:root{--bg: #f2f2f2;--surface: #ffffff;--sidebar-bg: #e6e6e6;--topbar-bg: var(--sidebar-bg);--topbar-border: rgba(0,0,0,.08);--line: rgba(0,0,0,.09);--text: #1a1a1a;--text-soft: #555;--muted: #888;--user-bubble: #e0e0e0;--user-bubble-text: #1a1a1a;--brand-icon-bg: #1a1a1a;--brand-icon-text: #ffffff;--scrollbar: rgba(0,0,0,.18);--surface-soft: #efefef;--archive-active-bg: #d8d8d8;--archive-active-border:rgba(0,0,0,.12);--attach-bg: var(--surface);--attach-border: var(--line);--attach-hover: #f5f5f5;--plan-bg: #f6f6f6;--tool-pill-bg: #efefef;--tool-pill-border: rgba(0,0,0,.1);--preview-bg: #ebebeb;--btn-hover: rgba(0,0,0,.06);--btn-active: rgba(0,0,0,.12);--delete-hover: #fee2e2;--delete-color: #dc2626}[data-theme=dark]{--bg: #1f1f1f;--surface: #292929;--sidebar-bg: #1a1a1a;--topbar-bg: var(--sidebar-bg);--topbar-border: rgba(255,255,255,.07);--line: rgba(255,255,255,.08);--text: #e8e8e8;--text-soft: #aaa;--muted: #666;--user-bubble: #3a3a3a;--user-bubble-text: #e8e8e8;--brand-icon-bg: #e8e8e8;--brand-icon-text: #1a1a1a;--scrollbar: rgba(255,255,255,.15);--surface-soft: #323232;--archive-active-bg: #383838;--archive-active-border:rgba(255,255,255,.1);--attach-bg: #323232;--attach-border: rgba(255,255,255,.08);--attach-hover: #3a3a3a;--plan-bg: #232323;--tool-pill-bg: #323232;--tool-pill-border: rgba(255,255,255,.08);--preview-bg: #222;--btn-hover: rgba(255,255,255,.06);--btn-active: rgba(255,255,255,.12);--delete-hover: rgba(220,38,38,.15);--delete-color: #f87171}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;background:var(--bg);color:var(--text);line-height:1.6;overflow:hidden}::-webkit-scrollbar{width:5px;height:5px}::-webkit-scrollbar-thumb{background:var(--scrollbar);border-radius:3px}::-webkit-scrollbar-track{background:transparent}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;height:44px;background:var(--topbar-bg);border-bottom:1px solid var(--topbar-border);padding:0 8px;gap:4px;flex-shrink:0;z-index:100}.topbar-title{flex:1;text-align:center;font-size:13.5px;font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding:0 8px}.topbar-sep{width:1px;height:18px;background:var(--topbar-border);margin:0 2px}.body-row{display:flex;flex:1;overflow:hidden}.sidebar{width:240px;background:var(--sidebar-bg);border-right:1px solid var(--topbar-border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;transition:width .22s ease,opacity .22s ease}.sidebar.closed{width:0;opacity:0;pointer-events:none}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:14px 14px 10px;border-bottom:1px solid var(--topbar-border);flex-shrink:0}.brand-icon{width:32px;height:32px;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0}.brand-name{font-weight:600;font-size:14px;line-height:1.2}.brand-sub{font-size:11px;color:var(--muted)}.sidebar-import{padding:12px;border-bottom:1px solid var(--topbar-border);flex-shrink:0}.sidebar-import label{display:block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:6px}.sidebar-import textarea{width:100%;height:64px;background:var(--surface);border:1px solid var(--line);border-radius:6px;color:var(--text);font-size:12px;padding:6px 8px;resize:none;outline:none;font-family:inherit}.sidebar-import textarea::placeholder{color:var(--muted)}.sidebar-import textarea:focus{border-color:#80808066}.btn-import{width:100%;margin-top:7px;padding:7px;background:var(--text);color:var(--bg);border:none;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;transition:opacity .15s}.btn-import:hover{opacity:.85}.btn-import:disabled{opacity:.45;cursor:not-allowed}.import-progress{margin-top:8px;padding:8px 10px;background:var(--surface-soft);border-radius:7px;border:1px solid