/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

/* 导航栏样式 */
nav {
    background-color: #333;
    color: white;
    padding: 10px;
}
     /* 链接样式 */
      .link {
            color: white;
            text-decoration: none;
        }
nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: space-around;
}

nav ul li {
    cursor: pointer;
}

/* 页面容器样式 */
.page-container {
    padding: 20px;
    margin: 20px;
    background-color: white;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

/* 首页样式 */
.home-page {
    text-align: center;
}

.home-page h1 {
    color: #333;
}

/* 轮播图容器样式 */
.carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin: 10px 0;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

/* 轮播图图片样式 */
.carousel img {
    width: 100%;
    height: auto;
    display: none;
}

.carousel img:first-child {
    display: block;
}

/* 轮播图切换按钮样式 */
.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    z-index: 1;
}

.carousel-button.prev {
    left: 10px;
}

.carousel-button.next {
    right: 10px;
}

/* 弹出框样式（用于显示介绍内容） */
.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border: 1px solid #ccc;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    max-width: 80%;
    max-height: 80%;
    overflow: auto;
}

/* 弹出框关闭按钮样式 */
.popup-close {
    cursor: pointer;
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 20px;
}