:root{--accent:var(--product-chat);--paper:var(--brand-paper);--ink:var(--brand-ink);--scene-ink:var(--ink);--focus-x:0px;--focus-y:0px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.6 Arial,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}h1,h2,p{margin:0}a{color:inherit;text-decoration:none}button,textarea{font:inherit;color:inherit}button{border:0;background:none;cursor:pointer}button,a{touch-action:manipulation}button:disabled{opacity:.3;cursor:default}:focus-visible{outline:2px solid currentColor;outline-offset:5px}small{font:9px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:1.6px}::selection{color:var(--paper);background:var(--ink)}.skip{position:fixed;top:-100px;left:15px;z-index:110;padding:12px;background:var(--ink);color:var(--paper)}.skip:focus{top:10px}
.chat-header{position:fixed;inset:0 0 auto;z-index:50;height:82px;padding:0 4%;display:flex;justify-content:space-between;align-items:center;color:var(--ink);transition:color .2s;pointer-events:none}.chat-header>*{pointer-events:auto}.brand{display:flex;gap:11px;align-items:center;font-size:23px;font-weight:700;letter-spacing:-1px}.brand img{width:38px;height:38px;color-scheme:light}.brand small{display:block;font-size:8px;letter-spacing:3px;line-height:1;margin-top:3px}.chat-header nav{display:flex;gap:24px;align-items:center;font-size:11px}.chat-header nav button{padding:0;font-size:11px}.launch{padding:11px 17px;border:1px solid currentColor;border-radius:30px}.chat-header.on-dark{color:var(--paper)}.chat-header.on-dark img{color-scheme:dark}.menu-toggle{display:none;font-size:23px}.reading-progress{position:fixed;top:0;left:0;height:2px;background:var(--accent);width:100%;transform:scaleX(0);transform-origin:left;z-index:70}
.chat-intro{display:none;position:fixed;inset:0;background:var(--ink);color:var(--accent);z-index:90;pointer-events:none;overflow:hidden;align-items:center;justify-content:center;gap:4vw;font-size:clamp(62px,13vw,190px);font-weight:800;letter-spacing:-.07em}.chat-intro i{width:2px;height:0;background:var(--accent);animation:intro-line 1s cubic-bezier(.2,.8,.2,1) both}.chat-intro span{animation:intro-word .8s cubic-bezier(.2,.8,.2,1) both}.chat-intro span:nth-of-type(2){animation-delay:.13s}.chat-intro small{position:absolute;bottom:8%;left:4%;color:var(--paper)}.is-entering .chat-intro{display:flex;animation:intro-open .65s .75s cubic-bezier(.75,0,.2,1) both}.is-entering .question-poster h1 span{animation:type-in 1s .75s cubic-bezier(.2,.8,.2,1) both}.is-entering .question-poster h1 span+span{animation-delay:.9s}
.question-story{height:480svh}.question-stage{height:100svh;min-height:740px;position:sticky;top:0;overflow:hidden;background:var(--accent);isolation:isolate;color:var(--scene-ink)}.registration-grid{position:absolute;inset:0;opacity:.14;pointer-events:none;background-image:linear-gradient(currentColor 1px,transparent 1px),linear-gradient(90deg,currentColor 1px,transparent 1px);background-size:20vw 20vw;mask-image:linear-gradient(transparent,#000 38%,#000)}.stage-label{position:absolute;top:111px;left:4%;right:4%;display:flex;justify-content:space-between;font:9px ui-monospace;letter-spacing:1.7px;z-index:15}.question-poster{position:absolute;inset:0;z-index:5;pointer-events:none;will-change:opacity,transform}.question-poster h1{position:absolute;left:4%;top:23%;font-size:clamp(65px,7.3vw,110px);font-weight:700;line-height:1.12;letter-spacing:-.07em;width:59%;overflow-wrap:anywhere}.question-poster h1 span{display:block}.question-poster h1 span+span{font-size:.76em;margin-top:18px}.question-poster p{position:absolute;left:4.4%;bottom:20%;max-width:300px;font-size:13px;line-height:1.85}.poster-outline{position:absolute;bottom:4%;left:3%;font-size:clamp(150px,24vw,360px);font-weight:800;color:transparent;-webkit-text-stroke:1px #19191718;letter-spacing:-.08em;line-height:1}
