html,
body,
div,
a,
img {
    padding: 0;
    border: none;
    margin: 0;
    box-sizing: border-box;
}

html,
body,
.page {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

img {
    display: block;
    width: 100%;
}

.page {
    max-width: 550px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    position: relative;
}

.main {
    width: 100%;
    flex: 1;
    overflow-y: auto;
}

.main::-webkit-scrollbar {
    display: none;
}

.footer,
.abcs {
    width: 100%;
    aspect-ratio: 750/137;
}

.footer {
    position: absolute;
    left: 0;
    bottom: 0;
}

.service_btn {
    width: 20%;
    position: absolute;
    right: 1%;
    top: 50%;
}