ZENTRADE FAQ — Référence de design web et prompt

# Prompt: ZENTRADE FAQ page

Build a single-file **FAQ page for a fictional online trading platform, ZENTRADE**. Use plain HTML, CSS and vanilla JS, with no framework and no build step. The look is dark and premium: a near-black page with a soft green glow and stepped green light bars at the top, frosted-glass navigation, a big bold headline, a glass search bar, four pill-shaped category cards and a smooth one-at-a-time accordion.