/* About页面专用样式 */

/* 页面头部样式 - 使用金属主题变量 */
.page-header {
    background: var(--gradient-primary);
    padding: 120px 0 80px;
    color: var(--text-white);
    text-align: center;
}

.page-title {
    font-family: 'Oswald', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.page-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 公司介绍区域 */
.about-company {
    padding: 80px 0;
    background: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-family: 'Oswald', sans-serif;
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.about-text h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.8rem;
    color: var(--text-primary);
    margin: 2rem 0 1rem 0;
    font-weight: 600;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

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

.about-image img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.about-image:hover img {
    transform: translateY(-5px);
}

/* 我们的优势区域 */
.our-advantages {
    padding: 80px 0;
    background: #f8f9fa;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card {
    background: #fff;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.advantage-icon i {
    font-size: 2rem;
    color: #fff;
}

.advantage-card h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.advantage-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    font-weight: 400;
}

/* 认证和荣誉区域 */
.certifications {
    padding: 80px 0;
    background: #fff;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.certification-item {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.certification-item:hover {
    border-color: var(--metal-primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px var(--shadow-medium);
}

.certification-item img {
    width: 80px;
    height: 80px;
    border-radius: 10px;
    margin-bottom: 1rem;
    object-fit: cover;
}

.certification-item h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.certification-item p {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

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

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.team-member {
    background: #fff;
    padding: 2rem;
    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-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1.5rem;
    border: 4px solid var(--metal-primary);
}

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

.team-member h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.team-member .position {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 1rem;
    font-weight: 500;
}

.team-member .bio {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    font-weight: 400;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .page-subtitle {
        font-size: 1.1rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    .about-text h3 {
        font-size: 1.5rem;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .certifications-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .about-text h2 {
        font-size: 1.8rem;
    }
    
    .advantage-card,
    .certification-item,
    .team-member {
        padding: 1.5rem;
    }
}