/* banner 区域 */
.about-banner {
    background: #0a0d16;
    color: #fff;
    padding: 0;
}
.about-banner-bg {
    background: url('../images/about-banner-bg.jpg') center/cover no-repeat;
    padding: 64px 0 48px 0;
    min-height: 220px;
    position: relative;
}
.about-banner h1 {
    font-size: 32px;
    margin-bottom: 18px;
    color: #fff;
    text-align: center;
}
.about-banner p {
    font-size: 18px;
    color: #b0b8c9;
    text-align: center;
    margin-bottom: 0;
}

/* 公司简介 */
.about-company {
    background: #fff;
    padding: 64px 0 32px 0;
}
.about-company-flex {
    display: flex;
    align-items: flex-start;
    gap: 48px;
}
.about-company-info {
    flex: 1;
}
.about-company-info h2 {
    font-size: 28px;
    color: #222;
    margin-bottom: 16px;
    text-align: center;
}
.about-company-desc {
    color: #2563ff;
    font-size: 18px;
    margin-bottom: 18px;
    text-align: center;
    font-weight: 500;
}
.about-company-text {
    color: #444;
    font-size: 15px;
    margin-bottom: 32px;
    line-height: 1.8;
}
.about-company-text p {
    margin-bottom: 12px;
}
.about-company-stats {
    display: flex;
    gap: 32px;
    margin-top: 16px;
    justify-content: center;
}
.about-company-stats .stat-item {
    text-align: center;
}
.about-company-stats .stat-item span {
    display: block;
    font-size: 22px;
    color: #2563ff;
    font-weight: bold;
}
.about-company-stats .stat-item p {
    color: #888;
    font-size: 14px;
    margin-top: 4px;
}
.about-company-img {
    width: 320px;
    text-align: center;
}
.about-company-img img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.about-company-img-desc {
    color: #888;
    font-size: 14px;
    margin-top: 8px;
}

/* 服务优势 */
.about-advantage {
    background: #f7f8fa;
    padding: 64px 0 32px 0;
    text-align: center;
}
.about-advantage h2 {
    font-size: 28px;
    color: #222;
    margin-bottom: 16px;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 40px;
}
.advantage-item {
    background: #fff;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 32px rgba(37,99,255,0.10);
}
.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: #eaf1ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.advantage-icon img {
    width: 32px;
    height: 32px;
}
.advantage-item h3 {
    font-size: 18px;
    color: #222;
    margin-bottom: 12px;
}
.advantage-item p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

/* 企业文化 */
.about-culture {
    background: linear-gradient(90deg, #eaf1ff 0%, #fff 100%);
    padding: 64px 0 32px 0;
}
.about-culture-flex {
    display: flex;
    gap: 48px;
    align-items: flex-start;
}
.about-culture-content {
    flex: 1;
}
.about-culture-content h2 {
    font-size: 28px;
    color: #222;
    margin-bottom: 16px;
    text-align: center;
}
.about-culture-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
}
.culture-value {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.culture-value h4 {
    font-size: 16px;
    color: #2563ff;
    margin-bottom: 8px;
    font-weight: 600;
}
.culture-value p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}
.about-culture-imgs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    width: 320px;
}
.about-culture-imgs img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

/* 发展历程 */
.about-history {
    background: #fff;
    padding: 64px 0 64px 0;
    text-align: center;
}
.about-history h2 {
    font-size: 28px;
    color: #222;
    margin-bottom: 16px;
}
.about-history-main {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 32px;
    text-align: left;
}
.about-history-main img {
    width: 220px;
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.about-history-desc {
    flex: 1;
}
.about-history-date {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 8px;
    color: #2563ff;
}
.about-history-text {
    color: #444;
    font-size: 15px;
    line-height: 1.6;
}
.about-history-text p {
    margin-bottom: 12px;
}
.about-history-timeline {
    display: flex;
    justify-content: center;
    gap: 32px;
}
.about-history-dot {
    background: #fff;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    font-size: 13px;
    color: #2563ff;
    font-weight: bold;
    position: relative;
    border: 2px solid #eaf1ff;
}
.about-history-dot span {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    color: #888;
    font-size: 13px;
    font-weight: normal;
    white-space: nowrap;
}

/* 联系我们 */
.about-contact {
    background: #181b23;
    color: #fff;
    padding: 64px 0 32px 0;
    text-align: center;
}
.about-contact h2 {
    font-size: 28px;
    color: #fff;
    margin-bottom: 16px;
}
.contact-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    gap: 48px;
}
.contact-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    flex: 1;
}
.contact-item {
    text-align: left;
}
.contact-item h4 {
    font-size: 16px;
    color: #2563ff;
    margin-bottom: 8px;
}
.contact-item p {
    color: #b0b8c9;
    font-size: 15px;
    margin: 0;
}
.contact-action {
    text-align: center;
}
.contact-action .btn-primary {
    margin-bottom: 12px;
}
.contact-action p {
    color: #b0b8c9;
    font-size: 14px;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 900px) {
    .about-company-flex, .about-culture-flex, .about-history-main {
        flex-direction: column;
        gap: 24px;
    }
    .about-culture-imgs, .about-company-img {
        width: 100%;
    }
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .about-culture-values {
        grid-template-columns: 1fr;
    }
    .contact-content {
        flex-direction: column;
        gap: 32px;
    }
    .contact-info {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 600px) {
    .advantage-grid {
        grid-template-columns: 1fr;
    }
    .about-company-stats {
        flex-direction: column;
        gap: 16px;
    }
    .about-history-timeline {
        flex-wrap: wrap;
        gap: 16px;
    }
}