.banner-title{
  display: flex;
  justify-content: center;
  align-items: center;
  height: 348px;
  color: #fff;
  font-size: 50px;
  background: url('../image/index-bg.png') 100% 100% no-repeat;
}


.link-us{
  height: 1197px;
  background: url('../image/about-us.png') 100% 100% no-repeat;
  margin-bottom: 80px;
}

.link-us-title{
  font-size: 50px;
  color: #FFFFFF;
  text-align: center;
  padding: 100px 0 88px;
}

.form-box{
  width: 1395px;
  margin: auto;
}
.form-item{
  width: 100%;
  display: flex;
  align-items: center;
  margin-bottom: 30px;
  background-color: rgba(0, 0, 0, 0.53);
}
.form-item-blue{
  background-color: #1489C4;
}

.form-item .label{
  color: #DEDEDE;
  height: 106px;
  line-height: 106px;
  font-size: 31px;
  width: 135px;
  padding-left: 40px;
}

.form-item2{
  display: block;
}

.input{
  flex: 1;
  border: none;
  color: #DEDEDE;
  font-size: 31px;
  outline: none;
  background-color: transparent;
}

.textarea-box{
  padding: 0 40px 40px;
}
.textarea{
  width: 100%;
  font-size: 31px;
  outline: none;
  border: none;
  color: #DEDEDE;
  background-color: transparent;
}

.form-box .btn{
  display: inline-block;
  width: 268px;
  height: 96px;
  border: none;
  outline: none;
  color: #DEDEDE;
  font-size: 31px;
  background-color: #1489C4;
}
.form-box .btn:hover{
  border: 1px solid #DEDEDE;
}

.desc{
  width: 1280px;
  padding: 113px 0 100px;
  margin: auto;
}

.p-style1{
  font-size: 23px;
  color: #575757;
  line-height: 60px;
  margin-bottom: 60px;
}

.p-style2{
  font-size: 23px;
  color: #2F2F2F;
  margin-bottom: 45px;
  line-height: 40px;
}

.p-style3{
  margin-bottom: 60px;
}

@media (max-width: 1400px){
  .desc{
    width: 85%;
  }
  .p-style1, .p-style2{
    font-size: 20px;
  }
}
@media (max-width: 1500px){
  .form-box{
    width: 85%;
  }
}

@media (max-width: 650px){
  .link-us{
    height: 1100px;
  }
  .desc{
    width: 90%;
    padding: 50px 0;
  }
  .desc p{
    font-size: 18px;
  }
  .desc .p-style1{
    line-height: 45px;
    margin-bottom: 40px;
  }

  .desc .p-style2{
    margin-bottom: 30px;
  }

  .desc .p-style3{
    margin-bottom: 40px;
  }
  .form-box{
    width: 90%;
  }
  .form-item .label{
    font-size: 20px;
    height: 80px;
    line-height: 80px;
    width: 100px;
    padding-left: 20px;
  }
  .form-box .btn{
    width: 160px;
    height: 60px;
    font-size: 20px;
  }
  .input,.textarea{
    font-size: 20px;
  }
  .link-us-title{
    font-size: 40px;
    padding: 80px 0 78px;
  }
  .banner-title{
    height: 300px;
    font-size: 40px;
  }
  .p-style1, .p-style2{
    font-size: 18px;
  }
}

@media (max-width: 500px){
  .desc{
    width: 100%;
    padding: 13px;
    box-sizing: border-box;
  }
  .form-box{
    width: 100%;
    padding: 13px;
    box-sizing: border-box;
  }
  .form-item .label{
    font-size: 18px;
    height: 60px;
    line-height: 60px;
    width: 80px;
    padding-left: 12px;
  }
  .form-box .btn{
    width: 120px;
    height: 50px;
    font-size: 18px;
  }
  .link-us{
    height: 950px;
  }
  .link-us-title{
    font-size: 35px;
    padding: 60px 0 58px;
  }
  .banner-title{
    height: 280px;
    font-size: 35px;
  }
  .p-style1, .p-style2{
    font-size: 16px;
  }
}