{
    "widgettype": "VBox",
    "options": {
        "width": "100%",
        "spacing": "12px"
    },
    "subwidgets": [
        {
            "widgettype": "HBox",
            "options": {
                "width": "100%",
                "justifyContent": "space-between",
                "alignItems": "center"
            },
            "subwidgets": [
                {
                    "widgettype": "HBox",
                    "options": {"spacing": "4px", "alignItems": "center"},
                    "subwidgets": [
                        {"widgettype": "Text", "options": {"text": "📂", "cfontsize": 16}},
                        {"widgettype": "Text", "options": {"text": "{{params_kw.folder_label or '全部文件'}}", "cfontsize": 16, "fontWeight": "bold", "color": "#333"}},
                        {"widgettype": "Text", "options": {"text": "({{params_kw.folder_id or 'root'}})", "cfontsize": 11, "color": "#aaa"}}
                    ]
                },
                {
                    "widgettype": "HBox",
                    "options": {"spacing": "8px"},
                    "subwidgets": [
                        {"widgettype": "Button", "options": {"label": "📁 上传文件", "bgcolor": "#4a90d9", "color": "#fff"}},
                        {"widgettype": "Button", "options": {"label": "📂 新建子目录", "bgcolor": "#e8e8e8", "color": "#666"}},
                        {"widgettype": "Button", "options": {"label": "🗑 删除选中", "bgcolor": "#f56c6c", "color": "#fff"}}
                    ]
                }
            ]
        },
        {
            "widgettype": "VBox",
            "options": {
                "width": "100%",
                "cheight": 5,
                "bgcolor": "#f8f9fa",
                "padding": "12px",
                "css": "card",
                "border": "2px dashed #d0d0d0",
                "alignItems": "center",
                "justifyContent": "center"
            },
            "subwidgets": [
                {"widgettype": "Text", "options": {"text": "拖拽文件到此处上传到当前目录", "cfontsize": 13, "color": "#888"}}
            ]
        },
        {
            "widgettype": "HBox",
            "options": {"width": "100%", "bgcolor": "#f5f5f5", "padding": "8px 12px", "borderBottom": "1px solid #e0e0e0"},
            "subwidgets": [
                {"widgettype": "Text", "options": {"text": "文件名", "cfontsize": 12, "fontWeight": "bold", "color": "#888", "cwidth": 18}},
                {"widgettype": "Text", "options": {"text": "类型", "cfontsize": 12, "fontWeight": "bold", "color": "#888", "cwidth": 6}},
                {"widgettype": "Text", "options": {"text": "大小", "cfontsize": 12, "fontWeight": "bold", "color": "#888", "cwidth": 6}},
                {"widgettype": "Text", "options": {"text": "状态", "cfontsize": 12, "fontWeight": "bold", "color": "#888", "cwidth": 6}},
                {"widgettype": "Text", "options": {"text": "上传时间", "cfontsize": 12, "fontWeight": "bold", "color": "#888"}}
            ]
        },
        {
            "widgettype": "Text",
            "options": {
                "text": "当前目录暂无文件",
                "color": "#aaa",
                "cfontsize": 13,
                "halign": "center"
            }
        }
    ]
}