.authentication .content {
  padding: 6rem 0;
}

.authentication .content .title {
  color: #333;
  font-size: 3.2rem;
  line-height: 4.2rem;
  font-weight: 700;
}

.authentication .content .line {
  width: 3.2rem;
  height: 0.3rem;
  background: var(--color);
  margin: 2rem auto;
}

.authentication .content .box1 {
  margin: 5.1rem 0 7rem;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.authentication .content .box {
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin-top: 0;
}

.authentication .content .box .item {
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  margin-top: 5rem;
  margin-left: 2.4rem;
  padding: 4rem 3rem;
  width: calc(25% - 1.8rem);
  -webkit-box-shadow: 0 0 2rem rgba(0, 0, 0, 0.05);
  box-shadow: 0 0 2rem rgba(0, 0, 0, 0.05);
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.authentication .content .box .item:nth-child(4n + 1) {
  margin-left: 0;
}

.authentication .content .box .item img {
  display: block;
  margin: 0 auto;
}

.authentication .content .box .item .text {
  text-align: left;
}

.authentication .content .box .item .text .tit {
  line-height: 2.4rem;
  font-size: 1.6rem;
  margin: 2rem 0;
  color: #666;
  text-align: center;
  -webkit-box-flex: 0;
  -ms-flex: none;
  flex: none;
  -ms-flex-item-align: stretch;
  align-self: stretch;
  -ms-flex-positive: 0;
  flex-grow: 0;
}

.authentication .content .box .item .text .btn {
  overflow: hidden;
  width: 100%;
  margin-top: auto;
}

.authentication .content .box .item .text button {
  width: 100%;
  border: 0.1rem solid #e9e9e9;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fafafa;
  color: #333;
  padding: 1.1rem 0;
  -webkit-transition: all 0.5s;
  transition: all 0.5s;
}

.authentication .content .box .item .text button .icon {
  vertical-align: sub;
  margin-right: 0.8rem;
}

.authentication .content .box .item .text button .icon svg {
  fill: #666;
}

.authentication .content .box .item .text button:hover {
  border-color: #fff;
  color: #fff;
  background: var(--color);
}

.authentication .content .box .item .text button:hover .icon svg {
  fill: #fff;
}

.authentication.en .content .title {
  text-transform: uppercase;
}

.authentication.en .content .sub {
  width: 75rem;
  margin: 0 auto;
}

@media screen and (max-width: 768px) {
  .authentication .content {
    padding: 1.5rem 0;
  }

  .authentication .content .title {
    font-size: 1.8rem;
    line-height: 1.5;
  }

  .authentication .content .line {
    margin: 1rem auto;
  }

  .authentication .content .sub {
    line-height: 1.5;
  }

  .authentication .content .box {
    margin-top: 1.5rem;
  }

  .authentication .content .box .item {
    width: calc(50% - 0.8rem);
    margin-left: 1.6rem;
    margin-top: 0;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
  }

  .authentication .content .box .item:nth-child(odd) {
    margin-left: 0;
  }

  .authentication .content .box .item .text .tit {
    margin: 1rem 0;
    font-size: 1.4rem;
  }

  .authentication .content .box .item .text .btn button {
    width: 100%;
    margin: 0;
    padding: 1rem 0;
    margin-top: 1rem;
    font-size: 1.4rem;
  }

  .authentication .content .box .item .text .btn button:first-child {
    margin-top: 0;
  }

  .authentication .content .box1 {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    margin: 1.5rem 0;
  }

  .authentication.en .content .title {
    font-size: 2rem;
  }
}