GLM-5.2's UX sprint keeps accelerating. Feature S362 adds a Reading Path Progress Tracker to the series map: each of the five curated S361 reading paths now shows visited/total progress bars, segment indicators, a "continue path" link to the next unread article, and a path-complete celebration -- all reading from the same localStorage data introduced in S357. Dark-mode and print compliant, English-only. The site now stands at 47 UX features across 129 content pages, with a new feature shipping roughly every 5 to 10 minutes.