body {
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

.chat-container {
    width: 400px;
    height: 600px;
    background-color: #ffffff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.messages {
    flex-grow: 1;
    padding: 10px;
    overflow-y: auto;
}

.input-form {
    display: flex;
    padding: 10px;
    border-top: 1px solid #f0f0f0;
}

.input-text {
    flex-grow: 1;
    border: none;
    padding: 10px;
    border-radius: 5px;
}

.send-button {
    background-color: #1e88e5;
    color: #ffffff;
    padding: 10px;
    margin-left: 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

/* 返信用*/

.message {
    margin-bottom: 10px;
    line-height: 1.5;
}

.user {
    text-align: right;
    color: #1e88e5;
}

.gpt {
    text-align: left;
    color: #333;
}