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var(--color-border);padding-top:var(--space-24)}.article-metadata{align-items:baseline;gap:var(--gap-metadata);color:var(--color-text-muted);flex-wrap:wrap;display:flex}.article-metadata>time,.article-metadata>span{min-width:0}.pagination{justify-content:center;align-items:center;gap:var(--space-8);margin-top:var(--space-64);display:flex}.page-number,.page-arrow{width:var(--control-size);height:var(--control-size);font-size:var(--type-control-size);line-height:var(--type-control-leading);justify-content:center;align-items:center;display:inline-flex}.page-number.is-selected{color:var(--color-background);background:var(--color-text);font-weight:var(--weight-title);text-underline-offset:var(--space-4);text-decoration:underline}.page-number:hover:not(.is-selected),.page-arrow:hover{background:var(--color-surface)}.empty-state{align-items:flex-start;gap:var(--space-16);padding-block:var(--space-64);flex-direction:column;display:flex}.empty-state>.brand-symbol{margin-bottom:var(--space-8)}.empty-state>.text-link{margin-top:var(--space-8)}.breadcrumb{align-items:center;gap:var(--space-8);color:var(--color-text-muted);padding-top:var(--space-32);flex-wrap:wrap;display:flex}.breadcrumb-segment{align-items:center;gap:var(--space-8);min-width:0;display:inline-flex}.breadcrumb a:hover{color:var(--color-text);text-decoration:underline}.breadcrumb [aria-current]{color:var(--color-text)}.listing-page{gap:var(--space-32);flex-direction:column;display:flex}.page-heading{gap:var(--gap-title-summary);margin-block:var(--space-48);flex-direction:column;display:flex}.listing-page>.page-heading{padding-top:var(--space-16);margin:0}.subcategory-filters{gap:var(--space-32);border-bottom:var(--border-width) solid var(--color-border);scrollbar-width:thin;min-width:0;padding-inline:var(--space-4);display:flex;overflow-x:auto}.filter-link{padding-block:var(--space-12);font-size:var(--type-control-size);line-height:var(--type-control-leading);color:var(--color-text-muted);border-bottom:var(--focus-width) solid transparent;flex:none}.filter-link.is-selected{color:var(--color-link);border-color:var(--color-secondary);font-weight:var(--weight-title)}.filter-link:hover{color:var(--color-text)}.list-info{justify-content:space-between;align-items:center;gap:var(--space-16);border-top:var(--border-width) solid var(--color-text);padding-block:var(--space-16);margin-bottom:var(--space-16);display:flex}.listing-content{min-width:0;scroll-margin-top:var(--space-24)}.article-page{background:var(--color-paper);padding-bottom:var(--space-48)}.article-page .container{min-width:0}.nature-badge{padding:var(--space-4) var(--space-8);background:var(--color-secondary-soft);color:var(--color-link)}.article-heading{gap:var(--gap-title-summary);max-width:var(--article-heading-max);margin:var(--space-48) auto;flex-direction:column;display:flex}.article-heading-label{align-items:center;gap:var(--space-16);flex-wrap:wrap;display:flex}.article-heading>.article-metadata{margin-top:var(--space-16)}.article-heading>.sample-indicator{margin-top:calc(var(--space-8) * -1)}.article-feature>figcaption,.body-figure>figcaption{margin-top:var(--space-8)}.article-reading-column{max-width:var(--article-max);margin:var(--space-64) auto 0}.article-body{gap:var(--gap-block);font-size:var(--type-body-size);line-height:var(--type-body-leading);word-break:keep-all;overflow-wrap:anywhere;flex-direction:column;display:flex}.body-summary{padding:var(--space-24);background:var(--color-secondary-soft);border-top:var(--focus-width) solid var(--color-secondary)}.summary-label{font-weight:var(--weight-title);margin-bottom:var(--space-12)}.body-summary ul{padding-left:var(--space-24);margin:0;list-style:outside}.body-summary li+li{margin-top:var(--space-8)}.body-summary li::marker{color:var(--color-secondary)}.body-list{padding-left:var(--space-24);margin:0;list-style:outside}ol.body-list{list-style:decimal}.body-list>li+li{margin-top:var(--space-12)}.body-list>li::marker{font-weight:var(--weight-control)}.information-table{border-top:var(--border-width) solid var(--color-text)}.information-row{gap:var(--space-8);padding-block:var(--space-16);border-bottom:var(--border-width) solid var(--color-border);flex-direction:column;display:flex}.information-row dt{font-weight:var(--weight-control)}.information-row