@media (max-width: 640px) {
    .customer-showcase {
        padding: 40px 16px 60px;
    }

    .customer-grid {
        gap: 20px;
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .customer-card h3 {
        margin: 16px 12px 6px;
    }
}

@media (min-width: 641px) and (max-width: 1024px) {
    .customer-showcase {
        padding: 50px 32px 70px;
    }

    .customer-grid {
        gap: 26px;
    }
}

@media (min-width: 1400px) {
    .customer-showcase {
        padding: 70px 40px 90px;
    }

    .customer-grid {
        gap: 34px;
    }
}

/* ========== 移动端 Banner 完整修复 ========== */
@media (max-width: 768px) {
    .banner {
        position: relative;
        min-height: 200px;
    }

    .banner img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        object-position: center;
    }

    .banner-content {
        position: absolute;
        left: 0;
        right: 0;
        top: 60%;
        transform: translateY(-50%);
        text-align: center;
        padding: 0 20px;
        z-index: 5;
    }

    .banner-content h2 {
        font-size: 26px;
        color: #fff;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
        animation: slideUpFadeIn 0.6s ease forwards;
    }

    .banner-content p {
        font-size: 14px;
        color: #fff;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
        margin-top: 10px;
        animation: slideUpFadeIn 0.6s ease 0.3s forwards;
    }
}

@media (max-width: 480px) {
    .banner {
        min-height: 200px;
    }

    .banner img {
        height: 200px;
    }

    .banner-content h2 {
        font-size: 20px;
    }

    .banner-content p {
        font-size: 12px;
        margin-top: 12px;
    }
}