/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */
@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-border-style:solid;--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;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:-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-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--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]){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;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}.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}.container{width:100%}@media (width>=40rem){.container{max-width:40rem}}@media (width>=48rem){.container{max-width:48rem}}@media (width>=64rem){.container{max-width:64rem}}@media (width>=80rem){.container{max-width:80rem}}@media (width>=96rem){.container{max-width:96rem}}.mt-3{margin-top:calc(var(--spacing) * 3)}.mt-4{margin-top:calc(var(--spacing) * 4)}.block{display:block}.contents{display:contents}.flex{display:flex}.grid{display:grid}.hidden{display:none}.inline{display:inline}.inline-block{display:inline-block}.inline-flex{display:inline-flex}.table{display:table}.size-10{width:calc(var(--spacing) * 10);height:calc(var(--spacing) * 10)}.h-103180{height:calc(var(--spacing) * 103180)}.h-103181{height:calc(var(--spacing) * 103181)}.h-103226{height:calc(var(--spacing) * 103226)}.h-103250{height:calc(var(--spacing) * 103250)}.h-103269{height:calc(var(--spacing) * 103269)}.h-103270{height:calc(var(--spacing) * 103270)}.h-103295{height:calc(var(--spacing) * 103295)}.h-103309{height:calc(var(--spacing) * 103309)}.h-103326{height:calc(var(--spacing) * 103326)}.h-103344{height:calc(var(--spacing) * 103344)}.h-103358{height:calc(var(--spacing) * 103358)}.h-103366{height:calc(var(--spacing) * 103366)}.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,)}.resize{resize:both}.rounded{border-radius:.25rem}.border{border-style:var(--tw-border-style);border-width:1px}.px-2{padding-inline:calc(var(--spacing) * 2)}.pt-4{padding-top:calc(var(--spacing) * 4)}.pr-0{padding-right:0}.pb-0{padding-bottom:0}.pb-2{padding-bottom:calc(var(--spacing) * 2)}.pb-3{padding-bottom:calc(var(--spacing) * 3)}.pb-4{padding-bottom:calc(var(--spacing) * 4)}.pl-0{padding-left:0}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.italic{font-style:italic}.shadow{--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)}.ring{--tw-ring-shadow:var(--tw-ring-inset,) 0 0 0 calc(1px + 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)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.blur{--tw-blur:blur(8px);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,)}.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,)}.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,)!important}.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))}}:root{--canvas:#f7f8f4;--surface:#fff;--ink:#1e302d;--muted:#536663;--accent:#176b5b;--accent-hover:#105345;--subtle:#eaf1ec;--line:#cad5ce;--control:#71817c;--warning:#8c4f00;--warning-bg:#fff5dd;color:var(--ink);background:var(--canvas);font-synthesis:none;font-family:Inter,Segoe UI,Microsoft YaHei,PingFang SC,sans-serif;font-size:18px;line-height:1.85}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body,h1,h2,h3,p,ol,ul,dl,figure{margin:0}h1,h2,h3{text-wrap:pretty;font-weight:650;line-height:1.4}h1{letter-spacing:-.025em;font-size:40px}h2{font-size:27px}h3{font-size:21px}p{overflow-wrap:anywhere}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}button,summary{cursor:pointer}button{color:inherit}input,select{background:var(--surface);min-width:0;color:var(--ink);border:1px solid var(--control);border-radius:5px;min-height:50px;padding:10px 14px;line-height:1.4}input::placeholder{color:var(--muted);opacity:1}select{width:100%;padding-right:28px}button:disabled{cursor:default;opacity:.65}:focus-visible{outline:3px solid var(--accent);outline-offset:4px}img{max-width:100%;height:auto}svg{max-width:100%}section[id],li[id]{scroll-margin-top:28px}.shell{max-width:1200px;margin-inline:auto;padding-inline:36px}.muted,.english{color:var(--muted)}.english{overflow-wrap:anywhere;font-size:15px;line-height:1.6}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:99;background:var(--surface);border:2px solid var(--accent);padding:10px 16px;position:fixed;top:8px;left:16px;transform:translateY(-160%)}.skip-link:focus{transform:none}.button{text-align:center;border:1px solid #0000;border-radius:5px;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:10px 20px;font-size:16px;font-weight:600;line-height:1.5;display:inline-flex}.primary{background:var(--accent);color:#fff}.primary:hover{background:var(--accent-hover);color:#fff}.secondary{background:var(--surface);border-color:var(--control);color:var(--accent)}.quiet{color:var(--accent);text-underline-offset:5px;background:0 0;text-decoration:underline}.text-link{min-height:44px;color:var(--accent);align-items:center;font-size:16px;font-weight:600;display:inline-flex}.text-link:hover{text-underline-offset:5px;text-decoration:underline}.site-header{background:var(--surface);border-bottom:1px solid var(--line)}.header-row{align-items:center;gap:28px;min-height:90px;display:flex}.brand{white-space:nowrap;align-items:baseline;gap:17px;margin-right:auto;display:flex}.brand