:root{color:#191919;font-synthesis:none;--brand:#2e7ce4;--muted:#888;--line:#e8e8e8;background:#e8ebee;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-weight:400}*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{cursor:default;opacity:.5}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}button{color:inherit;background:0 0;border:0}h1,h2,h3,p{margin:0}button,input,textarea{-webkit-tap-highlight-color:transparent}.workspace{background:#fff;max-width:1100px;height:100dvh;margin:auto;display:flex;position:relative;overflow:hidden}.list-pane{border-right:1px solid var(--line);flex-direction:column;flex-shrink:0;width:360px;min-height:0;display:flex}.list-header{padding:calc(20px + env(safe-area-inset-top)) 18px 0}.heading{justify-content:space-between;align-items:center;display:flex}h1{letter-spacing:.3px;font-size:22px}.connection{color:#a27627;align-items:center;gap:5px;font-size:11px;display:flex}.connection:before{content:"";background:currentColor;border-radius:100%;width:6px;height:6px}.connection.online{color:#36a46b}.agent{color:var(--muted);margin:10px 0 20px;font-size:12px}.search{color:#333;background:#f1f2f4;border:0;border-radius:6px;width:100%;padding:12px;font-size:14px;display:block}.search::placeholder{color:#969aa0}.filters{border-bottom:1px solid var(--line);gap:26px;margin-top:6px;display:flex}.filters button{color:#888;border-bottom:2px solid #0000;padding:15px 0 12px;font-size:13px}.filters button.active{color:var(--brand);border-bottom-color:var(--brand)}.filters small{margin-left:3px;font-size:11px}.conversation-list{flex:1;overflow:auto}.conversation{text-align:left;background:#fff;border-bottom:1px solid #f0f0f0;align-items:center;gap:12px;width:100%;padding:20px 18px;display:flex}.conversation.active{background:#f0f4f9}.avatar{color:#fff;background:#8192a5;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:17px;font-weight:600;display:flex}.conversation:nth-child(3n+2)>.avatar{background:#87a39c}.conversation:nth-child(3n)>.avatar{background:#a79487}.conversation-body{flex:1;min-width:0;display:block}.conversation-title{align-items:center;gap:5px;display:flex}.conversation-title strong{text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:15px;font-weight:500;overflow:hidden}.conversation-title time{color:#aaa;font-size:11px}.pending-dot{background:#fa5151;border-radius:50%;flex-shrink:0;width:6px;height:6px}.preview{color:#888;white-space:nowrap;text-overflow:ellipsis;align-items:center;gap:6px;margin-top:7px;font-size:13px;line-height:20px;display:flex;overflow:hidden}.badge{color:#fff;background:#fa5151;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;min-width:18px;height:18px;margin-left:auto;padding:0 5px;font-size:11px;display:flex}.source-label{color:#a0a4a9;text-overflow:ellipsis;white-space:nowrap;margin-top:6px;font-size:11px;display:block;overflow:hidden}.list-footer{min-height:44px;padding:13px 14px calc(13px + env(safe-area-inset-bottom));color:#9c9fa4;text-align:center;border-top:1px solid var(--line);justify-content:center;align-items:center;gap:14px;font-size:10px;display:flex}.list-footer button{color:var(--brand);font-size:12px}.empty{color:#999;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;height:100%;min-height:180px;padding:20px;font-size:14px;display:flex}.empty>span{color:#b8bec5;font-size:35px}.empty small{color:#aaa;font-size:12px;line-height:1.8}.chat-pane{background:#ededed;flex-direction:column;flex:1;min-width:0;min-height:0;display:flex;position:relative}.chat-header{padding:calc(12px + env(safe-area-inset-top)) 14px 12px;background:#f8f8f8;border-bottom:1px solid #e2e2e2;align-items:center;gap:12px;min-height:64px;display:flex}.chat-header h2{white-space:nowrap;text-overflow:ellipsis;font-size:16px;font-weight:600;overflow:hidden}.chat-header>div{flex:1;min-width:0}.chat-header small{color:#888;margin-top:4px;font-size:11px;display:block}.back{width:28px;padding:0;font-size:32px;line-height:28px}.info{letter-spacing:1px;font-size:24px}.source-bar{color:#92969b;white-space:nowrap;text-overflow:ellipsis;background:#f8f8f8;border-bottom:1px solid #e4e4e4;padding:10px 18px;font-size:11px;overflow:hidden}.source-bar>span{color:#587592;background:#e7edf3;border-radius:3px;margin-right:9px;padding:3px 