/* finesse · IKO · friendly editorial · real images and labelled local experiences · paper/graphite · CSS and WAAPI */
@font-face{font-family:"IKO Site Hand";src:url('/iko/site/fonts/iko-hand.woff2') format('woff2');font-display:swap;font-weight:400}
:root{color-scheme:light;--bg:#f3f2ee;--surface:#fffefc;--fill:#eae8e2;--ink:#17191c;--muted:#62676d;--line:#dcdad4;--accent:#487bff;--accent-soft:#e4ebff;--green:#146d4b;--red:#cf3245;--plum:#794786;--action:#17191c;--on-action:#f6f4ef;--ease:cubic-bezier(.2,.8,.2,1);--display:"IKO Site Hand","Hiragino Maru Gothic ProN","PingFang SC","Microsoft YaHei",sans-serif}
:root[data-theme=dark]{color-scheme:dark;--bg:#0e1013;--surface:#191c21;--fill:#22262c;--ink:#f6f4ef;--muted:#abb0b9;--line:#303640;--accent:#82a5ff;--accent-soft:#242f47;--green:#8ed6ae;--red:#ff8392;--plum:#d7a6df;--action:#f6f4ef;--on-action:#17191c}
:root[data-palette=forest]{--accent:#146d4b;--accent-soft:#e4eee6}:root[data-palette=plum]{--accent:#794786;--accent-soft:#efe5f2}:root[data-theme=dark][data-palette=forest]{--accent:#8ed6ae;--accent-soft:#1b3329}:root[data-theme=dark][data-palette=plum]{--accent:#d7a6df;--accent-soft:#382d3f}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px;overflow-x:clip}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}a{color:inherit;text-decoration:none}a,button{-webkit-tap-highlight-color:transparent}svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round}img{display:block;max-width:100%;height:auto}p,h1,h2,h3,figure{margin:0}p{color:var(--muted)}h1,h2,h3{font-weight:650;letter-spacing:-.045em;line-height:1.28}h1{font-size:clamp(48px,6.5vw,86px)}h2{font-size:clamp(38px,5vw,64px)}h3{font-size:24px}button:disabled{cursor:wait}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}::selection{background:var(--accent-soft)}.wrap{width:min(1120px,calc(100% - 80px));margin-inline:auto}.hand{font-family:var(--display);font-weight:400;letter-spacing:-.02em}.blue-text{color:var(--accent)}.green-text{color:var(--green)}.plum-text{color:var(--plum)}.skip{position:fixed;left:12px;top:12px;z-index:100;background:var(--surface);padding:10px 20px;border-radius:12px;transform:translateY(-200%)}.skip:focus{transform:none}
.site-header{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;flex-shrink:0}.brand img{width:70px;height:70px;border-radius:18px}.site-header nav{display:flex;gap:38px;color:var(--muted);font-size:14px}.site-header nav a{padding:12px 0}.site-header nav a:hover{color:var(--ink)}.header-tools{display:flex;align-items:center;gap:12px}.icon-button{width:44px;height:44px;display:grid;place-items:center;border-radius:50%}.icon-button:hover{background:var(--fill)}.icon-button svg{width:22px;height:22px;stroke-width:1.7}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:13px 25px;min-height:52px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .22s var(--ease),background .22s}.button.primary{background:var(--action);color:var(--on-action)}.button:hover{transform:translateY(-2px)}.button:active{transform:scale(.97)}.button.small{min-height:42px;padding:8px 20px;font-size:13px;gap:12px}.text-link{display:inline-flex;align-items:center;min-height:44px;font-size:14px}.text-link:hover{text-decoration:underline;text-underline-offset:5px}
.hero{text-align:center;padding:65px 0 42px}.hero-logo{width:144px;display:block;margin:0 auto 28px;padding:0;line-height:0;border-radius:14px;touch-action:manipulation}.hero-logo svg{width:100%;height:auto;overflow:visible;stroke:none}.eye-sculpture{transform-origin:735px 512px;animation:friendly-blink 7s infinite}.eye-white{fill:var(--bg)}.eye-pupil{fill:var(--accent);transform:translate(var(--px,0px),var(--py,0px));transition:transform .17s var(--ease)}.eye-shine{fill:#fffefc}.eye-sculpture.is-offscreen,body.is-hidden .eye-sculpture{animation-play-state:paused}.hero .lead{margin-top:24px;font-size:20px;line-height:1.7}.hero-actions{display:flex;justify-content:center;gap:28px;align-items:center;margin-top:28px}.free-statement{font-family:var(--display);font-size:21px;color:var(--ink);margin-top:25px}.service-note{font-size:13px;max-width:650px;margin:8px auto 0;line-height:1.8}
