:root{--ink:#183747;--muted:#5f737d;--line:#dce7eb;--blue:#387c9c;--ice:#edf5f7;--amber:#c4943e;--teal:#5a9b94}*{box-sizing:border-box}body{margin:0;background:white;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.6}button,input,select{font:inherit}button,a,input{touch-action:manipulation}a{color:inherit;text-decoration:none}button{cursor:pointer;color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #1e749e;outline-offset:4px}[hidden]{display:none!important}.skip{position:fixed;top:-100px;left:20px;background:#183747;color:white;padding:12px;z-index:100}.skip:focus{top:10px}header{height:94px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5vw}.brand{display:flex;align-items:center;gap:26px}.brand img{width:158px;height:auto}.brand span{font-size:16px;border-left:1px solid var(--line);padding-left:26px}.back{font-size:14px;color:var(--muted)}main{max-width:1540px;margin:auto;padding:0 5vw}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding:42px 0 35px}.eyebrow{font-size:11px;font-weight:600;letter-spacing:2px;color:var(--muted);margin:0 0 10px}.intro h1{font-size:38px;font-weight:500;letter-spacing:-1px;margin:0}.intro>p{font-size:15px;color:var(--muted);margin:0 0 5px}.mode-nav{display:flex;border-bottom:1px solid var(--line);gap:45px}.mode-nav button{border:0;border-bottom:3px solid transparent;background:none;padding:12px 0 17px;text-align:left;min-height:68px}.mode-nav button.active{border-color:var(--blue)}.mode-nav span{font-size:16px}.mode-nav small{display:block;font-size:10px;letter-spacing:1px;color:var(--muted);margin-top:5px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 330px;min-height:605px;border-bottom:1px solid var(--line)}.visual{position:relative;min-width:0;min-height:605px;background:#fbfdfe;overflow:hidden}.scene-head{position:absolute;top:24px;left:28px;right:28px;display:flex;justify-content:space-between;z-index:2;font-size:12px;pointer-events:none}.scene-head>span:first-child{padding:2px 9px;border:1px solid #cddde3;color:#4e6a78;background:#ffffffca}.scene-head>span:last-child{font-family:ui-monospace,Menlo,monospace;letter-spacing:1px;padding-top:3px;color:#6c8490}.viewport{position:absolute;inset:0}.viewport canvas{display:block;outline:none}.scene-annotation{position:absolute;left:30px;bottom:77px;pointer-events:none;display:flex;flex-direction:column}.scene-annotation strong{font-size:25px;font-weight:500}.scene-annotation span{font-size:12px;color:var(--muted)}.viewer-footer{position:absolute;bottom:0;left:0;right:0;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:16px 24px;background:#ffffffd9;z-index:2}.viewer-footer>span{font-size:11px;color:var(--muted)}.view-buttons{display:flex;gap:4px}.view-buttons button{border:1px solid #d2e1e6;background:white;min-width:38px;height:36px;font-size:18px}.view-buttons button:last-child{font-size:12px;padding:0 10px}.inspector{padding:27px 0 28px 30px;border-left:1px solid var(--line);background:white}h2{font-weight:500;font-size:25px;line-height:1.4;margin:0 0 15px}.description{font-size:14px;line-height:1.9;color:var(--muted);margin:0 0 24px}fieldset{border:0;padding:0;margin:0 0 18px}legend{font-size:12px;margin-bottom:10px;color:var(--muted)}.choices{display:flex;flex-wrap:wrap;gap:5px}.choices button{font-size:12px;border:1px solid var(--line);background:white;min-height:39px;padding:6px 11px}.choices button.selected{border-color:var(--blue);background:var(--ice);color:#205d7a}.vertical{display:grid;grid-template-columns:1fr}.vertical button{text-align:left;padding:8px 13px}.check{display:flex;align-items:center;gap:10px;font-size:13px;min-height:36px;cursor:pointer}.check input{accent-color:var(--blue);width:16px;height:16px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;flex-shrink:0}.amber{background:var(--amber)}.blue{background:var(--blue)}.teal{background:var(--teal)}.grey{background:#c5d0d6}.check .dot{margin-left:auto}.primary{margin:15px 0 20px;display:flex;justify-content:space-between;width:100%;border:0;background:var(--ink);color:white;padding:11px 15px;font-size:13px}.facts{margin:0}.facts>div{display:flex;justify-content:space-between;font-size:11px;padding:7px 0;border-bottom:1px solid #edf2f4}.facts dt{color:var(--muted)}.facts dd{margin:0}.note{font-size:11px;color:#687d86;line-height:1.8;margin:18px 0 6px}.source{font-size:11px;color:#356b83;border-bottom:1px solid #b5ccd6}.loading{position:absolute;inset:0;display:grid;place-content:center;background:#fbfdfe;z-index:3;font-size:14px;color:var(--muted);text-align:center;padding:30px}.range{display:block;margin:20px 0}.range>span{display:flex;justify-content:space-between;font-size:12px}.range input{width:100%;accent-color:var(--blue);margin:13px 0 0;cursor:pointer}.range output{font-family:ui-monospace,Menlo,monospace;color:var(--blue)}.response{border-top:1px