.filter-ctn .row1 .left{
    width: 200px;
}

.filter-ctn{
    box-shadow: none;
}

.main .wrapper{
    padding-top: 0;
}

.filter-ctn .row1{
    padding-top: 60px;
}

.filter{
    box-shadow: 0 2px 4px rgba(0, 0, 0, .08);
    position: relative;
}

.lesson-title{
    padding-left: 0;
}

.desc{
    font-size: 16px;
    line-height: 24px;
}

.achievement{
    margin-bottom: 60px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.achievement::before{
    background: linear-gradient(to right, rgb(255, 25, 25) 60px, rgb(97, 97, 97) 60px, rgb(97, 97, 97) 120px,  rgb(189, 189, 189) 120px, rgb(189, 189, 189) 180px,  #F0F0F0 180px);
}

.ach-header{
    background-color: #fff;
    padding: 40px;
    position: relative;
    cursor: pointer;
    transition: .3s;
}

.achievement.active .ach-header{
    background-color: #e6e6e6;
}

.ach-header:hover,
.achievement.active .ach-header:hover{
    background-color: rgb(241, 241, 241);
}

.ach-header .arr{
    position: absolute;
    right: 30px;
    bottom: 30px;

    width: 35px;
    height: 35px;
    transition: .4s;
    transform: rotate(90deg);
}

.active .ach-header .arr{
    transform: rotate(-90deg);
}

.ach-header .line1{
    font-size: 24px;
    font-weight: bold;
}

.ach-header .line2{
    font-size: 16px;
    line-height: 24px;
    margin-top: 10px;
}

.achievement .red{
    color: rgb(255, 25, 25);
}

.ach-panel{
    display: none;
    background-color: #fff;
    padding-bottom: 100px;
    padding-left: clamp(30px, calc(4.6875vw - 15px), 75px);
    padding-right: clamp(30px, calc(4.6875vw - 15px), 75px);
    position: relative;
}

.achievement .btn-enquire{
    position: absolute;
    right: 0;
    bottom: 0;
    height: 60px;
    width: 300px;
}

.ach-p{
    padding-top: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgb(196, 196, 196);
}

.ach-p:last-of-type{
    border-bottom: none;
}

.ach-p .title{
    font-size: 24px;
    display: flex;
    align-items: center;
    color: rgb(255, 25, 25);
    font-weight: bold;
    margin-bottom: 20px;
}

.ach-p .icon{
    height: 45px;
    width: auto;
    margin-right: 12px;
}

.ach-p .icon img{
    display: block;
    width: auto;
    height: 100%;
}

.ach-p .hint{
    color: #666;
    margin-top: 4px;
    font-size: 14px;
}

.ach-p .arr-up{
    width: 25px;
    height: 25px;
    vertical-align: middle;
    margin-top: -5px;
}

.achievement .split{
    display: flex;
    justify-content: space-between;
}

.split .left,
.split .right{
    width: 48%;
    flex: 0 0 auto;
}

.split .narrow{
    width: 33%;
}

.ach-p .split{
    margin-top: 20px;
}

.achievement .left>img,
.achievement .right>img,
.achievement .left picture,
.achievement .right picture,
.achievement .left picture>img,
.achievement .right picture>img{
    display: block;
    width: 100%;
    height: auto;
}

.pc-only, .mobile-only{
    display: none;
}

@media (max-width: 750px) {
    .mobile-only{
        display: block;
    }
}

@media (min-width: 751px) {
    .pc-only{
        display: block;
    }
}

.achievement video{
    width: 100%;
    height: auto;
}

.ach-5  .left{
    width: 44%;
}

.ach-5  .right{
    width: 54%;
}

.achievement .wide{
    width: 60%;
    flex: 0 0 auto;
}

.achievement .vid-ctn{
    width: clamp(320px, calc(4.1667vw + 280px), 360px);
    flex: 0 0 auto;
}

.vid-ctn .poster{
    aspect-ratio: 16/9;
    width: 100%;
    height: auto;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.vid-ctn .poster::after{
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0) 33%, rgba(0, 0, 0, .6) 100%);
    z-index: 210;
    transition: .3s;
    opacity: .8;
}

.vid-ctn .poster .play-hint{
    position: absolute;
    color: #fff;
    display: flex;
    align-items: center;
    z-index: 240;
    left: 15px;
    bottom: 15px;
    cursor: pointer;
    transition: .3s;
    transform-origin: right bottom;
}

