/* 提示框样式 */
.toast {
    display: none; /* 默认隐藏 */
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    text-align: center;
    z-index: 1000;
    font-size: 50px;
    white-space: nowrap;
    max-width: 90vw;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 显示动画 */
.toast.show {
    display: block;
    animation: fadeIn 0.3s forwards;
}

/* 隐藏动画 */
.toast.hide {
    animation: fadeOut 0.3s forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}