*,:before,:after{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }::backdrop{--tw-border-spacing-x: 0;--tw-border-spacing-y: 0;--tw-translate-x: 0;--tw-translate-y: 0;--tw-rotate: 0;--tw-skew-x: 0;--tw-skew-y: 0;--tw-scale-x: 1;--tw-scale-y: 1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness: proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width: 0px;--tw-ring-offset-color: #fff;--tw-ring-color: rgb(59 130 246 / .5);--tw-ring-offset-shadow: 0 0 #0000;--tw-ring-shadow: 0 0 #0000;--tw-shadow: 0 0 #0000;--tw-shadow-colored: 0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border-width:0;border-style:solid;border-color:#e5e7eb}:before,:after{--tw-content: ""}html,:host{line-height:1.5;-webkit-text-size-adjust:100%;-moz-tab-size:4;-o-tab-size:4;tab-size:4;font-family:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent}body{margin:0;line-height:inherit}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;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-feature-settings:normal;font-variation-settings:normal;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-family:inherit;font-feature-settings:inherit;font-variation-settings:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:transparent;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{list-style:none;margin:0;padding:0}dialog{padding:0}input::-moz-placeholder,textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{display:block;vertical-align:middle}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}.visible{visibility:visible}.block{display:block}.hidden{display:none}.transform{transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skew(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.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)}:root{font-family:Arial,Microsoft YaHei,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;--paper: #f6f3eb;--surface: #eeebe2;--ink: #24251f;--muted: #66665c;--line: #cecbbf;--accent: #ad3d28;--inverse: #fffaf0;--serif: Georgia, "Times New Roman", "Songti SC", SimSun, serif;color-scheme:light}:root[data-theme=dark]{--paper: #20221e;--surface: #292c25;--ink: #eeece1;--muted: #b1b2a5;--line: #4e5146;--accent: #ed967c;--inverse: #20221e;color-scheme:dark}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}a,button{touch-action:manipulation}a:hover,button.text-link:hover{color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:5px}main:focus{outline:none}h1,h2,h3,p{margin:0}button{background:none;border:0;color:inherit}input,textarea,select{min-width:0;max-width:100%;border:1px solid var(--line);border-radius:0;background:transparent;color:var(--ink);padding:.75rem}input,textarea{width:100%}input::-moz-placeholder,textarea::-moz-placeholder{color:var(--muted);opacity:1}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}textarea{resize:vertical}input[type=checkbox]{width:1rem;height:1rem;accent-color:var(--accent)}label{display:block;font-size:.875rem;font-weight:600}label input,label textarea{margin-top:.625rem}form>label{margin-top:1.5rem}form .button{margin-top:1.5rem}p{line-height:1.8}h1,h2,h3{font-weight:500}h1{font-family:var(--serif);font-size:2.75rem;line-height:1.35;letter-spacing:-.045em}h2{font-size:1.5rem;line-height:1.4}h3{font-size:1.25rem}.site-shell{width:min(1280px,100% - 6rem);margin:0 auto}.masthead{padding-top:1.5rem}.masthead-top{display:flex;justify-content:space-between;font-size:.625rem;letter-spacing:.15em;color:var(--muted)}.brand-row{display:flex;justify-content:space-between;align-items:center;padding:1rem 0 1.5rem}.brand{font-family:var(--serif);font-size:5.25rem;font-weight:700;letter-spacing:-.075em;line-height:1}.brand>span{font-weight:400}.brand sup{font-family:Arial,sans-serif;color:var(--accent);font-weight:400;font-size:2.75rem;margin-left:.5rem;vertical-align:top}.brand-note{font-family:var(--serif);font-size:1rem;line-height:1.75;border-left:1px solid var(--line);padding-left:1.5rem;letter-spacing:.12em}.navigation-row{display:flex;justify-content:space-between;align-items:center;gap:1rem;border-top:2px solid var(--ink);border-bottom:1px solid var(--ink);min-height:3.75rem;font-size:.8125rem}.navigation-row nav,.account-nav{display:flex;gap:2rem;align-items:center}.navigation-row nav