/* 公司概况页面样式 */

/* 关于我们区域 - 首页 */
.about {
    padding: 0;
    background: url('img/home/about/background.png') center/cover;
    position: relative;
    overflow: hidden;
}

.about .container {
    display: flex;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 80px 0;
    min-height: 600px;
    justify-content: space-between;
    width: 90%;
    max-width: 100%;
}

.about-left {
    flex: 0 0 50%;
    position: relative;
    z-index: 3;
    margin-left: 0;
    display: flex;
    align-items: center;
}

.about-left img {
    width: 100%;
    height: 550px;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.about-right {
    flex: 0 0 45%;
    padding: 60px 0;
}

.about-right h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 8px;
    font-weight: bold;
}

.about-right h3 {
    font-size: 14px;
    color: #4ade80;
    margin-bottom: 20px;
    font-weight: normal;
}

.about-right p {
    font-size: 13px;
    color: #666;
    margin-bottom: 12px;
    line-height: 1.6;
    text-align: justify;
}

.about-stats {
    display: flex;
    gap: 60px;
    margin: 40px 0;
    padding: 20px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-main {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.stat-number {
    font-size: 42px;
    font-weight: bold;
    color: #333;
}

.stat-label {
    font-size: 18px;
    color: #333;
    font-weight: normal;
}

.stat-desc {
    font-size: 14px;
    color: #999;
    margin-top: 8px;
}

/* 公司概况页面标签页 */
.about-tabs {
    padding: 30px 0;
}

.about-detail {
    display: flex;
    gap: 30px;
    width: 100%;
    margin: 0 auto;
    padding: 0;
}

.about-detail-image {
    flex: 0 0 50%;
    min-height: 400px;
}

.about-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.about-detail-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-detail-content h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
}

.about-detail-content h3 {
    font-size: 18px;
    color: #4ade80;
    margin-bottom: 20px;
    font-weight: normal;
}

.section-title {
    font-size: 24px;
    color: #ff0000;
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: bold;
}

.about-detail-content p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

/* 企业文化 */
.culture-item {
    margin-bottom: 20px;
}

.culture-item h4 {
    font-size: 16px;
    color: #1a4b94;
    margin-bottom: 8px;
}

.culture-item p {
    font-size: 15px;
    color: #666;
    margin-bottom: 0;
}

.culture-section {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

.culture-content {
    display: flex;
    gap: 30px;
}

.culture-image {
    flex: 0 0 50%;
    min-height: 400px;
}

.culture-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.culture-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.culture-text h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
}

.culture-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.culture-text strong {
    color: #333;
}

/* 发展历程 */
.history-section {
    width: 90%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

.history-content {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 50px;
}

.history-nav {
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn {
    width: 40px;
    height: 40px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #666;
    cursor: pointer;
    transition: all 0.3s;
}

.nav-btn:hover {
    background: #1a4b94;
    border-color: #1a4b94;
    color: white;
}

.history-image {
    flex: 0 0 40%;
}

.history-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.history-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.history-text h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
}

.history-text p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

.history-timeline {
    margin-top: 30px;
}

.timeline-horizontal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    padding: 20px 0;
}

.timeline-horizontal::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: #ddd;
    transform: translateY(-50%);
}

.timeline-year {
    position: relative;
    width: 50px;
    height: 50px;
    background: white;
    border: 2px solid #ddd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #666;
    z-index: 1;
    transition: all 0.3s;
    cursor: pointer;
}

.timeline-year:hover,
.timeline-year.active {
    background: #1a4b94;
    border-color: #1a4b94;
    color: white;
}

/* 可持续发展滚动 */
.sustainable-scroll {
    overflow: hidden;
    margin-top: 30px;
    position: relative;
}

.sustainable-track {
    display: flex;
    gap: 15px;
    animation: scrollLeft 20s linear infinite;
}

.sustainable-track img {
    width: 300px;
    height: 300px;
    object-fit: cover;
    border-radius: 4px;
    flex-shrink: 0;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .about .container {
        flex-direction: column;
    }
    
    .about {
        background: white;
    }
}

@media (max-width: 768px) {
    .about-stats {
        gap: 30px;
    }
    
    /* 关于我们适配 */
    .about .container {
        flex-direction: column;
        padding: 40px 20px;
    }
    
    .about-left,
    .about-right {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .about-left img {
        height: 300px;
    }
    
    .about-right h2 {
        font-size: 20px;
        text-align: center;
    }
    
    .about-right h3 {
        font-size: 12px;
        text-align: center;
    }
    
    .about-right p {
        font-size: 13px;
    }
    
    /* 企业文化适配 */
    .culture-content {
        flex-direction: column;
        padding: 40px 20px;
    }
    
    .culture-left,
    .culture-right {
        flex: 0 0 100%;
        width: 100%;
    }
    
    .culture-left h2 {
        font-size: 22px;
        text-align: center;
    }
    
    .culture-left p {
        font-size: 13px;
    }
    
    .culture-gallery {
        height: 200px;
    }
    
    .culture-item {
        width: 150px;
    }
    
    .culture-item img {
        height: 200px;
    }
    
    .culture-text h2 {
        font-size: 22px;
        text-align: center;
    }
    
    .culture-text p {
        font-size: 13px;
    }
    
    /* 发展历程适配 */
    .history .container {
        flex-direction: column;
        padding: 40px 20px;
    }
    
    .history-text h2 {
        font-size: 20px;
        text-align: center;
    }
    
    .history-text p {
        font-size: 13px;
    }
    
    .history-image {
        flex: 0 0 100%;
    }
    
    .timeline-horizontal {
        flex-direction: column;
        gap: 20px;
    }
    
    .timeline-horizontal::before {
        display: none;
    }
    
    .timeline-year {
        width: 40px;
        height: 40px;
        font-size: 12px;
    }
    
    /* 可持续发展适配 */
    .sustainable-scroll {
        padding: 0 10px;
    }
    
    .sustainable-track img {
        width: 200px;
        height: 200px;
    }
    
    /* 公司概况页面详情适配 */
    .about-detail {
        flex-direction: column;
        padding: 20px;
    }
    
    .about-detail-image {
        flex: 0 0 100%;
        min-height: 200px;
    }
    
    .about-detail-content h2 {
        font-size: 22px;
        text-align: center;
    }
    
    .about-detail-content h3 {
        font-size: 14px;
        text-align: center;
    }
    
    .about-detail-content p {
        font-size: 13px;
    }
    
    /* 企业文化部分适配 */
    .culture-section {
        padding: 20px;
    }
    
    .culture-content {
        flex-direction: column;
    }
    
    .culture-image {
        flex: 0 0 100%;
        min-height: 200px;
    }
    
    .culture-text {
        padding: 20px 0;
    }
    
    .culture-text h2 {
        font-size: 22px;
    }
    
    .culture-text p {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .about-left img {
        height: 200px;
    }
    
    .about-right h2 {
        font-size: 18px;
    }
    
    .culture-left h2 {
        font-size: 18px;
    }
    
    .culture-item {
        width: 120px;
    }
    
    .culture-item img {
        height: 160px;
    }
    
    .history-text h2 {
        font-size: 18px;
    }
    
    .timeline-year {
        width: 35px;
        height: 35px;
        font-size: 11px;
    }
    
    .sustainable-track img {
        width: 150px;
        height: 150px;
    }
}