strong{letter-spacing:-1px;font-size:29px;font-weight:750}.brand-dot{color:var(--accent)}.brand>span{color:var(--muted);letter-spacing:1px;font-size:13px}.desktop-nav{gap:25px;font-size:15px;display:flex}.desktop-nav a,.language-switch{align-items:center;min-height:44px;display:inline-flex}.language-switch{border-left:1px solid var(--line);color:var(--accent);padding-left:26px;font-size:15px}.site-menu{display:none}.preview-strip{background:var(--subtle);color:#36564d;font-size:13px}.preview-strip .shell{justify-content:space-between;gap:16px;padding-block:8px;display:flex}.site-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:90px;padding:44px 0 50px}.footer-row{justify-content:space-between;gap:30px;display:flex}.footer-brand{color:var(--ink);font-size:23px;font-weight:750}.footer-row p{margin-top:12px;font-size:13px;line-height:1.9}.footer-row nav{align-items:flex-start;gap:26px;font-size:14px;display:flex}.footer-row nav a{align-items:center;min-height:44px;display:inline-flex}.eyebrow{color:var(--accent);letter-spacing:.1em;margin-bottom:16px;font-size:14px}.home-hero h1{letter-spacing:-.035em;max-width:820px;font-size:52px;line-height:1.4}.hero-intro{color:var(--muted);margin-top:22px;font-size:19px}.home-search{max-width:750px;margin-top:32px}.search-input-row{gap:10px;display:flex}.search-input-row input{flex:1;width:100%;min-height:56px;padding:14px 18px}.search-input-row .button{min-width:110px}.home-search p{color:var(--muted);margin-top:10px;font-size:13px}.section-heading{justify-content:space-between;align-items:baseline;gap:18px;display:flex}.section-heading p{color:var(--muted);font-size:13px}.browse-section{border-bottom:1px solid var(--line);padding-bottom:36px}.country-links{border-block:1px solid var(--line);grid-template-columns:repeat(4,1fr);margin-top:23px;display:grid}.country-links a{border-right:1px solid var(--line);align-items:center;gap:14px;padding:21px 20px;font-size:19px;display:flex}.country-links a:first-child{padding-left:0}.country-links a:last-child{border-right:0}.country-links a>span:last-child{color:var(--muted);margin-left:auto}.country-code{letter-spacing:.08em;color:var(--accent);font-size:13px;font-weight:700}.country-links a:hover{background:var(--subtle)}.topic-links{flex-wrap:wrap;gap:38px;margin-top:18px;display:flex}.topic-links a{min-height:46px;color:var(--accent);align-items:center;gap:35px;font-size:17px;display:flex}.method-section{border-block:1px solid var(--line);margin-top:64px;padding:32px 0 40px}.method-section ol{grid-template-columns:repeat(3,1fr);gap:40px;margin-top:26px;padding:0;list-style:none;display:grid}.step-index{color:var(--accent);letter-spacing:.1em;margin-bottom:12px;font-size:14px;display:block}.method-section p{color:var(--muted);margin-top:9px;font-size:15px;line-height:1.9}.home-guides>.muted{margin-top:10px;font-size:14px}.guide-row{border-bottom:1px solid var(--line);max-width:940px;padding:27px 0 28px}.guide-row-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:15px;font-size:13px;line-height:1.5;display:flex}.status-badge{background:var(--warning-bg);color:var(--warning);border-radius:3px;padding:4px 9px;font-size:12px}.guide-row h2,.guide-row h3{margin:12px 0 5px;font-size:23px;line-height:1.5}.guide-row h2 a:hover,.guide-row h3 a:hover{text-underline-offset:5px;text-decoration:underline}.guide-row>p:not(.english){color:var(--muted);margin-top:12px;font-size:16px;line-height:1.8}.guide-row>.text-link{margin-top:10px}.breadcrumbs{color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;padding-block:26px 28px;font-size:13px;line-height:1.6;display:flex}.breadcrumbs a{align-items:center;min-height:32px;display:inline-flex}.list-page{max-width:1030px;padding-bottom:20px}.page-intro{color:var(--muted);margin:13px 0 30px;font-size:17px}.search-form>label{margin-bottom:9px;font-size:15px;display:block}.filter-bar{border-bottom:1px solid var(--line);align-items:flex-end;gap:18px;padding:23px 0 27px;display:flex}.filter-bar>label{color:var(--muted);flex:1;font-size:13px;display:block}.filter-bar select{margin-top:7px;font-size:15px;display:block}.filter-bar>.quiet{white-space:nowrap;padding-inline:5px;font-weight:400}.result-count{color:var(--muted);margin:22px 0 0;font-size:14px}.empty-state{text-align:center;max-width:600px;margin:auto;padding:62px 20px}.empty-state>span{color:var(--accent);font-size:40px}.empty-state h2{margin:12px 0;font-size:25px}.empty-state p{color:var(--muted);margin-bottom:22px;font-size:16px}.empty-state>a{min-height:44px;color:var(--accent);margin-top:16px;font-size:15px;display:block}.reader-layout{grid-template-columns:220px minmax(0,792px);align-items:start;gap:44px;display:grid}.article-heading h1{margin:15px 0 12px;font-size:39px;line-height:1.5}.article-heading>.english{margin-bottom:20px}.article-summary{color:var(--muted);font-size:18px}.guide-metadata{color:var(--muted);flex-wrap:wrap;gap:14px 26px;margin:24px 0;font-size:13px;line-height:1.7;display:flex}.guide-metadata>div{gap:10px;display:flex}.guide-metadata dd{color:var(--ink);margin:0}.notice{background:var(--warning-bg);color:#644113;border-left:3px solid #b07121;padding:19px 22px;font-size:15px;line-height:1.8}.notice p{margin-top:9px}.notice strong{font-weight:600}.official-link{margin-top:22px}.article-section{border-top:1px solid