.hero-showcase{padding-block:20px 50px}.hero-devices{display:grid;grid-template-columns:1fr 1.14fr .65fr;gap:34px;align-items:center;padding:32px 52px 0}.device{background:#252a2f;border:2px solid #545960;border-radius:25px;padding:9px;box-shadow:0 25px 45px -22px #19222c42;position:relative;min-width:0;isolation:isolate}.device:before{content:"";position:absolute;width:4px;height:4px;border-radius:50%;background:#747c86;top:3px;left:50%;z-index:1}.device.portrait{max-width:100%;width:100%}.device.landscape{width:100%;border-radius:22px;padding:8px}.screen-open{display:block;padding:0;width:100%;line-height:0;border-radius:17px;overflow:hidden;cursor:zoom-in;background:#f3f2ee}.screen-open img{width:100%;height:auto}.secondary-device{transform:rotate(-6deg) translateY(28px)}.main-device{transform:rotate(3deg)}.showcase-copy{padding-left:7px}.showcase-copy>.hand{display:block;font-size:32px;line-height:1.5;color:var(--accent)}.showcase-copy p{margin-top:20px;font-size:16px}.showcase-copy a{margin-top:14px}.image-caption{font-size:12px;line-height:1.9;color:var(--muted);text-align:center;margin-top:26px}
.chapter{padding-block:115px}.chapter-heading{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:65px}.chapter-heading>p{font-size:18px;line-height:1.85;max-width:460px}.chapter-heading.centered{display:block;text-align:center}.chapter-heading.centered>p{margin:24px auto 0}.feature-pair{display:grid;grid-template-columns:1.27fr 1fr;gap:65px;align-items:center}.feature-copy h3{margin-bottom:20px}.feature-copy>p{font-size:15px;line-height:1.9;margin-bottom:18px}.plain-list{list-style:none;padding:0;margin:28px 0;display:grid;gap:22px}.plain-list li{display:flex;gap:13px}.plain-list strong{font-weight:600;font-size:15px}.plain-list p{font-size:13px;margin-top:4px}.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none;margin-top:10px}.dot.red{background:var(--red)}.dot.green{background:var(--green)}.feature-copy .support-note{font-size:13px;border-top:1px solid var(--line);padding-top:18px;margin:23px 0 0}
.notes-chapter{background:var(--surface);border-block:1px solid var(--line)}.notes-story{display:grid;grid-template-columns:.8fr 1fr;gap:120px;align-items:center;max-width:940px;margin:auto}.note-editor{max-width:350px!important;transform:rotate(-3deg)}.notes-points{display:grid;gap:45px}.notes-points h3{font-family:var(--display);font-size:31px;font-weight:400;letter-spacing:0;margin-bottom:15px}.notes-points p{font-size:16px;line-height:1.9}.schedule-pair{grid-template-columns:.9fr 1.3fr}.focus-chapter{background:var(--surface);border-block:1px solid var(--line)}.cafe-stage{border-radius:24px;overflow:hidden;background:var(--bg)}.cafe-stage>.screen-open{border-radius:0}.cafe-stage img{width:100%}.cafe-stage figcaption{display:flex;align-items:center;gap:36px;flex-wrap:wrap;padding:28px 34px}.cafe-stage h3{font:400 34px/1.5 var(--display);white-space:nowrap}.cafe-stage h3 span{font-family:inherit;font-size:13px;letter-spacing:.14em;margin-left:7px}.cafe-stage p{font-size:14px;flex:1}.cafe-stage .image-caption{margin:0;font-size:12px}.coming-scenes{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:50px}.coming-scenes img{aspect-ratio:16/9;object-fit:cover;border-radius:16px}.coming-scenes article>div{padding:20px 2px}.coming-scenes h3{font:400 28px/1.4 var(--display)}.coming-scenes h3 span{font:500 12px/1.4 -apple-system,sans-serif;letter-spacing:.1em;margin-left:8px}.coming-scenes p{font-size:14px;margin-top:9px}.coming-scenes+.image-caption{margin-top:0}