dd{color:var(--color-text-muted);margin:0}.comparison-block{min-width:0}.comparison-hint{margin-bottom:var(--space-12)}.comparison-scroll{scrollbar-width:thin;max-width:100%;overflow-x:auto}.comparison-table{width:100%;min-width:var(--table-min);border-collapse:collapse;font-size:var(--type-control-size);line-height:var(--type-control-leading)}.comparison-table caption{text-align:left;font-size:var(--type-meta-size);line-height:var(--type-meta-leading);padding-bottom:var(--space-12)}.comparison-table th,.comparison-table td{padding:var(--space-16);text-align:left;vertical-align:top;border-bottom:var(--border-width) solid var(--color-border)}.comparison-table th{font-weight:var(--weight-control)}.comparison-table thead{background:var(--color-surface);border-top:var(--border-width) solid var(--color-text)}.body-notice{padding:var(--space-24);border-left:var(--focus-width) solid var(--color-focus);background:var(--color-info-soft)}.body-notice--caution{border-left-color:var(--color-caution);background:var(--color-caution-soft)}.notice-label{margin-bottom:var(--space-8);font-weight:var(--weight-title)}.body-notice--caution .notice-label{color:var(--color-caution)}.body-quote{border-left:var(--focus-width) solid var(--color-accent);padding-left:var(--space-24);gap:var(--space-12);flex-direction:column;display:flex}.nature-label{padding:var(--space-16);background:var(--color-surface)}.source-links{gap:var(--space-24);margin-top:var(--space-48);padding-top:var(--space-32);border-top:var(--border-width) solid var(--color-border);flex-direction:column;display:flex}.source-item{align-items:flex-start;gap:var(--space-4);flex-direction:column;min-width:0;display:flex}.source-link{align-items:baseline;gap:var(--space-8);overflow-wrap:anywhere;max-width:100%;display:inline-flex}.source-link .icon{align-self:center}.source-link,.source-url{color:var(--color-link);text-underline-offset:var(--space-4);text-decoration:underline}.source-link:hover,.source-url:hover{color:var(--color-text)}.source-dates{gap:var(--space-8) var(--space-16);flex-wrap:wrap;display:flex}.article-revisions{gap:var(--space-16);border-top:var(--border-width) solid var(--color-border);margin-top:var(--space-32);padding-top:var(--space-24);flex-direction:column;display:flex}.article-tags{gap:var(--space-8) var(--space-16);margin-top:var(--space-32);flex-wrap:wrap;display:flex}.tag-link{min-height:var(--control-size);color:var(--color-link);text-underline-offset:var(--space-4);align-items:center;text-decoration:underline;display:inline-flex}.related-basis{margin-bottom:var(--space-24)}.source-url{word-break:break-all;max-width:100%}.back-link{align-items:center;gap:var(--space-12);border-top:var(--border-width) solid var(--color-border);border-bottom:var(--border-width) solid var(--color-border);margin-top:var(--space-48);padding-block:var(--space-24);font-weight:var(--weight-control);display:flex}.back-link:hover{color:var(--color-accent)}.search-dialog{width:min(calc(100% - var(--space-48)), var(--article-max));max-height:calc(100dvh - var(--space-48));color:var(--color-text);background:var(--color-paper);border:var(--border-width) solid var(--color-border);margin:auto;padding:0;position:fixed;inset:0;overflow-y:auto}.search-dialog::backdrop{background:var(--color-backdrop)}.search-dialog-content{padding:var(--space-24)}.search-dialog-heading{justify-content:space-between;align-items:center;gap:var(--space-16);display:flex}.search-form{align-items:center;gap:var(--space-8);margin-top:var(--space-24);border-bottom:var(--border-width) solid var(--color-text);display:flex}.search-form input{width:100%;min-width:0;padding-block:var(--space-16);font-size:var(--type-summary-size);line-height:var(--type-summary-leading);background:0 0;border:none}.search-form input::placeholder{color:var(--color-text-muted)}.search-feedback{margin-top:var(--space-32)}.search-feedback>.text-link{margin-top:var(--space-24)}.search-suggestions{gap:var(--space-8);margin-top:var(--space-16);flex-wrap:wrap;display:flex}.thumbnail-item{grid-template-columns:var(--space-96) minmax(0, 1fr) var(--icon-small-size);align-items:center;gap:var(--space-16);padding-block:var(--space-16);border-bottom:var(--border-width) solid var(--color-border);display:grid}.thumbnail-item--text{grid-template-columns:minmax(0, 1fr) var(--icon-small-size)}.thumbnail-content{gap:var(--space-4);flex-direction:column;min-width:0;display:flex}.thumbnail-item:hover