Clinical Study of Compound Ciwujia Granules in the Treatment of Depression

The purpose of this clinical trial is to evaluate the therapeutic efficacy and safety of Compound Ciwujia Granules in treating depression disorder (heart-spleen deficiency syndrome). The study primarily aims to address the following key questions: * Can Compound Ciwujia Granules effectively alleviate depressive symptoms in patients with heart-spleen deficiency syndrome? * What adverse reactions might participants experience while taking Compound Ciwujia Granules? Researchers will compare Compound Ciwujia Granules to a placebo (a look-alike substance that contains no drug) to see if Compound Ciwujia Granules works to treat depression disorder. Participants are required to complete the following procedures: 1. Take Compound Ciwujia Granules or placebo twice daily for 8 weeks; 2. Continue concomitant SSRIs throughout the treatment period; 3. Return to the hospital for scheduled assessments at Week 4 and Week 8; 4. Complete a 4-week follow-up period after the 8-week treatment phase.