/* 全局背景样式 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: url('../images/background.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.15; /* 设置透明度使背景不太明显 */
    pointer-events: none; /* 确保背景不会影响页面交互 */
}

/* 确保内容在背景之上 */
body {
    position: relative;
    background-color: transparent;
}

/* 增加内容区域的可读性 */
.content-wrapper {
    background-color: rgba(255, 255, 255, 0.9);
    position: relative;
    z-index: 1;
}