:root{--bg: #ffffff;--card: #ffffff;--text: #111111;--text-sub: #666666;--text-light: #999999;--line: #e0e0e0;--line-soft: #f0f0f0;--sidebar: #f9f9f9;--accent: #ff4400;--danger: #d9645c;--panel-h: 40vh}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app,#app *{-webkit-user-select:none;user-select:none}html,body{margin:0;height:100%;overflow:hidden;background:#f3f3f5;color:var(--text);font:400 14px/1.45 -apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}.app{position:relative;width:100%;max-width:430px;height:100vh;height:100dvh;margin:0 auto;display:flex;flex-direction:column;overflow:hidden;background:#fff;box-shadow:0 0 0 1px #0000000a,0 18px 60px #0f172a14}.stage{position:relative;flex:1;min-height:0;height:calc(100vh - var(--panel-h));background:#fff;overflow:visible;touch-action:none}#viewer,.bracelet-preview{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;touch-action:none;transform-origin:center center;will-change:transform;overflow:hidden}.rope-circle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);border-radius:50%;pointer-events:none;box-sizing:content-box;z-index:0}.bracelet-ring{position:relative;z-index:1;width:100%;height:100%;display:flex;align-items:center;justify-content:center}.bead-item{position:absolute;top:50%;left:50%;display:flex;align-items:center;justify-content:center;cursor:grab;overflow:hidden;border:none;box-shadow:var(--bead-shadow, 6px 6px 14px rgba(0,0,0,.3));touch-action:none;transform-origin:center center;will-change:transform;z-index:1;--bead-x: 0px;--bead-y: 0px;--bead-rotation: 0deg;--entry-x: 0px;--entry-y: 400px;--entry-duration: .95s;transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation));transition:transform .3s cubic-bezier(.34,1.56,.64,1),box-shadow .3s ease,opacity .2s ease}.bead-item:hover{box-shadow:var(--bead-shadow-hover, 8px 8px 18px rgba(0,0,0,.35));z-index:10;transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(1.05)}.bead-item.bead-accessory:hover{box-shadow:none;filter:drop-shadow(var(--bead-shadow-hover, 8px 8px 18px rgba(0,0,0,.35)))}.bead-item:active{cursor:grabbing}.bead-item.dragging{cursor:grabbing;transition:none!important;animation:none!important;z-index:200!important}.bead-item.removing{opacity:0;transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(.1)!important;box-shadow:none;transition:all .2s cubic-bezier(.68,-.55,.265,1.55);pointer-events:none}.bead-item.bead-adding{animation:beadAdd var(--entry-duration, .95s) cubic-bezier(.18,.78,.24,1);z-index:100}.bead-item.bead-fly-in{animation:beadFlyIn var(--entry-duration, .95s) cubic-bezier(.18,.78,.24,1)!important;transition:none!important;z-index:100}.bead-item img.bead-entry-trail{position:absolute;inset:0;z-index:0;pointer-events:none;animation:entryTrail var(--entry-duration, .95s) ease-out both}@keyframes beadAdd{0%{transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(0);opacity:0}50%{transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(1.14);opacity:1}to{transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(1);opacity:1}}@keyframes beadFlyIn{0%{opacity:0;transform:translate(-50%,-50%) translate(var(--entry-x, 0px),var(--entry-y, 400px)) rotate(calc(var(--bead-rotation) - 140deg)) scale(.5)}18%{opacity:1}68%{transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(calc(var(--bead-rotation) - 8deg)) scale(1.08)}86%{transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(1.025)}to{opacity:1;transform:translate(-50%,-50%) translate(var(--bead-x),var(--bead-y)) rotate(var(--bead-rotation)) scale(1)}}@keyframes entryTrail{0%,72%,to{opacity:0;transform:translate(0) scale(1)}22%{opacity:.25;transform:translate(-8px,12px) scale(.94)}55%{opacity:.12;transform:translate(-3px,5px) scale(.98)}}@keyframes materialRipple{0%{transform:translate(-50%,-50%) scale(0);opacity:.85}to{transform:translate(-50%,-50%) scale(1);opacity:0}}@keyframes ringPulse{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}.bracelet-ring.has-beads.pulse{animation:ringPulse .55s ease}@media(prefers-reduced-motion:reduce){.bead-item,.bead-entry-trail{animation:none!important}.bead-entry-trail{display:none}}.bead-item.bead-accessory{background:transparent;box-shadow:none;overflow:visible;filter:drop-shadow(var(--bead-shadow, 6px 6px 14px 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var(--panel-h);height:var(--materials-panel-height);overflow:hidden;width:100%;display:flex;flex-direction:column;background:#fff;border-top:1px solid #e0e0e0;position:relative;z-index:120;border-radius:24px 24px 0 0;box-shadow:0 -1px #0f172a0a;flex:none}.panel:before{content:"";position:absolute;left:20px;right:20px;top:0;height:12px;border-radius:20px 20px 0 0;box-shadow:0 -10px 24px #0f172a14;pointer-events:none}.panel-handle{height:18px;display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none}.panel-handle i{width:36px;height:4px;border-radius:99px;background:#d4d4d8}.panel.expanded{--materials-panel-height: 72vh}.dock{position:absolute;left:0;right:0;bottom:calc(var(--panel-h) + 10px);height:32px;z-index:300;pointer-events:none}.dock-btn{pointer-events:auto;position:absolute;height:32px;border-radius:999px;border:1px solid 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#00000029;white-space:nowrap;transform:translate(-50%,-100%)}.bead-chip[hidden]{display:none}.bead-chip b{max-width:132px;overflow:hidden;text-overflow:ellipsis;font-size:12px;font-weight:500;color:#555}.bead-chip button{border:0;padding:5px 12px;border-radius:999px;background:#111;color:#fff;font-size:12px;font-weight:600;cursor:pointer}.toast{position:fixed;left:50%;bottom:46%;z-index:2000;padding:9px 16px;border-radius:10px;background:#000000d1;color:#fff;font-size:13px;opacity:0;pointer-events:none;transform:translate(-50%,6px);transition:opacity .2s,transform .2s}.toast.on{opacity:1;transform:translate(-50%)}