.focus-window{position:absolute;left:59%;top:22%;width:34%;height:59%;z-index:4;transform:translate(var(--focus-x),var(--focus-y));will-change:left,top,width,height,transform;clip-path:inset(0 round 50%);background:var(--ink);color:var(--paper)}.question-core{position:absolute;inset:0;color:var(--accent);display:flex;align-items:center;justify-content:center;flex-direction:column;z-index:3;width:100%;padding:0}.question-core b{font:700 clamp(130px,20vw,310px)/.75 Arial;letter-spacing:-.1em;margin-left:-.05em;transition:transform .4s}.question-core:hover b{transform:rotate(-12deg) scale(1.07)}.question-core>span{font-size:12px;letter-spacing:6px;margin-top:30px}.question-core small{font-size:7px;margin-top:12px;letter-spacing:1.4px}.focus-crosshair{position:absolute;inset:15%;z-index:5;pointer-events:none}.focus-crosshair i{width:15px;height:15px;border-color:var(--accent);border-style:solid;border-width:1px 0 0 1px;position:absolute;top:0;left:0}.focus-crosshair i:nth-child(2){left:auto;right:0;transform:rotate(90deg)}.focus-crosshair i:nth-child(3){top:auto;bottom:0;left:auto;right:0;transform:rotate(180deg)}.focus-crosshair i:nth-child(4){top:auto;bottom:0;transform:rotate(270deg)}.workspace-screen{width:100%;height:100%;padding:0;position:absolute;inset:0;opacity:0;z-index:2;pointer-events:none;background:var(--ink);cursor:zoom-in}.workspace-screen img{width:100%;height:100%;object-fit:contain;display:block}.workspace-screen>span{position:absolute;bottom:0;left:0;right:0;padding:10px 15px;background:#191917e8;color:var(--paper);font-size:9px;letter-spacing:1px;text-align:left}.focus-caption{position:absolute;right:5%;bottom:11.5%;width:32%;z-index:7;text-align:right;pointer-events:none}.focus-caption p{font-size:11px;margin-top:9px}.workspace-title{position:absolute;left:4%;top:18%;z-index:6;opacity:0;pointer-events:none}.workspace-title h2{font-size:clamp(48px,5vw,75px);line-height:1.04;letter-spacing:-4px;margin-top:12px}.workspace-title p{font-size:11px;line-height:1.9;margin-top:18px}.process-type{position:absolute;right:5%;top:21%;width:40%;z-index:7;opacity:0;pointer-events:none}.process-type>div{display:flex;flex-direction:column;padding:16px 0;border-top:1px solid #ede9e133}.process-type small{color:var(--accent)}.process-type strong{font-weight:500;font-size:clamp(30px,4.1vw,61px);line-height:1.2;letter-spacing:-3px;margin-top:6px}.process-type p{font-size:11px;color:#b4aea5;margin-top:15px;line-height:1.9}.word-rails{position:absolute;inset:0;z-index:9;opacity:0;pointer-events:none;overflow:hidden}.word-rails>div{position:absolute;left:0;top:25%;display:flex;gap:24px;white-space:nowrap;font-size:clamp(50px,9vw,133px);font-weight:650;line-height:1;letter-spacing:-5px;color:var(--accent);will-change:transform}.word-rails>div+div{top:69%;color:var(--paper);font-size:clamp(44px,7vw,100px)}.word-rails i{font-style:normal;font-weight:400}.story-ending{position:absolute;left:5%;top:23%;z-index:12;opacity:0;pointer-events:none}.story-ending h2{font-size:clamp(60px,8vw,120px);font-weight:600;letter-spacing:-.06em;line-height:1.1;margin-top:24px}.story-ending h2 em{font-style:normal;color:var(--accent)}.story-ending p{font-size:12px;color:#b8b0a6;margin-top:28px;line-height:1.8}.story-ending a{display:flex;gap:50px;justify-content:space-between;align-items:center;font-size:12px;margin-top:26px;padding:16px 0;border-top:1px solid #ede9e150}.story-ending a span{font-size:24px}.story-dock{position:absolute;bottom:29px;left:4%;right:4%;display:flex;justify-content:space-between;gap:20px;z-index:20}.story-steps{display:flex;gap:20px}.story-steps button{padding:7px 0;font:9px ui-monospace;opacity:.45;border-bottom:1px solid transparent}.story-steps button.active{opacity:1;border-color:currentColor}.scroll-cue{font:8px ui-monospace;letter-spacing:2px;align-self:center}
