/* ═══════════════════════════════════════════════════════
   NFO MediaInfo 注入管理器 — 样式表
   暗色玻璃态主题 · Inter 字体
═══════════════════════════════════════════════════════ */

/* ── CSS 变量 ─────────────────────────────────────────── */
:root {
  /* 背景层次 */
  --bg-base:       #0d0f14;
  --bg-surface:    #13161e;
  --bg-elevated:   #1a1e2a;
  --bg-hover:      #1f2535;
  --bg-active:     #252c3d;

  /* 边框 */
  --border-subtle: rgba(255,255,255,0.05);
  --border-normal: rgba(255,255,255,0.09);
  --border-bright: rgba(255,255,255,0.15);

  /* 文字 */
  --text-primary:   #e8ecf4;
  --text-secondary: #8892a4;
  --text-muted:     #525c72;
  --text-code:      #a8b8d8;

  /* 状态色 */
  --color-healthy:  #22c55e;
  --color-partial:  #f59e0b;
  --color-empty:    #ef4444;
  --color-missing:  #6b7280;

  /* 品牌色 */
  --accent:         #6366f1;
  --accent-hover:   #7c7fff;
  --accent-dim:     rgba(99,102,241,0.15);
  --danger:         #ef4444;
  --danger-hover:   #f87171;
  --danger-dim:     rgba(239,68,68,0.15);
  --success:        #22c55e;
  --warning:        #f59e0b;

  /* 尺寸 */
  --topbar-h:      52px;
  --tree-w:        300px;
  --tasks-w:       340px;
  --radius-sm:     6px;
  --radius-md:     10px;
  --radius-lg:     14px;

  /* 字体 */
  --font-ui:   'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* 过渡 */
  --transition: 150ms ease;
}

/* ── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── 顶栏 ─────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: rgba(13,15,20,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-normal);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 100;
  gap: 12px;
}

.topbar-left { display: flex; align-items: center; gap: 20px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 18px; }
.logo-text {
  font-size: 15px;
  font-weight: 600;
  background: linear-gradient(135deg, #818cf8 0%, #6ee7b7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.3px;
}

.global-stats { display: flex; align-items: center; gap: 6px; }
.stat-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 500;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  cursor: default;
  transition: var(--transition);
}
.stat-badge.healthy { color: var(--color-healthy); }
.stat-badge.partial { color: var(--color-partial); }
.stat-badge.empty   { color: var(--color-empty); }
.stat-badge.missing { color: var(--color-missing); }

/* ── 主布局 ───────────────────────────────────────────── */
.main-layout {
  position: fixed;
  top: var(--topbar-h);
  left: 0; right: 0; bottom: 0;
  display: grid;
  grid-template-columns: var(--tree-w) 1fr var(--tasks-w);
  overflow: hidden;
}

/* ── 面板通用 ─────────────────────────────────────────── */
.panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-right: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}
.panel:last-child { border-right: none; border-left: 1px solid var(--border-subtle); }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 9px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  background: var(--bg-elevated);
}
.panel-title {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
}
.panel-actions { display: flex; align-items: center; gap: 4px; }

/* ── 按钮 ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn .icon { font-size: 13px; }

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: transparent;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-primary:active { transform: none; }

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border-color: var(--border-normal);
}
.btn-secondary:hover { background: var(--bg-hover); border-color: var(--border-bright); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--bg-elevated); color: var(--text-primary); }

.btn-danger {
  background: var(--danger-dim);
  color: var(--danger);
  border-color: rgba(239,68,68,0.3);
}
.btn-danger:hover { background: var(--danger); color: white; }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
}
.btn-icon:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-icon-sm {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  transition: var(--transition);
}
.btn-icon-sm:hover { color: var(--text-secondary); background: var(--bg-hover); }

/* ── 目录树 ───────────────────────────────────────────── */
.tree-search {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.tree-search input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-normal);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 12px;
  outline: none;
  transition: var(--transition);
}
.tree-search input:focus { border-color: var(--accent); }
.tree-search input::placeholder { color: var(--text-muted); }

