.book-alert {
  position: relative;
  background: #F8F9FB;
}
.book-alert .center {
  width: 654px;
  border-radius: 10px;
  background: #fff;
  padding: 50px 70px;
  position: relative;
  margin: 0 auto;
  z-index: 2;
}
.book-alert .center h2 {
  text-align: center;
}
.book-alert .center form {
  margin-top: 30px;
}
.book-alert .center form .box {
  padding-bottom: 14px;
  border-bottom: 1px solid #C1C6D5;
  margin-top: 14px;
}
.book-alert .center form .box h3 {
  display: flex;
  align-items: center;
}
.book-alert .center form .box h3 span {
  color: #BA1A1A;
  margin-right: 14px;
  font-weight: bold;
}
.book-alert .center form .box input {
  display: block;
  width: 100%;
  height: 30px;
  border: none;
  background: none!important;
  margin-top: 14px;
  padding-left: 0;
  box-shadow: none!important;
}
.book-alert .center form .box .layui-edge {
  right: 0;
}
.book-alert .center form .box dl {
  top: 32px;
  border-radius: 10px;
}
.book-alert .center form .box dl dd {
  padding-left: 14px!important;
  line-height: 40px!important;
}
.book-alert .center form .box dl dd.layui-this {
  color: var(--color);
}
.book-alert .center form .box .layui-form-selectup dl {
  top: auto!important;
}
.book-alert .center form .agree {
  display: flex;
  margin-top: 20px;
}
.book-alert .center form .agree .dui {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid #C1C6D5;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-right: 6px;
  flex-shrink: 0;
  position: relative;
  top: 4px;
}
.book-alert .center form .agree .dui svg path {
  fill: #fff;
}
.book-alert .center form .agree .dui.active {
  background: var(--color);
  border: 1px solid var(--color);
}
.book-alert .center form .agree .txt {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.book-alert .center form .agree .txt a {
  color: var(--color);
  text-underline-offset: 4px;
}
.book-alert .center form .agree .txt a:hover {
  text-decoration: underline;
}
.book-alert .center form button {
  border: none;
  width: 100%;
  height: 56px;
  border-radius: 56px;
  background: #000;
  color: #fff;
  margin-top: 20px;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.book-alert .center form button:hover {
  background: var(--color);
}
.book-alert .center .closes {
  position: absolute;
  width: 20px;
  height: 20px;
  right: 20px;
  top: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.book-alert .center .closes span {
  display: block;
  font-size: 20px;
  color: #333;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
}
.book-alert .center .closes:hover span {
  transform: rotate(180deg);
  -webkit-transform: rotate(180deg);
  -moz-transform: rotate(180deg);
  -ms-transform: rotate(180deg);
}
.book-alert .bg {
  position: absolute;
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  z-index: 1;
}
.book-alert .bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media screen and (max-width: 1680px) {
  .book-alert .center {
    width: 34vw;
    padding: 2.5vw 3.5vw;
  }
  .book-alert .center form {
    margin-top: 20px;
  }
  .book-alert .center form .box {
    padding-bottom: 10px;
    margin-top: 10px;
  }
  .book-alert .center form .box h3 span {
    margin-right: 10px;
  }
  .book-alert .center form .box input {
    margin-top: 10px;
    height: 24px;
  }
  .book-alert .center form .box dl {
    top: 26px;
  }
  .book-alert .center form .box dl dd {
    padding-left: 10px!important;
    line-height: 36px!important;
  }
  .book-alert .center form .agree {
    margin-top: 10px;
  }
  .book-alert .center form .agree .dui {
    top: 3px;
  }
  .book-alert .center form button {
    height: 44px;
    margin-top: 14px;
  }
}
@media screen and (max-width: 1200px) {
  .book-alert .center {
    width: 40vw;
  }
}
@media screen and (max-width: 768px) {
  .book-alert .center {
    width: 90%;
    padding: 20px;
  }
}