*,:before,:after,::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:#3b82f680;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.inset-0{inset:0}.bottom-0{bottom:0}.bottom-6{bottom:1.5rem}.left-0{left:0}.right-6{right:1.5rem}.z-50{z-index:50}.mx-auto{margin-left:auto;margin-right:auto}.\!mb-0{margin-bottom:0!important}.\!mr-0{margin-right:0!important}.\!mr-1{margin-right:.25rem!important}.mb-0\.5{margin-bottom:.125rem}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.mr-8{margin-right:2rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.line-clamp-2{-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.block{display:block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.h-1{height:.25rem}.h-3{height:.75rem}.min-h-0{min-height:0}.min-h-screen{min-height:100vh}.w-3{width:.75rem}.w-36{width:9rem}.w-72{width:18rem}.w-full{width:100%}.min-w-0{min-width:0}.max-w-3xl{max-width:48rem}.max-w-4xl{max-width:56rem}.max-w-5xl{max-width:64rem}.max-w-\[80\%\]{max-width:80%}.max-w-xs{max-width:20rem}.flex-1{flex:1}.shrink-0{flex-shrink:0}.cursor-pointer{cursor:pointer}.select-none{-webkit-user-select:none;user-select:none}.grid-flow-col{grid-auto-flow:column}.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}.grid-rows-7{grid-template-rows:repeat(7,minmax(0,1fr))}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-start{align-items:flex-start}.items-center{align-items:center}.justify-start{justify-content:flex-start}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-0\.5{gap:.125rem}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.space-y-1>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(.25rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.25rem * var(--tw-space-y-reverse))}.space-y-2>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.5rem * var(--tw-space-y-reverse))}.space-y-3>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(.75rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.75rem * var(--tw-space-y-reverse))}.space-y-4>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(1rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1rem * var(--tw-space-y-reverse))}.divide-y>:not([hidden])~:not([hidden]){--tw-divide-y-reverse:0;border-top-width:calc(1px * calc(1 - var(--tw-divide-y-reverse)));border-bottom-width:calc(1px * var(--tw-divide-y-reverse))}.overflow-hidden{overflow:hidden}.overflow-y-auto{overflow-y:auto}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.rounded{border-radius:.25rem}.rounded-lg{border-radius:.5rem}.rounded-sm{border-radius:.125rem}.rounded-xl{border-radius:.75rem}.border{border-width:1px}.border-2{border-width:2px}.border-t{border-top-width:1px}.border-gray-100{--tw-border-opacity:1;border-color:rgb(243 244 246/var(--tw-border-opacity,1))}.border-gray-200{--tw-border-opacity:1;border-color:rgb(229 231 235/var(--tw-border-opacity,1))}.border-gray-300{--tw-border-opacity:1;border-color:rgb(209 213 219/var(--tw-border-opacity,1))}.border-green-400{--tw-border-opacity:1;border-color:rgb(74 222 128/var(--tw-border-opacity,1))}.border-purple-200{--tw-border-opacity:1;border-color:rgb(233 213 255/var(--tw-border-opacity,1))}.border-purple-300{--tw-border-opacity:1;border-color:rgb(216 180 254/var(--tw-border-opacity,1))}.border-red-400{--tw-border-opacity:1;border-color:rgb(248 113 113/var(--tw-border-opacity,1))}.bg-gray-100{--tw-bg-opacity:1;background-color:rgb(243 244 246/var(--tw-bg-opacity,1))}.bg-gray-200{--tw-bg-opacity:1;background-color:rgb(229 231 235/var(--tw-bg-opacity,1))}.bg-gray-50{--tw-bg-opacity:1;background-color:rgb(249 250 251/var(--tw-bg-opacity,1))}.bg-gray-500{--tw-bg-opacity:1;background-color:rgb(107 114 128/var(--tw-bg-opacity,1))}.bg-green-50{--tw-bg-opacity:1;background-color:rgb(240 253 244/var(--tw-bg-opacity,1))}.bg-purple-100{--tw-bg-opacity:1;background-color:rgb(243 232 255/var(--tw-bg-opacity,1))}.bg-purple-300{--tw-bg-opacity:1;background-color:rgb(216 180 254/var(--tw-bg-opacity,1))}.bg-purple-50{--tw-bg-opacity:1;background-color:rgb(250 245 255/var(--tw-bg-opacity,1))}.bg-purple-500{--tw-bg-opacity:1;background-color:rgb(168 85 247/var(--tw-bg-opacity,1))}.bg-purple-600{--tw-bg-opacity:1;background-color:rgb(147 51 234/var(--tw-bg-opacity,1))}.bg-purple-700{--tw-bg-opacity:1;background-color:rgb(126 34 206/var(--tw-bg-opacity,1))}.bg-red-50{--tw-bg-opacity:1;background-color:rgb(254 242 242/var(--tw-bg-opacity,1))}.bg-white{--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1))}.bg-yellow-100{--tw-bg-opacity:1;background-color:rgb(254 249 