/*
 * tailwind-utilities.css
 * 方案 A — 替代 Tailwind CDN 的最小化 utility 样式
 * 仅包含项目 HTML 文件中实际用到的 Tailwind class
 * 体积: ~6KB  vs  CDN 版本 3MB+
 */

/* === Display === */
.block{display:block}.inline-block{display:inline-block}
.inline-flex{display:inline-flex}.flex{display:flex}
.grid{display:grid}.hidden{display:none}

/* === Position === */
.relative{position:relative}.absolute{position:absolute}
.fixed{position:fixed}.sticky{position:sticky}
.inset-0{top:0;right:0;bottom:0;left:0}
.top-0{top:0}.top-4{top:1rem}.bottom-0{bottom:0}
.left-0{left:0}.right-0{right:0}.left-1\/2{left:50%}
.-top-4{top:-1rem}.-bottom-4{bottom:-1rem}
.-left-4{left:-1rem}.-right-4{right:-1rem}
.-inset-8{top:-2rem;right:-2rem;bottom:-2rem;left:-2rem}
.z-10{z-index:10}.z-50{z-index:50}
.overflow-hidden{overflow:hidden}.overflow-x-hidden{overflow-x:hidden}

/* === Flexbox === */
.flex-col{flex-direction:column}.flex-1{flex:1 1 0%}
.flex-shrink-0{flex-shrink:0}
.items-center{align-items:center}.items-end{align-items:flex-end}
.justify-center{justify-content:center}
.justify-between{justify-content:space-between}
.justify-end{justify-content:flex-end}

/* === Gap / Space === */
.gap-1{gap:.25rem}.gap-1\.5{gap:.375rem}.gap-2{gap:.5rem}
.gap-2\.5{gap:.625rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}
.gap-6{gap:1.5rem}.gap-8{gap:2rem}.gap-12{gap:3rem}
.space-y-2>*+*{margin-top:.5rem}
.grid-cols-1{grid-template-columns:repeat(1,minmax(0,1fr))}

/* === Sizing === */
.w-full{width:100%}.w-auto{width:auto}.w-2{width:.5rem}
.w-8{width:2rem}.w-96{width:24rem}
.w-\[95\%\]{width:95%}.w-\[90\%\]{width:90%}
.w-\[500px\]{width:500px}.w-\[800px\]{width:800px}
.h-auto{height:auto}.h-full{height:100%}.h-px{height:1px}
.h-2{height:.5rem}.h-6{height:1.5rem}.h-8{height:2rem}
.h-96{height:24rem}.h-\[300px\]{height:300px}.h-\[800px\]{height:800px}
.min-h-screen{min-height:100vh}
.max-w-md{max-width:28rem}.max-w-xl{max-width:36rem}
.max-w-2xl{max-width:42rem}.max-w-3xl{max-width:48rem}
.max-w-5xl{max-width:64rem}.max-w-6xl{max-width:72rem}
.max-w-7xl{max-width:80rem}.min-w-\[200px\]{min-width:200px}

/* === Padding === */
.p-1{padding:.25rem}.p-2{padding:.5rem}.p-2\.5{padding:.625rem}
.px-1\.5{padding-left:.375rem;padding-right:.375rem}
.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-6{padding-left:1.5rem;padding-right:1.5rem}
.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-2\.5{padding-top:.625rem;padding-bottom:.625rem}
.py-3{padding-top:.75rem;padding-bottom:.75rem}
.py-4{padding-top:1rem;padding-bottom:1rem}
.py-6{padding-top:1.5rem;padding-bottom:1.5rem}
.py-16{padding-top:4rem;padding-bottom:4rem}
.py-20{padding-top:5rem;padding-bottom:5rem}
.py-24{padding-top:6rem;padding-bottom:6rem}
.py-32{padding-top:8rem;padding-bottom:8rem}
.pt-32{padding-top:8rem}.pb-6{padding-bottom:1.5rem}
.pb-20{padding-bottom:5rem}

