:root{font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;color:#183448;background:#eef2f5;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,a,input{touch-action:manipulation}button{font:inherit;font-size:14px;cursor:pointer;border:1px solid #d5dfe5;background:white;border-radius:7px;padding:10px 13px;color:#183448}button:hover{background:#e7f4ef;border-color:#40b79a}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #1a977c;outline-offset:3px}button:disabled{opacity:.4;cursor:default}header{height:80px;display:flex;align-items:center;justify-content:space-between;padding:0 30px;background:#fff;border-bottom:1px solid #dbe3e9;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;font-size:21px;font-weight:750}.brand small{font-size:10px;letter-spacing:2px;display:block;margin-top:3px;color:#70818d}.logo{background:#102c40;color:#73e1c2;border-radius:10px;width:40px;height:40px;display:grid;place-items:center}.edition{font-size:14px;color:#647786}header button span{background:#edf3f5;padding:2px 6px;border-radius:4px;margin-left:9px}main{display:grid;grid-template-columns:250px minmax(340px,1fr) 330px;min-height:calc(100vh - 80px)}.steps{padding:30px 20px;background:#f8fafb;border-right:1px solid #dbe3e9}.eyebrow{font-size:12px;font-weight:700;letter-spacing:1.8px;color:#608092}h1{font-size:23px;margin:14px 0 10px;letter-spacing:-1px}.intro{font-size:14px;line-height:1.8;color:#6b7e8b;margin:0 0 25px}nav{display:grid;gap:6px}nav button{display:flex;align-items:center;text-align:left;gap:12px;border-color:transparent;background:transparent;padding:12px 10px}nav button b{font-size:12px;border:1px solid #d6e0e5;width:27px;height:27px;display:grid;place-items:center;border-radius:50%;flex-shrink:0}nav button.active{background:#103c48;color:white}nav button.active b{color:#76e2c0;border-color:#578079}.source-note{font-size:12px;line-height:1.9;margin-top:28px;padding-top:20px;border-top:1px solid #dbe3e9;color:#6e7f8a}.workspace{position:relative;min-height:640px;background:radial-gradient(ellipse at 50% 40%,#fff,#e6edf2);overflow:hidden}.scene-top{position:absolute;top:25px;left:25px;right:25px;display:flex;justify-content:space-between;gap:8px;font-size:14px;z-index:1}.live{font-size:12px;color:#69828b}.scene-top #sceneLabel{font-weight:650}#viewport{position:absolute;inset:0 0 96px}canvas{display:block;touch-action:none}.view-buttons{position:absolute;left:22px;top:64px;display:flex;gap:5px;flex-wrap:wrap}.view-buttons button{padding:7px 10px;background:#ffffffca;font-size:12px}.scene-bottom{position:absolute;bottom:112px;left:22px;right:22px;display:flex;justify-content:space-between;font-size:12px;color:#70828e;gap:10px}.legend{white-space:nowrap}.legend i{display:inline-block;width:8px;height:8px;background:#0ca58b;border-radius:50%;margin:0 4px 0 10px}.legend i:nth-child(2){background:#aebcc6}.toolbar{position:absolute;bottom:20px;left:20px;right:20px;background:#fff;border:1px solid #d8e2e7;border-radius:10px;min-height:62px;display:flex;align-items:center;gap:12px;padding:12px 16px;flex-wrap:wrap;font-size:14px;box-shadow:0 5px 20px #18344808}.toolbar input[type=range]{flex:1;min-width:60px;width:80px;accent-color:#078e77}.toolbar output{font-size:12px;color:#6d7e8b}.check{display:flex;align-items:center;gap:5px;white-space:nowrap}.check input{accent-color:#078e77}#status{position:absolute;top:48%;left:12%;right:12%;text-align:center;background:#fffffff2;padding:18px;border-radius:9px;font-size:14px;pointer-events:none}#status:empty{display:none}.instructions{padding:30px 