{"collected_at":"2026-08-18T22:37:26Z","data_type":"a-share-indices","source":"live","live":true,"_note":"调用时实时拉取，30秒缓存；失败退回快照","raw":{"source":"Tencent Finance/A股指数","indices":[{"index":"上证指数","code":"sh000001","price":3990.304,"change":63.124,"change_percent":1.61,"volume":"511234287","turnover":"113518767","last_updated":"2026-08-18T07:00:29Z"},{"index":"深证成指","code":"sz399001","price":14622.495,"change":268.195,"change_percent":1.87,"volume":"674616023","turnover":"126558702","last_updated":"2026-08-18T08:29:13Z"},{"index":"创业板指","code":"sz399006","price":3705.5645,"change":-34.5922,"change_percent":-0.92,"volume":"196213815","turnover":"60608277","last_updated":"2026-08-18T08:29:28Z"},{"index":"科创50","code":"sh000688","price":1790.8743,"change":2.0241,"change_percent":0.11,"volume":"11179921","turnover":"12252579","last_updated":"2026-08-18T07:00:29Z"}],"count":4}}