@font-face{font-family:Roboto;src:url('../../assets/font/Roboto-VariableFont.ttf') format('truetype');font-display:swap;font-weight:100 900}
:root{--red:#b11f24;--ink:#22272c;--muted:#767a7c;--border:#e4e4df;--paper:#f5f4f1;--white:#fff;font-family:Roboto,-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.4}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #b11f2480;outline-offset:4px}button{color:inherit}button[hidden],[hidden]{display:none!important}
.site-header{height:80px;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 4.5%;gap:25px;background:#fafaf8}.brand{display:flex;align-items:center}.brand img{width:180px;max-height:35px}.header-divider{height:22px;width:1px;background:#d6d6d0}.header-caption{font-size:10px;letter-spacing:2.5px;color:var(--muted)}.back-link{margin-left:auto;font-size:12px;display:flex;gap:15px;align-items:center}.back-link span{font-size:22px;color:var(--red)}.experience{max-width:1680px;margin:auto;padding:38px 4.5% 0}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px;gap:20px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:600;color:var(--muted);margin:0 0 13px}.red-dot,.status-dot{display:inline-block;background:var(--red);width:6px;height:6px;border-radius:50%;margin-right:9px}.intro h1{font-size:clamp(26px,2.6vw,40px);font-weight:500;letter-spacing:-1px;margin:0 0 12px}.intro h1 span{color:var(--red)}.intro-copy{font-size:13px;color:var(--muted);margin:0;letter-spacing:.3px}.model-badge{text-align:right;font-size:11px;line-height:1.9}.model-badge span{display:block}.model-badge small{color:var(--muted);font-size:10px}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 340px;background:var(--white);border:1px solid #deded8;border-radius:16px;overflow:hidden;box-shadow:0 14px 45px #282c3010}.viewer-panel{position:relative;min-width:0;min-height:650px;overflow:hidden;background:radial-gradient(ellipse at 48% 37%,#fff 0,#efefeb 70%,#e5e7e2 100%)}#canvas-host{position:absolute;inset:0}#canvas-host canvas{width:100%;height:100%;display:block;touch-action:none;outline:none;opacity:0;transition:opacity .45s ease}
.viewer-panel.ready #canvas-host canvas{opacity:1}
.viewer-panel:not(.ready) #canvas-host canvas{pointer-events:none}.fallback-image{position:absolute;width:78%;height:70%;object-fit:contain;left:11%;top:12%;mix-blend-mode:multiply;opacity:.15}.viewer-panel.failed .fallback-image{opacity:1;filter:blur(2px)}.viewer-topline,.viewer-bottomline{position:absolute;left:26px;right:26px;display:flex;justify-content:space-between;gap:15px;pointer-events:none;z-index:2}.viewer-topline{top:25px;font-size:10px;letter-spacing:.7px}.live-label{display:flex;align-items:center}.status-dot{background:#aaa;margin-right:7px}.status-dot.ready{background:#66796c;box-shadow:0 0 0 3px #66796c12}.cad-label{color:#929691;font-size:9px;letter-spacing:1.5px}.viewer-bottomline{bottom:21px;color:#777c78;font-size:10px;align-items:center}.viewer-bottomline span:last-child{font-family:Roboto,monospace;letter-spacing:1px;font-size:9px;white-space:nowrap}.view-presets{position:absolute;top:64px;left:25px;display:flex;gap:3px;z-index:3;padding:4px;background:#ffffffa6;border:1px solid #ffffffc0;border-radius:9px;backdrop-filter:blur(10px)}.view-presets button{border:0;background:none;padding:8px 13px;border-radius:5px;font-size:11px;color:#777}.view-presets button.active{background:white;color:var(--red);box-shadow:0 1px 5px #0000000b}.viewer-tools{position:absolute;right:22px;bottom:62px;z-index:3;display:flex;flex-direction:column;gap:7px}.viewer-tools button{width:36px;height:36px;border:1px solid #deded6;background:#ffffffc9;border-radius:9px;font-size:21px;line-height:1;backdrop-filter:blur(10px);transition:.2s}.viewer-tools button:hover{background:white;border-color:#b11f2470}.viewer-tools button[aria-pressed=true]{background:var(--red);color:white;border-color:var(--red)}.axis-legend{position:absolute;left:28px;bottom:65px;font-size:9px;color:#89928b;pointer-events:none;line-height:1.6;display:flex;flex-direction:column;align-items:center}.axis-legend i{height:19px;border-left:1px solid #93a799}.axis-legend span{border-top:1px solid #a6aaa2;padding-top:3px;letter-spacing:5px}
