.brand-area{
    background:; 
}

.product-area{
    overflow:hidden;
    background:rgba(213,213,213,0.13); 
}

.introduce-area{
    overflow:hidden;
    background:rgba(255,255,255,0.02);
}

.testimonial-area{
    overflow:hidden;
    background:rgb(255,255,255); 
}

.service-area{
    background:rgba(255,255,255,0.32);
}

.innovation-area{
    overflow:hidden;
    background:; 
}

.blog-area{
    overflow:hidden;
    background:;
}

.case-area{
    overflow:hidden;
    background:rgba(213,213,213,0.05); 
}