@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-space-y-reverse:0;--tw-border-style:solid;--tw-leading:initial;--tw-font-weight:initial;--tw-tracking:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000;--tw-outline-style:solid}}}@layer theme{:root,:host{--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--container-2xl:42rem;--container-3xl:48rem;--container-4xl:56rem;--container-5xl:64rem;--container-7xl:80rem;--text-xs:.75rem;--text-xs--line-height:calc(1 / .75);--text-sm:.875rem;--text-sm--line-height:calc(1.25 / .875);--text-base:1rem;--text-base--line-height:calc(1.5 / 1);--text-lg:1.125rem;--text-lg--line-height:calc(1.75 / 1.125);--text-xl:1.25rem;--text-xl--line-height:calc(1.75 / 1.25);--text-2xl:1.5rem;--text-2xl--line-height:calc(2 / 1.5);--text-4xl:2.25rem;--text-4xl--line-height:calc(2.5 / 2.25);--text-5xl:3rem;--text-5xl--line-height:1;--text-6xl:3.75rem;--text-6xl--line-height:1;--font-weight-medium:500;--font-weight-semibold:600;--tracking-wider:.05em;--leading-tight:1.25;--leading-relaxed:1.625;--radius-md:.375rem;--radius-lg:.5rem;--radius-xl:.75rem;--radius-2xl:1rem;--animate-pulse:pulse 2s cubic-bezier(.4, 0, .6, 1) infinite;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-ui);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.collapse{visibility:collapse}.invisible{visibility:hidden}.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.absolute{position:absolute}.fixed{position:fixed}.relative{position:relative}.static{position:static}.sticky{position:sticky}.right-0{right:0}.left-0{left:0}.isolate{isolation:isolate}.z-20{z-index:20}.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}}.mx-auto{margin-inline:auto}.my-3{margin-block:calc(var(--spacing) * 3)}.mt-1{margin-top:var(--spacing)}.mt-2{margin-top:calc(var(--spacing) * 2)}.mt-3{margin-top:calc(var(--spacing) * 3)}.mt-4{margin-top:calc(var(--spacing) * 4)}.mt-5{margin-top:calc(var(--spacing) * 5)}.mt-6{margin-top:calc(var(--spacing) * 6)}.mt-7{margin-top:calc(var(--spacing) * 7)}.mt-8{margin-top:calc(var(--spacing) * 8)}.mt-10{margin-top:calc(var(--spacing) * 10)}.mt-12{margin-top:calc(var(--spacing) * 12)}.mt-14{margin-top:calc(var(--spacing) * 14)}.mb-14{margin-bottom:calc(var(--spacing) * 14)}.ml-3{margin-left:calc(var(--spacing) * 3)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.inline-flex{display:inline-flex}.table{display:table}.size-4{width:calc(var(--spacing) * 4);height:calc(var(--spacing) * 4)}.h-3{height:calc(var(--spacing) * 3)}.h-5{height:calc(var(--spacing) * 5)}.h-9{height:calc(var(--spacing) * 9)}.h-11{height:calc(var(--spacing) * 11)}.h-12{height:calc(var(--spacing) * 12)}.h-16{height:calc(var(--spacing) * 16)}.min-h-10{min-height:calc(var(--spacing) * 10)}.min-h-\[60vh\]{min-height:60vh}.min-h-screen{min-height:100vh}.w-3\/4{width:75%}.w-32{width:calc(var(--spacing) * 32)}.w-44{width:calc(var(--spacing) * 44)}.w-full{width:100%}.max-w-2xl{max-width:var(--container-2xl)}.max-w-3xl{max-width:var(--container-3xl)}.max-w-4xl{max-width:var(--container-4xl)}.max-w-5xl{max-width:var(--container-5xl)}.max-w-7xl{max-width:var(--container-7xl)}.shrink-0{flex-shrink:0}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.animate-pulse{animation:var(--animate-pulse)}.cursor-pointer{cursor:pointer}.resize{resize:both}.list-none{list-style-type:none}.grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.justify-end{justify-content:flex-end}.gap-2{gap:calc(var(--spacing) * 2)}.gap-3{gap:calc(var(--spacing) * 3)}.gap-4{gap:calc(var(--spacing) * 4)}.gap-5{gap:calc(var(--spacing) * 5)}.gap-6{gap:calc(var(--spacing) * 6)}.gap-px{gap:1px}:where(.space-y-1>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(var(--spacing) * var(--tw-space-y-reverse));margin-block-end:calc(var(--spacing) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-5>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 5) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 5) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-6>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 6) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 6) * calc(1 - var(--tw-space-y-reverse)))}:where(.space-y-8>:not(:last-child)){--tw-space-y-reverse:0;margin-block-start:calc(calc(var(--spacing) * 8) * var(--tw-space-y-reverse));margin-block-end:calc(calc(var(--spacing) * 8) * calc(1 - var(--tw-space-y-reverse)))}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.overflow-x-auto{overflow-x:auto}.rounded-2xl{border-radius:var(--radius-2xl)}.rounded-\[7px\]{border-radius:7px}.rounded-full{border-radius:3.40282e38px}.rounded-lg{border-radius:var(--radius-lg)}.rounded-md{border-radius:var(--radius-md)}.rounded-xl{border-radius:var(--radius-xl)}.border{border-style:var(--tw-border-style);border-width:1px}.border-t{border-top-style:var(--tw-border-style);border-top-width:1px}.border-b{border-bottom-style:var(--tw-border-style);border-bottom-width:1px}.border-l-2{border-left-style:var(--tw-border-style);border-left-width:2px}.border-\[var\(--color-border\)\]{border-color:var(--color-border)}.border-\[var\(--color-bronze\)\]{border-color:var(--color-bronze)}.border-\[var\(--color-ink\)\]{border-color:var(--color-ink)}.border-\[var\(--color-jade\)\]{border-color:var(--color-jade)}.bg-\[var\(--color-border\)\]{background-color:var(--color-border)}.bg-\[var\(--color-deep-jade\)\]{background-color:var(--color-deep-jade)}.bg-\[var\(--color-elevated\)\]{background-color:var(--color-elevated)}.bg-\[var\(--color-paper\)\]{background-color:var(--color-paper)}.bg-\[var\(--color-warm-paper\)\]{background-color:var(--color-warm-paper)}.bg-transparent{background-color:#0000}.p-1\.5{padding:calc(var(--spacing) * 