:root{--primary: #6c5ce7;--bg: #f5f6fa;--card: #ffffff;--text: #2d3436;--muted: #636e72;--border: #dfe6e9;--danger: #d63031;--sidebar: #1e1b2e;--sidebar-text: #dfe6e9}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--text);background:var(--bg)}.login-page{min-height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,color-mix(in srgb,var(--primary) 18%,white),var(--bg));padding:24px}.login-card{width:100%;max-width:400px;background:var(--card);border-radius:16px;padding:36px 32px;box-shadow:0 12px 40px #00000014}.login-logo{width:56px;height:56px;margin:0 auto 12px;border-radius:14px;background:var(--primary);display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px}.login-card h1{margin:0;text-align:center;font-size:22px}.login-card .sub{text-align:center;color:var(--muted);margin:8px 0 24px;font-size:14px}.field{margin-bottom:16px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.field input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;outline:none}.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 20%,transparent)}.btn-primary{width:100%;border:none;border-radius:8px;padding:12px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-primary:hover:not(:disabled){filter:brightness(1.05)}.error-bar{background:#ffeaea;color:var(--danger);padding:10px 12px;border-radius:8px;margin-bottom:16px;font-size:13px}.login-footer{text-align:center;margin-top:20px;font-size:13px}.login-footer a{color:var(--primary);text-decoration:none}.restore{text-align:center;color:var(--muted);padding:40px}.shell{display:flex;height:100%}.sidebar{width:72px;background:var(--sidebar);color:var(--sidebar-text);display:flex;flex-direction:column;align-items:center;padding:12px 0;gap:4px}.sidebar .brand{width:40px;height:40px;border-radius:10px;background:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:12px;font-weight:700}.nav-btn{width:56px;padding:10px 4px;border:none;background:transparent;color:var(--sidebar-text);border-radius:10px;cursor:pointer;font-size:11px;display:flex;flex-direction:column;align-items:center;gap:4px}.nav-btn.active,.nav-btn:hover{background:color-mix(in srgb,var(--primary) 40%,transparent)}.nav-btn .icon{font-size:18px}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:56px;background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.topbar h2{margin:0;font-size:16px}.topbar .meta{color:var(--muted);font-size:13px;display:flex;gap:12px;align-items:center}.link-btn{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px}.content{flex:1;padding:24px;overflow:auto}.placeholder{background:var(--card);border:1px dashed var(--border);border-radius:12px;padding:48px;text-align:center;color:var(--muted)}.placeholder h3{margin:0 0 8px;color:var(--text)}.content-flush{padding:0;overflow:hidden;display:flex;flex-direction:column}.ws-status.on{color:#00b894}.ws-status.off{color:#fdcb6e}.dashboard{display:flex;flex-direction:column;gap:20px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;text-align:left;cursor:default}.stat-card.clickable{cursor:pointer}.stat-card.clickable:hover{border-color:var(--primary)}.stat-label{font-size:13px;color:var(--muted);margin-bottom:8px}.stat-value{font-size:28px;font-weight:700;color:var(--text)}.trend-card,.pending-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.trend-card h3,.pending-card h3{margin:0 0 16px;font-size:15px}.trend-chart{display:flex;align-items:flex-end;gap:10px;height:160px}.trend-col{flex:1;display:flex;flex-direction:column;align-items:center;height:100%}.trend-bars{flex:1;width:100%;display:flex;align-items:flex-end;justify-content:center;gap:3px}.bar{width:10px;min-height:2px;border-radius:4px 4px 0 0}.bar.messages{background:var(--primary)}.bar.sessions{background:color-mix(in srgb,var(--primary) 40%,#00b894)}.trend-label{font-size:11px;color:var(--muted);margin-top:6px}.trend-nums{font-size:10px;color:var(--muted)}.trend-legend{display:flex;gap:16px;margin-top:12px;font-size:12px;color:var(--muted)}.trend-legend .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:4px}.dot.msg{background:var(--primary)}.dot.sess{background:#00b894}.pending-card ul{list-style:none;margin:0;padding:0}.pending-card li{display:flex;gap:12px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}.pending-card .muted{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-layout{flex:1;display:grid;grid-template-columns:280px 1fr 260px;min-height:0;height:100%;background:var(--card)}.chat-left,.chat-right{border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0}.chat-right{border-right:none;border-left:1px solid var(--border);padding:16px}.chat-left-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 8px}.chat-left-head h3{margin:0;font-size:15px}.ws-dot{width:8px;height:8px;border-radius:50%}.ws-dot.on{background:#00b894}.ws-dot.off{background:#fdcb6e}.chat-tabs{display:flex;gap:4px;padding:0 12px 8px}.chat-tabs button{flex:1;border:none;background:var(--bg);padding:6px;border-radius:6px;cursor:pointer;font-size:12px;color:var(--muted)}.chat-tabs button.active{background:color-mix(in srgb,var(--primary) 15%,white);color:var(--primary);font-weight:600}.chat-search{margin:0 12px 8px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:13px;outline:none}.session-list{flex:1;overflow:auto}.session-item{width:100%;display:flex;gap:10px;padding:10px 12px;border:none;background:transparent;text-align:left;cursor:pointer;border-bottom:1px solid var(--border)}.session-item:hover,.session-item.active{background:color-mix(in srgb,var(--primary) 8%,white)}.session-item.dim{opacity:.55}.avatar{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0}.avatar.sm{width:32px;height:32px;font-size:13px}.sess-body{flex:1;min-width:0}.sess-top,.sess-bottom{display:flex;justify-content:space-between;align-items:center;gap:6px}.sess-top .name{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sess-top .time{font-size:11px;color:var(--muted);flex-shrink:0}.preview{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge{background:#e74c3c;color:#fff;font-size:11px;border-radius:10px;min-width:18px;height:18px;padding:0 5px;display:flex;align-items:center;justify-content:center}.empty-hint{padding:24px 16px;text-align:center;color:var(--muted);font-size:13px}.chat-center{display:flex;flex-direction:column;min-width:0;min-height:0}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--muted)}.chat-empty .illus{font-size:48px;margin-bottom:8px}.chat-empty .muted{font-size:13px}.chat-top{height:52px;border-bottom:1px solid var(--border);padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:8px}.chip{display:inline-block;margin-left:8px;font-size:11px;padding:2px 8px;border-radius:10px;background:var(--bg);color:var(--muted)}.icon-btn{border:none;background:transparent;cursor:pointer;font-size:16px}.typing-bar{padding:4px 16px;font-size:12px;color:var(--muted);background:#fafafa}.msg-list{flex:1;overflow:auto;padding:16px;background:#f7f8fc}.msg-system{text-align:center;color:var(--muted);font-size:12px;margin:10px 0}.msg-row{display:flex;gap:8px;margin-bottom:12px;align-items:flex-end}.msg-row.mine{flex-direction:row-reverse}.bubble{max-width:70%;padding:10px 12px;border-radius:12px;font-size:14px;line-height:1.45;background:#fff;border:1px solid var(--border);position:relative;word-break:break-word}.msg-row.mine .bubble{background:color-mix(in srgb,var(--primary) 18%,white);border-color:transparent}.bubble.pending{opacity:.7}.bubble.failed{border-color:var(--danger)}.fail-mark{position:absolute;right:-18px;top:50%;transform:translateY(-50%);color:var(--danger);font-weight:700}.composer{border-top:1px solid var(--border);padding:10px 12px;display:flex;gap:8px;align-items:flex-end}.composer textarea{flex:1;resize:none;border:1px solid var(--border);border-radius:8px;padding:8px 10px;font-size:14px;font-family:inherit;outline:none}.composer textarea:focus{border-color:var(--primary)}.send-btn{border:none;background:var(--primary);color:#fff;border-radius:8px;padding:10px 18px;cursor:pointer;font-weight:600}.send-btn:disabled{opacity:.5;cursor:not-allowed}.profile-panel h3{margin:0 0 16px;font-size:15px}.profile-flags{display:flex;gap:12px;margin-top:16px}.center{text-align:center;padding:12px}@media(max-width:900px){.chat-layout{grid-template-columns:1fr}.chat-right{display:none}.chat-left{max-height:40vh;border-bottom:1px solid var(--border)}}.page-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.page-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}.seg{display:inline-flex;background:var(--bg);border-radius:8px;padding:3px;gap:2px}.seg button{border:none;background:transparent;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:13px;color:var(--muted)}.seg button.active{background:#fff;color:var(--primary);font-weight:600;box-shadow:0 1px 3px #0000000f}.toast-bar{background:color-mix(in srgb,var(--primary) 12%,white);color:var(--primary);padding:8px 12px;border-radius:8px;margin-bottom:12px;font-size:13px}.btn-sm{border:1px solid var(--border);background:#fff;border-radius:6px;padding:6px 10px;cursor:pointer;font-size:13px;white-space:nowrap}.btn-sm:hover{border-color:var(--primary);color:var(--primary)}.row-input{display:flex;gap:8px}.row-input input{flex:1}.qr-panel{max-width:560px}.qr-box{width:280px;height:280px;margin:16px 0;border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;background:#fafafa}.qr-box img{width:260px;height:260px}.remain{font-size:13px;color:var(--muted);margin-bottom:12px}.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit}.auto-list{list-style:none;margin:0;padding:0}.auto-list li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--border);align-items:flex-start}.auto-actions{display:flex;gap:10px;align-items:center;flex-shrink:0}.switch{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:4px}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:12px;padding:24px;width:100%;max-width:420px;box-shadow:0 16px 48px #00000026}.modal h3{margin:0 0 16px}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:8px}.chip-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}.chip-btn{border:1px solid var(--border);background:#fff;border-radius:16px;padding:6px 12px;cursor:pointer;font-size:12px;color:var(--muted)}.chip-btn.active{border-color:var(--primary);color:var(--primary);background:color-mix(in srgb,var(--primary) 10%,white)}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th,.data-table td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border);vertical-align:middle}.data-table th{color:var(--muted);font-weight:600}.visitor-cell{display:flex;align-items:center;gap:8px}.dim-row{opacity:.6}.tag-pill{display:inline-block;font-size:11px;padding:2px 8px;border-radius:10px;background:color-mix(in srgb,var(--primary) 12%,white);color:var(--primary);margin-right:4px}.tag-pill.alt{background:var(--bg);color:var(--muted)}.tag-bars{display:flex;gap:3px;margin:2px 0 4px}.tag-bar{width:18px;height:3px;border-radius:2px}.tag-pick{display:flex;flex-wrap:wrap;gap:6px}.tag-chip{border:1px solid var(--border);background:#fff;border-radius:14px;padding:4px 10px;font-size:12px;cursor:pointer}.quick-list{display:flex;flex-direction:column;gap:6px;max-height:220px;overflow:auto}.quick-item{text-align:left;border:1px solid var(--border);background:#fff;border-radius:8px;padding:8px 10px;cursor:pointer;display:flex;flex-direction:column;gap:2px}.quick-item:hover{border-color:var(--primary)}.quick-item strong{font-size:12px}.quick-item span{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.muted{color:var(--muted)}