/* ============================================================
 * 灵音托管引擎自动化工作台 - 布局样式 (layout-sidebar-header.css)
 * 抽取侧边栏 + 顶部导航 + 主内容区布局
 * ============================================================ */

/* ===== 主应用容器 ===== */
.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* 确保侧边栏挂载点不被 flex 压缩 */
#mount-sidebar {
  flex-shrink: 0;
}

/* ============================================================
 * 侧边栏
 * ============================================================ */
.sidebar {
  height: 100%;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  flex-shrink: 0;
  position: relative;
  z-index: 100;
  overflow: hidden;
  border-radius: 0 12px 12px 0;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .sidebar-header {
  padding: 0 8px;
  justify-content: center;
}

.sidebar.collapsed .logo-text {
  display: none;
}

.sidebar.collapsed .sidebar-header .toggle-btn {
  display: none;
}

.sidebar.collapsed .menu-item {
  padding: 0;
  justify-content: center;
}

.sidebar.collapsed .menu-label {
  display: none;
}

.sidebar.collapsed .menu-item i {
  margin: 0;
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sidebar-header .logo-text {
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-header .toggle-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: var(--transition);
  flex-shrink: 0;
}

.sidebar-header .toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* 侧边栏右侧边缘折叠按钮 */
.sidebar .sidebar-collapse-btn {
  position: absolute;
  right: -16px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 48px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: none;
  border-radius: 0 8px 8px 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 10px;
  transition: var(--transition);
  z-index: 101;
}

.sidebar .sidebar-collapse-btn:hover {
  background: var(--bg-hover);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.sidebar.collapsed .sidebar-collapse-btn i {
  transform: rotate(180deg);
}

.sidebar-menu {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.menu-item {
  display: flex;
  align-items: center;
  padding: 0 16px;
  height: 44px;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  white-space: nowrap;
  position: relative;
}

.menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.menu-item.active {
  background: var(--bg-active);
  color: var(--accent-cyan);
}

.menu-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--accent-cyan);
  border-radius: 0 2px 2px 0;
}

.menu-item i {
  width: 20px;
  font-size: 16px;
  flex-shrink: 0;
  text-align: center;
}

.menu-item .menu-label {
  margin-left: 12px;
  font-size: 14px;
  flex: 1;
}

.menu-item .menu-arrow {
  font-size: 12px;
  transition: var(--transition);
}

.menu-item .menu-arrow.open {
  transform: rotate(90deg);
}

.sub-menu {
  overflow: hidden;
  transition: var(--transition);
}

.sub-menu .menu-item {
  padding-left: 48px;
  height: 38px;
  font-size: 13px;
}

/* 赛博朋克侧边栏滚动条 */
.sidebar-menu::-webkit-scrollbar {
  width: 3px;
}
.sidebar-menu::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-menu::-webkit-scrollbar-thumb {
  background: rgba(255, 0, 180, 0.2);
  border-radius: 3px;
}
.sidebar-menu::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 0, 180, 0.4);
}

/* ============================================================
 * HUD 顶部运行状态滚动条
 * ============================================================ */
.hud-status-bar {
  height: 28px;
  background: var(--bg-primary);
  border-bottom: 1px solid rgba(6, 182, 212, 0.15);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 20px;
  font-size: 11px;
  font-family: 'Menlo', 'Consolas', monospace;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.hud-status-bar .hud-item {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  color: var(--text-secondary);
}

.hud-status-bar .hud-item .hud-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  animation: hudPulse 1.5s ease-in-out infinite;
}

.hud-status-bar .hud-item .hud-dot.green {
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
}
.hud-status-bar .hud-item .hud-dot.blue {
  background: var(--accent-blue);
  box-shadow: 0 0 6px var(--accent-blue);
}
.hud-status-bar .hud-item .hud-dot.cyan {
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

.hud-status-bar .hud-item .hud-value {
  color: var(--accent-cyan);
  font-weight: 600;
}

.hud-status-bar .hud-scroll {
  flex: 1;
  overflow: hidden;
  position: relative;
  height: 100%;
}

