#section-banner-sk4y {
    position: relative;
    display: inline-block;
}

#section-banner-sk4y #img-banner-sk4y {
    display: block;
}

#section-banner-sk4y::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 35%;
    /* ความสูงของ fade */
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, white 100%);
    /* background: #ff6e34; */
    pointer-events: none;
}

/* ค่าปกติ */
#col-setep-no1,
#col-setep-no2 {
    transition: opacity 0.5s ease;
}

/* จาง */
.dim {
    opacity: 0.4;
}

/* เข้ม */
.bright {
    opacity: 1;
}

.div-btn-see-course-sk4y {
    position: absolute;
    bottom: 45%;
}

@media only screen and (max-width: 1400px) {
    .div-btn-see-course-sk4y {
        bottom: 40%;
    }
}

@media only screen and (max-width: 992px) {
    .div-btn-see-course-sk4y {
        bottom: 40%;
    }

    #section-sk4y-content .stepno1 {
        font-size: 30vw !important;
    }

    #section-sk4y-content .stepno2 {
        font-size: 30vw !important;
    }
}

@media only screen and (max-width: 768px) {
    .div-btn-see-course-sk4y {
        bottom: 35%;
    }

    #section-banner-sk4y .btn-sk4y-orange {
        font-size: 14px !important;
        padding-top: 0.25rem !important;
        padding-bottom: 0.25rem !important;
        padding-right: 0.75rem !important;
        padding-left: 0.75rem !important;
    }

    #section-banner-sk4y .btn-sk4y-white-gray {
        font-size: 14px !important;
        padding-top: 0.25rem !important;
        padding-bottom: 0.25rem !important;
        padding-right: 0.75rem !important;
        padding-left: 0.75rem !important;
    }

    #section-banner-sk4y .btn-sk4y-orange:hover {
        font-size: 14px !important;
        padding-top: 0.25rem !important;
        padding-bottom: 0.25rem !important;
        padding-right: 0.75rem !important;
        padding-left: 0.75rem !important;
    }

    #section-banner-sk4y .btn-sk4y-white-gray:hover {
        font-size: 14px !important;
        padding-top: 0.25rem !important;
        padding-bottom: 0.25rem !important;
        padding-right: 0.75rem !important;
        padding-left: 0.75rem !important;
    }

    #section-sk4y-course .splide__arrow.splide__arrow--prev {
        margin-left: 0px !important;
    }

    #section-sk4y-course .splide__arrow.splide__arrow--next {
        margin-right: 0px !important;
    }

    #section-sk4y-instructor .splide__arrow.splide__arrow--prev {
        margin-left: 0px !important;
    }

    #section-sk4y-instructor .splide__arrow.splide__arrow--next {
        margin-right: 0px !important;
    }
}

.section-sk4y-course button.splide__arrow.splide__arrow--prev:hover,
.section-sk4y-course button.splide__arrow.splide__arrow--next:hover {
    color: #1daff3 !important;
    /* border: 1px solid #2BCCE4 !important; */
    border: 1px solid #1daff3 !important;
}

.section-sk4y-course .splide__pagination__page.is-active {
    transform: scale(1) !important;
    background: #1daff3 !important;
}

.btn-sk4y-orange,
.btn-sk4y-white-gray {
    transition: all 0.2s ease;
    /* ความเร็วและความลื่น */
    transition-delay: 0.1s;
    /* หน่วงก่อนเริ่มเปลี่ยน */
}

.btn-sk4y-orange {
    border-radius: 14px;
    border: 2px solid #ff7841;
    background-color: #ff7841;
    color: #fff;
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.25);
}

.btn-sk4y-white-gray {
    border-radius: 14px;
    border: 2px solid #fff;
    background-color: #cfcdca;
    color: #fff;
    box-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.25);
}

.btn-sk4y-orange:hover {
    border: 2px solid #1daff3;
    background-color: #1daff3;
    color: #fff;
}

.btn-sk4y-white-gray:hover {
    border: 2px solid #fff;
    background-color: #fff;
    color: #000;
}