1.5)}.p-3{padding:calc(var(--spacing) * 3)}.p-4{padding:calc(var(--spacing) * 4)}.p-5{padding:calc(var(--spacing) * 5)}.p-6{padding:calc(var(--spacing) * 6)}.px-2{padding-inline:calc(var(--spacing) * 2)}.px-3{padding-inline:calc(var(--spacing) * 3)}.px-4{padding-inline:calc(var(--spacing) * 4)}.px-5{padding-inline:calc(var(--spacing) * 5)}.px-6{padding-inline:calc(var(--spacing) * 6)}.py-1{padding-block:var(--spacing)}.py-3{padding-block:calc(var(--spacing) * 3)}.py-6{padding-block:calc(var(--spacing) * 6)}.py-12{padding-block:calc(var(--spacing) * 12)}.py-16{padding-block:calc(var(--spacing) * 16)}.py-20{padding-block:calc(var(--spacing) * 20)}.pt-5{padding-top:calc(var(--spacing) * 5)}.pt-6{padding-top:calc(var(--spacing) * 6)}.pt-7{padding-top:calc(var(--spacing) * 7)}.pt-8{padding-top:calc(var(--spacing) * 8)}.pb-16{padding-bottom:calc(var(--spacing) * 16)}.pl-5{padding-left:calc(var(--spacing) * 5)}.text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.text-4xl{font-size:var(--text-4xl);line-height:var(--tw-leading,var(--text-4xl--line-height))}.text-5xl{font-size:var(--text-5xl);line-height:var(--tw-leading,var(--text-5xl--line-height))}.text-base{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}.text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}.text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}.leading-6{--tw-leading:calc(var(--spacing) * 6);line-height:calc(var(--spacing) * 6)}.leading-7{--tw-leading:calc(var(--spacing) * 7);line-height:calc(var(--spacing) * 7)}.leading-8{--tw-leading:calc(var(--spacing) * 8);line-height:calc(var(--spacing) * 8)}.leading-relaxed{--tw-leading:var(--leading-relaxed);line-height:var(--leading-relaxed)}.leading-tight{--tw-leading:var(--leading-tight);line-height:var(--leading-tight)}.font-medium{--tw-font-weight:var(--font-weight-medium);font-weight:var(--font-weight-medium)}.font-semibold{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}.tracking-\[\.18em\]{--tw-tracking:.18em;letter-spacing:.18em}.tracking-\[0\.2em\]{--tw-tracking:.2em;letter-spacing:.2em}.tracking-\[0\.22em\]{--tw-tracking:.22em;letter-spacing:.22em}.tracking-wider{--tw-tracking:var(--tracking-wider);letter-spacing:var(--tracking-wider)}.break-all{word-break:break-all}.whitespace-pre-wrap{white-space:pre-wrap}.text-\[var\(--color-bronze\)\]{color:var(--color-bronze)}.text-\[var\(--color-ink\)\]{color:var(--color-ink)}.text-\[var\(--color-ink-secondary\)\]{color:var(--color-ink-secondary)}.text-\[var\(--color-jade\)\]{color:var(--color-jade)}.text-\[var\(--color-muted\)\]{color:var(--color-muted)}.text-\[var\(--color-paper\)\]{color:var(--color-paper)}.text-\[var\(--color-vermilion\)\]{color:var(--color-vermilion)}.lowercase{text-transform:lowercase}.uppercase{text-transform:uppercase}.underline{text-decoration-line:underline}.underline-offset-4{text-underline-offset:4px}.shadow,.shadow-sm{--tw-shadow:0 1px 3px 0 var(--tw-shadow-color,#0000001a), 0 1px 2px -1px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.shadow-xl{--tw-shadow:0 20px 25px -5px var(--tw-shadow-color,#0000001a), 0 8px 10px -6px var(--tw-shadow-color,#0000001a);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.transition{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,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-colors{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-transform{transition-property:transform,translate,scale,rotate;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.group-open\:rotate-180:is(:where(.group):is([open],:popover-open,:open) *){rotate:180deg}@media (hover:hover){.hover\:border-\[var\(--color-jade\)\]:hover{border-color:var(--color-jade)}.hover\:bg-\[var\(--color-jade\)\]:hover{background-color:var(--color-jade)}.hover\:bg-\[var\(--color-warm-paper\)\]:hover{background-color:var(--color-warm-paper)}}.focus-visible\:bg-\[var\(--color-warm-paper\)\]:focus-visible{background-color:var(--color-warm-paper)}.focus-visible\:ring-2:focus-visible{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(2px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}.focus-visible\:ring-\[var\(--color-jade\)\]:focus-visible{--tw-ring-color:var(--color-jade)}.focus-visible\:ring-offset-2:focus-visible{--tw-ring-offset-width:2px;--tw-ring-offset-shadow:var(--tw-ring-inset,) 0 0 0 var(--tw-ring-offset-width) var(--tw-ring-offset-color)}.focus-visible\:ring-offset-\[var\(--color-paper\)\]:focus-visible{--tw-ring-offset-color:var(--color-paper)}.focus-visible\:outline-2:focus-visible{outline-style:var(--tw-outline-style);outline-width:2px}.focus-visible\:outline-offset-2:focus-visible{outline-offset:2px}.focus-visible\:outline-\[var\(--color-jade\)\]:focus-visible{outline-color:var(--color-jade)}.focus-visible\:outline-none:focus-visible{--tw-outline-style:none;outline-style:none}.disabled\:pointer-events-none:disabled{pointer-events:none}.disabled\:opacity-50:disabled{opacity:.5}.aria-\[current\=page\]\:bg-\[var\(--color-warm-paper\)\][aria-current=page]{background-color:var(--color-warm-paper)}.aria-\[current\=page\]\:font-semibold[aria-current=page]{--tw-font-weight:var(--font-weight-semibold);font-weight:var(--font-weight-semibold)}@media (min-width:40rem){.sm\:mb-20{margin-bottom:calc(var(--spacing) * 20)}.