@media (max-width: 1199.98px) {
  .book{
      width: 290px;
  }
  .best-top{
      width: 290px;
  }
  .best{
      background-position: 67px 39px;
  }
  .best h6{
      margin-left: 96px;
  }
  .book h1{
      margin-left: 70px;
  }
  .best-top h1{
      margin-left: 70px;
  }
  button{
      font-size: 21px;
  }
  .end-card{
      width: 300px;
  }
  .option{
      padding-left: 0;
  }
  .line::after{
      content: none;
  }
}

@media (max-width: 991.98px) {
    .pre{
        margin: 0 auto;
        margin-top: 50px;
    }
    .line::after{
        content: none;
    }
    .option{
        padding: 50px 0; 
    }
    .line::after{
        right: -130px;
    }
    .line-top{
        margin-top: 30px;
    }
    .option-card{
        margin: 0 auto;
    }
    
}

@media (max-width: 767.98px) {
  .logo{
      text-align: center;
  }
  .logo img{
      width: 230px;
  }
    .num{
        margin: 0 auto;
        margin-top: 30px;
        margin-bottom: 10px;
    }
    header .header-title{
        font-size: 35px;
        margin-top: 100px;
    }
    header .header-subtitle{
        font-size: 17px;
    }
    header .header-btn{
        margin-top: 50px;
        font-size: 21px;
        width: 340px;
        height: 60px;
    }
    button{
        margin-top: 50px;
        font-size: 21px;
        width: 340px;
        height: 60px;
    }
    .book{
        margin: 0 auto;
        margin-top: 50px;
    }
    .best-top{
        margin: 0 auto;
        margin-top: 50px;
    }
    .best{
        background-position: 170px 29px;
    }
    .best h6{
        margin-left: 197px;
        margin-top: 30px;
    }
    .end-card{
        margin: 0 auto;
        margin-top: 50px;
    }
    .end{
        padding: 50px 0;
    }
    .about{
        text-align: center;
        margin-top: 50px;
    }
    .line::after{
        content: none;
    }

    .option-card{
        margin-top: 30px;
    }
    .option-card{
        margin: 0 auto;
    }
}

@media (max-width: 575.98px) {
    .logo img{
        width: 162px;
    }
    header .header-btn{
        font-size: 15px;
        width: 250px;
        height: 50px;
    }
    button{
        font-size: 15px;
        width: 250px;
        height: 50px;
    }
    .advan h2{
        font-size: 43px;
    }
    .best{
        background: none;
    }
    .best h6{
        display: none;
    }
    .option-card{
        margin: 0 auto;
    }
}