:root{--text:#16181d;--muted:#6b7280;--accent:#2159e2;--solid:#fff;--card:#ffffff80;--hair:#141c3017;--shadow:0 10px 34px #141e371f;--bg:radial-gradient(118% 88% at 50% 32%, #fff 0%, #eff3f9 46%, #dde4ef 100%)}@media (prefers-color-scheme:dark){:root{--text:#eef1f5;--muted:#9aa2ad;--accent:#5b8bff;--solid:#23272f;--card:#1c202875;--hair:#ffffff1f;--shadow:0 12px 36px #00000080;--bg:radial-gradient(118% 88% at 50% 30%, #262c36 0%, #171b21 55%, #0e1116 100%)}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{height:100%;color:var(--text);background:var(--bg);margin:0;font-family:Inter,-apple-system,Segoe UI,Roboto,system-ui,sans-serif;overflow:hidden}#canvas{opacity:0;width:100%;height:100%;transition:opacity 1s;display:block;position:fixed;inset:0}body.ready #canvas{opacity:1}.topbar{z-index:6;pointer-events:none;padding:18px 20px;padding-top:max(18px, env(safe-area-inset-top));position:fixed;top:0;left:0;right:0}.brand{letter-spacing:3.5px;opacity:.92;font-size:14px;font-weight:600}.brand b{color:var(--accent);font-weight:700}.rail{z-index:6;pointer-events:none;opacity:0;flex-direction:column;gap:12px;transition:opacity .6s .2s,transform .6s cubic-bezier(.16,.8,.24,1) .2s;display:flex;position:fixed;top:50%;right:16px;transform:translateY(-50%)translate(20px)}body.ready .rail{opacity:1;transform:translateY(-50%)translate(0)}.rail-btn{pointer-events:auto;background:var(--card);border:1px solid var(--hair);width:56px;height:56px;box-shadow:var(--shadow);color:var(--text);cursor:pointer;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-radius:16px;place-items:center;transition:background .2s,color .2s,transform .15s,box-shadow .2s;display:none}.rail-btn.show{display:grid}.rail-btn:active{transform:scale(.93)}.rail-btn.active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 8px 24px #2159e266}.rail-btn svg{width:auto;height:27px;display:block}.bottombar{z-index:6;left:14px;right:14px;bottom:max(18px, calc(env(safe-area-inset-bottom) + 12px));background:var(--card);border:1px solid var(--hair);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(20px)saturate(160%);backdrop-filter:blur(20px)saturate(160%);opacity:0;border-radius:24px;justify-content:space-around;align-items:stretch;gap:6px;padding:8px 6px;transition:opacity .7s .25s,transform .7s cubic-bezier(.16,.8,.24,1) .25s;display:flex;position:fixed;transform:translateY(16px)}body.ready .bottombar{opacity:1;transform:translateY(0)}.bar-btn{pointer-events:auto;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:16px;flex-direction:column;flex:1;align-items:center;gap:4px;padding:9px 6px 7px;transition:transform .15s,color .15s,background .15s;display:flex}.bar-btn:active{transform:scale(.95)}.bar-btn.active{color:var(--accent);background:#2159e214}.bar-btn svg{width:auto;height:22px;display:block}.bar-btn .lbl{letter-spacing:.2px;color:var(--muted);font-size:11px;font-weight:600}.bar-btn.active .lbl{color:var(--accent)}.loader{z-index:7;pointer-events:none;flex-direction:column;justify-content:center;align-items:center;gap:14px;display:flex;position:fixed;inset:0}body.ready .loader,body.errored .loader{display:none}.ring{background:conic-gradient(var(--accent) calc(var(--p,0) * 1%), var(--hair) 0);border-radius:50%;width:78px;height:78px;transition:background .2s linear;position:relative}.ring:after{content:"";background:var(--solid);border-radius:50%;position:absolute;inset:7px}.pct{z-index:1;color:var(--text);place-items:center;font-size:16px;font-weight:700;display:grid;position:absolute;inset:0}#status{text-align:center;color:var(--muted);font-size:12.5px}#mvWrap{z-index:20;background:var(--bg);display:none;position:fixed;inset:0}#mvWrap.preloading{opacity:0;pointer-events:none}#mvWrap model-viewer{--poster-color:transparent;width:100%;height:100%}.mv-spin{border:3px solid var(--hair);border-top-color:var(--accent);z-index:21;border-radius:50%;width:42px;height:42px;margin:-21px 0 0 -21px;animation:.8s linear infinite mvspin;display:none;position:absolute;top:50%;left:50%}@keyframes mvspin{to{transform:rotate(360deg)}}#arLoad{z-index:22;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0000008c;flex-direction:column;justify-content:center;align-items:center;gap:16px;display:none;position:fixed;inset:0}#arLoad .mv-spin{margin:0;position:static}.arLoad-txt{color:#fff;font-size:14px;font-weight:600}body.xr-active .topbar,body.xr-active .bottombar,body.xr-active .loader,body.xr-active #status{display:none!important}#xrClose{z-index:30;top:max(16px, env(safe-area-inset-top));color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#00000080;border:none;border-radius:50%;place-items:center;width:46px;height:46px;font-size:22px;line-height:1;display:none;position:fixed;right:16px}body.xr-active #xrClose{display:grid}.mv-ar-btn{background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:26px;padding:13px 24px;font-size:15px;font-weight:600;position:absolute;bottom:26px;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #2159e273}#mvClose{z-index:21;top:max(16px, env(safe-area-inset-top));color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0000008c;border:none;border-radius:50%;place-items:center;width:46px;height:46px;font-size:20px;line-height:1;display:grid;position:fixed;right:16px}.err{z-index:8;text-align:center;justify-content:center;align-items:center;padding:24px;display:none;position:fixed;inset:0}body.errored .err{display:flex}.err p{max-width:420px;color:var(--muted);font-size:14px;line-height:1.55}