/* ===== 悬浮咨询按钮样式 ===== */
.chat-button {
  position: fixed;
  bottom: 80px;
  right: 24px;
  width: 52px;
  height: 52px;
  background: #5e3cbd;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1), 0 4px 16px rgba(94,60,189,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 99998;
  transition: all 0.2s;
  border: none;
  cursor: grab;
  text-decoration: none;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.chat-button:active { cursor: grabbing; }
.chat-button:hover { transform: scale(1.08); }
.chat-button svg { width: 22px; height: 22px; }