/* === Margin === */
.mx-auto{margin-left:auto;margin-right:auto}
.mb-1{margin-bottom:.25rem}.mb-1\.5{margin-bottom:.375rem}
.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}.mb-10{margin-bottom:2.5rem}
.mb-12{margin-bottom:3rem}.mb-16{margin-bottom:4rem}
.mb-0\.5{margin-bottom:.125rem}.ml-4{margin-left:1rem}
.-translate-x-1\/2{transform:translateX(-50%)}
.-translate-y-1\/2{transform:translateY(-50%)}

/* === Typography === */
.font-sans{font-family:ui-sans-serif,system-ui,sans-serif}
.font-mono{font-family:ui-monospace,monospace}
.font-light{font-weight:300}.font-medium{font-weight:500}
.font-semibold{font-weight:600}.font-bold{font-weight:700}
.text-\[9px\]{font-size:9px;line-height:1.3}
.text-\[10px\]{font-size:10px;line-height:1.4}
.text-xs{font-size:.75rem;line-height:1rem}
.text-sm{font-size:.875rem;line-height:1.25rem}
.text-base{font-size:1rem;line-height:1.5rem}
.text-lg{font-size:1.125rem;line-height:1.75rem}
.text-xl{font-size:1.25rem;line-height:1.75rem}
.text-2xl{font-size:1.5rem;line-height:2rem}
.text-3xl{font-size:1.875rem;line-height:2.25rem}
.text-4xl{font-size:2.25rem;line-height:2.5rem}
.text-5xl{font-size:3rem;line-height:1}
.text-6xl{font-size:3.75rem;line-height:1}
.text-7xl{font-size:4.5rem;line-height:1}
.text-center{text-align:center}.text-left{text-align:left}
.tracking-tight{letter-spacing:-.025em}
.tracking-wider{letter-spacing:.05em}
.leading-relaxed{line-height:1.625}
.leading-\[1\.05\]{line-height:1.05}
.uppercase{text-transform:uppercase}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.antialiased{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
.whitespace-nowrap{white-space:nowrap}
.bg-clip-text{-webkit-background-clip:text;background-clip:text}
.text-transparent{color:transparent}

/* === Text Colors === */
.text-white{color:#fff}.text-black{color:#000}
.text-white\/20{color:rgba(255,255,255,.20)}
.text-white\/30{color:rgba(255,255,255,.30)}
.text-white\/40{color:rgba(255,255,255,.40)}
.text-white\/50{color:rgba(255,255,255,.50)}
.text-white\/60{color:rgba(255,255,255,.60)}
.text-white\/80{color:rgba(255,255,255,.80)}
.text-white\/90{color:rgba(255,255,255,.90)}
.text-black\/50{color:rgba(0,0,0,.50)}
.text-\[\#34b27b\]{color:#34b27b}

/* === Background Colors === */
.bg-black{background-color:#000}.bg-white{background-color:#fff}
.bg-\[\#111\]{background-color:#111}
.bg-\[\#0a0a0a\]{background-color:#0a0a0a}
.bg-\[\#E5E5E5\]{background-color:#E5E5E5}
.bg-\[\#34b27b\]{background-color:#34b27b}
.bg-white\/5{background-color:rgba(255,255,255,.05)}
.bg-white\/10{background-color:rgba(255,255,255,.10)}
.bg-white\/\[0\.02\]{background-color:rgba(255,255,255,.02)}
.bg-black\/40{background-color:rgba(0,0,0,.40)}
.bg-black\/50{background-color:rgba(0,0,0,.50)}
.bg-black\/60{background-color:rgba(0,0,0,.60)}
.bg-\[\#34b27b\]\/5{background-color:rgba(52,178,123,.05)}
.bg-\[\#34b27b\]\/8{background-color:rgba(52,178,123,.08)}
.bg-\[\#34b27b\]\/10{background-color:rgba(52,178,123,.10)}
.bg-\[\#34b27b\]\/15{background-color:rgba(52,178,123,.15)}
.bg-\[\#34b27b\]\/30{background-color:rgba(52,178,123,.30)}