a{position:relative;padding:1.25rem 0}.navigation-row .selected:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--accent)}.account-nav button{padding:.75rem 0}.username{color:var(--muted);max-width:10rem;overflow:hidden;text-overflow:ellipsis}.theme-switch{color:var(--muted)}.account-slot{display:flex;flex:none;align-items:center;justify-content:flex-end;gap:.35rem;min-height:2.75rem;white-space:nowrap}.account-name{min-width:0;overflow:hidden;text-overflow:ellipsis}.home-account-slot{width:7.75rem;color:var(--muted);font-size:.75rem}.masthead-account-slot{width:5.25rem}@media(min-width:641px){.masthead-account-slot{width:11rem}}main{min-height:50vh}.page-intro{padding:3rem 0 2.5rem;display:flex;gap:2rem;justify-content:space-between;align-items:flex-end}.eyebrow{display:block;font-size:.625rem;letter-spacing:.16em;line-height:1.6;font-weight:600;color:var(--muted)}.page-intro h1{margin-top:.75rem}.intro-note{color:var(--muted);font-size:.8125rem;line-height:1.9}.section-label{display:flex;justify-content:space-between;gap:1rem;align-items:center;margin:1.5rem 0 0;padding-bottom:1rem;border-bottom:1px solid var(--line);font-size:.625rem;letter-spacing:.09em;color:var(--muted)}.section-label h2{font-family:var(--serif);font-size:1.25rem;color:var(--ink);letter-spacing:0}.article-item{min-width:0}.article-kicker{display:flex;gap:.75rem;align-items:center;font-size:.625rem;color:var(--accent);letter-spacing:.1em;font-weight:700;text-transform:uppercase}.demo-label{font-size:.5625rem;letter-spacing:.04em;border:1px solid var(--line);padding:.125rem .375rem;font-weight:400;color:var(--muted)}.article-title{font-family:var(--serif);font-size:1.875rem;line-height:1.2;letter-spacing:-.035em;margin:1rem 0;overflow-wrap:anywhere}.article-title a{display:block}.article-title a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em}.article-summary{font-family:var(--serif);color:var(--muted);font-size:1rem;line-height:1.7}.article-meta{display:flex;gap:.5rem 1rem;flex-wrap:wrap;color:var(--muted);font-size:.625rem;line-height:1.8;margin-top:1.5rem}.article-meta span:first-child{font-weight:700;color:var(--ink)}.text-link{font-size:.75rem;display:inline-flex;align-items:center;gap:1rem;padding:.5rem 0;border-bottom:1px solid var(--ink)}.text-link span{color:var(--accent)}.site-footer{margin-top:3rem;padding:2rem 0 2.5rem;border-top:2px solid var(--ink);display:flex;align-items:flex-end;justify-content:space-between;gap:2rem}.footer-brand{font-family:var(--serif);font-size:1.75rem;letter-spacing:-.06em}.footer-brand span{font-family:Arial,sans-serif;font-size:.625rem;vertical-align:top;margin-left:.25rem}.site-footer p,.site-footer>a{font-size:.625rem;color:var(--muted);line-height:1.8}.site-footer>div p{margin-top:.5rem}.button{display:inline-flex;justify-content:center;align-items:center;background:var(--accent);color:var(--inverse);border:1px solid var(--accent);font-size:.8125rem;padding:.875rem 1.25rem;min-height:2.75rem;font-weight:600;line-height:1.4}.button:hover{color:var(--inverse);filter:brightness(.94)}.button.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.button.secondary:hover{color:var(--accent);border-color:var(--accent)}.muted{color:var(--muted);font-size:.8125rem}.field-note,.rights-note{font-size:.6875rem;color:var(--muted);line-height:1.8;margin:.75rem 0}.inline-error{font-size:.8125rem;color:var(--accent);padding:.75rem 0;overflow-wrap:anywhere}.saved-message{font-size:.8125rem;margin-top:1rem;border-left:2px solid var(--accent);padding-left:.75rem}.status-panel{padding:4rem 1rem;text-align:center;border-bottom:1px solid var(--line)}.status-panel h2,.status-panel h1{font-family:var(--serif);margin:1rem 0}.status-panel p{font-size:.8125rem;color:var(--muted);margin:1rem auto;max-width:36rem}.status-panel .button{margin-top:.5rem}.loading-rule{width:5rem;height:2px;background:var(--accent);margin:1.5rem auto;animation:breathe 1.5s ease infinite}@keyframes breathe{50%{opacity:.25}}.pagination{display:flex;align-items:center;justify-content:center;gap:2rem;padding:2rem 0;font-size:.75rem}.pagination button{padding:.75rem}.back-link{display:inline-block;margin:2rem 0;font-size:.75rem;color:var(--muted)}.story-page{max-width:52rem;margin:1rem auto 