.personal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:50px}.personal-grid h3{font:400 28px/1.4 var(--display);margin-bottom:16px}.personal-grid p{font-size:15px;line-height:1.9}.palette-picker{display:flex;gap:12px;margin-top:22px}.palette{width:44px;height:44px;position:relative;border-radius:50%}.palette:before{content:"";position:absolute;inset:12px;border-radius:50%;background:#487bff}.palette.forest:before{background:#146d4b}.palette.plum:before{background:#794786}.palette.active{outline:1px solid var(--ink);outline-offset:-6px}.questions-section{background:var(--surface);border-block:1px solid var(--line)}.faq-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:80px}.faq-list details{border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:15px}.faq-list summary,.checksum summary{display:flex;justify-content:space-between;align-items:center;gap:20px;cursor:pointer;list-style:none;min-height:44px;font-size:16px}.faq-list summary::-webkit-details-marker,.checksum summary::-webkit-details-marker{display:none}.faq-list summary span,.checksum summary span{font-size:25px;color:var(--muted);font-weight:300;transition:transform .25s var(--ease)}details[open]>summary span{transform:rotate(45deg)}.faq-list p{font-size:14px;line-height:1.9;margin:16px 22px 10px 0}
.download-box{display:grid;grid-template-columns:1fr 1fr;background:var(--surface);border:1px solid var(--line);border-radius:24px}.release-main,.download-details{padding:42px}.release-main h3{font-size:32px}.release-main #release-meta{font-size:13px;margin-top:8px}.release-main .download-guidance{font-size:15px;line-height:1.9;margin:25px 0}.download-details{border-left:1px solid var(--line)}.download-details h3{font-family:var(--display);font-weight:400;font-size:29px;margin-bottom:18px}.download-details p{font-size:14px;line-height:1.9}.checksum{border-top:1px solid var(--line);margin-top:24px;padding-top:10px}.checksum summary{font-size:13px}.checksum code{display:block;overflow-wrap:anywhere;font-size:12px;line-height:1.9;color:var(--muted);white-space:pre-wrap;margin-top:12px}.quiet-button{min-height:44px;padding:8px 0;text-decoration:underline;text-underline-offset:5px}
.history-section{padding-bottom:75px}.history-heading{display:flex;align-items:center;justify-content:space-between;gap:25px;padding-bottom:25px;border-bottom:1px solid var(--line)}.history-heading h2{font:400 32px/1.4 var(--display)}.history-item{display:grid;grid-template-columns:140px 1fr;gap:40px;padding:25px 0;border-bottom:1px solid var(--line)}.history-version{font-size:15px}.history-version small{display:block;font-size:12px;color:var(--muted);margin-top:4px}.history-item h3{font-size:17px;letter-spacing:0;line-height:1.5;margin-bottom:7px}.history-item p{font-size:14px;line-height:1.9}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:35px;border-top:1px solid var(--line);padding-block:25px}.site-footer>div{display:flex;align-items:center;gap:25px;flex-wrap:wrap;color:var(--muted);font-size:13px}.site-footer a{min-height:44px;display:inline-flex;align-items:center}.site-footer a:hover{color:var(--ink)}
dialog{color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:32px;width:min(600px,calc(100% - 32px));max-height:90vh;overflow-y:auto}dialog::backdrop{background:#0e1013b3}dialog h2{font:400 32px/1.5 var(--display);margin:15px 0}dialog p{font-size:14px;line-height:1.9;margin:20px 0}.dialog-close{float:right;font-size:30px;margin:-12px -10px 0 0}#image-dialog{width:min(1200px,calc(100% - 24px));padding:14px 20px 20px}#image-dialog .dialog-close{float:none;margin:0 0 10px auto}#full-image{max-height:76vh;max-width:100%;width:auto;margin:auto;object-fit:contain;border-radius:8px}#image-caption{font-size:13px;text-align:center;margin:15px 0 0}
@keyframes friendly-blink{0%,65%,69%,100%{transform:scaleY(1)}67%{transform:scaleY(.12)}}
@media(max-width:1000px){.hero-devices{padding-inline:20px;gap:25px}.showcase-copy>.hand{font-size:27px}.chapter-heading{gap:35px}.chapter-heading>p{font-size:16px}.feature-pair{gap:36px}.notes-story{gap:70px}.cafe-stage figcaption{gap:25px}.cafe-stage .image-caption{width:100%;text-align:left}.personal-grid{gap:30px}.faq-layout{gap:45px}.release-main,.download-details{padding:32px}}
