@charset "UTF-8";
.annotated-text>.original-punctuation{align-self:flex-end}
:root{color-scheme:light;--bg:#f8fafc;--text:#20252e;--muted:#626c7b;--blue:#006be6;--blue-light:#edf5ff;--line:#dce2eb;--glass:rgba(252,253,255,.83);--source:#fff;--selection:#d9eaff;--shadow:0 22px 64px -26px rgba(32,60,110,.22);--border-start:#67d9ec;--border-end:#c7a3ef;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none;-webkit-font-smoothing:antialiased;scroll-behavior:smooth;scroll-padding-top:28px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.6}body::before{content:"";position:absolute;inset:0 0 auto;height:780px;z-index:-1;background:radial-gradient(ellipse at 78% 35%,rgba(166,207,255,.14),transparent 48%),radial-gradient(ellipse at 65% 70%,rgba(211,189,248,.12),transparent 42%);pointer-events:none}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a,button{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible{outline:3px solid var(--blue);outline-offset:5px}a:hover{color:var(--blue)}[hidden]{display:none!important}.page-shell{max-width:1200px;margin:0 auto;padding:0 52px}.site-header{height:112px;display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{display:inline-flex;align-items:center;gap:10px;font-size:21px;font-weight:650;letter-spacing:-.65px}.wordmark img{flex-shrink:0}nav{display:flex;gap:30px;align-items:center;font-size:14px;font-weight:550}nav a{display:flex;gap:10px;align-items:center;min-height:44px}.appearance-button{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);background:var(--glass);color:var(--muted);border-radius:50%}.appearance-button:hover{color:var(--blue);border-color:var(--blue)}.hero{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;padding:77px 0 105px}.eyebrow{font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.6;color:var(--muted);margin:0 0 20px}.hero .eyebrow{display:flex;align-items:center;gap:8px}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--blue);flex-shrink:0}h1{font-size:clamp(42px,4.7vw,62px);font-weight:650;line-height:1.08;letter-spacing:-2.9px;margin:0 0 24px}h1 span{color:var(--muted)}.hero-description{max-width:385px;margin:0 0 32px;color:var(--muted);font-size:17px;line-height:1.7}.download-action{display:flex;flex-direction:column;align-items:flex-start}.button{display:inline-flex;justify-content:center;align-items:center;gap:12px;min-height:52px;padding:13px 24px;border:1px solid rgba(255,255,255,.14);border-radius:14px;font-size:15px;font-weight:650;letter-spacing:-.15px;line-height:1.5;text-align:center}.primary{color:white;background:linear-gradient(180deg,#228bff,#006bea);box-shadow:0 3px 8px rgba(0,108,230,.1),inset 0 1px 0 rgba(255,255,255,.22)}a.primary:hover{color:white;background:linear-gradient(180deg,#0879ee,#0059ca);transform:translateY(-1px)}.primary:disabled{cursor:default;background:linear-gradient(180deg,#2a79ce,#2667b3);box-shadow:inset 0 1px 0 rgba(255,255,255,.18)}.release-note{font-size:11px;color:var(--muted);margin:11px 0 0;line-height:1.6;max-width:300px}.quiet-link{display:inline-flex;gap:10px;align-items:center;min-height:44px;font-size:12px;color:var(--muted);margin-top:19px}.demo{margin:0;position:relative;min-width:0;padding:0 0 20px 7px;isolation:isolate}.source-window{width:91%;margin:0 0 0 auto;border:1px solid var(--line);border-radius:15px;background:var(--source);box-shadow:0 10px 32px -18px rgba(30,50,90,.15);overflow:hidden;transform:rotate(1.5deg)}.window-bar{height:42px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);color:var(--muted);font-size:10px}.traffic-lights{display:flex;gap:5px}.traffic-lights i{width:7px;height:7px;border-radius:50%;background:#f17872}.traffic-lights i:nth-child(2){background:#e6bc61}.traffic-lights i:nth-child(3){background:#7bbd91}.window-symbol{width:28px}.source-content{padding:29px 30px 91px;font-size:14px;line-height:2.2}.source-eyebrow{font-size:10px;letter-spacing:.16em;color:var(--muted);margin:0 0 5px}.source-content h2{font-size:24px;font-weight:550;letter-spacing:.04em;margin:0 0 12px}.source-content p:not(.source-eyebrow){color:var(--muted);margin:0 0 14px}mark{background:var(--selection);color:var(--text);padding:5px 3px;border-radius:2px}.selection-caret{display:inline-block;width:2px;height:21px;background:var(--blue);vertical-align:middle}.source-lines{display:grid;gap:11px;margin-top:24px}.source-lines