var(--line)}.import-progress-row{display:flex;align-items:center;gap:8px}.import-progress-msg{font-size:11.5px;color:var(--text-soft);line-height:1.4;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.import-progress-spinner{flex-shrink:0;width:12px;height:12px;border:2px solid var(--line);border-top-color:var(--text-soft);border-radius:50%;animation:rv-spin .7s linear infinite}@keyframes rv-spin{to{transform:rotate(360deg)}}.import-progress-bar-wrap{margin-top:6px;height:3px;background:var(--line);border-radius:2px;overflow:hidden}.import-progress-bar{height:100%;background:var(--text-soft);border-radius:2px;transition:width .3s ease;min-width:4px}.sidebar-archives{flex:1;overflow-y:auto;padding:8px}.archives-header{display:flex;align-items:center;justify-content:space-between;padding:4px 4px 6px}.archives-header span{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.btn-icon{width:26px;height:26px;border:none;background:transparent;color:var(--text-soft);cursor:pointer;border-radius:5px;display:flex;align-items:center;justify-content:center;transition:background .12s,color .12s}.btn-icon:hover{background:var(--btn-hover);color:var(--text)}.btn-icon.active{background:var(--btn-active);color:var(--text)}.archive-item{display:flex;align-items:flex-start;justify-content:space-between;gap:4px;padding:8px;border-radius:7px;cursor:pointer;transition:background .12s;border:1px solid transparent}.archive-item:hover{background:var(--surface-soft)}.archive-item.active{background:var(--archive-active-bg);border-color:var(--archive-active-border)}.archive-item-info{flex:1;min-width:0}.archive-item-title{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}.archive-item-meta{font-size:11px;color:var(--muted);margin-top:2px}.btn-delete-archive{width:22px;height:22px;border:none;background:transparent;color:var(--muted);cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0;opacity:0;transition:opacity .12s,background .12s,color .12s}.archive-item:hover .btn-delete-archive{opacity:1}.btn-delete-archive:hover{background:var(--delete-hover);color:var(--delete-color)}.workspace{flex:1;overflow-y:auto;background:var(--bg);padding:0 0 80px}.timeline-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--muted);gap:8px}.timeline-empty svg{opacity:.3}.timeline-empty p{font-size:14px}.date-divider{display:flex;align-items:center;gap:10px;padding:24px 32px 8px;color:var(--muted);font-size:12px}.date-divider:before,.date-divider:after{content:"";flex:1;height:1px;background:var(--line)}.msg-row{padding:4px 32px;display:flex;flex-direction:column}.msg-row.user{align-items:flex-end}.msg-row.agent{align-items:flex-start}.msg-meta{font-size:11px;color:var(--muted);margin-bottom:4px;display:flex;gap:6px;align-items:baseline}.msg-sender{font-weight:600;color:var(--text-soft)}.msg-bubble{max-width:72%;background:var(--surface);border-radius:12px;padding:10px 14px;color:var(--text);font-size:14px;line-height:1.65;border:1px solid var(--line)}.msg-row.user .msg-bubble{background:var(--user-bubble);color:var(--user-bubble-text);border-color:transparent;border-radius:12px 12px 4px}.msg-row.agent .msg-bubble{border-radius:12px 12px 12px 4px}.msg-bubble p{margin:0 0 .5em}.msg-bubble p:last-child{margin-bottom:0}.msg-bubble ul,.msg-bubble ol{padding-left:1.4em;margin:.4em 0}.msg-bubble code{background:#8080801f;padding:1px 5px;border-radius:3px;font-size:12px;font-family:SF Mono,Fira Mono,monospace}.msg-bubble pre{background:#8080801a;border-radius:6px;padding:8px 10px;overflow-x:auto;margin:6px 0}.msg-bubble pre code{background:none;padding:0}.msg-bubble a{color:inherit}.msg-bubble strong{font-weight:600}.attach-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;margin-top:8px}.attach-card{display:flex;align-items:center;gap:10px;background:var(--attach-bg);border:1px