*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg-primary: #f5f7fb;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.95);
  --border: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(59, 130, 246, 0.4);
  --accent: #2563eb;
  --accent-dim: rgba(37, 99, 235, 0.1);
  --accent-btn-bg: #2563eb;
  --accent-btn-text: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
  --icon-plus: "+";
  --icon-close: "×";
  --icon-search: "⌕";
  --icon-file: "📄";
  --icon-folder: "📂";
  --icon-doc: "📑";
  --icon-check: "✓";
  --icon-download: "⬇";
  --icon-arrow-up: "↑";
  --icon-arrow-down: "↓";
  --icon-link: "🔗";
  --icon-warn: "⚠";
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgba(37,99,235,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(99,102,241,0.05) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.app {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.header-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #0088ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.header-title { flex: 1; }
.header-title h1 { font-size: 22px; font-weight: 600; letter-spacing: -0.3px; }
.header-title p { font-size: 13px; color: var(--text-secondary); margin-top: 1px; }
.header-tabs {
  flex-shrink: 0;
  margin-bottom: 0;
  background: rgba(15,23,42,0.04);
  padding: 4px;
  border-radius: var(--radius-sm);
}

.tabs { display: flex; gap: 4px; margin-bottom: 20px; background: rgba(15,23,42,0.04); padding: 4px; border-radius: var(--radius-sm); width: fit-content; }
.tab-btn { padding: 8px 20px; border: none; border-radius: 6px; background: transparent; color: var(--text-secondary); font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { background: var(--accent); color: var(--accent-btn-text); }

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

.main-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 520px;
  gap: 16px;
  align-items: stretch;
  height: calc(100vh - 220px);
}
@media (max-width: 1280px) { .main-layout { grid-template-columns: 280px minmax(0, 1fr) 460px; gap: 12px; } }
@media (max-width: 900px) { .main-layout { grid-template-columns: 1fr; height: auto; } }

/* 三栏统一高度：使三个面板高度一致 */
.left-panel, .middle-panel, .right-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.left-panel > .panel, .middle-panel > .panel, .right-panel > .panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* 左侧面板布局优化：上传区不拉伸，任务区可滚动 */
.left-panel > .panel:nth-child(1) { flex: 0 0 auto; }
.left-panel > .panel:nth-child(2) { flex: 1; min-height: 0; }
.left-panel > .panel:nth-child(2) > .panel-body { flex: 1; overflow-y: auto; }

/* 中栏缩略图面板 */
.middle-panel { display: flex; flex-direction: column; min-height: 0; }
.middle-panel .panel .panel-body { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.thumb-panel .preview-container { flex: 1; min-height: 0; overflow-y: auto; }
.thumb-panel .preview-container::-webkit-scrollbar { display: none; }
.thumb-panel .preview-container { -ms-overflow-style: none; scrollbar-width: none; }
.thumb-panel .thumb-grid { grid-template-columns: repeat(auto-fill, minmax(85px, 1fr)); gap: 8px; padding: 6px; }

