.contack-us {
    padding: 4rem 0;
    max-width: 1600px;
    margin: 0 auto;
    overflow: hidden;
}

.contact-card {
    max-width: 1200px;
    margin: 0 auto;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    padding: 2.5rem;
    transform: translateY(30px);
    transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-card.loaded {
    transform: translateY(0);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.contact-header {
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
}

.contact-header h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    transform: scale(0.9);
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.2s;
}

.contact-card.loaded .contact-header h2 {
    transform: scale(1);
}

.contact-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #2980b9);
    margin: 0 auto;
    border-radius: 2px;
    transform: scaleX(0.5);
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.4s;
}

.contact-card.loaded .contact-divider {
    transform: scaleX(1);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr; /* 调整比例以适应地图 */
    gap: 2.5rem;
}

.marker-pulse {
    width: 100%;
    height: 100%;
    background: rgba(52, 152, 219, 0.8);
    border-radius: 50%;
    position: relative;
    animation: pulse 2s infinite;
}

.marker-pulse::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 14px;
    height: 14px;
    background: #2980b9;
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(52, 152, 219, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(52, 152, 219, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(52, 152, 219, 0);
    }
}

.office-list {
    display: flex;
    background: white;
    border-top: 1px solid #eee;
}

.office-item {
    padding: 1rem 1.5rem;
    flex: 1;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.office-item:hover {
    background: #f5f9ff;
    color: #3498db;
}

.office-item.active {
    border-bottom-color: #3498db;
    color: #3498db;
    font-weight: 500;
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
}