:root{--background:#eef1f3;--foreground:#171717;--surface:#fff;--surface-muted:#f7f9fb;--border:#dfe4e8;--text-muted:#667085;--accent:#111;--accent-soft:#e7f5d4;--radius:8px}*{box-sizing:border-box}body{background:var(--background);color:var(--foreground);margin:0;font-family:Inter,MiSans,PingFang SC,Microsoft YaHei,system-ui,-apple-system,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}