.tree-container {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 4px 0;
}

/* 树节点 */
.tree-node { user-select: none; }

.tree-item {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  cursor: pointer;
  border-radius: 0;
  transition: background var(--transition);
  min-height: 28px;
  position: relative;
}
.tree-item:hover { background: var(--bg-hover); }
.tree-item.selected { background: var(--accent-dim); }
.tree-item.selected::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}

.tree-indent { display: inline-block; width: 16px; flex-shrink: 0; }

.tree-toggle {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 10px;
  transition: transform var(--transition);
  flex-shrink: 0;
  border-radius: 3px;
}
.tree-toggle:hover { background: var(--bg-active); color: var(--text-secondary); }
.tree-toggle.open { transform: rotate(90deg); }
.tree-toggle.empty { visibility: hidden; }

.tree-icon { font-size: 13px; flex-shrink: 0; }

.tree-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12.5px;
}
.tree-node-dir .tree-name { color: var(--text-secondary); }
.tree-node-strm .tree-name { color: var(--text-primary); }

.tree-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-left: 2px;
}

.tree-index-badge {
  font-size: 11px;
  flex-shrink: 0;
  margin-left: 6px;
  opacity: 0.45;
  line-height: 1;
}
.tree-index-badge.indexed {
  opacity: 1;
  color: #10b981;
}

.tree-dir-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.tree-dir-badge span { min-width: 14px; text-align: right; }
.tree-dir-badge .b-h { color: var(--color-healthy); }
.tree-dir-badge .b-p { color: var(--color-partial); }
.tree-dir-badge .b-e { color: var(--color-empty); }
.tree-dir-badge .b-m { color: var(--color-missing); }
.tree-dir-badge .b-idx.all { color: var(--color-healthy); }
.tree-dir-badge .b-idx.partial { color: var(--color-partial); }
.tree-dir-badge .b-idx.none { color: var(--text-muted); opacity: 0.5; }

.tree-children { overflow: hidden; }
.tree-children.collapsed { display: none; }

/* 加载态 */
.loading-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px;
  color: var(--text-muted);
  font-size: 12px;
}
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-normal);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── 文件详情面板 ─────────────────────────────────────── */
.panel-detail {
  background: var(--bg-base);
  overflow: hidden;
}

.detail-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 8px;
  color: var(--text-muted);
}
.detail-empty-icon { font-size: 48px; opacity: 0.3; }
.detail-empty p { font-size: 14px; }
.detail-empty .hint { font-size: 12px; }

.detail-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
}

.detail-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  flex-shrink: 0;
}
.detail-file-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 3px;
}
.detail-file-path {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 8px;
  word-break: break-all;
}
.detail-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid currentColor;
}

.detail-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  flex-shrink: 0;
  flex-wrap: wrap;
}

/* ── 详情区块 ─────────────────────────────────────────── */
.detail-section {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.section-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

/* MediaInfo 卡片 */
.mediainfo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
}
.mi-stream-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-normal);
  border-radius: var(--radius-md);
  padding: 10px 12px;
}
.mi-stream-type {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.mi-stream-type.video { color: #818cf8; }
.mi-stream-type.audio { color: #34d399; }
.mi-stream-type.subtitle { color: #fb923c; }

.mi-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 2px 0;
}
.mi-key { font-size: 11px; color: var(--text-muted); flex-shrink: 0; }
.mi-val {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-primary);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.mi-val.highlight {
  color: var(--accent-hover);
  font-weight: 500;
}

/* 缺失字段提示 */
.missing-fields-warning {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: var(--radius-sm);
  margin-top: 8px;
  font-size: 11px;
  color: var(--color-partial);
}

.no-info-placeholder {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
}

/* XML & JSON 查看器 */
.xml-viewer, .json-viewer {
  background: var(--bg-elevated);
  border: 1px solid var(--border-normal);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text-code);
  overflow-x: auto;
  white-space: pre;
  max-height: 280px;
  overflow-y: auto;
  tab-size: 2;
}

/* ── 任务面板 ─────────────────────────────────────────── */
.panel-tasks { background: var(--bg-surface); }

.tasks-section {
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.tasks-section:last-child { border-bottom: none; flex: 1; overflow: hidden; display: flex; flex-direction: column; }