var(--line);margin-top:48px;padding-top:28px}.section-number{color:var(--accent);letter-spacing:.08em;margin-bottom:7px;font-size:14px;font-weight:600}.article-section h2{margin-bottom:19px;font-size:28px}.article-section>p{margin-bottom:20px;line-height:1.95}.annotation-figure{background:var(--surface);border:1px solid var(--line);border-radius:7px;margin-top:26px;overflow:hidden}.figure-label{color:var(--muted);border-bottom:1px solid var(--line);background:#f0f3f0;padding:11px 17px;font-size:13px}.static-image-wrap{line-height:0;position:relative}.static-image-wrap img{width:100%;height:auto;display:block}.static-overlay{pointer-events:none;width:100%;height:100%;position:absolute;inset:0}.annotation-figure figcaption{color:var(--muted);border-top:1px solid var(--line);padding:10px 17px;font-size:12px}.figure-actions{flex-wrap:wrap;align-items:center;gap:12px 20px;margin-top:14px;display:flex}.figure-actions>a,.export-links>a{min-height:44px;color:var(--accent);text-underline-offset:4px;align-items:center;font-size:14px;text-decoration:underline;display:inline-flex}.figure-fallback{color:var(--muted);margin-top:8px;font-size:13px}.field-explanations{grid-template-columns:1fr;gap:26px;margin-top:28px;padding:0;list-style:none;display:grid}.field-explanations.short-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.field-explanation{border-top:1px solid var(--line);padding:24px 0 0}.field-explanation h3{align-items:flex-start;gap:10px;margin-bottom:15px;font-size:21px;display:flex}.field-number{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:29px;height:29px;font-size:16px;line-height:1;display:inline-flex}.field-english{flex-direction:column;margin-bottom:13px;line-height:1.7;display:flex}.field-english>span{color:var(--muted);font-size:12px}.field-english>strong{overflow-wrap:anywhere;font-size:17px;font-weight:600}.field-explanation>p:not(.field-english){margin-top:12px;font-size:16px;line-height:1.9}.field-explanation .field-basis{color:var(--muted);font-size:13px!important}.export-links{flex-wrap:wrap;gap:22px;margin-top:26px;display:flex}.source-list{padding-left:24px}.source-list li{margin-top:12px}.source-list a{color:var(--accent);text-underline-offset:5px;overflow-wrap:anywhere;font-size:16px;text-decoration:underline}.source-list span:not(.sr-only){color:var(--muted);font-size:13px;display:block}.related-guides{border-top:1px solid var(--line);margin-top:65px;margin-left:264px;padding-top:27px}.related-guides h2{font-size:24px}.prose-page>h1{margin:14px 0 25px}.prose-page>p{margin-bottom:25px}.prose-page>section{border-top:1px solid var(--line);margin-top:44px;padding-top:27px}.prose-page h2{margin-bottom:17px}.prose-page section p+p{margin-top:15px}@media (width>=1500px){.shell{padding-inline:0}}.language-switch{justify-content:center;min-width:44px}@media (width<=1023px){.reader-layout{display:block}.related-guides{margin-left:0}.reading-page .site-footer{padding-bottom:110px}}@media (width<=1000px){.brand>span{display:none}.reader-layout{grid-template-columns:180px minmax(0,1fr);gap:30px}.home-hero h1{font-size:46px}.country-links a{gap:8px;padding-inline:13px}.field-explanations.short-fields{grid-template-columns:1fr}.article-heading h1{font-size:34px}}@media (width<=767px){:root{font-size:18px}.shell{padding-inline:22px}.header-row{gap:18px;min-height:72px}.brand strong{font-size:27px}.desktop-nav{display:none}.language-switch{border:0;margin-left:auto;padding:0}.site-menu{display:block;position:relative}.site-menu summary{justify-content:center;align-items:center;min-width:44px;min-height:44px;font-size:24px;list-style:none;display:flex}.site-menu summary::-webkit-details-marker{display:none}.site-menu nav{background:var(--surface);z-index:10;border:1px solid var(--line);border-radius:5px;width:190px;padding:9px 15px;position:absolute;top:53px;right:0;box-shadow:0 9px 22px #1e302d14}.site-menu a{align-items:center;min-height:48px;font-size:16px;display:flex}.preview-strip{font-size:11px}.preview-strip .shell{gap:8px;padding-block:7px}.home-hero{padding-top:43px;padding-bottom:44px}.eyebrow{margin-bottom:14px;font-size:12px}.home-hero h1{font-size:32px;line-height:1.5}.hero-intro{margin-top:18px;font-size:17px;line-height:1.9}.home-search{margin-top:25px}.search-input-row{gap:8px}.search-input-row input{min-height:52px;padding-inline:12px;font-size:15px}.search-input-row .button{min-width:74px;padding-inline:14px}.home-search p{font-size:12px}.section-heading{display:block}.section-heading h2,.topic-section h2,.method-section h2,.home-guides h2{font-size:23px}.section-heading p{margin-top:8px;font-size:12px}.country-links{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:19px}.country-links a{padding:19px 14px;font-size:17px}.country-links a:nth-child(2){border-right:0}.country-links a:nth-child(3),.country-links a:nth-child(4){border-top:1px solid var(--line)}.country-links a:nth-child(3){padding-left:0}.browse-section{padding-bottom:27px}.topic-section{padding-top:27px}.topic-links{gap:8px;margin-top:14px;display:block}.topic-links a{border-bottom:1px solid var(--line);justify-content:space-between;padding-block:11px;font-size:16px}.method-section{margin-top:39px;padding:28px 0}.method-section ol{grid-template-columns:1fr;gap:25px;margin-top:23px}.method-section