span{background:var(--line);height:5px;max-width:88%;border-radius:3px;opacity:.5}.source-lines span:last-child{width:63%}.glass{border:1px solid transparent;background:linear-gradient(var(--glass),var(--glass)) padding-box,linear-gradient(125deg,var(--border-start),#c4d4ff 44%,var(--border-end)) border-box;background-clip:padding-box,border-box;box-shadow:var(--shadow);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}.reader{position:relative;width:96%;margin:-138px 0 0;z-index:1;padding:22px 23px 17px;border-radius:20px;outline:5px solid rgba(158,198,250,.06);outline-offset:-6px}.reader-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;color:var(--muted);margin-bottom:29px}.reader-brand{display:inline-flex;align-items:center;gap:7px;color:var(--text);font-size:12px;font-weight:650}.reader-label{font-size:10px}.annotated-text{display:flex;align-items:baseline;gap:8px;font-size:26px;line-height:1.6;letter-spacing:0;white-space:nowrap}.annotated-text ruby{display:inline-flex;flex-direction:column-reverse;align-items:center;min-width:24px;font-weight:500}.annotated-text rt{display:block;color:var(--blue);font-size:10px;font-weight:500;line-height:1.5;letter-spacing:0;margin-bottom:3px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.reader-english{font-size:14px;line-height:1.5;margin:15px 0 18px}.reader-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:13px;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.demo-toggles{display:flex;gap:6px}.demo-toggles button{border:1px solid var(--line);border-radius:20px;min-height:35px;padding:5px 12px;background:transparent;color:var(--muted);font-size:10px}.demo-toggles button[aria-pressed=true]{color:var(--blue);background:var(--blue-light);border-color:color-mix(in srgb,var(--blue) 22%,transparent)}.demo-toggles button:hover{border-color:var(--blue)}.reader.hide-pinyin rt{visibility:hidden}.reader.hide-english .reader-english{visibility:hidden}.demo figcaption{margin:23px 0 0;display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.shortcut{display:inline-flex;gap:3px}kbd{font:inherit;font-size:11px;min-width:19px;height:21px;border:1px solid var(--line);border-radius:4px;text-align:center;background:var(--glass);box-shadow:0 1px 0 var(--line)}.illustration-label{display:block;flex-basis:100%;text-align:center;font-size:9px;opacity:.8}.how-section{padding:49px 0 55px;border-top:1px solid var(--line)}.section-heading .eyebrow{margin-bottom:9px}h2{font-size:28px;line-height:1.2;letter-spacing:-.9px;font-weight:600;margin:0}.steps{list-style:none;padding:0;margin:35px 0 30px;display:grid;grid-template-columns:repeat(3,1fr);gap:43px}.step-number{font-size:12px;color:var(--blue);font-weight:600}.steps h3{font-size:16px;font-weight:600;margin:13px 0 9px;letter-spacing:-.25px}.steps p{font-size:13px;line-height:1.8;color:var(--muted);margin:0;max-width:300px}.inline-shortcut{font-size:14px;letter-spacing:1px}.window-mode-note{border-top:1px solid var(--line);padding-top:24px;display:flex;gap:12px;align-items:flex-start;max-width:880px;font-size:12px;line-height:1.8;color:var(--muted);margin:0}.window-mode-note svg{flex-shrink:0;margin-top:1px;color:var(--blue)}.window-mode-note strong{font-weight:550;color:var(--text)}.download-section{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:39px 35px;border-radius:22px;scroll-margin-top:24px}.download-copy{display:flex;align-items:center;gap:21px}.download-copy .eyebrow{font-size:10px;margin-bottom:8px}.download-copy h2{font-size:25px}.download-copy p:last-child{font-size:12px;color:var(--muted);margin:10px 0 0}.download-section .download-action{align-items:center;text-align:center;flex-shrink:0}.account-note{font-size:10px;color:var(--muted);margin:7px 0 0}.privacy-section{display:flex;align-items:flex-start;gap:13px;padding:48px 3px 41px;color:var(--muted);max-width:930px}.privacy-section svg{flex-shrink:0;margin-top:2px}.privacy-section h2{font-size:13px;color:var(--text);letter-spacing:0;line-height:1.7;margin-bottom:7px}.privacy-section p{font-size:11px;line-height:1.85;margin:0 0 7px}footer{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);padding:24px 0 31px;color:var(--muted);font-size:10px}footer .wordmark{font-size:13px;letter-spacing:-.35px;color:var(--text);gap:7px}footer p{margin:0}footer>a:last-child{min-height:44px;display:flex;align-items:center;gap:8px}.skip-link{position:fixed;top:12px;left:12px;z-index:10;background:var(--source);color:var(--blue);padding:10px 18px;border-radius:8px;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg:#10131c;--text:#ecedf4;--muted:#a3acbd;--blue:#76b4ff;--blue-light:#1b2a43;--line:#303746;--glass:rgba(22,27,40,.94);--source:#191e2b;--selection:#244268;--shadow:0 22px 64px -26px rgba(0,0,0,.6);--border-start:#347b96;--border-end:#766095}}
