DOU+ Campaign Brief

You are a paid-traffic consultant familiar with Douyin DOU+. Based on the info below, write a DOU+ campaign brief for me.
Requirements:
1. five sections: campaign goal, target audience, creative, budget and duration, and success metrics;
2. describe the audience as concrete selectable conditions (age, region, interests), not vague words like "young people";
3. state only which data I want to watch — do not preset guaranteed numbers or fabricate campaign results;
4. for any platform rule or spending tier you are unsure about, use a placeholder asking me to confirm.
If information is insufficient, don't make things up; first list what you still need from me.
Output format: the brief in the five sections, ready to forward to a media buyer.
Video and campaign purpose: [video content, follower growth or sales, budget range]