/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.brand-name {
    font-size: 1.5em;
    font-weight: bold;
    color: #007bff;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li a {
    color: #333;
    text-decoration: none;
    padding: 10px 20px;
    transition: color 0.3s;
}

.nav-links li a:hover {
    color: #007bff;
}

/* 主要横幅样式 */
.hero {
    background: linear-gradient(45deg, #007bff, #00a8ff);
    height: 80vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: #fff;
    margin-top: 70px;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: #007bff;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.cta-button:hover {
    background: #0056b3;
}

/* 服务卡片样式 */
.services {
    padding: 80px 0;
    background: #f9f9f9;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.service-card h3 {
    color: #007bff;
    margin-bottom: 15px;
}

/* 联系表单样式 */
.contact {
    padding: 80px 0;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.submit-button {
    background: #007bff;
    color: #fff;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-button:hover {
    background: #0056b3;
}

/* 页脚样式 */
.footer {
    background: #333;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

.footer a {
    color: #fff;
    text-decoration: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero h1 {
        font-size: 2em;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
}