html, body {
  height: 100%;
  background: #fff;
}

.logo {
  width: 1.55rem;
  height: 1.95rem;
  margin: 0 auto 3rem;
  padding-top: 1.3rem;
}

.logo img {
  width: 1.55rem;
  height: 1.95rem;
}

.form-item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 5.9rem;
  height: 1.22rem;
  margin: 0 auto;
  padding: 0 0.07rem;
  font-size: 0.28rem;
  color: #333;
}

.form-item label {
  width: 1.4rem;
  font-size: 0.32rem;
  color: #999;
}

.form-item input {
  -webkit-box-flex: 1;
      -ms-flex: 1;
          flex: 1;
  border: none;
  height: 100%;
  font-size: 0.28rem;
}

.form-item i {
  padding-left: 0.2rem;
}

.form-item span {
  width: 1.7rem;
  height: 0.6rem;
  line-height: 0.6rem;
  text-align: center;
  border: 0.02rem solid rgba(255,179,84,1);
  border-radius: 0.08rem;
  color: rgba(255,179,84,1);
  font-size: 0.28rem;
}

.form-item span.active {
  color: #C9C9C9;
  border-color: #C9C9C9;
}

.form-btn {
  width: 5.9rem;
  margin-top: 0.6rem;
}

.form-btn__active {
  background: #E8E8E8;
  color: #C9C9C9;
}

.form-bottom {
  width: 5.9rem;
  margin: 0.4rem auto 0 auto;
  color: #F58548;
  font-size: 0.28rem;
}

.protocol {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin: 1.8rem 0 0 0.35rem;
  color: #555555;
  font-size: 0.28rem;
}

.protocol i {
  background: #24BFA7;
  border: 1px solid transparent;
  border-radius: 0.04rem;
  font-size: 0.3rem;
  margin-right: 0.07rem;
  padding: 0.01rem;
  color: #fff;
}

.protocol i.active {
  border-color: #999;
  color: transparent;
  background: transparent;
}

.protocol span {
  color: #3178E2;
}