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/* Quiet, single-column academic presentation. */
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/* The research story uses one shared timeline and a continuous, seekable clock. */
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@media(max-width:700px){.story-topline{font-size:10px}.frozen-model{gap:4px}.story-heading{gap:12px;min-height:119px;margin:22px 0 14px}.story-heading>span{font-size:36px}.story-heading h2{font-size:21px}.story-heading p{font-size:13px}.story-surface{padding:18px}.timeline-label{font-size:10px}.timeline-label>span:last-child{max-width:65%;text-align:right}.filmstrip{gap:3px;height:34px}.film-frame{padding:4px 2px;gap:1px}.film-frame:nth-child(even){display:none}.unseen-interval span{font-size:8px}.story-scene{grid-template-columns:1fr;gap:10px}.scene-transfer{display:none}.story-scenes{min-height:490px}.scene-column+.scene-transfer+.scene-column{border-top:1px solid #e3e8dc;padding-top:15px;margin-top:10px}.actor-label{font-size:10px;margin-bottom:8px}.record-line{padding:9px 0}.story-chapters{order:3;flex-basis:100%;justify-content:space-between;gap:0}.story-chapters button{padding:7px 5px;font-size:11px}.story-scrubber{order:4}.story-time{margin-left:auto}.story-controls{gap:10px}.story-disclaimer{font-size:10px}.selection-flow{padding-top:24px}.selection-branches{flex-direction:column;gap:7px}.selection-arrow{margin:10px 0}.selected-harness{gap:12px;flex-wrap:wrap;justify-content:center}.return-label{margin:0}.compact-framework{flex-direction:column;gap:8px}.compact-framework i{transform:rotate(90deg)}.evidence-gap{margin-top:10px}.failure-record{padding:10px 0}.hypothesis{padding:11px 0}.hypothesis-comparison{padding-top:8px}}
@media(prefers-reduced-motion:reduce){.film-frame{transition:none}}

.story-surface{position:relative}.story-parcel{position:absolute;z-index:2;pointer-events:none;opacity:0;transform:translate(-50%,-50%);padding:5px 11px;border:1px solid #8eafbe;border-radius:3px;background:#edf5f8;color:#356b82;font-size:11px;letter-spacing:.02em;box-shadow:0 3px 9px #304c3b0b}.story-parcel[data-kind="1"],.story-parcel[data-kind="2"]{border-color:#c8a078;background:#fcf2e7;color:#9d693b}.story-parcel[data-kind="3"]{border-color:#94af86;background:#edf5e8;color:#54764a}@media(max-width:700px){.story-parcel{display:none}}



/* Animated framework follows the paper's blue / orange / green structure. */
.visual-teaser{max-width:1100px;scroll-margin-top:18px;margin-bottom:8px}
.rsi-toolbar{display:flex;justify-content:space-between;align-items:center;padding:10px 26px 0;gap:15px;font-size:14px;color:#4a6255}
.rsi-toolbar>div{display:flex;align-items:center;gap:18px}.rsi-frozen{font-size:12px;color:#758173}.rsi-play{font-size:12px;color:#4c6454;border:1px solid #cbd8ca;background:transparent;border-radius:4px;padding:5px 11px;min-width:60px}.rsi-play:hover{background:#e8efe3}.rsi-play[hidden]{display:none}
.rsi-stage{position:relative;display:grid;grid-template-columns:1fr 1.25fr 1.1fr;grid-template-areas:'solver editor gate' '. video .';column-gap:68px;row-gap:85px;padding:75px 26px 20px;isolation:isolate}
