 0.08);
  border: 1px solid rgba(200, 100, 0, 0.2);
  border-radius: 6px;
  font-size: 0.82rem;
  font-family: var(--font-main);
  color: var(--text-main);
  flex-shrink: 0;
  animation: fileHintFadeIn 0.15s ease;
}

.file-cannot-open-hint i {
  color: var(--color-warning);
  font-size: 1rem;
  flex-shrink: 0;
}

@keyframes fileHintFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: none; }
}

/* ============================================================================
   文件 Tab（可关闭，追加在 workspace-tabs 中）
   ============================================================================ */

/* 文件 tab 与普通 tab 同款基础样式，追加关闭按钮布局 */
.workspace-file-tab {
  max-width: 160px;
  position: relative;
}

.workspace-file-tab-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 110px;
  display: inline-block;
  vertical-align: middle;
}

.workspace-file-tab-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: 2px;
  cursor: pointer;
  font-size: 0.75rem;
  padding: 0;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s, color 0.15s;
}

.workspace-file-tab:hover .workspace-file-tab-close,
.workspace-file-tab.active .workspace-file-tab-close {
  opacity: 1;
}

.workspace-file-tab-close:hover {
  background: rgba(139, 119, 90, 0.15);
  color: var(--text-main);
}

/* ============================================================================
   文件查看器内容区
   ============================================================================ */

#file-viewer {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-void);
}

/* 通用包裹容器：居中或滚动 */
.file-viewer-wrap {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow: auto;
  padding: 16px;
  scrollbar-color: transparent transparent;
  transition: scrollbar-color 0.3s;
}

.file-viewer-wrap:hover {
  scrollbar-color: var(--border-color-default) var(--bg-void);
}

/* 图片：居中展示，最大不超出容器 */
.file-viewer-image {
  align-items: center;
}

.file-viewer-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.12);
}

/* 视频 */
.file-viewer-media {
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
}

/* 音频：垂直居中 */
.file-viewer-audio {
  width: 100%;
  max-width: 480px;
  margin: auto;
}

/* PDF：全高 iframe */
.file-viewer-iframe {
  flex: 1;
  width: 100%;
  height: 100%;
  border: none;
}

/* 文本 / 代码 */
.file-viewer-text {
  align-items: stretch;
  justify-content: flex-start;
}

.file-viewer-pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-main);
  white-space: pre-wrap;
  word-break: break-all;
  width: 100%;
}

/* ── 手机适配 ≤768px ── */
@media (max-width: 768px) {
  /* 文件表格允许横向滚动 */
  .file-explorer {
    overflow-x: auto;
  }

  .file-table th,
  .file-table td {
    padding: 6px 8px;
  }

  /* 隐藏权限列和修改时间列（空间不够） */
  .file-permissions,
  .file-modified {
    display: none;
  }

  /* 图标网格缩小 */
  .file-icon-grid {
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: 2px;
    padding: 8px;
  }

  /* 触摸目标放大 */
  .file-sort-item {
    padding: 8px 12px;
  }

  .file-view-dropdown-btn {
    height: 36px;
    padding: 0 10px;
  }

  .file-sort-btn {
    height: 36px;
    padding: 0 10px;
  }

  /* workspace 关闭按钮放大 */
  .btn-workspace-close {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
  }

  /* workspace tab 间距优化 */
  .workspace-tabs {
    padding: 0 8px;
    gap: 0;
    overflow-x: auto;
  }

  .workspace-tab {
    padding: 0 10px;
    flex-shrink: 0;
  }

  /* FAB 浮动按钮（仅移动端） */
  .file-fab {
    display: flex !important;
  }

  /* 移动端多选底部操作栏 */
  .file-batch-bar.visible {
    display: flex !important;
  }

  /* 移动端选择按钮 */
  .file-select-btn {
    display: inline-flex !important;
  }
}

/* ── 文件选中态 ──────────────────────────────────────────── */

.file-row.selected,
.file-icon-item.selected {
  background: var(--color-primary-bg, rgba(59,130,246,0.08));
}

