.course-picker[data-v-19d3831e]{border:1px solid #ebeef5;border-radius:8px;background:#fafbfc;overflow:hidden}.picker-toolbar[data-v-19d3831e]{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#fff;border-bottom:1px solid #ebeef5}.picker-search[data-v-19d3831e]{flex:1;min-width:0}.picker-stat[data-v-19d3831e]{flex-shrink:0;font-size:12px;color:#909399;white-space:nowrap}.picker-body[data-v-19d3831e]{max-height:420px;overflow-y:auto;padding:4px 0 8px}.picker-empty[data-v-19d3831e]{padding:28px 16px;text-align:center;font-size:13px}.course-picker[data-v-19d3831e] .el-collapse{border:none;background:transparent}.course-picker[data-v-19d3831e] .el-collapse-item__header{height:auto;min-height:44px;line-height:1.4;padding:8px 14px 8px 12px;background:#f5f7fa;border-bottom:1px solid #ebeef5;font-weight:400}.course-picker[data-v-19d3831e] .el-collapse-item__wrap{border-bottom:1px solid #ebeef5;background:#fff}.course-picker[data-v-19d3831e] .el-collapse-item__content{padding:10px 14px 12px}.category-title[data-v-19d3831e]{display:flex;align-items:center;gap:8px;width:100%;min-width:0}.category-name[data-v-19d3831e]{font-weight:600;color:#303133;flex-shrink:0}.category-meta[data-v-19d3831e]{font-size:12px;color:#909399;flex-shrink:0}.category-actions[data-v-19d3831e]{margin-left:auto;flex-shrink:0}.category-actions .el-button[data-v-19d3831e]{padding:0 4px}.muted-btn[data-v-19d3831e]{color:#909399!important}.category-courses[data-v-19d3831e]{display:flex;flex-direction:column;gap:2px}.course-item[data-v-19d3831e]{display:flex;align-items:flex-start;gap:8px;padding:8px 10px;border-radius:6px}.course-item.is-checked[data-v-19d3831e]{background:#ecf5ff}.course-item[data-v-19d3831e] .el-checkbox{margin-top:2px;flex-shrink:0}.course-title[data-v-19d3831e]{flex:1;min-width:0;font-size:13px;line-height:1.5;color:#303133;word-break:break-word;cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none}.course-title[data-v-19d3831e]:hover{color:#409eff}.muted[data-v-19d3831e]{color:#909399}.toolbar[data-v-4c42d35e]{display:flex;gap:8px;margin-bottom:12px}.card-panel[data-v-4c42d35e]{background:#fff;border-radius:8px;padding:12px;box-shadow:0 1px 4px rgba(0,0,0,.04)}.muted[data-v-4c42d35e]{color:#909399;font-size:12px}.danger-text[data-v-4c42d35e]{color:#f56c6c}.count-link[data-v-4c42d35e]{font-weight:600;padding:0}.dlg-tip[data-v-4c42d35e]{color:#909399;font-size:12px;margin:0 0 14px;line-height:1.6}.user-section[data-v-4c42d35e]{margin-bottom:20px}.user-section[data-v-4c42d35e]:last-child{margin-bottom:0}.add-section[data-v-4c42d35e]{padding-top:18px;border-top:1px solid #eef0f3}.section-label[data-v-4c42d35e]{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#1f2329;margin-bottom:12px}.search-grid[data-v-4c42d35e]{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;margin-bottom:12px;align-items:center}.user-cell[data-v-4c42d35e]{display:flex;align-items:center;gap:10px}.bound-pager[data-v-4c42d35e]{display:flex;justify-content:flex-end;margin-top:12px}@media (max-width:768px){.search-grid[data-v-4c42d35e]{grid-template-columns:1fr}}