/* ------------------------------------------
 * IT书包
 * 网址：www.itshubao.com
 * 整理：yinq<3331653644@qq.com> 
 -------------------------------------------- */
/*--------------------
Mixins
--------------------*/
/*--------------------
Body
--------------------*/
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  background: #fff;
  font-weight: 300;
  text-align: center;
  font-family: 'Microsoft YaHei', sans-serif;
  font-size: 15px;
}

/*--------------------
Button
--------------------*/
.btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.btn button {
  border: 2px solid #0a7fad;
  border-radius: 20px;
  color: #0a7fad;
  text-transform: uppercase;
  background: none;
  padding: 11px 46px;
  font-weight: 700;
  outline: none;
  cursor: pointer;
  transition: all .3s ease-in-out;
  display: inline-block;
  height: 40px;
  width: 177px;
  user-select: none;
}
.btn button:hover {
  background: #0a7fad;
  color: #fff;
}
.btn.loading::before {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #fff;
  z-index: 2;
  margin-top: 4px;
  animation: ball 0.45s cubic-bezier(0, 0, 0.15, 1) alternate infinite;
  animation-delay: .15s;
}
.btn.loading button {
  font-size: 0;
  width: 40px;
  background: #0a7fad;
}
.btn.loading button::before {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #fff;
  z-index: 2;
  margin-top: 4px;
  animation: ball 0.45s cubic-bezier(0, 0, 0.15, 1) alternate infinite;
  margin-left: -10px;
}
.btn.loading button::after {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  content: '';
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #fff;
  z-index: 2;
  margin-top: 4px;
  animation: ball 0.45s cubic-bezier(0, 0, 0.15, 1) alternate infinite;
  margin-left: 10px;
  animation-delay: .3s;
}

/*--------------------
Message
--------------------*/
.message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  width: 360px;
  height: 145px;
  color: #fff;
  background: linear-gradient(135deg, #0a5e79, #2ba888);
  border-radius: 120px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  padding: 36px;
  transition: all .3s ease-in-out .3s;
  transform: scale(0) translate(-50%, -100%);
  transform-origin: 0 0;
  opacity: 0;
  user-select: none;
}
.message .title {
  font-size: 20px;
  text-transform: uppercase;
  text-shadow: 0 2px 2px rgba(0, 0, 0, 0.1);
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  transition: all .3s ease-in-out .2s;
  transform: scale(0) translateY(-20%);
  opacity: 0;
  -webkit-backface-visibility: hidden;
}
.message .msg {
  font-size: 14px;
  line-height: 1.4;
  font-style: italic;
  position: relative;
  transition: all .3s ease-in-out .1s;
  transform: scale(0) translateY(-20%);
  opacity: 0;
  -webkit-backface-visibility: hidden;
}
.message .close {
  position: absolute;
  top: 5px;
  right: 5px;
  z-index: 2;
  cursor: pointer;
  width: 18px;
  height: 18px;
  transition: all .3s ease-in-out 0s;
  transform: scale(0) translateY(-20%);
  opacity: 0;
}
.message .close svg {
  width: 18px;
  height: 18px;
}
.message.message-error {
  background: linear-gradient(135deg, #f0223e, #f34238);
}

.message.active {
  opacity: 1;
  transform: scale(1) translate(-50%, -50%);
  transition: all 0.3s cubic-bezier(0, 1.07, 0.48, 1.11) 0.1s;
  border-radius: 12px;
}
.message.active .title {
  opacity: 1;
  transition: all 0.3s cubic-bezier(0, 1.07, 0.48, 1.11) 0.3s;
  transform: scale(1) translateY(0);
}
.message.active .msg {
  opacity: 1;
  transition: all 0.3s cubic-bezier(0, 1.07, 0.48, 1.11) 0.4s;
  transform: scale(1) translateY(0);
}
.message.active .close {
  opacity: 1;
  transition: all 0.3s cubic-bezier(0, 1.07, 0.48, 1.11) 0.55s;
  transform: scale(1) translateY(0);
}

.message.closing {
  opacity: 0;
  transform: scale(0) translate(-50%, -50%);
}
.message.closing .title, .message.closing .msg, .message.closing .close {
  opacity: 0;
  transform: scale(0) translateY(0);
}

/*--------------------
Keyframe
--------------------*/
@keyframes ball {
  from {
    transform: translateY(0) scaleY(0.8);
  }
  to {
    transform: translateY(-10px);
  }
}