<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="393" height="852" viewBox="0 0 393 852"><g id="html1"><g data-tag="head" id="head1" data-z-index="auto" data-stacking-context="true" aria-owns="script1"><g data-tag="script" id="script1" data-z-index="auto" data-stacking-context="true"/></g><g data-tag="body" id="body1" data-z-index="auto" data-stacking-context="true" role="document" aria-owns="flex1 style1"><g data-stacking-layer="rootBackgroundAndBorders"><rect width="393" height="820" x="0" y="0" fill="rgb(255, 255, 255)"/></g><g data-tag="div" id="flex1" class="flex items-center mb-8" data-z-index="auto" data-stacking-context="true" aria-owns="flex-shrink-01 ml-31"><g data-tag="div" id="flex-shrink-01" class="flex-shrink-0" data-z-index="auto" data-stacking-context="true" aria-owns="a1"><a href="/" data-tag="a" id="a1" data-z-index="auto" data-stacking-context="true" role="link" aria-owns="sr-only1 h-141"><g data-tag="span" id="sr-only1" class="sr-only" data-z-index="auto" data-stacking-context="true" mask="url(#mask-for-sr-only11)"><mask id="mask-for-sr-only11"><rect width="1" height="1" x="-1" y="-1" fill="#ffffff"/></mask><text color="rgb(2, 8, 23)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="16px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="400" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(2, 8, 23)" text-anchor="start" text-rendering="auto" unicode-bidi="normal" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(2, 8, 23)"><tspan xml:space="preserve" x="-1" y="16" textLength="64.203125" lengthAdjust="spacingAndGlyphs">Tantan Fu</tspan></text></g><g data-tag="img" id="h-141" class="h-14 object-cover rounded-full w-14" data-z-index="auto" data-stacking-context="true" role="img" aria-label="avatar" mask="url(#mask-for-h-1411)"><g data-stacking-layer="rootBackgroundAndBorders"/><g data-stacking-layer="childStackingContextsWithNegativeStackLevels"/><g data-stacking-layer="inFlowNonInlineNonPositionedDescendants"/><g data-stacking-layer="nonPositionedFloats"/><g data-stacking-layer="inFlowInlineLevelNonPositionedDescendants"/><g data-stacking-layer="childStackingContextsWithStackLevelZeroAndPositionedDescendantsWithStackLevelZero"/><g data-stacking-layer="childStackingContextsWithPositiveStackLevels"/><mask id="mask-for-h-1411"><rect width="56" height="56" x="0" y="0" fill="#ffffff"/></mask><image id="h-141-image" xlink:href="/7abcb633.png" x="0" y="0" width="56" height="56" aria-label="avatar"/></g></a></g><g data-tag="div" id="ml-31" class="ml-3" data-z-index="auto" data-stacking-context="true" aria-owns="font-medium1 flex2"><g data-tag="p" id="font-medium1" class="font-medium text-base text-gray-900" data-z-index="auto" data-stacking-context="true"><text color="rgb(26, 32, 44)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="16px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="500" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(26, 32, 44)" text-anchor="start" text-rendering="auto" unicode-bidi="isolate" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(26, 32, 44)"><tspan xml:space="preserve" x="68" y="26" textLength="64.203125" lengthAdjust="spacingAndGlyphs">Tantan Fu</tspan></text></g><g data-tag="div" id="flex2" class="flex space-x-1 text-gray-500 text-sm" data-z-index="auto" data-stacking-context="true"><text color="rgb(160, 174, 192)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="14px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="400" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(160, 174, 192)" text-anchor="start" text-rendering="auto" unicode-bidi="isolate" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(160, 174, 192)"><tspan xml:space="preserve" x="68" y="47" textLength="71.171875" lengthAdjust="spacingAndGlyphs">Jan 03, 2024</tspan></text></g></g></g><g data-tag="style" id="style1" data-z-index="auto" data-stacking-context="true"/></g></g></svg>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="834" height="1210" viewBox="0 0 834 1210"><g id="html1"><g data-tag="head" id="head1" data-z-index="auto" data-stacking-context="true" aria-owns="script1"><g data-tag="script" id="script1" data-z-index="auto" data-stacking-context="true"/></g><g data-tag="body" id="body1" data-z-index="auto" data-stacking-context="true" role="document" aria-owns="flex1 style1"><g data-stacking-layer="rootBackgroundAndBorders"><rect width="834" height="1178" x="0" y="0" fill="rgb(255, 255, 255)"/></g><g data-tag="div" id="flex1" class="flex items-center mb-8" data-z-index="auto" data-stacking-context="true" aria-owns="flex-shrink-01 ml-31"><g data-tag="div" id="flex-shrink-01" class="flex-shrink-0" data-z-index="auto" data-stacking-context="true" aria-owns="a1"><a href="/" data-tag="a" id="a1" data-z-index="auto" data-stacking-context="true" role="link" aria-owns="sr-only1 h-141"><g data-tag="span" id="sr-only1" class="sr-only" data-z-index="auto" data-stacking-context="true" mask="url(#mask-for-sr-only11)"><mask id="mask-for-sr-only11"><rect width="1" height="1" x="-1" y="-1" fill="#ffffff"/></mask><text color="rgb(2, 8, 