solid var(--line);padding-top:18px;margin-top:21px}.response>span{font-size:10px;letter-spacing:1px;color:var(--muted)}.response h3{font-size:16px;font-weight:500;margin:7px 0}.response p{font-size:12px;color:var(--muted);margin:0;line-height:1.9}.legend{display:flex;gap:18px;margin-top:23px;flex-wrap:wrap;font-size:11px;color:var(--muted)}.legend>span{display:flex;align-items:center;gap:6px}.selection-result{display:flex;align-items:center;gap:10px;padding:3px 0 20px;border-bottom:1px solid var(--line)}.selection-result strong{font-size:47px;line-height:1.2;font-weight:400}.selection-result span{font-size:11px;color:var(--muted)}.candidate-select{font-size:12px;display:block;margin:20px 0 8px}.candidate-select select{width:100%;padding:10px;margin-top:8px;background:white;border:1px solid var(--line);color:var(--ink);font-size:12px}.candidate-detail{font-size:12px;color:var(--muted);min-height:65px;line-height:1.8}.candidate-detail strong{color:var(--ink);font-weight:500}.handoff{display:grid;grid-template-columns:1.2fr 1fr auto;gap:45px;align-items:center;padding:38px 0 42px}.handoff>div>span{color:var(--muted);font-size:11px}.handoff h2{font-size:19px;margin:7px 0 0}.handoff>p{font-size:12px;color:var(--muted);line-height:1.9;margin:0}.handoff>a{font-size:12px;border-bottom:1px solid #b5ccd6;white-space:nowrap}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;padding:22px 5vw;font-size:10px;color:var(--muted)}@media(min-width:1600px){.visual,.workspace{min-height:660px}}@media(max-width:1050px){main{padding:0 4vw}.workspace{grid-template-columns:minmax(0,1fr) 295px}.inspector{padding-left:23px}.intro h1{font-size:33px}.viewer-footer{display:block;padding:12px 20px}.view-buttons{justify-content:flex-end;margin-top:5px}.scene-annotation{bottom:105px}.handoff{gap:25px;grid-template-columns:1fr 1fr}.handoff>a{justify-self:start}}@media(max-width:740px){header{height:76px;padding:0 20px}.brand{gap:15px}.brand img{width:122px}.brand span{font-size:12px;padding-left:15px}.back{display:none}main{padding:0 20px}.intro{padding:29px 0 22px;display:block}.intro h1{font-size:29px}.intro>p{font-size:12px;margin-top:13px}.intro>p br{display:none}.eyebrow{font-size:10px}.mode-nav{gap:0;justify-content:space-between}.mode-nav small{font-size:8px;letter-spacing:.4px}.mode-nav span{font-size:14px}.workspace{grid-template-columns:1fr}.visual{min-height:430px;margin:0 -20px}.inspector{padding:25px 0;border-left:0;border-top:1px solid var(--line)}.scene-head{top:18px;left:20px;right:20px;font-size:10px}.scene-annotation{left:20px;bottom:85px}.scene-annotation strong{font-size:22px}.scene-annotation span{font-size:10px}.viewer-footer{display:flex;padding:12px 15px;gap:8px}.viewer-footer>span{font-size:9px;max-width:105px}.view-buttons{margin:0;gap:3px}.view-buttons button{min-width:34px;height:38px}.description{font-size:14px}.choices button{font-size:13px;padding:9px 17px}.check{font-size:14px;min-height:42px}.facts>div{font-size:12px;padding:9px 0}.note,.source{font-size:12px}.primary{font-size:14px;min-height:45px}.range>span,.candidate-select{font-size:14px}.candidate-select select{font-size:14px;min-height:44px}.vertical{grid-template-columns:repeat(3,1fr)}.vertical button{font-size:12px;padding:9px 5px;text-align:center}.response p,.candidate-detail{font-size:14px}.handoff{grid-template-columns:1fr;gap:18px;padding:26px 0}.handoff h2{font-size:20px}.handoff>p,.handoff>a{font-size:14px}.handoff>div>span{font-size:12px}footer{padding:20px;display:block;line-height:2}footer span{display:block}.legend{font-size:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.embedded header,.embedded .intro,.embedded .handoff,.embedded footer{display:none}.embedded main{padding:0;max-width:none}.embedded .mode-nav{padding-inline:28px}.embedded .inspector{padding-right:25px}.embedded .workspace{border-bottom:0}.embedded .visual{margin:0}@media(max-width:740px){.embedded .mode-nav{padding-inline:16px}.embedded .inspector{padding:24px 20px}.embedded .visual{min-height:420px}}

/* Keep the Three.js canvas clear of labels and controls on compact screens. */
@media(max-width:740px){
 .visual:has(#three-view:not([hidden])),.embedded .visual:has(#three-view:not([hidden])){min-height:510px}
 #three-view{top:54px;bottom:138px}
 .scene-head{gap:8px}
 .scene-head>span:last-child{font-size:9px;letter-spacing:.4px;text-align:right}
 .scene-annotation{bottom:83px;right:18px}
 .scene-annotation span{max-width:100%;overflow-wrap:anywhere}
 .viewer-footer{min-height:67px}
}
@media(max-width:359px){
 .embedded .mode-nav{padding-inline:10px}.mode-nav small{font-size:7px;letter-spacing:0}
 .view-buttons button{min-width:30px;padding-inline:5px}
 .viewer-footer{padding-inline:10px}.viewer-footer>span{max-width:80px}
}