@media(max-width:700px){.wrap{width:calc(100% - 40px)}.site-header{height:74px;gap:16px}.brand img{width:60px;height:60px;border-radius:15px}.site-header nav{gap:20px;font-size:12px}.header-tools{gap:5px}.button.small{font-size:12px;padding:8px 14px}.hero{padding-top:46px}.hero-logo{width:114px;margin-bottom:23px}.hero .lead{font-size:18px}.service-note{max-width:450px}.hero-devices{grid-template-columns:1fr 1.1fr;gap:22px;padding-inline:16px}.showcase-copy{grid-column:1/-1;text-align:center;padding-top:18px}.showcase-copy>.hand{font-size:29px}.showcase-copy p{display:none}.showcase-copy a{margin-top:5px}.device{border-radius:20px;padding:7px}.screen-open{border-radius:13px}.secondary-device{transform:rotate(-4deg) translateY(12px)}.main-device{transform:rotate(3deg)}.hero-showcase{padding-bottom:25px}.chapter{padding-block:78px}.chapter-heading{display:block;margin-bottom:40px}.chapter-heading>p{margin-top:24px;font-size:16px}.feature-pair,.schedule-pair{grid-template-columns:1fr;gap:35px}.feature-copy>p{font-size:15px}.feature-copy h3{font-size:23px}.schedule-pair .device{grid-row:1}.notes-story{grid-template-columns:.85fr 1fr;gap:30px}.notes-points{gap:25px}.notes-points h3{font-size:25px;margin-bottom:10px}.notes-points p{font-size:14px}.coming-scenes{gap:22px;margin-top:32px}.coming-scenes h3{font-size:25px}.coming-scenes p{font-size:13px}.personal-grid{grid-template-columns:1fr;gap:32px}.personal-grid article{border-bottom:1px solid var(--line);padding-bottom:25px}.personal-grid h3{font-size:28px}.faq-layout{grid-template-columns:1fr;gap:35px}.download-box{grid-template-columns:1fr}.download-details{border-left:0;border-top:1px solid var(--line)}.release-main .button{width:100%}.history-item{grid-template-columns:90px 1fr;gap:24px}.site-footer>div{gap:10px 20px;justify-content:end;font-size:12px}.site-footer>div>span{width:100%;text-align:right}.history-item p{font-size:13px}}
@media(max-width:430px){html{scroll-padding-top:24px}.wrap{width:calc(100% - 36px)}.site-header nav{display:none}.hero{padding-top:38px}.hero h1{font-size:52px;line-height:1.28}.hero .lead{font-size:16px;margin-top:20px}.hero-actions{gap:21px;margin-top:25px}.button{font-size:13px;padding:12px 20px;min-height:48px;gap:17px}.hero-actions .text-link{font-size:13px}.free-statement{font-size:20px;margin-top:24px}.service-note{font-size:12px;margin-top:8px}.hero-devices{padding:15px 8px 0;gap:17px}.device{padding:5px;border-radius:15px}.screen-open{border-radius:9px}.device:before{width:3px;height:3px;top:1px}.showcase-copy{padding-top:16px}.image-caption{font-size:11px;margin-top:18px}.chapter{padding-block:64px}h2{font-size:37px;line-height:1.35}.chapter-heading{margin-bottom:35px}.chapter-heading>p{font-size:15px;margin-top:21px}.feature-pair{gap:28px}.device.landscape{border-radius:14px;padding:5px}.feature-copy h3{font-size:22px}.plain-list p{font-size:13px}.notes-story{grid-template-columns:1fr;gap:42px}.note-editor{max-width:255px!important;margin:auto}.notes-points{gap:28px}.notes-points h3{font-size:28px}.notes-points p{font-size:15px}.cafe-stage{border-radius:14px}.cafe-stage figcaption{padding:22px;display:block}.cafe-stage h3{font-size:31px}.cafe-stage p{margin-top:12px}.cafe-stage .image-caption{display:block;margin-top:12px}.coming-scenes{grid-template-columns:1fr;gap:23px}.coming-scenes article{display:grid;grid-template-columns:45% 1fr;gap:19px;align-items:center}.coming-scenes article>div{padding:0}.coming-scenes img{border-radius:12px}.coming-scenes h3{font-size:24px}.coming-scenes h3 span{display:block;margin:4px 0 0;font-size:10px}.coming-scenes p{font-size:12px}.coming-scenes+.image-caption{text-align:left;margin-top:23px}.faq-list summary{font-size:15px}.faq-list p{font-size:13px}.release-main,.download-details{padding:27px}.release-main h3{font-size:29px}.history-heading{align-items:start;gap:14px}.history-heading h2{font-size:27px}.history-heading .text-link{font-size:12px;text-align:right}.history-item{grid-template-columns:70px 1fr;gap:20px}.history-version{font-size:13px}.history-version small{font-size:11px}.history-item h3{font-size:15px}.history-item p{font-size:12px}.site-footer{align-items:start;gap:18px}.site-footer>div{gap:4px 16px;max-width:235px;font-size:11px}.site-footer .brand img{width:60px;height:60px}dialog{padding:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.secondary-device,.main-device,.note-editor{transform:none}}