23)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="16px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="400" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(2, 8, 23)" text-anchor="start" text-rendering="auto" unicode-bidi="normal" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(2, 8, 23)"><tspan xml:space="preserve" x="-1" y="16" textLength="64.203125" lengthAdjust="spacingAndGlyphs">Tantan Fu</tspan></text></g><g data-tag="img" id="h-141" class="h-14 object-cover rounded-full w-14" data-z-index="auto" data-stacking-context="true" role="img" aria-label="avatar" mask="url(#mask-for-h-1411)"><g data-stacking-layer="rootBackgroundAndBorders"/><g data-stacking-layer="childStackingContextsWithNegativeStackLevels"/><g data-stacking-layer="inFlowNonInlineNonPositionedDescendants"/><g data-stacking-layer="nonPositionedFloats"/><g data-stacking-layer="inFlowInlineLevelNonPositionedDescendants"/><g data-stacking-layer="childStackingContextsWithStackLevelZeroAndPositionedDescendantsWithStackLevelZero"/><g data-stacking-layer="childStackingContextsWithPositiveStackLevels"/><mask id="mask-for-h-1411"><rect width="56" height="56" x="0" y="0" fill="#ffffff"/></mask><image id="h-141-image" xlink:href="/7abcb633.png" x="0" y="0" width="56" height="56" aria-label="avatar"/></g></a></g><g data-tag="div" id="ml-31" class="ml-3" data-z-index="auto" data-stacking-context="true" aria-owns="font-medium1 flex2"><g data-tag="p" id="font-medium1" class="font-medium text-base text-gray-900" data-z-index="auto" data-stacking-context="true"><text color="rgb(26, 32, 44)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="16px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="500" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(26, 32, 44)" text-anchor="start" text-rendering="auto" unicode-bidi="isolate" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(26, 32, 44)"><tspan xml:space="preserve" x="68" y="26" textLength="64.203125" lengthAdjust="spacingAndGlyphs">Tantan Fu</tspan></text></g><g data-tag="div" id="flex2" class="flex space-x-1 text-gray-500 text-sm" data-z-index="auto" data-stacking-context="true"><text color="rgb(160, 174, 192)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="14px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="400" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(160, 174, 192)" text-anchor="start" text-rendering="auto" unicode-bidi="isolate" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(160, 174, 192)"><tspan xml:space="preserve" x="68" y="47" textLength="71.171875" lengthAdjust="spacingAndGlyphs">Jan 03, 2024</tspan></text></g></g></g><g data-tag="style" id="style1" data-z-index="auto" data-stacking-context="true"/></g></g></svg>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1440" height="900" viewBox="0 0 1440 900"><g id="html1"><g data-tag="head" id="head1" data-z-index="auto" data-stacking-context="true" aria-owns="script1"><g data-tag="script" id="script1" data-z-index="auto" data-stacking-context="true"/></g><g data-tag="body" id="body1" data-z-index="auto" data-stacking-context="true" role="document" aria-owns="flex1 style1"><g data-stacking-layer="rootBackgroundAndBorders"><rect width="1440" height="868" x="0" y="0" fill="rgb(255, 255, 255)"/></g><g data-tag="div" id="flex1" class="flex items-center mb-8" data-z-index="auto" data-stacking-context="true" aria-owns="flex-shrink-01 ml-31"><g data-tag="div" id="flex-shrink-01" class="flex-shrink-0" data-z-index="auto" data-stacking-context="true" aria-owns="a1"><a href="/" data-tag="a" id="a1" data-z-index="auto" data-stacking-context="true" role="link" aria-owns="sr-only1 h-141"><g data-tag="span" id="sr-only1" class="sr-only" data-z-index="auto" data-stacking-context="true" mask="url(#mask-for-sr-only11)"><mask id="mask-for-sr-only11"><rect width="1" height="1" x="-1" y="-1" fill="#ffffff"/></mask><text color="rgb(2, 8, 23)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="16px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="400" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(2, 8, 23)" text-anchor="start" text-rendering="auto" unicode-bidi="normal" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(2, 8, 23)"><tspan xml:space="preserve" x="-1" y="16" textLength="64.203125" lengthAdjust="spacingAndGlyphs">Tantan Fu</tspan></text></g><g data-tag="img" id="h-141" class="h-14 object-cover rounded-full w-14" data-z-index="auto" data-stacking-context="true" role="img" aria-label="avatar" mask="url(#mask-for-h-1411)"><g data-stacking-layer="rootBackgroundAndBorders"/><g data-stacking-layer="childStackingContextsWithNegativeStackLevels"/><g data-stacking-layer="inFlowNonInlineNonPositionedDescendants"/><g data-stacking-layer="nonPositionedFloats"/><g data-stacking-layer="inFlowInlineLevelNonPositionedDescendants"/><g data-stacking-layer="childStackingContextsWithStackLevelZeroAndPositionedDescendantsWithStackLevelZero"/><g data-stacking-layer="childStackingContextsWithPositiveStackLevels"/><mask id="mask-for-h-1411"><rect width="56" height="56" x="0" y="0" fill="#ffffff"/></mask><image