/* 全局样式 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

nav {
    background-color: #333;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 2;
}

nav ul {
    list-style-type: none;
    display: flex;
}

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

nav ul li a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #007BFF;
}

#home {
    background-image: url('bg.png'); /* 这里替换成你的背景图链接 */
    background-size: cover;
    background-position: center;
    padding: 100px 0;
    position: relative;
	background-repeat: no-repeat;
}

#home::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 半透明遮罩，可根据需要调整透明度 */
}

.hero {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-content {
    width: 60%;
    text-align: center;
    color: white;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
}

.btn {
    background-color: #007BFF;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 18px;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #0056b3;
}

#services {
    padding: 100px 20px;
    text-align: center;
}

.service-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.service {
    width: calc(33.33% - 40px);
    margin: 20px;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    transition: transform 0.3s ease;
}

.service:hover {
    transform: translateY(-10px);
}

.service i {
    font-size: 48px;
    color: #007BFF;
    margin-bottom: 20px;
}

.service h3 {
    margin-bottom: 10px;
}

#contact {
    padding: 100px 20px;
    text-align: center;
}

#contact form {
    display: flex;
    flex-direction: column;
    align-items: center;
}

#contact form input,
#contact form textarea {
    width: 300px;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#contact form button {
    background-color: #007BFF;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#contact form button:hover {
    background-color: #0056b3;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
}

@media (max-width: 768px) {
    .service {
        width: calc(50% - 40px);
    }
}

@media (max-width: 480px) {
    .service {
        width: calc(100% - 40px);
    }
}