/* 关于我们页面样式 */

/* 页面标题 */
.page-header {
    background: var(--gradient);
    padding: 150px 0 80px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 公司简介 */
.about-intro {
    padding: 100px 0;
    background: white;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-tag {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--dark);
}

.about-content p {
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--light);
    border-radius: 10px;
}

.highlight-item i {
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
}

.highlight-item span {
    font-weight: 600;
    color: var(--dark);
}

.about-image .image-placeholder {
    background: var(--gradient);
    border-radius: 20px;
    aspect-ratio: 4/3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-lg);
}

.about-image .image-placeholder i {
    font-size: 5rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.about-image .image-placeholder span {
    font-size: 1.1rem;
    opacity: 0.8;
}

/* 企业文化 */
.culture-section {
    padding: 100px 0;
    background: var(--light);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.culture-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.culture-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.culture-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    margin: 0 auto 25px;
}

.culture-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.culture-card p {
    color: var(--gray);
    line-height: 1.7;
}

/* 发展历程 */
.timeline-section {
    padding: 100px 0;
    background: white;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--gradient);
}

.timeline-item {
    display: flex;
    justify-content: flex-end;
    padding-right: 50%;
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 50%;
}

.timeline-year {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
}

.timeline-content {
    background: var(--light);
    padding: 25px 30px;
    border-radius: 15px;
    max-width: 350px;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 0;
    height: 0;
    border: 10px solid transparent;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    right: -20px;
    border-left-color: var(--light);
}

.timeline-item:nth-child(even) .timeline-content::before {
    left: -20px;
    border-right-color: var(--light);
}

.timeline-content h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark);
}

.timeline-content p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 核心优势 */
.advantages-section {
    padding: 100px 0;
    background: var(--light);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.advantage-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.advantage-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.advantage-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    opacity: 0.3;
    line-height: 1;
}

.advantage-content h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.advantage-content p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 联系我们 */
.contact-section {
    padding: 100px 0;
    background: white;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--light);
    border-radius: 15px;
    transition: all 0.3s;
}

.contact-item:hover {
    background: rgba(37, 99, 235, 0.05);
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    color: var(--gray);
    margin-bottom: 5px;
}

.contact-item p {
    font-size: 1.1rem;
    color: var(--dark);
    font-weight: 600;
}

.contact-item .en-name {
    font-size: 0.9rem;
    color: var(--gray);
    font-weight: normal;
    margin-top: 3px;
}

.contact-map .map-placeholder {
    background: var(--gradient);
    border-radius: 20px;
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-lg);
}

.contact-map .map-placeholder i {
    font-size: 5rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.contact-map .map-placeholder span {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* 响应式 */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .about-image {
        order: -1;
    }
    
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 80px;
        padding-right: 0;
        justify-content: flex-start;
    }
    
    .timeline-year {
        left: 30px;
        transform: translateX(-50%);
    }
    
    .timeline-content::before,
    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        left: -20px;
        right: auto;
        border-right-color: var(--light);
        border-left-color: transparent;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 120px 0 60px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .about-content h2 {
        font-size: 1.8rem;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-content {
        max-width: none;
    }
    
    .advantage-item {
        flex-direction: column;
        text-align: center;
    }
}