button {
  position: relative;
  display: inline-block;
  box-sizing: border-box;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  width: 100%;
  border: none;
  border-radius: 1rem;
  font-weight: bold;
}

/* 主题 */
/* primary */
button[type='primary'] {
  background-color: #427cf5;
  color: #fff;
}
button[type='primary']:active {
  background-color: #3263cb;
}
/* info */
button[type='info'] {
  background: #fff;
  border: 0.02rem solid #b9c5d4;
  color: #223752;
}
button[type='info']:active {
  background-color: #b9c5d4;
}

/* 尺寸 */
/* large */
button[size='large'] {
  height: 1.2rem;
  font-size: 0.5rem;
}
/* normal */
button[size='normal'] {
  height: 1.1rem;
  font-size: 0.48rem;
}
/* loading */
button[loading]::before {
  content: '';
  width: 0.5rem;
  height: 0.5rem;
  position: absolute;
  /* left: 50%;
  top: 50%; */
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 6px solid rgba(255, 255, 255, 1);
  border-top: 6px solid #3263cb;
  z-index: 100000;
  user-select: none;
  animation: loaing 2s linear infinite; /* 应用动画 */
}
button[loading]::after {
  content: '';
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.7);
  position: absolute;
  z-index: 10000;
  user-select: none;
}

@keyframes loaing {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}