li{padding-left:45px;position:relative}.step-index{position:absolute;top:2px;left:0}.method-section h3{font-size:18px}.method-section p{font-size:15px}.home-guides{margin-top:36px}.home-guides .section-heading{align-items:baseline;display:flex}.guide-row{padding-block:24px}.guide-row h2,.guide-row h3{font-size:21px}.guide-row-meta{gap:10px;font-size:12px}.guide-row>p:not(.english){font-size:15px}.breadcrumbs{gap:8px;padding-block:20px;font-size:12px}.list-page h1,.prose-page h1{font-size:30px}.page-intro{margin-bottom:23px;font-size:16px}.filter-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.filter-bar label{font-size:12px}.filter-bar select{font-size:14px}.filter-bar>.quiet{align-self:end;min-height:50px}.empty-state{padding:40px 0}.reader-layout{display:block}.article-heading h1{margin-top:14px;font-size:30px;line-height:1.55}.article-summary{font-size:17px}.guide-metadata{gap:9px 20px;margin:21px 0}.notice{padding:16px 17px;font-size:14px}.official-link{width:100%;margin-top:20px}.article-section{margin-top:35px;padding-top:23px}.article-section h2{font-size:25px}.article-section>p{font-size:18px}.annotation-figure{margin-top:20px}.figure-label{padding:9px 12px;font-size:11px}.annotation-figure figcaption{padding:8px 12px;font-size:11px}.field-explanations.short-fields{grid-template-columns:1fr}.field-explanation h3{font-size:21px}.field-explanation>p:not(.field-english){font-size:17px}.figure-actions{gap:8px 15px}.figure-fallback{font-size:12px}.related-guides{margin-top:40px;margin-left:0}.prose-page{padding-top:34px}.prose-page>section{margin-top:32px}.site-footer{margin-top:54px;padding:30px 0}.footer-row{display:block}.footer-row nav{gap:24px;margin-top:20px}.reading-page .site-footer{padding-bottom:110px}}@media (width<=359px){.shell{padding-inline:16px}.preview-strip .shell>span{display:none}.home-hero h1{font-size:29px}.header-row{gap:12px}.article-heading h1{font-size:28px}.country-links a{padding-right:10px;font-size:16px}.guide-metadata{display:block}.guide-metadata>div{margin-top:5px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}:root{font-family:Segoe UI,Microsoft YaHei,PingFang SC,sans-serif}.header-row{min-height:100px}.brand{flex-direction:column;align-items:flex-start;gap:3px;line-height:1.2;display:flex}.brand strong{letter-spacing:-1.2px;font-size:38px}.brand>span{letter-spacing:.12em;font-size:14px}.desktop-nav,.language-switch{font-size:17px}.preview-strip{font-size:14px}.home-hero{max-width:none;padding-top:50px;padding-bottom:48px}.home-hero h1{max-width:none;font-size:64px;line-height:1.3}.hero-intro{margin-top:20px;font-size:22px;line-height:1.8}.home-search{width:100%;max-width:none;margin-top:30px}.home-search .search-input-row{gap:0}.home-search input{border-color:var(--accent);border-radius:7px 0 0 7px;min-height:70px;padding:16px 22px;font-size:20px}.home-search .button{border-radius:0 7px 7px 0;min-width:150px;min-height:70px;font-size:20px}.home-search p{font-size:16px}.section-heading h2,.topic-section h2,.method-section h2,.home-guides h2{font-size:32px}.section-heading p,.home-guides>.muted{font-size:15px}.browse-section{border:0;padding-bottom:24px}.country-links{margin-top:19px}.country-links a{min-height:78px;padding:20px 30px;font-size:21px;font-weight:600}.country-code{display:none}.country-links a>span:last-child{color:var(--accent)}.topic-section{padding-top:8px}.topic-links{border-block:1px solid var(--line);grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin-top:19px;display:grid}.topic-links a{border-right:1px solid var(--line);justify-content:space-between;gap:12px;min-height:78px;padding:20px 30px;font-size:20px;font-weight:600}.topic-links a:first-child{padding-left:0}.topic-links a:last-child{border:0}.method-section{margin-top:40px;padding:28px 0 32px}.method-section ol{gap:0;margin-top:26px}.method-section li{border-right:1px solid var(--line);grid-template-columns:50px minmax(0,1fr);column-gap:16px;padding-left:28px;padding-right:24px;display:grid}.method-section li:first-child{padding-left:0}.method-section li:last-child{border:0}.step-index{grid-row:1/3;margin:0;font-size:32px;font-weight:650;line-height:1.2}.method-section h3{font-size:21px}.method-section p{grid-column:2;margin-top:9px;font-size:17px;line-height:1.85}.home-guides{margin-top:34px}.home-guides .section-heading{border-bottom:1px solid var(--line);padding-bottom:14px}.guide-row{max-width:none}.guide-row-compact{grid-template-columns:140px minmax(0,1fr) auto;align-items:center;gap:18px;padding:20px 0;display:grid}.guide-row-compact h3{margin:0 0 5px;font-size:22px}.guide-row-compact>.text-link{white-space:nowrap;margin:0}.guide-row-compact .english{font-size:16px}.status-badge{font-size:13px}.guide-summary{color:var(--muted);margin-top:12px;font-size:18px;line-height:1.85}.list-page{max-width:1200px}.list-page h1{font-size:44px}.page-intro{font-size:18px}.filter-bar select{font-size:17px}.guide-row h2{font-size:26px}.guide-row>p:not(.english){font-size:18px}.guide-row-meta{font-size:14px}.english,.result-count{font-size:16px}.guide-metadata{font-size:14px}.notice{font-size:16px}.article-heading h1{font-size:40px}.article-heading .english{font-size:17px}.article-section>.section-number{float:left;width:44px;font-size:27px;line-height:1.5}.article-section>p{font-size:18px}.figure-label,.annotation-figure