.file-row.selected td:first-child::before,
.file-icon-item.selected::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-primary, var(--color-primary));
}

.file-row.selected { position: relative; }

/* ── 选中计数 ──────────────────────────────────────────── */

.file-selection-count {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  background: var(--color-primary, var(--color-primary));
  color: #fff;
}

/* ── Drop Zone 覆盖层 ──────────────────────────────────── */

.file-drop-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59,130,246,0.08);
  border: 2px dashed var(--color-primary, var(--color-primary));
  border-radius: 8px;
  z-index: 100;
  pointer-events: none;
}

.file-drop-overlay span {
  font-size: 1rem;
  color: var(--color-primary, var(--color-primary));
  font-weight: 500;
}

/* ── 拖拽目标高亮 ──────────────────────────────────────── */

.file-row.drag-over,
.file-icon-item.drag-over {
  outline: 2px dashed var(--color-primary, var(--color-primary));
  outline-offset: -2px;
  background: rgba(59,130,246,0.06);
}

/* ── 内联重命名输入框 ────────────────────────────────────── */

.file-rename-input {
  border: 1px solid var(--color-primary, var(--color-primary));
  border-radius: 4px;
  padding: 2px 6px;
  font-size: inherit;
  font-family: inherit;
  outline: none;
  background: var(--color-bg, var(--bg-card));
  color: inherit;
  width: auto;
  min-width: 80px;
  max-width: 240px;
}

/* ── Action Sheet（移动端） ───────────────────────────────── */

.file-action-sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 9999;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}

.file-action-sheet-overlay.show {
  opacity: 1;
}

.file-action-sheet {
  width: 100%;
  max-width: 500px;
  background: var(--color-bg, var(--bg-card));
  border-radius: 16px 16px 0 0;
  padding: 12px 0 env(safe-area-inset-bottom, 16px);
  transform: translateY(100%);
  transition: transform 0.25s ease-out;
}

.file-action-sheet-overlay.show .file-action-sheet {
  transform: translateY(0);
}

.file-action-sheet-title {
  padding: 8px 20px 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--color-border, var(--border-color-default));
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-action-sheet-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 20px;
  border: none;
  background: none;
  font-size: 0.95rem;
  color: var(--color-text, var(--text-main));
  cursor: pointer;
  text-align: left;
}

.file-action-sheet-item:active {
  background: rgba(0,0,0,0.05);
}

.file-action-sheet-item--danger {
  color: var(--file-color-pdf);
}

.file-action-sheet-cancel {
  display: block;
  width: calc(100% - 32px);
  margin: 8px 16px 0;
  padding: 14px;
  border: none;
  border-radius: 12px;
  background: var(--color-bg-secondary, var(--bg-card));
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text, var(--text-main));
  cursor: pointer;
  text-align: center;
}

/* ── FAB 浮动按钮 ──────────────────────────────────────── */

.file-fab {
  display: none;
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 1000;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.file-fab-main {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary, var(--color-primary));
  color: #fff;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(59,130,246,0.3);
  cursor: pointer;
  transition: transform 0.2s;
}

.file-fab-main.open {
  transform: rotate(45deg);
}

.file-fab-actions {
  display: none;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}

.file-fab.open .file-fab-actions {
  display: flex;
}

.file-fab-action {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 20px;
  border: none;
  background: var(--bg-card);
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  font-size: 0.82rem;
  color: var(--text-main);
  cursor: pointer;
  white-space: nowrap;
}

/* ── 移动端多选底部操作栏 ──────────────────────────────── */

.file-batch-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-bg, var(--bg-card));
  border-top: 1px solid var(--color-border, var(--border-color-default));
  padding: 10px 16px env(safe-area-inset-bottom, 10px);
  justify-content: space-around;
  align-items: center;
  z-index: 1000;
}

