/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, 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-color: #003366;
    color: white;
    padding: 2rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

.logo h1 {
    font-size: 1.6rem;
    font-weight: bold;
}

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

.nav-links li {
    margin-left: 1.3rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem; /* 加大字体 */
    font-weight: bold; /* 加粗字体 */
    transition: color 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: #0066cc;
    color: #fff;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主要内容 */
main {
    margin-top: 90px;
}

/* 首页横幅 */
.hero {
    background: linear-gradient(135deg, #003366 0%, #0066cc 100%);
    color: white;
    text-align: center;
    padding: 100px 0;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn-primary {
    display: inline-block;
    background-color: #ff6600;
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #e55d00;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.about h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: #003366;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.about-text {
    flex: 1;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 新闻动态 */
.news {
    padding: 80px 0;
}

.news h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: #003366;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.news-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    margin-bottom: 10px;
    color: #003366;
}

.date {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.read-more {
    display: inline-block;
    margin-top: 10px;
    color: #0066cc;
    text-decoration: none;
    font-weight: bold;
}

.read-more:hover {
    text-decoration: underline;
}

/* 业务范围 */
.services {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.services h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: #003366;
}

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

.service-card {
    background: white;
    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);
}

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

.service-card h3 {
    margin-bottom: 15px;
    color: #003366;
}

/* 成功案例 */
.cases {
    padding: 80px 0;
}

.cases h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: #003366;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-content {
    padding: 20px;
}

.case-content h3 {
    margin-bottom: 10px;
    color: #003366;
}

/* 人才发展 */
.careers {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.careers h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: #003366;
}

.careers-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.careers-text {
    flex: 1;
}

.careers-text ul {
    margin: 20px 0;
    padding-left: 20px;
}

.careers-text li {
    margin-bottom: 10px;
}

.careers-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 页脚 */
footer {
    background-color: #003366;
    color: white;
    padding: 50px 0 20px;
}

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

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #004080;
}

/* 新闻报道页面 */
.news-page {
    padding: 40px 0 80px;
}

.news-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #003366;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.news-item {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.news-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-item-content {
    padding: 20px;
}

.news-item-content h3 {
    margin-bottom: 10px;
    color: #003366;
}

.news-item-content .date {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

/* 产品中心页面 */
.products-page {
    padding: 40px 0 80px;
}

.products-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #003366;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    text-align: center;
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    margin-bottom: 10px;
    color: #003366;
}

/* 服务中心页面 */
.services-page {
    padding: 40px 0 80px;
}

.services-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #003366;
}

.services-content {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 服务中心页面美化样式 */
.services-hero {
    background: linear-gradient(135deg, #003366 0%, #0066cc 100%);
    color: white;
    text-align: center;
    padding: 100px 0;
    margin-top: 80px;
}

.services-hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.services-hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.services-intro {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px;
}

.services-intro h3 {
    font-size: 1.8rem;
    color: #003366;
    margin-bottom: 15px;
}

.services-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.feature-card {
    background: white;
    border-radius: 10px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h4 {
    color: #003366;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.content-section {
    margin-bottom: 40px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.content-section h4 {
    color: #003366;
    font-size: 1.5rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #003366;
}

.content-section ul {
    list-style-type: none;
    padding-left: 0;
}

.content-section ul li {
    padding: 10px 0 10px 30px;
    position: relative;
    border-bottom: 1px dashed #eee;
}

.content-section ul li:last-child {
    border-bottom: none;
}

.content-section ul li:before {
    content: "✓";
    color: #00aaff;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 10px;
}

.process-container {
    position: relative;
    padding-left: 30px;
}

.process-container:before {
    content: "";
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #00aaff;
}

.process-step {
    display: flex;
    margin-bottom: 30px;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: #003366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 20px;
    flex-shrink: 0;
    position: absolute;
    left: -30px;
    top: 0;
    z-index: 2;
}

.step-content h5 {
    color: #003366;
    margin-bottom: 5px;
}

.contact-box {
    background: #f0f8ff;
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid #00aaff;
}

.contact-box ul {
    margin: 20px 0;
}

.contact-box ul li {
    margin-bottom: 10px;
}

.promise {
    background: #e6f7ff;
    padding: 15px;
    border-radius: 5px;
    margin-top: 20px;
    border: 1px dashed #00aaff;
}

.promise p {
    font-weight: bold;
    color: #003366;
    margin: 0;
}

/* 知识库页面 */
.knowledge-page {
    padding: 40px 0 80px;
}

.knowledge-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #003366;
}

.knowledge-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.knowledge-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.knowledge-item h3 {
    margin-bottom: 15px;
    color: #003366;
}

/* 常见问题页面 */
.faq-page {
    padding: 40px 0 80px;
}

.faq-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #003366;
}

.faq-item {
    background: white;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.faq-question {
    padding: 20px;
    background-color: #003366;
    color: white;
    font-weight: bold;
    cursor: pointer;
    position: relative;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

.faq-question.active::after {
    content: '-';
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer.open {
    padding: 20px;
    max-height: 500px;
}

/* 联系方式页面 */
.contact-page {
    padding: 40px 0 80px;
}

.contact-page h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    color: #003366;
}

.contact-info {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.department {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.department:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.department h3 {
    color: #003366;
    margin-bottom: 15px;
}

.contact-person {
    margin: 10px 0;
}

.contact-email {
    color: #0066cc;
    text-decoration: none;
}

.contact-email:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        background-color: #003366;
        padding: 1rem 0;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 0.5rem 0;
    }
    
    .about-content,
    .careers-content {
        flex-direction: column;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    main {
        margin-top: 120px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .news-grid,
    .cases-grid,
    .services-grid,
    .products-grid,
    .knowledge-list,
    .news-list {
        grid-template-columns: 1fr;
    }
}