/* 按鈕閃光 S */
.light {
    width: 100%;
    text-align: center;
    font-size: 2rem;
    overflow: hidden;
    display: block;
    position: relative;
}

.light:after {
    content: "";
    display: block;
    position: absolute;
    left: -150%;
    top: 0;
    width: 50%;
    height: 100%;
    background: -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.7) 100%);
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.7) 100%);
    -webkit-transform: skewX(-25deg);
    transform: skewX(-25deg);
    animation: light 3s infinite ease-in-out;
}

@keyframes light {
    0% {
        left: -150%;
    }

    70% {
        left: 150%;
    }

    100% {
        left: 150%;
    }
}

/* 按鈕閃光 S */

/* 按鈕跳動-果凍 */
.bounce {
    animation: bounce 2s infinite ease-in-out;
}

@keyframes bounce {
    0% {
        transform: scale(1, 1) translate3d(0, 0, 0);
    }

    10% {
        transform: scale(1.05, .95) translate3d(0, 0, 0);
    }

    30% {
        transform: scale(.95, 1.05) translate3d(0, -8%, 0);
    }

    50% {
        transform: scale(1.02, .97) translate3d(0, 0, 0);
    }

    57% {
        transform: scale(1, 1) translate3d(0, -2%, 0);
    }

    64% {
        transform: scale(1, 1) translate3d(0, 0, 0);
    }

    100% {
        transform: scale(1, 1) translate3d(0, 0, 0);
    }
}

.df {
    display: flex;
    /* gap: 5%; */
    max-width: 1000px;
    width: 100%;
}

.df img {
    width: 25%;
}

.df img:nth-child(1),
.df img:nth-child(3) {
    transform: translateY(-5%);
}

.df img:nth-child(2),
.df img:nth-child(4) {
    transform: translateY(5%);
}

.run1 {
    transform: translateX(100%);
    animation: run 12s infinite linear;
}

.run2 {
    /*讓第2段輪播接續在第一段後面*/
    top: 0;
    transform: translateX(100%);
    /*延遲一半的時鮮開始執行動畫 讓畫面看起來像跑馬燈*/
    animation: run 12s 6s infinite linear;
}


/*這裡形成總共走了200%*/
@keyframes run {
    0% {
        transform: translateX(100%);
    }

    100% {
        transform: translateX(-100%);
    }
}


@keyframes arrowUP {

    0%,
    100% {
        transform: translateY(0%);
    }

    50% {
        transform: translateY(-2%);
    }
}

@keyframes arrowUP_light {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}
@keyframes scale {
    0%,
    100% {
        transform: scale(1,1);
    }

    50% {
        transform: scale(1.1,1.1);
    } 
}