/* 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 {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 链接样式 */
a {
    text-decoration: none;
    color: #2196F3;
    transition: color 0.3s ease;
}

a:hover {
    color: #0d47a1;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn.primary {
    background-color: #2196F3;
    color: white;
}

.btn.primary:hover {
    background-color: #0d47a1;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn.secondary {
    background-color: #4CAF50;
    color: white;
}

.btn.secondary:hover {
    background-color: #2E7D32;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.btn.more {
    background-color: transparent;
    color: #2196F3;
    border: 1px solid #2196F3;
}

.btn.more:hover {
    background-color: #2196F3;
    color: white;
}

/* 头部样式 */
header {
    background-color: white;
    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: 15px 20px;
}

.logo h1 {
    color: #2196F3;
    font-size: 24px;
    margin-bottom: 5px;
}

.logo p {
    font-size: 14px;
    color: #666;
}

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

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

nav ul li a {
    color: #333;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

nav ul li a:hover {
    color: #2196F3;
}

nav ul li a.active {
    color: #2196F3;
}

nav ul li a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #2196F3;
}

/* 首页样式 */
.hero {
    background: linear-gradient(135deg, #2196F3, #21CBF3);
    color: white;
    padding: 80px 0;
    text-align: center;
}

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

.hero p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.banner {
    background-color: #4CAF50;
    color: white;
    padding: 40px 0;
    text-align: center;
}

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

.banner p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* 新闻动态 */
.news-section {
    padding: 60px 0;
    background-color: white;
}

.news-section h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: #333;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.news-item {
    background-color: #f5f5f5;
    padding: 25px;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.news-item h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #2196F3;
}

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

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

/* 业务范围 */
.services {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.services h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: #333;
}

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

.service-item {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.service-item h3 {
    color: #2196F3;
    margin-bottom: 15px;
    font-size: 22px;
}

/* 成功案例 */
.cases {
    padding: 60px 0;
    background-color: white;
}

.cases h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: #333;
}

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

.case-item {
    background-color: #f5f5f5;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

.case-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.case-item h3 {
    padding: 20px 20px 0;
    color: #2196F3;
    font-size: 20px;
}

.case-item p {
    padding: 10px 20px 20px;
    color: #666;
}

/* 人才发展 */
.careers {
    padding: 60px 0;
    background: linear-gradient(135deg, #6A11CB 0%, #2575FC 100%);
    color: white;
}

.careers h2 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
}

.careers-content p {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto 30px;
    text-align: center;
}

.careers-content ul {
    max-width: 800px;
    margin: 0 auto 30px;
    padding-left: 20px;
}

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

.careers-content .btn {
    display: block;
    max-width: 200px;
    margin: 0 auto;
}

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

/* 页脚 */
footer {
    background-color: #333;
    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: 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;
}

.footer-section p,
.footer-section a {
    color: #ccc;
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #555;
    color: #aaa;
    font-size: 14px;
}

/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #2196F3, #21CBF3);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* 新闻列表 */
.news-list {
    padding: 60px 0;
    background-color: white;
}

.news-article {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid #eee;
}

.news-article:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.news-article h2 {
    color: #2196F3;
    margin-bottom: 15px;
}

.meta {
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}

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

.news-content ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.news-content ul li {
    margin-bottom: 10px;
}

/* 服务详情 */
.services-detail {
    padding: 60px 0;
    background-color: white;
}

.service-category {
    margin-bottom: 50px;
}

.service-category:last-child {
    margin-bottom: 0;
}

.service-category h2 {
    color: #2196F3;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #2196F3;
}

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

.service-description ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

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

.service-description strong {
    color: #333;
}

.service-process h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2196F3;
}

.process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.step {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 20px;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: #2196F3;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin: 0 auto 15px;
}

.step h3 {
    margin-bottom: 10px;
    color: #333;
}

/* 案例详情 */
.cases-detail {
    padding: 60px 0;
    background-color: white;
}

.case-study {
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid #eee;
}

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

.case-images {
    margin-bottom: 30px;
}

.case-info h2 {
    color: #2196F3;
    margin-bottom: 15px;
}

.case-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    color: #666;
    font-size: 14px;
}

.case-description h3 {
    color: #333;
    margin: 25px 0 15px;
}

.case-description p {
    margin-bottom: 15px;
    line-height: 1.8;
}

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

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

/* 知识库 */
.knowledge-base {
    padding: 60px 0;
    background-color: white;
}

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

.knowledge-category:last-child {
    margin-bottom: 0;
}

.knowledge-category h2 {
    color: #2196F3;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid #2196F3;
}

.knowledge-item {
    background-color: #f5f5f5;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.knowledge-item:last-child {
    margin-bottom: 0;
}

.knowledge-item h3 {
    color: #333;
    margin-bottom: 10px;
}

.knowledge-item .meta {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.read-more {
    display: inline-block;
    margin-top: 10px;
    color: #2196F3;
    font-weight: 500;
}

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

/* FAQ */
.faq-section {
    padding: 60px 0;
    background-color: white;
}

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

.faq-category:last-child {
    margin-bottom: 0;
}

.faq-category h2 {
    color: #2196F3;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid #2196F3;
}

.faq-item {
    margin-bottom: 20px;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    background-color: #f5f5f5;
    padding: 20px;
    cursor: pointer;
    position: relative;
    font-size: 18px;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    transition: transform 0.3s ease;
}

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

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

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

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

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

.faq-answer ul li,
.faq-answer ol li {
    margin-bottom: 10px;
}

/* 联系我们 */
.contact-section {
    padding: 60px 0;
    background-color: white;
}

.contact-info {
    margin-bottom: 50px;
}

.contact-info h2,
.contact-form h2 {
    color: #2196F3;
    margin-bottom: 30px;
}

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

.contact-item h3 {
    margin-bottom: 10px;
    color: #333;
}

.map-container {
    height: 300px;
    background-color: #f5f5f5;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder p {
    color: #666;
    font-size: 18px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2196F3;
}

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

    .logo {
        margin-bottom: 15px;
        text-align: center;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

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

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

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .process-steps {
        flex-direction: column;
        align-items: center;
    }

    .step {
        width: 100%;
        max-width: 300px;
    }

    .contact-details {
        grid-template-columns: 1fr;
    }
}

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

    .hero {
        padding: 50px 0;
    }

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

    .news-grid,
    .services-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }

    .case-meta {
        flex-direction: column;
        gap: 5px;
    }
}

.footer-section ul {
    display: flex;
}

.footer-section ul li {
    margin-right: 15px;
}

.footer-section ul li:last-child {
    margin-right: 0;
}