5rem}.story-page h1{font-size:4rem;line-height:1.08;margin:1.5rem 0 2rem}.story-page .article-meta{padding-bottom:2rem;border-bottom:1px solid var(--line)}.story-summary{font-family:var(--serif);font-size:1.5rem;line-height:1.8;margin:2rem 0}.story-actions{display:flex;gap:.75rem;flex-wrap:wrap;margin:2rem 0}.story-page>.muted{margin:2rem 0}.login-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:5rem;padding:4rem 0}.login-editorial h1{margin:1rem 0 1.5rem;font-size:2.75rem}.login-editorial>p:not(.eyebrow){color:var(--muted);font-size:.875rem}.login-number{font-family:var(--serif);font-size:11rem;line-height:1;letter-spacing:-.1em;margin:2rem 0 0;color:var(--accent)}.login-number span{font-family:Arial;font-size:4rem;vertical-align:top;padding-left:1rem}.login-form{border-left:1px solid var(--line);padding-left:3rem;align-self:start}.login-form h2{font-family:var(--serif);font-size:2rem;margin:.75rem 0}.login-form>.button{width:100%}.study-nav{display:flex;gap:2rem;flex-wrap:wrap;border-bottom:1px solid var(--line);padding:1.5rem 0;font-size:.75rem}.study-nav .router-link-exact-active{color:var(--accent);font-weight:700}.stats-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);padding:1.5rem 0}.stats-grid>div{display:flex;flex-direction:column;gap:.5rem;padding-left:1.5rem;border-left:1px solid var(--line);font-size:.75rem}.stats-grid>div:first-child{padding-left:0;border-left:0}.stats-grid strong{font-family:var(--serif);font-size:3.5rem;font-weight:400;line-height:1.3}.history-row{display:flex;align-items:center;gap:3rem;justify-content:space-between;padding:1.75rem 0;border-bottom:1px solid var(--line)}.history-row .article-item{flex:1}.history-row .article-title{font-size:1.875rem;max-width:45rem}.history-row .article-summary{font-size:.9375rem}.progress-block{flex:0 0 10rem;font-size:.6875rem;color:var(--muted)}progress{display:block;width:100%;height:.25rem;border:0;background:var(--line);accent-color:var(--accent);margin-top:1rem}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--accent)}.tabs{display:flex;gap:1.5rem;border-bottom:1px solid var(--ink);font-size:.8125rem}.tabs button{padding:1rem 0}.tabs button[aria-pressed=true]{border-bottom:3px solid var(--accent);font-weight:700;color:var(--accent)}.reader-layout{display:grid;grid-template-columns:minmax(0,2.4fr) minmax(0,1fr);gap:4rem;margin:1rem 0 4rem}.reader-article h1{font-size:3.5rem;line-height:1.1;margin:1.5rem 0}.reader-article .article-meta{padding-bottom:1.5rem;border-bottom:1px solid var(--line)}.reader-deck{font-family:var(--serif);font-size:1.25rem;line-height:1.8;color:var(--muted);margin:2rem 0}.reader-body{font-family:var(--serif);font-size:1.25rem;line-height:1.9;overflow-wrap:anywhere}.reader-body p{margin:1.5rem 0;white-space:pre-line}.reader-body p:first-child:first-letter{float:left;font-size:4rem;line-height:.85;margin:.625rem .5rem 0 0;color:var(--accent)}.reader-tools{border-left:1px solid var(--line);padding-left:2rem;align-self:start;position:sticky;top:1rem}.tool-heading{display:flex;gap:1rem;justify-content:space-between;align-items:baseline;padding-bottom:1rem;border-bottom:1px solid var(--ink)}.tool-heading h2{font-family:var(--serif);font-size:1.25rem}.tool-heading .eyebrow{font-size:.5625rem}.bookmark-button{width:100%;margin-top:1.25rem}.reader-tools .button{width:100%}.reader-tools label{font-size:.75rem}.reader-tools .text-link{margin-top:1.5rem}.reader-tools label .muted{float:right}.body-unavailable{padding:2rem;background:var(--surface);margin:2rem 0}.body-unavailable h2{font-family:var(--serif);font-size:1.5rem;margin-bottom:1rem}.body-unavailable p{font-size:.875rem;color:var(--muted)}.vocabulary-layout{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);gap:4rem}.vocabulary-layout .section-label{margin:0}.vocabulary-form{padding:1.5rem 2rem;background:var(--surface);align-self:start}.vocabulary-form h2{font-family:var(--serif);font-size:1.75rem;margin-top:.5rem}.vocabulary-form>textarea{margin-top:.625rem}.vocabulary-form .button{display:block;width:100%}.word-entry{padding:1.5rem 0;border-bottom:1px solid var(--line)}.word-heading{display:flex;gap:1rem;align-items:baseline;justify-content:space-between}.word-heading h3{font-family:var(--serif);font-size:2rem;overflow-wrap:anywhere}.word-entry