/* === Gradients === */
.bg-gradient-to-r{background-image:linear-gradient(to right,var(--tw-gradient-stops))}
.bg-gradient-to-t{background-image:linear-gradient(to top,var(--tw-gradient-stops))}
.bg-gradient-to-br{background-image:linear-gradient(to bottom right,var(--tw-gradient-stops))}
.from-black{--tw-gradient-from:#000;--tw-gradient-stops:var(--tw-gradient-from),var(--tw-gradient-to,transparent)}
.from-transparent{--tw-gradient-from:transparent;--tw-gradient-stops:var(--tw-gradient-from),var(--tw-gradient-to,transparent)}
.from-\[\#34b27b\]{--tw-gradient-from:#34b27b;--tw-gradient-stops:var(--tw-gradient-from),var(--tw-gradient-to,transparent)}
.via-\[\#08130c\]{--tw-gradient-stops:var(--tw-gradient-from),#08130c,var(--tw-gradient-to,transparent)}
.via-\[\#2dd4bf\]{--tw-gradient-stops:var(--tw-gradient-from),#2dd4bf,var(--tw-gradient-to,transparent)}
.via-white\/10{--tw-gradient-stops:var(--tw-gradient-from),rgba(255,255,255,.10),var(--tw-gradient-to,transparent)}
.to-black{--tw-gradient-to:#000}
.to-transparent{--tw-gradient-to:transparent}
.to-\[\#34b27b\]{--tw-gradient-to:#34b27b}
.bg-\[length\:200\%_auto\]{background-size:200% auto}

/* === Border === */
.border{border-width:1px;border-style:solid}
.border-t{border-top-width:1px;border-top-style:solid}
.border-b{border-bottom-width:1px;border-bottom-style:solid}
.border-l-2{border-left-width:2px;border-left-style:solid}
.border-r-2{border-right-width:2px;border-right-style:solid}
.border-t-2{border-top-width:2px;border-top-style:solid}
.border-b-2{border-bottom-width:2px;border-bottom-style:solid}
.border-white\/5{border-color:rgba(255,255,255,.05)}
.border-white\/10{border-color:rgba(255,255,255,.10)}
.border-white\/20{border-color:rgba(255,255,255,.20)}
.border-\[\#34b27b\]\/20{border-color:rgba(52,178,123,.20)}
.border-\[\#34b27b\]\/30{border-color:rgba(52,178,123,.30)}
.border-\[\#34b27b\]\/50{border-color:rgba(52,178,123,.50)}

/* === Border Radius === */
.rounded{border-radius:.25rem}
.rounded-md{border-radius:.375rem}
.rounded-lg{border-radius:.5rem}
.rounded-xl{border-radius:.75rem}
.rounded-2xl{border-radius:1rem}
.rounded-3xl{border-radius:1.5rem}
.rounded-full{border-radius:9999px}
.rounded-tl-lg{border-top-left-radius:.5rem}
.rounded-tr-lg{border-top-right-radius:.5rem}
.rounded-bl-lg{border-bottom-left-radius:.5rem}
.rounded-br-lg{border-bottom-right-radius:.5rem}

/* === Effects === */
.shadow-lg{box-shadow:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1)}
.shadow-xl{box-shadow:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1)}
.shadow-\[0_8px_32px_rgba\(0\,0\,0\,0\.4\)\]{box-shadow:0 8px 32px rgba(0,0,0,.4)}
.shadow-\[0_20px_80px_-20px_rgba\(52\,178\,123\,0\.5\)\]{box-shadow:0 20px 80px -20px rgba(52,178,123,.5)}
.blur-sm{filter:blur(4px)}
.blur-3xl{filter:blur(64px)}
.blur-\[100px\]{filter:blur(100px)}
.blur-\[120px\]{filter:blur(120px)}
.opacity-0{opacity:0}.opacity-15{opacity:.15}
.opacity-50{opacity:.5}.opacity-75{opacity:.75}
.opacity-90{opacity:.9}.opacity-100{opacity:1}
.backdrop-blur-md{backdrop-filter:blur(12px)}
.backdrop-blur-xl{backdrop-filter:blur(24px)}
.pointer-events-none{pointer-events:none}

