Per Google PageSpeed's recommendation, I inlined much of my CSS. Previously, I had minified all of my CSS through W3 Total Cache, but now I inlined much of my CSS, plus all of the CSS that controls Google Fonts.
Now Google Fonts aren't appearing on mobile devices, but they do appear on desktops. Any reason why this is the case? The mobile screen cap here shows the fonts not loading.
<style>@font-face{font-family:'Pathway Gothic One';font-style:normal;font-weight:400;src:local('Pathway Gothic One'),local(PathwayGothicOne-Regular),url(https://fonts.gstatic.com/s/pathwaygothicone/v4/Lqv9ztoTUV8Q0FmQZzPqaA6LSHyyJAN5JIFgwWnj0Az3rGVtsTkPsbDajuO5ueQw.woff2) format("woff2");unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Pathway Gothic One';font-style:normal;font-weight:400;src:local('Pathway Gothic One'),local(PathwayGothicOne-Regular),url(https://fonts.gstatic.com/s/pathwaygothicone/v4/Lqv9ztoTUV8Q0FmQZzPqaHT0-GP0evTJPrdxn7U7ioo.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2212,U+2215,U+E0FF,U+EFFD,U+F000}@font-face{font-family:'Quicksand';font-style:normal;font-weight:400;src:local('Quicksand Regular'),local(Quicksand-Regular),url(https://fonts.gstatic.com/s/quicksand/v5/sKd0EMYPAh5PYCRKSryvW5Bw1xU1rKptJj_0jans920.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2212,U+2215,U+E0FF,U+EFFD,U+F000}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsIPxuqWfQuZGbz5Rz4Zu1gk.woff2) format("woff2");unicode-range:U+0460-052F,U+20B4,U+2DE0-2DFF,U+A640-A69F}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsENRpQQ4njX3CLaCqI4awdk.woff2) format("woff2");unicode-range:U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsET2KMEyTWEzJqg9U8VS8XM.woff2) format("woff2");unicode-range:U+1F00-1FFF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsMH5J2QbmuFthYTFOnnSRco.woff2) format("woff2");unicode-range:U+0370-03FF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsDcCYxVKuOcslAgPRMZ8RJE.woff2) format("woff2");unicode-range:U+0102-0103,U+1EA0-1EF1,U+20AB}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsNKDSU5nPdoBdru70FiVyb0.woff2) format("woff2");unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:400;src:local('Roboto Condensed'),local(RobotoCondensed-Regular),url(https://fonts.gstatic.com/s/robotocondensed/v13/Zd2E9abXLFGSr9G3YK2MsH4vxAoi6d67T_UKWi0EoHQ.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2212,U+2215,U+E0FF,U+EFFD,U+F000}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nBYyuMfI6pbvLqniwcbLofP2Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+0460-052F,U+20B4,U+2DE0-2DFF,U+A640-A69F}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nIT75Viso9fCesWUO0IzDUX2Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nL8EBb1YR1F8PhofwHtObrz2Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+1F00-1FFF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nAro84VToOve-uw23YSmBS72Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+0370-03FF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nACS0ZgDg4kY8EFPTGlvyHP2Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+0102-0103,U+1EA0-1EF1,U+20AB}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nGPMCwzADhgEiQ8LZ-01G1L2Ot9t5h1GRSTIE78Whtoh.woff2) format("woff2");unicode-range:U+0100-024F,U+1E00-1EFF,U+20A0-20AB,U+20AD-20CF,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:'Roboto Condensed';font-style:normal;font-weight:700;src:local('Roboto Condensed Bold'),local(RobotoCondensed-Bold),url(https://fonts.gstatic.com/s/robotocondensed/v13/b9QBgL0iMZfDSpmcXcE8nPX2or14QGUHgbhSBV1Go0E.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2212,U+2215,U+E0FF,U+EFFD,U+F000}</style>
You only have definitions for woff2. This probably will not only not work on mobile but as well not in many other Desktop browsers. For example, Internet Explorer requires eot, Safari requires ttf. I think only Chrome uses woff2. Depending on which mobile browser you use you need a different font format. I believe Safari on IOS even uses svg!
I think what you did is, you opened the CSS file Google Fonts gave you and simply copied the content. The problem is, this CSS depends on the User Agent. It has different content with the correct font format for the Browser which requested.
You could use a tool like http://localfont.com to generate the correct CSS with all font formats. They have different formats for downloading fonts as well only generating CSS for inline use.