.vid-ctn .poster:hover .play-hint{
    transform: scale(1.05);
}

.vid-ctn .poster:hover::after{
    opacity: 1;
}

.vid-ctn .poster img,
.vid-ctn .poster video{
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: .3s;
}

.vid-ctn .poster:hover img,
.vid-ctn .poster:hover video{
    transform: scale(1.04);
}

.vid-ctn .text{
    text-align: center;
    margin-top: 15px;
}

.play-hint i{
    width: 30px;
    height: 30px;
    margin-right: 6px;
    background: url("../images/cecc/icon_play_red.svg") center/contain no-repeat;
}

.lesson-ctn{
    background-color: rgba(250, 250, 250);
    padding-bottom: 100px;
}

.btn-ctn{
    display: flex;
    justify-content: center;
}

.btn-ctn:hover{
    text-decoration: none;
}

.btn-enquire{
    width: 400px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #fff;
    background-color: rgb(97, 97, 97);
}

.btn-enquire:hover{
    background-color: rgb(63, 63, 63);
}


.btn-enquire i{
    width: 35px;
    height: 40px;
    background: url("../images/cecc/icon_enquire.png") center/contain no-repeat;
    margin-right: 28px;
}

.pic-title{
    font-weight: bold;
    margin-top: 40px;
    margin-bottom: 20px;
}

.pic-list{
    display: flex;
    flex-wrap: wrap;
    column-gap: clamp(20px, calc(1.0417vw + 10px), 30px);
    row-gap: 10px;
}

.pic-list .pic{
    width: calc((100% - clamp(40px, calc(2.0833vw + 20px), 60px)) / 3);
    flex: 0 0 auto;
}

.pic-list .pic img{
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16/10;
    object-fit: contain;
    background-color: rgb(96,96,224);
}

.pic-list .pic .text{
    text-align: center;
    margin-top: 6px;
}

@media (min-width: 961px) {
    .left.narrow .desc{
        width: 200%;
    }
    .right.wide{
        margin-top: 170px;
    }
}

@media (max-width: 960px) {

    .achievement .split{
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .ach-panel{
        padding-left: 20px;
        padding-right: 20px;
        padding-bottom: 80px;
    }

    .ach-p{
        padding-top: 40px;
        padding-bottom: 40px;
    }

    .achievement .split .left,
    .achievement .split .right,
    .achievement .split .wide,
    .ach-5 .left,
    .ach-5 .right{
        width: clamp(670px, calc(38.0952vw + 384.2857px), 750px);
    }

    .achievement .split .narrow{
        width: clamp(540px, calc(6.25vw + 480px), 600px);
    }

    .ach-header{
        padding: 20px;
    }

    .ach-header .line1{
        font-size: 20px;
    }

    .pic-list{
        column-gap: 20px;
    }

    .pic-list .pic{
        width: calc(50% - 10px);
    }

    .pic-list .pic:nth-of-type(3){
        margin-right: 20px;
        margin-bottom: 20px;
    }

    .achievement{
        margin-bottom: 30px;
    }

}


@media (max-width: 750px) {
    .achievement .split .left,
    .achievement .split .right,
    .achievement .split .wide,
    .ach-5 .left,
    .ach-5 .right{
        width: 100%;
    }

    .achievement .split .narrow{
        width: 100%;
        align-self: center;
    }


    .ach-header .arr{
        display: none;
    }

    .filter-ctn{
        margin-top: 0;
    }

    .row1-mobile{
        box-shadow: none;
    }


    .filter-ctn .right .option{
        height: auto;
        padding-top: 6px;
        padding-bottom: 6px;
    }

    .btn-fold-mobile{
        background-color: rgb(250, 250, 250);
    }

    .filter-ctn.wrapper{
        padding-left: 0;
        padding-right: 0;
    }

    .ach-p{
        padding-top: 20px;
        padding-bottom: 20px;
    }
    .ach-p .title{
        font-size: 20px;
    }

    .ach-p .icon{
        width: auto;
        height: 32px;
    }

    .achievement{
        margin-bottom: 20px;
    }

    .pic-list .pic:nth-of-type(3) {
        margin-right: 0px;
    }

    .pic-list{
        flex-direction: column;
    }

    .pic-list .pic{
        width: 100%;
    }


    .btn-enquire i{
        width: 28px;
        height: 32px;
        margin-right: 20px;
    }

    .btn-enquire{
        height: 60px;
        width: 100%;
    }

    .achievement .btn-enquire{
        height: 50px;
        width: 240px;
    }

    .lesson-ctn{
        padding-bottom: 40px;
    }
}