flowchart TB
    recharge["客户真实充值
默认 1 USD = 100 积分；允许小数"]
    paid["真实充值积分余额"]
    annual["正式年付套餐
可包含初始开发、运维、运行资源"]
    independent["独立选配年度服务
域名：成本加服务费
邮箱：共享 / 独享"]
    manual["新增人工定制服务
评估金额，客户确认后消费"]
    included["套餐内含 AI 用量
正式项目可用；不是测试赠送"]
    usage["真实项目 AI 消耗
先用内含用量，超额扣真实积分"]
    trial["后续：新客测试赠送权益
独立记录，不可转真实余额"]
    preview["仅测试部署与受保护预览
禁正式域名；可撤销和销毁"]
    pricing["后台可配置价格政策
档位、费率、账户固定服务费、内含用量"]
    recharge --> paid
    paid -->|"购买"| annual
    paid -->|"购买"| independent
    paid -->|"确认金额后支付"| manual
    annual -->|"授予"| included
    included -->|"优先抵扣"| usage
    paid -->|"只支付超出包含用量的部分"| usage
    trial -.->|"仅限"| preview
    pricing --- annual
    pricing --- independent
    pricing --- manual
    pricing --- usage
    classDef future fill:#f4f4f5,stroke:#71717a,stroke-dasharray:5 4;
    class trial,preview future;