/* === Transition / Animation === */
.transition-all{transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:150ms}
.transition-colors{transition-property:color,background-color,border-color;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:150ms}
.transition-opacity{transition-property:opacity;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:150ms}
.transition-transform{transition-property:transform;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:150ms}
.duration-200{transition-duration:200ms}
.duration-300{transition-duration:300ms}
.duration-500{transition-duration:500ms}
.duration-1000{transition-duration:1000ms}
.ease-in-out{transition-timing-function:cubic-bezier(.4,0,.2,1)}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}
@keyframes ping{75%,100%{transform:scale(2);opacity:0}}
.animate-ping{animation:ping 1s cubic-bezier(0,0,.2,1) infinite}
@keyframes gradient-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.animate-gradient{background-size:200% auto;animation:gradient-shift 4s ease infinite}
@keyframes spin-slow{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.animate-spin-slow{animation:spin-slow 8s linear infinite}

/* === Transform === */
.scale-105{transform:scale(1.05)}
.translate-x-\[-100\%\]{transform:translateX(-100%)}
.translate-x-\[100\%\]{transform:translateX(100%)}

/* === Cursor / Select === */
.cursor-pointer{cursor:pointer}.cursor-help{cursor:help}
.select-none{user-select:none}
.focus\:outline-none:focus{outline:none}

/* === Aspect Ratio === */
.aspect-square{aspect-ratio:1/1}
.aspect-video{aspect-ratio:16/9}

/* === Object Fit === */
.object-cover{object-fit:cover}

/* === Selection === */
.selection\:bg-\[\#34b27b\]\/30 *::selection{background-color:rgba(52,178,123,.30)}
.selection\:text-\[\#34b27b\] *::selection{color:#34b27b}

/* === Hover States === */
.hover\:bg-white:hover{background-color:#fff}
.hover\:bg-white\/5:hover{background-color:rgba(255,255,255,.05)}
.hover\:bg-white\/10:hover{background-color:rgba(255,255,255,.10)}
.hover\:text-white:hover{color:#fff}
.hover\:text-\[\#34b27b\]:hover{color:#34b27b}
.hover\:text-white\/40:hover{color:rgba(255,255,255,.40)}
.hover\:text-white\/60:hover{color:rgba(255,255,255,.60)}
.hover\:border-white\/10:hover{border-color:rgba(255,255,255,.10)}
.hover\:border-\[\#34b27b\]\/30:hover{border-color:rgba(52,178,123,.30)}
.hover\:opacity-70:hover{opacity:.70}
.hover\:opacity-100:hover{opacity:1}
.hover\:scale-\[1\.02\]:hover{transform:scale(1.02)}
.hover\:scale-105:hover{transform:scale(1.05)}
.hover\:shadow-xl:hover{box-shadow:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1)}
.active\:scale-\[0\.98\]:active{transform:scale(0.98)}

/* === Group Hover === */
.group:hover .group-hover\:opacity-100{opacity:1}
.group:hover .group-hover\:scale-105{transform:scale(1.05)}
.group:hover .group-hover\:text-\[\#34b27b\]{color:#34b27b}
.group:hover .group-hover\:opacity-70{opacity:.70}
.group:hover .group-hover\:bg-white\/10{background-color:rgba(255,255,255,.10)}

/* === Responsive: sm (640px) === */
@media(min-width:640px){
  .sm\:top-6{top:1.5rem}
  .sm\:w-\[90\%\]{width:90%}
  .sm\:px-6{padding-left:1.5rem;padding-right:1.5rem}
  .sm\:py-4{padding-top:1rem;padding-bottom:1rem}