@font-face {
    font-family: 'Google Sans';
    src: local('Google Sans'), 
    local('GoogleSans-Regular'),
    url('https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxK.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Google Sans';
    src: local('Google Sans Medium'),
    local('GoogleSans-Medium');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
    font-family: 'Google Sans';
    src: local('Google Sans Bold'),
    local('GoogleSans-Bold');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
    --font-primary: "Google Sans", "Roboto", system-ui, -apple-system, sans-serif;
}

html, body {
    font-family: var(--font-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.mdui-typo, .mdui-typo-title, .mdui-btn, .mdui-tab, 
.mdui-textfield-input, .mdui-list-item-content, 
.mdui-card-primary-title, .mdui-card-primary-subtitle,
.mdui-dialog-title, .mdui-snackbar-text {
    font-family: var(--font-primary) !important;
}

:lang(zh), :lang(zh-CN), :lang(zh-TW), :lang(zh-HK) {
    font-weight: 400;
    letter-spacing: 0.02em;
}