/* 右栏大预览面板 */
.right-panel { position: sticky; top: 20px; min-height: 0; }
.right-panel .panel .panel-body { flex: 1; display: flex; flex-direction: column; min-height: 0; }
.large-preview-panel { flex: 1; min-height: 0; display: flex; flex-direction: column; }
.preview-zoom-toolbar {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 6px 12px; background: rgba(15,23,42,0.04);
  border-bottom: 1px solid var(--border); font-size: 11px;
  flex-shrink: 0;
}
.zoom-btn {
  width: 22px; height: 22px; border-radius: 4px;
  background: var(--bg-secondary); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 13px; font-weight: 600; color: var(--text-secondary);
  transition: all 0.2s;
}
.zoom-btn:hover { border-color: var(--accent); color: var(--accent); }
.zoom-btn.active { background: var(--accent); color: var(--accent-btn-text); border-color: var(--accent); }
.zoom-percent { font-weight: 600; color: var(--text-primary); min-width: 40px; text-align: center; }
.zoom-sep { color: var(--border); }
.zoom-hint { color: var(--text-muted); font-size: 10px; }
.large-preview-area {
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  flex: 1; overflow: auto;
  padding-top: 4px;
  scrollbar-width: none; -ms-overflow-style: none;
}
.large-preview-area::-webkit-scrollbar { display: none; }
.large-preview-canvas-wrapper {
  background: #fff;
  box-shadow: 0 4px 16px rgba(15,23,42,0.1);
  border-radius: 4px;
  padding: 4px;
}
.large-preview-canvas-wrapper canvas { display: block; }
.panel-header-meta {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); backdrop-filter: blur(8px); overflow: hidden; box-shadow: 0 1px 3px rgba(15,23,42,0.04); }
.panel-header { padding: 10px 14px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.panel-header h2 { font-size: 12px; font-weight: 600; color: var(--text-secondary); letter-spacing: 0.5px; text-transform: uppercase; }
.panel-body { padding: 12px; }

.file-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.file-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(15,23,42,0.03);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  max-width: 100%;
  flex: 1;
  min-width: 0;
}
.file-tab:hover { border-color: var(--border-hover); color: var(--text-primary); }
.file-tab.active { border-color: var(--accent); background: var(--accent-dim); color: var(--accent); }
.file-tab-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; min-width: 0; }
.file-tab-meta { font-size: 10px; color: var(--text-muted); margin-left: 2px; flex-shrink: 0; }
.file-tab-close {
  width: 18px; height: 18px; border-radius: 3px; border: none;
  background: transparent; color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; line-height: 1;
}
.file-tab-close:hover { background: rgba(220,38,38,0.1); color: var(--danger); }
.add-file-btn {
  display: flex; align-items: center; gap: 4px; padding: 6px 12px;
  border: 1px dashed var(--border); border-radius: 6px; background: transparent;
  color: var(--text-muted); font-size: 12px; cursor: pointer; transition: all 0.2s;
}
.add-file-btn:hover { border-color: var(--accent); color: var(--accent); }

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--accent); background: var(--accent-dim); }
.upload-zone-icon { font-size: 22px; margin-bottom: 6px; opacity: 0.7; }
.upload-zone-text { font-size: 12px; color: var(--text-secondary); margin-bottom: 3px; }
.upload-zone-hint { font-size: 10px; color: var(--text-muted); }
.upload-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.selected-info { display: none; margin-top: 10px; padding: 8px 10px; background: var(--accent-dim); border: 1px solid var(--border); border-radius: 4px; font-size: 11px; }
.selected-info.visible { display: block; }
.selected-info-row { display: flex; align-items: center; gap: 6px; color: var(--text-secondary); }
.selected-info-row span { color: var(--accent); font-weight: 500; }

.preview-container { position: relative; min-height: 0; flex: 1; display: flex; flex-direction: column; }
.preview-empty {
  position: absolute; inset: 0;
  text-align: center; color: var(--text-muted); font-size: 12px;
  display: flex; align-items: center; justify-content: center;
}

.thumb-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(70px, 1fr)); gap: 8px; padding: 4px; }
.thumb-item {
  min-width: 70px;
  max-width: 120px;
  background: rgba(15,23,42,0.03);
  border: 2px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  display: inline-block;
}
.thumb-item:hover { border-color: var(--border-hover); transform: translateY(-1px); }
.thumb-item.selected { border-color: var(--accent); box-shadow: 0 0 8px rgba(37,99,235,0.3); }
.thumb-item canvas { display: block; background: #fff; }
.thumb-item .page-num {
  position: absolute;
  bottom: 3px; right: 3px;
  background: rgba(15,23,42,0.75);
  color: #fff; font-size: 9px; padding: 1px 4px; border-radius: 3px; font-weight: 600;
}
.thumb-item.selected .page-num { background: var(--accent); color: var(--accent-btn-text); }

