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circle{fill:var(--accent);stroke:var(--accent)}.mount-wire{fill:none;stroke:var(--accent);stroke-width:3;cursor:pointer;pointer-events:stroke}.mount-wire:hover{stroke-width:7}.mount-wire.wrong{stroke:var(--error)}.feature-help{max-width:1200px;margin:35px auto 50px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;scroll-margin-top:90px}.feature-help summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:13px;font-weight:500;list-style:none;gap:20px}.feature-help summary::-webkit-details-marker{display:none}.feature-help summary>span{font-size:21px;color:var(--accent);transition:transform .2s}.feature-help[open] summary>span{transform:rotate(90deg)}.feature-help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;margin-top:30px}.feature-help-grid article{border-left:1px solid var(--line);padding-left:18px}.feature-help-grid h4{font-size:13px;font-weight:550;margin-bottom:10px;line-height:1.6}.feature-help-grid p{font-size:11px;line-height:1.9;color:var(--muted)}.scene-hotspot.builder-part{cursor:grab;touch-action:none}.scene-hotspot.builder-part:active{cursor:grabbing}@media(max-width:1250px){.feature-help{margin-inline:30px}}@media(max-width:800px){.assembly-card{padding:20px}.experience-steps{gap:8px}.experience-steps li{padding:12px;gap:9px}.experience-steps small{font-size:9px}.feature-help-grid{grid-template-columns:1fr 1fr}.feature-help{margin-inline:20px}}@media(max-width:600px){.experience-steps li{display:block}.experience-steps li>b{width:26px;height:26px;margin-bottom:10px;font-size:13px}.experience-steps strong{font-size:11px}.experience-steps small{font-size:9px}.assembly-card{grid-template-columns:1fr;gap:16px;padding:18px}.assembly-actions{grid-template-columns:1fr}.assembly-intro h3{font-size:24px}.assembly-intro p{font-size:11px}.assembly-player span{margin-left:0;flex-basis:100%}.feature-help{margin-inline:16px}.feature-help summary{font-size:12px;line-height:1.8}.feature-help-grid{grid-template-columns:1fr;gap:22px}.mounting-plan{min-height:260px}.mounting-plan svg{height:100%;min-height:260px}}@media(prefers-reduced-motion:reduce){.assembly-playback progress::-webkit-progress-value,.feature-help summary>span{transition:none}}.assembly-card{scroll-margin-top:0}.assembly-card.running,.assembly-card.completed{display:block;padding:16px 22px}.assembly-card.running .assembly-intro,.assembly-card.completed .assembly-intro,.assembly-card.running .assembly-actions,.assembly-card.completed .assembly-actions{display:none}.assembly-card.running .assembly-playback,.assembly-card.completed .assembly-playback{border:0;padding:0}.assembly-card.completed{border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}.mount-mobile-ports{display:none}@media(max-width:600px){.mounting-plan{overflow:auto;min-height:0;touch-action:pan-y}.mounting-plan svg{height:220px;min-height:220px}.mount-mobile-ports{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;padding:12px}.mount-mobile-ports button{display:flex;align-items:center;gap:9px;text-align:left;border:1px solid var(--line);border-radius:10px;padding:9px;background:var(--surface);color:var(--text);font-size:9px;min-height:42px}.mount-mobile-ports button>b{color:var(--accent);font:11px monospace;flex-shrink:0}.mount-mobile-ports button.selected{border-color:var(--accent);background:var(--surface2)}}@media(min-width:801px){.builder-layout:has(.assembly-card.running) .builder-stage,.builder-layout:has(.assembly-card.completed) .builder-stage{height:400px}}