.footer{background-color:#3d3d3d}.footer .footer-top{display:grid;gap:20px;grid-template-columns:4fr 1fr;width:80%;padding:20px 0;margin:0 auto;color:#1da1f2}.footer .footer-top li{font-size:14px;line-height:30px}.footer .footer-top li a{color:#a5a5a5}.footer .footer-top .footer-nav{display:grid;grid-template-columns:repeat(6,1fr);border-right:1px solid #f2f2f2}.footer .footer-top .footer-nav .wei-xin,.footer .footer-top .footer-nav .xiao-cheng-xu{text-align:center}.footer .footer-top .footer-nav .wei-xin img,.footer .footer-top .footer-nav .xiao-cheng-xu img{width:110px}.footer .footer-top .footer-contact .contact{display:grid;grid-template-columns:1fr 5fr}.footer .footer-top .footer-contact .number{font-size:16px;color:#1da1f2}.footer .footer-top .footer-contact .email{color:#1da1f2}.footer .footer-bottom{padding:20px 0 52px;background-color:#3d3d3d}.footer .footer-bottom .content{display:flex;align-items:center;justify-content:space-between;width:80%;margin:0 auto;color:#a5a5a5;font-size:12px;line-height:30px}.footer .footer-bottom .content img{width:100%}.footer .footer-bottom .operate{height:0;visibility:hidden}@media (max-width:768px){.footer .footer-top{grid-template-columns:1fr}.footer .footer-top .footer-nav{grid-template-columns:repeat(2,1fr);border-right:none;gap:20px;text-align:center}.footer .operate{background:#fff;height:40px!important;visibility:visible!important;display:flex;justify-content:space-between;position:fixed;width:100%;bottom:0;padding:10px 0;z-index:999}.footer .operate .btn{flex:1;text-align:center;background:#1da1f3;color:#fff;height:40px;line-height:40px;border-radius:4px;margin:0 10px}}