.top {
    overflow: auto;
    margin: auto;
    width: 390px;
}
.top img {
    position: fixed;
    width: 390px;
    z-index: 10;
    margin: auto;
}
.login-box {
    color: #fff;
    margin-top: 47%;
    width: 100%;
    text-align: center;
}
.input {
    width: 76%;
    margin-left: 12%;
    text-align: left;
    margin-bottom: 10px;
}
.input label {
    height: 30px;
    line-height: 30px;
    font-size: 16px;
}
input {
    width: 100%;
    height: 30px;
    text-indent: 25px;
    background:
            linear-gradient(135deg, transparent 0%, #fff 0),
            linear-gradient(225deg, transparent 10px, #fff 0),
            linear-gradient(315deg, transparent 0%, #fff 0),
            linear-gradient(45deg, transparent 10px, #fff 0);
    background-size: 53% 53%;
    background-position: top left, top right, bottom right, bottom left;
    background-repeat: no-repeat;
    filter: drop-shadow(0 5px 12px rgba(0, 0, 0, 0.45));
    border: none;
}
input::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    height: 100%;
    background: #fff; /* 与背景同色 */
    z-index: 1;
}
.login-button-box {
    width: 80%;
    margin-left: 10%;
    text-align: right;
    margin-top: 30px;
}
.login-button {
    width: 85px;
    height: auto;
    border: none;
    background: transparent;
}
.login-button img {
    width: 100%;
}
.login-title {
    margin-bottom: 30px;
    font-size: 27px;
}
.page {
    background-size: cover;
    overflow: auto;
    height: 100vh;
    position: relative;
    background-position: center center;
    padding: 0;
}