.custom-form-container {
    width: 100%;
    max-width: 300px;
    background-color: #ffffff;
    padding: 5px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    margin: 5px auto;
}

input[type="number"],
input[type="text"] {
    font-size: 16px; /* iPhone�Y�[���h�~ */
    width: 100%;
    box-sizing: border-box;
    max-width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

input:focus {
    outline: none;
    border-color: #007BFF;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}

button {
    padding: 5px 10px;
    font-size: 11px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #007BFF;
    color: white;
}

button:hover {
    background-color: #0056b3;
}