id="h-141-image" xlink:href="/7abcb633.png" x="0" y="0" width="56" height="56" aria-label="avatar"/></g></a></g><g data-tag="div" id="ml-31" class="ml-3" data-z-index="auto" data-stacking-context="true" aria-owns="font-medium1 flex2"><g data-tag="p" id="font-medium1" class="font-medium text-base text-gray-900" data-z-index="auto" data-stacking-context="true"><text color="rgb(26, 32, 44)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="16px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="500" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(26, 32, 44)" text-anchor="start" text-rendering="auto" unicode-bidi="isolate" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(26, 32, 44)"><tspan xml:space="preserve" x="68" y="26" textLength="64.203125" lengthAdjust="spacingAndGlyphs">Tantan Fu</tspan></text></g><g data-tag="div" id="flex2" class="flex space-x-1 text-gray-500 text-sm" data-z-index="auto" data-stacking-context="true"><text color="rgb(160, 174, 192)" dominant-baseline="text-after-edge" font-family="&quot;Times New Roman&quot;" font-size="14px" font-size-adjust="none" font-stretch="100%" font-style="normal" font-variant="normal" font-weight="400" direction="ltr" letter-spacing="normal" text-decoration="none solid rgb(160, 174, 192)" text-anchor="start" text-rendering="auto" unicode-bidi="isolate" word-spacing="0px" writing-mode="horizontal-tb" user-select="auto" fill="rgb(160, 174, 192)"><tspan xml:space="preserve" x="68" y="47" textLength="71.171875" lengthAdjust="spacingAndGlyphs">Jan 03, 2024</tspan></text></g></g></g><g data-tag="style" id="style1" data-z-index="auto" data-stacking-context="true"/></g></g></svg>
<body><div class="flex items-center mb-8"><div class="flex-shrink-0"><a href="/"><span class="sr-only">Tantan Fu</span><img alt="avatar" class="h-14 object-cover rounded-full w-14" src="http://localhost:3000/7abcb633.png"></a></div><div class="ml-3"><p class="font-medium text-base text-gray-900">Tantan Fu</p><div class="flex space-x-1 text-gray-500 text-sm">Jan 03, 2024</div></div></div></body>

<style>

*,:after,:before{box-sizing:border-box;border:0 solid #edf2f7}:after,:before{}body{margin:0;line-height:inherit}a{color:inherit;text-decoration:inherit}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}p{margin:0}img{display:block;vertical-align:middle}img{max-width:100%;height:auto}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-date-and-time-value{min-height:1.5em;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit,::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-meridiem-field,::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-minute-field,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-second-field,::-webkit-datetime-edit-year-field{padding-top:0;padding-bottom:0}:root{--background:0 0% 100%;--foreground:222.2 84% 4.9%;--border:214.3 31.8% 91.4%}*{border-color:hsl(var(--border))}body{background-color:hsl(var(--background));color:hsl(var(--foreground))}*,:after,:before{}::backdrop{}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.mb-8{margin-bottom:2rem}.ml-3{margin-left:.75rem}.flex{display:flex}.h-14{height:3.5rem}.w-14{width:3.5rem}.flex-shrink-0{flex-shrink:0}@keyframes pulse{50%{opacity:.5}}@keyframes spin{to{transform:rotate(1turn)}}.items-center{align-items:center}.space-x-1>:not([hidden])~:not([hidden]){--tw-space-x-reverse:0;margin-right:calc(.25rem * var(--tw-space-x-reverse));margin-left:calc(.25rem * calc(1 - var(--tw-space-x-reverse)))}.rounded-full{border-radius:9999px}.object-cover{-o-object-fit:cover;object-fit:cover}.text-base{font-size:1rem;line-height:1.5rem}.text-sm{font-size:.875rem;line-height:1.25rem}.font-medium{font-weight:500}.text-gray-500{--tw-text-opacity:1;color:rgb(160 174 192/var(--tw-text-opacity))}.text-gray-900{--tw-text-opacity:1;color:rgb(26 32 44/var(--tw-text-opacity))}@keyframes enter{0%{opacity:var(--tw-enter-opacity,1);transform:translate3d(var(--tw-enter-translate-x,0),var(--tw-enter-translate-y,0),0) scale3d(var(--tw-enter-scale,1),var(--tw-enter-scale,1),var(--tw-enter-scale,1)) rotate(var(--tw-enter-rotate,0))}}@keyframes exit{to{opacity:var(--tw-exit-opacity,1);transform:translate3d(var(--tw-exit-translate-x,0),var(--tw-exit-translate-y,0),0) scale3d(var(--tw-exit-scale,1),var(--tw-exit-scale,1),var(--tw-exit-scale,1)) rotate(var(--tw-exit-rotate,0))}}


@font-face{font-family:KaTeX_AMS;src:url(https://blog.futantan.com/_next/static/media/KaTeX_AMS-Regular.516433e5.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_AMS-Regular.f64ecdbf.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_AMS-Regular.9d285f68.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Caligraphic;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Caligraphic-Bold.fb81d5b5.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Caligraphic-Bold.04e70af6.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Caligraphic-Bold.1fca38a7.ttf) format("truetype");font-weight:700;font-style:normal}@font-face{font-family:KaTeX_Caligraphic;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Caligraphic-Regular.17f7febe.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Caligraphic-Regular.4b2ca345.