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var(--dur-short)var(--ease-out)}.link:hover{text-decoration-color:var(--color-accent);text-decoration-thickness:2px}.nav{background:0 0;border-bottom:var(--rule-hair)solid transparent;position:sticky;top:0;transition:background-color var(--dur-short)var(--ease-out),border-color var(--dur-short)var(--ease-out),box-shadow var(--dur-short)var(--ease-out);z-index:var(--z-sticky)}.nav.is-open,.nav.is-scrolled{background:var(--color-paper)}@supports (color:color-mix(in lab,red,red)){.nav.is-open,.nav.is-scrolled{background:color-mix(in oklch,var(--color-paper)82%,transparent)}}.nav.is-open,.nav.is-scrolled{-webkit-backdrop-filter:blur(16px)saturate(150%);backdrop-filter:blur(16px)saturate(150%);border-bottom-color:var(--color-rule-2);box-shadow:var(--shadow-whisper)}.nav__inner{align-items:center;display:grid;gap:var(--space-sm);grid-template-columns:1fr auto 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var(--color-rule);display:flex;padding-top:var(--space-sm)}.stat__value{color:var(--color-ink);font-family:var(--font-mono);font-size:var(--text-3xl);font-variant-numeric:tabular-nums;font-weight:500;letter-spacing:-.03em;line-height:1}.stat__label{color:var(--color-muted);font-size:var(--text-sm);text-wrap:pretty}@media (min-width:40rem){.stats{gap:var(--space-lg);grid-template-columns:repeat(3,minmax(0,1fr))}.stat{flex-direction:column;gap:var(--space-2xs)}}@media (min-width:60rem){.proof{align-items:start;gap:var(--space-2xl);grid-template-columns:minmax(0,5fr) minmax(0,7fr)}}.steps{display:grid;gap:var(--space-lg)var(--space-md);list-style:none;margin:var(--space-xl)0 0;padding:0}.step{border-top:var(--rule-thick)solid 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(min-width:40rem){.ledger__row{grid-template-columns:minmax(0,2fr) minmax(0,3fr)}}.faq{border-top:var(--rule-hair)solid var(--color-rule);margin-top:var(--space-lg)}.faq__item{border-bottom:var(--rule-hair)solid var(--color-rule)}.faq__q{align-items:center;background:0 0;border:0;color:var(--color-ink);cursor:pointer;display:flex;font-family:var(--font-body);font-size:var(--text-md);font-weight:500;gap:var(--space-md);justify-content:space-between;letter-spacing:-.01em;line-height:1.35;min-height:44px;padding:var(--space-sm)0;text-align:start;width:100%}.faq__q:active .faq__icon,.faq__q:hover .faq__icon{color:var(--color-accent)}.faq__icon{color:var(--color-ink-2);flex:none;height:14px;position:relative;transition:color var(--dur-short)var(--ease-out);width:14px}.faq__icon:after,.faq__icon:before{background:currentColor;border-radius:1px;content:"";height:2px;inset:50% 0 auto;position:absolute;transition:transform var(--dur-short)var(--ease-in-out);translate:0 -50%}.faq__icon:after{transform:rotate(90deg)}.faq__q[aria-expanded=true] .faq__icon:after{transform:rotate(0)}.faq__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--dur-long)var(--ease-in-out)}.faq__panel.is-open{grid-template-rows:1fr}.faq__panel>div{overflow:hidden}.faq__a{color:var(--color-ink-2);line-height:1.65;max-width:var(--measure);padding-bottom:var(--space-md);text-wrap:pretty}.cta{border-top:var(--rule-hair)solid var(--color-rule);display:grid;gap:var(--space-md);padding-block:var(--space-2xl)}.cta__aside{align-content:end;display:grid;gap:var(--space-sm);justify-items:start}@media (min-width:60rem){.cta{align-items:start;gap:var(--space-2xl);grid-template-columns:minmax(0,7fr) minmax(0,5fr)}}.page-head{display:grid;gap:var(--space-md);padding-block:var(--space-xl)var(--space-lg)}.page-head__title{max-width:16ch}.page-head__lede{align-self:end;max-width:var(--measure-tight)}@media (min-width:60rem){.page-head{align-items:end;gap:var(--space-2xl);grid-template-columns:minmax(0,7fr) minmax(0,5fr);padding-block:var(--space-2xl)var(--space-xl)}}.diptych{border-top:var(--rule-hair)solid var(--color-rule-2);display:grid;gap:var(--space-lg);padding-block:var(--space-xl)}.diptych__text{gap:var(--space-sm);max-width:var(--measure-tight)}.diptych__text,.panel{align-content:center;display:grid}.panel{background:var(--color-paper-2);border-radius:var(--radius-lg);min-height:14rem;padding:var(--space-lg)}.panel--figure{border:var(--rule-hair)solid var(--color-rule);display:block;overflow:hidden;padding:0}.panel--figure img{height:100%;-o-object-fit:cover;object-fit:cover;-o-object-position:top;object-position:top;width:100%}.panel--figure figcaption{border-top:var(--rule-hair)solid var(--color-rule-2);padding:var(--space-xs)var(--space-md)}.panel--figure figcaption,.panel__title{color:var(--color-muted);font-size:var(--text-sm)}.panel__title{font-weight:500;margin-bottom:var(--space-sm)}@media (min-width:60rem){.diptych{align-items:center;gap:var(--space-2xl);grid-template-columns:repeat(2,minmax(0,1fr));padding-block:var(--space-2xl)}.diptych--flip .diptych__text{order:2}}.spec{display:grid;margin:0}.spec__row{border-bottom:var(--rule-hair)solid var(--color-rule);display:grid;font-size:var(--text-sm);gap:var(--space-md);grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);padding-block:var(--space-xs)}.spec__row:last-child{border-bottom:0}.spec__key{color:var(--color-ink);font-weight:500}.spec__val{color:var(--color-ink-2);font-variant-numeric:tabular-nums;margin:0;text-wrap:pretty}.list{display:grid;gap:var(--space-2xs);list-style:none;margin:0;padding:0}.list li{color:var(--color-ink-2);padding-inline-start:1.25rem;position:relative;text-wrap:pretty}.list li:before{background:var(--color-ink-2);content:"";height:1px;left:0;position:absolute;top:.78em;width:.7rem}.chips{display:flex;flex-wrap:wrap;gap:var(--space-2xs);list-style:none;margin:0;padding:0}.chips li{align-items:center;border:var(--rule-hair)solid var(--color-rule);border-radius:var(--radius-pill);color:var(--color-ink-2);display:inline-flex;font-size:var(--text-sm);min-height:32px;padding:0 var(--space-xs);white-space:nowrap}.models{display:grid;gap:var(--space-xl)var(--space-lg);margin-bottom:var(--space-2xl);margin-top:var(--space-xl)}.model{align-content:start;border-top:var(--rule-thick)solid var(--color-ink);display:grid;gap:var(--space-sm);padding-top:var(--space-sm)}.model__price{color:var(--color-muted);font-size:var(--text-sm);font-weight:500}@media (min-width:60rem){.models{grid-template-columns:repeat(3,minmax(0,1fr))}}.portrait{margin:0;max-width:26rem}.portrait__media{aspect-ratio:4/5;background:var(--color-paper-2);border:var(--rule-hair)solid var(--color-rule);border-radius:var(--radius-lg);overflow:hidden}.portrait__media img{height:100%;-o-object-fit:cover;object-fit:cover;width:100%}.portrait figcaption{color:var(--color-muted);font-size:var(--text-sm);margin-top:var(--space-xs)}.split{display:grid;gap:var(--space-lg)}@media (min-width:60rem){.split{align-items:start;gap:var(--space-2xl);grid-template-columns:minmax(0,5fr) minmax(0,7fr)}.split--flip{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}}.form-grid{display:grid;gap:var(--space-md)}.field{display:grid;gap:var(--space-2xs)}.field label{color:var(--color-ink);font-size:var(--text-sm);font-weight:500}.field input,.field select,.field textarea{background:var(--color-paper);border:var(--rule-hair)solid var(--color-rule);border-radius:var(--radius-sm);color:var(--color-ink);font:inherit;line-height:1.4;min-height:44px;padding:var(--space-2xs)var(--space-sm);transition:border-color var(--dur-short)var(--ease-out);width:100%}.field textarea{min-height:9rem;resize:vertical}.field input:disabled,.field select:disabled,.field textarea:disabled{cursor:not-allowed;opacity:.55}.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--color-ink-2)}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-ink)}.notice{background:var(--color-paper-2);border-radius:var(--radius-sm);color:var(--color-ink);font-size:var(--text-sm);padding:var(--space-sm)var(--space-md)}@media (min-width:40rem){.form-grid--pair{grid-template-columns:repeat(2,minmax(0,1fr))}}.diagram{display:block;font-family:var(--font-body);height:auto;width:100%}.diagram__node{fill:var(--color-paper);stroke:var(--color-rule);stroke-width:1px}.diagram__node--core{fill:var(--color-ink);stroke:var(--color-ink)}.diagram__label{fill:var(--color-ink);font-size:13px;font-weight:500}.diagram__label--inv{fill:var(--color-paper)}.diagram__note{fill:var(--color-muted);font-size:11px}.diagram__note--inv{fill:var(--color-muted-inv)}.diagram__edge{fill:none;stroke:var(--color-rule);stroke-width:1.25px}.diagram__edge--accent{stroke:var(--color-accent)}.foot{background:var(--color-ink-deep);color:var(--color-paper);margin-top:var(--space-xl)}.foot__inner{padding-block:var(--space-2xl)var(--space-xl)}.foot__line{font-family:var(--font-display);font-size:clamp(1.9rem,4.2vw + .4rem,3.4rem);font-weight:700;letter-spacing:-.03em;line-height:1.04;max-width:24ch;min-width:0;overflow-wrap:anywhere;text-wrap:balance}.foot__meta{border-top:var(--rule-hair)solid var(--color-rule-inv);display:grid;gap:var(--space-lg);margin-top:var(--space-2xl);padding-top:var(--space-lg)}.foot__brand{align-items:center;color:var(--color-paper);display:inline-flex;font-family:var(--font-mono);font-size:1.05rem;font-weight:500;gap:.45em;letter-spacing:-.03em;text-decoration:none}.foot__brand:after{background:var(--color-accent-inv);border-radius:50%;content:"";height:.42em;translate:0 .05em;width:.42em}.foot__links{display:flex;flex-wrap:wrap;gap:var(--space-3xs)var(--space-md);list-style:none;margin:0;padding:0}.foot__lang,.foot__links a{align-items:center;background:0 0;border:0;color:var(--color-muted-inv);cursor:pointer;display:inline-flex;font-family:var(--font-body);font-size:var(--text-sm);min-height:44px;padding:0;text-decoration:none;transition:color var(--dur-short)var(--ease-out);white-space:nowrap}.foot__lang:active,.foot__lang:hover,.foot__links a:active,.foot__links a:hover{color:var(--color-paper)}.foot__credit{color:var(--color-muted-inv);display:grid;font-size:var(--text-xs);gap:var(--space-2xs);max-width:var(--measure);text-wrap:pretty}.foot__credit a{color:var(--color-muted-inv);text-decoration:underline;text-decoration-color:var(--color-rule-inv);text-underline-offset:.2em}.foot__credit a:hover{color:var(--color-paper)}.foot :focus-visible{outline-color:var(--color-accent-inv)}@media (min-width:60rem){.foot__meta{align-items:start;-moz-column-gap:var(--space-2xl);column-gap:var(--space-2xl);grid-template-columns:auto 1fr}.foot__credit{grid-column:1/-1}}.faq__h{font:inherit;margin:0}.trio{display:grid;gap:var(--space-xl)var(--space-lg)}@media (min-width:60rem){.trio{grid-template-columns:repeat(3,minmax(0,1fr))}}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}}@layer utilities{.visible{visibility:visible}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.contents{display:contents}.grid{display:grid}.hidden{display:none}.inline{display:inline}.table{display:table}.transform{transform:var(--tw-rotate-x,)var(--tw-rotate-y,)var(--tw-rotate-z,)var(--tw-skew-x,)var(--tw-skew-y,)}.resize{resize:both}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.lowercase{text-transform:lowercase}.italic{font-style:italic}.ordinal{--tw-ordinal:ordinal;font-variant-numeric:var(--tw-ordinal,)var(--tw-slashed-zero,)var(--tw-numeric-figure,)var(--tw-numeric-spacing,)var(--tw-numeric-fraction,)}.underline{text-decoration-line:underline}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px)}.blur,.invert{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,)}.invert{--tw-invert:invert(100%)}.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{transition-duration:var(--tw-duration,var(--default-transition-duration));transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,backdrop-filter,display,visibility,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function))}.ease-in-out{--tw-ease:var(--ease-in-out);transition-timing-function:var(--ease-in-out)}.ease-out{--tw-ease:var(--ease-out);transition-timing-function:var(--ease-out)}}:root{--color-paper:oklch(98.2% .005 85);--color-paper-2:oklch(95.6% .006 85);--color-paper-3:oklch(92.6% .008 85);--color-ink:oklch(18% .012 75);--color-ink-2:oklch(36% .012 75);--color-ink-deep:oklch(13.5% .012 75);--color-rule:oklch(86% .008 85);--color-rule-2:oklch(90.5% .006 85);--color-muted:oklch(50% .012 75);--color-accent:oklch(50% .19 264);--color-accent-ink:oklch(98.2% .005 85);--color-accent-soft:oklch(94.5% .03 264);--color-focus:oklch(55% .22 264);--color-rule-inv:oklch(28% .012 75);--color-muted-inv:oklch(70% .01 80);--color-accent-inv:oklch(74% .14 264);--font-display:"Geist","Noto Sans HK","PingFang HK","Microsoft JhengHei",ui-sans-serif,system-ui,sans-serif;--font-body:"Geist","Noto Sans HK","PingFang HK","Microsoft JhengHei",ui-sans-serif,system-ui,sans-serif;--font-mono:"Geist Mono","Noto Sans HK","PingFang HK","Microsoft JhengHei",ui-monospace,monospace;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-md:1.125rem;--text-lg:1.375rem;--text-xl:1.75rem;--text-2xl:2.25rem;--text-3xl:2.875rem;--text-display-s:clamp(2.1rem,3.4vw + .6rem,3.5rem);--text-display:clamp(2.6rem,4.8vw + .6rem,5rem);--space-3xs:.25rem;--space-2xs:.5rem;--space-xs:.75rem;--space-sm:1rem;--space-md:1.5rem;--space-lg:2rem;--space-xl:3rem;--space-2xl:4.5rem;--space-3xl:7rem;--rule-hair:1px;--rule-thick:2px;--radius-sm:8px;--radius-md:14px;--radius-lg:22px;--radius-pill:999px;--measure:64ch;--measure-tight:52ch;--page-gutter:clamp(1.25rem,4vw,3rem);--page-max:80rem;--nav-height:4rem;--ease-out:cubic-bezier(.16,1,.3,1);--ease-in:cubic-bezier(.7,0,.84,0);--ease-in-out:cubic-bezier(.65,0,.35,1);--dur-micro:.12s;--dur-short:.2s;--dur-long:.42s;--shadow-whisper:0 1px 2px oklch(20% .01 75/.06);--z-base:1;--z-raised:10;--z-sticky:200;--z-modal:400}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}