:root[data-theme=dark]{color-scheme:dark;--bg:#10131c;--text:#ecedf4;--muted:#a3acbd;--blue:#76b4ff;--blue-light:#1b2a43;--line:#303746;--glass:rgba(22,27,40,.94);--source:#191e2b;--selection:#244268;--shadow:0 22px 64px -26px rgba(0,0,0,.6);--border-start:#347b96;--border-end:#766095}
@media(max-width:1000px){.page-shell{padding:0 36px}.hero{gap:28px;padding:60px 0 78px}h1{font-size:49px;letter-spacing:-2.3px}.hero-description{font-size:15px}.hero .eyebrow{font-size:10px}.source-content{padding:25px 24px 100px;font-size:12px}.source-content h2{font-size:21px}.reader{padding:19px 18px 15px;width:100%}.annotated-text{font-size:23px;gap:5px}.annotated-text ruby{min-width:21px}.annotated-text rt{font-size:9px}.reader-label{font-size:9px}.reader-english{font-size:12px}.download-section{padding:30px 25px}.download-copy{gap:13px}.download-copy h2{font-size:22px}.download-copy>img{width:36px;height:36px}.steps{gap:30px}}
@media(max-width:760px){.page-shell{padding:0 25px;max-width:590px}.site-header{height:92px}nav{gap:16px;font-size:12px}.wordmark{font-size:20px}.how-link{display:none}.appearance-button{width:40px;height:40px}.hero{grid-template-columns:1fr;gap:51px;padding:40px 0 50px}.hero-copy{text-align:center}.hero .eyebrow{justify-content:center;font-size:11px;margin-bottom:19px}h1{font-size:clamp(44px,9.5vw,59px);letter-spacing:-2.5px}.hero-description{max-width:380px;margin:0 auto 27px;font-size:16px}.download-action{align-items:center}.quiet-link{margin-top:15px}.demo{width:100%;max-width:445px;margin:0 auto;padding-left:0}.source-window{width:91%}.source-content{padding:25px 28px 93px;font-size:14px}.source-content h2{font-size:24px}.reader{width:96%;padding:21px 23px 16px}.annotated-text{font-size:26px;gap:8px}.annotated-text ruby{min-width:24px}.annotated-text rt{font-size:10px}.reader-english{font-size:14px}.reader-label{font-size:10px}.how-section{padding:35px 0 37px}.section-heading{text-align:center}h2{font-size:25px}.steps{grid-template-columns:1fr;gap:24px;margin-top:29px}.steps li{padding-left:37px;position:relative}.step-number{position:absolute;left:0;top:2px}.steps h3{margin:0 0 7px}.steps p{max-width:none;font-size:13px}.window-mode-note{font-size:12px}.download-section{flex-direction:column;align-items:center;text-align:center;padding:29px 20px;gap:25px}.download-copy{flex-direction:column;gap:16px}.download-copy>img{width:42px;height:42px}.download-copy h2{font-size:25px}.privacy-section{padding-top:35px;gap:10px}footer{flex-wrap:wrap;gap:9px}footer p{display:none}}
@media(max-width:370px){.page-shell{padding:0 18px}nav{gap:11px}.hero .eyebrow{font-size:10px}.annotated-text{font-size:23px;gap:5px}.annotated-text ruby{min-width:22px}.annotated-text rt{font-size:9px}.reader{padding:19px 16px 15px}.reader-label{font-size:9px}.source-content{padding-left:24px;padding-right:24px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}a.primary:hover{transform:none}}
@media(prefers-reduced-transparency:reduce){:root{--glass:#fcfdff}.glass{backdrop-filter:none;-webkit-backdrop-filter:none}:root[data-theme=dark]{--glass:#161b28}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--glass:#161b28}}}
@media(prefers-contrast:more){:root{--muted:#404958;--line:#7b8594}:root[data-theme=dark]{--muted:#c7ceda;--line:#8490a3}.glass{border:2px solid var(--blue)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--muted:#c7ceda;--line:#8490a3}}}
@media(forced-colors:active){.glass,.button,.source-window{border:1px solid CanvasText}.primary{color:ButtonText;background:ButtonFace}.source-lines span{background:CanvasText}mark{background:Highlight;color:HighlightText}}