html, body {
    width: 100%;
    height: 100%;
    margin: 0;
}

.wrapper {
  -webkit-user-select: none;
  --input-focus: #2d8cf0;
  --font-color: #323232;
  --font-color-sub: #666;
  --bg-color: #fff;
  --bg-color-alt: #666;
  --main-color: #323232;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}
/* switch card */
.switch {
  transform: translateY(-200px);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 30px;
  width: 50px;
  height: 20px;
}
/*
.card-side::before {
  position: absolute;
  content: '登录';
  left: -70px;
  top: 0;
  width: 100px;
  text-decoration: underline;
  color: var(--font-color);
  font-weight: 600;
}

.card-side::after {
  position: absolute;
  content: '注册';
  left: 70px;
  top: 0;
  width: 100px;
  text-decoration: none;
  color: var(--font-color);
  font-weight: 600;
}
*/
.text {
    position: absolute;
    left: -70px;
    top: 0;
    width: 68px;
    color: var(--font-color);
    font-weight: 600;
}
.text_last {
    position: absolute;
    left: 70px;
    top: 0;
    width: 68px;
    color: var(--font-color);
    font-weight: 600;
}
.toggle {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  box-sizing: border-box;
  border-radius: 5px;
  border: 2px solid var(--main-color);
  box-shadow: 4px 4px var(--main-color);
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-colorcolor);
  transition: 0.3s;
}

.slider:before {
  box-sizing: border-box;
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  border: 2px solid var(--main-color);
  border-radius: 5px;
  left: -2px;
  bottom: 2px;
  background-color: var(--bg-color);
  box-shadow: 0 3px 0 var(--main-color);
  transition: 0.3s;
}

.slider_two {
  box-sizing: border-box;
  border-radius: 5px;
  border: 2px solid var(--main-color);
  box-shadow: 4px 4px var(--main-color);
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #2d8cf0;
  transition: 0.3s;
}
.slider_two:before {
  box-sizing: border-box;
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  border: 2px solid var(--main-color);
  border-radius: 5px;
  left: -2px;
  bottom: 2px;
  background-color: var(--bg-color);
  box-shadow: 0 3px 0 var(--main-color);
  transition: 0.3s;
  transform: translateX(30px);
}

/* card */ 

.flip-card__inner {
  width: 300px;
  height: 350px;
  position: relative;
  background-color: transparent;
  perspective: 1000px;
    /* width: 100%;
    height: 100%; */
  text-align: center;
  transition: transform 0.8s;
  transform-style: preserve-3d;
}

.toggle:checked ~ .flip-card__inner {
  transform: rotateY(180deg);
}

.toggle:checked ~ .flip-card__front {
  box-shadow: none;
}

.flip-card__front, .flip-card__back {
  padding: 20px;
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  gap: 20px;
  border-radius: 5px;
}

.flip-card__back {
  width: 100%;
  transform: rotateY(180deg);
}

.flip-card__form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.title {
  margin: 20px 0 20px 0;
  font-size: 25px;
  font-weight: 900;
  text-align: center;
  color: var(--main-color);
}

.flip-card__input {
  width: 250px;
  height: 40px;
  border-radius: 5px;
  border: 2px solid var(--main-color);
  background-color: var(--bg-color);
  box-shadow: 4px 4px var(--main-color);
  font-size: 15px;
  font-weight: 600;
  color: var(--font-color);
  padding: 5px 10px;
  outline: none;
}

.flip-card__input::placeholder {
  color: var(--font-color-sub);
  opacity: 0.8;
}

.flip-card__input:focus {
  border: 2px solid var(--input-focus);
}

.flip-card__btn:active, .button-confirm:active {
  box-shadow: 0px 0px var(--main-color);
  transform: translate(3px, 3px);
}

.flip-card__btn {
  margin: 20px 0 20px 0;
  width: 120px;
  height: 40px;
  border-radius: 5px;
  border: 2px solid var(--main-color);
  background-color: var(--bg-color);
  box-shadow: 4px 4px var(--main-color);
  font-size: 17px;
  font-weight: 600;
  color: var(--font-color);
  cursor: pointer;
} 
.method {
    display: none;
}
.top {
    position: fixed;
    width: 100%;
    height: 40px;
    background-color: red;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

#sakura {
    position: absolute;
    z-index: -99;
    top: 0;
}

.notice_ {
  padding: 10px;
  border-radius: 10px;
  background-color: #2f2727;
  font-size: 20px;
  color: white;
  position: fixed;
  z-index: 9999999999999999;
  top: 20%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  animation: notice_display;
  animation-duration: 4s;
}
@keyframes notice_display {
    60% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}
.new_email_main {
    display:flex;
}
.other {
    display: block;
    font-size: 15px;
    color: white;
    background-color: #ffffff00;
    border: none;
    margin: 0 auto;
    cursor: pointer;
    margin-top: -40px;
}