/* 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;
    background-color: #f8f9fa;
}

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

/* 页面头部样式 */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
}

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

nav ul li {
    margin-left: 5px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-size: 18px;
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 15px;
    border-radius: 4px;
}

nav ul li a:hover,
nav ul li a.active {
    color: #3498db;
    background-color: #ecf0f1;
}

/* 页面主体内容 */
main {
    min-height: calc(100vh - 140px);
    padding: 40px 0;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-header h2 {
    font-size: 32px;
    color: #2c3e50;
    position: relative;
    display: inline-block;
    padding-bottom: 15px;
}

.page-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: #3498db;
}

/* 首页样式 */
.hero {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    text-align: center;
    padding: 80px 0;
    border-radius: 10px;
    margin-bottom: 40px;
}

.hero h2 {
    font-size: 42px;
    margin-bottom: 20px;
}

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

.cta-button {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 30px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #c0392b;
}

/* 新闻动态 */
.news-section {
    margin-bottom: 50px;
}

.news-section h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
    color: #2c3e50;
}

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

.news-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.news-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.news-item p {
    margin-bottom: 20px;
    color: #7f8c8d;
}

.date {
    color: #95a5a6;
    font-size: 14px;
}

/* 业务范围 */
.services-section {
    margin-bottom: 50px;
    background-color: #ecf0f1;
    padding: 50px 0;
    border-radius: 10px;
}

.services-section h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
    color: #2c3e50;
}

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

.service-item {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

.icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 成功案例 */
.cases-section {
    margin-bottom: 50px;
}

.cases-section h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
    color: #2c3e50;
}

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

.case-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border-left: 4px solid #3498db;
}

.case-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 人才发展 */
.careers-section {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 50px 0;
    border-radius: 10px;
    margin-bottom: 50px;
}

.careers-section h2 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 28px;
}

.careers-content p {
    font-size: 18px;
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.careers-content ul {
    max-width: 600px;
    margin: 0 auto 30px;
    text-align: left;
}

.careers-content li {
    margin-bottom: 15px;
    font-size: 16px;
}

.secondary-button {
    background-color: transparent;
    color: white;
    border: 2px solid white;
    padding: 12px 25px;
    font-size: 16px;
    border-radius: 30px;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
    display: block;
    margin: 0 auto;
}

.secondary-button:hover {
    background-color: white;
    color: #2c3e50;
}

/* 公司简介页面 */
.about-content {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.about-text h3 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: #2c3e50;
}

.about-text p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.timeline {
    list-style-type: none;
    position: relative;
    padding-left: 30px;
    margin-bottom: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #3498db;
}

.timeline li {
    margin-bottom: 20px;
    position: relative;
    padding-left: 20px;
}

.timeline li::before {
    content: '';
    position: absolute;
    left: -36px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #3498db;
    border: 2px solid white;
    box-shadow: 0 0 0 2px #3498db;
}

.values {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.value-item {
    text-align: center;
    padding: 20px;
    background-color: #ecf0f1;
    border-radius: 10px;
}

.value-item h4 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.advantages {
    padding-left: 20px;
}

.advantages li {
    margin-bottom: 10px;
}

/* 新闻动态列表 */
.news-list .news-item-detail {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.news-meta {
    display: flex;
    margin-bottom: 15px;
}

.date {
    margin-right: 20px;
    color: #7f8c8d;
}

.category {
    background-color: #3498db;
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 14px;
}

.news-item-detail h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.news-content p {
    margin-bottom: 20px;
    line-height: 1.8;
}

/* 产品中心 */
.products-showcase {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.product-categories {
    margin-bottom: 30px;
}

.product-categories h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.product-categories ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
}

.product-categories li {
    margin-right: 15px;
    margin-bottom: 15px;
}

.product-categories a {
    text-decoration: none;
    color: #333;
    padding: 8px 16px;
    border-radius: 20px;
    background-color: #ecf0f1;
    transition: all 0.3s;
}

.product-categories a:hover,
.product-categories .active a {
    background-color: #3498db;
    color: white;
}

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

.product-item {
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.product-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.product-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.product-features {
    text-align: left;
    margin: 20px 0;
    padding-left: 20px;
}

.product-features li {
    margin-bottom: 8px;
}

/* 服务中心 */
.services-overview {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.services-intro {
    margin-bottom: 40px;
}

.services-intro h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

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

.service-card {
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.service-card ul {
    text-align: left;
    margin: 20px 0;
    padding-left: 20px;
}