.hud-status-bar .hud-scroll-inner {
  position: absolute;
  top: 0;
  left: 0;
  white-space: nowrap;
  animation: hudScroll 30s linear infinite;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
  color: var(--text-muted);
  font-size: 11px;
}

.hud-status-bar .hud-scroll-inner span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hud-status-bar .hud-scroll-inner .accent {
  color: var(--accent-cyan);
}

/* HUD 数据面板 */
.hud-data-panel {
  display: flex;
  gap: 0;
  border-left: 1px solid rgba(0, 217, 255, 0.1);
  flex-shrink: 0;
  height: 100%;
}

.hud-data-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border-right: 1px solid rgba(0, 217, 255, 0.06);
  height: 100%;
  gap: 1px;
  min-width: 64px;
  transition: var(--transition);
}

.hud-data-item:hover {
  background: rgba(0, 217, 255, 0.04);
}

.hud-data-item:last-child {
  border-right: none;
}

.hud-data-item .hud-dl {
  font-size: 9px;
  color: rgba(0, 217, 255, 0.5);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1;
}

.hud-data-item .hud-dv {
  font-size: 13px;
  font-weight: 700;
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  background: linear-gradient(135deg, #00d9ff, #00b4d8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hud-data-item .hud-ds {
  font-size: 8px;
  color: rgba(139, 164, 199, 0.4);
  line-height: 1;
}

.hud-data-item .hud-dv.updating {
  animation: dataFlicker 0.4s ease-in-out;
}

/* 状态指示灯 */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.status-dot.online {
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
  animation: hudPulse 2s ease-in-out infinite;
}

.status-dot.offline {
  background: var(--accent-red);
  box-shadow: 0 0 6px var(--accent-red);
  animation: hudPulse 1.5s ease-in-out infinite;
}

.status-dot.warning {
  background: var(--accent-orange);
  box-shadow: 0 0 6px var(--accent-orange);
  animation: hudPulse 1s ease-in-out infinite;
}

.status-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  opacity: 0;
  animation: dotRingPulse 2s ease-out infinite;
}

.status-dot.online::after {
  border-color: var(--accent-green);
}
.status-dot.offline::after {
  border-color: var(--accent-red);
}

/* 麦克风状态 */
.hud-mic-status {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px;
  border-radius: 12px;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.15);
  cursor: pointer;
  flex-shrink: 0;
  transition: var(--transition);
}

.hud-mic-status:hover {
  background: rgba(6, 182, 212, 0.15);
}

.hud-mic-status .mic-wave {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 14px;
}

.hud-mic-status .mic-wave span {
  width: 3px;
  border-radius: 2px;
  background: var(--accent-cyan);
  animation: micWave 0.8s ease-in-out infinite;
}

.hud-mic-status .mic-wave span:nth-child(1) { height: 6px; animation-delay: 0s; }
.hud-mic-status .mic-wave span:nth-child(2) { height: 10px; animation-delay: 0.15s; }
.hud-mic-status .mic-wave span:nth-child(3) { height: 14px; animation-delay: 0.3s; }
.hud-mic-status .mic-wave span:nth-child(4) { height: 10px; animation-delay: 0.45s; }
.hud-mic-status .mic-wave span:nth-child(5) { height: 6px; animation-delay: 0.6s; }

.hud-mic-status .mic-wave.listening span {
  background: var(--accent-green);
}
.hud-mic-status .mic-wave.processing span {
  background: var(--accent-orange);
}

/* ============================================================
 * 顶部导航栏
 * ============================================================ */
.top-bar {
  height: var(--header-height);
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 20px;
  flex-shrink: 0;
  position: relative;
  z-index: 1000;
}

.top-bar .page-title {
  font-size: 16px;
  font-weight: 600;
}

.top-bar .page-title i {
  margin-right: 8px;
  color: var(--accent-cyan);
}

.top-bar .top-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.top-bar .top-actions .action-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  height: 34px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.top-bar .top-actions .action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--accent-blue);
}