.rsi-connectors{position:absolute;inset:0;width:100%;height:100%;overflow:visible;z-index:-1;pointer-events:none}
.rsi-route{fill:none;stroke-width:1.5;stroke-linejoin:round;opacity:.48;transition:opacity .25s}.rsi-route.blue{stroke:#316f94;marker-end:url(#rsi-blue-arrow)}.rsi-route.orange{stroke:#bd742f;marker-end:url(#rsi-orange-arrow)}.rsi-route.green{stroke:#3b826b;marker-end:url(#rsi-green-arrow)}.rsi-route.purple{stroke:#86709c;marker-end:url(#rsi-purple-arrow)}.rsi-route.dashed{stroke-dasharray:5 5}.rsi-route.is-active{opacity:1;stroke-width:2.2}.rsi-route-labels text{font:12px Arial,Helvetica,sans-serif;fill:#647366;paint-order:stroke;stroke:#f3f7ef;stroke-width:5px;stroke-linejoin:round}
.rsi-panel{height:304px;padding:16px 17px;border:1px solid var(--panel-line);border-radius:8px;background:var(--panel-bg);color:var(--panel-ink);transition:border-color .3s,box-shadow .3s}
.rsi-panel h3{display:flex;align-items:center;justify-content:center;gap:9px;font-size:23px;font-weight:600;color:var(--panel-ink);margin:0 0 15px;line-height:1.3}
.rsi-solver{grid-area:solver;--panel-line:#b8d0db;--panel-bg:#edf4f7;--panel-ink:#316f94}.rsi-editor{grid-area:editor;--panel-line:#e1c8a9;--panel-bg:#fbf4e9;--panel-ink:#b87331}.rsi-gate{grid-area:gate;--panel-line:#b9d3c5;--panel-bg:#edf5ef;--panel-ink:#387e66}.rsi-panel.is-active{border-color:var(--panel-ink);box-shadow:inset 0 0 0 1px var(--panel-ink)}
.rsi-bot{width:39px;height:39px;flex-shrink:0;fill:var(--panel-bg);stroke:#254b5e;stroke-width:3.7;stroke-linecap:round;stroke-linejoin:round}.rsi-editor .rsi-bot{stroke:#79532e}.rsi-panel.is-active .rsi-bot{animation:rsi-breathe 2.8s ease-in-out infinite}.rsi-eyes{stroke-width:4.3}
.rsi-harness{background:#fbfdfd;border:1px solid #b6cddb;border-radius:5px;padding:12px 13px}.rsi-module-title{text-align:center;font-size:19px;font-weight:600;color:#254b5e}.rsi-code{width:64px;margin:12px auto;display:grid;gap:5px}.rsi-code i{height:3px;background:#8caebe;display:block;transition:background .4s}.rsi-code i:nth-child(2){width:72%}.rsi-code i:nth-child(3){width:86%}.rsi-components{display:grid;grid-template-columns:1fr 1fr;gap:5px;font-size:13px;text-align:center;color:#60798a}.rsi-trace{display:flex;align-items:center;gap:6px;margin:18px 13px 0}.rsi-trace i{height:3px;width:25%;background:#b2c8d2;transform-origin:left;transform:scaleX(.25)}.rsi-trace>span{margin-left:auto;font-size:23px;line-height:1}
.rsi-editor h3{margin-bottom:0}.rsi-investigation-title{text-align:center;font-size:12px;margin:1px 0 13px;color:#a36a34}.rsi-investigation{position:relative;padding-right:17px}.rsi-action{height:47px;display:flex;align-items:center;justify-content:space-between;gap:5px;padding:9px 10px;background:#fffcf7;border:1px solid #e7d7c1;border-radius:4px;font-size:15px;color:#5b554c;transition:background .3s,border-color .3s}.rsi-action svg{width:31px;height:21px;fill:none;stroke:#bf8d57;stroke-width:1.6;flex-shrink:0}.rsi-action.is-active{background:#f5e4cb;border-color:#bb803d}.rsi-down{display:block;text-align:center;font-size:20px;line-height:21px;color:var(--panel-ink)}.rsi-inner-loop{position:absolute;right:-3px;top:7px;width:18px;height:179px;fill:none;stroke:#c18b55;stroke-width:1.4}.rsi-inner-loop.is-active{stroke:#a85d20;stroke-width:2.2}
