:root{--bg: #f4f6f8;--panel: #ffffff;--panel-soft: #f8fafb;--line: #e7ebef;--fg: #25313b;--fg-2: #697783;--fg-3: #9aa6af;--accent: #5278c8;--accent-soft: #edf2ff;--agent: #8a6ac2;--agent-soft: #f1edfb;--warn: #a56f3a;--warn-soft: #fff7ec;--shadow: 0 12px 32px rgba(48, 67, 82, .06)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:14px/1.6 system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif}button,input{font:inherit}.booting{padding:40px;color:var(--fg-2)}.app{height:100vh;display:flex;flex-direction:column}.topbar{height:64px;flex:none;display:flex;align-items:center;gap:10px;padding:0 24px;border-bottom:1px solid var(--line);background:var(--panel)}.brand-mark{width:30px;height:30px;display:grid;place-items:center;border-radius:10px;background:#243c73;color:#fff;font-size:18px;font-weight:750}.brand-copy{display:flex;align-items:baseline;gap:10px}.brand-copy strong{font-size:18px;letter-spacing:-.02em}.brand-copy span{color:var(--fg-3);font-size:12px}.self-profile{margin-left:auto;display:flex;align-items:center;gap:8px;color:var(--fg-2);font-size:13px}.self-label{color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:1px 6px;font-size:11px}.replay-button{margin-left:10px;border:1px solid #d7e1f5;border-radius:9px;padding:6px 10px;color:#405f9d;background:#f6f8fd;font-size:12px;font-weight:650;cursor:pointer}.replay-button:hover{background:var(--accent-soft);border-color:#bdcdec}.panes{flex:1;display:grid;grid-template-columns:minmax(0,1fr) 380px;min-height:0}.pane{display:flex;flex-direction:column;min-height:0;background:var(--panel)}.chat-pane{border-right:1px solid var(--line)}.aide-pane{background:var(--panel-soft)}.pane-head{flex:none;min-height:64px;display:flex;align-items:center;gap:10px;padding:0 22px;border-bottom:1px solid var(--line);color:var(--fg)}.pane-title-copy{display:flex;flex-direction:column;line-height:1.35}.pane-title-copy strong{font-size:14px}.pane-title-copy span{color:var(--fg-3);font-size:11px;font-weight:400}.group-icon{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:#fff3d9;color:#bd8532;font-size:17px}.avatar{width:30px;height:30px;flex:none;display:inline-block;border-radius:50%;background-image:url(/avatars/chat-avatar-sheet.png);background-repeat:no-repeat;background-size:300% 200%;box-shadow:inset 0 0 0 1px #ffffff59,0 1px 2px #1d2b381f}.avatar-alice,.avatar-me{background-position:0% 0%}.avatar-bob{background-position:50% 0%}.avatar-carol{background-position:100% 0%}.avatar-dave{background-position:0% 100%}.avatar-scout{background-position:50% 100%}.avatar-aide{background-position:100% 100%}.avatar-small{width:24px;height:24px}.presence{margin-left:auto;display:flex;align-items:center;gap:8px;font-weight:400}.presence-count{color:var(--fg-3);font-size:11px}.presence-avatars{display:flex;padding-left:6px}.presence-avatars .avatar{margin-left:-6px;border:2px solid var(--panel)}.chip{color:var(--fg-3);font-size:11px}.chip+.chip:before{content:"·";margin:0 5px;color:#c8d0d6}.connection-notice{flex:none;padding:7px 22px;background:var(--warn-soft);color:var(--warn);border-bottom:1px solid #f2e3cd;font-size:12px}.message-list{flex:1;overflow-y:auto;padding:18px 22px 12px}.msg{display:grid;grid-template-columns:30px minmax(0,1fr);column-gap:10px;padding:10px 0;border-bottom:1px solid rgba(231,235,239,.72)}.msg-head{grid-column:1 / -1;display:flex;align-items:center;gap:7px;min-height:30px;font-size:12px;color:var(--fg-3)}.msg-author{color:var(--fg-2);font-weight:650}.msg-agent .msg-author{color:var(--agent)}.msg-time{margin-left:2px;color:var(--fg-3);font-size:11px}.msg-body{grid-column:2;white-space:pre-wrap;word-break:break-word;margin-top:-1px;color:var(--fg)}.msg-image{grid-column:2;overflow:hidden;transition:none;margin-top:8px;border-radius:12px;box-shadow:var(--shadow)}.msg-image img{display:block;width:100%;height:100%;object-fit:cover}.badge{font-size:10px;padding:1px 6px;border-radius:8px;border:1px solid var(--line);color:var(--fg-3)}.badge-agent{color:var(--agent);background:var(--agent-soft);border-color:#ded5f3}.badge-owner{color:#476da9;background:var(--accent-soft);border-color:#d8e2fb}.typing{flex:none;height:30px;padding:0 22px;font-size:12px;color:var(--fg-3);display:flex;align-items:center;gap:4px}.typing .dot{width:4px;height:4px;border-radius:50%;background:var(--fg-3)}.composer{flex:none;display:flex;gap:8px;padding:12px 22px 18px;border-top:1px solid var(--line);background:var(--panel)}.composer input{flex:1;background:var(--panel-soft);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:9px 