:root,.editor-styles-wrapper{--brand:#283e85;--brand-ink:#fff;--canvas:#f5f6f9;--paper:#fff;--ink:#19202e;--muted:#566071;--soft:#e9edf7;--line:color-mix(in srgb,var(--ink) 17%,transparent);--radius:6px;--site-width:1220px;--reading-width:740px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--heading-font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--focus:2px solid var(--ink);}