#section-sk4y-content .stepno1 {
    opacity: .05;
    position: absolute;
    z-index: 0;
    right: 10%;
    font-size: 15vw;
    top: 20%;
    line-height: 56px;
    font-weight: 500;
}

#section-sk4y-content .stepno2 {
    opacity: .05;
    position: absolute;
    z-index: 0;
    left: 10%;
    font-size: 15vw;
    top: 20%;
    line-height: 56px;
    font-weight: 500;
}

#section-sk4y-instructor .instructor-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

#section-sk4y-instructor .instructor-img img {
    width: 100%;
    height: auto;
}

#section-sk4y-instructor .instructor-img {
    overflow: hidden;
    /* กันรูปล้นตอนซูม */
}

#section-sk4y-instructor .instructor-img img {
    transition: transform 0.4s ease;
    /* ลื่นตอนซูม */
}

#section-sk4y-instructor .instructor-img:hover img {
    transform: scale(1.1);
    /* ซูมประมาณ 5% */
}

#section-sk4y-instructor .is-visible img {
    transform: scale(1.05);
    /* ซูมประมาณ 5% */
}

#section-sk4y-course .splide__arrow.splide__arrow--prev,
#section-sk4y-instructor .splide__arrow.splide__arrow--prev {
    margin-left: -60px;
}

#section-sk4y-course .splide__arrow.splide__arrow--next,
#section-sk4y-instructor .splide__arrow.splide__arrow--next {
    margin-right: -60px;
}

#section-sk4y-course #myTab .nav-link.active,
#myTab .show>.nav-link {
    border: 1px solid #00acfa;
    background: #f3fbff;
    box-shadow: 0px 4px 12px 0px rgba(63, 171, 245, .24);
    color: #00acfa;
}

.sk4y-bage {
    color: #fff;
    height: 32px;
    background: #ff7944;
    box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.1), 0px 4px 14px rgba(0, 0, 0, 0.08);
    border-radius: 16px;
}

/* ------ st navigate ------- */
.navigate-sk4y {
    position: relative;
    display: flex;
    align-items: center;
    color: #fff;
    height: 40px;
    background: #0d97df;
    border-radius: 4px 0px 0px 4px;
    padding-left: 21px;
    padding-right: 10px;
}

.navigate-sk4y.now {
    color: #757575;
    background: #F2F7FB;
    border-radius: 0px;
}

.navigate-sk4y::after {
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    right: -13px;
    border-style: solid;
    border-width: 20px 0 20px 13px;
    border-color: transparent #0d97df;
    z-index: 10;
}

.navigate-sk4y.now::after {
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    right: -13px;
    border-style: solid;
    border-width: 20px 0 20px 13px;
    border-color: transparent #F2F7FB;
    z-index: 10;
}

.navigate-sk4y.bf::before {
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    right: -14.5px;
    border-style: solid;
    border-width: 20px 0 20px 13px;
    border-color: transparent #fff;
    z-index: 10;
}

.navigate-sk4y:hover {
    font-weight: 500;
}

/* ------ end navigate ------- */

.btn-st-study-sk4y {
    width: 100%;
    /* max-width: 368px; */
    height: 56px;
    background: #ff7d37;
    border-radius: 100px;
    color: #fff;
    border: none;
    box-shadow: 0px 8px 28px -6px rgba(0, 0, 0, 0.12), 0px 18px 88px -4px rgba(0, 0, 0, 0.14);
}

.btn-st-study-sk4y:hover,
.btn-enroll-sk4y:hover {
    background: #ff6919;
    color: #fff;
}


.text-hv-stem:hover {
    color: #0d97df;
    ;
}

.course-card-hv-stem {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card-hv-stem:hover {
    box-shadow: 2px 4px 14px rgb(186 236 255 / 50%) !important;
    transform: translateY(-6px);
    box-shadow: 0px 10px 20px rgba(0, 0, 0, 0.12);
}

.course-card-hv-stem:active {
    border: 1px solid #0d97df !important;
}