/* 关于我们页面专用样式 */

/* 面包屑导航 */
.breadcrumb {
    background: #f8f9fa;
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb a {
    color: #007bff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #0056b3;
}

.breadcrumb .separator {
    color: #6c757d;
}

.breadcrumb .current {
    color: #495057;
    font-weight: 500;
}

/* 关于我们头部 */
.about-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0 60px;
    text-align: center;
}

.about-intro h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.about-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 公司简介 */
.company-intro {
    padding: 80px 0;
    background: #fff;
}

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

.intro-text h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 30px;
    position: relative;
}

.intro-text h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.intro-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    margin-bottom: 25px;
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 10px;
    font-weight: 700;
}

.stat-item p {
    color: #666;
    font-size: 1rem;
    margin: 0;
}

.intro-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

/* 发展历程 */
.development-history {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
}

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

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

.timeline-year {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.1rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.timeline-item:nth-child(odd) .timeline-year {
    margin-right: 30px;
}

.timeline-item:nth-child(even) .timeline-year {
    margin-left: 30px;
}

.timeline-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    flex: 1;
    position: relative;
    z-index: 1;
}

.timeline-content h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 企业文化 */
.corporate-culture {
    padding: 80px 0;
    background: #fff;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.culture-item {
    text-align: center;
    padding: 40px 30px;
    background: #f8f9fa;
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.culture-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.culture-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.culture-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.culture-item h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.culture-item p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 团队介绍 */
.team-intro {
    padding: 80px 0;
    background: #f8f9fa;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.team-member {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.member-avatar {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 25px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    font-size: 3rem;
    color: white;
}

.team-member h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.team-member p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 联系我们 */
.contact-section {
    padding: 80px 0;
    background: #fff;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.contact-icon {
    font-size: 2.5rem;
    margin-right: 25px;
    min-width: 60px;
    text-align: center;
}

.contact-details h3 {
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.contact-details p {
    color: #666;
    margin: 0;
    font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-intro h1 {
        font-size: 2rem;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .company-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 50px;
    }
    
    .timeline-year {
        margin: 0 0 20px 0 !important;
        align-self: flex-start;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin-right: 0;
        margin-bottom: 20px;
    }
}

@media (max-width: 480px) {
    .about-header {
        padding: 60px 0 40px;
    }
    
    .company-intro,
    .development-history,
    .corporate-culture,
    .team-intro,
    .contact-section {
        padding: 60px 0;
    }
    
    .intro-text h2,
    .section-title {
        font-size: 2rem;
    }
    
    .stat-item h3 {
        font-size: 2rem;
    }
    
    .timeline-content {
        padding: 20px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.intro-text,
.intro-image,
.timeline-item,
.culture-item,
.team-member,
.contact-item {
    animation: fadeInUp 0.6s ease-out;
}

.timeline-item:nth-child(1) { animation-delay: 0.1s; }
.timeline-item:nth-child(2) { animation-delay: 0.2s; }
.timeline-item:nth-child(3) { animation-delay: 0.3s; }
.timeline-item:nth-child(4) { animation-delay: 0.4s; }
.timeline-item:nth-child(5) { animation-delay: 0.5s; }

.culture-item:nth-child(1) { animation-delay: 0.1s; }
.culture-item:nth-child(2) { animation-delay: 0.2s; }
.culture-item:nth-child(3) { animation-delay: 0.3s; }
.culture-item:nth-child(4) { animation-delay: 0.4s; }

.team-member:nth-child(1) { animation-delay: 0.1s; }
.team-member:nth-child(2) { animation-delay: 0.2s; }
.team-member:nth-child(3) { animation-delay: 0.3s; }

.contact-item:nth-child(1) { animation-delay: 0.1s; }
.contact-item:nth-child(2) { animation-delay: 0.2s; }
.contact-item:nth-child(3) { animation-delay: 0.3s; }