body {
            background-image: url('../bg.jpg');  /* 替换为你的图片路径 */
            background-size: cover;                  /* 覆盖整个屏幕 */
            background-position: center;             /* 图片居中显示 */
            background-repeat: no-repeat;            /* 禁止重复 */
            background-attachment: fixed;             /* 固定背景（可选） */
            
            /* 备用背景色（图片加载失败时显示） */
            background-color: #f0f0f0;
            
            /* 可选：添加背景叠加层 */
            /* position: relative; */
        }

        /* 如果需要文字等内容在背景图上显示 */
        .content {
            position: relative;
            z-index: 1;
            color: white;
            padding: 20px;
        }

        /* 可选：半透明遮罩层 */
        /* .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.3);
            z-index: 0;
        } */
	
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .carousel-container {
            width: 100%;
            height: 260px;
            position: relative;
            overflow: hidden;
			margin-left: auto;
  margin-right: auto;
  padding-bottom: 10px;
			
        }

        .carousel-track {
            display: flex;
            height: 100%;
            transition: transform 0.5s ease-in-out;
        }

        .carousel-item {
            min-width: 100%;
            height: 100%;
            position: relative;
        }

        .carousel-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 导航按钮 */
        .carousel-button {
            position: absolute;
            top: 40%;
            transform: translateY(-50%);
            background: rgba(0,0,0,0.5);
            color: white;
            padding: 10px;
            border: none;
            cursor: pointer;
            font-size: 20px;
        }

        .prev {
            left: 10px;
        }

        .next {
            right: 10px;
        }

        /* 分页指示器 */
        .carousel-pagination {
            position: absolute;
         bottom: 1.5em;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 8px;
        }

        .pagination-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255,255,255,0.5);
            border: none;
            cursor: pointer;
        }

        .pagination-dot.active {
            background: #0c5df7;
        }

        /* 响应式设计 */
        @media (min-width: 320px) {
            .carousel-container {
                /*height: 400px;*/
            }
        }

        @media (min-width: 424px) {
            .carousel-container {
                height: 500px;
            }
        }
		
		        /* 外层容器 */
        .container {
            max-width:100%;
            margin: 0 auto;
            padding: 0 10px;
            margin-top: 2em;
        }

        /* 图片网格 */
        .image-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px; /* 统一间距 */
        }

        /* 图片项 */
        .image-item {
            flex: 1 1 calc(50% - 10px); /* 两列计算 */
            position: relative;
            overflow: hidden;
            border-radius: 8px; /* 可选圆角 */
            box-shadow: 0 2px 8px rgba(0,0,0,0.1); /* 可选阴影 */
        }

        /* 1:1比例实现 */
        .image-item::before {
            content: '';
            display: block;
            padding-top: 100%; /* 关键比例控制 */background-color: yellowgreen;
        }

        /* 图片样式 */
        .image-item img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover; /* 保持比例裁剪 */
        }

        /* 移动端适配 */
        @media (max-width: 328px) {
            .container {
                padding: 0 10px;
            }
            .image-item {
                flex-basis: 100%; /* 手机端单列显示 */
            }
        }
		
		
		   /* 底部导航容器 */
        .bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height:50px; /* 导航栏高度 */
            background: #fff;
            box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
            z-index: 1000;
        }

        /* 导航菜单列表 */
        .nav-list {
            display: flex;
            height: 100%;
            padding: 0;
            margin: 0;
            list-style: none;
        }

        /* 单个菜单项 */
        .nav-item {
            flex: 1;
            text-align: center;
        }

        /* 菜单链接样式 */
        .nav-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            text-decoration: none;
            color: #666;
            transition: all 0.3s ease;
        }

        /* 图标样式 */
        .nav-icon {
            font-size: 1em;
            margin-bottom: 4px;
        }

        /* 文字标签 */
        .nav-text {
            font-size: 1em;
            transform: scale(0.9);
        }

        /* 激活状态样式 */
        .nav-link.active {
            color: #007bff;
        }

        /* 点击反馈 */
        .nav-link:active {
            opacity: 0.7;
        }

        /* 适配全面屏手机 */
        @media (max-width: 325px) {
            .nav-text {
                font-size: 0.2em;
            }
            .nav-icon {
                font-size: 0.4em;
            }
        }