.ai_logo {
    position: fixed;
    top: 500px;
    right: 10px;
}
.ai_box{
    width: 450px;
    height: 480px;
    background-color: #f1f1f1;
    position: fixed;
    top: 0;
    right: -450px;
    transition: right 0.3s;
    z-index: 1000;
}
#chat-container {
    width: 100%;
    height: 430px;
    overflow-y: auto; /* 让超出部分自动滑动 */
}
.chat-messages {
    margin-bottom: 20px;
    overflow-y: auto;
    max-height: 300px;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.chat-input {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 10px;
}
.user-input {
    flex: 1;
    padding: 8px;
    border: none;
    border-radius: 5px;
    margin-right: 10px;
}
.send-button {
    padding: 8px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.message {
    padding: 8px 12px;
    margin: 5px 0;
    border-radius: 5px;
}
.user-msg {
    background-color: #d3f7f4;
    text-align: right;
}
.bot-msg {
    background-color: #f0f0f0;
}
.send_div{
    position: sticky;
    width: 100%;
    background-color: lightblue;
    padding: 10px;
}