.messages-layout{border:1px solid var(--line);background:#fff;border-radius:7px;grid-template-columns:390px 1fr;min-height:calc(100vh - 86px);display:grid;overflow:hidden}.conversation-list{border-right:1px solid var(--line)}.conversation-list>header{padding:22px}.conversation-link{border-top:1px solid var(--line);padding:18px 20px;display:block}.conversation-link.active{border-left:5px solid var(--blue);background:#e8f5fa}.conversation-link strong,.conversation-link small{display:block}.conversation-link small{color:var(--muted);margin-top:5px}.conversation-panel{flex-direction:column;min-width:0;display:flex}.conversation-panel>header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;padding:22px;display:flex}.conversation-panel>header>div{min-width:0}.conversation-panel>header>div strong,.conversation-panel>header>div small{display:block}.conversation-panel>header>div strong{text-overflow:ellipsis;overflow:hidden}.conversation-panel>header>div small{color:var(--muted);margin-top:5px}.conversation-document-link{white-space:nowrap;flex:none}.conversation-document-card{background:#f0f9fc;border:1px solid #b9d9e6;border-radius:8px;grid-template-columns:112px minmax(0,1fr);gap:18px;margin:18px 22px 0;padding:16px;display:grid}.conversation-document-preview{border:1px solid var(--line);background:#fff;border-radius:5px;height:142px;position:relative;overflow:hidden}.conversation-document-preview iframe{pointer-events:none;border:0;width:100%;height:100%}.conversation-document-preview span{color:#fff;background:#d83939;border-radius:3px;padding:3px 6px;font-size:10px;font-weight:800;position:absolute;bottom:6px;right:6px}.conversation-document-facts{min-width:0}.conversation-document-facts>strong{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.conversation-document-facts dl{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 16px;margin:12px 0;display:grid}.conversation-document-facts dl div{min-width:0}.conversation-document-facts dt{color:var(--muted);text-transform:uppercase;font-size:10px;font-weight:700}.conversation-document-facts dd{text-overflow:ellipsis;white-space:nowrap;margin:3px 0 0;overflow:hidden}.conversation-document-facts>.btn{display:inline-flex}.document-chat{border:1px solid var(--line);background:#fff;border-radius:7px;margin-top:25px;overflow:hidden}.conversation-panel .document-chat{border:0;border-radius:0;flex:1;margin:0}.conversation-panel .conversation-document-card+.document-chat{border-top:1px solid var(--line);margin-top:18px}.document-chat>header{border-bottom:1px solid var(--line);background:#f7fafb;justify-content:space-between;padding:18px 22px;display:flex}.document-chat>header strong,.document-chat>header small{display:block}.document-chat>header small{color:var(--muted);margin-bottom:5px}.chat-messages{background:#fbfdfd;flex-direction:column;gap:13px;min-height:260px;max-height:520px;padding:22px;display:flex;overflow:auto}.conversation-panel .chat-messages{flex:1;max-height:none}.chat-message{border:1px solid var(--line);background:#fff;border-radius:12px 12px 12px 3px;max-width:75%;padding:14px 16px}.chat-message.mine{background:#e8f6fb;border-color:#acd0df;border-radius:12px 12px 3px;align-self:flex-end}.chat-message>div{justify-content:space-between;gap:25px;display:flex}.chat-message small{color:var(--muted)}.chat-message p{margin:9px 0 0;line-height:1.55}.chat-empty{color:var(--muted);margin:auto}.chat-composer{border-top:1px solid var(--line);grid-template-columns:1fr auto;gap:12px;padding:18px;display:grid}.chat-composer textarea{border:1px solid var(--line);min-height:80px;font:inherit;resize:vertical;border-radius:5px;padding:13px;font-size:16px;line-height:1.5}.messages-empty{color:var(--muted);margin:auto}@media (width<=850px){.messages-layout{grid-template-columns:1fr}.conversation-list{border-right:0;border-bottom:1px solid var(--line)}.chat-message{max-width:90%}}@media (width<=560px){.conversation-panel>header{flex-direction:column;align-items:stretch}.conversation-document-link{text-align:center}.conversation-document-card{grid-template-columns:82px minmax(0,1fr);gap:12px;margin:12px;padding:12px}.conversation-document-preview{height:106px}.conversation-document-facts dl{grid-template-columns:repeat(2,minmax(0,1fr))}.conversation-document-facts>.btn{justify-content:center;width:100%}}.chat-composer{grid-template-columns:minmax(0,1fr)}.chat-composer textarea{box-sizing:border-box;width:100%;min-height:100px}.chat-composer .btn{align-self:auto}