* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    height: 100vh;
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: "Microsoft YaHei", Arial, sans-serif;
}

.container {
    width: 380px;
    padding: 25px;
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255,255,255,0.25);
    backdrop-filter: blur(12px);
    color: #fff;
    text-align: center;
}

h2 {
    font-size: 26px;
    margin-bottom: 20px;
}

input {
    width: 100%;
    padding: 12px 14px;
    margin: 12px 0;
    border-radius: 10px;
    border: none;
    outline: none;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    background: #005bffcc;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    color: #fff;
    cursor: pointer;
}

button:hover {
    background: #0047d9cc;
}

.hint {
    margin-top: 10px;
    color: #eee;
}

.hint a {
    color: #fff;
    text-decoration: underline;
}