:root{--ground:#f5f5f7;--surface:#fff;--hover:#fbfbfd;--text:#1d1d1f;--text-2:#424245;--text-3:#6e6e73;--text-4:#86868b;--hairline:rgba(0,0,0,.07);--track:#e8e8ed;--accent:#0071e3;--heat:#ff6b00;--danger:#b42318;--r-chip:6px;--r-thumb:12px;--r-sheet:16px;--r-card:18px;--r-panel:22px;--r-pill:999px;--sh-card:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);--sh-panel:0 1px 3px rgba(0,0,0,.05),0 14px 40px rgba(0,0,0,.05);--ease-spring:cubic-bezier(.32,.72,0,1);--font:-apple-system,BlinkMacSystemFont,'SF Pro Text','SF Pro Display','Helvetica Neue','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif}