#bim-project-fact{--pf-bg:#f7f7fa;--pf-card:#fff;--pf-ink:#202027;--pf-muted:#686575;--pf-line:#e3dfec;--pf-soft:#f4f0fa;--pf-blue:#6d36d9;--pf-blue-soft:#f0e9ff;--pf-good:#087957;background:var(--pf-bg);color:var(--pf-ink);padding:110px 0 80px;font:15px/1.6 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;overflow:clip}
html[data-bim-theme="dark"] #bim-project-fact{--pf-bg:#191720;--pf-card:#25212f;--pf-ink:#f4f0fa;--pf-muted:#beb3ce;--pf-line:#493e5a;--pf-soft:#332541;--pf-blue:#bc98ff;--pf-blue-soft:#332541;--pf-good:#6bd5b3}
#bim-project-fact,#bim-project-fact *{box-sizing:border-box}#bim-project-fact [hidden]{display:none!important}#bim-project-fact .pf-wrap{width:min(1360px,calc(100% - 64px));margin:auto}#bim-project-fact a{color:var(--pf-blue);text-decoration:none}#bim-project-fact button,#bim-project-fact input{font:inherit}#bim-project-fact button{cursor:pointer}#bim-project-fact button:focus-visible,#bim-project-fact a:focus-visible,#bim-project-fact input:focus-visible,#pf-finish-title:focus-visible{outline:3px solid var(--bi-focus,#8b4dff);outline-offset:4px}#bim-project-fact button:disabled{cursor:default;opacity:.6}
.pf-breadcrumb{display:flex;gap:14px;color:var(--pf-muted);font-size:12px;margin-bottom:44px}.pf-intro{display:grid;grid-template-columns:1.35fr 1fr;gap:70px;align-items:end;margin-bottom:42px}.pf-kicker{font-size:10px;letter-spacing:.15em;font-weight:750;color:var(--pf-muted);display:inline-flex;align-items:center;gap:9px}.pf-dot{display:inline-block;position:relative;flex:none;width:15px;height:15px}.pf-dot:before,.pf-dot:after{content:"";position:absolute;width:10px;height:10px}.pf-dot:before{left:0;top:0;background:#ff653f}.pf-dot:after{left:5px;top:5px;background:#8b4dff}.pf-intro h1{font-size:clamp(38px,4.6vw,68px);line-height:1.06;letter-spacing:-.055em;margin:17px 0 0;font-weight:780}.pf-intro h1 em{font-style:normal;color:var(--pf-blue)}.pf-intro p{color:var(--pf-muted);font-size:17px;line-height:1.7;max-width:420px;margin:0 0 4px}
.pf-experience{border:1px solid var(--pf-line);border-radius:24px;background:var(--pf-card);overflow:hidden;box-shadow:0 18px 60px #00000008}.pf-toolbar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;gap:16px;border-bottom:1px solid var(--pf-line)}.pf-scenarios{display:flex;gap:7px}.pf-scenarios button{display:flex;gap:9px;align-items:center;border:1px solid transparent;border-radius:10px;padding:10px 14px;color:var(--pf-muted);background:transparent;font-weight:650;font-size:13px;min-height:44px}.pf-scenarios button>span:first-child{font-size:10px;opacity:.7;font-variant-numeric:tabular-nums}.pf-scenarios button[aria-pressed=true]{color:var(--pf-ink);background:var(--pf-soft);border-color:var(--pf-line)}.pf-solved{color:var(--pf-good)}.pf-progress{font-size:11px;color:var(--pf-muted);white-space:nowrap;display:flex;gap:8px}.pf-progress strong{color:var(--pf-ink);font-size:12px}
.pf-workspace{display:grid;grid-template-columns:minmax(0,1fr) 320px}.pf-visual{min-width:0;background:var(--pf-card)}.pf-scene{position:relative;isolation:isolate;background:#e6e5df;aspect-ratio:1000/660;overflow:hidden;user-select:none}.pf-scene>svg{display:block;width:100%;height:100%}.pf-scene-label{position:absolute;left:22px;top:20px;z-index:2;display:flex;gap:8px;align-items:center;font-size:9px;letter-spacing:.12em;font-weight:750;color:#302638;padding:7px 11px;background:#ffffffe8;border:1px solid #ffffffa6;border-radius:6px}.pf-scene-note{position:absolute;right:22px;top:27px;z-index:2;font-size:10px;color:#686575}.pf-hit-buttons{position:absolute;inset:0;z-index:3;pointer-events:none}.pf-hit{position:absolute;transform:translate(-50%,-50%);min-width:44px;min-height:44px;padding:8px;pointer-events:auto;display:grid;place-items:center;border:0;background:transparent}.pf-hit>span{display:grid;place-items:center;width:24px;height:24px;border:1px solid #ffffffc4;border-radius:50%;background:#302638de;color:#fff;font-size:11px;box-shadow:0 2px 7px #0003;transition:transform .15s}.pf-hit:hover>span,.pf-hit:focus-visible>span{transform:scale(1.15);background:#6d36d9}.pf-hit[data-found=true]>span{background:#087957}.pf-hit[data-hint=true]>span{box-shadow:0 0 0 8px #eaaa4659;background:#865105}.pf-divider{position:absolute;left:65%;top:0;bottom:0;z-index:4;width:44px;transform:translateX(-50%);touch-action:none;cursor:ew-resize}.pf-divider:before{content:"";position:absolute;left:21px;top:0;bottom:0;width:2px;background:#fff;box-shadow:0 0 12px #6d36d933}.pf-divider>span{position:absolute;top:48%;left:6px;display:grid;place-items:center;width:32px;height:44px;color:#6d36d9;background:#fff;border-radius:9px;box-shadow:0 2px 14px #0002;font-size:20px}.pf-compare{padding:20px 25px 16px;border-top:1px solid var(--pf-line)}.pf-view-actions{display:flex;gap:8px;align-items:center}.pf-view-actions button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;border:1px solid var(--pf-line);border-radius:9px;background:transparent;color:var(--pf-muted);padding:9px 14px;font-size:12px;font-weight:650}.pf-view-actions button[aria-pressed=true]{color:var(--pf-blue);border-color:var(--pf-blue);background:var(--pf-blue-soft)}.pf-view-actions svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.5}.pf-slider-row{display:flex;gap:14px;align-items:center;margin-top:13px;font-size:10px;color:var(--pf-muted)}.pf-slider-row input{min-width:0;flex:1;height:44px;accent-color:var(--bi-action-fill,#6d36d9);cursor:ew-resize;margin:0}.pf-controls-hint{font-size:11px!important;color:var(--pf-muted);margin:0!important}
.pf-task{border-left:1px solid var(--pf-line);padding:27px 25px;display:flex;flex-direction:column;align-items:stretch}.pf-task-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.pf-task-symbol{font-size:28px;line-height:1;color:var(--pf-blue)}.pf-task h2{font-size:26px;line-height:1.13;letter-spacing:-.035em;margin:0 0 13px;color:var(--pf-ink)}.pf-task>p{font-size:13px;color:var(--pf-muted);margin:0 0 17px}.pf-instructions{margin:0 0 20px;padding-left:19px;color:var(--pf-muted);font-size:12px;line-height:1.8}.pf-instructions li{padding-left:4px}.pf-answer-options{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:22px}.pf-answer-options button{border:1px solid var(--pf-line);background:var(--pf-soft);color:var(--pf-ink);border-radius:8px;padding:8px 10px;font-size:11px;min-height:40px}.pf-answer-options button[data-found=true]{border-color:var(--pf-good);color:var(--pf-good)}.pf-feedback{border-top:1px solid var(--pf-line);padding-top:18px;margin-top:auto;min-height:127px}.pf-feedback strong{font-size:13px;color:var(--pf-ink)}.pf-feedback p{font-size:12px;color:var(--pf-muted);line-height:1.65;margin:7px 0 12px}.pf-feedback[data-status=success] strong{color:var(--pf-good)}.pf-feedback[data-status=hint] strong{color:var(--pf-blue)}#bim-project-fact .pf-text-button{border:0;color:var(--pf-muted);background:none;padding:11px 0;min-height:44px;font-size:12px;text-align:left;text-decoration:underline;text-underline-offset:4px}#bim-project-fact .pf-primary{display:inline-flex;align-items:center;justify-content:space-between;gap:18px;color:#fff;background:var(--bi-action-fill,#6d36d9);border:0;border-radius:10px;min-height:48px;padding:13px 18px;font-size:13px;font-weight:650;text-decoration:none}#bim-project-fact .pf-primary:hover{background:var(--bi-action-hover,#5828b8)}.pf-primary span{font-size:18px}#pf-next{margin-top:6px}
.pf-finish{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:22px;padding:32px 38px;border:1px solid var(--pf-line);border-radius:20px;background:var(--pf-blue-soft);scroll-margin-top:110px}.pf-finish h2{font-size:30px;line-height:1.15;letter-spacing:-.035em;margin:12px 0}.pf-finish p{color:var(--pf-muted);font-size:13px;margin:0}.pf-finish-actions{display:grid;gap:8px}.pf-footnote{display:flex;gap:14px;margin:23px 4px 70px;color:var(--pf-muted);align-items:flex-start}.pf-footnote>span{color:var(--pf-blue);font-size:22px;line-height:1}.pf-footnote p{max-width:850px;font-size:11px;line-height:1.7;margin:0}.pf-explainer{display:grid;grid-template-columns:1fr 1.4fr;gap:90px;padding:55px 0;border-top:1px solid var(--pf-line)}.pf-explainer h2,.pf-cta h2{font-size:clamp(28px,3vw,42px);line-height:1.1;letter-spacing:-.04em;margin:17px 0}.pf-explainer p,.pf-cta p{color:var(--pf-muted);font-size:14px}.pf-explainer a{font-size:13px}.pf-details details{border-bottom:1px solid var(--pf-line);padding:18px 0}.pf-details details:first-child{padding-top:0}.pf-details summary{cursor:pointer;font-size:15px;font-weight:650;padding:10px 0}.pf-details p{font-size:13px;line-height:1.8;margin:5px 0 10px}.pf-cta{display:grid;grid-template-columns:1.4fr 1fr;gap:50px;align-items:center;padding:35px 42px;border:1px solid var(--pf-line);border-radius:20px;background:var(--pf-card);margin-top:20px}.pf-cta p{max-width:450px;margin-bottom:0}.pf-cta-actions{display:grid;gap:16px;justify-items:start}.pf-cta-actions>a:not(.pf-primary){font-size:13px}.pf-nojs{background:var(--pf-blue-soft);padding:20px;color:var(--pf-ink)}
@media(min-width:1600px){.pf-workspace{grid-template-columns:minmax(0,1fr) 340px}.pf-task{padding:35px}}
@media(max-width:1050px){.pf-workspace{grid-template-columns:minmax(0,1fr) 280px}.pf-task{padding:22px 18px}.pf-intro{gap:35px}.pf-intro p{font-size:15px}.pf-task h2{font-size:23px}.pf-toolbar{padding:12px}.pf-explainer{gap:45px}}