24px;background:#fff;border-left:1px solid #dbe3e9}h2{font-size:26px;line-height:1.3;margin:12px 0 16px}#stepDescription{font-size:15px;color:#657b89;line-height:1.9}.section-title{font-size:13px;font-weight:700;color:#587281;margin:24px 0 12px}#groupChips{display:flex;flex-wrap:wrap;gap:7px}.chip{font-size:12px;background:#edf4f5;border-radius:4px;padding:6px 8px}ol{padding-left:20px;font-size:15px;line-height:1.9}li{padding-left:4px;margin-bottom:12px}.checkpoint{border-left:3px solid #20aa8e;background:#eff8f5;padding:14px 15px;margin:20px 0}.checkpoint strong{font-size:14px}.checkpoint p{font-size:14px;line-height:1.8;margin:7px 0 0;color:#47685e}details{font-size:13px;color:#617886;line-height:1.9}summary{cursor:pointer}a{color:#087a6b}.pagination{display:flex;gap:10px;margin-top:24px}.pagination button{flex:1}#next{background:#103c48;color:white;border-color:#103c48}dialog{border:1px solid #dae4e8;border-radius:16px;width:min(820px,92vw);max-height:85vh;padding:26px;color:#183448}dialog::backdrop{background:#0a243b88;backdrop-filter:blur(5px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:10px}dialog p{font-size:14px;color:#617886;line-height:1.8}#partsList{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}#partsList button{text-align:left;display:flex;justify-content:space-between;gap:8px;padding:13px}#partsList small{color:#6c8591}.footnote{margin-top:22px}@media(min-width:1450px){main{grid-template-columns:275px minmax(400px,1fr) 380px}.instructions{padding:34px 30px}}@media(max-width:1120px){main{grid-template-columns:210px 1fr}.instructions{grid-column:1/-1;display:block}.workspace{min-height:620px}.steps{padding:24px 15px}.instructions ol{max-width:900px}}@media(max-width:650px){header{padding:0 16px;height:72px}.edition{display:none}.brand{font-size:18px}header button{font-size:12px}main{display:flex;flex-direction:column}.steps{padding:18px 16px;border:0}.steps h1{font-size:21px;margin:8px 0}.intro,.source-note{display:none}nav{display:flex;overflow-x:auto;margin-top:14px;padding-bottom:4px}nav button{white-space:nowrap;padding:7px 10px;font-size:13px}.steps .eyebrow{font-size:10px}.workspace{min-height:540px}.scene-top{left:16px;right:16px}.scene-bottom{bottom:148px;left:16px}.scene-bottom>span{display:none}.toolbar{left:12px;right:12px;bottom:14px;gap:10px}.toolbar label{font-size:13px}#viewport{bottom:120px}.instructions{padding:25px 22px}#partsList{grid-template-columns:repeat(2,1fr)}dialog{padding:20px}dialog h2{font-size:22px}}
/* Module-level disassembly workspace */
[hidden]{display:none!important}
main{grid-template-columns:235px minmax(360px,1fr) 400px;height:calc(100vh - 80px);min-height:600px}
.steps,.instructions{overflow-y:auto;scrollbar-width:thin}
.steps{padding:24px 16px}.steps h1{font-size:21px}.steps .intro{font-size:12px;margin-bottom:16px}
nav{gap:3px}nav button{padding:9px 8px;gap:9px}nav button span{flex:1}nav button small{font-size:11px;opacity:.7;white-space:nowrap}
.workspace{min-height:0}.instructions{padding:26px 22px}.instructions h2{font-size:25px;margin:10px 0}
#viewport{bottom:128px}#modelLabels{position:absolute;inset:0 0 128px;pointer-events:none;overflow:hidden}
.model-label{position:absolute;transform:translate(-50%,12px);font-size:11px;padding:4px 7px;max-width:135px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:#ffffffea;border-color:#b5c9d2;pointer-events:auto;box-shadow:0 2px 7px #103c4820}
.model-label.selected{background:#fff0d5;border-color:#d9962b;color:#71480b;z-index:3}
