.bt-stage{--tc:196 255 230;--amb:0;isolation:isolate;background:var(--ink-950);touch-action:manipulation;-webkit-user-select:none;user-select:none;outline:none;height:clamp(600px,78vh,820px);position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px #ffffff0d,0 40px 80px -30px #000000e6}.bt-stage:focus-visible{box-shadow:inset 0 0 0 2px var(--focus)}.bt-table{z-index:-3;pointer-events:none;background:radial-gradient(48% 42% at 50% 40%,#fff6e21a,#0000 70%),radial-gradient(120% 90% at 50% 45%,#0000 45%,#000000b8 100%),url(/assets/felt-DKMfXg6P.png) 0 0/512px 512px;position:absolute;inset:0}.bt-table:after{content:"";background:radial-gradient(ellipse 60% 50% at 50% 42%, rgb(var(--tc) / .22), transparent 70%);opacity:var(--amb);transition:opacity .9s;position:absolute;inset:0}.bt-beams{z-index:-2;pointer-events:none;height:95%;opacity:calc(var(--amb) * .9);mix-blend-mode:screen;transition:opacity 1.2s;position:absolute;inset:-10% 0 auto;-webkit-mask-image:linear-gradient(#000 0%,#0009 45%,#0000 85%);mask-image:linear-gradient(#000 0%,#0009 45%,#0000 85%)}.bt-beams i{transform-origin:50% 0;background:linear-gradient(90deg, transparent, rgb(var(--tc) / .16) 40%, #ffffff1a 50%, rgb(var(--tc) / .16) 60%, transparent);filter:blur(14px);width:16%;height:100%;animation:9s ease-in-out infinite alternate bt-beam;position:absolute;top:0;left:42%}.bt-beams i:first-child{animation-delay:-2s;transform:rotate(16deg)}.bt-beams i:nth-child(2){width:11%;animation-delay:-5s;left:45%;transform:rotate(-3deg)}.bt-beams i:nth-child(3){animation-delay:-1s;transform:rotate(-18deg)}.bt-beams i:nth-child(4){width:7%;animation-delay:-7s;left:47%;transform:rotate(7deg)}@keyframes bt-beam{0%{translate:-14px}to{translate:14px}}.bt-bloom{aspect-ratio:1;z-index:5;pointer-events:none;background:radial-gradient(circle, #ffffffe6, rgb(var(--tc) / .55) 12%, rgb(var(--tc) / .12) 32%, transparent 55%);mix-blend-mode:screen;opacity:0;border-radius:50%;width:140%;position:absolute;top:42%;left:50%;translate:-50% -50%;scale:.4}.bt-bloom[data-go]{animation:1.6s cubic-bezier(.12,.7,.25,1) bt-bloom}@keyframes bt-bloom{0%{opacity:0;scale:.3}10%{opacity:1}to{opacity:0;scale:1.15}}.bt-world{z-index:1;width:0;height:0;position:absolute;top:50%;left:50%}.bt-body .zc-card{touch-action:none}.bt-body[data-inert] .zc-card{pointer-events:none;cursor:default}.bt-veil{z-index:350;opacity:0;pointer-events:none;background:#0406059e;transition:opacity .5s;position:absolute}.bt-veil[data-on]{opacity:1;pointer-events:auto}.bt-hud{z-index:9;justify-content:space-between;align-items:center;gap:14px;height:56px;display:flex;position:absolute;top:6px;left:20px;right:8px}@media (width>=768px){.bt-hud{height:72px;top:0;left:40px;right:28px}}.bt-icon{width:44px;height:44px;color:var(--text-soft);cursor:pointer;transition:color var(--duration-ui) var(--easing-ui), transform var(--duration-press) var(--easing-press);background:0 0;border:0;outline:none;flex:none;place-items:center;padding:0;display:grid}.bt-icon:hover{color:var(--text)}.bt-icon:active{transform:scale(.94)}.bt-icon:focus-visible{box-shadow:inset 0 0 0 2px var(--focus)}.bt-icon svg{width:22px;height:22px}.bt-pips{gap:9px;display:flex}.bt-pips i{border:1.2px solid #5a5070;width:9px;height:9px;transition:background .5s,border-color .5s,box-shadow .5s;transform:rotate(45deg)}.bt-pips i[data-on]{background:var(--pc);border-color:var(--pc);box-shadow:0 0 10px var(--pc)}.bt-caption{text-align:center;pointer-events:none;z-index:2;font-size:13px;line-height:1.35;transition:transform .7s cubic-bezier(.2,.9,.3,1),opacity .7s;position:absolute;top:0;left:0}@media (width<=760px){.bt-stage{height:clamp(560px,82vh,720px)}}@media (prefers-reduced-motion:reduce){.bt-beams i{animation:none}}.bt-stage[data-overlay]{height:auto;box-shadow:none;background:0 0}.bt-stage[data-overlay] .bt-table{-webkit-mask-image:radial-gradient(62% 58% at 50% 46%,#000 35%,#0000 100%);mask-image:radial-gradient(62% 58% at 50% 46%,#000 35%,#0000 100%)}