09-28Qwen3-Embedding与Qwen3-Reranker模型解析:传统BERT<[bos_never_used_51bce0c785ca2f68081bfa7d91973934]>策略与新一代嵌入检索架构[bos_never_used_51bce0c785ca2f68081bfa7d91973934]>