/* ------------------------------------------
        核心CSS样式: 自主编写，无第三方依赖
        遵循移动端优先设计，确保响应式布局和快速加载
        ------------------------------------------
        */

        :root {
            --primary-color: #0056b3; /* 享宁品牌主色 */
            --secondary-color: #f0f8ff; /* 辅助色 (恢复到更亮的辅助色) */
            --text-color: #333;
            --light-text-color: #666;
            --border-color: #ddd; /* 恢复到更明显的边框色 */
            --shadow-color: rgba(0, 0, 0, 0.1); /* 恢复到默认阴影 */
            --breakpoint-sm: 600px;
            --breakpoint-md: 900px;
        }

        /* 全局重置与基础样式 */
        body {
            font-family: 'Inter', sans-serif; /* 假设Inter字体可用，或退回到系统默认 */
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            color: var(--text-color);
            line-height: 1.6;
            /*background-color: #f9fbfd;*/
            overflow-x: hidden; /* 防止水平滚动条 */
        }

        *, *::before, *::after {
            box-sizing: inherit;
        }

        a {
            color: var(--primary-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        a:hover {
            color: #003d80;
        }

        h1, h2, h3, h4, h5, h6 {
            /*color: var(--primary-color);*/
            margin-top: 1em;
            margin-bottom: 0.5em;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block; /* 移除图片底部空白 */
            border-radius: 8px; /* 圆角效果 */
        }

        button {
            padding: 12px 25px;
            background-color: var(--primary-color);
            color: #fff;
            border: none;
            border-radius: 25px; /* 圆角按钮 */
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s ease, transform 0.2s ease;
            box-shadow: 0 4px 8px var(--shadow-color);
        }

        button:hover {
            background-color: #003d80;
            transform: translateY(-2px);
        }

        /* 布局容器 */
        .case-study-container { /* Changed from .container */
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            max-width: 100%;
        }

        /* ------------------------------------------
        案例列表页样式 - 核心展示区域
        ------------------------------------------
        */
        .case-list-section {
            padding: 40px 0; /* 增加整体区段的垂直内边距 */
            background-color: #f9fbfd;
        }

        .case-list-header {
            text-align: center;
            margin-bottom: 40px;
            padding-top: 20px; /* 顶部留白 */
        }

        .case-list-header h1 {
            font-size: 2.8rem;
            margin-bottom: 10px;
            color: var(--primary-color);
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.05);
        }

        .case-list-header p {
            font-size: 1.1rem;
            color: var(--light-text-color);
            max-width: 800px;
            margin: 0 auto;
        }

        /* 顶部横向分类导航 */
        .category-navigation {
            display: flex;
            justify-content: center; /* 水平居中 */
            flex-wrap: wrap; /* 允许换行 */
            gap: 15px; /* 按钮间距 */
            margin-bottom: 50px; /* 导航下方留白 */
            border-bottom: 1px solid var(--border-color); /* 底部线条分隔 */
            padding-bottom: 20px;
            position: relative; /* 确保子菜单定位正确 */
        }

        .category-navigation .category-link {
            padding: 12px 25px; /* 增大点击区域和视觉填充 */
            border: 1px solid var(--border-color);
            border-radius: 30px; /* 更圆润的标签形状 */
            transition: all 0.3s ease;
            background-color: #fff;
            color: var(--text-color);
            font-size: 1rem;
            font-weight: 500;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05); /* 轻微阴影 */
            text-transform: uppercase; /* 文本大写，增加专业感 */
            letter-spacing: 0.5px;
            cursor: pointer;
            text-align: center; /* 文本居中 */
            display: inline-block; /* 确保按钮行为 */
        }

        .category-navigation .category-link:hover {
            background-color: var(--secondary-color); /* 悬停背景色 */
            color: var(--primary-color);
            border-color: var(--primary-color);
            transform: translateY(-2px); /* 悬停微动效果 */
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        }

        .category-navigation .category-link.active {
            background-color: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
            font-weight: bold;
            transform: none; /* 移除激活时的位移，回到原始位置 */
        }

        /* 用于包裹所有分类案例内容的容器 */
        #all-category-content-sections {
            /* 只作为逻辑分组，不影响布局 */
        }

        /* 每个分类案例列表的容器 */
        .category-content-grid {
            display: none; /* 默认隐藏所有分类的网格 */
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 35px;
            min-height: 500px; /* 确保内容不足时页面高度不变 */
            animation: fadeIn 0.5s ease-out; /* 添加淡入动画 */
        }