.loading-card{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);width:min(330px,85%);padding:28px;text-align:center;background:#ffffffec;border:1px solid white;border-radius:14px;box-shadow:0 10px 45px #2222220d;z-index:5}.loading-card strong{font-size:14px;font-weight:500}.loading-card p{font-size:11px;line-height:1.8;color:var(--muted);margin:12px 0}.loading-card progress{width:100%;height:4px;accent-color:var(--red);border:0}.loading-orbit{height:30px;width:30px;border:1px solid #e5d5d4;border-top:2px solid var(--red);border-radius:50%;margin:0 auto 22px;animation:orbit 1s linear infinite}.failed .loading-orbit{animation:none;border:1px solid var(--red)}.loading-card a{font-size:12px;display:block;margin-top:18px;color:var(--red)}
.loading-card.done{opacity:0;pointer-events:none;transition:opacity .3s ease}
.load-percent{display:block;margin-top:8px;font-size:10px;letter-spacing:1px;color:var(--muted)}
progress.indeterminate{opacity:.6}.text-button{border:1px solid #ddd;border-radius:6px;padding:8px 14px;background:white;font-size:12px}.hotspots{position:absolute;inset:0;pointer-events:none;z-index:2;overflow:hidden}.hotspot{position:absolute;left:0;top:0;pointer-events:auto;border:1px solid #ffffffdf;background:#ffffffed;border-radius:20px;padding:5px 10px 5px 5px;box-shadow:0 3px 12px #00000014;display:flex;align-items:center;gap:6px;white-space:nowrap;font-size:10px;color:#4d5050;will-change:transform}.hotspot b{font-size:9px;font-weight:500;display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--red);color:white}.hotspot.active{border-color:var(--red)}
.inspector{border-left:1px solid var(--border);padding:27px 24px;position:relative;z-index:4;background:#fff}.inspector-heading{display:flex;justify-content:space-between;gap:8px;align-items:center}.inspector-heading .eyebrow{font-size:8px;letter-spacing:1.3px;margin:0}.edition{font-size:9px;color:#999;white-space:nowrap}.inspector h2{font-size:19px;font-weight:500;margin:20px 0 9px;letter-spacing:-.5px}.panel-copy{font-size:11px;color:var(--muted);margin:0 0 18px}.component-list{display:flex;flex-direction:column;gap:5px}.component-button{display:grid;grid-template-columns:28px 1fr 15px;gap:7px;align-items:center;text-align:left;border:1px solid transparent;background:#f8f8f5;border-radius:8px;padding:11px 12px;transition:background .2s,border .2s}.component-button:hover{background:#f1efeb}.component-button.active{border-color:#b11f2435;background:#fbf0ef}.component-number{font-size:10px;color:#a5a5a0;font-family:Roboto,monospace}.component-button.active .component-number{color:var(--red)}.component-button strong{font-size:12px;font-weight:500;display:block}.component-button small{font-size:9px;color:#8d908b;display:block;margin-top:3px;letter-spacing:.2px}.component-arrow{font-size:17px;color:#999}.selection-card{border-top:1px solid var(--border);margin-top:20px;padding-top:17px}.detail-kicker{font-size:9px;color:var(--red);letter-spacing:1px}.selection-card h3{font-size:13px;font-weight:500;margin:8px 0}.selection-card p{font-size:11px;line-height:1.9;color:#777;margin:0 0 9px;min-height:42px}.part-id{font-family:Roboto,sans-serif;font-size:9px;color:#999;display:block;line-height:1.6}.selection-actions{display:flex;gap:10px;margin-top:11px}.selection-actions button{background:white;border:1px solid #deded8;border-radius:5px;font-size:10px;padding:6px 11px}.selection-actions button[aria-pressed=true]{color:var(--red);border-color:var(--red)}.structure-control{margin-top:21px}.control-label{display:flex;justify-content:space-between;align-items:center;font-size:11px}.control-label output{font-family:Roboto,monospace;font-size:10px;color:var(--red)}input[type=range]{width:100%;accent-color:var(--red);height:20px;margin:9px 0 1px;cursor:pointer}.structure-control p{font-size:9px;color:#92958f;line-height:1.8;margin:2px 0}.display-options{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:17px}
