body {
    font-family: "Microsoft JhengHei", sans-serif;
    background: #eef5ff;
    margin: 0;
}

.container {
    max-width: 600px;
    margin: auto;
    padding: 20px;
}

h1 {
    text-align: center;
}

#chatBox {
    height: 400px;
    background: white;
    border-radius: 10px;
    padding: 10px;
    overflow-y: auto;
    margin-bottom: 10px;
}

.message {
    margin: 5px 0;
    padding: 8px;
    border-radius: 8px;
}

.user {
    background: #cce5ff;
    text-align: right;
}

.bot {
    background: #e2e2e2;
}

.input-area {
    display: flex;
}

input {
    flex: 1;
    padding: 10px;
}

button {
    padding: 10px;
    cursor: pointer;
}

.suggestions {
    margin-bottom: 10px;
}

.suggestions button {
    margin: 3px;
    background: #fff;
    border: 1px solid #ccc;
}