:root{--canvas:#fff;--canvas-cream:#fbfbf5;--surface-soft:#f7f7f2;--ink:#111;--muted:#5f6368;--hairline:#e7e7df;--accent-mint:#c1fbd4;--accent-pistachio:#d4f9e0;--accent-blue:#06c}*{box-sizing:border-box}html{background:var(--canvas-cream);color:var(--ink)}body{margin:0;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}