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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

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

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* 导航栏样式 */
.navbar {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #667eea;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    left: 0;
    bottom: -5px;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
    margin-top: 70px;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* 通用区域标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 10px;
}

.section-title p {
    font-size: 18px;
    color: #666;
}

/* 关于我们样式 */
.about {
    padding: 80px 0;
    background-color: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.8;
}

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

.image-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px;
    border-radius: 10px;
    font-size: 24px;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

/* 产品服务样式 */
.services {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 15px;
}

.service-card p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

/* 团队展示样式 */
.team {
    padding: 80px 0;
    background-color: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.team-card {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.team-card:hover {
    transform: translateY(-5px);
}

.team-avatar {
    font-size: 80px;
    margin-bottom: 20px;
}

.team-card h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 5px;
}

.team-card p:first-of-type {
    font-size: 16px;
    color: #667eea;
    font-weight: 500;
    margin-bottom: 10px;
}

.team-card p:last-of-type {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 联系我们样式 */
.contact {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.8;
}

.contact-form h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    color: #333;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* 产品服务详情样式 */
.services-detail {
    padding: 80px 0;
    background-color: white;
}

.service-detail-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.service-detail-item.reverse {
    grid-template-columns: 1fr 1fr;
}

.service-detail-content {
    padding: 20px;
}

.service-icon-large {
    font-size: 60px;
    margin-bottom: 20px;
}

.service-detail-content h3 {
    font-size: 32px;
    color: #333;
    margin-bottom: 20px;
}

.service-detail-content p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.service-detail-content ul {
    list-style: none;
    padding-left: 0;
}

.service-detail-content ul li {
    font-size: 16px;
    color: #666;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

.service-detail-content ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

.service-detail-image {
    text-align: center;
}

/* 服务优势样式 */
.service-advantages {
    padding: 80px 0;
    background-color: #f5f7fa;
}

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

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

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.advantage-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.advantage-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 客户案例样式 */
.case-studies {
    padding: 80px 0;
    background-color: white;
}

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

.case-card {
    background-color: #f5f7fa;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.case-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 20px;
    font-weight: 600;
}

.case-content {
    padding: 25px;
}

.case-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

.case-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 关于我们页面样式 */
.company-intro {
    padding: 80px 0;
    background-color: white;
}

/* 使命愿景样式 */
.mission-vision {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

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

.mission-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.mission-item h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
}

.mission-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

/* 发展历程样式 */
.timeline {
    padding: 80px 0;
    background-color: white;
}

.timeline-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-content::before {
    content: '';
    position: absolute;
    width: 4px;
    background-color: #667eea;
    top: 0;
    bottom: 0;
    left: 0;
    margin-left: -2px;
}

.timeline-item {
    position: relative;
    padding: 20px 40px 20px 60px;
    margin-bottom: 40px;
}

.timeline-year {
    position: absolute;
    left: -70px;
    top: 20px;
    background-color: #667eea;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 18px;
}

.timeline-event {
    background-color: #f5f7fa;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.timeline-event h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

.timeline-event p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 企业文化样式 */
.culture {
    padding: 80px 0;
    background-color: #f5f7fa;
}

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

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

.culture-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.culture-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.culture-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 荣誉成就样式 */
.achievements {
    padding: 80px 0;
    background-color: white;
}

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

.achievement-item {
    background-color: #f5f7fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.achievement-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.achievement-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.achievement-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 联系方式页面样式 */
/* 联系信息样式 */
.contact-info-section {
    padding: 80px 0;
    background-color: white;
}

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

.contact-info-item {
    background-color: #f5f7fa;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.contact-info-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.contact-info-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.contact-info-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

/* 地图和表单样式 */
.contact-map-form {
    padding: 80px 0;
    background-color: #f5f7fa;
}

.contact-map-form-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.map-section,
.contact-form-section {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.map-section h3,
.contact-form-section h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
}

.map-placeholder {
    background-color: #f5f7fa;
    height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 5px;
    color: #666;
    text-align: center;
    padding: 20px;
}

/* 表单样式 */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    color: #333;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* 常见问题样式 */
.faq-section {
    padding: 80px 0;
    background-color: white;
}

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

.faq-item {
    background-color: #f5f7fa;
    padding: 30px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.faq-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.faq-item p {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.footer-info p {
    color: #ccc;
    font-size: 14px;
}

.footer-links h4,
.footer-social h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: white;
}

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

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 14px;
}

.footer-links a:hover {
    color: #667eea;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    color: #ccc;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: #667eea;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #ccc;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 导航栏响应式 */
    .hamburger {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    /* 英雄区域响应式 */
    .hero-content h2 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    /* 关于我们响应式 */
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* 联系我们响应式 */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    /* 标题响应式 */
    .section-title h2 {
        font-size: 28px;
    }
    
    .about-text h3 {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    /* 英雄区域响应式 */
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    /* 服务卡片响应式 */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* 团队卡片响应式 */
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    /* 图片占位符响应式 */
    .image-placeholder {
        padding: 60px 40px;
        font-size: 20px;
    }
}