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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: #0066cc;
}

ul {
    list-style: none;
}

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

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

.logo a {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin-left: 20px;
}

.nav-menu a {
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #0066cc;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 主页横幅样式 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: #fff;
    text-align: center;
    padding: 150px 0 100px;
    margin-top: 60px;
}

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

.hero p {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.hero .subtitle {
    font-size: 1.5rem;
    margin-top: 20px;
}

/* 章节样式 */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background-color: #0066cc;
    margin: 15px auto 0;
}

.section-content {
    max-width: 900px;
    margin: 0 auto;
}

.section-content h3 {
    margin: 30px 0 15px;
    font-size: 1.5rem;
}

.section-content p {
    margin-bottom: 15px;
}

/* 公司信息表格样式 */
.company-info {
    margin-top: 30px;
}

.company-info table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.company-info th, .company-info td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.company-info th {
    width: 30%;
    font-weight: 600;
}

/* 业务列表样式 */
.business-list {
    margin: 20px 0;
}

.business-list li {
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
}

.business-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #0066cc;
    font-size: 1.5rem;
}

/* 服务网格样式 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-item {
    background-color: #f9f9f9;
    padding: 25px;
    border-radius: 5px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.service-item:hover {
    transform: translateY(-5px);
}

.service-item h4 {
    margin-bottom: 15px;
    color: #0066cc;
}

.service-item ul li {
    margin-bottom: 10px;
}

/* 招聘表格样式 */
.recruit-table {
    width: 100%;
    border-collapse: collapse;
}

.recruit-table th, .recruit-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.recruit-table th {
    width: 25%;
    font-weight: 600;
}

/* 联系信息样式 */
.contact-info {
    text-align: center;
}

.contact-info h3 {
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 10px;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 30px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 0;
        padding: 15px 0;
        border-bottom: 1px solid #ddd;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section {
        padding: 60px 0;
    }

    .company-info th, .recruit-table th {
        width: 40%;
    }
    
    /* 表格响应式调整 */
    .company-info table, .recruit-table {
        font-size: 0.9rem;
    }
    
    /* 服务网格调整 */
    .service-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 小屏幕手机适配 */
@media (max-width: 480px) {
    .navbar .container {
        padding: 10px;
    }
    
    .logo a {
        font-size: 1.2rem;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .company-info table, .recruit-table {
        font-size: 0.8rem;
    }
    
    .company-info th, .recruit-table th {
        width: 35%;
        padding: 8px;
    }
    
    .company-info td, .recruit-table td {
        padding: 8px;
    }
}