body {
  margin: 0;
  padding: 0;
  background-color: #f3f3f3;
}
.header {
  width: 100%;
  background-color: #ffffff;
  height: 80px;
  line-height: 80px;
  color: #07b49a;
  font-size: 36px;
  text-align: center;
  position: relative;
  font-weight: bold;
  box-shadow: 0px 2px 4px 0px #ededed;
}
.header.header-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
}
.header .back {
  position: absolute;
  font-size: 30px;
  top: 50%;
  transform: translateY(-50%);
  left: 36px;
  font-weight: normal;
  color: #07b49a;
  cursor: pointer;
}
.header .back img {
  height: 30px;
  margin-right: 18px;
}
.header .back img,
.header .back span {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
}
.header .ext {
  position: absolute;
  font-size: 30px;
  top: 50%;
  transform: translateY(-50%);
  right: 36px;
  font-weight: normal;
  cursor: pointer;
  color: #07b49a;
}
.header .ext img {
  height: 30px;
  margin-right: 18px;
}
.header .ext img,
.header .ext span {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
}
.header .more {
  position: absolute;
  font-size: 30px;
  color: #ffffff;
  background-color: #07b49a;
  left: 0px;
  padding: 0 30px;
  font-weight: normal;
  cursor: pointer;
}
.header .more img {
  height: 30px;
  margin-right: 18px;
}
.header .more img,
.header .more span {
  display: inline-block;
  vertical-align: middle;
  line-height: 1;
}
.header .more .more-op {
  display: none;
}
.clearfix {
  clear: both;
}
.hidden {
  display: none;
}
.btn {
  border: none;
  border-radius: 5px;
  cursor: pointer;
  display: inline-block;
  box-sizing: border-box;
  text-decoration: none;
  font-size: 30px;
  padding: 15px 30px;
}
.btn.btn-primary {
  background-color: #07b49a;
  color: #ffffff;
}
.btn.btn-warning {
  background-color: #f79e2a;
  color: #ffffff;
}
.btn.btn-disabled {
  background-color: #d6d6d6;
}
.btn.btn-lg {
  font-size: 48px;
  padding: 20px 260px;
}
.text.text-secondary {
  color: #504f4f;
}
.text.text-important {
  color: #e12424;
}
.copyright {
  display: none;
  text-align: center;
  margin-top: 30px;
  color: #504f4f;
  font-size: 24px;
}
.copyright.copyright-fixed {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
}
.copyright img {
  width: 48px;
  height: 30px;
  margin-right: 15px;
}
.copyright img,
.copyright span {
  vertical-align: middle;
  display: inline-block;
}
.error-tips .mask {
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  position: fixed;
  background-color: #000000;
  opacity: 0.8;
}
.error-tips .body {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #ffffff;
  width: 500px;
  border-radius: 10px;
  overflow: hidden;
}
.error-tips .body .info {
  padding: 20px;
  font-size: 36px;
  color: #515050;
  text-align: center;
}
.error-tips .body .close {
  background-color: #07b49a;
  text-align: center;
  cursor: pointer;
  color: #ffffff;
  font-size: 36px;
  padding: 10px 0;
}
.intro {
  margin: 55px auto;
  text-align: center;
  width: 642px;
}
.intro .steps {
  font-size: 0;
}
.intro .steps .item {
  display: inline-block;
  vertical-align: middle;
  border: 2px solid #07b49a;
  border-radius: 10px;
  box-shadow: 0px 2px 4px 0px #ededed;
  background-color: #ffffff;
  padding: 13px 25px;
}
.intro .steps .item img {
  width: 120px;
  height: 120px;
}
.intro .steps .item .step {
  color: #07b49a;
  font-weight: bold;
  font-size: 24px;
}
.intro .steps .item .tips {
  color: #504f4f;
  font-size: 20px;
  line-height: 25px;
}
.intro .steps .item-arrow {
  display: inline-block;
  vertical-align: middle;
  padding: 0 5px;
}
.intro .steps .item-arrow img {
  width: 50px;
}
.intro .features {
  margin-top: 50px;
}
.intro .features .item {
  text-align: left;
  padding: 17px 32px;
  background-color: #ffffff;
  margin-top: 20px;
  border-radius: 10px;
  font-size: 24px;
  color: #504f4f;
}
.intro .features .item img {
  width: 66px;
  height: 66px;
}
.intro .features .item img,
.intro .features .item span {
  vertical-align: middle;
  display: inline-block;
}
.intro .features .item .title {
  color: #07b49a;
  font-size: 30px;
  font-weight: bold;
  margin: 0 38px 0 34px;
}
.op {
  text-align: center;
  margin-top: 44px;
}
.op .btn {
  width: 642px;
}
.op .tips {
  margin-top: 30px;
  font-size: 24px;
  color: #91b8b2;
}