.ht-sf-block{
  margin-top:24px;
  padding:16px;
  border:1px solid rgba(0,0,0,.08);
  border-radius:12px;
}
.ht-sf-text{
  font-weight:600;
  margin-bottom:12px;
}
.ht-sf-buttons{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.ht-sf-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  text-decoration:none;
  border:1px solid rgba(0,0,0,.12);
  background:rgba(0,0,0,.04);
  color:inherit;
  transition:transform .08s ease, background .15s ease, border-color .15s ease;
}
.ht-sf-btn:hover{
  transform:translateY(-1px);
  background:rgba(0,0,0,.07);
  border-color:rgba(0,0,0,.2);
}
.ht-sf-icon{ display:block; }
.ht-sf-sr{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}