.two-box{
    display: flex;
    justify-content: space-between;
}
.twoLeft{
    width: 30%;
}
.twoLeft img{
    width: 100%;
    height: 100%;
} 
.twoRight{
    width: 70%;
    box-sizing: border-box;
    padding-left: 10px
}
.twoRight h3{
    line-height: 50px;
}
.twoRight div{
    width: 100%;
    display: flex;
    align-items: center;
    margin: 10px 0;
}
.twoRight .btn1{
    width: 250px;
    line-height: 40px;
    margin: 15px 10px 15px 0;
    border-radius: 20px;
    color: white;
    font-size: 16px;
    background-color: rgb(170, 0, 8);
}
.twoRight .btn2{
    width: 250px;
    line-height: 40px;
    margin: 15px 10px 15px 0;
    border-radius: 20px;
    color: rgb(170, 0, 8);
    font-size: 16px;
    border: 1px solid rgb(170, 0, 8);
}
.three{
    display: flex;
    padding-bottom: 10px;
    margin-top: 20px;
    color: rgb(154, 153, 153);
    border-bottom: 1px solid rgb(177, 177, 177);
}
.three div{
    margin: 0 10px;
    cursor: pointer;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
}
.three .red{
    border-bottom: 2px solid rgb(170, 0, 8);
    color: rgb(170, 0, 8);
}
.back{
    display: none;
}
@media screen and (max-width: 800px){
    .one{
        display: none;
    }
    .back{
        display: block;
        margin-left: 20px;
    }
    .two-box{
        width: 100%;
        display: block;
    }
    .twoLeft img{
        width: 300px;
    }
    .twoRight{
        width: 100%;
        box-sizing: border-box;
        padding-left: 10px
    }
}