.demo-note{font-size:9px;color:#92958f;line-height:1.7;margin:10px 0 0}.display-options label{font-size:10px;display:flex;align-items:center;gap:5px;white-space:nowrap}input[type=checkbox]{accent-color:var(--red);width:13px;height:13px;margin:0}.tour-button{background:var(--ink);color:white;border:0;border-radius:6px;padding:10px 11px;font-size:10px;display:flex;gap:12px}.tour-progress{display:flex;align-items:center;gap:8px;margin-top:14px;padding:10px;background:#f6f5f1;border-radius:6px;font-size:10px}.tour-progress button{border:0;background:none;font-size:10px;padding:5px;color:var(--red)}#tour-next{margin-left:auto}
.experience-footer{padding-top:25px}.spec-strip{display:flex;gap:50px;align-items:center;border-bottom:1px solid var(--border);padding-bottom:23px}.spec-strip>div{display:flex;flex-direction:column;gap:7px}.spec-strip strong{font-size:16px;font-weight:500;letter-spacing:.2px}.spec-strip small{font-size:10px;font-weight:400;color:#8a8e88}.spec-strip>div>span{color:#8a8e88;font-size:10px}.spec-strip>a{margin-left:auto;font-size:12px;display:flex;align-items:center;gap:25px;color:var(--red)}.spec-strip>a span{font-size:22px}.disclaimer{font-size:10px;color:#8e918b;line-height:1.9;margin:16px 0 27px}.disclaimer p{margin:0 0 6px}.disclaimer p:last-child{margin:0}.disclaimer p>span:first-child{color:#666;margin-right:12px;font-weight:500}
.disclaimer p.legal-notice{display:flex;gap:9px;align-items:flex-start;border:1px solid #ffc107;background:rgba(255,193,7,.1);border-radius:.5rem;padding:10px 14px;margin:0 0 10px;color:#6c757d}
.disclaimer p.legal-notice .legal-icon{flex:0 0 auto;width:15px;height:15px;margin-top:2px;fill:#ffc107}
.disclaimer p.legal-notice .legal-label{color:#666;font-weight:500;margin-right:10px}
.embed .disclaimer p.legal-notice{padding:7px 10px;margin:0 0 5px;border-radius:.4rem}.site-footer{padding:20px 4.5%;border-top:1px solid var(--border);display:flex;justify-content:space-between;font-size:10px;color:#8e918b}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.noscript{position:fixed;left:15%;right:15%;top:35%;padding:25px;background:white;border:1px solid var(--red);z-index:20}.noscript a{color:var(--red)}.viewer-panel:fullscreen{width:100vw;height:100vh;border-radius:0;background:#edeee9}
@keyframes orbit{to{transform:rotate(360deg)}}
@media(min-width:1500px){.viewer-panel{min-height:710px}.inspector{padding:32px}.workspace{grid-template-columns:minmax(0,1fr) 370px}.component-button{padding:14px 12px}}
@media(max-width:1050px){.workspace{grid-template-columns:minmax(0,1fr) 300px}.inspector{padding:24px 18px}.cad-label{display:none}.viewer-panel{min-height:670px}.view-presets{left:18px}.viewer-topline,.viewer-bottomline{left:20px;right:20px}.viewer-bottomline span:first-child{max-width:200px;line-height:1.7}.spec-strip{gap:30px}}
@media(max-width:760px){.site-header{height:65px;padding:0 5%;gap:14px}.brand img{width:145px}.header-caption{display:none}.header-divider{display:none}.back-link{font-size:11px}.experience{padding:27px 4% 0}.intro{margin-bottom:22px}.eyebrow{font-size:8px;letter-spacing:1.1px}.intro h1{font-size:27px}.intro-copy{font-size:10px;line-height:1.8}.model-badge{display:none}.workspace{grid-template-columns:1fr;border-radius:12px}.viewer-panel{min-height:440px;height:57svh;max-height:620px}.viewer-topline{top:18px;font-size:9px}.view-presets{top:48px;left:16px}.view-presets button{padding:7px 12px;font-size:10px}.viewer-tools{bottom:56px;right:15px;gap:6px}.viewer-tools button{width:32px;height:32px;font-size:20px}.viewer-bottomline{bottom:16px;font-size:8px;left:17px;right:17px}.viewer-bottomline span:first-child{max-width:200px}.viewer-bottomline