figcaption,.field-english>span{font-size:14px}.field-explanation>p:not(.field-english){font-size:18px}.field-explanation .field-basis{font-size:14px!important}.figure-fallback,.footer-row p{font-size:14px}.footer-row nav{font-size:15px}@media (width<=1023px){.home-hero h1{font-size:52px}.brand strong{font-size:32px}.brand>span{display:none}.desktop-nav{gap:18px}.country-links a{padding-inline:20px}.method-section li{grid-template-columns:40px minmax(0,1fr);column-gap:10px;padding-inline:18px}.method-section h3{font-size:19px}.method-section p{font-size:17px}.guide-row-compact{grid-template-columns:120px minmax(0,1fr);gap:12px}.guide-row-compact>.text-link{grid-column:2}.guide-row-compact h3{font-size:21px}}@media (width<=767px){.header-row{min-height:78px}.brand strong{font-size:30px}.language-switch{font-size:16px}.preview-strip{font-size:13px}.home-hero{padding-top:32px;padding-bottom:34px}.home-hero h1{font-size:34px;line-height:1.4}.hero-intro{margin-top:17px;font-size:18px}.home-search{margin-top:23px}.home-search input{min-height:58px;padding:13px 12px;font-size:16px}.home-search .button{min-width:82px;min-height:58px;padding-inline:13px;font-size:17px}.home-search p{font-size:14px}.section-heading h2,.topic-section h2,.method-section h2,.home-guides h2{font-size:25px}.section-heading p,.home-guides>.muted{font-size:14px}.country-links a{min-height:66px;padding:16px;font-size:18px}.topic-links{margin-top:15px;display:block}.topic-links a{border-right:0;border-bottom:1px solid var(--line);min-height:58px;padding:12px 0;font-size:18px}.topic-links a:last-child{border-bottom:0}.method-section{margin-top:30px;padding:25px 0}.method-section ol{gap:22px}.method-section li{border:0;grid-template-columns:45px minmax(0,1fr);column-gap:12px;padding:0;display:grid;position:static}.step-index{font-size:28px;position:static}.method-section h3{font-size:20px}.method-section p{font-size:17px}.home-guides .section-heading{flex-wrap:wrap;gap:10px}.guide-row-compact{grid-template-columns:minmax(0,1fr);gap:9px;padding-block:20px}.guide-row-compact>.text-link{grid-column:1}.guide-row-compact h3{font-size:21px}.guide-row-compact .english{font-size:15px}.list-page h1{font-size:32px}.page-intro{font-size:18px}.filter-bar select{font-size:16px}.filter-bar>label{font-size:14px}.guide-row h2{font-size:23px}.guide-row>p:not(.english),.guide-summary{font-size:18px}.article-heading h1{font-size:30px}.article-summary{font-size:18px}.notice{font-size:16px}.article-section>.section-number{width:36px;font-size:25px}.article-section>h2{margin-left:46px;font-size:25px}.field-explanation>p:not(.field-english){font-size:18px}.figure-label,.annotation-figure figcaption{font-size:13px}.figure-fallback{font-size:14px}}@media (width<=359px){.home-hero h1{font-size:32px}.article-heading h1{font-size:30px}.preview-strip .shell>span{display:none}}.step-index{white-space:nowrap}.method-section li{grid-template-columns:minmax(50px,max-content) minmax(0,1fr)}.article-section>.section-number{white-space:nowrap;width:1.7em}.article-section>h2{margin-left:2.1em}@media (width<=767px){.method-section li{grid-template-columns:minmax(45px,max-content) minmax(0,1fr)}.header-row{flex-wrap:wrap;row-gap:4px}.language-switch{white-space:nowrap}.preview-strip .shell{flex-wrap:wrap}}@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}.image-viewer-controls [hidden],.mobile-reading-tools[hidden],.reader-toc-fallback[hidden]{display:none!important}.reader-sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.annotation-overlay{pointer-events:none;width:100%;height:100%;position:absolute;inset:0;overflow:visible}.viewer-trigger{border:1px solid var(--accent);min-width:44px;min-height:48px;color:var(--accent);font:inherit;cursor:pointer;background:#fff;border-radius:3px;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-size:1rem;font-weight:600;display:inline-flex}.viewer-trigger:hover{color:var(--accent-hover);background:var(--subtle)}.image-viewer-controls{margin-top:16px}.reader-noscript{color:#536663;font-size:.875rem}.image-viewer,.mobile-toc-dialog{border:1px solid var(--control);color:var(--ink);box-sizing:border-box;background:#fff;border-radius:3px;margin:auto;padding:0}.image-viewer:not([open]),.mobile-toc-dialog:not([open]){display:none}.image-viewer::backdrop,.mobile-toc-dialog::backdrop{background:#101c18b8}.image-viewer{width:min(1200px,100vw - 48px);max-width:none;height:min(880px,100dvh - 48px);max-height:none;overflow:hidden}.image-viewer .viewer-shell{flex-direction:column;height:100%;min-height:0;display:flex;overflow:auto}.image-viewer .viewer-header{z-index:2;background:#fff;flex:none;justify-content:space-between;align-items:flex-start;gap:16px;padding:16px 20px 12px;display:flex;position:sticky;top:0}.image-viewer .viewer-header>div{min-width:0}.image-viewer .viewer-header h2{margin:0 0 4px;font-size:1.25rem;line-height:1.5}.image-viewer .viewer-header p{color:var(--muted);overflow-wrap:anywhere;margin:0;font-size:.875rem;line-height:1.6}.image-viewer .viewer-header button,.image-viewer .viewer-toolbar button,.mobile-reading-tools button,.mobile-toc-dialog header button{min-width:44px;min-height:44px;color:var(--ink);border:1px solid var(--control);font:inherit;cursor:pointer;background:#fff;border-radius:3px;flex-shrink:0;justify-content:center;align-items:center;padding:8px 