The catering standards during Zhen Huan's confinement were: food quality declined, catering services declined, and dietary restrictions were imposed.

1. Food quality declined: During the confinement period, Zhen Huan’s food quality declined significantly.

The vegetables and meat she ate were the cheapest and often stale.

In addition, the rice she ate was of poor quality and often undercooked.

This quality of food obviously failed to meet Zhen Huan's physical needs, causing her physical condition to gradually deteriorate.

2. Reduced catering services: When Zhen Huan was under house arrest, her catering services were greatly simplified.

Originally she enjoyed carefully prepared meals, but now she can only cook by herself or receive some simple catering services.

This simplified catering service left her feeling very lost and helpless.

3. Dietary restrictions: During the confinement period, Zhen Huan was also subject to dietary restrictions.

She cannot enjoy her favorite foods as freely as before and must adhere to strict dietary regulations.

These restrictions made her life more difficult and worsened her condition.

Character evaluation of Zhen Huan: 1. Zhen Huan is a smart, witty and thoughtful female character.

She was able to skillfully use her intelligence and scheming to survive and develop in the harem, and eventually became a queen and gained the emperor's trust and favor.

2. Zhen Huan is a character with a strong sense of justice and responsibility.

She constantly exposed and punished various crimes and sins in the harem, safeguarded the justice and fairness of the harem, and brought security and courage to other harem ladies and concubines.

3. Zhen Huan is a sentimental and emotional character.

She loved the emperor deeply and thought about her friends and family. She experienced many hardships and setbacks in the harem, but she always maintained her inner firmness and perseverance.

4. Zhen Huan is a character with leadership and management abilities.

She is good at handling various complex interpersonal relationships and conflicts, can effectively organize and manage teams, and help the emperor and other members of the harem solve problems and difficulties.

5. Zhen Huan is a character with profound thoughts and wisdom.

She is good at observing and analyzing things, able to think about problems from different angles and perspectives, put forward effective suggestions and solutions, and become a wise person and counselor in the harem.