.center{
    width: 1100px;
    margin: 0 auto;
    padding-top: 80px;
    padding-bottom: 60px;
}
.title{
    font-size: 40px;
    font-weight: bolder;
    margin-top: 40px;
    margin-bottom: 30px;
}
.choose{
    height: 400px;
    margin-bottom: 50px;
}
.c1{
    font-size: 30px;
    text-align: center;
    line-height: 80px;
    letter-spacing: 30px;
    width: 300px;
    height: 80px;
    background-color: aquamarine;
    border-radius: 50px;
    margin-bottom: 40px;
}
.c2{
    font-size: 30px;
    text-align: center;
    line-height: 80px;
    letter-spacing: 30px;
    width: 300px;
    height: 80px;
    background-color: pink;
    border-radius: 50px;
    margin-bottom: 40px;
}
.c3{
    font-size: 30px;
    text-align: center;
    line-height: 80px;
    letter-spacing: 30px;
    width: 300px;
    height: 80px;
    background-color: rgb(142, 235, 139);
    border-radius: 50px;
}
#c1{
    padding-top: 30px;
    padding-bottom: 30px;
}
#c1 li{
    height: 400px;
    margin-bottom: 150px;
}
#c1 .left{
    margin-right: 20px;
    width: 500px;
    float: right;
}
#c1 .imgbox{
    width: 550px;
    height: 430px;
    float: right;
    background-color: #C0C0C0;
}
#c1 img{
    /* width: 350px; */
    margin-left: 100px;
    margin-top: 50px;
}
#c1 a{
    color: #000;
    font-weight: bolder;
    float: right;
    font-size: 24px;
    margin-bottom: 20px;
}
#c1 p{
    float: right;
    font-size: 15px;
    line-height: 140%;
}

#c2{
    padding-top: 30px;
    padding-bottom: 30px;
}
#c2 li{
    height: 400px;
    margin-bottom: 150px;
}
#c2 .left{
    margin-right: 20px;
    width: 500px;
    float: right;
}
#c2 .imgbox{
    width: 550px;
    height: 420px;
    float: right;
    background-color: #C0C0C0;
}
#c2 img{
    /* width: 350px; */
    margin-left: 100px;
    margin-top: 50px;
}
#c2 a{
    color: #000;
    font-weight: bolder;
    float: right;
    font-size: 24px;
    margin-bottom: 20px;
}
#c2 p{
    float: right;
    font-size: 15px;
    line-height: 140%;
}

#c3{
    padding-top: 30px;
    padding-bottom: 30px;
}
#c3 li{
    height: 400px;
    margin-bottom: 150px;
}
#c3 .left{
    margin-right: 20px;
    width: 500px;
    float: right;
}
#c3 .imgbox{
    width: 550px;
    height: 430px;
    float: right;
    background-color: #C0C0C0;
}
#c3 img{
    /* width: 350px; */
    margin-left: 100px;
    margin-top: 50px;
}
#c3 a{
    color: #000;
    font-weight: bolder;
    float: right;
    font-size: 24px;
    margin-bottom: 20px;
}
#c3 p{
    float: right;
    font-size: 15px;
    line-height: 140%;
}