{
    "widgettype": "VBox",
    "options": {
        "cheight": 40,
        "width": "100%",
        "padding": "16px",
        "spacing": "12px"
    },
    "subwidgets": [
        {
            "widgettype": "HBox",
            "options": {
                "width": "100%",
                "justifyContent": "space-between",
                "alignItems": "center"
            },
            "subwidgets": [
                {
                    "widgettype": "VBox",
                    "options": {"spacing": "4px"},
                    "subwidgets": [
                        {"widgettype": "Text", "options": {"text": "知识库管理", "cfontsize": 22, "fontWeight": "bold", "color": "#333"}},
                        {"widgettype": "Text", "options": {"text": "创建和管理您的多媒体知识库", "cfontsize": 14, "color": "#888"}}
                    ]
                },
                {
                    "widgettype": "Button",
                    "options": {
                        "label": "+ 新建知识库",
                        "bgcolor": "#4a90d9",
                        "color": "#fff"
                    }
                }
            ]
        },
        {
            "widgettype": "Text",
            "options": {
                "text": "暂无知识库，点击上方按钮创建第一个知识库",
                "color": "#aaa",
                "cfontsize": 14,
                "halign": "center"
            }
        }
    ]
}