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This skill is designed to help you generate compelling subject lines and preview text for various marketing emails, thereby increasing open rates and user engagement. Whether you are a marketer, brand operator, or content creator, it can help you stand out from a crowded inbox. This skill intelligently generates compliant copy based on the email type (e.g., promotional emails, new product emails, discount emails, newsletters, etc.), brand information, core marketing messages, and product range. It strictly adheres to the principles of subject line and preview text length, composition formula, and their relationship, ensuring concise and complementary content while avoiding repetition and information overload. To use it, simply select the email type and provide relevant details, and the skill will provide 2-3 different subject line and preview text combinations. Each combination undergoes rigorous review to ensure clarity, accuracy, and compliance with standards such as quick comprehension and information pre-positioning, while avoiding spam signals and misleading expressions. The final output copy will help you effectively convey the core message of your emails and attract clicks from your target audience.