A 22-year-old woman presents with painless cervical lymphadenopathy, night sweats, and generalized pruritus. An enlarged cervical lymph node is removed for diagnosis. On cut surface, it shows broads bands of fibrosis. Histologically, the affected lymph node contains a mixture of cells, including lymphocytes, histiocytes, eosinophils, plasma cells, and scattered large cells with prominent nucleoli. Which of the following is the most likely condition?