*{
padding: 0;
margin: 0 ;
box-sizing: border-box;

}

html,body{
    height: 100%;
    min-width: 1200px;
}

a{
    text-decoration: none;color:#333;
}
 a:hover, a:visited, a:link, a:active {
    color:#333;
}
.cursor{
    cursor: pointer;
}
.home{

}
.flex{
    display: flex;

}
.flex-c{
    align-items: center;
}
.flex-j{
    justify-content: center;
}
 
.banner{
    width: 100%;
    height: 480px;
}
.banner-img{
    height: 480px;
    width: 100%;
    object-fit: cover;
}
.centre{
    height: 986px;
     width: 1200px;
     margin: 0 auto;
    padding-top: 120px;
    
}
.centre-top{
    height: 520px;
    width: 1200px;
    margin: 0 auto;
}
.center-top-l{
    height: 100%;
    width: 100%;
}

.center-top-l-img{
    width: 550px;
    height: 400px;
}
.center-top-l-text{
    
    padding-right: 51px;
    height: 252px;
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #666666;
    line-height: 36px;
}
.center-top-r{
    height: 100%;
    width: 100%;
}

.centre-bottom{
    width: 1200px;
    margin: 0 auto;
    flex-direction: column;
  
}
.centre-bottom-img{
    width: 178px;
    height: 38px;

}
.centre-bottom-describe{
    margin-top: 40px;
}
.centre-bottom-item{
    width: 380px;
    height: 200px;
    background: #FFFFFF;
    border: 1px solid #F4F4F4;
    flex-direction: column;
    cursor: pointer;
    transition: all 0.5s;
}
.mrl{
    margin: 0 30px;
}
.centre-bottom-item:hover  {
    transform: translateY(-10px);
    box-shadow: 0px 2px 6px 3px #F4F9FF;
    filter: blur(0px);
}