12px;outline:none}.composer input:focus{border-color:#b5c6ed;box-shadow:0 0 0 3px var(--accent-soft)}.composer button{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:9px 16px;font-weight:650;cursor:pointer}.aide-scroll{flex:1;overflow-y:auto;padding:22px}.aide-intro{margin-bottom:14px;padding:14px 15px;border:1px solid #d8e2fb;border-radius:14px;background:linear-gradient(135deg,#f7f9ff,#eef3ff)}.aide-intro .badge{display:inline-block;margin-bottom:6px}.aide-intro strong{display:block;font-size:13px;line-height:1.45;color:#3e5f9a}.aide-intro p{margin:5px 0 0;color:var(--fg-2);font-size:11px;line-height:1.6}.brief-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:17px;box-shadow:var(--shadow)}.brief-head{display:flex;align-items:center;gap:8px;margin-bottom:12px}.brief-title{font-weight:700;font-size:15px}.state{font-size:11px;padding:2px 8px;border-radius:10px;background:var(--panel-soft);border:1px solid var(--line);color:var(--fg-3)}.state-drafting{color:var(--accent);background:var(--accent-soft);border-color:#d8e2fb}.state-final{color:#4f8d69;background:#eef8f1;border-color:#d4ebdb}.state-cancelled{color:var(--warn);background:var(--warn-soft);border-color:#f2e3cd}.brief-pause-button{margin-left:auto;border:1px solid #e3cda9;border-radius:8px;padding:4px 8px;background:#fffaf2;color:#8d6332;cursor:pointer;font-size:12px;line-height:1.25}.brief-pause-button:hover{background:var(--warn-soft);border-color:#d6af77}.brief-pause-button:focus-visible{outline:3px solid #f5e4ca;outline-offset:2px}.brief-waiting,.brief-cancelled-note{font-size:12px;color:var(--warn);background:var(--warn-soft);border-radius:9px;padding:7px 9px;margin-bottom:11px}.brief-resume-button{margin:7px 0 0;display:block;border:0;border-radius:7px;padding:4px 7px;background:#f2dfc5;color:#76501f;cursor:pointer;font-size:12px;font-weight:650}.brief-resume-button:hover{background:#ead0ad}.brief-body{min-height:110px;white-space:pre-wrap;word-break:break-word;color:var(--fg)}.muted{color:var(--fg-3)}.citations{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.cite{font-size:11px;background:var(--panel-soft);border:1px solid var(--line);color:var(--fg-2);border-radius:10px;padding:3px 9px;cursor:pointer;font-family:inherit}.brief-foot{margin-top:12px;font-size:11px;color:var(--fg-3)}.aide-note{font-size:12px;line-height:1.7;color:var(--fg-3);margin:16px 2px}.activity{margin-top:16px;padding:15px;border:1px solid var(--line);border-radius:14px;background:#ffffffb3}.activity-title{display:flex;flex-direction:column;line-height:1.35}.activity-title strong{font-size:13px}.activity-title span{color:var(--fg-3);font-size:11px}.activity-empty{margin:12px 0 0;color:var(--fg-3);font-size:12px}.activity-list{margin:13px 0 0;padding:0;list-style:none}.activity-item{position:relative;display:grid;grid-template-columns:42px minmax(0,1fr);gap:9px;padding:0 0 13px}.activity-item:not(:last-child):before{content:"";position:absolute;left:20px;top:18px;bottom:0;width:1px;background:var(--line)}.activity-item:after{content:"";position:absolute;left:17px;top:5px;width:7px;height:7px;border-radius:50%;background:var(--agent);box-shadow:0 0 0 3px var(--agent-soft)}.activity-scout:after{background:#d49a4e;box-shadow:0 0 0 3px #fff3dc}.activity-alice:after{background:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.activity-time{color:var(--fg-3);font-size:10px;line-height:18px}.activity-item strong{display:block;font-size:12px;color:var(--fg-2)}.activity-item p{margin:1px 0 0;color:var(--fg-3);font-size:11px;line-height:1.55}.caret{display:inline-block;width:6px;height:15px;margin-left:2px;background:var(--accent);vertical-align:-2px;border-radius:1px}.source-preview{margin-top:14px;padding:12px;background:var(--panel-soft);border:1px solid var(--line);border-radius:10px}.source-preview header{display:flex;align-items:center;gap:6px;font-size:12px}.source-preview header button{margin-left:auto;border:0;background:transparent;cursor:pointer}.source-preview p{font-size:12px;white-space:pre-wrap}.source-preview img{display:block;max-width:100%;border-radius:8px;margin-bottom:8px}.revision-note{margin-top:8px;color:var(--fg-2);font-size:11px}.latest-button{align-self:center;flex:none;border:1px solid var(--line);border-radius:16px;background:var(--accent-soft);color:var(--accent);padding:4px 12px;cursor:pointer}@media (max-width: 800px){.panes{grid-template-columns:1fr}.aide-pane,.brand-copy span,.chip{display:none}}