5px;display:inline-block}.messages{overscroll-behavior:contain;flex:1;padding:10px 16px 24px;overflow-y:auto}.date{color:#a1a1a1;text-align:center;margin:12px 0 20px;font-size:11px}.message-row{gap:9px;margin:20px 0;display:flex}.message-row.outgoing{flex-direction:row-reverse}.avatar.small{width:34px;height:34px;font-size:12px}.outgoing .avatar{background:#2e7ce4;font-size:10px}.message-column{min-width:0;max-width:76%}.outgoing .message-column{flex-direction:column;align-items:flex-end;display:flex}.sender{color:#8e939b;margin-bottom:5px;font-size:11px;display:block}.bubble{white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;border-radius:5px;min-width:30px;padding:10px 12px;font-size:15px;line-height:1.65;position:relative}.outgoing .bubble{background:#95ec69}.bubble button{color:var(--brand);padding:6px 0 0;font-size:12px;display:block}.bubble>span{color:#888;font-size:13px}.message-meta{color:#a0a0a0;flex-wrap:wrap;align-items:center;gap:7px;margin-top:6px;font-size:10px;line-height:1.6;display:flex}.message-meta.failed{color:#d85858}.message-meta button{color:var(--brand);padding:0;font-size:11px}.system-note{text-align:center;color:#888;padding:10px;font-size:12px;line-height:1.8}.composer-wrap{padding-bottom:env(safe-area-inset-bottom);background:#f7f7f7;border-top:1px solid #ddd}.composer{align-items:flex-end;gap:10px;padding:10px 12px 5px;display:flex}.composer textarea{resize:none;background:#fff;border:1px solid #dedede;border-radius:5px;flex:1;min-width:0;min-height:85px;max-height:160px;padding:12px;font-size:16px;line-height:1.5}.send{background:var(--brand);color:#fff;border-radius:5px;min-width:64px;margin-bottom:1px;padding:10px 12px;font-size:14px}.composer-hint{color:#aaa;padding:2px 13px 8px;font-size:10px}.composer-warning{color:#b97632;padding:10px 14px 0;font-size:12px;line-height:1.6}.history{color:var(--brand);margin:5px auto 18px;font-size:12px;display:block}.new-messages{color:var(--brand);background:#fff;border:1px solid #ddd;border-radius:20px;padding:8px 14px;font-size:12px;position:absolute;bottom:145px;right:16px}.desktop-empty{color:#9da6b1;background:#f8fafc;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:20px;font-size:14px;display:flex}.welcome{text-align:center;background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:20px;max-width:480px;height:100dvh;margin:auto;padding:24px;display:flex}.welcome p{color:#777;font-size:14px;line-height:1.7}.welcome small{color:#a2a7ad;font-size:12px}.welcome-icon{color:#8ea4be;border:2px solid #c9d6e4;border-radius:15px;justify-content:center;align-items:center;width:58px;height:58px;font-size:24px;display:flex}.error-banner{color:#86562b;z-index:4;background:#fff4e8;border:1px solid #f2d5ae;border-radius:6px;padding:12px;font-size:12px;line-height:1.6;position:absolute;bottom:150px;left:4%;right:4%;box-shadow:0 4px 12px #0001}.error-banner button{color:var(--brand);margin-left:8px}.modal-backdrop{z-index:6;background:#0006;align-items:flex-end;display:flex;position:absolute;inset:0}.sheet{width:100%;max-height:85%;padding:0 20px calc(24px + env(safe-area-inset-bottom));background:#fff;border-radius:14px 14px 0 0;overflow:auto;box-shadow:0 -8px 30px #0001}.sheet header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:20px 0;display:flex}.sheet h3{font-size:17px}.sheet header button{color:#777;font-size:24px}.sheet pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f4f5f7;border-radius:5px;padding:12px;font:11px/1.7 monospace}.sheet p{color:#777;margin:20px 0;font-size:14px;line-height:1.8}.sheet dl>div{gap:16px;padding:12px 0;font-size:13px;line-height:1.6;display:flex}.sheet dt{color:#999;min-width:70px}.sheet dd{text-align:right;overflow-wrap:anywhere;flex:1;margin:0}.confirm{background:var(--brand);color:#fff;border-radius:5px;width:100%;padding:12px 16px;font-size:14px}.loading-back{text-align:left;width:100%;padding:10px;font-size:18px}@media (width<=700px){.workspace{max-width:480px}.list-pane{border:0;width:100%}.desktop-empty{display:none}.chat-pane{z-index:2;position:absolute;inset:0}.show-chat .list-pane{visibility:hidden}.chat-header{padding-left:10px}.messages{padding-left:14px;padding-right:14px}.modal-backdrop{position:fixed}.error-banner{z-index:5}.conversation{padding:18px 16px}}