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:grid-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.sm\:p-6{padding:calc(var(--spacing) * 6)}.sm\:p-8{padding:calc(var(--spacing) * 8)}.sm\:px-8{padding-inline:calc(var(--spacing) * 8)}.sm\:py-16{padding-block:calc(var(--spacing) * 16)}.sm\:pt-12{padding-top:calc(var(--spacing) * 12)}.sm\:text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.sm\:text-5xl{font-size:var(--text-5xl);line-height:var(--tw-leading,var(--text-5xl--line-height))}.sm\:text-6xl{font-size:var(--text-6xl);line-height:var(--tw-leading,var(--text-6xl--line-height))}.sm\:text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}}@media (min-width:64rem){.lg\:px-10{padding-inline:calc(var(--spacing) * 10)}.lg\:py-28{padding-block:calc(var(--spacing) * 28)}}.\[\&\:\:-webkit-details-marker\]\:hidden::-webkit-details-marker{display:none}}:root{--color-paper:#f7f4ec;--color-warm-paper:#eee8dc;--color-elevated:#fcfaf5;--color-ink:#191916;--color-ink-secondary:#625e55;--color-muted:#6d685e;--color-jade:#4a695b;--color-deep-jade:#273f35;--color-bronze:#795832;--color-vermilion:#9f493a;--color-border:#d8d0c3;--font-editorial:Georgia, "Times New Roman", serif;--font-ui:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{border-color:var(--color-border)}html{background:var(--color-paper);color:var(--color-ink);scroll-behavior:smooth}body{background:radial-gradient(circle at top, #ffffff73, transparent 34rem), var(--color-paper);min-height:100vh;color:var(--color-ink);font-family:var(--font-ui);text-rendering:optimizelegibility;margin:0}::selection{background:var(--color-jade)}@supports (color:color-mix(in lab, red, red)){::selection{background:color-mix(in srgb, var(--color-jade) 24%, transparent)}}.editorial-title{font-family:var(--font-editorial);letter-spacing:-.035em}.paper-noise{background-image:linear-gradient(#19191605 1px,#0000 1px);background-size:100% 24px}.yi-home{background:var(--color-paper);min-height:100vh;color:var(--color-ink)}.yi-header{border-bottom:1px solid var(--color-warm-paper);background:var(--color-elevated)}.yi-header-inner{align-items:center;gap:32px;max-width:1240px;min-height:76px;margin:auto;padding:12px 40px;display:flex}.yi-brand{letter-spacing:-.04em;white-space:nowrap;align-items:center;gap:10px;font:600 22px Georgia,serif;display:inline-flex}.yi-crane-mark{flex:none;width:32px;height:32px}.yi-header-nav{color:var(--color-deep-jade);gap:27px;margin-left:auto;font-size:14px;display:flex}.yi-header-nav a:hover,.yi-footer a:hover{color:var(--color-vermilion)}.yi-hero{border-bottom:1px solid var(--color-warm-paper);overflow:clip}.yi-hero-inner{isolation:isolate;max-width:1240px;margin:auto;padding:82px 40px 72px;position:relative}.yi-kicker{color:var(--color-bronze);letter-spacing:.17em;margin:0;font-size:12px;font-weight:600}.yi-hero h1,.yi-section h2,.yi-continuity h2{letter-spacing:-.035em;font-family:Georgia,Noto Serif SC,Songti SC,serif;font-weight:400}.yi-hero h1{white-space:pre-line;text-wrap:balance;max-width:100%;margin:24px 0;font-size:clamp(2.5rem,4.5vw,3.65rem);line-height:1.16}.yi-hero-intro{max-width:660px;color:var(--color-deep-jade);margin:0 0 32px;font-size:17px;line-height:1.75}.home-ask-box{border:1px solid var(--color-warm-paper);background:var(--color-elevated);border-radius:4px 20px 4px 4px;max-width:860px;overflow:hidden;box-shadow:0 4px 18px #19191608}.home-ask-box:focus-within{border-color:var(--color-jade);box-shadow:0 2px 12px #4a695b0f}.yi-home .home-ask-box textarea:focus-visible{outline:none}.home-ask-box textarea{resize:vertical;width:100%;min-height:132px;color:var(--color-ink);background:0 0;border:0;outline:0;padding:23px 25px;font-size:18px;line-height:1.6;display:block}.home-ask-box textarea::placeholder{color:var(--color-jade);opacity:1}.home-ask-actions{border-top:1px solid var(--color-warm-paper);flex-direction:column;justify-content:space-between;align-items:flex-start;gap:16px;padding:14px 20px;display:flex}.home-categories{flex-wrap:wrap;gap:7px;display:flex}.home-categories button{border:1px solid var(--color-warm-paper);color:var(--color-deep-jade);border-radius:999px;padding:9px 10px;font-size:14px;line-height:1.2}.home-categories button[aria-pressed=true]{background:var(--color-ink);border-color:var(--color-ink);color:var(--color-elevated)}.home-ask-submit{background:var(--color-vermilion);min-height:44px;color:var(--color-elevated);border-radius:3px;flex-shrink:0;justify-content:center;align-self:flex-end;align-items:center;gap:8px;padding:10px 17px;font-size:14px;display:inline-flex}.home-ask-submit:hover{background:var(--color-ink)}.home-ask-error{color:var(--color-vermilion);padding:0 18px 14px;font-size:14px}.yi-privacy{max-width:860px;color:var(--color-jade);margin:17px 0 0;font-size:14px}.yi-section{grid-template-columns:300px 1fr;gap:56px;max-width:1240px;margin:auto;padding:86px 40px 110px;display:grid}.yi-section h2,.yi-continuity h2{margin:18px 0 0;font-size:clamp(2rem,3.4vw,2.7rem);line-height:1.25}.yi-ways{grid-template-columns:repeat(3,1fr);gap:28px;display:grid}.yi-ways article{border-top:1px solid var(--color-warm-paper);padding-top:20px}.yi-index{color:var(--color-bronze);font:23px