:root,page{--bg:#f4f1ea;--card-bg:#fff;--ink:#2b2b2b;--ink-2:#8a8578;--line:#e8e3d8;--board:#2e4b40;--board-line:#3d5e51;--chalk:#f2efe6;--chinese:#d9534f;--chinese-bg:#fdf1f0;--math:#3b6fd4;--math-bg:#eff4fd;--english:#2fa47e;--english-bg:#edf8f3;--red-pen:#c62828;--radius:0.45rem;--safe-top:env(safe-area-inset-top,0rem);--safe-bottom:env(safe-area-inset-bottom,0rem)}#app,.taro_page,body,html,page{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:.375rem}body{display:flex;justify-content:center;min-height:100vh}#app,.taro_page{background:var(--bg);box-shadow:0 0 1.5rem rgba(0,0,0,.08);max-width:10.75rem;min-height:100vh;overflow-x:hidden;position:relative;width:100%}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}