12px;font-size:1rem;font-weight:600;display:inline-flex}.image-viewer .viewer-close{gap:6px}.image-viewer .viewer-close>span:first-child,.mobile-toc-dialog header button span{font-size:1.5rem;line-height:1}.image-viewer .viewer-toolbar{border-bottom:1px solid var(--line);flex-wrap:wrap;flex:none;justify-content:center;align-items:center;gap:8px;padding:8px 16px 12px;display:flex}.image-viewer .viewer-toolbar button:first-child,.image-viewer .viewer-toolbar button:nth-child(3){font-size:1.4rem}.image-viewer .viewer-toolbar button:disabled{color:#536663;cursor:not-allowed;background:#eaf1ec}.image-viewer .viewer-toolbar button:hover:not(:disabled),.image-viewer .viewer-header button:hover,.mobile-toc-dialog header button:hover{background:#eaf1ec}.image-viewer .viewer-scale{text-align:center;font-variant-numeric:tabular-nums;min-width:4.25em;font-size:1rem}.image-viewer .viewer-content{flex:1 0 240px;grid-template-columns:minmax(0,1fr) minmax(300px,36%);min-height:0;display:grid}.image-viewer .viewer-stage{overscroll-behavior:contain;cursor:grab;touch-action:none;user-select:none;background:#202927;min-width:0;min-height:160px;position:relative;overflow:hidden}.image-viewer .viewer-stage.is-dragging{cursor:grabbing}.image-viewer .viewer-stage:focus-visible{outline-offset:-5px;outline:3px solid #fff}.image-viewer .viewer-plane{transform-origin:50%;will-change:transform;background:#fff;position:absolute;top:50%;left:50%}.image-viewer .viewer-plane>img{pointer-events:none;width:100%;max-width:none;height:100%;display:block}.image-viewer .viewer-help{color:#536663;flex:none;margin:0;padding:12px 20px;font-size:.875rem;line-height:1.6}.image-viewer .viewer-touch-help{display:none}.image-viewer .viewer-explanations{overscroll-behavior:contain;border-left:1px solid var(--line);min-width:0;min-height:0;color:var(--ink);scrollbar-color:var(--control) var(--subtle);background:#fff;padding:20px;overflow:auto}.image-viewer .viewer-explanations:focus-visible{outline-offset:-4px;outline:3px solid #176b5b}.image-viewer .viewer-explanations-heading h3{margin:0;font-size:20px;font-weight:650;line-height:1.5}.image-viewer .viewer-explanations-heading p{color:#536663;margin:6px 0 0;font-size:14px;line-height:1.7}.image-viewer .viewer-field-list{margin:20px 0 0;padding:0;list-style:none}.image-viewer .viewer-field{border-top:1px solid var(--line);padding:18px 0 22px}.image-viewer .viewer-field h4{margin:0 0 8px;font-size:19px;font-weight:650;line-height:1.55}.image-viewer .viewer-field h4 button{width:100%;min-width:44px;min-height:44px;color:var(--accent);font:inherit;line-height:inherit;text-align:left;cursor:pointer;overflow-wrap:anywhere;background:#fff;border:1px solid #0000;border-radius:3px;align-items:flex-start;gap:10px;margin:0;padding:6px 4px;display:flex}.image-viewer .viewer-field h4 button:hover:not(:disabled),.image-viewer .viewer-field h4 button[aria-pressed=true]{background:#eaf1ec;border-color:#cad5ce}.image-viewer .viewer-field h4 button:disabled{cursor:default;color:#1e302d;opacity:1}.image-viewer .viewer-field-number{background:var(--annotation-accent,#b65c00);color:#fff;font-variant-numeric:tabular-nums;border-radius:50%;flex:none;justify-content:center;align-items:center;min-width:28px;min-height:28px;margin-top:1px;padding:2px 5px;font-size:16px;font-weight:600;line-height:1.5;display:inline-flex}.image-viewer .viewer-field p{overflow-wrap:anywhere;margin:10px 0 0;font-size:18px;line-height:1.8}.image-viewer .viewer-field .image-viewer .viewer-field-english{color:#536663;margin-top:0;font-size:16px;line-height:1.65}.image-viewer .viewer-field-english strong{font-weight:600}.image-viewer .viewer-provenance{border-top:1px solid var(--line);color:var(--muted);overflow-wrap:anywhere;margin-top:8px;font-size:.875rem;line-height:1.7}.image-viewer .viewer-provenance summary{cursor:pointer;min-height:44px;color:var(--accent);align-items:center;padding:6px 0;font-weight:600;display:flex}.image-viewer .viewer-provenance summary:before{content:"+";flex:none;width:22px;font-size:1.25em}.image-viewer .viewer-provenance[open] summary:before{content:"−"}.image-viewer .viewer-provenance p{margin:8px 0 12px}.image-viewer .viewer-provenance a{color:var(--accent);text-underline-offset:3px}.image-viewer .viewer-provenance summary:focus-visible,.image-viewer .viewer-provenance a:focus-visible{outline-offset:2px;outline:3px solid #176b5b}.image-viewer .viewer-error{color:#fff;cursor:default;max-width:38rem;margin:32px auto;padding:24px;line-height:1.8}.image-viewer .viewer-error button{color:#1e302d;min-width:44px;min-height:44px;font:inherit;cursor:pointer;background:#fff;border:1px solid #fff;border-radius:8px;padding:8px 16px}.image-viewer button:focus-visible,.viewer-trigger:focus-visible,.reader-toc a:focus-visible,.reader-toc-fallback a:focus-visible,.mobile-reading-tools button:focus-visible,.mobile-toc-dialog a:focus-visible,.mobile-toc-dialog button:focus-visible{outline-offset:3px;outline:3px solid #176b5b}.reader-toc{align-self:start;min-width:0;position:sticky;top:32px}.reader-toc h2{margin:0 0 16px;font-size:1rem;font-weight:600;line-height:1.5}.reader-toc ol,.reader-toc-fallback ol,.mobile-toc-dialog ol{margin:0;padding:0;list-style:none}.reader-toc li+li,.reader-toc-fallback