.rsi-gate h3{font-size:19px;margin:6px 0 20px;white-space:nowrap}.rsi-gate-step{background:#fcfefc;border:1px solid #c5d9cc;border-radius:4px;text-align:center;padding:10px 8px;font-size:15px;color:#4a6657}.rsi-private{display:flex;align-items:center;justify-content:center;gap:13px}.rsi-samples{display:grid;grid-template-columns:repeat(2,6px);gap:3px}.rsi-samples i{height:7px;background:#c3d8c9}.rsi-metrics{display:flex;gap:8px;justify-content:center;align-items:center;font-size:14px}.rsi-and{font-size:12px;color:#97a899}.rsi-bound{text-align:center;font-size:12px;color:#758b79;margin:8px 0}.rsi-decision{display:flex;justify-content:center;align-items:center;gap:9px;border:1px solid #b8d4c3;border-radius:4px;background:#e7f0e7;padding:12px 5px;font-size:15px}.rsi-or{font-size:12px;color:#809182}.rsi-gate-step.is-active,.rsi-decision.is-active{border-color:#41866d;background:#deede1}
.rsi-video{grid-area:video;background:#f3f7f9;border:1px solid #c4d2d8;border-radius:5px;padding:10px 13px 13px;min-width:0}.rsi-video-head{display:flex;align-items:center;justify-content:space-between;color:#526c7d;font-size:13px;margin-bottom:9px}.rsi-query-mark{font-size:23px;color:#b57436;line-height:1;opacity:0}.rsi-film{display:flex;gap:5px;position:relative}.rsi-frame{height:35px;min-width:0;flex:1;background:#e0eaf0;border:1px solid #bfd1db;border-radius:2px;position:relative;overflow:hidden;transition:background .25s,border-color .25s}.rsi-frame i{position:absolute;width:7px;height:7px;left:30%;top:8px;border-radius:50%;background:#a5bdc9}.rsi-frame b{position:absolute;left:12%;right:12%;bottom:7px;height:3px;background:#bacdd5}.rsi-frame:nth-child(even) i{border-radius:1px;left:50%}.rsi-frame.is-sampled{border-color:#497e9c;background:#c8dde8}.rsi-frame.is-evidence{border-color:#c38440;background:#f0d6b5}.rsi-frame.is-evidence i{background:#ba7c3a}.rsi-scan{position:absolute;top:-4px;bottom:-4px;width:2px;background:#b77530;opacity:0;pointer-events:none}
.rsi-packet{position:absolute;top:0;left:0;width:28px;height:33px;padding:8px 5px;display:grid;gap:4px;background:#fcfafc;border:1px solid #9e86ae;border-radius:3px;opacity:0;pointer-events:none}.rsi-packet i{height:2px;background:#9e86ae}.rsi-packet i:nth-child(2){width:65%}
@keyframes rsi-breathe{0%,100%{transform:translateY(0)}50%{transform:translateY(-2px)}}
@media(min-width:781px) and (max-width:1000px){.rsi-stage{column-gap:45px;padding-inline:10px;grid-template-columns:1fr 1.2fr 1.1fr}.rsi-panel{padding-inline:10px}.rsi-gate h3{font-size:16px}.rsi-action{font-size:13px}.rsi-metrics{font-size:12px;gap:5px}.rsi-decision{font-size:13px}.rsi-route-labels text{font-size:10px}}