.scene-top{font-size:13px;left:18px;right:18px}.live{font-size:11px}.view-buttons{left:18px}.scene-bottom{bottom:132px;left:18px;right:18px;flex-wrap:wrap;font-size:11px}.legend .chosen{background:#f1a73d}
.toolbar{left:14px;right:14px;bottom:14px;gap:9px;padding:12px;font-size:13px;min-height:98px}.toolbar button{font-size:12px;padding:8px}.toolbar .check{font-size:12px}#collapse{white-space:nowrap}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:20px 0 10px;font-size:14px}.section-heading span{font-size:12px;color:#67808e}
#stageList{display:flex;gap:6px;flex-wrap:wrap}#stageList button{font-size:12px;padding:7px 9px;border-radius:5px}#stageList button.active{background:#103c48;color:white;border-color:#103c48}
.phase-card{padding-top:12px}h3{font-size:17px;margin:10px 0}#phaseAction{font-size:15px;line-height:1.85;margin:10px 0}#phaseParts{font-size:12px;line-height:1.8;color:#087a6b}#phaseParts:empty{display:none}
.checkpoint{margin:12px 0;padding:12px}.pagination{margin-top:14px}.pagination button{font-size:12px;padding:10px 6px}
#compositionSummary{font-size:13px;line-height:1.8;color:#617886}#componentList{display:grid;gap:5px}.component-row{display:grid;grid-template-columns:26px 1fr 30px;align-items:center;gap:8px;text-align:left;padding:9px;font-size:13px}.component-row .number{color:#71929b;font-size:12px}.component-row small{font-size:11px;color:#637d88}.component-row.selected{background:#fff3df;border-color:#dbab5e}
#selectedPart{background:#fff6e8;border:1px solid #ebd1a8;border-radius:8px;padding:13px;margin-top:18px;font-size:14px}#selectedFile{display:block;overflow-wrap:anywhere;font-size:11px;margin-top:8px;color:#7b6950}#selectedAdvice{font-size:13px;line-height:1.8}#downloadPart{font-size:12px}
.gap-note{font-size:12px;line-height:1.8;color:#825b28;background:#fff5e7;padding:12px;border-left:3px solid #dca75e}.reference{margin:20px 0}.reference>a{display:block;margin:12px 0}#referenceImages{display:flex;gap:8px}#referenceImages a{width:48%}#referenceImages img{width:100%;border:1px solid #dbe3e9}
#overviewDetail p{font-size:15px;line-height:1.9}
@media(min-width:1450px){main{grid-template-columns:255px minmax(420px,1fr) 430px}}
@media(max-width:1120px){main{grid-template-columns:205px 1fr;height:auto}.workspace{min-height:640px}.steps{max-height:640px}.instructions{grid-column:1/-1;max-height:none;overflow:visible}#moduleDetail{max-width:900px}#componentList{grid-template-columns:repeat(2,minmax(0,1fr))}.scene-bottom{bottom:132px}}
@media(max-width:650px){main{display:flex;height:auto;min-height:0}.steps{padding:16px;overflow:visible;max-height:none}.steps h1{font-size:20px}.steps .intro{display:block;margin:7px 0 0}.steps nav{overflow-x:auto}.steps nav button{padding:7px}.steps nav button small{display:none}.workspace{min-height:590px}#viewport,#modelLabels{bottom:145px}.model-label{max-width:82px;font-size:10px;padding:3px 5px}.scene-top{left:14px;right:14px;font-size:12px}.live{display:none}.toolbar{min-height:124px;gap:8px}.scene-bottom{bottom:148px}.instructions{padding:24px 18px}#componentList{grid-template-columns:1fr}.edition{display:none}.instructions h2{font-size:24px}}