.service-card li {
    margin-bottom: 8px;
}

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

.service-process h3 {
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    color: #2c3e50;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.step {
    text-align: center;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.service-commitment {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.service-commitment h3 {
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    color: #2c3e50;
}

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

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

.commitment-item h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

/* 成功案例 */
.cases-filter {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.cases-filter h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-tag {
    background-color: #ecf0f1;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-tag:hover,
.filter-tag.active {
    background-color: #3498db;
    color: white;
}

.cases-gallery {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.case-study {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 30px;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

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

.case-image {
    font-size: 120px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-details h3 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.case-meta {
    display: flex;
    margin-bottom: 20px;
}

.industry,
.year {
    background-color: #ecf0f1;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    margin-right: 15px;
}

.case-highlights h4 {
    margin: 20px 0 15px;
    color: #2c3e50;
}

.case-highlights ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.case-highlights li {
    margin-bottom: 10px;
}

/* 知识库 */
.knowledge-categories {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.knowledge-categories h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #2c3e50;
    text-align: center;
}

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

.category-card {
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 25px;
}

.category-icon {
    font-size: 48px;
    text-align: center;
    margin-bottom: 20px;
}

.category-card h4 {
    font-size: 22px;
    margin-bottom: 15px;
    text-align: center;
    color: #2c3e50;
}

.category-card ul {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.category-card li {
    margin-bottom: 10px;
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

.category-card a {
    text-decoration: none;
    color: #3498db;
    transition: color 0.3s;
}

.category-card a:hover {
    color: #2980b9;
    text-decoration: underline;
}

.knowledge-search {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.knowledge-search h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
    text-align: center;
}

.search-box {
    display: flex;
    max-width: 600px;
    margin: 0 auto 30px;
}

.search-box input {
    flex: 1;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 30px 0 0 30px;
    font-size: 16px;
    outline: none;
}

.search-button {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 0 25px;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-button:hover {
    background-color: #2980b9;
}

.popular-topics h4 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
}

.topic-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.topic-tag {
    background-color: #ecf0f1;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
}

/* 常见问题 */
.faq-categories {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.faq-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 30px;
    justify-content: center;
}

.faq-category {
    background-color: #ecf0f1;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.faq-category:hover,
.faq-category.active {
    background-color: #3498db;
    color: white;
}

.faq-item {
    border: 1px solid #eee;
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: #f8f9fa;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 18px;
    color: #2c3e50;
}

.faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: #3498db;
}

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

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 1000px;
}

.faq-answer p,
.faq-answer li {
    margin-bottom: 15px;
    line-height: 1.8;
}

.faq-answer ol,
.faq-answer ul {
    padding-left: 20px;
    margin: 15px 0;
}

.faq-contact {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.faq-contact h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.faq-contact p {
    margin-bottom: 15px;
}

.faq-contact a {
    color: #3498db;
    text-decoration: none;
}

.faq-contact a:hover {
    text-decoration: underline;
}

/* 联系我们 */
.contact-info {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.company-info {
    margin-bottom: 40px;
}

.info-item {
    margin-bottom: 15px;
    font-size: 16px;
}

.info-item strong {
    display: inline-block;
    width: 100px;
}

.departments h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.department-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.department {
    border: 1px solid #eee;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.department h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.contact-person {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-person span {
    font-weight: bold;
}

.contact-person a {
    color: #3498db;
    text-decoration: none;
}

.contact-person a:hover {
    text-decoration: underline;
}

.contact-map {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-map h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
    text-align: center;
}

.map-placeholder {
    height: 300px;
    background-color: #ecf0f1;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.map-placeholder p {
    font-size: 18px;
    color: #7f8c8d;
    text-align: center;
}

/* 页面底部 */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: #3498db;
}

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

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

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #3498db;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        padding: 15px 0;
    }

    nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }

    nav ul li {
        margin: 5px 10px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero p {
        font-size: 18px;
    }

    .case-study {
        grid-template-columns: 1fr;
    }

    .case-image {
        font-size: 60px;
    }

    .search-box {
        flex-direction: column;
        gap: 10px;
    }

    .search-box input,
    .search-button {
        border-radius: 30px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 50px 20px;
    }

    .hero h2 {
        font-size: 28px;
    }

    .services-grid,
    .cases-grid,
    .products-grid,
    .process-steps,
    .commitments,
    .categories-grid,
    .department-grid {
        grid-template-columns: 1fr;
    }

    .values {
        grid-template-columns: 1fr;
    }
}