.nya-chat-bubble {
    position: relative;
    padding: 50px 20px;
    border-radius: 30px;
    margin-bottom: 10px;
    display: inline-block;
    max-width: 50%;
    flex: 1;
    vertical-align: top;
    font-size: 1.2rem;
}

    .nya-chat-bubble.received {
        background-color: #FFF;
        align-self: flex-end;
        margin-left: 20px;
        z-index:999;
    }

        .nya-chat-bubble.received::before {
            content: "";
            position: absolute;
            top: 60%;
            left: -25px;
            margin-top: -12px;
            border: 12px solid transparent;
            border-right: 12px solid #FFF;
            z-index: 2;
        }

        .nya-chat-bubble.received::after {
            content: "";
            position: absolute;
            top: 60%;
            left: -26px;
            margin-top: -14px;
            border: 14px solid transparent;
            border-right: 14px solid #FFF;
            z-index: 1;
        }

    .nya-chat-bubble.sent {
        background-color: #FFF;
        align-self: flex-end;
        margin-right: 20px;
        z-index: 999;
    }

        .nya-chat-bubble.sent::before {
            content: "";
            position: absolute;
            top: 60%;
            right: -25px;
            margin-top: -12px;
            border: 12px solid transparent;
            border-left: 12px solid #FFF;
            z-index: 2;
        }

        .nya-chat-bubble.sent::after {
            content: "";
            position: absolute;
            top: 60%;
            right: -26px;
            margin-top: -14px;
            border: 14px solid transparent;
            border-left: 14px solid #FFF;
            z-index: 1;
        }

.nya-chat-avatar {
    width: 160px;
    height: auto;
    border-radius: 50%;
    background-color: #FFF;
    border: 2px solid #FFF;
    padding: 10px;
    flex: 0 0 160px; /* 固定宽度 */
    z-index:999;
    /* margin-right: 10px;
    vertical-align: top;*/
}

.nya-chat-message {
    display: flex;
    align-items: flex-start;
}

    .nya-chat-message.sent {
        justify-content: flex-end;
    }

        .nya-chat-message.sent .nya-chat-avatar {
            margin-right: 0;
            margin-left: 10px;
        }

@media screen and (max-width: 820px) {
    .nya-chat-bubble {
        padding: 20px 5px;
        max-width: 90%;
        border-radius: 15px;
    }
}

@media screen and (max-width: 767px) {
    .nya-chat-avatar {
        width: 120px;
        height: auto;
        flex: 0 0 100px; /* 固定宽度 */
    }

        .nya-chat-bubble.received {
            margin-left: 10px;
        }

        .nya-chat-bubble.sent {
            margin-right: 10px;
        }
}

@media screen and (max-width: 480px) {
    .nya-chat-bubble {
        padding: 10px 3px;
        max-width: 95%;
        border-radius: 10px;
        font-size: 1.1rem;
    }

    .nya-chat-avatar {
        width: 95px;
        height: auto;
        flex: 0 0 80px; /* 固定宽度 */
    }

    .nya-chat-bubble.received {
        margin-left: 3px;
    }

    .nya-chat-bubble.sent {
        margin-right: 3px;
    }
}