Inclusion Criteria:

• Meets the diagnostic criteria for Chronic Obstructive Pulmonary Disease (COPD) with confirmed persistent airflow limitation by spirometry.
• Hospitalized due to an acute exacerbation of COPD.
• Stable daytime arterial blood gas analysis showing PaCO₂ ≥ 50 mmHg, with hypoxemia.
• Already receiving or planned to receive long-term home non-invasive respiratory support.
• Capable of using a smartphone or tablet for video communication and has internet access.
• Willing to participate and provides written informed consent.

Exclusion Criteria:

• Concurrent severe pulmonary diseases (e.g., active tuberculosis, diffuse pulmonary fibrosis, advanced lung cancer).
• Chronic respiratory failure primarily caused by non-COPD conditions (e.g., neuromuscular disease, chest wall deformity, or severe obesity hypoventilation syndrome).
• Severe cognitive impairment or psychiatric illness that would prevent cooperation with remote management.
• Other severe systemic diseases with an expected survival of less than 1 year (e.g., advanced malignancy).
• Pregnant or lactating women.