@media(max-width:800px){#bim-project-fact{padding-top:90px}.pf-intro{display:block;margin-bottom:26px}.pf-intro p{margin-top:22px;max-width:550px}.pf-intro h1{font-size:46px}.pf-workspace{grid-template-columns:1fr}.pf-task{border-left:0;border-top:1px solid var(--pf-line);padding:24px;display:grid;grid-template-columns:1fr 1fr;gap:0 26px}.pf-task-top{grid-column:1/-1;margin-bottom:18px}.pf-task h2{grid-column:1}.pf-task>p,.pf-instructions{grid-column:1}.pf-answer-options,.pf-feedback,#pf-hint,#pf-next{grid-column:2}.pf-answer-options{grid-row:2;align-self:start}.pf-feedback{grid-row:3/5;min-height:0;margin-top:0}.pf-task>p{grid-row:3}.pf-instructions{grid-row:4}.pf-progress{font-size:10px}.pf-task-symbol{font-size:22px}.pf-explainer{gap:30px}.pf-cta{padding:28px;gap:30px}}
@media(max-width:560px){#bim-project-fact .pf-wrap{width:calc(100% - 28px)}.pf-breadcrumb{margin:0 4px 29px}.pf-intro{padding:0 4px}.pf-intro h1{font-size:clamp(34px,9.5vw,46px)}.pf-intro p{font-size:14px;margin-top:18px}.pf-kicker{font-size:9px}.pf-experience{border-radius:16px}.pf-toolbar{padding:10px 10px 11px;display:block}.pf-scenarios{gap:3px}.pf-scenarios button{flex:1;padding:8px 7px;font-size:11px;gap:5px;justify-content:center}.pf-progress{margin:10px 3px 0;justify-content:space-between}.pf-scene-label{left:11px;top:11px;font-size:8px;padding:5px 7px}.pf-scene-note{right:11px;top:17px;font-size:8px}.pf-hit>span{width:21px;height:21px;font-size:10px}.pf-divider>span{width:26px;height:35px;left:9px;font-size:18px}.pf-compare{padding:14px 15px}.pf-view-actions button{font-size:11px;padding:8px 12px}.pf-slider-row{gap:10px}.pf-controls-hint{font-size:10px!important}.pf-task{display:flex;padding:22px 19px;gap:0}.pf-task-top{margin-bottom:16px}.pf-task h2{font-size:25px}.pf-instructions{display:none}.pf-answer-options{margin:0 0 18px}.pf-answer-options button{min-height:44px;font-size:12px}.pf-feedback{min-height:97px}.pf-finish{display:block;padding:25px}.pf-finish h2{font-size:28px}.pf-finish-actions{margin-top:20px}.pf-footnote{margin-bottom:40px}.pf-explainer,.pf-cta{grid-template-columns:1fr;gap:27px}.pf-explainer{padding-top:35px}.pf-explainer h2 br,.pf-cta h2 br{display:none}.pf-cta{padding:26px;margin-top:0}.pf-details summary{font-size:14px}}
@media(prefers-reduced-motion:reduce){#bim-project-fact *{scroll-behavior:auto!important;transition:none!important}}
#bim-project-fact .pf-experience{scroll-margin-top:100px}
#bim-project-fact.pf-compact{padding:40px 0}
#bim-project-fact.pf-compact .pf-wrap{width:min(1180px,calc(100% - 48px))}
.pf-teaser-card{display:grid;grid-template-columns:1fr 1.05fr;border:1px solid var(--pf-line);border-radius:22px;overflow:hidden;background:var(--pf-card)}
.pf-teaser-copy{padding:30px 34px;align-self:center}.pf-teaser-copy h2{font-size:clamp(27px,2.7vw,38px);line-height:1.1;letter-spacing:-.04em;margin:18px 0}.pf-teaser-copy h2 em{font-style:normal;color:var(--pf-blue)}.pf-teaser-copy p{font-size:13px;color:var(--pf-muted);margin:0 0 20px;min-height:42px;max-width:375px}.pf-teaser-copy .pf-primary{min-height:44px!important;font-size:12px!important;padding:10px 14px!important}.pf-teaser-link{display:block;width:fit-content;font-size:12px;margin-top:15px}.pf-teaser-copy small{display:block;color:var(--pf-muted);font-size:10px;margin-top:20px}.pf-teaser-visual{min-width:0;align-self:center}.pf-teaser-visual .pf-slider-row{padding:0 22px;margin:4px 0}.pf-teaser-visual .pf-scene{border-bottom-left-radius:12px}.pf-compact .pf-scene-label{top:12px;left:13px}.pf-compact .pf-scene-note{top:20px;right:13px}.pf-compact .pf-divider>span{height:34px}
