.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}