@import url("https://cdn.jsdelivr.net/npm/lxgw-wenkai-webfont@1.7.0/lxgwwenkai-regular.css");@import url("https://unpkg.com/lxgw-wenkai-webfont@1.7.0/lxgwwenkai-regular.css");:root{--font-ui-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Heiti SC","STHeiti",Arial,sans-serif;--font-ui-serif:"Songti SC","STSong","SimSun","Noto Serif SC",serif;--font-ui-kaiti:"LXGW WenKai","LXGW Wenkai","Kaiti SC","STKaiti","KaiTi","Noto Serif SC",serif}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{text-rendering:optimizeLegibility;font-kerning:normal;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button,input,select,textarea{font:inherit}:where(.operator,.result-bracket,.sudoku-cell,.math-symbol,.operator-symbol){font-family:Noto Sans,Segoe UI,Helvetica Neue,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Arial,sans-serif;font-variant-ligatures:none;font-variant-numeric:lining-nums tabular-nums}:where(.tracing-wrapper .comparison,.tracing-wrapper .comparison *){font-family:inherit!important;font-size:inherit!important;line-height:inherit!important;font-weight:inherit!important}.operator-symbol{display:inline-block;line-height:1;font-weight:600;font-family:Times New Roman,Cambria Math,STIX Two Math,Segoe UI Symbol,Apple Symbols,Arial Unicode MS,serif;transform:translateY(-.02em)}:where(.tracing-wrapper,.math-question,.math-problem){font-variant-ligatures:none;font-kerning:normal}:where(.header-info h1),:where(.menu ul li,.menu ul li>a,.menu ul li ul li,.menu ul li ul li>a,header nav a){font-family:var(--font-ui-sans)!important}:where(.header-info p){font-family:var(--font-ui-serif)!important}:where(.header-info p.inline){font-family:var(--font-ui-kaiti)!important}:where(.header-info p.block){font-family:var(--font-ui-sans)!important}html.cn-page :where(.tracing-number,.char-container,.tracing-table td,.tracing-table td *){font-family:LXGW WenKai,LXGW Wenkai,Kaiti SC,STKaiti,KaiTi,楷体,BiauKai,serif!important;font-style:normal!important;font-weight:400!important}