html,body{margin:0;background:#f5f7fb;color:#12304f;font-family:-apple-system,PingFang SC,Microsoft YaHei,sans-serif}.stage{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;text-align:center}h1{font-size:40px;margin:0;letter-spacing:4px}.sub{margin:0;color:#47658a}.health{margin-top:24px;padding:8px 16px;border-radius:999px;background:#e6edf7;font-size:14px}.hint{font-size:12px;color:#7d90a8}