/* ===== 模式二：左下角工具箱（点开向上弹出竖排按钮，位于上半屏左下角） ===== */
.ed-toolbox{
  position:absolute;left:14px;bottom:12px;z-index:6;
  display:none;flex-direction:column;align-items:flex-start;gap:8px;
}
.tb-menu{display:none;flex-direction:column;gap:6px;width:96px;}
.ed-toolbox.open .tb-menu{display:flex;}
.tb-menu button,.tb-btn{
  padding:7px 2px;border-radius:999px;font-size:11px;letter-spacing:.05em;text-align:center;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid var(--line-2);color:var(--ink-2);
  box-shadow:0 4px 14px -8px rgba(0,0,0,.35);
  transition:transform .18s;
}
.tb-btn{width:96px;display:flex;align-items:center;justify-content:center;gap:5px;font-size:11.5px;}
.tb-btn svg{width:14px;height:14px;stroke:var(--ink-2);stroke-width:1.9;}
.tb-menu button:active,.tb-btn:active{transform:translateY(1px);}
.tb-menu .ghost{color:#cf6a44;border-color:rgba(207,106,68,.3);}