.top-bar .top-actions .action-btn i {
  font-size: 14px;
}

.top-bar .user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 13px;
  margin-left: 16px;
}

.top-bar .user-info .avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
}

/* ============================================================
 * 主内容区布局
 * ============================================================ */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ============================================================
 * 路由页面容器
 * ============================================================ */
.page-container {
  display: none;
  flex: 1;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.page-container.page-active {
  display: flex;
  opacity: 1;
}

/* 查询页面内部容器 */
#page-query {
  padding: 0;
}

#mount-search-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 16px;
  padding-bottom: 60px;
}
/* 主页面查询中心填充剩余空间，避免顶部空白和底部遮挡 */
#mount-search-page .query-container {
  flex: 1 !important;
  height: auto !important;
  min-height: 0;
}
#mount-search-page .query-left {
  flex: 1 !important;
  height: auto !important;
  min-height: 0;
}

/* 操作统计页面内部容器 */
#page-operation-log {
  padding: 0;
}

/* 待办页面内部容器 */
#page-todo-list {
  padding: 0;
}

/* AI 助手页面 */
#page-ai-assistant {
  padding: 0;
  position: relative;
}

/* 内容区赛博滚动条 */
.content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 1200px;
  padding: 20px;
}
.content-area::-webkit-scrollbar {
  width: 3px;
}
.content-area::-webkit-scrollbar-track {
  background: transparent;
}
.content-area::-webkit-scrollbar-thumb {
  background: rgba(0, 217, 255, 0.2);
  border-radius: 3px;
}
.content-area::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 217, 255, 0.4);
}

/* 仪表盘页面内部滚动条 */
.page-container::-webkit-scrollbar {
  width: 3px;
}
.page-container::-webkit-scrollbar-track {
  background: transparent;
}
.page-container::-webkit-scrollbar-thumb {
  background: rgba(0, 217, 255, 0.15);
  border-radius: 3px;
}

/* ============================================================
 * 响应式断点
 * ============================================================ */

/* 平板横屏 */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 200px;
    --sidebar-collapsed-width: 56px;
  }
  .content-area {
    padding: 16px;
  }
}

/* 平板/移动端 */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 100vw;
    --sidebar-collapsed-width: 0px;
    --header-height: 48px;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-100%);
    z-index: 200;
    width: 280px;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .top-bar {
    padding: 0 12px;
  }

  .top-bar .page-title {
    font-size: 14px;
  }

  .content-area {
    padding: 12px;
  }

  .hud-status-bar {
    padding: 0 8px;
    gap: 10px;
    font-size: 10px;
  }
}

/* 移动端竖屏 */
@media (max-width: 480px) {
  :root {
    --header-height: 44px;
  }

  .top-bar .user-info {
    display: none;
  }

  .top-bar .top-actions {
    gap: 6px;
  }

  .top-bar .top-actions .action-btn {
    height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }
}

/* ============================================================
 * 背景管理面板
 * ============================================================ */
.bg-manage-area {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(59, 130, 246, 0.12);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bg-upload-btn {
  width: 100%;
  padding: 7px 12px;
  font-size: 12px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px dashed rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.bg-upload-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
}

.bg-restore-btn {
  width: 100%;
  padding: 6px 12px;
  font-size: 11px;
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.15);
  border-radius: var(--radius-sm);
  color: rgba(239, 68, 68, 0.6);
  cursor: pointer;
  transition: var(--transition);
}

.bg-restore-btn:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
  background: rgba(239, 68, 68, 0.08);
}

.bg-status-text {
  font-size: 10px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 2px;
}

/* ============================================================
 * QQ 风格折叠侧边栏
 * ============================================================ */
#mount-qq-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 150;
  flex-shrink: 0;
  pointer-events: none;
}

#mount-qq-sidebar .qq-sidebar {
  pointer-events: auto;
}

.qq-sidebar {
  height: 100%;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  overflow: hidden;
  position: relative;
  margin-left: 4px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