        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .category-content-grid.active {
            display: grid; /* 激活时显示为网格布局 */
        }

        .case-card {
            background-color: #fff;
            border-radius: 12px;
            box-shadow: 0 6px 20px var(--shadow-color);
            overflow: hidden;
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }

        .case-card-image {
            width: 100%;
            height: 240px;
            overflow: hidden;
            position: relative;
        }

        .case-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .case-card:hover .case-card-image img {
            transform: scale(1.08);
        }

        .case-card-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .case-card-content h3 {
            font-size: 1.6rem;
            margin-top: 0;
            margin-bottom: 12px;
            color: var(--primary-color);
            line-height: 1.3;
        }

        .case-card-content p {
            font-size: 1rem;
            color: color: #0c1218;;
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .case-card-content .result-highlight {
            font-weight: bold;
            color: green;
            margin-top: auto;
            padding-top: 15px;
            border-top: 1px dashed var(--border-color);
        }
        .case-card-content .result-highlight.pharma {
            color: #cc8400;
        }
        .case-card-content .result-highlight.logistics {
            color: #1e88e5;
        }

        .case-card-content .read-more {
            display: inline-block;
            margin-top: 20px;
            padding: 10px 20px;
            background-color: var(--primary-color);
            color: #fff;
            border-radius: 20px;
            font-weight: bold;
            transition: background-color 0.3s ease, transform 0.2s ease;
            text-align: center;
        }

        .case-card-content .read-more:hover {
            background-color: #003d80;
            transform: translateY(-2px);
        }

        /* ------------------------------------------
        Pagination (翻页)
        ------------------------------------------
        */
        .pagination-controls {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
            margin-top: 40px;
            padding: 20px 0;
        }

        .pagination-button {
            padding: 10px 15px;
            background-color: #fff;
            color: var(--primary-color);
            border: 1px solid var(--primary-color);
            border-radius: 5px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
        }

        .pagination-button:hover:not(.active):not(:disabled) {
            background-color: var(--secondary-color);
            color: var(--primary-color);
        }

        .pagination-button.active {
            background-color: var(--primary-color);
            color: #fff;
            cursor: default;
        }

        .pagination-button:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        /* ------------------------------------------
        媒体查询 - 响应式调整 (适用于所有屏幕尺寸的统一响应)
        ------------------------------------------
        */
        @media (max-width: var(--breakpoint-md)) {
            .case-study-container { /* Changed from .container */
                padding: 15px;
            }
            .case-list-header h1 {
                font-size: 2rem;
            }
            .case-list-header p {
                font-size: 1rem;
            }
            /* 顶部横向分类导航在中小屏幕下保持横向排列 */
            .category-navigation {
                flex-direction: row;
                justify-content: center;
                flex-wrap: wrap;
                gap: 10px;
                padding: 0 15px;
            }
            .category-navigation .category-link {
                padding: 8px 15px;
                font-size: 0.95rem; /* 字体略微缩小 */
                text-align: center;
                text-transform: none; /* 恢复正常大小写 */
                letter-spacing: normal;
                transform: none; /* 确保无位移 */
            }
            .category-navigation .category-link.active {
                box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); /* 激活状态阴影略微减弱 */
            }
            .category-navigation .category-link.active::before { /* 移除激活左侧指示条 */
                width: 0;
            }
            .case-grid {
                grid-template-columns: 1fr; /* 单列布局 */
            }
            .pagination-controls {
                flex-wrap: wrap;
                gap: 5px;
            }
            .pagination-button {
                padding: 8px 12px;
                font-size: 0.9rem;
            }
        }
/*翻页样式 */
.pagess {clear: both;margin: 20px;overflow: hidden;margin-left: 0px;text-align: center;font-size:12px}
.pagess ul li { display:inline-block;border: 1px solid #ccc;padding: 2px 9px;margin: 0 3px;line-height: 20px;background: #fff;color:#999}
.pagess ul li:hover{ background:#ccc; color:#fff;border: 1px solid #ccc}
.pagess ul li:hover a{color:#fff;}
.pagess ul li.thisclass {display: inline-block;border: 1px solid #ccc;padding: 2px 9px;margin: 0 3px;background: #ccc;color: #fff;}
.pagess ul li.thisclass a {color: #fff;}
.pagess ul li a{ display:block;color:#999}
.pagess ul li a:hover {color: #fff;}