@media(max-width:780px){.visual-teaser{max-width:480px}.rsi-toolbar{padding-inline:18px;font-size:12px}.rsi-toolbar>div{gap:8px}.rsi-frozen{font-size:10px}.rsi-stage{grid-template-columns:minmax(0,1fr);grid-template-areas:'solver' 'editor' 'video' 'gate';padding:57px 32px 35px;row-gap:48px}.rsi-panel{height:auto;min-height:265px;padding:15px 20px}.rsi-solver{min-height:245px}.rsi-editor{min-height:304px}.rsi-gate{min-height:285px}.rsi-gate h3{font-size:20px}.rsi-route-labels text{font-size:11px}.rsi-components{font-size:14px}.rsi-video{padding:10px}.rsi-action{font-size:15px}.rsi-frozen{display:none}}
@media(prefers-reduced-motion:reduce){.rsi-panel,.rsi-action,.rsi-frame,.rsi-route{transition:none}.rsi-panel.is-active .rsi-bot{animation:none}}
@media(max-width:780px){.rsi-toolbar{flex-wrap:wrap;row-gap:5px}.rsi-toolbar>div{width:100%;justify-content:space-between}.rsi-frozen{display:inline}}
@media(max-width:360px){.rsi-stage{padding-inline:27px}.rsi-panel{padding-inline:12px}.rsi-gate h3{font-size:17px}.rsi-action{font-size:13px}.rsi-metrics{font-size:12px;gap:5px}.rsi-decision{font-size:13px}.rsi-panel h3{font-size:21px}.rsi-gate h3{font-size:17px}}

.rsi-stage[data-playing="false"] .rsi-bot{animation-play-state:paused}

/* Active exploration is acted out; the model stays fixed while the program changes. */
.rsi-toolbar{justify-content:flex-end;padding-top:0}.rsi-panel.is-active{box-shadow:none;border-color:var(--panel-line)}
.rsi-editor{background:#fbf5eb;border-color:#e8d9c5}.rsi-editor h3{margin-bottom:10px}.rsi-editor h3 .rsi-bot{animation:none}
.rsi-workspace{position:relative;height:215px;padding:3px 15px}
.rsi-hypothesis{height:24px;display:flex;gap:10px;align-items:center;justify-content:center;color:#b48554;transition:opacity .2s}.rsi-hypothesis span{border:1px solid #d9c4a8;border-radius:50%;width:23px;height:23px;text-align:center;font:15px/23px Arial}.rsi-hypothesis svg{width:60px;height:24px;fill:none;stroke:#c7ad8b;stroke-width:1.2}
.rsi-evidence-desk{margin-top:10px}.rsi-desk-label{font-size:11px;text-align:center;color:#967d60;margin-bottom:7px}.rsi-evidence-slots{display:flex;justify-content:center;gap:13px}.rsi-evidence-slot{width:70px;height:47px;border:1px dashed #deceb9;border-radius:4px;background:rgb(255 255 255 / .28)}
.rsi-proof{position:relative;display:block;width:100%;height:100%;border:1px solid #cc9659;border-radius:4px;background:#f2dec3;overflow:hidden;box-shadow:0 2px 4px #97672c0d}.rsi-proof i{position:absolute;top:22%;left:27%;width:13px;height:13px;border-radius:50%;background:#bd8445}.rsi-proof.square i{border-radius:1px;left:51%}.rsi-proof b{position:absolute;left:11%;right:11%;height:3px;bottom:22%;background:#d5b383}.rsi-proof em{position:absolute;bottom:10%;height:2px;width:27%;left:11%;background:#d5b383}.rsi-proof.square em{width:49%}
.rsi-evidence-slot .rsi-proof{opacity:0;transform:translateY(6px)}
.rsi-patch-sheet{position:relative;margin:17px auto 0;width:164px;height:71px;border:1px solid #d6d1d9;border-radius:4px;background:#fcfbfd;padding:11px 14px;opacity:.4}.rsi-patch-label{position:absolute;right:10px;top:8px;font-size:10px;color:#8a7996}.rsi-patch-code{display:grid;gap:6px;margin-top:9px;width:79px}.rsi-patch-code i{height:3px;background:#c6c0cd;transform-origin:left;display:block}.rsi-patch-code i:nth-child(2){width:66%}.rsi-patch-code i:nth-child(3){width:87%}.rsi-patch-code i:nth-child(4){width:54%}.rsi-edit-pen{position:absolute;right:21px;bottom:13px;width:27px;height:27px;fill:#f3edf7;stroke:#8e719f;stroke-width:1.4;opacity:0}
