/* 合作流程区域样式 */
.process-grid {
    margin-top: var(--spacing-md);
}

.process-item {
    text-align: center;
    position: relative;
}

/* 连接线效果 (Desktop only) */
@media (min-width: 993px) {
    .process-item:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 40px;
        right: -50%;
        width: 100%;
        height: 0;
        background-color: var(--border-color);
        z-index: 1;
    }
}

.process-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 20px;
    position: relative;
    z-index: 2;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

.process-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.process-item h4 {
    font-size: 25px;
    color: #333;
    font-weight: 500;
    letter-spacing: 2px;
}

/* 悬停效果 */
.process-item:hover .process-icon {
    transform: scale(1.1) rotate(10deg);
    background-color: var(--secondary-color);
    box-shadow: 0 4px 15px rgba(30, 58, 95, 0.3);
}

/* 响应式调整 */
@media (max-width: 992px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .grid-4 {
        grid-template-columns: 1fr;
    }
}