azl397985856/leetcode ? reverse-engineered prompt

Build me a clean study website for LeetCode notes and solutions, mostly in Chinese, with an English version if it’s easy. I want it to feel like a well organized book that helps people learn algorithms and data structures, not just a pile of random answers. The site should have sections for classic problems, selected solutions, daily practice, and algorithm thinking notes like binary search, linked lists, trees, dynamic programming, graphs, sliding window, heaps, union find, and backtracking.

Make it easy to browse by topic and difficulty, and let people open each problem page to read the explanation and code clearly. Include a homepage that introduces the project, a table of contents, and a simple reading experience that works well on desktop and mobile. If there are existing markdown files, turn them into the site content. Keep the design simple and useful for interview prep. If you need anything current, look up the latest docs online first.