.rsi-explorer{position:absolute;left:0;top:0;width:52px;height:52px;z-index:4;pointer-events:none;transform-origin:center;opacity:0;will-change:transform}
.rsi-explorer>svg{width:52px;height:52px;fill:#faf1de;stroke:#79532e;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 2px 2px #7b542410)}
.rsi-explorer-eyes{transform-origin:32px 33px}.rsi-cargo{position:absolute;left:40px;top:33px;width:43px;height:31px;opacity:0;transform:rotate(-6deg)}.rsi-cargo i{width:9px;height:9px}.rsi-search-lens{position:absolute;left:42px;top:29px;width:20px;height:20px;border:2px solid #a97132;border-radius:50%;background:#f8fbfb9c;opacity:0}.rsi-search-lens:after{content:'';position:absolute;width:10px;height:2px;right:-8px;bottom:-4px;background:#a97132;transform:rotate(45deg)}
.rsi-look-beam{fill:#dfaa5718;stroke:#c8924955;stroke-width:1;pointer-events:none}
.rsi-video-closeup{position:absolute;width:91px;height:64px;z-index:3;pointer-events:none;opacity:0;transform-origin:center bottom;background:#f9f4e9;padding:4px;border:1px solid #cba06a;border-radius:5px;box-shadow:0 5px 13px #6346220e}.rsi-video-closeup>.rsi-proof{height:100%}.rsi-video-closeup>span{position:absolute;width:5px;height:5px;border-right:1px solid #cba06a;border-bottom:1px solid #cba06a;background:#f9f4e9;bottom:-4px;left:16px;transform:rotate(45deg)}
@media(max-width:780px){.rsi-editor{min-height:304px}.rsi-workspace{padding-inline:0}.rsi-stage{row-gap:70px}.rsi-toolbar{padding:0 16px}.rsi-hypothesis{gap:8px}}
.rsi-stage{overflow:clip}

/* Make the Solver execution and the Editor's three reasoning stages explicit. */
.rsi-panel{height:390px}.rsi-workspace{height:303px;padding:0 11px}.rsi-reasoning{position:relative;padding-right:19px}.rsi-reason-step{position:relative;display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:50px;border-bottom:1px solid #eadfce;padding:7px 0}.rsi-reason-name{font-size:13px;line-height:1.3;white-space:nowrap;color:#877357;transition:color .2s}.rsi-reason-step.is-current .rsi-reason-name{color:#a56023;font-weight:600}.rsi-reason-step.is-current:before{content:'';position:absolute;left:-9px;width:3px;height:14px;background:#ca9859;border-radius:2px}
.rsi-hypothesis{margin:0;height:27px;gap:3px;flex-shrink:0}.rsi-hypothesis span{width:19px;height:19px;font-size:12px;line-height:19px}.rsi-hypothesis svg{width:22px}.rsi-query-plan{display:flex;align-items:center;gap:3px}.rsi-query-plan i{width:9px;height:13px;border:1px solid #d9c19f;background:#f8eedc}.rsi-query-plan i.is-target{background:#e6bd85;border-color:#b57e39}.rsi-query-plan span{font-size:23px;line-height:1;color:#b48554;margin-left:2px}
.rsi-reason-step[data-reason="diagnosis"]{display:block;padding-block:9px 10px}.rsi-evidence-desk{margin-top:8px}.rsi-evidence-slots{gap:14px}.rsi-evidence-slot{width:65px;height:42px}.rsi-diagnosis-link{display:block;width:144px;height:2px;margin:6px auto 0;background:linear-gradient(90deg,#d4b48b 44%,transparent 44% 56%,#d4b48b 56%);transform:scaleX(0);transform-origin:center}