.task-card { background: rgba(15,23,42,0.02); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; transition: all 0.25s ease; }
.task-card:hover { border-color: var(--border-hover); }
.task-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.task-label { font-size: 11px; font-weight: 500; color: var(--text-muted); letter-spacing: 0.3px; }
.task-delete-btn {
  width: 28px; height: 28px; border-radius: 6px; border: none;
  background: transparent; color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 18px; transition: all 0.2s; line-height: 1;
}
.task-delete-btn:hover { background: rgba(220,38,38,0.1); color: var(--danger); }

.task-range { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
.task-range input {
  flex: 1; padding: 7px 10px; background: rgba(15,23,42,0.02);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary);
  font-size: 13px; outline: none; transition: border-color 0.2s; width: 0; min-width: 0;
}
.task-range input:focus { border-color: var(--accent); }
.task-range input::placeholder { color: var(--text-muted); }
.task-range-sep { color: var(--text-muted); font-size: 12px; flex-shrink: 0; }
.task-range-info { color: var(--text-muted); font-size: 10px; flex-shrink: 0; white-space: nowrap; }

.task-name { margin-bottom: 8px; }
.task-input-name {
  width: 100%; padding: 7px 10px; background: rgba(15,23,42,0.02);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary);
  font-size: 12px; outline: none; transition: border-color 0.2s;
}
.task-input-name:focus { border-color: var(--accent); }
.task-input-name::placeholder { color: var(--text-muted); }

.task-actions { display: flex; gap: 6px; }
.task-btn {
  flex: 1; padding: 7px 10px; border-radius: 4px; border: none;
  font-size: 12px; font-weight: 500; cursor: pointer; transition: all 0.25s ease;
  display: flex; align-items: center; justify-content: center; gap: 4px;
}
.btn-primary { background: var(--accent); color: var(--accent-btn-text); }
.btn-primary:hover { opacity: 0.92; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.25); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-success { background: rgba(22,163,74,0.12); color: var(--success); border: 1px solid rgba(22,163,74,0.3); }
.btn-success:hover { background: rgba(22,163,74,0.2); }
.btn-success:disabled { opacity: 0.4; cursor: not-allowed; }

.task-status { font-size: 11px; display: flex; align-items: center; gap: 6px; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.status-dot.pending { background: var(--text-muted); }
.status-dot.processing { background: var(--accent); animation: pulse 0.8s ease-in-out infinite; }
.status-dot.done { background: var(--success); }
.status-dot.error { background: var(--danger); }
.status-text { color: var(--text-secondary); }
@keyframes pulse { 0%, 100% { opacity: 0.4; transform: scale(0.9); } 50% { opacity: 1; transform: scale(1.1); } }

.tasks-section { display: flex; flex-direction: column; gap: 10px; }
.add-task-btn {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  width: 100%; padding: 10px; border: 1px dashed var(--border); border-radius: var(--radius-sm);
  background: transparent; color: var(--text-secondary); font-size: 12px; cursor: pointer;
  transition: all 0.25s ease; margin-top: 10px;
}
.add-task-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

.empty-state { text-align: center; padding: 40px 20px; }
.empty-state-icon { font-size: 40px; margin-bottom: 10px; opacity: 0.4; }
.empty-state-text { font-size: 13px; color: var(--text-muted); }

.loading-overlay { display: none; position: fixed; inset: 0; background: rgba(15,23,42,0.5); backdrop-filter: blur(4px); z-index: 100; align-items: center; justify-content: center; }
.loading-overlay.visible { display: flex; }
.loading-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 36px; text-align: center; box-shadow: 0 10px 30px rgba(15,23,42,0.15); }
.spinner {
  width: 32px; height: 32px; border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.7s linear infinite; margin: 0 auto 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-box p { font-size: 13px; color: var(--text-secondary); }

.action-hint { font-size: 10px; color: var(--text-muted); margin-top: 6px; text-align: center; padding: 4px; }

