/* 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;
    overflow-x: hidden;
}

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

/* 链接样式 */
a {
    text-decoration: none;
    color: #007bff;
}

a:hover {
    color: #0056b3;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: #007bff;
    color: white;
    border-radius: 5px;
    text-transform: uppercase;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 123, 255, 0.2);
}

.btn:hover {
    background: #0056b3;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 123, 255, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid #007bff;
    color: #007bff;
    box-shadow: none;
}

.btn-outline:hover {
    background: #007bff;
    color: white;
}

.text-center {
    text-align: center;
}

/* 头部样式 */
header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo h1 {
    color: #007bff;
    font-size: 24px;
    font-weight: bold;
}

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

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    font-size: 18px;
    font-weight: bold;
    color: #333;
    padding: 10px 0;
    position: relative;
    transition: color 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
    color: #007bff;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: #007bff;
    transition: width 0.3s;
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #007bff, #00bfff);
    color: white;
    text-align: center;
    padding: 80px 0;
    margin-bottom: 50px;
}

.page-header h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.page-header p {
    font-size: 20px;
    max-width: 700px;
    margin: 0 auto;
}

/* 主要内容区域 */
main {
    margin-top: 20px;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
    padding: 150px 0;
    margin-bottom: 50px;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    animation: fadeInDown 1s ease;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease;
}

/* 宣传区域 */
.promo {
    padding: 80px 0;
    background: #f8f9fa;
}

.promo h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
    color: #333;
}

.promo-items {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.promo-item {
    flex: 0 0 30%;
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

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

.promo-item i {
    font-size: 50px;
    color: #007bff;
    margin-bottom: 20px;
}

.promo-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

/* 新闻区域 */
.news {
    padding: 80px 0;
}

.news h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
}

.news-items {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.news-item {
    flex: 0 0 30%;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 25px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.news-item h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #333;
}

.news-item p {
    margin-bottom: 20px;
    color: #666;
}

.date {
    color: #999;
    font-size: 14px;
}

/* 服务区域 */
.services {
    padding: 80px 0;
    background: #f8f9fa;
}

.services h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
}

.service-items {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.service-item {
    flex: 0 0 22%;
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

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

.service-item i {
    font-size: 50px;
    color: #007bff;
    margin-bottom: 20px;
}

.service-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

/* 案例区域 */
.cases {
    padding: 80px 0;
}

.cases h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
}

.case-items {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.case-item {
    flex: 0 0 30%;
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.case-img {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #007bff;
    margin-bottom: 20px;
}

.case-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

/* 人才发展区域 */
.careers {
    padding: 80px 0;
    background: linear-gradient(rgba(0, 123, 255, 0.9), rgba(0, 123, 255, 0.9));
    background-size: cover;
    color: white;
    text-align: center;
}

.careers h2 {
    margin-bottom: 30px;
    font-size: 36px;
}

.career-content {
    max-width: 800px;
    margin: 0 auto;
}

.career-content p {
    font-size: 18px;
    margin-bottom: 40px;
}

.career-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 40px;
}

.stat .number {
    display: block;
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 10px;
}

.stat .label {
    font-size: 18px;
}

/* 新闻内容区域 */
.news-content {
    padding: 50px 0;
}

.news-list {
    margin-bottom: 50px;
}

.news-article {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 40px;
    margin-bottom: 40px;
}

.article-header h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #333;
}

.article-meta {
    color: #999;
    margin-bottom: 30px;
    font-size: 14px;
}

.article-meta span {
    margin-right: 20px;
}

.article-content p {
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 16px;
}

.pagination ul {
    display: flex;
    justify-content: center;
    list-style: none;
}

.pagination ul li {
    margin: 0 5px;
}

.pagination ul li a {
    display: block;
    padding: 10px 15px;
    background: #f8f9fa;
    color: #333;
    border-radius: 5px;
}

.pagination ul li a.active,
.pagination ul li a:hover {
    background: #007bff;
    color: white;
}

/* 产品中心 */
.products-content {
    padding: 50px 0;
}

.category-filter {
    margin-bottom: 40px;
}

.category-filter h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.category-filter ul {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
}

.category-filter ul li {
    margin-right: 15px;
    margin-bottom: 15px;
}

.category-filter ul li a {
    display: block;
    padding: 10px 20px;
    background: #f8f9fa;
    color: #333;
    border-radius: 30px;
}

.category-filter ul li a.active,
.category-filter ul li a:hover {
    background: #007bff;
    color: white;
}