span:last-child{font-size:8px}.axis-legend{left:20px;bottom:58px}.hotspot{font-size:9px;padding-right:8px;gap:4px}.hotspot b{width:17px;height:17px;font-size:8px}.inspector{border-left:0;border-top:1px solid var(--border);padding:22px}.inspector h2{font-size:20px;margin-top:17px}.component-list{display:grid;grid-template-columns:1fr 1fr;gap:7px}.component-button{padding:12px 8px;grid-template-columns:21px 1fr 10px;gap:4px}.component-button strong{font-size:11px}.component-button small{font-size:8px}.selection-card{margin-top:18px}.selection-card p{min-height:0}.spec-strip{flex-wrap:wrap;gap:22px;align-items:flex-start}.spec-strip strong{font-size:13px}.spec-strip>div>span{font-size:8px}.spec-strip>a{width:100%;font-size:11px;justify-content:space-between;border-top:1px solid var(--border);padding-top:15px}.disclaimer{font-size:9px}.site-footer{padding:18px 5%;font-size:9px;gap:15px}.loading-card{padding:23px}}
@media(max-width:760px){.hotspot{padding:6px;border-radius:50%;min-width:36px;min-height:36px;justify-content:center}.hotspot b{width:24px;height:24px;font-size:10px}.hotspot span{display:none}.viewer-tools button{width:36px;height:36px}}
.compat-banner{position:absolute;left:0;right:0;top:0;z-index:7;background:#fff8e1;border-bottom:1px solid #ffc107;color:#6d5300;font-size:11px;line-height:1.7;padding:10px 16px}
.stage-watermark{position:absolute;inset:0;z-index:1;pointer-events:none;user-select:none;-webkit-user-select:none;background-repeat:repeat;background-size:300px 190px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='190' viewBox='0 0 300 190'%3E%3Cg transform='rotate(-24 150 95)'%3E%3Ctext x='150' y='95' text-anchor='middle' font-family='Roboto,Arial,sans-serif' font-size='17' letter-spacing='3' fill='%2340464a' fill-opacity='0.09'%3Esitrantech.com%3C/text%3E%3C/g%3E%3C/svg%3E")}
.stage-brand{position:absolute;top:48px;right:26px;z-index:2;pointer-events:none;user-select:none;-webkit-user-select:none;font-size:10px;letter-spacing:1.6px;color:#5c615e;opacity:.62;font-weight:500;white-space:nowrap}
.stage-brand::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--red);margin-right:7px;vertical-align:1px}
.fullscreen-exit{position:absolute;top:16px;right:16px;z-index:5;display:none;align-items:center;gap:8px;border:1px solid #ffffffb8;background:#00000078;color:#fff;border-radius:999px;padding:10px 18px;font-size:12px;font-weight:500;letter-spacing:.4px;backdrop-filter:blur(8px);min-height:44px}
.fullscreen-exit:hover{background:#000000a0;border-color:#fff}
body.is-fullscreen .fullscreen-exit{display:inline-flex}
body.is-fullscreen .cad-label{display:none}
body.is-fullscreen .stage-brand{top:74px;right:20px}
.embed-banner{position:absolute;left:0;right:0;bottom:0;z-index:7;background:#ffffffee;border-top:1px solid var(--border);backdrop-filter:blur(8px);padding:12px 16px;display:flex;gap:14px;align-items:center;justify-content:space-between;font-size:11px;line-height:1.7;color:#6b6f6a}
.embed-banner a{color:var(--red);white-space:nowrap;font-weight:500}
body.embed{overflow:hidden}
.embed .site-header,.embed .intro,.embed .experience-footer,.embed .site-footer{display:none}
.embed .experience{padding:0;max-width:none}
.embed .workspace{border:0;border-radius:0;box-shadow:none;min-height:100svh}
.embed .viewer-panel{min-height:100svh}
.embed .inspector{max-height:100svh;overflow-y:auto}
.embed .disclaimer{position:absolute;left:0;right:0;bottom:0;margin:0;padding:6px 16px;background:#ffffffd9;border-top:1px solid var(--border);font-size:9px;line-height:1.6;z-index:6;backdrop-filter:blur(6px)}
.embed .viewer-bottomline{bottom:34px}
.embed .viewer-tools{bottom:74px}
@media(max-width:760px){.embed .workspace{grid-template-columns:1fr}.embed .inspector{display:none}.embed .disclaimer{display:none}.embed .viewer-bottomline{bottom:16px}.embed .viewer-tools{bottom:56px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}