* {
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
}

html,
body {
    font-family: PingFangSC-Regular, PingFang SC;
    font-size: 62.5%;
    height: 100%;
    background-size: cover;
}

header {
    background: url(./images/welcome_bg.png) no-repeat;
    background-size: 100% 100%;
    display: flex;
  color: #FFFFFF ;
  font-size: 1.8rem;
  line-height: 10rem;
  align-items: center;
  justify-content: center;
    height: 10rem;
    padding: 0 10%;
  
    width: 80%;
 
}

.header{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 10rem;
    padding: 0 10%;
  
    width: 80%;
}
.main {
    height: 100%;
}

.logo-box {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.8rem;
    color: #333;
}
.logo-style{
    display: flex;
    justify-content: center;

}
.logo-btn{
    margin-right: 3rem;
    text-align: center;
    width: 160px;
height: 40px;
background: #F5F5FD;
box-shadow: 0px 4px 7px 0px rgba(165,179,196,0.43);
border-radius: 25px 25px 25px 25px;
opacity: 1;
}
.logo-btn2{
    margin-right: 3rem;
    text-align: center;
    width: 160px;
height: 40px;
background: #418ADF;
box-shadow: 0px 4px 7px 0px rgba(165,179,196,0.43);
border-radius: 25px 25px 25px 25px;
opacity: 1;
}

.logo-btn2 a {
    text-decoration: none;
    color: #ffffff;
    line-height: 4rem;
  margin: 0 auto;
    font-size: 1.6rem;
}
.logo-btn a {
    text-decoration: none;
    color: #333;
    line-height: 4rem;
  margin: 0 auto;
    font-size: 1.6rem;
}
.middle-box{
    padding: 5rem 0 15rem;
    display: flex;
    justify-content:space-around;
    align-items: center;

}
.middle-one{
    background: linear-gradient(180deg, #FAFCFF 0%, #E8F3FF 100%);
    box-shadow: 0px 4px 7px 0px rgba(165,179,196,0.57);
    border-radius: 12px 12px 12px 12px;
    opacity: 1;
width: 43rem;
height: 48rem;
}
.middle-two{
    background: linear-gradient(180deg, #FAFCFF 0%, #E8F3FF 100%);
box-shadow: 0px 4px 7px 0px rgba(165,179,196,0.57);
border-radius: 12px 12px 12px 12px;
opacity: 1;
    width: 49rem;
    height: 55rem;
}
/* .middle-three{
    width: 43rem;
    height: 48rem;
    } */
    .color-b{
        color: #418ADF ;
    }
.title{
    padding: 22% 0 10%;
    text-align: center;
    font-size: 4rem;
    font-weight: 600;
}
.contain{
    padding: 0 10%;
    line-height: 3.7rem;
    text-align: center;
    font-size: 2.4rem;
    color: #333333;
}
.logo-btn a:hover {
    text-decoration: none;
}

.container {
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 80%;
    margin: 0 auto;
}
.box-contain{
    background: url(images/bg.png) no-repeat;
}
.box {
   
   display: flex;
  
   flex-direction: column;
   justify-content: center;
   align-items: center;
   
}
.box img{
    width: 100%;
}
.box-one{
    color: #000000;
    font-weight: 600;
    font-size: 1.8rem;
    padding: 0 10%;
    margin: 1% 0;
    text-align: center;
}
.box-two{
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    padding: 0 0;
    margin: 0 0 0.7%;
    color: #666666 ;
}
.box-three{
    display: flex;
    font-size: 1.4rem;
    justify-content: center;
    color: #666666 ;
    align-items: center;
}
.box img{
    width: 16px;
    height: 16px;
}
.w-blue{
    color: #2E9AC8 ;
    font-size: 3rem;
}
.bottom{
    height: 3.8rem;
    line-height: 3.8rem;
    color: #999999 ;
    text-align: center;
    background-color: #9999994a;
}


@media screen and (max-width: 1500px) {
    .box-one{
        padding: 0 0;
    }
    .box-two{
        padding: 0 0;
    }
    .middle-one{
        width:400px;
        height: 440px;
    }
    .middle-two{
        margin: 3rem 0;
        width: 450px;
        height: 520px;
    }
}
@media screen and (max-width: 1100px) {
    .logo-box {
        font-size: 2rem;
    }
    .logo-btn a {
        font-size: 2rem;
    }
    .container {
        justify-content: center;
    }
  
}

@media screen and (max-width: 1000px) {
    .logo-btn a {
        font-size: 1.6rem;
        margin-right: 0;
    }
    .container {
        justify-content: center;
        flex-direction: column;
    }
    .box {
        padding-left: 0;
    }
   
}

@media screen and (max-width: 640px) {
    header {
        line-height: 2rem;
        font-size: 1.3rem;
        padding: 0 5%;
        width: 90%;
    }
  
    .logo-box {
        font-size: 1.6rem;
    }
    .logo-box img{
        width: 100%;
    }
    .header{
        display: flex;
        flex-direction: column;
    }
    .logo-style{
        display: flex;
        flex-direction: column;
    }
    .logo-btn {
        width: 80%;
        margin-bottom: 10%;
    }
    .logo-btn a {
        font-size: 1.4rem;
        margin-right: 0;
        display: block;
    }
    .logo-btn a:first-child {
        margin-right: 0;
    }
    .container {
        justify-content: center;
    }
    .box {
        margin-top: 1rem;
        flex-direction: column;
        padding-left: 0;
    }
    .middle-box{
     padding: 5rem 0 3rem;
        flex-direction: column;
    }
    .middle-one{
        width: 90%;
        height: 300px;
    }
    .middle-two{
        margin: 3rem 0;
        width: 90%;
        height: 360px;
    }
    .title{
        font-size: 2rem;
        padding: 10% 0 5%;
    }
    .contain{
        font-size: 1.5rem;
    }
   .box-one{
    font-size:1.5rem;
   }
   .w-blue{
    font-size: 1.6rem;
   }
   .box-two{
    text-align: center;
    font-size: 1.2rem;
   }
}