:root{font-family:"Microsoft YaHei",sans-serif;color:#333;background:#d9d9f3}*{box-sizing:border-box}body{margin:0}main{max-width:1080px;margin:24px auto;padding:20px}a{color:#303088}h1{font-size:26px}button,input,textarea{font:inherit;border:1px solid #a5a5c5;border-radius:0;padding:9px 12px;background:#f9f9ff;color:#303049}button{cursor:pointer}button:disabled{opacity:.6;cursor:default}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #5555a5;outline-offset:2px}[hidden]{display:none!important}#chat-status{color:#9f2536;overflow-wrap:anywhere}#chat-status:empty{display:none}.chat-layout{display:grid;grid-template-columns:230px minmax(0,1fr);background:#ffffffa8;border:1px solid #b9b9d5}aside{padding:16px;border-right:1px solid #b9b9d5;min-width:0}.search-row{display:flex;gap:4px;margin:8px 0}.search-row input{min-width:0;width:100%}#chat-threads,#chat-users{display:flex;flex-direction:column;gap:6px}#chat-users:empty{display:none}#chat-users{margin-bottom:16px}#chat-threads button{text-align:left;overflow-wrap:anywhere}#chat-threads button[aria-current=true]{background:#303088;color:white}.conversation{padding:18px;min-width:0}.conversation header{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.conversation h2{font-size:20px;overflow-wrap:anywhere;margin:0 0 14px}#chat-connection{font-size:12px;color:#666}#chat-messages{list-style:none;margin:12px 0;padding:0;height:52vh;min-height:220px;max-height:620px;overflow:auto;overscroll-behavior:contain}#chat-messages li{margin:0 0 14px;padding:12px;background:#f8f8ff;border-left:3px solid #b4b4d4;max-width:90%;width:fit-content;min-width:120px}#chat-messages li.mine{margin-left:auto;background:#e6e6fb;border-color:#7575af}#chat-messages small{font-size:12px;color:#666;overflow-wrap:anywhere}#chat-messages p{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.6;margin:8px 0 0}#chat-messages img{display:block;max-width:100%;max-height:320px;height:auto;margin-top:8px}#chat-compose{border-top:1px solid #b9b9d5;padding-top:12px}#chat-body{display:block;resize:vertical;width:100%;max-height:260px;min-height:72px}.compose-actions{display:flex;gap:8px;margin-top:8px;align-items:center}#chat-send{margin-left:auto;background:#303088;color:white}.file-label{position:relative;cursor:pointer;padding:9px 12px;border:1px solid #a5a5c5;background:#f9f9ff}.file-label input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}#chat-emojis{display:flex;flex-wrap:wrap;gap:4px;padding-top:8px}#chat-preview{display:flex;gap:10px;align-items:center;margin-top:8px}#chat-preview img{max-height:100px;max-width:160px}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@media(max-width:680px){main{padding:12px;margin:12px auto}.chat-layout{grid-template-columns:minmax(0,1fr)}aside{border-right:0;border-bottom:1px solid #b9b9d5;padding:12px}#chat-threads{flex-direction:row;flex-wrap:wrap;max-height:140px;overflow:auto}#chat-threads button{max-width:100%}.conversation{padding:12px}#chat-messages{height:45vh}#chat-messages li{max-width:96%}}
.search-row button{flex:0 0 auto;white-space:nowrap}