* {
    padding: 0;
    border: none;
    margin: 0;
    box-sizing: border-box;
}

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

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

.page {
    max-width: 550px;
    margin: 0 auto;
    background: #0c0c0c;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

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


.page .mian::-webkit-scrollbar {
    display: none;
}

.service_btn {
    width: 1.5rem;
    position: absolute;
    right: 0%;
    top: 50%;
}