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0;padding:20px;border:1px dashed #b8c7bb}.wechat-generate label{margin-bottom:14px}@media(max-width:850px){.letter-header{flex-wrap:wrap}.letter-header nav{order:3;width:100%;justify-content:center;gap:22px}.letter-hero{grid-template-columns:1fr;gap:40px;padding:45px 0}.letter-hero h1{font-size:41px}.letter-feature>.remote-photo,.letter-feature>img{height:280px}.letter-manifesto{grid-template-columns:1fr;gap:15px;padding:30px 6%}.letter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.wechat-workspace{grid-template-columns:1fr}.wechat-list{grid-template-columns:repeat(2,minmax(0,1fr))}.wechat-fields{grid-template-columns:1fr}.wechat-panel{padding:20px}}@media(max-width:520px){.letter-top span:last-child{display:none}.letter-top{font-size:8px;letter-spacing:1px}.letter-grid{grid-template-columns:1fr}.letter-logo strong{font-size:16px}.letter-logo>span{font-size:25px}.letter-header nav{gap:18px;font-size:12px}.letter-languages{gap:8px}.letter-hero 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