.skip:not(:focus){clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
/* Function-led interaction; real screenshots retain their application chrome. */
.chapter-nav{position:sticky;top:0;z-index:15;background:var(--bg);border-block:1px solid var(--line)}
.chapter-nav>div{display:flex;align-items:center;justify-content:center;gap:24px;overflow-x:auto;scrollbar-width:none}
.chapter-nav>div::-webkit-scrollbar{display:none}.chapter-nav a{display:flex;align-items:center;justify-content:center;min-height:54px;padding:8px 15px;white-space:nowrap;color:var(--muted);font-size:13px;border-bottom:2px solid transparent;flex:none}
.chapter-nav a[aria-current]{color:var(--ink);border-bottom-color:var(--accent)}
.device-top{display:flex;align-items:center;justify-content:space-between;min-height:24px;padding:5px 12px;background:var(--surface);color:var(--muted);font:600 9px/1.4 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:.12em}
.device-signals{display:flex;align-items:center;gap:6px}.device-signals svg{width:14px;height:10px;fill:none;stroke:currentColor;stroke-width:1.7}
.screen-viewport,.full-viewport{display:block;overflow:hidden}.portrait .screen-viewport>img{margin-top:-3.333333%}.landscape .screen-viewport>img{margin-top:-2.083333%}
#full-screen{margin:auto;overflow:hidden;border-radius:12px}#full-screen .device-top{display:none}#full-screen.is-portrait .device-top,#full-screen.is-landscape .device-top{display:flex}
#full-screen.is-portrait{width:min(100%,calc((75vh - 24px) * 1800 / 2820))}#full-screen.is-landscape{width:min(100%,calc((75vh - 24px) * 2880 / 1740))}#full-screen.is-poster{width:min(100%,calc(75vh * 1672 / 941))}
#full-image{max-height:none;width:100%;border-radius:0}#full-screen.is-portrait #full-image{margin-top:-3.333333%}#full-screen.is-landscape #full-image{margin-top:-2.083333%}
.ai-chapter{background:var(--surface);border-block:1px solid var(--line)}.segmented{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:5px;margin:0 auto 32px}
.segmented>button{padding:10px 22px;min-height:44px;border-radius:999px;color:var(--muted);font-size:14px;transition:background .22s var(--ease),color .22s var(--ease)}
.segmented>button:hover{background:var(--fill);color:var(--ink)}.segmented>button[aria-pressed=true]{background:var(--action);color:var(--on-action)}
.answer-playground{background:var(--bg);border:1px solid var(--line);border-radius:24px;padding:30px}.answer-demo-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:30px;align-items:stretch}
.demo-context{padding:14px 12px 8px}.demo-context h3{font-family:var(--display);font-size:25px;font-weight:400;margin-bottom:23px}.demo-context>p{font-size:16px;line-height:2;min-height:110px}
.question-highlight{border-left:3px solid var(--accent);padding:8px 0 8px 18px;margin:24px 0 12px}.question-highlight>span{font-size:12px;color:var(--muted)}.question-highlight h4{font-size:20px;line-height:1.65;font-weight:600;margin:10px 0 0;letter-spacing:-.02em}
.demo-context .text-link{color:var(--accent);font-size:14px;padding:10px 0}.demo-answer{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:18px;min-width:0}
.answer-heading{display:flex;align-items:start;gap:18px;flex-wrap:wrap;justify-content:space-between;margin-bottom:21px}.answer-heading h3{font-family:var(--display);font-size:25px;font-weight:400}.answer-heading>span{color:var(--green);font-size:12px;line-height:1.7}
#ai-answer-copy{min-height:195px}#ai-answer-copy p{font-size:16px;line-height:1.95;color:var(--ink);margin-bottom:15px;overflow-wrap:anywhere}.answer-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:24px}.answer-actions .button{white-space:normal}
.button.outline{border:1px solid var(--line);background:transparent}.answer-actions button:disabled{cursor:default;opacity:.5;transform:none}.pending-question{border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.pending-question p{font-size:12px;margin-bottom:8px}.pending-question strong{font-size:14px;font-weight:500;color:var(--accent);line-height:1.8}
