.install-help{max-width:330px;margin-top:14px;border-top:1px solid var(--line);padding-top:5px}
.install-help>summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;cursor:pointer;font-weight:600;list-style:none}
.install-help>summary::-webkit-details-marker{display:none}
.install-help>summary span{font-size:19px;transition:transform .15s}
.install-help[open]>summary span{transform:rotate(90deg)}
.install-help-body{font-size:13px;line-height:1.5;padding:0 0 10px}
.install-help-body p{margin:8px 0 12px}
.install-help-body strong{color:var(--ink)}
.install-help .btn{min-height:44px;margin:2px 0 5px}
.install-help [hidden],.install-help[hidden]{display:none!important}
.install-help-note{font-size:12px}
.install-status:empty{display:none}
@media(max-width:760px){
  body{padding-bottom:env(safe-area-inset-bottom,0px)}
  header{padding-top:calc(17px + env(safe-area-inset-top,0px));padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
  main{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
  .is-standalone .app-nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--cream)}
  .is-standalone .shell{overflow:clip}
  .install-help{max-width:none}
}
@media print{.install-help{display:none}}