li+li{margin-top:4px}.reader-toc a,.reader-toc-fallback a,.mobile-toc-dialog nav a{box-sizing:border-box;color:#536663;overflow-wrap:anywhere;border-radius:6px;align-items:flex-start;gap:12px;min-height:44px;padding:12px;font-size:1rem;line-height:1.65;text-decoration:none;display:flex}.reader-toc a[aria-current],.reader-toc-fallback a[aria-current],.mobile-toc-dialog a[aria-current]{color:#176b5b;background:#eaf1ec;font-weight:600}.reader-toc a:hover,.reader-toc-fallback a:hover,.mobile-toc-dialog nav a:hover{text-decoration:underline}.toc-number{font-variant-numeric:tabular-nums;flex:none}.reader-toc-fallback,.mobile-reading-tools{display:none}.mobile-toc-dialog{width:min(600px,100vw - 32px);max-height:calc(100dvh - 32px);overflow:auto}.mobile-toc-dialog>header{z-index:1;background:#fff;border-bottom:1px solid #cad5ce;justify-content:space-between;align-items:center;gap:16px;padding:16px 20px;display:flex;position:sticky;top:0}.mobile-toc-dialog header h2{margin:0;font-size:1.25rem}.mobile-toc-dialog nav{padding:12px}.mobile-toc-dialog nav a{padding:16px 12px}.toc-position{color:#536663;border-top:1px solid #cad5ce;margin:0;padding:16px 24px 24px;font-size:.875rem}#guide-body [id]{scroll-margin-top:32px;scroll-margin-bottom:calc(var(--reading-bar-height,0px) + 24px)}#guide-body [tabindex="-1"]:focus{outline:none}#guide-body [tabindex="-1"]:focus-visible{outline-offset:8px;outline:2px solid #176b5b}@media (width<=1023px){.reader-toc{display:none}.reader-toc-fallback{border-bottom:1px solid #cad5ce;margin-bottom:24px;padding:12px 0;display:block}.reader-toc-fallback summary{cursor:pointer;min-height:44px;padding:8px;font-size:1rem;font-weight:600}.mobile-reading-tools{z-index:30;padding:12px max(16px, env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));box-sizing:border-box;background:#fff;border-top:1px solid #cad5ce;justify-content:space-between;align-items:center;gap:12px;display:flex;position:fixed;bottom:0;left:0;right:0}.reading-position{flex-wrap:wrap;align-items:baseline;gap:8px;min-width:0;font-size:.875rem;line-height:1.5;display:flex}.reading-position [data-testid=reading-progress]{color:#176b5b;font-variant-numeric:tabular-nums;font-weight:600}.mobile-reading-tools button{color:#176b5b;border-color:#176b5b;gap:8px}html.has-reader-tools body{padding-bottom:calc(var(--reading-bar-height,84px) + 16px)}html.has-reader-tools{scroll-padding-bottom:calc(var(--reading-bar-height,84px) + 24px)}}@media (width<=600px){.image-viewer{border:0;border-radius:0;width:100vw;height:100dvh;margin:0}.image-viewer .viewer-header{padding:max(12px, env(safe-area-inset-top)) 12px 8px;gap:8px}.image-viewer .viewer-header h2{font-size:18px}.image-viewer .viewer-close{padding-inline:8px!important}.image-viewer .viewer-header p{font-size:13px}.image-viewer .viewer-toolbar{padding:6px max(8px, env(safe-area-inset-right)) 8px max(8px, env(safe-area-inset-left));gap:4px}.image-viewer .viewer-toolbar button{padding-inline:6px;font-size:14px}.image-viewer .viewer-scale{min-width:3em;font-size:14px}.image-viewer .viewer-content{min-height:calc(clamp(160px, calc((100vw - 32px) / var(--viewer-aspect) + 32px), 48dvh) + 140px);flex-direction:column;flex:1 0 280px;display:flex}.image-viewer .viewer-content:has(.viewer-stage[data-fitted=false]){min-height:calc(48dvh + 140px)}.image-viewer .viewer-stage{flex:0 0 clamp(160px, calc((100vw - 32px) / var(--viewer-aspect) + 32px), 48dvh)}.image-viewer .viewer-stage[data-fitted=false]{flex-basis:48dvh}.image-viewer .viewer-explanations{border-top:1px solid #cad5ce;border-left:0;flex:160px;min-height:140px;padding:10px 16px}.image-viewer .viewer-explanations-heading h3{font-size:18px}.image-viewer .viewer-explanations-heading p{margin-top:3px;font-size:13px}.image-viewer .viewer-field-list{margin-top:12px}.image-viewer .viewer-field{padding-block:12px 18px}.image-viewer .viewer-keyboard-help{display:none}.image-viewer .viewer-touch-help{display:inline}.image-viewer .viewer-help{padding:8px 12px calc(8px + env(safe-area-inset-bottom));font-size:.8125rem}.mobile-toc-dialog{width:100vw;max-height:min(85dvh,700px);padding-bottom:env(safe-area-inset-bottom);border-bottom:0;border-radius:12px 12px 0 0;margin:auto 0 0}}@media (prefers-reduced-motion:reduce){.image-viewer,.image-viewer .viewer-plane,.mobile-toc-dialog,.reader-toc *,.mobile-reading-tools *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@font-face{font-family:CNForm Sans;src:url(/design-v2/fonts/CNFormLocalSans-Regular.woff)format("woff");font-display:swap;font-weight:400}:root{--canvas:#fafbf8;--surface:#fff;--ink:#102b31;--muted:#51666b;--accent:#176b60;--accent-hover:#11554c;--subtle:#eef3ed;--line:#dde5df;--control:#71817c;--annotation-accent:#b65c00;font-synthesis:weight;font-family:CNForm Sans,Microsoft JhengHei,Microsoft YaHei,sans-serif}html[lang=zh-TW]{font-family:CNForm Sans,Microsoft JhengHei,sans-serif}body{background:var(--canvas)}.shell{width:min(100%,1350px);max-width:none;padding-inline:36px}.header-row{gap:0;width:1252px;max-width:calc(100% - 196px);height:53px;min-height:0;padding:0}.site-header{background:#fbfcfa;border-color:#e1e8e3;height:53px}.brand{white-space:nowrap;flex-direction:row;align-items:center;gap:14px;line-height:1}.brand strong{letter-spacing:-.9px;font:700 26px/1 