Do a single point

Buy Level: Consider buying when the price touches around 86040 as this is a previous low with some support.
Sell Level: Consider selling when the price touches around 86220 as this is a previous high with strong resistance.
Take Profit and Stop Loss levels
Take Profit Level: Stop Loss Level: 85900 (slightly below 86040 support level)
Take Profit Level: 86350 (slightly above 86220 resistance)

Risk Management
Stop Loss Setting: Set a stop loss at 85900 to ensure that the risk is controllable.
Take Profit Setting: Set Take Profit at 86350 to ensure that the profit target is reasonable.
summary
Combined with the analysis of the 15-minute, 1-hour and 4-hour charts, it is recommended to consider buying when the price touches around 86040, with a stop loss at 85900 and a take profit at 86350. Pay close attention to market dynamics and changes in technical indicators, and adjust your trading strategy in a timely manner.