求助求助

题目如图，是个凯撒密码，解出来后是

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要我按相同规则操作http:// data.kaikeba.com网页标题，
然而网页标题是中文，我就试着把汉语拼音还有url加密解密后输入（甚至是data前有无空格都试了），结果都是错误答案。求正解😘

解凯撒密码的代码如下：
a1=str(input('暗码：'))
answer=[]
words=[]
for i in range(97,123):
words.append(chr(i))

for i in a1:
if i.isalpha()==True:
if i in words[0:6]:
answer.append(words[words.index(i)+19])
else:
answer.append(words[words.index(i)-7])
else:
answer.append(i)
print('明码：')
for i in answer:
print(i,end='')