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Caligraphic-Regular.6502b55c.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Fraktur;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Fraktur-Bold.60fdb603.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Fraktur-Bold.1fed70f6.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Fraktur-Bold.c6d05379.ttf) format("truetype");font-weight:700;font-style:normal}@font-face{font-family:KaTeX_Fraktur;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Fraktur-Regular.ec384e21.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Fraktur-Regular.c00a259e.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Fraktur-Regular.8d036fe9.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Main;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Bold.61cd970a.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Bold.5302ed64.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Bold.1c4b4a74.ttf) format("truetype");font-weight:700;font-style:normal}@font-face{font-family:KaTeX_Main;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Main-BoldItalic.f6c81a0f.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-BoldItalic.b51d05ab.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-BoldItalic.c3555ae4.ttf) format("truetype");font-weight:700;font-style:italic}@font-face{font-family:KaTeX_Main;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Italic.253cf3d4.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Italic.fec8ed3f.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Italic.8713d91a.ttf) format("truetype");font-weight:400;font-style:italic}@font-face{font-family:KaTeX_Main;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Regular.9f745f13.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Regular.6ad11a53.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Main-Regular.05afe366.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Math;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Math-Italic.3245b50a.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Math-Italic.bba5f350.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Math-Italic.3302da99.ttf) format("truetype");font-weight:400;font-style:italic}@font-face{font-family:KaTeX_SansSerif;src:url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Bold.1fca6c28.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Bold.178270e0.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Bold.6282ff78.ttf) format("truetype");font-weight:700;font-style:normal}@font-face{font-family:KaTeX_SansSerif;src:url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Italic.01562394.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Italic.19682613.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Italic.cbd1bae7.ttf) format("truetype");font-weight:400;font-style:italic}@font-face{font-family:KaTeX_SansSerif;src:url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Regular.4e1ded08.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Regular.86af5a43.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_SansSerif-Regular.59aac51e.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Script;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Script-Regular.4ca08866.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Script-Regular.ba27783b.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Script-Regular.286e24e9.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Size1;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Size1-Regular.7eecf8d7.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size1-Regular.9c67f3ba.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size1-Regular.1560fae3.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Size2;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Size2-Regular.a8dedfdc.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size2-Regular.b5fc8de0.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size2-Regular.e06f9323.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Size3;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Size3-Regular.579ff123.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size3-Regular.5858367f.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size3-Regular.420a8354.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Size4;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Size4-Regular.043f846e.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size4-Regular.f398a979.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Size4-Regular.0106e4e3.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:KaTeX_Typewriter;src:url(https://blog.futantan.com/_next/static/media/KaTeX_Typewriter-Regular.f76cd502.woff2) format("woff2"),url(https://blog.futantan.com/_next/static/media/KaTeX_Typewriter-Regular.29257d76.woff) format("woff"),url(https://blog.futantan.com/_next/static/media/KaTeX_Typewriter-Regular.d3ad1c5f.ttf) format("truetype");font-weight:400;font-style:normal}:root{}@keyframes spinner{to{transform:rotate(1turn)}}@keyframes slideDownAndFade{0%{opacity:0;transform:translateY(-2px)}to{opacity:1;transform:translateY(0)}}


</style>