p{font-size:.875rem;margin:.75rem 0}.word-entry blockquote{border-left:2px solid var(--line);padding-left:1rem;margin:1rem 0;color:var(--muted);font-family:var(--serif);font-size:1rem;overflow-wrap:anywhere;white-space:pre-line}.word-actions{display:flex;gap:1.5rem;font-size:.6875rem}.word-actions button{padding:.5rem 0;text-decoration:underline;text-underline-offset:.25em}.sync-status{display:flex;flex-wrap:wrap;gap:2rem;padding:1.5rem 0;border-block:1px solid var(--ink)}.sync-status>div{display:flex;flex-direction:column;gap:.75rem;min-width:9rem;font-size:.6875rem;color:var(--muted)}.sync-status strong{font-family:var(--serif);font-size:1.5rem;color:var(--ink);font-weight:400}.sync-status>p{width:100%}.source-policy{padding:2rem 0;border-bottom:1px solid var(--ink)}.source-heading{display:flex;justify-content:space-between;align-items:center}.source-heading h2{font-family:var(--serif);font-size:2rem;margin-top:.5rem}.policy-state{border:1px solid var(--line);padding:.375rem .75rem;font-size:.6875rem}.feed-url{font-family:monospace;font-size:.75rem;color:var(--muted);overflow-wrap:anywhere;margin:1rem 0}.policy-flags{display:flex;flex-wrap:wrap;gap:1.5rem;margin:1.5rem 0}.policy-flags label{display:flex;align-items:center;gap:.5rem;font-size:.75rem}.policy-flags input{margin:0}.policy-fields{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.skip-link{position:fixed;left:1rem;top:-5rem;padding:1rem;background:var(--ink);color:var(--paper);z-index:99}.skip-link:focus{top:1rem}@media(max-width:1024px){.site-shell{width:calc(100% - 3rem)}.brand{font-size:4.5rem}.article-title{font-size:1.625rem}.reader-layout{gap:2rem;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr)}.reader-tools{padding-left:1.5rem}.reader-article h1{font-size:2.75rem}.login-layout{gap:3rem}.login-form{padding-left:2rem}.vocabulary-layout{gap:2rem}.vocabulary-form{padding:1.5rem}}@media(max-width:767px){.site-shell{width:calc(100% - 2rem)}.masthead{padding-top:1rem}.masthead-top{font-size:.5rem;letter-spacing:.08em}.edition-label{display:none}.brand-row{padding:1.25rem 0}.brand{font-size:3.75rem}.brand sup{font-size:1.875rem}.brand-note{font-size:.6875rem;padding-left:1rem;letter-spacing:0}.navigation-row nav,.account-nav{gap:1rem}.navigation-row{font-size:.6875rem;gap:.5rem}.username{display:none}.page-intro{padding:2rem 0;align-items:flex-start;gap:1rem}.page-intro h1{font-size:2rem}.intro-note{font-size:.6875rem}.eyebrow{font-size:.5625rem}.section-label{font-size:.5625rem;line-height:1.8;gap:.75rem}.section-label>span:last-child{text-align:right}.article-kicker{font-size:.5625rem;gap:.5rem;flex-wrap:wrap}.article-meta{font-size:.5625rem;gap:.25rem .625rem}.site-footer{align-items:flex-start;flex-wrap:wrap;margin-top:2rem;gap:1.5rem;padding-bottom:2rem}.site-footer>p{width:55%}.site-footer>a{margin-left:auto}.story-page{margin:1rem 0 3rem}.story-page h1{font-size:2.75rem}.story-summary{font-size:1.25rem}.login-layout{grid-template-columns:1fr;gap:2rem;padding:2rem 0}.login-editorial h1{font-size:2.25rem}.login-number{display:none}.login-form{border-left:0;border-top:1px solid var(--ink);padding:2rem 0 0}.study-nav{gap:.75rem 1.25rem;font-size:.6875rem;padding:1rem 0}.stats-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem 0}.stats-grid>div:nth-child(4){padding-left:0;border-left:0}.stats-grid>div{font-size:.6875rem;padding-left:1rem}.stats-grid strong{font-size:2.75rem}.history-row{flex-direction:column;align-items:stretch;gap:1rem}.history-row .article-title{font-size:1.75rem}.progress-block{flex:auto;max-width:12rem}.history-row>.text-link{align-self:flex-start}.reader-layout{grid-template-columns:1fr;margin-top:0}.reader-article h1{font-size:2.75rem}.reader-deck,.reader-body{font-size:1.125rem}.reader-tools{position:static;border-left:0;border-top:1px solid var(--ink);padding:1.5rem 0 0}.vocabulary-layout{grid-template-columns:1fr}.vocabulary-form{grid-row:1;padding:1.5rem}.policy-fields{grid-template-columns:1fr}.source-heading h2{font-size:1.625rem}.source-heading{gap:1rem}.sync-status{gap:1.5rem}.sync-status>div{min-width:7rem}.policy-flags{gap:1rem}.page-intro>.text-link{font-size:.6875rem;white-space:nowrap}.status-panel{padding:3rem .5rem}.status-panel h2{font-size:1.5rem}}@media(max-width:380px){.brand-note{display:none}.brand{font-size:3.25rem}.brand-note{font-size:.5625rem}.brand sup{font-size:1.5rem}.navigation-row nav,.account-nav{gap:.75rem}.page-intro h1{font-size:1.75rem}.page-intro:not(.home-intro){display:block}.page-intro>.intro-note,.page-intro>.text-link{margin-top:1rem}.site-footer>p{width:100%}.site-footer>a{margin:0}.login-editorial h1{font-size:2rem}.story-page h1,.reader-article h1{font-size:2.375rem}}:root:is([data-theme=home-dark],[data-theme=home-light]){font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;--serif: inherit;--accent: var(--ink);--home-radius: 16px;--home-pill: 999px}:root[data-theme=home-dark]{color-scheme:dark;--paper: #080808;--surface: #171717;--home-pill-fill: #222;--home-selected: #303030;--ink: #f5f5f5;--muted: #a8a8a8;--line: #303030;--inverse: #080808}:root[data-theme=home-light]{--paper: #fff;--surface: #f4f4f4;--home-pill-fill: #f0f0f0;--home-selected: #e5e5e5;--ink: #171717;--muted: #5c5c5c;--line: #d4d4d4;--inverse: #fff}.site-shell.home-shell{width:min(1080px,100% - 2.5rem)}.home-shell :focus-visible{outline-offset:3px}.home-header{padding-top:1.25rem;margin-bottom:.875rem}.home-brand-row,.home-brand{display:flex;align-items:center}.home-brand-row{justify-content:space-between;gap:.5rem}.home-brand{gap:.55rem}.home-brand-icon{display:grid;width:2.25rem;height:2.25rem;flex:none;place-items:center;background:var(--home-pill-fill);border-radius:11px}.home-brand-icon svg,.home-search-trigger svg{width:1.25rem;height:1.25rem}.home-brand strong,.home-brand small{display:block}.home-brand strong{font-size:1.25rem;font-weight:600;line-height:1.12;letter-spacing:-.04em}.home-brand small{margin-top:.18rem;color:var(--muted);font-size:.75rem;line-height:1.2}.home-account{display:inline-flex;align-items:center;min-height:2.75rem;padding:0 .25rem;color:var(--muted);font-size:.75rem;white-space:nowrap}.home-primary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.35rem;margin-top:.625rem}.home-primary>*{position:relative;display:grid;min-height:2.75rem;place-items:center;color:var(--muted);font-size:.9rem;isolation:isolate}.home-primary .selected{color:var(--ink);font-weight:600}.home-primary .selected:before,.home-primary>a:hover:before{position:absolute;z-index:-1;top:6px;right:0;bottom:6px;left:0;border-radius:var(--home-pill);background:var(--home-selected);content:""}.home-categories>a:hover{background:var(--home-selected)}.home-intro{display:flex;justify-content:space-between;align-items:center;gap:.75rem}.home-intro h1{font-family:inherit;font-size:1.5rem;font-weight:600;line-height:1.18;letter-spacing:-.035em}.home-intro p{margin-top:.35rem;color:var(--muted);font-size:.925rem;line-height:1.4}.home-search-trigger{display:grid;width:2.75rem;height:2.75rem;flex:none;place-items:center;color:var(--muted);border-radius:var(--home-pill)}.home-search-trigger:hover{background:var(--surface);color:var(--ink)}.home-search{display:flex;gap:.5rem;margin-top:.75rem}.home-search input,.home-search button{min-height:2.75rem;border:1px solid var(--line);border-radius:var(--home-pill);padding:.4rem .9rem}.home-search button{background:var(--home-pill-fill);white-space:nowrap}.home-categories{display:flex;flex-wrap:wrap;align-items:center;gap:.375rem;margin:.8rem 0 .9rem}.home-categories a{display:inline-flex;align-items:center;max-width:100%;min-height:1.75rem;padding:.2rem .65rem;border-radius:var(--home-pill);background:var(--home-pill-fill);color:var(--muted);font-size:.8rem;line-height:1.25;overflow-wrap:anywhere}.home-categories a[aria-current=page]{background:var(--home-selected);color:var(--ink)}.home-cover-frame{min-width:0;margin:0}.home-cover{position:relative;aspect-ratio:16 / 9;overflow:hidden;border:1px solid #484848;border-radius:var(--home-radius);background:#222}.home-cover svg,.home-cover img{display:block;width:100%;height:100%}.home-cover img{-o-object-fit:cover;object-fit:cover}.home-cover-credit{display:flex;flex-wrap:wrap;gap:.125rem .5rem;margin-top:.3rem;color:var(--muted);font-size:.7rem;line-height:1.4;overflow-wrap:anywhere}.home-cover-credit a{text-decoration:underline;text-underline-offset:.1em}.home-cover-license{white-space:nowrap}.home-cover-kind{position:absolute;right:.35rem;bottom:.3rem;padding:.1rem .28rem;border-radius:var(--home-pill);background:#161616;color:#f5f5f5;font-size:.625rem;line-height:1.2;white-space:nowrap}.home-featured .home-cover-kind{right:.5rem;bottom:.5rem;padding:.25rem .6rem;font-size:.75rem}.home-cover-source{position:absolute;inset:auto auto .5rem .5rem;max-width:calc(100% - 1rem);padding:.25rem .6rem;border-radius:var(--home-pill);background:#222;color:#f5f5f5;font-size:.75rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.home-featured .home-story-copy{padding-top:.75rem}.home-story-copy{min-width:0;overflow-wrap:anywhere}.home-story-kicker{color:var(--muted);font-size:.75rem;line-height:1.3;text-transform:uppercase}.home-story .article-title{margin:.25rem 0;font-family:inherit;font-size:1rem;font-weight:600;line-height:1.26;letter-spacing:-.02em}.home-featured .article-title{margin-top:.35rem;font-size:1.35rem}.home-story-meta{display:flex;flex-wrap:wrap;gap:.15rem .6rem;color:var(--muted);font-size:.79rem;line-height:1.4}.home-story-source{min-width:0}.home-story-timing{display:inline-flex;align-items:baseline;white-space:nowrap}.home-story-timing>span:before{margin-left:.35rem;margin-right:.35rem;content:"·"}.home-story-summary{margin-top:.4rem;font-size:.925rem;line-height:1.45}.home-read-link{display:flex;min-height:2.75rem;align-items:center;justify-content:center;gap:.6rem;margin-top:.65rem;border:1px solid var(--line);border-radius:var(--home-pill);font-size:.875rem}.home-read-link:hover{background:var(--home-pill-fill)}.home-latest{margin-top:1.4rem}.home-latest-heading{display:grid;grid-template-columns:minmax(0,1fr);align-items:center;justify-content:space-between;gap:.5rem .75rem;margin-bottom:.75rem}.home-latest-heading h2{font-size:1.125rem;font-weight:600;line-height:1.2}.home-latest-heading p,.home-demo{color:var(--muted);font-size:.75rem;line-height:1.4}.home-latest-heading p{margin-top:.2rem}.home-source{display:flex;align-items:center;gap:.4rem;max-width:100%;color:var(--muted);font-size:.75rem}.home-source span{flex:none}.home-source select{flex:1;width:100%;min-height:2.75rem;padding:.25rem .5rem;border-radius:var(--home-pill);background:var(--surface);font-weight:500;text-overflow:ellipsis}.home-demo{margin-bottom:.75rem}.home-stories{display:grid;gap:.625rem}.home-stories .home-story{display:grid;grid-template-columns:5.25rem minmax(0,1fr);align-items:start;gap:.35rem .75rem;min-width:0;padding:.75rem;border:1px solid var(--line);border-radius:var(--home-radius);background:var(--surface)}.home-stories .home-cover{aspect-ratio:4 / 3;border-radius:10px}.home-list-cover-credit{grid-column:1 / -1;margin:0;-moz-column-gap:.25rem;column-gap:.25rem;font-size:.675rem;line-height:1.35}.home-shell .site-footer{gap:.75rem;margin-top:2.5rem}.home-shell .footer-brand{font-family:inherit}.home-shell .theme-switch,.home-pagination button{min-height:2.75rem;border:1px solid var(--line);border-radius:var(--home-pill);padding:.25rem .75rem}@media(min-width:768px){.home-header{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1rem;padding:1.5rem 0;border-bottom:1px solid var(--line);margin-bottom:2.25rem}.home-brand-row{display:contents}.home-brand{justify-self:start}.home-account-slot{grid-column:3;grid-row:1;justify-self:end}.home-primary{grid-column:2;grid-row:1;gap:.4rem;margin:0}.home-primary>*{padding:0 1rem}.home-intro h1{font-size:2.65rem}.home-intro p{font-size:1rem}.home-categories{margin:1rem 0 1.25rem}.home-featured{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);align-items:center;gap:clamp(1rem,4vw,3rem)}.home-featured .home-story-copy{padding:0}.home-featured .article-title{margin:.5rem 0;font-size:clamp(1.45rem,3vw,2.25rem)}.home-featured .home-story-summary{margin-top:.7rem;font-size:1rem}.home-read-link{width:-moz-fit-content;width:fit-content;margin-top:.9rem;padding-inline:1.25rem}.home-latest{margin-top:2rem}.home-latest-heading{grid-template-columns:minmax(0,1fr) minmax(0,15rem)}.home-stories{grid-template-columns:repeat(2,minmax(0,1fr));gap:.875rem}}@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}.reader-document{width:min(100%,760px);margin:0 