.product-grid {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.product-item {
    flex: 0 0 25%;
    padding: 15px;
    margin-bottom: 30px;
}

.product-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 20px;
    color: #007bff;
}

.product-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.product-info p {
    color: #666;
    margin-bottom: 15px;
}

.product-specs {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    color: #999;
}

.product-specs span {
    font-size: 14px;
}

/* 服务中心 */
.services-overview {
    padding: 50px 0;
    background: #f8f9fa;
}

.services-intro {
    text-align: center;
    margin-bottom: 50px;
}

.services-intro h2 {
    font-size: 36px;
    margin-bottom: 20px;
}

.service-features {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.feature-item {
    flex: 0 0 22%;
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.feature-item i {
    color: #007bff;
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.service-details {
    padding: 80px 0;
}

.service-details h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

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

.tab-nav {
    display: flex;
    border-bottom: 1px solid #eee;
}

.tab-btn {
    flex: 1;
    padding: 20px;
    background: #f8f9fa;
    border: none;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    background: #007bff;
    color: white;
}

.tab-content {
    padding: 40px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-pane h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.tab-pane h4 {
    font-size: 20px;
    margin: 25px 0 15px;
}

.tab-pane p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.tab-pane ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.tab-pane ul li {
    margin-bottom: 10px;
}

.service-process {
    margin-top: 30px;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.step {
    text-align: center;
    flex: 0 0 22%;
}

.step-number {
    width: 50px;
    height: 50px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 15px;
}

.service-commitment {
    padding: 80px 0;
    background: #f8f9fa;
}

.service-commitment h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
}

.commitment-items {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.commitment-item {
    flex: 0 0 22%;
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.commitment-item i {
    color: #007bff;
    margin-bottom: 20px;
}

.commitment-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

/* 知识库 */
.knowledge-content {
    padding: 50px 0;
}

.knowledge-search {
    margin-bottom: 50px;
}

.search-form {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.search-form input {
    width: 100%;
    padding: 15px 60px 15px 20px;
    border: 1px solid #ddd;
    border-radius: 30px;
    font-size: 16px;
}

.search-form button {
    position: absolute;
    right: 5px;
    top: 5px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 30px;
    padding: 10px 25px;
    cursor: pointer;
}

.knowledge-categories {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 50px;
}

.category-item {
    flex: 0 0 30%;
    text-align: center;
    padding: 40px 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.category-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.category-icon {
    color: #007bff;
    margin-bottom: 20px;
}

.category-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.knowledge-articles h2,
.knowledge-resources h2 {
    font-size: 30px;
    margin: 50px 0 30px;
}

.article-list {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.article-item {
    flex: 0 0 50%;
    padding: 15px;
    margin-bottom: 30px;
    display: flex;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-thumb {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    border-radius: 10px;
    margin-right: 20px;
    color: #007bff;
    font-size: 30px;
}

.article-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.article-info p {
    color: #666;
    margin-bottom: 15px;
    font-size: 14px;
}

.article-meta {
    color: #999;
    font-size: 12px;
}

.article-meta span {
    margin-right: 15px;
}

.resource-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.resource-item {
    padding: 15px;
    margin-bottom: 30px;
    display: flex;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.resource-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #007bff;
    color: white;
    border-radius: 10px;
    margin-right: 20px;
    font-size: 24px;
}

.resource-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.resource-info p {
    color: #666;
    margin-bottom: 15px;
    font-size: 14px;
}

.download-link {
    color: #007bff;
    font-weight: bold;
}

.download-link:hover {
    color: #0056b3;
}

/* 常见问题 */
.faq-content {
    padding: 50px 0;
}

.faq-search {
    margin-bottom: 40px;
}

.faq-categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.category-btn {
    padding: 10px 20px;
    background: #f8f9fa;
    border: none;
    border-radius: 30px;
    margin: 0 10px 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-btn:hover,
.category-btn.active {
    background: #007bff;
    color: white;
}

.faq-list {
    margin-bottom: 50px;
}

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

.faq-question {
    padding: 20px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question h3 {
    font-size: 18px;
    margin: 0;
}

.faq-answer {
    padding: 0 30px 20px;
    display: none;
    border-top: 1px solid #eee;
}

.faq-answer p {
    margin-top: 20px;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-contact {
    text-align: center;
}

.contact-card {
    max-width: 600px;
    margin: 0 auto;
    padding: 50px;
    background: linear-gradient(135deg, #007bff, #00bfff);
    color: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 123, 255, 0.3);
}