h3{text-decoration:underline;text-decoration-thickness:var(--border-width);text-underline-offset:var(--space-4)}.site-footer{border-top:var(--border-width) solid var(--color-text);padding-top:var(--space-48);margin-top:var(--gap-section)}.footer-main{gap:var(--space-32);flex-direction:column;align-items:flex-start;display:flex}.footer-brand{align-items:center;gap:var(--space-16);flex:none;display:flex}.footer-links{gap:var(--space-16);font-size:var(--type-control-size);line-height:var(--type-control-leading);flex-direction:column;display:flex}.footer-links>a{justify-content:space-between;align-items:center;gap:var(--space-32);display:flex}.footer-links>a:hover{color:var(--color-accent)}.footer-bottom{align-items:flex-start;gap:var(--space-8);margin-top:var(--space-48);border-top:var(--border-width) solid var(--color-border);padding-block:var(--space-24);flex-direction:column;display:flex}.footer-statement{overflow-wrap:anywhere;max-width:100%}.footer-copyright{max-width:100%;padding-bottom:var(--space-24);color:var(--color-text-muted);font-size:var(--type-meta-size);line-height:var(--type-meta-leading);overflow-wrap:anywhere;margin:0}.back-to-top{font-size:var(--type-meta-size);line-height:var(--type-meta-leading);font-weight:var(--weight-body);padding-inline:0}.about-page>.page-heading{max-width:var(--article-max)}.about-categories{gap:var(--space-16) var(--space-32);margin-top:var(--space-32);flex-wrap:wrap;display:flex}.doc-section{gap:var(--space-24);border-top:var(--border-width) solid var(--color-border);padding-top:var(--space-32);flex-direction:column;display:flex}.doc-section+.doc-section{margin-top:var(--space-48)}.spec-table-wrap{max-width:100%}.spec-table{table-layout:fixed;border-collapse:collapse;width:100%;font-size:var(--type-meta-size);line-height:var(--type-meta-leading);overflow-wrap:anywhere;word-break:keep-all}.spec-table th,.spec-table td{padding:var(--space-16) var(--space-12);text-align:left;vertical-align:top;border-bottom:var(--border-width) solid var(--color-border)}.spec-table th{font-weight:var(--weight-control)}.spec-table thead{background:var(--color-surface)}.spec-table tbody td{color:var(--color-text-muted)}.color-grid{gap:var(--space-24);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.color-swatch{gap:var(--space-8);flex-direction:column;min-width:0;display:flex}.swatch-color{height:var(--space-96);border:var(--border-width) solid var(--color-border);background:var(--swatch-color);margin-bottom:var(--space-4)}.color-swatch--background{--swatch-color:var(--color-background)}.color-swatch--text{--swatch-color:var(--color-text)}.color-swatch--text-muted{--swatch-color:var(--color-text-muted)}.color-swatch--border{--swatch-color:var(--color-border)}.color-swatch--surface{--swatch-color:var(--color-surface)}.color-swatch--accent{--swatch-color:var(--color-accent)}.color-swatch--paper{--swatch-color:var(--color-paper)}.color-swatch--secondary{--swatch-color:var(--color-secondary)}.color-swatch--secondary-soft{--swatch-color:var(--color-secondary-soft)}.color-swatch--info-soft{--swatch-color:var(--color-info-soft)}.color-swatch--caution-soft{--swatch-color:var(--color-caution-soft)}.color-swatch--link{--swatch-color:var(--color-link)}.color-swatch--focus{--swatch-color:var(--color-focus)}.color-swatch--error{--swatch-color:var(--color-error)}.spacing-scale{gap:var(--space-12);flex-direction:column;display:flex}.spacing-item{align-items:center;gap:var(--space-16);display:flex}.spacing-item>:first-child{width:var(--space-24)}.spacing-bar{background:var(--color-text);height:var(--space-8);display:block}.spacing-bar[data-space="4"]{width:var(--space-4)}.spacing-bar[data-space="8"]{width:var(--space-8)}.spacing-bar[data-space="12"]{width:var(--space-12)}.spacing-bar[data-space="16"]{width:var(--space-16)}.spacing-bar[data-space="24"]{width:var(--space-24)}.spacing-bar[data-space="32"]{width:var(--space-32)}.spacing-bar[data-space="48"]{width:var(--space-48)}.spacing-bar[data-space="64"]{width:var(--space-64)}.spacing-bar[data-space="96"]{width:var(--space-96)}.component-card-grid{gap:var(--space-32);grid-template-columns:minmax(0,1fr);display:grid}.component-card-grid 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var(--space-32))}.qa-cover-heading{min-width:0}.qa-reading-column{max-width:var(--article-max);width:100%}.form-field{gap:var(--space-8);flex-direction:column;min-width:0;display:flex}.field-label{align-items:center;gap:var(--space-8);font-weight:var(--weight-control);flex-wrap:wrap;display:flex}.field-required{color:var(--color-text-muted);font-size:var(--type-meta-size);font-weight:var(--weight-body)}.form-control{width:100%;min-width:0;max-width:100%;min-height:var(--control-size);padding:var(--space-12);border:var(--border-width) solid