.steam-battle-gate{position:fixed;inset:0;z-index:2147483646;pointer-events:all;overflow:hidden;isolation:isolate;touch-action:none}
.steam-gate-leaf{position:absolute;top:0;bottom:0;width:calc(50% + 1px);background-color:#05080c;background-image:url('ui/battle-steam-gate-v1.webp');background-repeat:no-repeat;background-size:200% 100%;will-change:transform}
.steam-gate-leaf.left{left:0;background-position:left center;transform:translateX(-101%)}
.steam-gate-leaf.right{right:0;background-position:right center;transform:translateX(101%)}