@media screen and (max-width: 800px) {
    .main-layout {
        flex-direction: column;
        height: calc(100vh - (var(--footer-height, 32px) + 68px));
        min-height: 0;
        padding: 10px;
        overflow: hidden;
    }

    .left-panel {
        display: none; /* 移动端默认只展示右侧，配合 Switch 按钮切换 */
        width: 100%;
        height: 100%;
        flex: 0 0 auto;
        padding: 15px;
    }

    .right-panel {
        width: 100%;
        height: 100%;
        flex: 1;
        padding: 15px;
        padding-bottom: calc(var(--footer-height, 32px) + 120px);
    }

    .logo {
        font-size: 8.7vw;
        margin: 10px 0;
    }

    /* 移动端同样避免横向裁切 */
    .logo {
        white-space: nowrap;
        overflow: visible;
        max-width: 100%;
    }

    .intro {
        padding: 20px;
        margin-bottom: 20px;
    }

    .left-avatar {
        width: 70px;
        height: 70px;
        margin-bottom: 10px;
    }

    .intro h3 {
        font-size: 5vw;
    }

    .intro li {
        font-size: 4vw;
    }

    .intro a {
        font-size: 4vw;
        padding: 8px 12px;
    }

    .datetime {
        text-align: center;
        margin-bottom: 20px;
    }

    .time {
        font-size: 15vw;
    }

    .date {
        font-size: 5vw;
    }

    .future-content {
        width: 100%;
        height: 120px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    #tanChiShe {
        width: 100%;
        height: 100%;
        object-fit: contain;
    }

    .left-panel {
        display: none;
        width: 100%;
        height: 100%;
        flex: 0 0 auto;
        padding: 140px 15px 15px;
        transition: transform 0.3s ease;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .right-panel {
        width: 100%;
        height: 100%;
        flex: 1;
        padding: 140px 15px calc(var(--footer-height, 32px) + 120px) 15px;
        transition: transform 0.3s ease;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .chat-container {
        bottom: calc(var(--footer-height, 32px) + 16px);
    }

    .chat-box {
        width: 95%;
        padding: 15px;
    }

    .input-row {
        width: 95%;
        gap: 10px;
    }

    #userInput {
        padding: 10px 14px;
        font-size: 14px;
    }

    button {
        padding: 10px 16px;
        font-size: 14px;
    }

    .message {
        padding: 10px 14px;
        max-width: 90%;
    }

    .projectItem {
        width: 100%;
    }

    .section-title {
        font-size: 22px;
    }

    /* 隐藏移动端滚动条 */
    .left-panel::-webkit-scrollbar,
    .right-panel::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    .left-panel,
    .right-panel {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }
}