body, html {
    font-family: "Helvetica Neue",Helvetica,Arial,sans-serif;
    font-size: 1vw;
    line-height: 2em;
    margin: 0;
    background-color: #f7f7f7 !important;
    text-align: justify;
}

.card-header.card-header-info{
    background-color: #ff6a00;
}

.container {
    max-width: 1400px;
    min-width: 300px;
}

.title2 {
    color: #023e8a;
}

.line_hear1 {
    width: 100%;
    background-color: rgb(255, 87, 34);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    height: 0.3em;
    left: -1px;
    margin-bottom: 10px;
}

.line_hear2 {
    width: 100%;
    background-color: #E9E9E9;
    height: 0.2em;
    left: -1px;
}

.line_footer {
    width: 100%;
    background-color: rgb(255, 87, 34);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    height: 0.2em;
    left: -1px;
}

.panel-title {
    font-size: 0.7vw;
}

.reload_PicCaptcha {
    width: 30px;
    height: 30px;
    vertical-align: middle;
}

.img_Captcha {
    height: 1.5vw !important;
    width: 150px !important;
    margin-bottom: 2px;
}

@media screen and (min-width: 320px) {    
    .title1 {
        font-size: 3vw !important;
    }

    .title2 {
        font-size: 4.2vw !important;
        font-weight: bold;
    }
    .card-body{
        font-size: 3vw;
    }

    .pan_LienHe{
        display: none !important;
    }

    .goihocphi {
        flex-direction: column;
    }

    .goihocphi_chitiet {
        flex-basis: 80%;
        height: 500px;
    }

    .goihocphi_chitiet_header {
        height: 60px;
        font-size: 3.8vw;
    }

    .btn_GoiHocPhi {
        height: 8vw;
    }

    .DonGiaGoc {
        font-size: 5vw;
    }

    .SoTienPhaiNop {
        font-size: 7vw;
    }

    .lich_list tbody tr td label {
        height: 4vw;
        font-size: 4vw;
        margin-left: 5px;     
           
        font-weight: normal;
        display: inline; /* hoặc inline-block */
        vertical-align: middle;

        margin-bottom: 12px;
        line-height: 1.4;
    }

    .lich_list tbody tr td input {
        height: 4vw;
        font-size: 4vw;
        margin-left: 5px;

        font-weight: normal;
        display: inline; /* hoặc inline-block */
        vertical-align: middle;

        margin-bottom: 12px;
        line-height: 1.4;
    }

    .txt_Captcha{
        width: 25vw !important;
    }

    .reload_PicCaptcha {
        width: 25px;
        height: 5vw !important;
        vertical-align: middle;
        margin-bottom: 2px;
    }

    .img_Captcha {
        height: 6vw !important;
        width: 120px !important;
        margin-bottom: 2px;
    }

    .footer{
        font-size: 2vw;
    }

    .btn.btn-outline-primary{
        font-size: 3vw;
        margin-left: 5px;
    }
}

@media screen and (min-width: 600px) {
    .title1 {
        font-size: 2vw !important;
        font-weight: bold !important;
    }

    .title2 {
        font-size: 2.5vw !important;
        font-weight: bold !important;
    }
    
    .card-body{
        font-size: 2.5vw;
    }

    .goihocphi {
        flex-direction: row;
        justify-content: center;
    }

    .goihocphi_chitiet {
        flex-basis: 80%;
        height: 500px;
    }

    .goihocphi_chitiet_header {
        height: 10vw !important;
        font-size: 2.6vw !important;
    }

    .btn_GoiHocPhi {
        height: 6vw;
    }

    .DonGiaGoc {
        font-size: 3vw;
    }

    .SoTienPhaiNop {
        font-size: 5vw;
    }

    .lich_list tbody tr td label {
        height: 2vw;
        font-size: 2vw;
        margin-left: 5px;
    }

    .lich_list tbody tr td input {
        height: 1.5vw;
        font-size: 1.5vw;
        margin-left: 10px;
    }
    
    .txt_Captcha{
        width: 100px !important;
    }

    .reload_PicCaptcha {
        width: 25px;
        height: 3.2vw !important;
        vertical-align: middle;
        margin-bottom: 2px;
    }

    .img_Captcha {
        height: 3.2vw !important;
        width: 120px !important;
        margin-bottom: 2px;
    }
}

@media screen and (min-width: 1024px) {
    .title1 {
        font-size: 1.5vw !important;
        font-weight: bold !important;
    }

    .title2 {
        font-size: 1.8vw !important;
        font-weight: bold !important;
    }

    .goihocphi {
        flex-direction: row;
    }

    .goihocphi_chitiet {
        flex-basis: 31%;
        height: 550px;
    }

    .goihocphi_chitiet_header {
        height: 5.5vw !important;
        font-size: 1.5vw !important;
    }

    .btn_GoiHocPhi {
        height: 3vw;
    }

    .DonGiaGoc {
        font-size: 30px;
    }

    .SoTienPhaiNop {
        font-size: 50px;
    }

    .lich_list tbody tr td label {
        height: 20px !important;
        font-size: 12.5pt !important;
        font-weight: normal !important;
        margin-left: 10px;
    }

    .lich_list tbody tr td input {
        height: 10px !important;
        margin-left: 10px;
        font-size: 3vw !important;
    }

    .txt_Captcha{
        width: 120px !important;
    }

    .reload_PicCaptcha {
        width: 26px;
        height: 26px !important;
        vertical-align: middle;
        margin-bottom: 2px;
    }

    .img_Captcha {
        height: 26px !important;
        width: 150px !important;
        margin-bottom: 2px;
    }
    
    .footer{
        font-size: 1.2vw;
    }

    .card-body{
        font-size: 1vw  !important;
    }

    .btn.btn-outline-primary{
        font-size: 1.2vw;
    }
}