.file-batch-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  border: none;
  background: none;
  font-size: 0.72rem;
  color: var(--color-text, var(--text-main));
  cursor: pointer;
  padding: 4px 12px;
}

.file-batch-btn i {
  font-size: 1.2rem;
}

.file-batch-btn--danger { color: var(--file-color-pdf); }

/* ── 移动端选择按钮 ──────────────────────────────────── */

.file-select-btn {
  display: none;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid var(--color-border, var(--border-color-default));
  border-radius: 6px;
  background: none;
  font-size: 0.78rem;
  color: var(--text-main);
  cursor: pointer;
}

/* ── 多选 checkbox（移动端） ──────────────────────────── */

.file-row .file-checkbox,
.file-icon-item .file-checkbox {
  display: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-color-default);
  margin-right: 8px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
}

.file-selecting .file-checkbox {
  display: inline-flex;
}

.file-checkbox.checked {
  background: var(--color-primary, var(--color-primary));
  border-color: var(--color-primary, var(--color-primary));
}

.file-checkbox.checked::after {
  content: '✓';
  color: #fff;
  font-size: 0.7rem;
}

/* ── 搜索 ────────────────────────────────────────────── */

.file-search-wrap {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 260px;
  margin-left: auto;
  position: relative;
}

.file-search-input {
  width: 100%;
  height: 28px;
  padding: 0 28px 0 10px;
  border: 1px solid var(--color-border, #d4c9b5);
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: var(--font-main);
  background: var(--bg-panel, #faf8f5);
  color: var(--text-main);
  outline: none;
  transition: border-color 0.2s;
}

.file-search-input:focus {
  border-color: var(--color-primary);
}

.file-search-input::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.file-search-clear {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1;
}

.file-search-clear:hover {
  color: var(--text-main);
}

/* ── 搜索结果 ────────────────────────────────────────── */

.file-search-results {
  padding: 8px 12px;
}

.file-search-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  color: var(--text-muted);
  padding: 4px 0 8px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  margin-bottom: 4px;
}

/* ── 可折叠分段（文件名 / 内容） ────────────────────────── */

.file-search-section {
  margin-bottom: 6px;
}

.file-search-section-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 4px;
  cursor: pointer;
  user-select: none;
  border-radius: 6px;
  transition: background 0.15s;
}

.file-search-section-header:hover {
  background: rgba(0,0,0,0.03);
}

.file-search-section-arrow {
  font-size: 1rem;
  color: var(--text-muted);
  transition: transform 0.15s;
}

.file-search-section.collapsed .file-search-section-arrow {
  transform: rotate(-90deg);
}

.file-search-section-title {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-main);
}

.file-search-count {
  margin-left: auto;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.file-search-section.collapsed .file-search-section-body {
  display: none;
}

.file-search-section.is-empty .file-search-section-title,
.file-search-section.is-empty .file-search-count {
  color: var(--text-muted);
}

.file-search-list {
  display: flex;
  flex-direction: column;
}

.file-search-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.file-search-item:hover {
  background: rgba(0,0,0,0.03);
}

.file-search-item-icon {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 1px;
  flex-shrink: 0;
}

.file-search-item-info {
  flex: 1;
  min-width: 0;
}

.file-search-item-path {
  font-size: 0.8rem;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-search-root-tag {
  display: inline-block;
  font-size: 0.58rem;
  padding: 0px 5px;
  border-radius: 3px;
  background: var(--color-primary-soft, rgba(43,94,167,0.1));
  color: var(--color-primary);
  margin-right: 2px;
  vertical-align: middle;
  font-weight: 500;
}

.file-search-item-line {
  font-size: 0.7rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 1px;
}

/* ── 搜索结果点击后高亮 ────────────────────────────────── */

.file-item-highlight {
  animation: file-highlight-pulse 0.6s ease-in-out 3;
  background: rgba(43,94,167,0.12) !important;
}

@keyframes file-highlight-pulse {
  0%, 100% { background: rgba(43,94,167,0.06); }
  50% { background: rgba(43,94,167,0.18); }
}


}