/* ==================== 关于页样式 ==================== */

/* 公司简介 */
.about-hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e8f4fc 100%);
}

.about-hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-hero-content {
    max-width: 560px;
}

.about-hero-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.about-hero-desc {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-hero-img {
    border-radius: 12px;
    overflow: hidden;
}

/* 发展历程 */
.timeline-section {
    background: #fff;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 80px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 74px;
    top: 8px;
    width: 14px;
    height: 14px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-year {
    width: 60px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    flex-shrink: 0;
    text-align: right;
}

.timeline-content {
    padding-left: 20px;
    flex: 1;
}

.timeline-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* 核心团队 */
.team-section {
    background: var(--bg-gray);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.team-card {
    text-align: center;
}

.team-avatar {
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
}

.team-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.team-position {
    font-size: 14px;
    color: var(--text-gray);
}

/* 企业文化 */
.culture-section {
    background: #fff;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.culture-card {
    text-align: center;
    padding: 40px 32px;
    background: var(--bg-gray);
    border-radius: 12px;
}

.culture-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.culture-icon svg {
    width: 32px;
    height: 32px;
    color: #fff;
}

.culture-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.culture-desc {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.6;
}

/* 图片占位符 */
.img-placeholder {
    width: 100%;
    background: linear-gradient(135deg, #e8f4fc 0%, #d4e9f7 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
    border: 2px dashed #ccc;
}

.img-placeholder span {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
}

.img-placeholder small {
    font-size: 12px;
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
}

.mobile-nav-item {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-item a {
    display: block;
    padding: 16px 0;
    font-size: 16px;
}

.mobile-nav-item.active a {
    color: var(--primary-color);
}

/* 响应式 */
@media (max-width: 1200px) {
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .about-hero-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-hero-content {
        max-width: 100%;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .timeline::before {
        left: 40px;
    }
    
    .timeline-item::before {
        left: 34px;
    }
    
    .timeline-year {
        width: 30px;
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .about-hero-title {
        font-size: 28px;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline {
        padding-left: 20px;
    }
    
    .timeline::before {
        left: 0;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 8px;
        padding-left: 24px;
    }
    
    .timeline-item::before {
        left: -6px;
        top: 0;
    }
    
    .timeline-year {
        width: auto;
        text-align: left;
    }
}