* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.app-container {
  width: 100%;
  min-height: 100vh;
  background: #f5f5f5;
}

.app-title {
  text-align: center;
  padding: 20px 0;
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.token-tip {
  position: fixed;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 14px;
  border-radius: 4px;
  z-index: 9999;
}