💰 JavaScript subscription cost calculator with real-time calculations. Plan 1-12 months ahead and visualize total costs. Demonstrates form handling, DOM manipulation, and responsive design.

A personal reference site providing clear, factual explanations and calculation-based tools focused on understanding money, costs, and everyday financial systems. Designed to prioritise clarity, objectivity, and transparency over advice or opinion.

Claude Code Skill — Claude 订阅/拼车/中转成本计算器 | Calculate real costs for Claude Pro/Max subscriptions and carpooling deals