/* --- 基本重置和全局样式 --- */
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f8;
            color: #333;
            padding-bottom: 70px; /* 为固定底部栏留出空间 */
        }

        /* --- 头部和背景 --- */
        .header-banner {
            height: 150px;
            background-color: #3a4a6e; /* 模拟图片中的深色背景 */
            background-image: url('https://via.placeholder.com/600x150/3a4a6e/ffffff?text=Header+Banner');
            background-size: cover;
            background-position: center;
        }

        /* --- 个人信息卡 --- */
        .profile-container {
            padding: 0 15px;
            position: relative;
            margin-top: -80px; /* 使卡片上移，悬浮在背景上 */
        }

        .profile-card {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            padding: 20px;
            text-align: center;
            position: relative;
        }

        .profile-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            border: 4px solid #fff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: absolute;
            top: -50px; /* 头像一半在卡片外 */
            left: 50%;
            transform: translateX(-50%);
        }

        .profile-header {
            margin-top: 50px; /* 为头像留出空间 */
        }

        .profile-name {
            font-size: 24px;
            font-weight: 600;
            margin: 0;
        }

        .profile-title {
            font-size: 14px;
            color: #888;
            margin-top: 4px;
        }

        .contact-icons {
            margin: 15px 0;
            display: flex;
            justify-content: center;
            gap: 40px;
            align-items:center;
            font-size: 20px;
            color: #555;
        }

        .contact-icons i {
            cursor: pointer;
        }

        .action-buttons {
            display: flex;
            gap: 10px;
            margin: 15px 0;
        }

        .action-buttons .btn {
            flex: 1;
            padding: 10px;
            border: none;
            border-radius: 20px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
        }

        .btn-primary {
            background-color: #007bff;
            color: white;
        }

        .btn-secondary {
            background-color: #e9ecef;
            color: #333;
        }
        
        .btn-success {
            background-color: #28a745;
            color: white;
        }

        .profile-tags {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px;
        }

        .tag {
            background-color: #f1f3f5;
            color: #555;
            padding: 5px 12px;
            border-radius: 15px;
            font-size: 13px;
        }

        /* --- 内容区域 --- */
        .content-section {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            padding: 20px;
            margin: 15px;
        }

        .section-title {
            font-size: 18px;
            font-weight: 600;
            margin-top: 0;
            margin-bottom: 15px;
            border-left: 4px solid #007bff;
            padding-left: 10px;
        }

        .about-text {
            font-size: 14px;
            line-height: 1.6;
            color: #555;
        }

        .logo-grid {
            display: grid;
            /*grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));*/
            /*grid-template-columns:  repeat(2)*/
             grid-template-columns: 45% 45% ;
            gap: 15px;
            align-items: center;
        }

        .logo-grid img {
            width: 100%;
            /*filter: grayscale(100%);*/
            /*opacity: 0.7;*/
            height:90px;
            object-fit:cover;
        }

        /* 产品列表 */
        .product-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .product-item {
            display: flex;
            gap: 15px;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #f0f0f0;
        }
        .product-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .product-image {
            width: 80px;
            /*height: 60px;*/
            object-fit: cover;
            border-radius: 8px;
        }

        .product-info {
            flex: 1;
        }

        .product-title {
            font-size: 15px;
            font-weight: 600;
            margin: 0 0 5px 0;
        }

        .product-rating {
            font-size: 12px;
            color: #f5a623;
        }

        .product-description {
            font-size: 13px;
            color: #888;
            margin-top: 5px;
        }

        /* 数据统计 */
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            text-align: center;
        }

        .stat-item .value {
            font-size: 28px;
            font-weight: 700;
            color: #007bff;
        }
        .stat-item .unit {
            font-size: 16px;
            font-weight: 600;
            color: #007bff;
            margin-left: 2px;
        }

        .stat-item .label {
            font-size: 13px;
            color: #888;
            margin-top: 5px;
        }

        /* --- 底部固定栏 --- */
        .fixed-footer {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 60px;
            background: #fff;
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
            display: flex;
            align-items: center;
            padding: 0 15px;
            box-sizing: border-box; /* 确保 padding 不会增加宽度 */
            z-index: 1000; /* 确保在模态框之下 */
            gap:20px;
        }
         .fixed-footer .btn {
            width: 100%;
            padding: 12px;
            border: none;
            border-radius: 25px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: block;
            text-align: center;
        }


        .footer-action {
            font-size: 15px;
            color: #555;
            cursor: pointer;
            flex:1;
        
        }
        .footer-action:hover {
            color: #007bff;
        }

        .footer-main-action {
            width:50%;
            margin-left: 20px;
        }

       
        /* --- 模态框样式 --- */
        .modal {
            display: none; /* 默认隐藏 */
            position: fixed; /* 固定定位 */
            z-index: 1001; /* 确保在最上层 */
            left: 0;
            top: 0;
            width: 100%; /* 全宽 */
            height: 100%; /* 全高 */
            overflow: auto; /* 允许滚动（如果内容超出）*/
            background-color: rgba(0,0,0,0.6); /* 半透明黑色背景 */
            justify-content: center;
            align-items: center;
        }

        .modal-content {
            background-color: #fefefe;
            margin: auto;
            padding: 20px;
            border-radius: 10px;
            width: 80%;
            max-width: 300px;
            text-align: center;
            position: relative;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .modal-content img {
            width: 100%;
            height: auto;
            max-width: 250px; /* 限制二维码大小 */
            display: block;
            margin: 15px auto;
            border: 1px solid #eee;
            border-radius: 5px;
        }

        .modal-content p {
            font-size: 16px;
            color: #555;
            margin-top: 10px;
        }

        .close-button {
            color: #aaa;
            position: absolute;
            top: 10px;
            right: 15px;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
        }

        .close-button:hover,
        .close-button:focus {
            color: #333;
            text-decoration: none;
        }
        
        
        
        .product .product-list{
            display:flex;
            flex-wrap:wrap;
            gap:20px;
        }
        .product .product-list .product-item{
            display:block;
            width:calc(100% / 2 - 10px);
             border-bottom: 0;
             padding-bottom:0;
        }
        .product .product-list .product-item img{
            width:100%;
        }
        
        .about-content p{
           margin-bottom:0;
        }