.sl-gift-tab {
  display:none; position:fixed; left:0; top:28%; z-index:2147483646;
  transform:translateY(-50%); writing-mode:vertical-rl; text-orientation:mixed;
  background:#f2d27b; color:#1f1f1f; padding:18px 10px;
  border-radius:0 16px 16px 0; font-size:14px; font-weight:600;
  letter-spacing:0.06em; cursor:pointer; user-select:none; line-height:1.4;
  white-space:nowrap; border:1px solid rgba(0,0,0,0.12);
  box-shadow:0 2px 12px rgba(0,0,0,0.10); opacity:0;
  transition:opacity 320ms ease; pointer-events:none;
}
.sl-gift-tab.is-visible { opacity:1; pointer-events:auto; }
.sl-gift-tab:hover { background:#e8c46a; }
@media (max-width:749px) {
  .sl-gift-tab { left:auto; right:0; top:auto; bottom:120px;
    transform:none; border-radius:16px 0 0 16px; padding:12px 8px; font-size:11px; }
}