/* ============================================================
   右侧浮动工具栏（前台 + 用户中心共用）
   ============================================================ */
.side-toolbar{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:999;display:flex;flex-direction:column;gap:6px;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid #eef1f6;border-radius:16px;box-shadow:0 16px 44px rgba(16,24,40,.15);padding:6px}
.st-item{position:relative;width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#5b6472;font-size:20px;transition:all .2s;text-decoration:none;cursor:pointer;background:transparent;box-sizing:border-box}
.st-item:hover{background:linear-gradient(135deg,#ff6a5e,#e0433c);color:#fff;box-shadow:0 8px 18px rgba(224,67,60,.32);transform:translateX(-2px)}
.st-item .st-tip{position:absolute;right:60px;top:50%;transform:translateY(-50%) translateX(6px);background:#1f2937;color:#fff;font-size:12px;line-height:1.4;padding:7px 13px;border-radius:9px;white-space:nowrap;opacity:0;pointer-events:none;transition:all .2s;box-shadow:0 6px 14px rgba(0,0,0,.2);max-width:230px}
.st-item .st-tip small{display:block;opacity:.85;font-size:11px;margin-top:1px}
.st-item .st-tip::after{content:'';position:absolute;right:-6px;top:50%;transform:translateY(-50%);border:6px solid transparent;border-left-color:#1f2937}
.st-item:hover .st-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.st-item.st-wx i{color:#07c160}
.st-item.st-wx:hover i{color:#fff}
.st-item.st-top{display:none;background:linear-gradient(135deg,#ff6a5e,#e0433c);color:#fff;box-shadow:0 8px 18px rgba(224,67,60,.32)}
.st-item.st-top.show{display:flex}
.st-item.st-top:hover{background:linear-gradient(135deg,#ff7a6e,#d23a33)}
@media(max-width:768px){
  .side-toolbar{right:8px;gap:5px;padding:5px;border-radius:13px}
  .st-item{width:40px;height:40px;border-radius:10px;font-size:16px}
  .st-item .st-tip{display:none}
}