.log-section {
  flex: 1 !important;
  min-height: 200px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.tasks-section-label {
  padding: 7px 14px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.tasks-section-label.collapsible { cursor: pointer; }
.tasks-section-label.collapsible:hover { color: var(--text-secondary); }
.collapse-icon { margin-left: auto; transition: transform var(--transition); }

.tasks-list {
  padding: 6px 0;
  overflow-y: auto;
}
.tasks-empty {
  padding: 12px 14px;
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

/* 任务卡片 */
.task-card {
  margin: 4px 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-normal);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  transition: border-color var(--transition);
}
.task-card:hover { border-color: var(--border-bright); }
.task-card.running { border-color: rgba(99,102,241,0.4); }
.task-card.completed { border-color: rgba(34,197,94,0.25); }
.task-card.failed { border-color: rgba(239,68,68,0.25); }
.task-card.cancelled { border-color: rgba(107,114,128,0.25); }

.task-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  gap: 8px;
}
.task-path {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  direction: rtl;
  text-align: left;
}
.task-timer {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.task-status-pill {
  padding: 1px 7px;
  border-radius: 99px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.task-status-pill.pending  { background: rgba(107,114,128,0.2); color: var(--color-missing); }
.task-status-pill.running  { background: rgba(99,102,241,0.2); color: #818cf8; }
.task-status-pill.completed{ background: rgba(34,197,94,0.15); color: var(--color-healthy); }
.task-status-pill.failed   { background: var(--danger-dim); color: var(--danger); }
.task-status-pill.cancelled{ background: rgba(107,114,128,0.2); color: var(--text-muted); }

.task-progress-bar {
  height: 3px;
  background: var(--border-normal);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 5px;
}
.task-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #818cf8);
  border-radius: 99px;
  transition: width 0.3s ease;
}
.task-progress-fill.done { background: linear-gradient(90deg, var(--success), #4ade80); }
.task-progress-fill.error { background: var(--danger); }

.task-stats {
  display: flex;
  gap: 10px;
  font-size: 10.5px;
}
.task-stats .s-ok  { color: var(--color-healthy); }
.task-stats .s-skip{ color: var(--text-muted); }
.task-stats .s-fail { color: var(--color-empty); }
.task-stats .s-pct  { color: var(--text-secondary); margin-left: auto; }

.task-cancel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 6px;
  padding: 2px 8px;
  background: transparent;
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 4px;
  color: var(--danger);
  font-size: 10.5px;
  cursor: pointer;
  transition: var(--transition);
}
.task-cancel-btn:hover { background: var(--danger); color: white; }

/* 错误细分标签 */
.task-err-breakdown {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 5px;
}
.err-tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-family: var(--font-mono);
  font-weight: 500;
  cursor: default;
}
.err-tag.timeout   { background: rgba(245,158,11,0.15); color: var(--color-partial); border: 1px solid rgba(245,158,11,0.25); }
.err-tag.forbidden { background: rgba(239,68,68,0.15);  color: var(--color-empty);   border: 1px solid rgba(239,68,68,0.25); }
.err-tag.notfound  { background: rgba(107,114,128,0.15);color: var(--color-missing); border: 1px solid rgba(107,114,128,0.25); }
.err-tag.inject    { background: rgba(99,102,241,0.15); color: #818cf8;              border: 1px solid rgba(99,102,241,0.25); }
.err-tag.other     { background: rgba(107,114,128,0.1); color: var(--text-muted);    border: 1px solid var(--border-subtle); }

/* 取消行 */
.task-cancel-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 7px;
}
.task-cancel-hint {
  font-size: 10px;
  color: var(--text-muted);
  flex: 1;
}

/* 取消数量 */
.s-cancel { color: var(--text-muted); }


/* ── 日志 ─────────────────────────────────────────────── */
.log-status {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 99px;
}
.log-status.connected { background: rgba(34,197,94,0.15); color: var(--success); }
.log-status.disconnected { color: var(--text-muted); }

.log-container {
  flex: 1;
  overflow-y: auto;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  background: var(--bg-base);
}