.preview-toolbar { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; background: rgba(15,23,42,0.02); border-bottom: 1px solid var(--border); font-size: 11px; color: var(--text-muted); }
.preview-toolbar .info { display: flex; align-items: center; gap: 4px; }
.preview-toolbar .info span { color: var(--accent); font-weight: 500; }

.merge-file-list { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.merge-file-item {
  display: flex; align-items: center; gap: 6px; padding: 8px 10px;
  background: rgba(15,23,42,0.02); border: 1px solid var(--border); border-radius: 4px; transition: all 0.2s;
}
.merge-file-item:hover { border-color: var(--border-hover); }
.merge-file-order {
  width: 22px; height: 22px; border-radius: 50%; background: var(--accent-dim); color: var(--accent);
  font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.merge-file-name { flex: 1; font-size: 13px; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.merge-file-pages { font-size: 11px; color: var(--text-muted); margin-left: 8px; flex-shrink: 0; }
.merge-file-btns { display: flex; gap: 4px; flex-shrink: 0; }
.icon-btn {
  width: 26px; height: 26px; border: 1px solid var(--border); border-radius: 4px;
  background: transparent; color: var(--text-muted); font-size: 13px; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all 0.2s; line-height: 1;
}
.icon-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.icon-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.merge-action { display: flex; flex-direction: column; gap: 8px; padding-top: 10px; border-top: 1px solid var(--border); }
.merge-name-input { display: flex; align-items: center; gap: 6px; }
.merge-name-input label { font-size: 11px; color: var(--text-muted); flex-shrink: 0; }
.merge-name-input input {
  flex: 1; padding: 7px 10px; background: rgba(15,23,42,0.02);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary);
  font-size: 12px; outline: none; transition: border-color 0.2s;
}
.merge-name-input input:focus { border-color: var(--accent); }

.insert-section { display: flex; flex-direction: column; gap: 10px; }
.insert-box { padding: 10px; background: rgba(15,23,42,0.02); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.insert-box-label { font-size: 11px; font-weight: 600; color: var(--accent); margin-bottom: 6px; letter-spacing: 0.5px; text-transform: uppercase; }
.insert-box-hint { font-size: 10px; color: var(--text-muted); margin-top: 4px; }

.insert-select {
  width: 100%; padding: 7px 10px; background: rgba(15,23,42,0.02);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary);
  font-size: 12px; outline: none; cursor: pointer; transition: border-color 0.2s;
}
.insert-select:focus { border-color: var(--accent); }
.insert-select option { background: var(--bg-secondary); color: var(--text-primary); }

.insert-row { display: flex; align-items: center; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.insert-row input[type="number"] {
  padding: 7px 10px; background: rgba(15,23,42,0.02);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary);
  font-size: 13px; outline: none; width: 80px; transition: border-color 0.2s;
}
.insert-row input[type="number"]:focus { border-color: var(--accent); }
.insert-row label { font-size: 11px; color: var(--text-muted); }
.insert-row span { font-size: 11px; color: var(--text-secondary); }

.insert-action { display: flex; flex-direction: column; gap: 8px; padding-top: 10px; border-top: 1px solid var(--border); }

.insert-summary { font-size: 11px; color: var(--text-secondary); padding: 6px 10px; background: var(--accent-dim); border-radius: 4px; border: 1px solid var(--border); }