.assembly-entry{display:block;width:100%;background:#123f4a;color:#fff;border-color:#123f4a;text-align:left;line-height:1.7;margin:12px 0 18px;font-size:13px}.assembly-entry:hover{background:#1b5964;color:#fff}.assembly-intro{background:#edf7f4;padding:13px;font-size:14px;line-height:1.85;border-left:3px solid #20aa8e;margin:14px 0}#assemblyStages{display:grid;grid-template-columns:1fr 1fr;gap:6px}#assemblyStages button{text-align:left;font-size:12px;padding:8px}#assemblyStages button.active{background:#123f4a;color:white;border-color:#123f4a}.connection{font-weight:650;color:#087a6b;background:#edf5f5;padding:10px;border-radius:5px;font-size:14px!important}#assemblyAction{font-size:15px;line-height:1.9}#assemblyProgress{font-size:13px;color:#587380}#assemblyDock{background:#13856f;color:white;border-color:#13856f;width:100%}.assembly-links{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.assembly-links button{font-size:12px}.steps .assembly-entry{margin-top:4px}@media(max-width:650px){.steps .assembly-entry{padding:7px 10px;margin:12px 0 0}.steps nav{margin-top:10px}}
.legend i:nth-of-type(2){background:#aebcc6}.legend i.chosen{background:#f1a73d}
.servo-label{background:#163f59;color:#fff;border-color:#c9e6f0;font-size:12px;font-weight:750;min-width:50px;max-width:70px;z-index:2}.servo-label.selected{background:#f1a73d;color:#17354a;border-color:#d5942f}.servo-table{width:100%;border-collapse:collapse;font-size:14px;margin:18px 0}.servo-table td,.servo-table th{text-align:left;border-bottom:1px solid #dde6eb;padding:9px 7px}.servo-table th{color:#617b89;font-size:12px}.servo-table button{font-weight:700;color:#087a6b;white-space:nowrap}#allServoIds{background:#123f4a;color:white;width:100%}header{gap:12px}header .brand{margin-right:auto}@media(max-width:650px){header{display:grid;grid-template-columns:1fr auto;height:100px;padding:9px 14px;gap:4px}.brand{grid-row:1 / 3}#servoButton{grid-column:2;grid-row:1;font-size:12px;padding:7px}#partsButton{grid-column:2;grid-row:2;font-size:12px;padding:7px}.servo-table{font-size:12px}.servo-table td,.servo-table th{padding:8px 4px}.servo-table button{padding:7px;font-size:12px}.servo-label{font-size:11px;max-width:60px;min-width:44px}.toolbar{min-height:124px}}

.servo-label{transform:translate(-50%,-50%);z-index:2}.servo-leader{position:absolute;height:1px;background:#38768b;transform-origin:0 50%;pointer-events:none}

#inventoryDialog{width:min(960px,94vw)}.inventory-scroll{overflow-x:auto}.inventory-module{border:1px solid #dbe3e9;border-radius:8px;padding:10px 14px;margin:8px 0}.inventory-module summary{font-weight:650}.inventory-module>div{display:grid;gap:6px;margin-top:10px}.inventory-module button{text-align:left;font-size:13px;line-height:1.6}#inventorySummary{padding:12px;background:#edf7f4;color:#123f4a;font-weight:650}#inventoryButton{background:#123f4a;color:#fff}@media(max-width:1250px){header .edition{display:none}}@media(max-width:650px){header{height:132px}.brand{grid-row:1 / 4}#inventoryButton{grid-column:2;grid-row:1;font-size:12px;padding:7px}#servoButton{grid-row:2}#partsButton{grid-row:3}#inventoryDialog{padding:16px}.inventory-module{padding:8px}.inventory-module button{font-size:12px}}

#assemblyEntry,#startAssembly{background:#087e69;border-color:#087e69;color:#fff;font-weight:750;font-size:16px;padding:15px;box-shadow:0 5px 16px #087e6928}.home-view{width:100%;margin-bottom:12px}.home-card{padding:20px;background:#edf7f4;border:1px solid #c9e5da;border-radius:12px;margin-top:22px}.home-card h3{font-size:22px;line-height:1.5}.home-card p{font-size:14px;line-height:1.9;color:#527267}#startAssembly{width:100%;text-align:left}#startAssembly small{display:block;font-size:12px;font-weight:400;margin-top:7px}nav button[data-module="0"]{margin-top:16px;border-top:1px solid #b9d1d7}@media(max-width:650px){.steps #assemblyEntry{padding:12px;font-size:15px}.home-view{margin:8px 0 0;padding:7px;font-size:12px}nav button[data-module="0"]{margin-top:0;margin-left:12px}}