Muslim 3D

First, the HTML tags must be kept intact. That means I can't change any tags, their attributes, or remove them. The user mentioned placeholders like [[IMG_BASE64_PLACEHOLDER]] should stay exactly as they are. So I need to check if there are any such placeholders in the text and leave them untouched.

Next, the translation has to be done paragraph by paragraph and sentence by sentence without skipping anything. That's important because even a single missing line could make the translation incomplete. Also, no extra explanations or prompts should be added. The output must be pure text with HTML tags, not in any other format like markdown or JSON.

The translation style needs to be natural in Simplified Chinese, avoiding literal translations. I have to ensure that the sentences flow smoothly and are grammatically correct. However, some technical terms might need to stay as they are, especially if they're proper nouns or specific terminology related to Islam.

After translating, I must maintain the original HTML structure, only changing the text inside the tags. No additional buttons or interactive elements should be included. Also, no mix of languages except for proper nouns. So I need to check for any English words that shouldn't be translated and make sure they're left as is.

The user also specified that only the translation should be returned, no extra content. So I have to make sure there's nothing else besides the translated text.

Now, looking at the actual content provided. It starts with "An Interactive Virtual Islamic World" which would translate to "一个互动的虚拟伊斯兰世界". Then there's a call to action for visiting the website. The next part is about the new Muslim 3D, previously Mecca 3D. I need to make sure terms like "demo version" are correctly translated as "演示版本".

The section explaining what Muslim 3D is describes it as a virtual museum or a living book. Translating that while keeping the metaphor intact is important. Phrases like "Virtual Hajj in Makkah" should be translated accurately, perhaps as "麦加的虚拟朝觐".

There's a list of features and planned updates. Each item needs to be translated carefully, ensuring technical terms like "Qibla Finder" become "朝拜方向查找器" and "Athan" remains as is since it's a specific term. Also, the part about historical sites like the Prophet's house should be accurately rendered.

The contact information and social media links are straightforward but need to ensure URLs remain unchanged. The latest updates section mentions version 1.5 with changes like added informational points and localization. Terms like "fully localized text" would be "完全本地化的文本".

I also need to check for any HTML tags that might have been missed, like the
or other elements, but in this case, the user's content doesn't seem to have them. However, I should still verify.

Finally, ensuring that there are no additional explanations or notes, just the translated text. Making sure all placeholders like [[IMG_BASE64_PLACEHOLDER]] are left as they are, and no new ones are added.

After translating each part, I'll review the entire text to ensure compliance with all the rules. Checking for any missed tags, proper nouns, and that the translation is natural and accurate. This thorough check will help avoid any issues and meet the user's requirements.