.about-struc{width:100%;height:11.06rem;background:url(../img/156.eae32ad7.png);text-align:center}.about-struc img{margin-top:.6rem;width:10.39rem;height:9.73rem}@media (max-width:700px){.about-struc{width:100%;height:16.59rem;background:url(../img/156.eae32ad7.png);text-align:center}.about-struc img{margin-top:.6rem;width:15.585rem;height:14.595rem}}