body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            margin: 0;
            padding: 0;
            background: linear-gradient(135deg, #f4f4f4, #e0e0e0);
            color: #333;
        }
        header {
            background: linear-gradient(135deg, #333, #555);
            color: #fff;
            padding: 20px 0;
            text-align: center;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        }
        /* 调整 logo 图片的样式 */
        header img {
            max-width: 266px;
            height: auto;
        }
        header h1 {
            font-size: 2.5rem;
            margin: 0;
            animation: fadeIn 2s ease-in-out;
        }
        header p {
            font-size: 1.2rem;
            margin: 10px 0 0;
            animation: fadeIn 2.5s ease-in-out;
        }
        nav {
            display: flex;
            justify-content: center;
            background: rgba(255, 255, 255, 0.9);
            padding: 10px;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        nav a {
            color: #333;
            margin: 0 20px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: color 0.3s ease;
        }
        nav a:hover {
            color: #007BFF;
        }
        .container {
            max-width: 1200px;
            margin: 40px auto;
            padding: 20px;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }
        h2 {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 20px;
            color: #007BFF;
        }
        .services {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            margin-top: 20px;
        }
        .service {
            width: 30%;
            padding: 20px;
            margin: 10px;
            border: 1px solid #ddd;
            border-radius: 10px;
            text-align: center;
            background: #f9f9f9;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .service:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }
        .service h3 {
            font-size: 1.5rem;
            margin-bottom: 10px;
            color: #333;
        }
        .service p {
            font-size: 1rem;
            color: #666;
        }
        /* 移除链接的下划线，并设置颜色 */
        .service h3 a {
            text-decoration: none;
            color: #333; /* 保持和原标题颜色一致 */
        }

        .service h3 a:hover {
            color: #007BFF; /* 鼠标悬停时改变颜色 */
        }
        .contact {
            text-align: center;
            margin-top: 40px;
            padding: 20px;
            background: linear-gradient(135deg, #007BFF, #0056b3);
            border-radius: 10px;
            color: #fff;
        }
        .contact h2 {
            color: #fff;
        }
        .contact a {
            color: #fff;
            text-decoration: none;
            font-weight: bold;
            transition: color 0.3s ease;
        }
        .contact a:hover {
            color: #f1c40f;
        }
        footer {
            background: linear-gradient(135deg, #333, #555);
            color: #fff;
            text-align: center;
            padding: 20px 0;
            margin-top: 40px;
            box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.2);
        }
        footer p {
            margin: 0;
            font-size: 0.9rem;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }
 



nav {
    background: #444;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}
nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
nav li {
    display: inline;
    margin: 0 15px;
}
nav a {
    color: #fff;
    text-decoration: none;
}
.container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
h1 {
    text-align: center;
    color: #007BFF;
}
p {
    line-height: 1.6;
}
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}
.product-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}
.product {
    width: 30%;
    margin: 20px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    text-align: center;
    background: #f9f9f9;
}
.product img {
    max-width: 100%;
    height: auto;
    margin-bottom: 10px;
}
/* 更多样式可以添加到这里 */