.question-composer{padding:90px 4% 25px;background:var(--paper);display:grid;grid-template-columns:1fr 1.2fr;gap:7%;position:relative;overflow:hidden}.editor-title h2{font-size:clamp(42px,5vw,75px);font-weight:550;line-height:1.13;letter-spacing:-.055em;margin-top:24px}.editor-title p{font-size:12px;line-height:1.9;margin-top:27px}.prompt-desk{border-top:1px solid var(--ink);align-self:center}.prompt-tabs{display:flex;border-bottom:1px solid #19191740}.prompt-tabs button{flex:1;font-size:21px;padding:20px 12px;text-align:left;transition:background .2s}.prompt-tabs button span{font:9px ui-monospace;vertical-align:top;margin-right:15px}.prompt-tabs [aria-selected="true"]{background:var(--accent)}.prompt-panel{padding:24px 0}.prompt-panel label{display:block;font:9px ui-monospace;letter-spacing:1px;margin-bottom:16px}.prompt-panel textarea{width:100%;border:0;background:none;resize:vertical;min-height:135px;padding:0;font-size:19px;line-height:1.65;outline-offset:8px;border-radius:0;overflow-wrap:anywhere}.context-tools{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:17px}.context-tools>span{font-size:9px;width:100%;color:#686158}.context-tools button{padding:8px 12px;border:1px solid #19191740;border-radius:30px;font-size:10px}.context-tools [aria-pressed="true"]{background:var(--ink);color:var(--paper)}.prompt-bottom{margin-top:24px;border-top:1px solid #19191740;padding-top:20px;display:flex;gap:15px;align-items:center;justify-content:space-between}.prompt-bottom small{font-size:8px;letter-spacing:0;max-width:205px}.prompt-bottom button{background:var(--ink);color:var(--paper);padding:12px 18px;font-size:11px;white-space:nowrap}.status{min-height:24px;font-size:11px;margin-top:14px}.composer-baseline{grid-column:1/-1;margin-top:36px;padding-top:18px;border-top:1px solid #19191730;display:flex;justify-content:space-between;font:9px ui-monospace;letter-spacing:2px}
.product-evidence{padding:75px 4%;background:var(--paper);display:grid;grid-template-columns:1fr 1.2fr;gap:7%;border-top:1px solid #19191725;align-items:center}.evidence-heading h2{font-size:clamp(32px,4vw,58px);font-weight:500;line-height:1.13;letter-spacing:-2.8px;margin-top:15px}.evidence-heading h2 em{font-style:normal;color:#8c4121}.evidence-heading p{margin-top:22px;font-size:11px;color:#625a50}.screen-evidence{max-width:640px;width:100%;min-width:0}.three-screens{display:flex;align-items:flex-end;gap:10px;max-height:245px;transform:rotate(-3deg);padding:8px 4px 10px;margin:0 0 14px}.device{padding:3px;background:var(--ink);border:1px solid #615448;border-radius:5px;box-shadow:4px 7px 10px #19191720;cursor:zoom-in;flex:none}.device img{display:block;width:100%;height:100%;object-fit:contain}.device.pc{width:66%;aspect-ratio:1.6;align-self:center}.device.tablet{width:20%;aspect-ratio:.695;border-radius:8px}.device.phone{width:11%;aspect-ratio:.462;border-radius:9px;transform:translateY(7px)}.screen-controls{display:flex;align-items:center;justify-content:space-between;padding-top:10px;border-top:1px solid #19191740;font:8px ui-monospace;letter-spacing:1px}.screen-controls>div{display:flex;gap:14px;align-items:center}.screen-controls button{border:1px solid #19191740;border-radius:50%;width:27px;height:27px;padding:0;font-size:13px}.capture-note{display:block;font-size:8px;letter-spacing:0;color:#71665a;margin-top:15px}