.qq-sidebar.hidden {
  transform: translateX(-100%);
}

/* 隐藏状态下左侧按钮可见 */
.qq-sidebar.hidden ~ .sidebar-expand-btn {
  display: flex;
}

/* 展开状态下隐藏左侧按钮 */
.qq-sidebar:not(.hidden) ~ .sidebar-expand-btn {
  display: none;
}

/* 侧边栏展开按钮（左侧边缘） */
.sidebar-expand-btn {
  position: fixed;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 48px;
  background: var(--bg-secondary);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 12px;
  transition: var(--transition);
  z-index: 99999;
}

.sidebar-expand-btn:hover {
  background: var(--bg-hover);
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.qq-sidebar-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.qq-sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 10px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.qq-sidebar-brand {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  flex-shrink: 0;
  box-shadow: var(--shadow-glow);
  animation: qq-brand-pulse 3s ease-in-out infinite;
}

/* 品牌 Logo 霓虹呼吸发光 */
@keyframes qq-brand-pulse {
  0%, 100% { box-shadow: 0 0 8px rgba(6, 182, 212, 0.25); }
  50% { box-shadow: 0 0 18px rgba(6, 182, 212, 0.55), 0 0 6px rgba(59, 130, 246, 0.4); }
}

.qq-brand-text {
  font-size: 16px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  transition: var(--transition);
}

.qq-sidebar.collapsed .qq-brand-text {
  display: none;
}

.qq-sidebar-groups {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.qq-sidebar-group {
  margin: 0 8px 4px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.qq-group-header {
  display: flex;
  align-items: center;
  padding: 6px 10px;
  gap: 8px;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  user-select: none;
}

/* 分组头彩色圆点指示 */
.qq-group-header::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px rgba(6, 182, 212, 0.8);
  flex-shrink: 0;
}

.qq-sidebar-group:nth-of-type(2) .qq-group-header::before {
  background: var(--accent-purple);
  box-shadow: 0 0 6px rgba(139, 92, 246, 0.8);
}

.qq-sidebar-group:nth-of-type(3) .qq-group-header::before {
  background: var(--accent-orange);
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.8);
}

.qq-group-header i {
  font-size: 10px;
  width: 14px;
  text-align: center;
}

.qq-group-name {
  transition: var(--transition);
}

/* 内置组（导航/工具）标题圆点 —— 无 .qq-group-header 的组 */
.qq-sidebar-group:not(:has(.qq-group-header)) > .qq-group-name {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qq-sidebar-group:not(:has(.qq-group-header)) > .qq-group-name::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 6px rgba(6, 182, 212, 0.8);
  flex-shrink: 0;
}

.qq-sidebar-group:nth-of-type(2):not(:has(.qq-group-header)) > .qq-group-name::before {
  background: var(--accent-purple);
  box-shadow: 0 0 6px rgba(139, 92, 246, 0.8);
}

.qq-sidebar-group:nth-of-type(3):not(:has(.qq-group-header)) > .qq-group-name::before {
  background: var(--accent-orange);
  box-shadow: 0 0 6px rgba(245, 158, 11, 0.8);
}

.qq-sidebar.collapsed .qq-group-name {
  display: none;
}

.qq-group-items {
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: max-height 0.25s ease, opacity 0.2s ease;
  max-height: 500px;
  overflow: hidden;
}

.qq-sidebar-group.group-collapsed .qq-group-items {
  max-height: 0;
  opacity: 0;
}

.qq-sidebar-group.group-collapsed .qq-group-toggle {
  transform: rotate(-90deg);
}

.qq-group-toggle {
  margin-left: auto;
  font-size: 10px;
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.qq-group-header {
  cursor: pointer;
}

.qq-app-item {
  display: flex;
  align-items: center;
  padding: 7px 10px;
  gap: 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: var(--transition);
  user-select: none;
  position: relative;
}

/* 选中态：左侧指示条 + 发光边框 + 渐变背景 */
.qq-app-item.active {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.16), rgba(59, 130, 246, 0.08));
  border: 1px solid rgba(6, 182, 212, 0.35);
  box-shadow: var(--shadow-glow);
  color: var(--text-primary);
  padding: 7px 9px;
}