Georgia,serif}.yi-ways h3{margin:25px 0 12px;font:23px Georgia,Noto Serif SC,serif}.yi-ways p,.yi-continuity p:not(.yi-kicker){color:var(--color-deep-jade);font-size:16px;line-height:1.75}.yi-continuity{border-block:1px solid var(--color-warm-paper);background:var(--color-warm-paper);justify-content:space-between;align-items:end;gap:36px;padding:85px max(40px,50vw - 580px);display:flex}.yi-continuity>div{max-width:640px}.yi-continuity>a{border-bottom:1px solid var(--color-vermilion);color:var(--color-vermilion);white-space:nowrap;align-items:center;gap:8px;padding-bottom:7px;display:inline-flex}.yi-footer{max-width:1240px;color:var(--color-jade);justify-content:space-between;gap:24px;margin:auto;padding:34px 40px;font-size:14px;display:flex}.yi-footer span:first-child{color:var(--color-ink);font:19px Georgia,serif}.yi-home :focus-visible{outline:2px solid var(--color-jade);outline-offset:3px}.language-switcher-subtle .language-switcher-trigger{min-height:32px;box-shadow:none;color:var(--color-muted);background:0 0;border-color:#0000;padding:4px 7px;font-size:12px;font-weight:400}.language-switcher-subtle .language-switcher-trigger:hover{border-color:var(--color-border);background:var(--color-elevated)}.language-switcher-subtle .language-switcher-trigger svg{width:13px;height:13px;color:var(--color-muted)}.reading-page{color:#24211d}.ask-page button[type=submit]{color:#fff;background:#96382f}.ask-page button[type=submit]:hover{background:#762921}.ask-page :focus-visible,.reading-page a:focus-visible,.reading-page button:focus-visible,.reading-page summary:focus-visible{outline-offset:3px;outline:2px solid #4e6b61}.reading-question{border-bottom:1px solid var(--color-border);max-width:800px;padding-bottom:28px;font-family:Georgia,Noto Serif SC,Songti SC,serif;line-height:1.55}.reading-layout{grid-template-columns:minmax(240px,310px) minmax(0,1fr);align-items:start;gap:65px;margin-top:40px;display:grid}.reading-cast{border:1px solid var(--color-border);background:var(--color-elevated);border-radius:16px;padding:25px 25px 30px;font-size:14px;position:sticky;top:28px}.reading-eyebrow{color:var(--color-bronze);letter-spacing:.15em;text-transform:uppercase;font-size:12px;font-weight:600}.reading-hex-title{align-items:baseline;gap:11px;margin-top:19px;font-family:Georgia,Noto Serif SC,serif;display:flex}.reading-hex-title span{color:var(--color-bronze);font-size:40px}.reading-hex-title h2{font-size:26px;line-height:1.25}.reading-lines{flex-direction:column;gap:8px;max-width:180px;margin:30px 0 23px;display:flex}.reading-line{align-items:center;gap:11px;height:10px;display:flex}.reading-line-number{width:12px;color:var(--color-muted);font-size:12px}.reading-line-bars{gap:12px;width:122px;display:flex}.reading-line-bars i{background:var(--color-ink);flex:1;height:6px;display:block}.reading-line-bars.moving i{background:var(--color-vermilion)}.reading-line-moving{color:var(--color-vermilion);font-size:10px}.reading-main{min-width:0}.reading-status{color:var(--color-jade);font-size:14px}.reading-card-label{color:var(--color-bronze);letter-spacing:.12em;text-transform:uppercase;font-size:12px;font-weight:700}.reading-takeaway{border-left:3px solid var(--color-vermilion);background:var(--color-warm-paper);padding:27px 29px 30px}.reading-takeaway>p:last-child{font-family:Georgia,Noto Serif SC,serif;font-size:21px;line-height:1.75}.reading-action{border:1px solid var(--color-border);background:var(--color-elevated);border-radius:14px;margin-top:18px;padding:24px 28px}.reading-action>p:last-child{font-size:17px;line-height:1.75}.reading-cast-details summary{cursor:pointer;color:var(--color-muted);text-underline-offset:3px;font-size:12px;text-decoration:underline}.reading-deeper{border-block:1px solid var(--color-border)}.reading-deeper>summary{cursor:pointer;padding:22px 3px;list-style:none}.reading-deeper>summary::-webkit-details-marker{display:none}.reading-deeper>summary span{flex-direction:column;gap:5px;display:flex}.reading-deeper>summary strong{font-family:Georgia,Noto Serif SC,serif;font-size:20px;font-weight:400}.reading-deeper>summary small{color:var(--color-muted);font-size:13px}.reading-deeper>summary:after{content:"+";float:right;color:var(--color-bronze);margin-top:-37px;font-size:24px}.reading-deeper[open]>summary:after{content:"−"}.reading-deeper-content{padding:3px 3px 25px}.reading-section{border-bottom:1px solid var(--color-border);padding-bottom:22px}.reading-section+.reading-section{padding-top:25px}.reading-interpretation p{line-height:1.75}.reading-evidence summary{font-family:Georgia,Noto Serif SC,serif}.reading-evidence [lang=zh]{border-left:2px solid var(--color-bronze);padding-left:16px}.reading-footer{border-top:1px solid var(--color-border);justify-content:flex-end;margin-top:56px;padding-top:18px;display:flex}.explore-page{color:#24211d;min-height:100vh}.explore-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:20px;max-width:1080px;min-height:76px;margin:auto;padding:18px 32px;display:flex}.explore-header>a{color:var(--color-ink-secondary);text-underline-offset:4px;font-size:14px;text-decoration:underline}.explore-page article{max-width:780px;margin:auto;padding:92px 32px 110px}.explore-page h1,.explore-page h2{letter-spacing:-.03em;font-family:Georgia,Noto Serif SC,Songti SC,serif;font-weight:400}.explore-page