{
    "type": "card",
    "theme": "info",
    "size": "lg",
    "modules": [
        {
            "text": {
                "content": "test1",
                "type": "plain-text",
                "emoji": true
            },
            "type": "header"
        },
        {
            "text": {
                "content": "test2",
                "type": "kmarkdown"
            },
            "type": "section",
            "mode": "left"
        },
        {
            "type": "divider"
        },
        {
            "text": {
                "fields": [
                    {
                        "content": "test3",
                        "type": "kmarkdown"
                    },
                    {
                        "content": "**test4**",
                        "type": "kmarkdown"
                    }
                ],
                "type": "paragraph",
                "cols": 2
            },
            "type": "section",
            "mode": "left"
        },
        {
            "elements": [
                {
                    "src": "https://img.kookapp.cn/attachments/2023-01/05/63b645851ff19.svg",
                    "type": "image",
                    "alt": "",
                    "size": "lg",
                    "circle": false
                }
            ],
            "type": "image-group"
        },
        {
            "src": "https://img.kookapp.cn/attachments/2023-01/05/63b645851ff19.svg",
            "title": "test5",
            "type": "file"
        },
        {
            "endTime": 1772343427360,
            "type": "countdown",
            "startTime": 1772343378259,
            "mode": "second"
        },
        {
            "elements": [
                {
                    "text": "点我测试回调",
                    "type": "button",
                    "theme": "primary",
                    "value": "btn_clicked",
                    "click": "return-val"
                },
                {
                    "text": "访问官网",
                    "type": "button",
                    "theme": "danger",
                    "value": "https://www.kookapp.cn",
                    "click": "link"
                }
            ],
            "type": "action-group"
        },
        {
            "elements": [
                {
                    "content": "test6",
                    "type": "plain-text",
                    "emoji": true
                }
            ],
            "type": "context"
        },
        {
            "code": "test7",
            "type": "invite"
        }
    ]
}