* {
    margin: 0;
}

html {
    font-size: calc(100vw / 7.5);
    /* 默认使用动态 rem 计算 */
}

/* 当屏幕宽度 >= 750px 时，固定 rem 字号为设计稿对应的基准值 */
/* 假设你的设计稿是以 750px 宽度为基础，1rem = 100px */
/* @media screen and (min-width: 750px) {
    html {
        font-size: 100px;
    }
} */

.wrap {
    width: 100%;
    max-width: 750px;
    min-height: 100vh;
    /*background: url('../image/bg.jpg') top center no-repeat;*/
    background-size: cover;
    margin: 0 auto;
}

.header {
    width: 100%;
}

.content {
    width: 100%;
}

.img {
    width: 100%;
    display: flex;
}

.img-box1 {
    width: 100%;
    position: relative;
}

.img-box3 {
    width: 100%;
    position: relative;
}

.img-box1-btn {
    position: absolute;
    bottom: 8%;
    left: 50%;
    transform: translate(-50%, 0%);
}

.img-update {
    position: absolute;
    right: 0.2rem;
    display: flex;
    width: 2.2rem;
    top: 30%;
    /* transform: translate(0, -50%); */
    animation: myfirst 1s infinite;
}

.footer {
    width: 100%;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 999;
}

.content-box {
    width: 100%;
}

.mySwiper {
    width: 100%;
}

.swiper-slide {
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
}

    .swiper-slide img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

.swiper-pagination {
    height: 55px;
}

.swiper-pagination-bullet {
    opacity: 1 !important;
    background: url('../image/D2.png') no-repeat center center !important;
    background-size: 100% 100% !important;
}

.swiper-pagination-bullet-active {
    background: url('../image/D.png') no-repeat center center !important;
    background-size: 100% 100% !important;
}

@-webkit-keyframes myfirst {
    from {
        transform: scale(1)
    }

    50% {
        transform: scale(.9)
    }

    to {
        transform: scale(1)
    }
}

@keyframes myfirst {
    from {
        transform: scale(1)
    }

    50% {
        transform: scale(.9)
    }

    to {
        transform: scale(1)
    }
}