/* 关于我们页完整样式 */

/* 公司介绍头部 */
.about-hero {
    padding: 8rem 0 var(--space-xl);
    background: linear-gradient(135deg, 
        rgba(10, 14, 23, 0.95) 0%, 
        rgba(40, 20, 60, 0.85) 100%);
    position: relative;
    overflow: hidden;
    margin-top: 80px;
    text-align: center;
}

.about-hero:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 217, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(138, 43, 226, 0.1) 0%, transparent 40%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

.hero-content .page-title {
    font-size: 3.5rem;
    margin-bottom: var(--space-sm);
    text-align: center;
}

.hero-content .page-subtitle {
    font-size: 1.4rem;
    margin-bottom: var(--space-xl);
    color: var(--color-accent-cyan);
    text-align: center;
}

.intro-text p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    text-align: left;
}

/* 发展历程时间线 */
.timeline-section {
    padding: var(--space-xxl) 0;
    background: linear-gradient(180deg, 
        transparent 0%, 
        rgba(0, 217, 255, 0.05) 100%);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--space-xxl) auto 0;
    padding: 0 var(--space-xl);
}

.timeline:before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, 
        transparent, 
        var(--color-accent-blue), 
        transparent);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-xxl);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    animation: slide-in-left 0.6s ease forwards;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
    animation: slide-in-right 0.6s ease forwards;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-date {
    flex: 0 0 100px;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, 
        var(--color-accent-blue) 0%, 
        var(--color-accent-purple) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    z-index: 2;
    position: relative;
    box-shadow: 0 5px 20px rgba(0, 217, 255, 0.3);
}

.timeline-content {
    flex: 1;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin: 0 var(--space-xl);
    position: relative;
    z-index: 1;
    transition: all var(--transition-regular);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: var(--space-xl);
    margin-right: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: var(--space-xl);
    margin-left: 0;
}

.timeline-content:hover {
    border-color: var(--color-accent-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
}

.timeline-content h3 {
    color: var(--color-accent-cyan);
    margin-bottom: var(--space-sm);
    font-size: 1.3rem;
}

.timeline-content p {
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* 团队介绍 */
.team-section {
    padding: var(--space-xxl) 0;
    background: var(--color-card-bg);
    border-radius: var(--radius-xl);
    margin: var(--space-xxl) 0;
    border: 1px solid var(--color-border);
}

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

.team-member {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    transition: all var(--transition-regular);
    text-align: left;
}

.team-member:hover {
    border-color: var(--color-accent-blue);
    transform: translateY(-10px);
    box-shadow: var(--shadow-card);
}

.member-photo {
    flex-shrink: 0;
}

.photo-placeholder {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, 
        var(--color-accent-blue) 0%, 
        var(--color-accent-purple) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
}

.member-info {
    flex: 1;
}

.member-info h3 {
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
    font-size: 1.3rem;
}

.member-title {
    color: var(--color-accent-blue);
    font-weight: 600;
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.member-bio {
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

/* 合作伙伴 */
.partners-section {
    padding: var(--space-xxl) 0;
    text-align: center;
    background: linear-gradient(180deg, 
        rgba(0, 217, 255, 0.05) 0%, 
        transparent 100%);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.partner-logo {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    transition: all var(--transition-regular);
    position: relative;
    overflow: hidden;
}

.partner-logo:hover {
    border-color: var(--color-accent-blue);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.partner-logo:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--color-accent-blue), 
        var(--color-accent-purple));
    opacity: 0;
    transition: opacity var(--transition-regular);
}

.partner-logo:hover:before {
    opacity: 1;
}

.logo-placeholder {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-accent-cyan);
    text-align: center;
    width: 100%;
}

/* 联系我们 */
.contact-section {
    padding: var(--space-xxl) 0;
    background: linear-gradient(135deg, 
        rgba(10, 14, 23, 0.9) 0%, 
        rgba(20, 30, 60, 0.8) 100%);
    border-radius: var(--radius-xl);
    margin-top: var(--space-xxl);
    border: 1px solid var(--color-border);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xxl);
    margin-top: var(--space-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-regular);
}

.info-item:hover {
    border-color: var(--color-accent-blue);
    transform: translateX(5px);
    box-shadow: var(--shadow-hover);
}

.info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, 
        var(--color-accent-blue) 0%, 
        var(--color-accent-purple) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon i {
    color: white;
    font-size: 1.2rem;
}

.info-content {
    flex: 1;
}

.info-content h4 {
    color: var(--color-accent-cyan);
    margin-bottom: var(--space-xs);
    font-size: 1.2rem;
}

.info-content p {
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
    font-size: 1rem;
}

/* 联系表单 */
.contact-form {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
}

.contact-form h3 {
    color: var(--color-accent-cyan);
    margin-bottom: var(--space-lg);
    font-size: 1.5rem;
    text-align: center;
}

#contact-form .form-group {
    margin-bottom: var(--space-lg);
}

#contact-form input,
#contact-form textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

#contact-form input:focus,
#contact-form textarea:focus {
    outline: none;
    border-color: var(--color-accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1);
    background: rgba(255, 255, 255, 0.08);
}

#contact-form textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

#contact-form button[type="submit"] {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: var(--space-md);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .timeline-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .timeline-item:nth-child(even) {
        flex-direction: column;
    }
    
    .timeline:before {
        left: 0;
    }
    
    .timeline-date {
        margin-bottom: var(--space-lg);
    }
    
    .timeline-content {
        margin: 0 !important;
        width: 100%;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .contact-form {
        order: 1;
    }
    
    .contact-info {
        order: 2;
    }
    
    .team-member {
        flex-direction: column;
        text-align: center;
    }
    
    .member-info {
        text-align: center;
    }
    
    .info-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-content .page-title {
        font-size: 2.5rem;
    }
    
    .hero-content .page-subtitle {
        font-size: 1.2rem;
    }
    
    .timeline-date {
        width: 80px;
        height: 80px;
        font-size: 1.2rem;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .partner-logo {
        height: 100px;
    }
}

@media (max-width: 576px) {
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-text p {
        font-size: 1.1rem;
    }
}