.contact-layout{max-width:1480px;margin-left:auto;margin-right:auto} .wechat-contact{grid-template-columns:minmax(0,1fr) 280px;min-height:286px} .wechat-qr{padding:12px 12px 14px} .wechat-qr img{width:240px;height:240px} @media(max-width:1100px){.contact-layout{max-width:1180px}.wechat-contact{grid-template-columns:minmax(0,1fr) 250px}.wechat-qr img{width:210px;height:210px}} @media(max-width:820px){.contact-layout{max-width:none}.wechat-contact{grid-template-columns:1fr;min-height:0}.wechat-qr{justify-self:center;text-align:center}.wechat-qr img{width:210px;height:210px}}