.contact-card h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.contact-card p {
    margin-bottom: 20px;
    font-size: 18px;
}

.contact-info {
    margin-bottom: 30px;
}

.contact-info p {
    margin-bottom: 10px;
    font-size: 16px;
}

/* 联系方式 */
.contact-content {
    padding: 50px 0;
}

.contact-intro {
    text-align: center;
    margin-bottom: 50px;
}

.contact-intro h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #333;
}

.contact-intro p {
    font-size: 18px;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.contact-map {
    text-align: center;
    margin-bottom: 50px;
}

.map-placeholder {
    background: linear-gradient(135deg, #007bff, #00bfff);
    color: white;
    padding: 60px 20px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 123, 255, 0.3);
}

.map-placeholder i {
    margin-bottom: 20px;
}

.map-placeholder h3 {
    font-size: 28px;
    margin-bottom: 15px;
}

.departments-container {
    margin-bottom: 50px;
}

.departments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
    gap: 30px;
}

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

.department-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.dept-header {
    background: linear-gradient(135deg, #007bff, #00bfff);
    color: white;
    padding: 25px 20px;
    text-align: center;
}

.icon-circle {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 30px;
}

.dept-header h3 {
    font-size: 22px;
    margin: 0;
}

.dept-contacts {
    padding: 20px;
}

.contact-person-card {
    display: flex;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid #eee;
}

.contact-person-card:last-child {
    border-bottom: none;
}

.contact-avatar {
    width: 50px;
    height: 50px;
    background: #f0f8ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #007bff;
    font-size: 20px;
    margin-right: 15px;
}

.contact-info h4 {
    margin-bottom: 5px;
    font-size: 16px;
}

.contact-info p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

.contact-note {
    margin-top: 30px;
}

.note-card {
    background: #e3f2fd;
    border-left: 5px solid #007bff;
    padding: 30px;
    border-radius: 0 10px 10px 0;
}

.note-card h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #007bff;
}

.note-card ul {
    list-style: none;
}

.note-card ul li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
    font-size: 16px;
}

.note-card ul li i {
    position: absolute;
    left: 0;
    color: #007bff;
    font-size: 18px;
    top: 3px;
}

/* 页脚 */
footer {
    background: #333;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.footer-section {
    flex: 0 0 30%;
    margin-bottom: 30px;
}

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

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

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

.footer-section ul li a {
    color: #ccc;
}

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

.social-icons a {
    color: white;
    font-size: 24px;
    margin-right: 15px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
}

/* 动画效果 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {

    .service-item,
    .feature-item,
    .commitment-item {
        flex: 0 0 48%;
    }

    .product-item {
        flex: 0 0 33.33%;
    }

    .article-item,
    .resource-item {
        flex: 0 0 100%;
    }

    .department {
        flex: 0 0 33.33%;
    }
}

@media (max-width: 768px) {
    .logo h1 {
        font-size: 20px;
    }

    nav ul li {
        margin-left: 10px;
    }

    nav ul li a {
        font-size: 14px;
    }

    .hero h2,
    .page-header h1 {
        font-size: 32px;
    }

    .hero p,
    .page-header p {
        font-size: 16px;
    }

    .promo-item,
    .news-item,
    .case-item {
        flex: 0 0 100%;
    }

    .service-item,
    .feature-item,
    .commitment-item {
        flex: 0 0 100%;
    }

    .product-item {
        flex: 0 0 50%;
    }

    .department {
        flex: 0 0 50%;
    }

    .footer-section {
        flex: 0 0 100%;
    }

    .career-stats {
        flex-direction: column;
    }

    .process-steps {
        flex-direction: column;
    }

    .step {
        flex: 0 0 100%;
        margin-bottom: 30px;
    }

    .step:last-child {
        margin-bottom: 0;
    }

    .tab-nav {
        flex-direction: column;
    }

    .contact-card {
        padding: 30px 20px;
    }
}

@media (max-width: 576px) {

    .product-item,
    .department {
        flex: 0 0 100%;
    }

    .category-filter ul {
        flex-direction: column;
    }

    .category-filter ul li {
        margin-right: 0;
    }

    .category-filter ul li a {
        text-align: center;
    }

    .faq-categories {
        flex-direction: column;
        align-items: center;
    }

    .category-btn {
        margin: 5px;
        width: 80%;
    }

    .article-item,
    .resource-item {
        flex-direction: column;
    }

    .article-thumb,
    .resource-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
}