/* 全局重置与基础样式 */  
        * { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: #333; background: #fff; line-height: 1.6; }
        
        /* 1. 页表头导航栏 */
        header {
            position: fixed; top: 0; left: 0; width: 100%; height: 72px;
            background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(12px);
            display: flex; align-items: center; justify-content: space-between;
            padding: 0 30px; z-index: 1000; 
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }
        .logo { 
            font-size: 22px; font-weight: 800; color: #111; letter-spacing: 1px; 
            text-transform: uppercase;
        }
        
        /* 导航栏居中 */
        nav {
            display: flex; align-items: center; justify-content: center;
            position: absolute; left: 750px; transform: translateX(-50%);
            gap: 20px; /* 科技风边框需要一定的间距 */
        }

        /* 科技感导航链接基础样式 */
        nav a {width: 100px;text-align: center;
            text-decoration: none; color: #666; font-size: 14px;
            font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
            padding: 8px 10px; position: relative;
            
            /* 核心：切角边框效果 */
            border: 1px solid rgba(0, 0, 0, 0.15);
            clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
            
            /* 切换动画过渡 */
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            background-color: transparent;
        }
        
        /* 鼠标移入：切换动画与高亮 */
        nav a:hover {
            color: #fff;
            background-color: #111;
            border-color: #111;
            transform: translateY(-1px); /* 轻微的悬浮感 */
        }

        /* 通用模块容器 & 左对齐标题装饰 */
        section { padding: 20px 50px; max-width: 1400px; margin: 0 auto; }
        .section-title { 
            font-size: 32px; font-weight: 700; margin-bottom: 40px; color: #111; 
            display: inline-block; position: relative; padding-left: 20px;
        }
        .section-title::before {
            content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
            width: 6px; height: 32px; background: #111; border-radius: 3px;
        }
        .section-title::after {
            content: ''; position: absolute; bottom: -10px; left: 20px;
            width: 60px; height: 3px; background: linear-gradient(to right, #111, transparent);
        }

        /* 2. 轮播模块 */
        #home { margin-top: 72px; padding: 0; max-width: 100%; height: 600px; overflow: hidden; position: relative; background: #eee; }
        .carousel-track { display: flex; width: 100%; height: 100%; transition: transform 0.5s ease; }
        .carousel-slide { min-width: 100%; height: 100%; background-size: cover; background-position: center; }

        /* 3. 新闻模块 */
        #news { 
            height: 400px; display: flex; flex-direction: column; justify-content: center; 
             max-width: 1400px; 
            /* padding: 80px 10%;  */
        }
        .news-cards { display: flex; gap: 30px; margin-top: 20px; }
        .news-card { 
            background: #fff; padding: 20px; border-radius: 8px; 
            box-shadow: 0 4px 15px rgba(0,0,0,0.05); width: 300px; text-align: left;
            transition: all 0.3s ease; cursor: pointer; border: 1px solid transparent;
        }
        .news-card:hover { 
            transform: translateY(-8px); 
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
            border-color: #ddd;
        }
        .news-card h3 { font-size: 18px; margin-bottom: 10px; color: #111; transition: color 0.3s ease;}
        .news-card p { font-size: 14px; color: #666; }
        .news-card:hover h3 { color: #000; }

        /* 4. 产品模块 */
        #products { 
            height: 400px; display: flex; flex-direction: column; justify-content: center; 
            max-width: 1400px; position: relative; overflow: hidden; background: #fff; 
            /* padding: 40px 10%; */
        }
        .product-grid { display: flex; gap: 15px; z-index: 2; height: 300px; width: 100%; }
        .product-item {
            flex: 1; border-radius: 12px; overflow: hidden; cursor: pointer;
            filter: brightness(90%); transition: all 0.4s ease; position: relative;            
        }
        .product-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
        .product-item:hover { filter: brightness(100%); transform: translateY(-5px); }

