/* 关于我们页面样式 */
body {
    background-color: #fff
}
/* 顶部横幅 */
.about-banner {
    background: linear-gradient(135deg, #234565 0%, #2f5c87 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.banner-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-banner h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.about-banner p {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

/* 横幅统计信息 */
.banner-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 50px;
    flex-wrap: wrap;
    gap: 30px;
}

.stat-item {
    text-align: center;
    flex: 1;
    min-width: 150px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}

.stat-label {
    display: block;
    font-size: 1rem;
    opacity: 0.9;
}

/* 通用样式 */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #333;
    position: relative;
}

.section-header h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #0056b3;
    margin: 20px auto 0;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.container-about {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 公司简介 */
.company-intro {
    background: #f8f9fa;
}

.intro-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.intro-text {
    flex: 1;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.intro-text p {
    margin-bottom: 20px;
}

.intro-text p strong {
    color: #333;
}

/* 公司简介特点 */
.intro-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 40px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 200px;
}

.feature-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-item span {
    font-weight: 500;
    color: #333;
}

.intro-image {
    flex: 1;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 发展历程 */
.company-history {
    background: white;
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: #e9ecef;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
    border-radius: 3px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    top: 15px;
    border-radius: 50%;
    background-color: white;
    border: 4px solid #0056b3;
    z-index: 1;
}

.timeline-item:nth-child(even)::after {
    left: -10px;
}

.timeline-date {
    font-size: 1.2rem;
    font-weight: 700;
    color: #0056b3;
    margin-bottom: 10px;
}

.timeline-content {
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: #333;
}

.timeline-content p {
    color: #555;
    line-height: 1.6;
}

/* 企业文化 */
.company-culture {
    background: linear-gradient(135deg, #234565 0%, #2f5c87 100%);
    color: white;
}

.company-culture .section-header h2,
.company-culture .section-header p {
    color: white;
}

.company-culture .section-header h2::after {
    background: white;
}

.culture-content {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.culture-item {
    flex: 1;
    min-width: 300px;
    padding: 50px 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, background 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.culture-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.culture-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
}

.culture-item h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: white;
}

.culture-item p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

/* 资质证书 */
.company-certificates {
    background: white;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.certificate-item {
    text-align: center;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.certificate-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.certificate-item img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 15px;
}

.certificate-item p {
    font-size: 1rem;
    color: #555;
    font-weight: 500;
}

/* 联系我们 */
.contact-section {
    background: #f8f9fa;
}

.contact-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.contact-info {
    flex: 1;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.info-icon {
    width: 40px;
    height: 40px;
    background: #0056b3;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-icon svg {
    fill: white;
}

.info-icon img {
    width: 24px;
    height: 24px;
    display: block;
}

.info-text h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: #333;
}

.info-text p {
    font-size: 1.1rem;
    color: #555;
    margin: 0;
}

.contact-map {
    flex: 1;
}

.contact-map img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 合作伙伴 */
.partners {
    background: white;
}

.partners-grid {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
}

.partners-image {
    text-align: center;
}

.partners-image {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.partners-image img {
    width: 100%;
    height: auto;
    display: block;
}

.partner-item {
    text-align: center;
    flex: 1;
    min-width: 150px;
    max-width: 200px;
}

.partner-item img {
    width: 100%;
    height: 100px;
    object-fit: contain;
    margin-bottom: 15px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.partner-item:hover img {
    opacity: 1;
}

.partner-item p {
    font-size: 1rem;
    color: #555;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .intro-content {
        flex-direction: column;
        text-align: center;
    }

    .intro-text,
    .intro-image {
        flex: 1 1 100%;
    }

    .intro-features {
        justify-content: center;
    }

    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item::after,
    .timeline-item:nth-child(even)::after {
        left: 21px;
    }

    .culture-content {
        flex-direction: column;
        align-items: center;
    }

    .culture-item {
        width: 100%;
        max-width: 500px;
    }

    .contact-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-info,
    .contact-map {
        flex: 1 1 100%;
    }

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

    .partners-grid {
        flex-direction: column;
        align-items: center;
    }

    .partner-item {
        max-width: 300px;
        width: 100%;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .about-banner {
        padding: 100px 0 60px;
    }

    .about-banner h1 {
        font-size: 2.5rem;
    }

    .about-banner p {
        font-size: 1.1rem;
    }

    .banner-stats {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .stat-item {
        min-width: 200px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .section-header p {
        font-size: 1rem;
    }

    .intro-features {
        flex-direction: column;
        align-items: center;
    }

    .feature-item {
        width: 100%;
        max-width: 400px;
    }

    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 576px) {
    section {
        padding: 40px 0;
    }

    .about-banner h1 {
        font-size: 2rem;
    }

    .about-banner p {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .timeline-content {
        padding: 15px;
    }

    .culture-item {
        padding: 30px 20px;
    }

    .info-item {
        margin-bottom: 20px;
    }

    .certificates-grid {
        grid-template-columns: 1fr;
    }
}