h1{text-wrap:balance;margin:24px 0 22px;font-size:clamp(2.6rem,6vw,4.4rem);line-height:1.08}.explore-description{max-width:660px;color:var(--color-ink-secondary);font-size:19px;line-height:1.75}.explore-direct-answer{border-left:3px solid var(--color-vermilion);background:var(--color-warm-paper);margin-top:62px;padding:27px 29px}.explore-direct-answer h2{font-size:25px}.explore-direct-answer p{margin-top:13px;font-size:17px;line-height:1.8}.explore-sections{margin-top:72px}.explore-sections section{border-top:1px solid var(--color-border);grid-template-columns:58px 1fr;gap:18px;padding:30px 0;display:grid}.explore-sections section>span{color:var(--color-bronze);font:21px Georgia,serif}.explore-sections h2,.explore-tool h2,.explore-cta h2{font-size:29px;line-height:1.3}.explore-sections p,.explore-tool p,.explore-cta p{color:var(--color-ink-secondary);margin-top:10px;font-size:16px;line-height:1.8}.explore-tool{border:1px solid var(--color-border);background:var(--color-elevated);border-radius:16px;justify-content:space-between;align-items:end;gap:30px;margin-top:55px;padding:31px;display:flex}.explore-tool>div{max-width:500px}.explore-tool>a,.explore-cta>a{color:var(--color-vermilion);border-bottom:1px solid var(--color-vermilion);flex-shrink:0;padding-bottom:5px}.explore-cta{background:var(--color-deep-jade);color:var(--color-paper);margin-top:70px;padding:47px 35px}.explore-cta p{color:#ded8ce;max-width:560px}.explore-cta>a{color:#f0b6a9;border-color:#f0b6a9;margin-top:22px;display:inline-block}.explore-page :focus-visible{outline:2px solid var(--color-jade);outline-offset:3px}.guide-page,.guide-index{min-height:100vh;color:var(--color-ink)}.guide-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:24px;max-width:1080px;min-height:76px;margin:auto;padding:14px 32px;display:flex}.guide-header nav{color:var(--color-ink-secondary);gap:22px;font-size:14px;display:flex}.guide-header nav a:hover{color:var(--color-vermilion)}.guide-page>article{max-width:780px;margin:auto;padding:88px 32px 110px}.guide-page h1,.guide-page h2,.guide-index h1,.guide-index h2{font-family:var(--font-editorial);letter-spacing:-.03em;font-weight:400}.guide-page h1{text-wrap:balance;margin:24px 0 21px;font-size:clamp(2.65rem,6vw,4.35rem);line-height:1.08}.guide-description{max-width:680px;color:var(--color-ink-secondary);font-size:19px;line-height:1.75}.guide-direct-answer{border-left:3px solid var(--color-vermilion);background:var(--color-warm-paper);margin-top:58px;padding:27px 29px}.guide-direct-answer h2{font-size:25px}.guide-direct-answer p{margin-top:13px;font-size:17px;line-height:1.8}.guide-figure{margin-top:42px}.guide-figure img{border:1px solid var(--color-border);background:var(--color-warm-paper);width:100%;height:auto;display:block}.guide-figure figcaption{color:var(--color-muted);margin-top:11px;font-size:13px;line-height:1.6}.guide-body{margin-top:56px}.guide-body>section{border-top:1px solid var(--color-border);padding:31px 0 34px}.guide-body h2{font-size:29px;line-height:1.3}.guide-body p,.guide-body li{color:var(--color-ink-secondary);font-size:16px;line-height:1.85}.guide-body p{margin-top:14px}.guide-body ul{margin:17px 0 0;padding-left:24px;list-style:outside}.guide-body ol{margin:17px 0 0;padding-left:28px;list-style:decimal}.guide-body li+li{margin-top:8px}.guide-body a{color:var(--color-deep-jade);text-underline-offset:3px;font-weight:600;text-decoration:underline;text-decoration-thickness:1px}.guide-body a:hover{color:var(--color-vermilion)}.guide-body .overflow-x-auto{border:1px solid var(--color-border);background:var(--color-elevated);border-radius:8px;margin-top:18px}.guide-body table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px}.guide-body th,.guide-body td{border-bottom:1px solid var(--color-border);text-align:left;vertical-align:top;padding:13px 15px;line-height:1.55}.guide-body th{background:var(--color-warm-paper);color:var(--color-ink);font-size:13px;font-weight:700}.guide-body tr:last-child td{border-bottom:0}.guide-evidence{border:1px solid var(--color-border);background:var(--color-elevated);margin-top:26px;padding:24px 26px}.guide-evidence p{color:var(--color-muted);font-size:13px;line-height:1.7}.guide-evidence p+p{margin-top:7px}.guide-label{letter-spacing:.13em;text-transform:uppercase;font-weight:700;color:var(--color-bronze)!important;font-size:11px!important}.guide-related{border:1px solid var(--color-border);margin-top:24px;padding:22px 26px}.guide-related ul{margin:10px 0 0;padding-left:20px}.guide-related li+li{margin-top:7px}.guide-related a{color:var(--color-jade);text-underline-offset:3px;text-decoration:underline}.guide-cta{background:var(--color-deep-jade);color:var(--color-paper);margin-top:64px;padding:43px 35px}.guide-cta h2{font-size:29px}.guide-cta p{color:#ded8ce;max-width:570px;margin-top:11px;line-height:1.75}.guide-cta a{color:#f0b6a9;border-bottom:1px solid #f0b6a9;margin-top:22px;padding-bottom:5px;display:inline-block}.guide-page :focus-visible,.guide-index :focus-visible{outline:2px solid var(--color-jade);outline-offset:3px}.guide-index-hero{max-width:1080px;margin:auto;padding:92px 32px 70px}.guide-index-hero h1{text-wrap:balance;max-width:800px;margin:23px 0 20px;font-size:clamp(2.65rem,6vw,4.45rem);line-height:1.09}.guide-index-hero>p:last-child{max-width:670px;color:var(--color-ink-secondary);font-size:19px;line-height:1.75}.guide-index-list{max-width:1080px;margin:auto;padding:0 