        /* 产品悬浮覆盖层 */
        .product-overlay {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background-size: cover; background-position: center;
            display: flex; flex-direction: column; justify-content: center; align-items: center;
            opacity: 0; visibility: hidden; transition: all 0.4s ease; z-index: 10;
        }
        .product-overlay.active { opacity: 1; visibility: visible; }
        .product-overlay::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0, 0, 0, 0.6); z-index: 1;
        }
        .product-overlay h2 { font-size: 48px; color: #fff; z-index: 2; margin-bottom: 15px; text-shadow: 0 2px 10px rgba(0,0,0,0.5);}
        .product-overlay p { font-size: 20px; color: rgba(255,255,255,0.9); z-index: 2; }

    
 /* 5. 案例模块 */
        #customer { 
            height: 400px; display: flex; flex-direction: column; justify-content: center; 
            max-width: 1400px; position: relative; overflow: hidden; background: #fff; 
            /* padding: 40px 10%; */
        }
        .customer-grid { display: flex; gap: 15px; z-index: 2; height: 300px; width: 100%; }
        .customer-item {
            flex: 1; border-radius: 12px; overflow: hidden; cursor: pointer;
            filter: brightness(90%); transition: all 0.4s ease; position: relative;            
        }
        .customer-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
        .customer-item:hover { filter: brightness(100%); transform: translateY(-5px); }

        /* 产品悬浮覆盖层 */
        .customer-overlay {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background-size: cover; background-position: center;
            display: flex; flex-direction: column; justify-content: center; align-items: center;
            opacity: 0; visibility: hidden; transition: all 0.4s ease; z-index: 10;
        }
        .customer-overlay.active { opacity: 1; visibility: visible; }
        .customer-overlay::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0, 0, 0, 0.6); z-index: 1;
        }
        .customer-overlay h2 { font-size: 48px; color: #fff; z-index: 2; margin-bottom: 15px; text-shadow: 0 2px 10px rgba(0,0,0,0.5);}
        .customer-overlay p { font-size: 20px; color: rgba(255,255,255,0.9); z-index: 2; }

        


        /* 5. 系统界面截图模块 */
        #system { background: #f4f7fa; max-width: 100%; padding: 80px 10%; }
        .sys-row { display: flex; align-items: center; margin-bottom: 60px; gap: 40px; }
        .sys-row img { width: 45%; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
        .sys-text { flex: 1; }
        .sys-text h3 { font-size: 28px; margin-bottom: 15px; color: #111; }
        .sys-text p { font-size: 16px; color: #555; line-height: 1.8; }
        .sys-row.reverse { flex-direction: row-reverse; }
        .sys-row.center { justify-content: center; text-align: center; flex-direction: column; align-items: center; }
        .sys-row.center img { width: 60%; margin-bottom: 30px; }
        .sys-row.center .sys-text { max-width: 800px; }

        /* 6. 合作与联系模块 */
        #contact { background: #111; color: #fff; max-width: 1400px; 
            /* padding: 80px 10%; */
        }
        #contact .section-title { color: #fff; }
        #contact .section-title::before { background: #fff; }
        #contact .section-title::after { background: linear-gradient(to right, #fff, transparent); }
        .contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; margin-top: 40px;}
        .partner-logo { background: rgba(255,255,255,0.08); padding: 30px; border-radius: 8px; text-align: center; font-size: 18px; color: #aaa; transition: background 0.3s;}
        .partner-logo:hover { background: rgba(255,255,255,0.15); }
        .contact-info p { margin-bottom: 15px; font-size: 16px; color: #ccc; }
        .moreClass{margin-left: 10px;font-size: 20px;color: darkgrey;    float: right;    margin-top: 20px;}
        a {
    text-decoration: none;  /* 去除下划线 */
    color: inherit;         /* 继承父元素文字颜色 */
    outline: none;          /* 去除点击时的轮廓线 */
}
/* ====== 新增：标语与理念模块 ====== */
        #slogan {
            background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 50%, #f8fafc 100%);
            max-width: 100%; padding: 100px 10%; text-align: center;
        }
        .slogan-grid {
            display: flex; justify-content: center; gap: 60px; margin-bottom: 80px;
        }
        .slogan-item {
            flex: 1; max-width: 350px; position: relative; padding: 30px;
            transition: transform 0.3s ease;
        }
        .slogan-item:hover { transform: translateY(-5px); }
        