@media(max-width:800px){.pf-teaser-copy{padding:24px}.pf-teaser-copy h2{font-size:29px}.pf-teaser-copy .pf-kicker{font-size:8px}.pf-compact .pf-scene-note{display:none}}
@media(max-width:600px){#bim-project-fact.pf-compact{padding:24px 0}#bim-project-fact.pf-compact .pf-wrap{width:calc(100% - 28px)}.pf-teaser-card{grid-template-columns:1fr;border-radius:16px}.pf-teaser-copy{padding:23px 22px 17px}.pf-teaser-copy h2{font-size:29px;margin:12px 0}.pf-teaser-copy p{font-size:12px;min-height:39px;margin-bottom:14px}.pf-teaser-copy small{display:none}.pf-teaser-link{margin:13px 0 0}.pf-teaser-visual .pf-scene{border-radius:0}.pf-teaser-visual .pf-slider-row{padding:0 15px}.pf-compact .pf-scene-note{display:block}}
.pf-scene{aspect-ratio:8/5;--pf-transform:translate(0,0) scale(1);--pf-scale:1}
.pf-image-layer,.pf-model-clip{position:absolute;inset:0}
.pf-image-layer{transform:var(--pf-transform);transform-origin:0 0;will-change:transform}
.pf-image-layer img,.pf-overlays>svg{display:block;width:100%;height:100%;max-width:none;object-fit:contain;pointer-events:none}
.pf-overlays{pointer-events:none}
.pf-scene-note{background:#ffffffe0;border-radius:4px;padding:3px 6px;top:22px;color:#686575}
.pf-scene .pf-hit{transform:translate(-50%,-50%) scale(calc(1 / var(--pf-scale)))}
.pf-scene .pf-zoom{position:absolute;right:12px;bottom:12px;z-index:5;min-height:44px;padding:7px 12px;border:1px solid #ffffffba;border-radius:8px;color:#40304f;background:#fffffff0;box-shadow:0 2px 10px #0001;font-size:11px;font-weight:650}
.pf-scene .pf-zoom[aria-pressed=true]{background:#f0e9ff;color:#6d36d9}
.pf-loading{position:absolute;inset:0;z-index:6;background:var(--pf-card);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;color:var(--pf-ink);font-size:13px;text-align:center;padding:24px}
.pf-loading:before{content:"";width:25px;height:25px;border:2px solid var(--pf-line);border-top-color:var(--pf-blue);border-radius:7px;animation:pf-load 1.3s linear infinite}
.pf-loading button{padding:10px 20px;border:1px solid var(--pf-line);border-radius:8px;background:var(--pf-soft);color:var(--pf-ink);min-height:44px}
@keyframes pf-load{to{transform:rotate(180deg)}}
@media(max-width:560px){.pf-scene-note{top:12px}.pf-scene .pf-zoom{bottom:8px;right:8px;padding:7px 9px;font-size:10px}.pf-compact .pf-scene-note{top:14px}}
@media(prefers-reduced-motion:reduce){.pf-loading:before{animation:none}}
.pf-view-actions{flex-wrap:wrap}
.pf-duct-section{margin:0;padding:20px 25px;border-top:1px solid var(--pf-line);background:var(--pf-soft)}
.pf-section-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.pf-section-key{display:flex;align-items:center;gap:7px;font-size:10px;color:var(--pf-muted)}
.pf-section-key:before{content:"";width:11px;height:11px;background:repeating-linear-gradient(135deg,#ffb16b 0 3px,#a64d18 3px 4px);border:1px solid #a64d18;border-radius:2px}