Arial,sans-serif;position:relative;top:1px;left:-1px}.brand>span{color:var(--ink);letter-spacing:6.3px;font-size:12px;display:block}.desktop-nav{gap:32px;font-size:12px;line-height:1.4}.language-switch{border:0;min-width:50px;height:44px;margin-left:29px;padding-left:27px;font-size:12px;font-weight:600;line-height:1.4;position:relative}.language-switch:before{content:"";border-left:1px solid #cad6d0;height:24px;position:absolute;left:0}.site-footer{background:var(--canvas);border-color:var(--line);margin-top:64px;padding:20px 0}.footer-row{align-items:center;gap:0;min-height:44px;display:flex}.footer-brand-group{flex-shrink:0;width:324px}.footer-brand{letter-spacing:-.3px;color:var(--ink);font:700 18px/20px Arial,sans-serif;display:block}.footer-brand-group small{font-size:10px;line-height:13px;display:block}.footer-row>p{margin:0;font-size:12px;line-height:1.7}.footer-row nav{align-items:center;gap:24px;margin-left:auto;font-size:12px}.footer-row nav a{white-space:nowrap;align-items:center;min-height:44px}.preview-strip{background:var(--surface);color:var(--muted);border-top:2px solid var(--accent);margin-top:28px;font-size:14px;line-height:1.9}.preview-strip .shell{padding-block:24px;display:block}.preview-strip span{margin-top:6px;display:block}.button{border-radius:4px}.status-badge{color:#805013;background:#fff1cf;border-radius:2px}.breadcrumbs{padding-block:26px;font-size:13px;line-height:1.7}.breadcrumbs a:hover{text-decoration:underline}.text-link{font-size:16px}.field-number{background:var(--annotation-accent)}.list-page{width:min(100%,1192px);padding-bottom:30px}.list-heading{border-bottom:1px solid var(--line);padding:16px 0 30px}.list-page h1{letter-spacing:0;font-size:40px;line-height:1.45}.page-intro{margin:16px 0 0;font-size:18px;line-height:1.9}.search-form{margin-top:28px}.search-form>label{font-size:15px}.search-input-row{gap:0}.search-input-row input{border-color:var(--accent);border-radius:3px 0 0 3px;min-height:52px}.search-input-row .button{border-radius:0 3px 3px 0;min-width:116px}.filter-bar{gap:20px;padding:20px 0 25px}.filter-bar>label{font-size:14px}.filter-bar select{border-radius:3px;min-height:48px;font-size:16px}.result-count{margin-top:22px;font-size:14px}.search-results .guide-row{border-bottom:1px solid var(--line);grid-template-columns:244px minmax(0,1fr);gap:28px;max-width:none;padding:30px 0;display:grid}.list-thumbnail{border:1px solid var(--line);background:#fff;width:244px;height:150px;display:block;overflow:hidden}.list-thumbnail img{object-fit:cover;object-position:top left;width:100%;height:100%;display:block}.list-result-copy{min-width:0}.search-results .guide-row-meta{gap:14px;font-size:13px}.search-results .guide-row h2{margin:8px 0 6px;font-size:25px;line-height:1.6}.search-results .guide-row .english{font-size:14px;line-height:1.7}.list-summary{color:var(--muted);margin-top:10px;font-size:17px;line-height:1.9}.list-review-status{color:var(--muted);margin-top:10px;font-size:13px;line-height:1.8}.list-result-copy>.text-link{margin-top:8px}.search-results .guide-row.no-thumbnail{grid-template-columns:1fr}.empty-state{padding:56px 20px}.prose-page{max-width:892px;padding-top:48px}.prose-page h1{font-size:40px;line-height:1.5}.prose-page>p,.prose-page section p{font-size:18px;line-height:1.95}.prose-page section{margin-top:44px;padding-top:30px}.prose-page h2{font-size:28px}.prose-page li{margin:14px 0}.prose-page a:not(.button){text-underline-offset:4px;text-decoration:underline}.prose-page .eyebrow{margin-bottom:12px}@media (width<=1100px){.header-row{width:100%;max-width:none;padding-inline:30px}.brand>span{letter-spacing:2px}.desktop-nav{gap:22px}.footer-brand-group{width:220px}}@media (width<=767px){.shell{padding-inline:22px}.site-header{height:auto;min-height:64px}.header-row{flex-wrap:nowrap;gap:12px;height:auto;min-height:64px;padding-inline:22px}.brand strong{font-size:26px}.brand>span,.desktop-nav{display:none}.language-switch{min-width:44px;margin:0 0 0 auto;padding:0;font-size:14px}.language-switch:before{display:none}.site-menu{display:block}.site-menu summary{min-width:44px;min-height:44px;font-size:23px}.site-menu nav{font-size:16px;top:50px;right:0}.footer-row{flex-wrap:wrap;gap:16px;display:flex}.footer-brand-group{width:100%}.footer-row>p{font-size:13px}.footer-row nav{flex-wrap:wrap;gap:22px;width:100%;margin:0;font-size:13px}.site-footer,.reading-page .site-footer{margin-top:48px;padding:24px 0}.preview-strip{font-size:13px}.preview-strip .shell,.preview-strip .shell>span{display:block}.list-heading{padding-top:0}.list-page h1,.prose-page h1{font-size:30px}.page-intro{font-size:17px}.filter-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.filter-bar>.quiet{font-size:15px}.search-input-row .button{min-width:76px;padding-inline:12px}.search-results .guide-row{grid-template-columns:minmax(0,1fr);gap:18px;padding:28px 0}.list-thumbnail{aspect-ratio:1.8;width:100%;height:auto}.search-results .guide-row h2{font-size:23px}.list-summary{font-size:17px}.list-review-status{font-size:13px}.prose-page{padding-top:28px}.prose-page h2{font-size:25px}.breadcrumbs{padding-block:22px}}@media (width<=359px){.shell{padding-inline:16px}.header-row{gap:8px;padding-inline:16px}.brand strong{font-size:25px}.search-input-row input{font-size:16px}.filter-bar{column-gap:10px}.filter-bar>label{font-size:13px}}