/* 压缩面板 */
.compress-options { padding: 10px; background: rgba(15,23,42,0.02); border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; }
.compress-options-label { font-size: 11px; font-weight: 600; color: var(--accent); margin-bottom: 8px; letter-spacing: 0.5px; text-transform: uppercase; }
.compress-slider-row { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.compress-slider-row input[type="range"] { flex: 1; }
.compress-slider-row span { font-size: 12px; color: var(--text-secondary); min-width: 40px; text-align: right; }
.compress-hint { font-size: 10px; color: var(--text-muted); margin-top: 4px; }
.compress-result { padding: 10px 12px; background: rgba(15,23,42,0.03); border-radius: 6px; font-size: 12px; color: var(--text-secondary); margin-top: 10px; display: none; }
.compress-result.visible { display: block; }
.compress-result-row { display: flex; justify-content: space-between; margin-bottom: 4px; }
.compress-result-row strong { color: var(--text-primary); }
.compress-result-row .saved { color: var(--success); font-weight: 600; }
.compress-task-list { display: flex; flex-direction: column; gap: 8px; }
.compress-task-card { padding: 12px; background: rgba(15,23,42,0.03); border: 1px solid var(--border); border-radius: var(--radius-sm); transition: all 0.2s; }
.compress-task-card:hover { border-color: var(--border-hover); }
.compress-task-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.compress-task-name { font-size: 12px; color: var(--text-primary); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.compress-task-status { font-size: 11px; font-weight: 600; }
.compress-task-progress { margin-bottom: 8px; }
.compress-progress-bar { height: 6px; background: rgba(15,23,42,0.1); border-radius: 3px; overflow: hidden; }
.compress-progress-fill { height: 100%; border-radius: 3px; transition: width 0.3s ease; }
.compress-progress-text { font-size: 10px; color: var(--text-muted); margin-top: 4px; text-align: right; }
.compress-task-progress-only { display: flex; flex-direction: column; gap: 8px; }
.compress-progress-step { font-size: 12px; color: var(--accent); font-weight: 500; }
.compress-task-result { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; font-size: 11px; }
.compress-task-actions { display: flex; gap: 6px; }
.compress-task-actions .task-btn { flex: 1; padding: 6px 8px; font-size: 11px; }
.compress-task-error { font-size: 11px; }

/* 转换面板 */
.convert-mode-switcher {
  display: flex; gap: 0; margin-bottom: 12px;
  background: rgba(15,23,42,0.04); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 3px;
}
.convert-mode-btn {
  flex: 1; padding: 7px 10px; font-size: 12px; font-weight: 500;
  background: transparent; color: var(--text-secondary);
  border: none; border-radius: 4px; cursor: pointer;
  transition: all 0.15s;
}
.convert-mode-btn:hover { color: var(--text-primary); background: rgba(15,23,42,0.04); }
.convert-mode-btn.active {
  background: var(--bg-secondary); color: var(--accent);
  box-shadow: 0 1px 2px rgba(15,23,42,0.08);
  font-weight: 600;
}
.convert-options { padding: 10px; background: rgba(15,23,42,0.02); border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; }
.convert-options-label { font-size: 11px; font-weight: 600; color: var(--accent); margin-bottom: 8px; letter-spacing: 0.5px; text-transform: uppercase; }
.convert-option-row { display: flex; align-items: center; gap: 10px; }
.convert-option-row label { font-size: 11px; color: var(--text-muted); flex-shrink: 0; }
.convert-select {
  flex: 1; padding: 7px 10px; background: rgba(15,23,42,0.02);
  border: 1px solid var(--border); border-radius: 4px; color: var(--text-primary);
  font-size: 12px; outline: none; cursor: pointer; transition: border-color 0.2s;
}
.convert-select:focus { border-color: var(--accent); }
.convert-select option { background: var(--bg-secondary); color: var(--text-primary); }
.convert-task-list { display: flex; flex-direction: column; gap: 8px; }

/* PDF转图片面板 */
.pdfToImage-select-actions { display: flex; gap: 6px; margin-top: 8px; }
.pdfToImage-mini-btn {
  flex: 1; padding: 4px 8px; font-size: 11px;
  background: rgba(37,99,235,0.08); color: var(--accent);
  border: 1px solid rgba(37,99,235,0.25); border-radius: 4px;
  cursor: pointer; transition: all 0.15s;
}
.pdfToImage-mini-btn:hover { background: rgba(37,99,235,0.15); }
.pdfToImage-mini-btn:active { transform: translateY(1px); }