* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    height: 100%;
    margin: 0;
    font-family: Arial, sans-serif;
}

.fullscreen-image-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.fullscreen-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; /* 保持图片比例，填充整个容器 */
    object-position: center; /* 图片居中显示 */
}