        /* 背景大字英文装饰 */
        .slogan-item .bg-text {
            position: absolute; top: -20px; left: 50%; transform: translateX(-50%);
            font-size: 80px; font-weight: 900; color: rgba(16, 185, 129, 0.06);
            white-space: nowrap; z-index: 0; pointer-events: none; letter-spacing: -2px;
        }
        .slogan-item h3 {
            font-size: 24px; font-weight: 700; color: #10b981; margin-bottom: 10px;
            position: relative; z-index: 1;
        }
        .slogan-item p {
            font-size: 20px; font-weight: 600; color: #334155; line-height: 1.5;
            position: relative; z-index: 1;
        }

        /* 理念区域 */
        .concept-box {
            max-width: 900px; margin: 0 auto; padding: 50px; position: relative;
        }
        .concept-box::before, .concept-box::after {
            content: ''; position: absolute; left: 50%; transform: translateX(-50%);
            width: 100px; height: 2px; background: linear-gradient(to right, transparent, #10b981, transparent);
        }
        .concept-box::before { top: 0; }
        .concept-box::after { bottom: 0; }
        
        .concept-box h4 {
            font-size: 16px; font-weight: 600; color: #10b981; letter-spacing: 4px;
            text-transform: uppercase; margin-bottom: 25px;
        }
        .concept-box p {
            font-size: 18px; color: #475569; line-height: 2; font-weight: 400;
        }



        /* 
         * 悬浮容器 
         * 固定在右侧，垂直方向稍微偏下 (top: 60%)
         */
        .sidebar-float {
            position: fixed;
            right: 0;
            top: 70%; 
            transform: translateY(-50%); /* 垂直居中对齐锚点 */
            z-index: 9999;
            display: flex;
            flex-direction: column;
            gap: 12px; /* 上下间距 */
            padding-right: 10px; /* 给右侧留一点呼吸空间 */
        }

        /* 单个悬浮项容器 */
        .float-item {
            position: relative;
            width: 40px;  /* 图标宽度 */
            height: 40px; /* 图标高度 */
            cursor: pointer;
        }

        /* 
         * 二维码展示区 (默认隐藏)
         * 绝对定位在图标的左侧
         */
        .qrcode-box {
            position: absolute;
            right: 50px; /* 紧挨着图标左侧 */
            top: 0;
            width: 140px;
            height: 140px;
            background: #fff;
            border-radius: 8px;
            box-shadow: -2px 2px 10px rgba(0,0,0,0.1);
            padding: 10px;
            box-sizing: border-box;
            
            /* 初始状态：隐藏并向右偏移（藏在图标后面） */
            opacity: 0;
            visibility: hidden;
            transform: translateX(20px); 
            transition: all 0.3s ease-out; /* 滑动动画 */
            
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        /* 二维码图片样式 */
        .qrcode-box img {
            width: 90%;
            height: auto;
            display: block;
        }
        
        /* 可选：二维码下方的文字提示 */
        .qrcode-text {
            font-size: 12px;
            color: #666;
            margin-top: 5px;
            white-space: nowrap;
        }

        /* 缩略图/图标样式 */
        .icon-thumb {
            width: 100%;
            height: 100%;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
            transition: transform 0.2s;
            background-color: #fff; /* 防止透明图片背景难看 */
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: #fff;
            font-weight: bold;
        }
        
        .icon-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 鼠标悬停时的效果 */
        .float-item:hover .qrcode-box {
            opacity: 1;
            visibility: visible;
            transform: translateX(-10px); /* 向左滑出并留出一点间隙 */
        }

        .float-item:hover .icon-thumb {
            transform: scale(1.05); /* 图标轻微放大 */
        }

        /* --- 仅为演示用的占位颜色 (实际使用时可删除) --- */
        .bg-douyin { background-color: #000000; }
        .bg-redbook { background-color: #ff2442; }
        .bg-wechat { background-color: #07c160; }
        .bg-video { background-color: #fa9d3b; }