body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/index_background.webp');
    background-size: cover;
    font-family: Arial, sans-serif;
}

.main-content {
    text-align: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
}

.signup-container {
    position: absolute;
    right: 0;
    top: 0;
    width: 25%; /* 1/4 of the page width */
    height: 100%; /* Full page height */
    background-color: rgba(255, 255, 255, 0.8);
    padding: 20px;
    box-sizing: border-box; /* Ensures padding is included in the width */
    display: flex;
    flex-direction: column;
    justify-content: center; /* Centers the form vertically */
}

#signup-form {
    display: flex;
    flex-direction: column;
}

#signup-form input, #signup-form button {
    margin: 10px 0;
    padding: 10px;
}

#signup-form button {
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

#signup-form button:hover {
    background-color: #45a049;
}

#error-message {
    color: red;
    margin-top: 10px;
}

.signup-button:hover {
    background-color: #45a049;
}

.wechat-qr-code {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 64px;
    height: 64px;
}
.wechat-group-text {
    position: absolute;
    bottom: 80px;
    right: 20px;
    font-size: small;

}