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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    padding-top: 110px;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: block;
}

.logo img {
    height: 80px;
    width: auto;
}

.navbar .nav-links {
    display: flex;
    gap: 30px;
}

.navbar .nav-links a {
    color: #2c3e50;
    text-decoration: none;
    font-size: 15px;
}

/* 主要内容区域 */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(135deg, #3498db, #2c3e50);
    color: white;
    text-align: center;
}

/* 容器基础样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 两列布局容器 - 仅用于特定页面 */
.two-column-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 业务亮点卡片 */
.services-section {
    margin-bottom: 4rem;
}

.services-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 0 auto;
    max-width: 1200px;
}

.service-card {
    background-color: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    text-align: center;
    flex: 1;
    min-width: 300px;
    margin: 15px;
}

.service-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 15px;
}

.service-card h3 {
    color: #2c3e50;
    margin: 15px 0;
    font-size: 1.5rem;
}

.service-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* 页脚样式 */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 60px 0 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.footer-nav {
    width: 100%;
    text-align: center;
    margin-bottom: 10px;
}

.footer .nav-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer .nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer .nav-links a:hover {
    opacity: 1;
    color: #3498db;
}

.footer-contact {
    width: 100%;
    text-align: center;
    margin-bottom: 10px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.contact-item {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.footer-logo-container {
    text-align: center;
    margin: 10px 0;
}

.footer-logo {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-bottom {
    text-align: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        gap: 15px;
    }

    .contact-info {
        padding: 0 20px;
    }

    .contact-item {
        font-size: 13px;
    }

    .services-grid {
        flex-direction: column;
        align-items: center;
    }

    .service-card {
        width: 100%;
        max-width: 100%;
    }

    .two-column-container {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 6rem 1rem 3rem;
    }
    
    .container {
        padding: 1rem;
    }
    
    .culture-grid {
        flex-direction: column;
    }
    
    .culture-item {
        width: 100%;
    }
    
    .environment-grid,
    .position-grid,
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .online-application {
        padding: 1rem;
    }
}

/* 加入我们页面样式 */
.culture-grid {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.culture-item {
    flex: 1;
    min-width: 200px;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

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

.culture-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.culture-item p {
    color: #666;
    line-height: 1.5;
}

.environment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.environment-item {
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s;
}

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

.position-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.position-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 2rem;
    transition: transform 0.3s;
}

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

.position-details {
    margin-top: 1rem;
}

.position-details ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.position-details li {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.position-details li:before {
    content: "•";
    color: #3498db;
    position: absolute;
    left: 0;
}

.apply-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 1rem;
    transition: background 0.3s;
}

.apply-btn:hover {
    background: #2980b9;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: bold;
}

.online-application {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    background: #3498db;
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #2980b9;
}

/* 主营业务页面样式 */
.service-section {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: transform 0.3s ease;
}

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

.service-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.service-description ul {
    list-style: none;
    padding: 0;
}

.service-description li {
    margin: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.service-description li:before {
    content: "•";
    color: #3498db;
    position: absolute;
    left: 0;
}

/* 关于我们页面样式 */
.about-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.section-line {
    width: 60px;
    height: 3px;
    background: #3498db;
    margin: 0 auto;
}

/* 首页公司简介样式 */
.container .company-intro {
    margin-bottom: 4rem;
    text-align: center;
}

.container .company-intro p {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    color: #666;
}

/* 关于我们页面公司简介样式 */
.about-container .company-intro {
    margin-bottom: 4rem;
}

.about-container .intro-content {
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    margin-top: 2rem;
}

.about-container .intro-text {
    flex: 2;
}

.about-container .intro-text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #666;
}

.about-container .intro-highlights {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-width: 200px;
}

.about-container .highlight-item {
    text-align: center;
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.about-container .highlight-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: #3498db;
    margin-bottom: 0.5rem;
}

.about-container .highlight-text {
    color: #666;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .about-container .intro-content {
        flex-direction: column;
        gap: 2rem;
    }

    .about-container .intro-highlights {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .about-container .highlight-item {
        flex: 1;
        min-width: 150px;
    }
}

/* 公司愿景和使命 */
.vision-mission {
    text-align: center;
    margin-bottom: 4rem;
}

.vision-mission p {
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.8;
    color: #666;
}

/* 发展历程样式 */
.company-history {
    margin: 4rem 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: #3498db;
    top: 0;
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-year {
    flex: 1;
    text-align: right;
    padding-right: 3rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: #3498db;
}

.timeline-item:nth-child(even) .timeline-year {
    text-align: left;
    padding-right: 0;
    padding-left: 3rem;
}

.timeline-content {
    flex: 2;
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: #3498db;
    border-radius: 50%;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: auto;
    right: -10px;
}

.timeline-content h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: #666;
}

/* 分支机构样式 */
.company-branches {
    margin-top: 4rem;
}

.branches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.branch-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.branch-card h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.branch-card p {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    color: #666;
}

.branch-card i {
    margin-right: 1rem;
    color: #3498db;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .intro-content {
        flex-direction: column;
        gap: 2rem;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        flex-direction: column;
        margin-left: 2rem;
    }

    .timeline-item:nth-child(even) {
        flex-direction: column;
    }

    .timeline-year {
        text-align: left;
        padding: 0;
        margin-bottom: 1rem;
    }

    .timeline-item:nth-child(even) .timeline-year {
        padding: 0;
    }

    .timeline-content {
        width: 100%;
    }

    .timeline-content::before {
        left: -30px;
    }

    .timeline-item:nth-child(even) .timeline-content::before {
        left: -30px;
        right: auto;
    }
}

/* 通用卡片网格样式 */
.card-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
}

.info-card {
    flex: 1;
    min-width: 300px;
    max-width: 380px;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.3s;
    text-align: center;
}

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

.info-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.info-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.info-card img {
    max-width: 100%;
    height: auto;
    margin-bottom: 1.5rem;
    border-radius: 4px;
}

.info-card .date {
    color: #3498db;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.info-card .company-logo {
    height: 60px;
    width: auto;
    margin: 1rem auto;
    object-fit: contain;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .card-grid {
        padding: 0 1rem;
    }
    
    .info-card {
        min-width: 100%;
    }
}

/* 联系我们页面样式 */
.contact-info {
    margin: 4rem 0;
}

.office-locations {
    display: flex;
    justify-content: space-between;
    gap: 4rem;
    margin-top: 2rem;
}

.location-card {
    flex: 1;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}

.location-icon {
    position: absolute;
    left: -60px;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.beijing-icon {
    width: 100%;
    height: 100%;
    stroke-width: 2;
    stroke: #3498db;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.location-card:hover .beijing-icon {
    stroke: #2c3e50;
    transform: scale(1.1);
}

.location-card h3 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.location-card p {
    margin-bottom: 1rem;
    color: #666;
    line-height: 1.6;
}

.location-card strong {
    color: #2c3e50;
    margin-right: 0.5rem;
}

@media (max-width: 768px) {
    .office-locations {
        flex-direction: column;
        gap: 2rem;
    }

    .location-icon {
        position: static;
        margin: 0 auto 1rem;
        transform: none;
    }
}