.rsi-reason-return{position:absolute;right:-9px;top:4px;width:21px;height:175px;fill:none;stroke:#d4b288;stroke-width:1.4}.rsi-reason-return circle{fill:#b3742d;stroke:none;opacity:0}.rsi-reason-return.is-current{stroke:#ae7335;stroke-width:1.8}
.rsi-patch-sheet{margin-top:12px;height:66px}.rsi-patch-code{gap:5px}.rsi-solver .rsi-harness{padding-block:10px}.rsi-solver .rsi-code{margin-block:10px}.rsi-observations{display:flex;justify-content:center;gap:8px;margin:15px 0 10px}.rsi-solver-proof{display:block;width:48px;height:34px;position:relative;border:1px solid #93b7c9;background:#deebf2;border-radius:3px;opacity:0}.rsi-solver-proof i{position:absolute;width:9px;height:9px;top:7px;left:50%;background:#7fa5b9;border-radius:1px}.rsi-solver-proof.circle i{left:30%;border-radius:50%}.rsi-solver-proof b{position:absolute;left:12%;right:12%;bottom:7px;height:2px;background:#a6c1ce}
.rsi-answer{display:flex;align-items:center;gap:9px;max-width:177px;margin:0 auto;padding:8px 10px;border:1px solid #becfd7;border-radius:4px;background:#f9fcfd;opacity:0}.rsi-answer>span{font-size:12px;color:#527a8d}.rsi-answer>div{display:grid;gap:5px;flex:1}.rsi-answer i{height:2px;background:#9ab7c5}.rsi-answer i:last-child{width:70%}.rsi-answer>b{display:grid;place-items:center;border:1px solid #c4934e;background:#fff5df;color:#b07a2f;width:18px;height:18px;border-radius:50%;font-size:12px;line-height:1;opacity:0}
.rsi-solver .rsi-trace{margin-top:11px}.rsi-components span{border-radius:3px;transition:background .2s}.rsi-components span.is-used{background:#dceaf0;color:#316f94}
.rsi-solver-agent{position:absolute;left:0;top:0;width:52px;height:52px;z-index:4;pointer-events:none;transform-origin:center;opacity:0;will-change:transform}.rsi-solver-agent>svg{width:52px;height:52px;fill:#edf5fa;stroke:#315b74;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 2px 2px #315b7410)}
.rsi-observation-pack{position:absolute;left:37px;top:35px;width:51px;height:34px;opacity:0}.rsi-observation-pack i{position:absolute;width:25px;height:26px;border:1px solid #89afc2;border-radius:2px;background:#d6e7ef;top:2px;left:0;transform:rotate(-12deg)}.rsi-observation-pack i:nth-child(2){left:11px;top:0;transform:rotate(0)}.rsi-observation-pack i:nth-child(3){left:22px;top:2px;transform:rotate(12deg)}.rsi-observation-pack i:after{content:'';position:absolute;width:6px;height:6px;background:#749caf;left:8px;top:7px}.rsi-observation-pack i:nth-child(2):after{border-radius:50%}
.rsi-gate h3{margin-bottom:26px}.rsi-gate-step{padding-block:16px}.rsi-gate .rsi-down{line-height:29px}.rsi-bound{margin-block:11px}.rsi-decision{padding-block:17px}
@media(max-width:1000px) and (min-width:781px){.rsi-workspace{padding-inline:0}.rsi-reason-name{font-size:11px}.rsi-reasoning{padding-right:12px}.rsi-hypothesis svg{width:12px}.rsi-hypothesis span{width:16px;height:16px;line-height:16px}.rsi-reason-return{right:-8px;width:17px}.rsi-evidence-slot{width:53px}.rsi-solver-proof{width:39px}.rsi-observations{gap:5px}}
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