195/var(--tw-bg-opacity,1))}.p-2{padding:.5rem}.p-3{padding:.75rem}.p-4{padding:1rem}.p-6{padding:1.5rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.px-8{padding-left:2rem;padding-right:2rem}.py-0\.5{padding-top:.125rem;padding-bottom:.125rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-1\.5{padding-top:.375rem;padding-bottom:.375rem}.py-2{padding-top:.5rem;padding-bottom:.5rem}.py-24{padding-top:6rem;padding-bottom:6rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-4{padding-top:1rem;padding-bottom:1rem}.py-8{padding-top:2rem;padding-bottom:2rem}.pb-3{padding-bottom:.75rem}.pt-2{padding-top:.5rem}.pt-4{padding-top:1rem}.text-center{text-align:center}.text-right{text-align:right}.font-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}.text-2xl{font-size:1.5rem;line-height:2rem}.text-4xl{font-size:2.25rem;line-height:2.5rem}.text-5xl{font-size:3rem;line-height:1}.text-lg{font-size:1.125rem;line-height:1.75rem}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xl{font-size:1.25rem;line-height:1.75rem}.text-xs{font-size:.75rem;line-height:1rem}.font-bold{font-weight:700}.font-medium{font-weight:500}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.tabular-nums{--tw-numeric-spacing:tabular-nums;font-variant-numeric:var(--tw-ordinal) var(--tw-slashed-zero) var(--tw-numeric-figure) var(--tw-numeric-spacing) var(--tw-numeric-fraction)}.leading-none{line-height:1}.tracking-wide{letter-spacing:.025em}.tracking-widest{letter-spacing:.1em}.text-gray-400{--tw-text-opacity:1;color:rgb(156 163 175/var(--tw-text-opacity,1))}.text-gray-500{--tw-text-opacity:1;color:rgb(107 114 128/var(--tw-text-opacity,1))}.text-gray-600{--tw-text-opacity:1;color:rgb(75 85 99/var(--tw-text-opacity,1))}.text-gray-700{--tw-text-opacity:1;color:rgb(55 65 81/var(--tw-text-opacity,1))}.text-gray-800{--tw-text-opacity:1;color:rgb(31 41 55/var(--tw-text-opacity,1))}.text-purple-600{--tw-text-opacity:1;color:rgb(147 51 234/var(--tw-text-opacity,1))}.text-purple-700{--tw-text-opacity:1;color:rgb(126 34 206/var(--tw-text-opacity,1))}.text-red-500{--tw-text-opacity:1;color:rgb(239 68 68/var(--tw-text-opacity,1))}.text-red-600{--tw-text-opacity:1;color:rgb(220 38 38/var(--tw-text-opacity,1))}.text-white{--tw-text-opacity:1;color:rgb(255 255 255/var(--tw-text-opacity,1))}.text-yellow-800{--tw-text-opacity:1;color:rgb(133 77 14/var(--tw-text-opacity,1))}.opacity-60{opacity:.6}.shadow{--tw-shadow:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--tw-shadow-colored:0 1px 3px 0 var(--tw-shadow-color), 0 1px 2px -1px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-lg{--tw-shadow:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--tw-shadow-colored:0 10px 15px -3px var(--tw-shadow-color), 0 4px 6px -4px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-md{--tw-shadow:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--tw-shadow-colored:0 4px 6px -1px var(--tw-shadow-color), 0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.shadow-xl{--tw-shadow:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;--tw-shadow-colored:0 20px 25px -5px var(--tw-shadow-color), 0 8px 10px -6px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000), var(--tw-ring-shadow,0 0 #0000), var(--tw-shadow)}.ring-2{--tw-ring-offset-shadow:var(--tw-ring-inset) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color);--tw-ring-shadow:var(--tw-ring-inset) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color);box-shadow:var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow,0 0 #0000)}.ring-purple-500{--tw-ring-opacity:1;--tw-ring-color:rgb(168 85 247/var(--tw-ring-opacity,1))}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.transition-all{transition-property:all;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-shadow{transition-property:box-shadow;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}.flashcard-scene{perspective:1000px}.flashcard-inner{transform-style:preserve-3d;transition:transform .45s;position:relative}.flashcard-inner.is-flipped{transform:rotateY(180deg)}.flashcard-face{backface-visibility:hidden}.flashcard-face-back{transform:rotateY(180deg)}.hover\:text-purple-600:hover{--tw-text-opacity:1;color:rgb(147 51 234/var(--tw-text-opacity,1))}.dark\:border-gray-600:is(.dark *){--tw-border-opacity:1;border-color:rgb(75 85 99/var(--tw-border-opacity,1))}.dark\:border-gray-700:is(.dark *){--tw-border-opacity:1;border-color:rgb(55 65 81/var(--tw-border-opacity,1))}.dark\:bg-gray-600:is(.dark *){--tw-bg-opacity:1;background-color:rgb(75 85 99/var(--tw-bg-opacity,1))}.dark\:bg-gray-800:is(.dark *){--tw-bg-opacity:1;background-color:rgb(31 41 55/var(--tw-bg-opacity,1))}@media (width>=768px){.md\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}}