.chat-outro{background:var(--accent);overflow:hidden;position:relative;padding:95px 4%;min-height:550px;display:flex;align-items:center}.chat-outro>span{position:absolute;right:2%;top:50%;transform:translateY(-52%) rotate(13deg);font:800 clamp(350px,45vw,660px)/1 Arial;letter-spacing:-.15em;color:var(--ink)}.chat-outro>div{position:relative;z-index:2}.chat-outro h2{font-size:clamp(55px,7vw,104px);letter-spacing:-.065em;line-height:1.15;font-weight:650;margin:20px 0 28px}.chat-outro a{display:inline-block;border-bottom:1px solid var(--ink);padding:14px 0;font-size:12px}footer{background:var(--ink);color:var(--paper);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:32px;padding:40px 4%}footer .footer-brand{font-size:23px;font-weight:700;display:flex;gap:10px;align-items:center}footer img{width:36px;height:36px;color-scheme:dark}footer>div{display:flex;flex-wrap:wrap;gap:22px;font-size:10px}footer button{font-size:10px;padding:0}footer>small{font-size:8px;letter-spacing:0;width:100%;color:#a59a8e}#screen-dialog{width:min(94vw,1320px);max-height:94vh;border:1px solid #ede9e160;padding:20px;background:var(--ink);color:var(--paper);border-radius:8px}#screen-dialog::backdrop{background:#191917dd;backdrop-filter:blur(12px)}#screen-dialog>div{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:15px}#screen-dialog h2{font-size:14px;font-weight:400}#screen-dialog button{font-size:12px}#screen-dialog img{display:block;max-height:76vh;max-width:100%;margin:auto;object-fit:contain}#screen-dialog p{margin-top:12px;font-size:11px;color:#b9b0a4}
@keyframes intro-line{0%{height:0}70%,100%{height:60%}}@keyframes intro-word{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}@keyframes intro-open{to{clip-path:inset(50% 0);visibility:hidden}}@keyframes type-in{from{opacity:0;transform:translateY(45px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1050px){.question-poster h1{font-size:7.3vw}.process-type strong{letter-spacing:-2px}.question-composer,.product-evidence{gap:4%}.prompt-bottom{align-items:flex-start;flex-direction:column}.evidence-heading h2{letter-spacing:-2px}}
@media(max-width:700px){.chat-header{height:72px;padding:0 5%}.brand{font-size:21px}.brand img{width:34px;height:34px}.menu-toggle{display:block}.chat-header nav{display:none;position:absolute;top:65px;left:5%;right:5%;padding:22px;background:var(--paper);color:var(--ink);border:1px solid #19191730;flex-wrap:wrap;gap:22px}.chat-header nav.open{display:flex}.question-story{height:440svh}.question-stage{min-height:740px}.stage-label{top:100px;left:5%;right:5%;font-size:7px;letter-spacing:.7px}.stage-label>span+span{display:none}.question-poster h1{left:5%;top:22%;width:91%;font-size:clamp(40px,12vw,75px);line-height:1.1}.question-poster h1 span+span{margin-top:8px;font-size:.8em}.question-poster p{left:5%;bottom:17%;width:47%;font-size:10px;line-height:1.8}.poster-outline{bottom:7%;font-size:38vw}.focus-window{left:48%;top:43%;width:47%;height:32%}.question-core b{font-size:145px}.question-core>span{margin-top:15px;font-size:10px;letter-spacing:3px}.question-core small{font-size:5px;letter-spacing:.6px}.focus-crosshair i{width:9px;height:9px}.focus-caption{right:5%;bottom:9%;width:80%}.focus-caption small{font-size:7px}.focus-caption p{font-size:9px;margin-top:4px}.workspace-title{left:5%;top:18%}.workspace-title small{font-size:7px}.workspace-title h2{font-size:35px;letter-spacing:-2px;margin-top:6px}.workspace-title p{font-size:9px;margin-top:10px}.workspace-screen>span{padding:6px 10px;font-size:7px}.process-type{left:5%;right:5%;width:90%;top:22%}.process-type>div{padding:10px 0}.process-type small{font-size:7px}.process-type strong{font-size:36px;letter-spacing:-2px}.process-type p{font-size:10px;margin-top:12px}.word-rails>div{top:29%;font-size:70px;letter-spacing:-3px;gap:20px}.word-rails>div+div{top:66%;font-size:60px}.story-ending{left:5%;top:23%}.story-ending small{font-size:7px}.story-ending h2{font-size:clamp(50px,15vw,80px);letter-spacing:-3px;margin-top:25px}.story-ending p{font-size:11px;margin-top:24px}.story-ending