楼主，非常感谢提供的5542体系。我也是5542的支持者。我这儿还有一个比较特殊的5542框架，请评论或帮助设计后续内容。
Responses to 1C:
- pass 0-4HCP, without a long major
- 1D 4+H, unlimited or 17+ bal
- 1H 4+S, unlimited
- 1S (5+C unlimited) or (5-16<4S<4H<6D)
- 1NT 5+D GF or 6+D 8+
- 2C 6+D, 4-7 or 13+ semi-solid
- 2D 6+H, 4-7 or 13+ semi-solid
- 2H 6+S, 4-7 or 13+ semi-solid
- 2S AKQxxxx+ any suit
- 2NT 6+C, 4-7 or 13+ semi-solid
- 3 any preemptive

Opener’s re-bid after 1C – 1D
- 1H 5+C unbal, <4S<3H
- 1S 4+S 5+C
- 1NT 12-14, <4H, bal
- 2C 18-21, <4H, bal
- 2D 3H 5+C 15+
- 2H 3+H, 12-14
- 2S 4+S, GF
- 2NT 4H 15+
3C&up very strong club one-suiters