.qq-app-item.active::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 20%;
  bottom: 20%;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-blue));
  box-shadow: 0 0 6px rgba(6, 182, 212, 0.8);
}

.qq-app-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  transform: translateX(2px);
}

.qq-app-item i {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 5px;
  color: var(--text-primary);
  transition: var(--transition);
}

/* hover 图标发光放大 */
.qq-app-item:hover i {
  transform: scale(1.12);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.5);
}

.qq-app-item.active i {
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.6);
}

.qq-app-name {
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: var(--transition);
}

.qq-sidebar.collapsed .qq-app-name {
  display: none;
}

.qq-sidebar.collapsed .qq-app-item {
  justify-content: center;
  padding: 8px;
}

/* 折叠态选中项：图标发光 + 圆角高亮背景 */
.qq-sidebar.collapsed .qq-app-item.active {
  padding: 8px;
  border: 1px solid rgba(6, 182, 212, 0.35);
  box-shadow: var(--shadow-glow);
}

.qq-sidebar.collapsed .qq-app-item.active::before {
  display: none;
}

.qq-sidebar.collapsed .qq-app-item.active i {
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.6);
}

.qq-sidebar.collapsed .qq-app-item i {
  width: 28px;
  height: 28px;
  font-size: 13px;
  border-radius: 12px;
}

.qq-sidebar.collapsed .qq-sidebar-group {
  margin: 0 6px 4px;
}

.qq-sidebar-footer {
  border-top: 1px solid var(--border-color);
  padding: 6px 8px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* 侧边栏中间按钮：控制右侧面板 */
.qq-sidebar-center-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid rgba(6, 182, 212, 0.12);
  transition: var(--transition);
  font-size: 14px;
}

.qq-sidebar-center-btn:hover {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.35);
}

.qq-sidebar-center-btn.active {
  background: rgba(6, 182, 212, 0.2);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.5);
}

.qq-toggle-btn {
  width: 100%;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: var(--transition);
  font-size: 14px;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.15);
}

.qq-toggle-btn:hover {
  background: rgba(6, 182, 212, 0.18);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.4);
}

.qq-sidebar.collapsed .qq-toggle-btn i {
  transform: rotate(180deg);
}

/* QQ 侧边栏滚动条 */
.qq-sidebar-groups::-webkit-scrollbar {
  width: 3px;
}
.qq-sidebar-groups::-webkit-scrollbar-track {
  background: transparent;
}
.qq-sidebar-groups::-webkit-scrollbar-thumb {
  background: rgba(6, 182, 212, 0.2);
  border-radius: 3px;
}
.qq-sidebar-groups::-webkit-scrollbar-thumb:hover {
  background: rgba(6, 182, 212, 0.4);
}

/* ============================================================
 * 底部轻量化任务栏
 * ============================================================ */
#mount-taskbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
}

.lwm-taskbar {
  height: 40px;
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 8px;
  gap: 4px;
}

.lwm-taskbar-items {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  flex: 1;
  height: 100%;
  padding: 4px 0;
}

.lwm-taskbar-items::-webkit-scrollbar {
  height: 0;
}

.lwm-taskbar-item {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
  font-size: 12px;
  border: 1px solid transparent;
}

.lwm-taskbar-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.lwm-taskbar-item.active {
  background: rgba(6, 182, 212, 0.1);
  border-color: rgba(6, 182, 212, 0.25);
  color: var(--accent-cyan);
}

.lwm-taskbar-item.minimized {
  opacity: 0.55;
}

.lwm-taskbar-item i:first-child {
  font-size: 12px;
  flex-shrink: 0;
}

.lwm-taskbar-title {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lwm-taskbar-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  flex-shrink: 0;
  transition: var(--transition);
  margin-left: 2px;
  padding: 0;
}

.lwm-taskbar-close:hover {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
}

/* 任务栏响应式：移动端隐藏标题 */
@media (max-width: 768px) {
  .lwm-taskbar-title {
    display: none;
  }
  .lwm-taskbar-item {
    padding: 0 8px;
    gap: 0;
  }
}