.log-line {
  display: flex;
  gap: 8px;
  padding: 1px 0;
  border-radius: 3px;
  word-break: break-all;
}
.log-line:hover { background: var(--bg-surface); }
.log-time { color: var(--text-muted); flex-shrink: 0; font-size: 10px; }
.log-msg { flex: 1; }
.log-line.info    .log-msg { color: var(--text-secondary); }
.log-line.success .log-msg { color: var(--color-healthy); }
.log-line.warning .log-msg { color: var(--color-partial); }
.log-line.error   .log-msg { color: var(--color-empty); }

/* ── 右键菜单 ─────────────────────────────────────────── */
.context-menu {
  position: fixed;
  background: var(--bg-elevated);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  padding: 5px 0;
  min-width: 200px;
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  animation: fadeIn 0.1s ease;
}
.ctx-item {
  padding: 6px 14px;
  font-size: 12.5px;
  cursor: pointer;
  color: var(--text-primary);
  transition: background var(--transition);
}
.ctx-item:hover { background: var(--bg-hover); }
.ctx-item.ctx-danger { color: var(--danger); }
.ctx-item.ctx-danger:hover { background: var(--danger-dim); }
.ctx-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 0;
}

/* ── 模态框 ───────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease;
}

.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  min-width: 360px;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  animation: slideUp 0.2s ease;
}
.modal-wide { min-width: 560px; }

.modal-title {
  padding: 16px 20px 12px;
  font-size: 15px;
  font-weight: 600;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.modal-body {
  padding: 16px 20px;
  overflow-y: auto;
  flex: 1;
  white-space: pre-line;   /* 支持扫描结果中的换行 */
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--text-secondary);
}
.modal-body.rich {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-primary);
  white-space: normal;
}
.issues-list {
  display: flex;
  flex-direction: column;
}
.issue-item {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background 0.2s;
}
.issue-item:hover {
  background: var(--surface-hover);
}
.issue-path {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  word-break: break-all;
  margin-right: 12px;
}
.issue-status {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid;
  white-space: nowrap;
}
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

/* ── 配置面板 ─────────────────────────────────────────── */
.config-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 16px;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 3px;
}
.config-tab {
  flex: 1;
  padding: 5px 10px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-ui);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
}
.config-tab.active { background: var(--bg-elevated); color: var(--text-primary); }
.config-tab:hover:not(.active) { color: var(--text-secondary); }

.config-panel { display: none; }
.config-panel.active { display: block; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 14px;
}
.form-group label {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-secondary);
}
.form-group input, .form-group select {
  background: var(--bg-surface);
  border: 1px solid var(--border-normal);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 12px;
  outline: none;
  transition: border-color var(--transition);
}
.form-group input:focus { border-color: var(--accent); }
.form-hint {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

/* 路径映射规则列表 */
.mapping-rule {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  background: var(--bg-surface);
  padding: 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}
.mapping-rule input {
  background: var(--bg-base);
  border: 1px solid var(--border-normal);
  border-radius: 4px;
  padding: 5px 8px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  outline: none;
}
.mapping-rule input:focus { border-color: var(--accent); }
.mapping-remove {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  border-radius: 4px;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mapping-remove:hover { background: var(--danger-dim); }

/* ── 媒体库配置行（6 列：库名 / STRM / Media / URL根 / 启用 / 删除） ── */
.library-rule {
  grid-template-columns: 1fr 1.4fr 1.4fr 1.4fr auto auto;
}
.library-rule .library-name {
  font-family: var(--font-ui);
}
.library-enabled {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  cursor: pointer;
}
.library-enabled input { margin: 0; }

/* ── 通知 Toast ───────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.toast {
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 12.5px;
  color: white;
  animation: slideIn 0.2s ease;
  max-width: 320px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.toast.success { background: rgba(34,197,94,0.9); }
.toast.error   { background: rgba(239,68,68,0.9); }
.toast.info    { background: rgba(99,102,241,0.9); }

/* ── 滚动条 ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ── 动画 ─────────────────────────────────────────────── */
@keyframes fadeIn  { from { opacity: 0 } to { opacity: 1 } }
@keyframes slideUp { from { opacity: 0; transform: translateY(16px) } to { opacity: 1; transform: none } }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px) } to { opacity: 1; transform: none } }

/* ── 响应式 ───────────────────────────────────────────── */
@media (max-width: 1100px) {
  :root { --tree-w: 240px; --tasks-w: 280px; }
}