body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

h1 {
    font-size: 500%;
}

h2 {
    font-size: 400%;
}

p {
    font-size: 200%;
}

header {
    background-color: #007bff;
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    width: 200px;
    /* 根据实际logo尺寸调整 */
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

.hero {
    background-color: #f8f9fa;
    /* 或使用图片作为背景 */
    padding: 100px 20px;
    text-align: center;
    color: #343a40;
}

.hero img {
    max-width: 100%;
    height: auto;
}

.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 20px;
}

.feature {
    flex: 1 1 calc(50% - 20px);
    /* 两个服务一行，间距为20px */
    margin: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
    text-align: center;
}

.feature img {
    max-width: 100%;
    height: auto;
}

.about {
    padding: 20px;
    background-color: #f8f9fa;
    /* 或使用图片作为背景，需设置background-image和适当的background-size */
}

.about img {
    max-width: 100%;
    height: auto;
    margin-bottom: 20px;
}

footer {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    text-align: center;
}