32px 110px}.guide-index-list article{border-top:1px solid var(--color-border);grid-template-columns:65px 1fr;gap:18px;padding:31px 0 34px;display:grid}.guide-index-list article>span{color:var(--color-bronze);font:22px var(--font-editorial)}.guide-index-list h2{margin-top:8px;font-size:30px;line-height:1.25}.guide-index-list h2 a:hover{color:var(--color-vermilion)}.guide-index-list article p:last-child{max-width:670px;color:var(--color-ink-secondary);margin-top:10px;line-height:1.75}.hexagram-browser{max-width:1080px;margin:0 auto 72px;padding:0 32px}.hexagram-browser-heading{max-width:680px}.hexagram-browser-heading h2{margin:0;font-size:30px;line-height:1.25}.hexagram-browser-heading p{color:var(--color-ink-secondary);margin-top:10px;line-height:1.75}.hexagram-browser-controls{grid-template-columns:minmax(0,1.5fr) minmax(220px,.8fr);gap:16px;margin-top:28px;display:grid}.hexagram-browser-controls label{color:var(--color-deep-jade);gap:8px;font-size:13px;font-weight:700;display:grid}.hexagram-browser-controls input,.hexagram-browser-controls select{border:1px solid var(--color-border);background:var(--color-elevated);width:100%;min-width:0;min-height:46px;color:var(--color-ink);font:inherit;border-radius:6px;padding:10px 12px;font-weight:400}.hexagram-browser-controls input:focus,.hexagram-browser-controls select:focus{border-color:var(--color-jade);outline:2px solid var(--color-jade)}@supports (color:color-mix(in lab, red, red)){.hexagram-browser-controls input:focus,.hexagram-browser-controls select:focus{outline:2px solid color-mix(in srgb, var(--color-jade) 24%, transparent)}}.hexagram-browser-controls input:focus,.hexagram-browser-controls select:focus{outline-offset:2px}.hexagram-browser-list{border-bottom:1px solid var(--color-border);margin:30px 0 0;padding:0;list-style:none}.hexagram-browser-list li{border-top:1px solid var(--color-border);color:var(--color-ink-secondary);justify-content:space-between;align-items:center;gap:18px;padding:15px 0;display:flex}.hexagram-browser-identity{flex-wrap:wrap;align-items:baseline;gap:7px;min-width:0;display:flex}.hexagram-browser-identity strong{min-width:2ch;color:var(--color-bronze);font-family:var(--font-editorial);font-size:18px;font-weight:400}.hexagram-browser-symbol{color:var(--color-ink);font-size:21px}.hexagram-browser-list a{color:var(--color-deep-jade);text-underline-offset:3px;flex:none;font-size:14px;font-weight:600;text-decoration:underline}.hexagram-browser-list a:hover{color:var(--color-vermilion)}.hexagram-browser-count{color:var(--color-muted);margin-top:14px;font-size:13px}@media (max-width:900px){.yi-section{grid-template-columns:1fr;gap:34px}.yi-header-inner,.yi-hero-inner,.yi-section,.yi-footer{padding-left:24px;padding-right:24px}.yi-continuity{padding:70px 24px}.reading-layout{gap:30px}}@media (max-width:650px){.yi-header-inner{gap:10px;min-height:64px;padding:10px 18px}.yi-brand{font-size:18px}.yi-header-nav{display:none}.yi-header-inner>:last-child{margin-left:auto}.yi-header-inner>:last-child ul{left:auto;right:0}.yi-hero-inner{padding:65px 18px 58px}.yi-hero h1{margin:21px 0;font-size:clamp(2.4rem,9vw,3rem)}.yi-hero-intro{margin-bottom:31px;font-size:17px}.home-ask-box textarea{min-height:150px;padding:19px;font-size:17px}.home-ask-actions{flex-direction:column;align-items:stretch}.home-ask-submit{align-self:flex-end}.yi-section{padding:65px 18px 72px}.yi-ways{grid-template-columns:1fr;gap:28px}.yi-ways h3{margin-top:14px}.yi-continuity{flex-direction:column;align-items:start;padding:65px 18px}.yi-footer{flex-direction:column;align-items:flex-start;padding:30px 18px}.reading-layout{grid-template-columns:1fr;gap:36px}.reading-main{order:-1}.reading-cast{position:static}.reading-takeaway{padding:23px 21px 25px}.reading-takeaway>p:last-child{font-size:19px}.reading-action{padding:21px}.explore-header{padding:13px 18px}.explore-page article{padding:62px 18px 75px}.explore-page h1{font-size:2.65rem}.explore-description{font-size:17px}.explore-direct-answer{margin-top:45px;padding:23px 21px}.explore-sections{margin-top:50px}.explore-sections section{grid-template-columns:42px 1fr;gap:10px}.explore-tool{flex-direction:column;align-items:start;padding:24px}.explore-cta{padding:35px 24px}.guide-header{min-height:64px;padding:10px 18px}.guide-header nav{gap:13px;font-size:12px}.guide-page>article{padding:62px 18px 76px}.guide-page h1{font-size:2.65rem}.guide-description{font-size:17px}.guide-direct-answer{margin-top:43px;padding:23px 21px}.guide-figure{margin-top:31px}.guide-body{margin-top:49px}.guide-cta{padding:34px 24px}.guide-index-hero{padding:64px 18px 51px}.guide-index-hero h1{font-size:2.65rem}.guide-index-list{padding:0 18px 76px}.guide-index-list article{grid-template-columns:42px 1fr;gap:10px}.hexagram-browser{margin-bottom:56px;padding:0 18px}.hexagram-browser-controls{grid-template-columns:1fr}.hexagram-browser-list li{flex-direction:column;align-items:flex-start;gap:7px}.hexagram-browser-list a{padding:2px 0}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.yi-hero-copy{z-index:1;width:57%;position:relative}.yi-crane-scene{pointer-events:none;mix-blend-mode:multiply;width:36%;position:absolute;top:115px;right:-24px}.yi-crane-hero{mix-blend-mode:multiply;-webkit-mask-composite:source-in;-webkit-mask-composite:source-in;width:100%;height:auto;display:block;transform:rotate(-12deg);-webkit-mask-image:linear-gradient(90deg,#0000,#000 