.demo-disclosure{text-align:center;font-size:12px;line-height:1.9;margin-top:23px}.mode-explainer{max-width:760px;margin:50px auto 0;text-align:center}.mode-explainer h3{font:400 30px/1.5 var(--display);margin-bottom:20px}.mode-explainer .segmented{margin-bottom:20px}.mode-explainer>p{font-size:15px;min-height:60px;line-height:1.9}
.language-playground{padding:35px;border:1px solid var(--line);border-radius:24px;background:var(--surface)}.language-columns{display:grid;grid-template-columns:1fr 1fr;gap:38px;min-height:210px}.language-columns>div{min-width:0}.language-columns h3{font:400 26px/1.5 var(--display);margin-bottom:20px}.language-columns p{font-size:17px;line-height:1.9;overflow-wrap:anywhere}.language-columns>div+div{border-left:1px solid var(--line);padding-left:38px}.language-columns #assist-result p{color:var(--ink);margin-bottom:14px}.language-columns #assist-result .translation-text{color:var(--accent)}
.feature-explorer{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:65px}.feature-explorer>button{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:28px 0;text-align:left;border-bottom:1px solid var(--line);min-width:0}
.feature-explorer strong{display:block;font:400 26px/1.5 var(--display)}.feature-explorer small{display:block;font-size:14px;line-height:1.8;color:var(--muted);margin-top:8px}.feature-explorer i{font:300 26px/1 -apple-system,sans-serif;font-style:normal;display:grid;place-items:center;flex:none;width:39px;height:39px;border-radius:50%;background:var(--action);color:var(--on-action);transition:transform .25s var(--ease)}.feature-explorer>button:hover i{transform:rotate(90deg)}
#feature-dialog{width:min(680px,calc(100% - 32px));padding:34px}#feature-dialog h2{clear:both;margin-top:22px}#feature-body p{font-size:15px;line-height:1.95;margin-block:20px}
@media(max-width:900px){.chapter-nav>div{gap:10px}.answer-demo-grid{gap:22px}.answer-playground{padding:23px}.demo-answer{padding:23px}.demo-context{padding-inline:4px}.feature-explorer{column-gap:35px}.feature-explorer strong{font-size:23px}}
@media(max-width:700px){.chapter-nav>div{justify-content:start;gap:5px}.chapter-nav a{padding:8px 14px;font-size:12px;min-height:48px}.answer-demo-grid{grid-template-columns:1fr;gap:20px}.demo-context>p{min-height:0}.question-highlight{margin-top:20px}#ai-answer-copy{min-height:0}.language-columns{gap:24px}.language-columns>div+div{padding-left:24px}.feature-explorer{column-gap:28px}.feature-explorer strong{font-size:21px}.feature-explorer small{font-size:12px}.mode-explainer>p{min-height:90px}}
@media(max-width:430px){.chapter-nav>div{width:100%;padding-inline:12px}.chapter-nav a{font-size:12px;padding-inline:13px}.device-top{min-height:16px;padding:3px 7px;font-size:6px}.device-signals{gap:4px}.device-signals svg{width:10px;height:8px}#full-screen .device-top{min-height:24px;font-size:9px;padding:5px 12px}#full-screen .device-signals svg{width:14px;height:10px}
.answer-playground{padding:18px;border-radius:19px}.segmented{gap:3px;margin-bottom:23px}.segmented>button{padding:10px 14px;font-size:13px}.demo-context h3,.answer-heading h3{font-size:24px}.demo-context>p,#ai-answer-copy p{font-size:15px}.question-highlight h4{font-size:18px}.demo-answer{padding:20px}.answer-actions{gap:9px}.answer-actions .button{font-size:12px;padding:9px 16px}.demo-disclosure{font-size:11px;text-align:left}.mode-explainer h3{font-size:28px}.mode-explainer>p{font-size:14px}.language-playground{padding:23px}.language-columns{grid-template-columns:1fr;gap:25px}.language-columns>div+div{border-left:0;border-top:1px solid var(--line);padding:23px 0 0}.language-columns h3{font-size:25px;margin-bottom:15px}.language-columns p{font-size:15px}.feature-explorer{grid-template-columns:1fr}.feature-explorer>button{padding:24px 0}.feature-explorer strong{font-size:25px}.feature-explorer small{font-size:13px}#feature-dialog{padding:26px}#feature-body p{font-size:14px}}