a{font-size:11px}.story-dock{left:5%;right:5%;bottom:23px}.story-steps{gap:12px}.story-steps button{font-size:7px}.scroll-cue{font-size:6px;letter-spacing:.5px}.question-composer{padding:60px 5% 25px;grid-template-columns:1fr;gap:35px}.editor-title h2{font-size:44px;letter-spacing:-2px;margin-top:17px}.editor-title p{font-size:11px;margin-top:20px}.prompt-tabs button{font-size:20px;padding:16px 10px}.prompt-tabs button span{font-size:7px;margin-right:8px}.prompt-panel textarea{font-size:17px}.context-tools{gap:7px}.context-tools button{font-size:9px;padding:7px 9px}.prompt-bottom{flex-direction:row;align-items:center}.prompt-bottom small{max-width:135px;font-size:7px}.prompt-bottom button{font-size:9px;padding:11px 13px}.composer-baseline{font-size:7px;letter-spacing:.5px;margin-top:0}.product-evidence{padding:50px 5%;grid-template-columns:1fr;gap:35px}.evidence-heading h2{font-size:34px;letter-spacing:-2px}.evidence-heading p{font-size:10px;margin-top:16px}.three-screens{gap:5px;max-height:155px;max-width:370px}.screen-controls{font-size:7px;letter-spacing:.6px}.capture-note{font-size:7px}.chat-outro{padding:65px 5%;min-height:460px}.chat-outro>span{font-size:400px;right:-70px;opacity:.17}.chat-outro small{font-size:7px;letter-spacing:.7px}.chat-outro h2{font-size:58px}.chat-outro a{font-size:11px}footer{padding:30px 5%;gap:25px}footer>div{gap:18px;font-size:9px}footer button{font-size:9px}#screen-dialog{padding:14px}#screen-dialog h2{font-size:11px}.chat-intro{font-size:20vw;gap:5vw}.chat-intro small{font-size:7px;letter-spacing:.6px}}
@media(max-width:350px){.question-poster p{font-size:9px}.scroll-cue{display:none}.prompt-bottom{align-items:flex-start;flex-direction:column}.context-tools button{font-size:8px}.chat-outro h2{font-size:51px}}
.reduced .question-story{height:auto}.reduced .question-stage{position:relative;height:auto;min-height:0;padding:145px 5% 45px;overflow:hidden;background:var(--accent)!important;color:var(--ink)!important}.reduced .question-poster{position:relative;opacity:1!important;transform:none!important;min-height:280px}.reduced .question-poster h1{position:relative;top:auto;left:auto;width:100%;font-size:clamp(40px,6.8vw,100px)}.reduced .question-poster p{position:relative;left:auto;bottom:auto;width:auto;max-width:430px;margin-top:30px;font-size:12px}.reduced .poster-outline,.reduced .stage-label,.reduced .focus-caption,.reduced .focus-crosshair,.reduced .question-core,.reduced .word-rails,.reduced .story-dock{display:none}.reduced .focus-window{position:relative;left:auto!important;top:auto!important;width:100%!important;height:auto!important;aspect-ratio:1.6;clip-path:none!important;border-radius:6px;transform:none!important;opacity:1!important;margin-top:35px}.reduced .workspace-screen{opacity:1!important;pointer-events:auto!important}.reduced .workspace-title{position:relative;left:auto;top:auto;opacity:1!important;transform:none!important;margin-top:35px}.reduced .workspace-title h2{font-size:45px}.reduced .process-type{position:relative;left:auto;right:auto;top:auto;width:auto;opacity:1!important;margin-top:40px;padding:25px;color:var(--paper);background:var(--ink)}.reduced .process-type strong{font-size:36px}.reduced .story-ending{position:relative;left:auto;top:auto;opacity:1!important;transform:none!important;pointer-events:auto!important;margin-top:40px}.reduced .story-ending h2{font-size:52px}.reduced .story-ending h2 em,.reduced .story-ending p{color:var(--ink)}.reduced .story-ending a{border-color:#19191740}.reduced .chat-intro{display:none!important}

.focus-crosshair{transition:transform .5s}.question-stage[data-mode="organize"] .focus-crosshair{transform:rotate(90deg)}.question-stage[data-mode="create"] .focus-crosshair{transform:rotate(45deg)}.focus-caption p{overflow-wrap:anywhere}