The costs of traffic investment vary for different advertisers and different regions, and you need to refer to the pricing standards and delivery strategies of the Douyin platform for specific details. According to the pricing standards of the Douyin platform, advertisers can choose different bidding strategies based on their budgets and delivery purposes, including bidding by clicks, exposure, conversions, etc. At the same time, advertisers can also conduct precise delivery based on different regions and user attributes, thereby effectively improving advertising effectiveness. It should be noted that the Douyin platform has certain requirements for user experience, and the content of advertisements must comply with ethical standards and laws and regulations. Low-quality advertisements will also be strictly reviewed and restricted to ensure user experience and platform brand image. Therefore, the specific cost of traffic investment needs to be evaluated and formulated based on the actual needs and delivery strategies of advertisers.