TITLE: Nijūshi Sekki — The Twenty-Four Seasons FILE: 031-twenty-four-seasons.html === PROMPT (exact prompt used) === Design "Nijūshi Sekki — The Twenty-Four Seasons", a contemplative calendar of the traditional East Asian 24 solar terms. A large circular SVG dial divided into 24 arcs at 15° intervals of the sun's ecliptic longitude, each filled with a traditional Japanese colour suited to that part of the year (e.g. sakura-iro #fef4f4, moegi #aacf53, ruri #1e50a2, kuchiba #e0c38c, kakishibu). The current date's term is marked by a small sun computed from today's date (approximate dates are fine; say so). Selecting a term shows its romanized name, kanji and English meaning (e.g. Risshun 立春 "Beginning of Spring"), its approximate date range, a short poetic description, and a softly animated seasonal generative motif behind the text (petals, rain, fireflies, falling leaves, snow). Typography: vertical Japanese text using writing-mode for the kanji and an elegant serif for English. Palette: washi white #f8f5ee and sumi #2b2b2b, tinted by the selected term's colour. Interaction: click arcs, arrow keys to step through, a "Today" button. Responsive: the dial scales and the detail panel moves below it on phones. SHARED REQUIREMENTS (apply to every page in this 100-page collection): 1. One standalone HTML5 file. All CSS inline in