html,
body {
  height: 100%;	
}

body {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
	background-color: var(--pc-base-color-2);
}

.form-signin {
  width: 100%;
  max-width: 420px;
  padding: 30px;
  margin: auto;
	background-color: white;
	box-shadow: 0 6px 68px -6px rgba(0,0,0,.09);
}
@media (min-width:1200px){
	.form-signin {
		margin-left: 380px;
	}
}

.logo{
	font-size: 52px;
	line-height: 52px;
	font-weight: bold;
	color: var(--pc-base-color-3);
	font-family: SourceHanSerifCN-Bold-onlyNum;
	white-space: nowrap;
	text-decoration: none;
}

.form-label-group {
  position: relative;
  margin-bottom: 1rem;
}

.form-label-group > input,
.form-label-group > label {
  height: 3.125rem;
  padding: .75rem;
}

.form-label-group > label {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  margin-bottom: 0; /* Override default `<label>` margin */
  line-height: 1.5;
  color: #495057;
  pointer-events: none;
  cursor: text; /* Match the input under the label */
  border: 1px solid transparent;
  border-radius: .25rem;
  transition: all .1s ease-in-out;
}

.form-label-group input::-webkit-input-placeholder {
  color: transparent;
}

.form-label-group input:-ms-input-placeholder {
  color: transparent;
}

.form-label-group input::-ms-input-placeholder {
  color: transparent;
}

.form-label-group input::-moz-placeholder {
  color: transparent;
}

.form-label-group input::placeholder {
  color: transparent;
}

.form-label-group input:not(:placeholder-shown) {
  padding-top: 1.25rem;
  padding-bottom: .25rem;
}

.form-label-group input:not(:placeholder-shown) ~ label {
  padding-top: .25rem;
  padding-bottom: .25rem;
  font-size: 12px;
  color: #777;
}


.error,
input.error:focus,
input.error:active{
	box-shadow: 0 0 0 0.2rem rgba(225, 83, 97, 0.5);
	border: 1px solid rgba(255, 0, 0, 0.8);
}
/* Fallback for Edge
-------------------------------------------------- */
@supports (-ms-ime-align: auto) {
  .form-label-group > label {
    display: none;
  }
  .form-label-group input::-ms-input-placeholder {
    color: #777;
  }
}

/* Fallback for IE
-------------------------------------------------- */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
  .form-label-group > label {
    display: none;
  }
  .form-label-group input:-ms-input-placeholder {
    color: #777;
  }
}