body {
    font-family: Arial, sans-serif;
}
.slide-container {
    margin: 20px auto;
    max-width: 1000px;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    padding: 20px;
    border-radius: 8px;
}
.slide-element {
    padding: 10px;
    border-radius: 4px;
    border: none; /* 确保元素无边界 */
}
img {
    border: none; /* 确保图片无边界 */
}

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

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}