/* ==========================================================================
   css/whatsappButton.css   顾客点餐页悬浮 WhatsApp 按钮
   独立新文件，不改动既有样式。位置放在语音点餐按钮(.voice-fab)正上方，
   两个悬浮按钮不重叠、都点得到。
   ========================================================================== */
.wa-fab {
  position: fixed;
  right: 16px;
  /* 同 voiceOrder.css 里 .voice-fab 的注释：要跟着 safe-area-inset-bottom
     一起往上让，否则在 iPhone 底部圆点机型上会往下盖住结算按钮。 */
  bottom: calc(156px + env(safe-area-inset-bottom));
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25d366, #1da851);
  color: #fff;
  font-size: 26px;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 700;
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
}
.wa-fab img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}