.pf-duct-section svg{display:block;width:100%;max-width:680px;height:auto;margin:8px auto}
.pf-duct-section svg text{fill:var(--pf-ink);font:17px Inter,system-ui,sans-serif}
.pf-section-beam{fill:#8b99a4;stroke:#566b7b;stroke-width:2}
.pf-section-duct{fill:#8b4dff26;stroke:var(--pf-blue);stroke-width:2}
.pf-section-line,.pf-section-measure{fill:none;stroke:var(--pf-ink);stroke-width:1.5}
.pf-duct-section svg .pf-section-dimension{font-weight:700}
.pf-duct-section figcaption{color:var(--pf-muted);font-size:12px;line-height:1.6;max-width:620px}
@media(max-width:560px){.pf-duct-section{padding:17px 15px}.pf-duct-section svg text{font-size:22px}.pf-duct-section figcaption{font-size:11px}}

/* Readable article content and native anchor navigation below the interactive. */
#bim-project-fact .pf-intro h1{font-size:clamp(34px,3.7vw,56px);line-height:1.12;letter-spacing:-.045em}
#bim-project-fact .pf-nowrap{white-space:nowrap}
#bim-project-fact .pf-toc{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin:0 0 30px;padding:16px 0;border-top:1px solid var(--pf-line);border-bottom:1px solid var(--pf-line);font-size:12px;line-height:1.6}
#bim-project-fact .pf-toc>span{color:var(--pf-muted);font-weight:650;margin-right:4px}
#bim-project-fact .pf-toc a:hover,#bim-project-fact .pf-guide a:hover,#bim-project-fact .pf-details a:hover{text-decoration:underline}
#bim-project-fact section[id]{scroll-margin-top:110px}
#bim-project-fact .pf-guide{padding:50px 0;border-top:1px solid var(--pf-line)}
#bim-project-fact .pf-guide-heading{max-width:800px;margin-bottom:30px}
#bim-project-fact .pf-guide h2{font-size:clamp(28px,3vw,42px);line-height:1.15;letter-spacing:-.04em;margin:17px 0}
#bim-project-fact .pf-guide p{color:var(--pf-muted);font-size:14px;line-height:1.8;margin:10px 0 0}
#bim-project-fact .pf-guide h3{font-size:18px;line-height:1.4;margin:0;font-weight:650;letter-spacing:-.015em}
#bim-project-fact .pf-steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:0;padding:0;list-style:none;counter-reset:pf-step}
#bim-project-fact .pf-steps>li{counter-increment:pf-step;position:relative;padding:27px 26px 27px 62px;border:1px solid var(--pf-line);border-radius:16px;background:var(--pf-card)}
#bim-project-fact .pf-steps>li:before{content:counter(pf-step,decimal-leading-zero);position:absolute;top:28px;left:24px;color:var(--pf-blue);font-size:13px;font-weight:700}
#bim-project-fact .pf-guide-copy{max-width:900px;padding-left:26px;border-left:2px solid var(--pf-blue)}
#bim-project-fact .pf-guide-copy h3:not(:first-child){margin-top:25px}
#bim-project-fact .pf-byline{font-size:12px;line-height:1.7;color:var(--pf-muted);margin:0 0 28px}
@media(max-width:560px){#bim-project-fact .pf-intro h1{font-size:clamp(31px,8.5vw,42px)}#bim-project-fact .pf-toc{gap:8px 17px;font-size:11px}#bim-project-fact .pf-toc>span{flex-basis:100%}#bim-project-fact .pf-guide{padding:35px 0}#bim-project-fact .pf-steps{grid-template-columns:1fr;gap:12px}#bim-project-fact .pf-steps>li{padding:23px 20px 23px 52px}#bim-project-fact .pf-steps>li:before{left:19px;top:24px}#bim-project-fact .pf-guide-copy{padding-left:18px}}