3% 97%,#0000),linear-gradient(#0000,#000 2% 97%,#0000);mask-image:linear-gradient(90deg,#0000,#000 3% 97%,#0000),linear-gradient(#0000,#000 2% 97%,#0000);-webkit-mask-composite:source-in;mask-composite:intersect}.yi-cloud-connection{width:100%;height:100%;position:absolute;overflow:visible}.yi-cloud-connection path{stroke:var(--color-jade);stroke-width:1px;opacity:.22}@media (min-width:651px) and (max-width:1000px){.yi-hero-copy{width:60%}.yi-crane-scene{width:35%;top:130px;right:12px}.yi-crane-hero{transform:rotate(-22deg)}.yi-hero h1{font-size:clamp(2rem,4.3vw,2.8rem)}}@media (max-width:650px){.yi-header-inner>.yi-brand{margin-left:0}.yi-hero-inner{padding-top:38px;padding-bottom:42px}.yi-hero-copy{width:100%}.yi-hero h1{margin-block:20px;font-size:clamp(2.05rem,8.4vw,2.7rem)}.yi-hero-intro{margin-bottom:96px;font-size:16px;line-height:1.65}.yi-crane-scene{z-index:2;width:140px;top:auto;overflow:clip}.yi-hero-inner{display:grid}.yi-hero-copy{display:contents}.yi-crane-scene{grid-row:4;justify-self:end;height:96px;margin-top:-96px;position:relative;bottom:auto;right:0}.yi-crane-hero{width:112px;height:132px;margin-left:auto;transform:rotate(-35deg)}.yi-cloud-connection{height:132px}.home-ask-box{z-index:3;position:relative}.home-ask-box textarea{min-height:120px}.yi-privacy{font-size:12px;line-height:1.65}}.account-entry,.account-menu{color:var(--color-deep-jade);flex-shrink:0;font-size:14px}.account-entry,.account-menu summary{cursor:pointer;align-items:center;min-height:44px;display:flex}.account-menu{position:relative}.account-menu-panel{z-index:50;border:1px solid var(--color-border);background:var(--color-elevated);width:220px;padding:12px;position:absolute;top:100%;right:0;box-shadow:0 8px 24px #0001}.account-menu-panel a,.account-menu-panel button{text-align:left;width:100%;padding:12px;display:block}.account-page{max-width:780px;margin:0 auto;padding:48px 24px}.account-page h1{font-family:var(--font-editorial);margin-bottom:20px;font-size:clamp(28px,5vw,42px)}.account-page p{color:var(--color-ink-secondary);margin:12px 0}.account-page a{color:var(--color-deep-jade);text-underline-offset:4px;text-decoration:underline}.account-page button{background:var(--color-deep-jade);color:#fff;cursor:pointer;border-radius:6px;min-height:44px;padding:10px 20px}.account-page button:disabled{opacity:.6;cursor:wait}.auth-page{max-width:none;margin:0;padding:clamp(46px,6vw,78px) 24px 90px}.auth-layout{grid-template-columns:minmax(0,.9fr) minmax(390px,1fr);align-items:center;gap:clamp(48px,7vw,86px);max-width:980px;margin:0 auto;display:grid}.auth-context{max-width:420px;padding:18px 0}.auth-kicker{letter-spacing:.15em;text-transform:uppercase;font-size:12px;font-weight:700;color:var(--color-bronze)!important;margin:0 0 18px!important}.auth-context h2{font-family:var(--font-editorial);letter-spacing:-.035em;text-wrap:balance;margin:0;font-size:clamp(34px,4.5vw,50px);font-weight:400;line-height:1.08}.auth-context-copy{max-width:390px;font-size:16px;line-height:1.75;margin-top:22px!important}.auth-benefits{gap:14px;margin:28px 0 0;padding:0;list-style:none;display:grid}.auth-benefits li{color:var(--color-deep-jade);padding-left:26px;font-size:14px;line-height:1.65;position:relative}.auth-benefits li:before{content:"";border:1px solid var(--color-jade);width:9px;height:9px;box-shadow:inset 0 0 0 2px var(--color-paper);background:var(--color-jade);border-radius:50%;position:absolute;top:.62em;left:1px}.auth-privacy-note{border-top:1px solid var(--color-border);padding-top:20px;font-size:12px;line-height:1.65;color:var(--color-muted)!important;margin-top:28px!important}.auth-card{border:1px solid var(--color-border);background:var(--color-elevated);border-radius:18px;width:100%;padding:34px 34px 30px;box-shadow:0 18px 50px #273f3512}.auth-card-heading h1{margin:0;font-size:clamp(34px,4vw,44px);line-height:1.08}.auth-card-heading p{margin:12px 0 0;font-size:15px;line-height:1.65}.account-page .google-sign-in{border:1px solid var(--color-border);background:var(--color-paper);width:100%;min-height:50px;color:var(--color-ink);border-radius:8px;justify-content:center;align-items:center;gap:10px;margin:28px 0 0;font-weight:600;display:flex;box-shadow:0 1px #19191608}.account-page .google-sign-in:hover{border-color:var(--color-jade);background:var(--color-warm-paper)}.google-mark{border:1px solid var(--color-border);width:22px;height:22px;color:var(--color-deep-jade);background:#fff;border-radius:50%;place-items:center;font-size:12px;font-weight:800;display:inline-grid}.auth-divider{color:var(--color-muted);justify-content:center;align-items:center;margin:26px 0 24px;font-size:12px;display:flex;position:relative}.auth-divider:before{content:"";border-top:1px solid var(--color-border);inset-inline:0;position:absolute;top:50%}.auth-divider span{background:var(--color-elevated);padding:0 12px;position:relative}.auth-form{gap:18px;display:grid}.auth-form label{color:var(--color-ink);gap:8px;font-size:14px;font-weight:600;display:grid}.auth-page input{border:1px solid var(--color-border);background:var(--color-paper);width:100%;min-width:0;min-height:48px;color:var(--color-ink);font:inherit;border-radius:8px;padding:11px 13px;transition:border-color .15s,box-shadow .15s,background .15s}.auth-page input:hover{border-color:var(--color-jade)}@supports (color:color-mix(in lab, red, red)){.auth-page input:hover{border-color:color-mix(in srgb, var(--color-jade) 65%, var(--color-border))}}.auth-page input:focus{border-color:var(--color-jade);box-shadow:0 0 0 3px var(--color-jade);outline:none}@supports (color:color-mix(in lab, red, red)){.auth-page input:focus{box-shadow:0 0 0 3px color-mix(in srgb, var(--color-jade) 15%, transparent)}}.auth-page input:focus{background:#fff}.auth-field-hint{font-size:12px;color:var(--color-muted)!important;margin:-8px 0 0!important}.auth-error{border-left:3px solid var(--color-vermilion);background:var(--color-vermilion);padding:11px 13px;margin:0!important}@supports (color:color-mix(in lab, red, red)){.auth-error{background:color-mix(in srgb, var(--color-vermilion) 7%, var(--color-paper))}}.auth-error{font-size:13px;line-height:1.55;color:var(--color-vermilion)!important}.account-page .auth-submit{background:var(--color-deep-jade);border-radius:8px;width:100%;min-height:50px;margin-top:2px;font-weight:650}.account-page .auth-submit:hover{background:var(--color-ink)}.auth-switch{border-top:1px solid var(--color-border);text-align:center;padding-top:22px;font-size:14px;margin:24px 0 0!important}.auth-switch a{font-weight:650}.auth-page :focus-visible{outline:2px solid var(--color-jade);outline-offset:3px}@media (max-width:800px){.auth-page{padding:38px 20px 70px}.auth-layout{grid-template-columns:1fr;gap:36px;max-width:520px}.auth-card{order:1}.auth-context{order:2;max-width:none;padding:4px 4px 0}.auth-context h2{font-size:31px}}@media (max-width:520px){.auth-page{padding:24px 14px 56px}.auth-card{border-radius:14px;padding:27px 20px 24px}.auth-card-heading h1{font-size:34px}.auth-context{padding-inline:6px}}.history-list{margin:24px 0}.history-list li{border-bottom:1px solid var(--color-border);overflow-wrap:anywhere;padding:24px 0}.history-list li>a{font-size:20px}@media (max-width:650px){.yi-header-inner{flex-wrap:wrap}.yi-header-nav{order:3;justify-content:center;gap:24px;width:100%;display:flex}.yi-header-nav a{padding:8px 0}.yi-header-inner>.account-entry,.yi-header-inner>.account-menu{margin-left:auto}}.yi-header-nav{align-items:center}.breadcrumbs{color:var(--color-deep-jade);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:24px;font-size:13px;display:flex}.learn-category-links{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.learn-category-links a{border:1px solid var(--color-border);border-radius:4px;padding:12px 16px}.learn-category-links a[aria-current=page]{background:var(--color-warm-paper)}.learn-group-heading{max-width:1080px;margin:auto;padding:0 32px 20px}.learn-group-heading h2{font-size:32px}.learn-group-heading p{color:var(--color-ink-secondary);margin:12px 0}.learn-group .guide-index-list{padding-bottom:52px}.yi-ways article>a{color:var(--color-jade);margin-top:16px;display:inline-block}.account-avatar{background:var(--color-warm-paper);border-radius:50%;place-items:center;width:28px;height:28px;margin-right:8px;display:inline-grid}@media (max-width:650px){.yi-header-nav{justify-content:space-between;gap:18px}.learn-group-heading{padding-left:18px;padding-right:18px}}.yi-navigation{min-width:0;margin-left:auto}.yi-header-nav{gap:24px}.yi-menu-toggle{display:none}.yi-header :focus-visible,.yi-journey-card:focus-visible{outline:2px solid var(--color-jade);outline-offset:4px}.yi-journey-card{border:1px solid var(--color-border);min-width:0;padding:18px;display:block}.yi-journey-card:hover{background:var(--color-warm-paper)}.yi-journey-label{color:var(--color-jade);margin-top:16px;display:block}.guide-index{overflow-wrap:anywhere}.guide-index-hero h1{max-width:720px;font-size:clamp(2.5rem,5vw,4rem);line-height:1.08}.guide-index-hero>p:last-child{max-width:680px}.guide-index-list article>div{min-width:0}.learn-goals{max-width:1080px;margin:0 auto 64px;padding:0 32px}.learn-goals h2{font-size:24px}.learn-group{scroll-margin-top:24px}.learn-group-heading p{max-width:680px}.learn-view-all{flex-wrap:wrap;gap:20px;display:flex}.learn-preview{max-width:1080px;margin:0 auto;padding:0 32px 64px}.learn-featured{border:1px solid var(--color-border);padding:24px}.learn-featured h3{margin:10px 0;font-size:28px;line-height:1.25}.learn-featured p:last-child{max-width:680px;color:var(--color-ink-secondary);line-height:1.75}.learn-preview ul{margin-top:16px}.learn-preview li a{color:var(--color-deep-jade);text-underline-offset:4px;padding:10px 0;text-decoration:underline;display:inline-block}@media (max-width:800px){.yi-header-inner{flex-wrap:wrap;align-items:center}.yi-navigation{display:contents}.yi-menu-toggle{border:1px solid var(--color-border);min-height:44px;margin-left:auto;padding:8px 14px;display:block}.yi-header-nav{order:3;width:100%;display:none}.yi-header-nav[data-open=true]{flex-direction:column;align-items:stretch;gap:0;padding:8px 0;display:flex}.yi-header-nav>a,.yi-header-nav>.account-menu{min-height:44px;padding:12px}.yi-header-nav .account-menu-panel{position:static}}@media (max-width:650px){.learn-goals,.learn-preview{padding-left:18px;padding-right:18px}.learn-featured{padding:20px}.learn-featured h3{font-size:24px}}@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-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@keyframes pulse{50%{opacity:.5}}