auto}.reader-toolbar,.reader-toolbar-actions,.reader-tools-heading{display:flex;align-items:center}.reader-toolbar{justify-content:space-between;margin-bottom:1rem;gap:.5rem}.reader-toolbar-actions{gap:.15rem}.reader-back,.reader-icon{display:inline-flex;min-height:2.75rem;align-items:center;justify-content:center;color:var(--muted)}.reader-back{gap:.5rem;font-size:.875rem}.reader-icon{width:2.75rem;padding:0;border-radius:var(--home-pill);border:1px solid transparent}.reader-icon:hover,.reader-icon[aria-pressed=true],.reader-settings[open] summary{color:var(--ink);background:var(--surface);border-color:var(--line)}.reader-icon svg{width:1.125rem;height:1.125rem}.reader-settings{position:relative}.reader-settings summary{list-style:none;cursor:pointer;font-size:.85rem;font-weight:600}.reader-settings summary::-webkit-details-marker{display:none}.reader-settings-panel{position:absolute;z-index:2;inset:calc(100% + .375rem) 0 auto auto;width:min(16rem,85vw);display:grid;gap:.65rem;padding:.875rem;border:1px solid var(--line);border-radius:var(--home-radius);background:var(--surface)}.reader-settings-panel label,.reader-study-tools label{display:grid;gap:.35rem;color:var(--ink);font-size:.85rem}.reader-settings-panel select,.reader-study-tools :is(input,textarea),.reader-share-note input{width:100%;min-width:0;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:.625rem}.reader-share-note{display:grid;gap:.35rem;margin-bottom:1rem;color:var(--muted);font-size:.875rem}.reader-heading{padding-bottom:.9rem;border-bottom:1px solid var(--line)}.reader-kicker,.reader-byline,.reader-mode-note{color:var(--muted);font-size:.82rem;line-height:1.45}.reader-kicker{display:flex;flex-wrap:wrap;gap:.2rem .55rem;text-transform:uppercase;letter-spacing:.055em}.reader-demo{letter-spacing:0}.reader-heading h1{max-width:23ch;margin:.5rem 0 .65rem;font-family:inherit;font-size:clamp(1.75rem,4vw,2.8rem);font-weight:650;line-height:1.14;letter-spacing:-.04em;overflow-wrap:anywhere}.reader-byline{display:flex;align-items:baseline;flex-wrap:wrap;gap:.2rem .65rem}.reader-byline time{white-space:nowrap}.reader-cover{margin:.875rem 0 0}.reader-cover .home-cover{aspect-ratio:2 / 1;max-height:16rem}.reader-cover .home-cover-source{display:none}.reader-options{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .75rem;margin-top:.95rem}.reader-modes{display:flex;flex-wrap:wrap;gap:.25rem}.reader-modes button{min-height:2.75rem;padding:0 .75rem;border-radius:var(--home-pill);color:var(--muted);font-size:.82rem}.reader-modes button:hover,.reader-modes button[aria-pressed=true]{color:var(--ink);background:var(--home-selected)}.reader-progress{display:flex;width:100%;align-items:center;gap:.75rem;color:var(--muted);font-size:.75rem}.reader-progress progress{flex:1;min-width:0;height:3px}.reader-intro,.reader-prose{max-width:68ch;font-size:var(--reader-font, 20px);line-height:var(--reader-leading, 1.7);overflow-wrap:anywhere}.reader-intro{margin:.9rem 0;color:var(--muted)}.reader-intro-deck{font-size:calc(var(--reader-font, 20px) * .85)}.reader-prose{margin:1.1rem 0}.reader-paragraph+.reader-paragraph{margin-top:1.15em}.reader-paragraph p{margin:0}.reader-paragraph p[lang=en]{font-weight:400}.reader-paragraph .reader-translation{margin-top:.45rem;color:var(--muted);font-size:.83em}.reader-source-card,.reader-study-tools{padding:1rem 1.125rem;margin-top:1.25rem;border-radius:var(--home-radius);border:1px solid var(--line);background:var(--surface)}.reader-source-card{margin-top:.95rem}.reader-source-card h2,.reader-study-tools h2{margin:.25rem 0;font-size:1.15rem;font-weight:650}.reader-source-card>p:not(.reader-kicker),.reader-public-tools>p{margin:.5rem 0 .75rem;color:var(--muted);font-size:.875rem}.reader-source-link,.reader-original,.reader-inline-action{display:inline-flex;align-items:center;justify-content:center;min-height:2.75rem;color:var(--ink);font-size:.875rem}.reader-source-link{padding:.35rem .85rem;border:1px solid var(--line);border-radius:var(--home-pill);background:var(--home-selected)}.reader-inline-action,.reader-original{text-decoration:underline;text-underline-offset:.2em}.reader-tools-heading{justify-content:space-between;gap:.75rem}.reader-study-tools form{display:grid;gap:.65rem;margin-top:.6rem}.reader-form-row,.reader-form-actions{display:flex;flex-wrap:wrap;gap:.5rem .75rem}.reader-form-row>label:first-child{width:6.5rem}.reader-form-row>label:last-child{flex:1 1 9rem;min-width:0}.reader-study-tools{scroll-margin-top:1rem}@media(min-width:768px){.reader-document{padding-top:.6rem}.reader-source-card,.reader-study-tools{padding:1.15rem 1.35rem}.reader-source-card{display:grid;grid-template-columns:minmax(0,1fr) auto;-moz-column-gap:1.25rem;column-gap:1.25rem}.reader-source-card>:is(p,h2){grid-column:1}.reader-source-card .reader-source-link{grid-column:2;grid-row:1 / span 3;align-self:center}}.learning-dashboard{width:min(100%,760px);margin:0 auto}.learning-heading,.learning-section-heading{display:flex;align-items:center;justify-content:space-between;gap:.6rem}.learning-heading{margin-bottom:1rem}.learning-eyebrow{color:var(--muted);font-size:.8rem;letter-spacing:.055em}.learning-heading h1{margin-top:.25rem;font-family:inherit;font-size:clamp(1.75rem,4vw,2.75rem);font-weight:650;line-height:1.12;letter-spacing:-.04em}.learning-heading svg{width:1.65rem;height:1.65rem;flex:none}.learning-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.55rem;margin:0}.learning-stat{display:flex;min-height:5.3rem;flex-direction:column;justify-content:center;gap:.3rem;padding:.65rem;border-radius:var(--home-radius);background:var(--home-pill-fill)}.learning-stat dt,.learning-stat .learning-stat-pending{color:var(--muted);font-size:.76rem}.learning-stat dd{order:-1;margin:0;color:var(--ink);font-size:clamp(1.45rem,3.5vw,2rem);font-weight:650;line-height:1.12;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.learning-stat .learning-stat-pending{display:flex;min-height:1.65rem;align-items:center;font-size:.85rem;font-weight:550}.learning-section,.learning-stats-note{margin-top:1.3rem}.learning-section-heading{margin-bottom:.55rem}.learning-section h2{font-family:inherit;font-size:1.125rem;font-weight:650}.learning-subnav{display:inline-flex;min-height:2rem;align-items:center;color:var(--muted);font-size:.8rem;text-decoration:underline;text-underline-offset:.2em}.learning-resume,.learning-empty{padding:.85rem;border-radius:var(--home-radius);background:var(--home-pill-fill)}.learning-resume{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:.5rem .65rem}.learning-resume-icon{width:1.3rem;height:1.3rem;margin-top:.13rem}.learning-resume h3,.learning-empty h3{font-family:inherit;font-size:1rem;font-weight:650;line-height:1.3;overflow-wrap:anywhere}.learning-resume p,.learning-empty p,.learning-stats-note p{margin:.3rem 0;color:var(--muted);font-size:.82rem}.learning-resume p{overflow-wrap:anywhere}.learning-progress{display:flex;align-items:center;gap:.55rem;margin-top:.45rem;color:var(--muted);font-size:.8rem;font-variant-numeric:tabular-nums}.learning-progress progress{flex:1 1 0;width:auto;min-width:0;height:5px;margin:0;overflow:hidden;border-radius:var(--home-pill)}.learning-progress progress::-webkit-progress-value{border-radius:var(--home-pill)}.learning-action{display:inline-flex;min-height:2.75rem;align-items:center;justify-content:center;gap:.45rem;padding:.35rem .7rem;border:1px solid var(--line);border-radius:var(--home-pill);background:var(--surface);color:var(--ink);font-size:.82rem;white-space:nowrap}.learning-resume .learning-action{grid-column:2;justify-self:end}.learning-empty .learning-action{margin-top:.25rem}.learning-tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.55rem}.learning-tool{display:flex;min-height:3.35rem;align-items:center;gap:.55rem;padding:.55rem .65rem;border:1px solid var(--line);border-radius:var(--home-radius);color:var(--ink);font-size:.88rem;line-height:1.35}a.learning-tool:hover,.learning-action:hover{background:var(--home-selected)}.learning-tool svg{width:1.125rem;height:1.125rem;flex:none;color:var(--muted)}.learning-tool-pending{color:var(--muted)}.learning-tool-pending small{display:block;margin-top:.15rem;font-size:.7rem}.learning-admin{margin-top:.7rem}@media(min-width:768px){.learning-dashboard{padding-top:.6rem}.learning-stat{min-height:6.3rem;padding:1rem}.learning-resume,.learning-empty{padding:1.1rem}.learning-resume{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:.9rem}.learning-resume .learning-action{grid-column:auto}.learning-tool{padding-inline:.9rem}}