body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}

.nav-link {
    position: relative;
}

    .nav-link::after {
        content: '';
        position: absolute;
        width: 0;
        height: 2px;
        bottom: -5px;
        left: 50%;
        background-color: #3b82f6;
        transition: all 0.3s ease;
        transform: translateX(-50%);
    }

    .nav-link:hover::after, .nav-link.active::after {
        width: 100%;
    }

.page-header {
    background-size: cover;
    background-position: center;
}

.timeline-container {
    position: relative;
}

    .timeline-container::before {
        content: '';
        position: absolute;
        width: 2px;
        background-color: #e5e7eb;
        top: 0;
        bottom: 0;
        left: 50%;
        margin-left: -1px;
    }

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

    .timeline-item::after {
        content: '';
        position: absolute;
        width: 20px;
        height: 20px;
        background-color: #3b82f6;
        border-radius: 50%;
        top: 0;
        left: 50%;
        transform: translateX(-50%);
        z-index: 1;
    }

.timeline-content {
    position: relative;
    width: 45%;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
}

@media (max-width: 768px) {
    .timeline-container::before {
        left: 40px;
    }

    .timeline-item::after {
        left: 40px;
    }

    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
    }
}

.team-card {
    transition: all 0.3s ease;
}

    .team-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }