body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: url('bj.jpg') no-repeat center center fixed;
    background-size: cover;
}

.container {
    width: 400px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.form-container {
    text-align: center;
}

.form-toggle button {
    width: 50%;
    padding: 10px;
    cursor: pointer;
    border: none;
    background: rgba(0, 0, 0, 0.2);
    color: white;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: 15px;
    transition: background 0.3s;
}

.form-toggle button.active {
    background: rgba(0, 123, 255, 0.6);
}

.form-toggle button:hover {
    background: rgba(0, 123, 255, 0.8);
}

.form {
    display: none;
    margin-top: 20px;
}

.form input {
    width: calc(100% - 20px);
    padding: 10px;
    margin: 10px 0;
    border: 1px solid rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.1);
    color: black;
    border-radius: 10px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.form input::placeholder {
    color: black;
}

.form button {
    width: calc(100% - 20px);
    padding: 10px;
    margin: 10px 0;
    border: none;
    background: rgba(0, 123, 255, 0.6);
    color: white;
    cursor: pointer;
    border-radius: 10px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    transition: background 0.3s;
}

.form button:hover {
    background: rgba(0, 123, 255, 0.8);
}