var(--color-control-border);background:var(--color-paper);font-size:var(--type-control-size);line-height:var(--type-control-leading);display:block}.form-control::placeholder{color:var(--color-text-muted)}.form-control[aria-invalid=true]{border-color:var(--color-error)}.form-control:disabled{background:var(--color-surface);color:var(--color-text-muted)}.form-textarea{resize:vertical;min-height:var(--space-96)}.field-error{color:var(--color-error)}.shared-notice{align-items:flex-start;gap:var(--space-12);padding:var(--space-16);background:var(--color-info-soft);border-left:var(--focus-width) solid var(--color-focus);display:flex}.shared-notice>.icon{margin-top:var(--space-4)}.shared-notice>div{min-width:0}.shared-notice .type-control{font-weight:var(--weight-control)}.notice-content{margin-top:var(--space-4);color:var(--color-text-muted);overflow-wrap:anywhere}.shared-notice--caution{background:var(--color-caution-soft);border-color:var(--color-caution)}.shared-notice--caution>.icon{color:var(--color-caution)}.shared-notice--error{background:var(--color-paper);border:var(--border-width) solid var(--color-error);color:var(--color-error)}.shared-notice--success{background:var(--color-secondary-soft);border-color:var(--color-secondary)}.shared-notice--success>.icon{color:var(--color-link)}.shared-notice--neutral,.shared-notice--loading{background:var(--color-surface);border-color:var(--color-control-border)}.shared-dialog{width:min(calc(100% - var(--space-32)), var(--article-max));max-height:calc(100dvh - var(--space-32));background:var(--color-paper);color:var(--color-text);border:var(--border-width) solid var(--color-border);box-shadow:var(--shadow);margin:auto;padding:0;position:fixed;inset:0;overflow-y:auto}.shared-dialog::backdrop{background:var(--color-backdrop)}.dialog-content{gap:var(--space-24);padding:var(--space-24);flex-direction:column;display:flex}.dialog-heading,.dialog-actions{justify-content:space-between;align-items:center;gap:var(--space-16);display:flex}.dialog-heading>h2{min-width:0}.dialog-actions{flex-wrap:wrap;justify-content:flex-end}.dialog-form{gap:var(--space-24);flex-direction:column;min-width:0;display:flex}.search-input-row{align-items:stretch;gap:var(--space-8);display:flex}.search-input-row>.button{flex:none}.listing-search{max-width:var(--article-max);width:100%}.listing-search>.text-link{margin-top:var(--space-8)}@media (width>=768px){.home-category-index{justify-content:space-between;align-items:center;gap:var(--space-32);flex-direction:row}.header-row{gap:var(--space-32);min-height:calc(var(--space-96) + var(--space-16));padding-block:var(--space-24)}.brand:not(.brand--footer){--brand-wordmark-width:calc(var(--space-96) * 2)}.brand-identity{grid-template-columns:repeat(2,minmax(0,1fr))}.brand-identity-visual,.brand-identity-copy{padding:var(--space-48)}.masthead-note{display:flex}.cover-bottom{gap:var(--space-32)}.cover-content{padding-block:var(--space-16)}.information-row{gap:var(--space-24);grid-template-columns:minmax(0,1fr) minmax(0,3fr);display:grid}.search-dialog-content{padding:var(--space-32)}.footer-main{justify-content:space-between;gap:var(--space-48);flex-flow:wrap}.footer-statement{margin-left:auto}.footer-bottom{justify-content:space-between;align-items:center;gap:var(--space-16) var(--space-24);flex-flow:wrap}.color-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.component-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=1024px){.header-row{gap:var(--space-48)}.desktop-navigation{margin-inline:auto}.masthead-english{letter-spacing:var(--tracking-label);display:block}.cover-content{padding-block:var(--space-24);padding-right:var(--space-32);grid-column:span 7}.cover-figure{grid-column:span 5}.editorial-media img{object-position:var(--crop-desktop)}.home-cover--text .cover-content{grid-column:1/-1}.cover-kicker{margin-bottom:var(--space-48)}.cover-bottom{margin-top:var(--space-48)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important}}@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-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}@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}