solid var(--attach-border);border-radius:8px;padding:8px 10px;cursor:pointer;transition:background .12s;text-decoration:none;color:inherit}.attach-card:hover{background:var(--attach-hover)}.user-bubble .attach-card{background:#00000014;border-color:#0000001a}[data-theme=dark] .user-bubble .attach-card{background:#ffffff12;border-color:#ffffff1f}.attach-card-info{flex:1;min-width:0}.attach-card-name{font-size:12px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}.user-bubble .attach-card-name{color:var(--user-bubble-text)}.attach-card-meta{font-size:11px;color:var(--muted);margin-top:1px}.user-bubble .attach-card-meta{color:#808080cc}[data-theme=dark] .user-bubble .attach-card-meta{color:#c8c8c880}.file-type-badge{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:#fff;flex-shrink:0;letter-spacing:.02em}.plan-block{margin:6px 32px;background:var(--plan-bg);border:1px solid var(--line);border-radius:10px;overflow:hidden}.plan-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;font-size:13px;font-weight:600;color:var(--text)}.plan-progress{font-size:11px;font-weight:500;color:var(--muted);background:var(--surface-soft);padding:2px 7px;border-radius:10px}.plan-task{display:flex;align-items:center;gap:8px;padding:5px 12px;font-size:12.5px;color:var(--text-soft);border-top:1px solid var(--line)}.plan-task-status{font-size:11px;font-weight:600;padding:1px 6px;border-radius:4px;flex-shrink:0}.plan-task-status.done{background:#43a04726;color:#43a047}.plan-task-status.doing{background:#1e88e526;color:#1e88e5}.plan-task-status.todo{background:var(--tool-pill-bg);color:var(--muted)}.plan-task-status.error{background:#e5393526;color:#e53935}.tool-step{display:flex;align-items:center;gap:8px;padding:4px 32px}.tool-pill{display:inline-flex;align-items:center;gap:6px;background:var(--tool-pill-bg);border:1px solid var(--tool-pill-border);border-radius:20px;padding:3px 10px;font-size:12px;color:var(--text-soft)}.tool-pill-name{font-weight:600;color:var(--text)}.tool-pill-status{font-size:11px;padding:1px 6px;border-radius:10px}.tool-pill-status.success{background:#43a04726;color:#43a047}.tool-pill-status.error{background:#e5393526;color:#e53935}.tool-pill-status.running{background:#1e88e526;color:#1e88e5}.tool-pill-time{color:var(--muted);font-size:11px}.note-block{margin:4px 32px;padding:8px 14px;background:var(--surface);border:1px solid var(--line);border-radius:8px;font-size:13.5px;color:var(--text);line-height:1.6}.note-block p{margin:0 0 .4em}.note-block p:last-child{margin-bottom:0}.note-meta{font-size:11px;color:var(--muted);margin-bottom:4px}.inspector{width:280px;background:var(--sidebar-bg);border-left:1px solid var(--topbar-border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;transition:width .22s ease,opacity .22s ease}.inspector.closed{width:0;opacity:0;pointer-events:none}.inspector-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px 8px;border-bottom:1px solid var(--topbar-border);flex-shrink:0}.inspector-header h3{font-size:13px;font-weight:600}.inspector-body{flex:1;overflow-y:auto;padding:12px}.export-row{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:12px}.btn-export{padding:6px;background:var(--surface);border:1px solid var(--line);border-radius:6px;font-size:12px;font-weight:500;color:var(--text);cursor:pointer;text-align:center;transition:background .12s;text-decoration:none;display:block}.btn-export:hover{background:var(--surface-soft)}.info-section{margin-bottom:14px}.info-section h4{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:6px}.info-row{display:flex;justify-content:space-between;font-size:12px;padding:3px 0;border-bottom:1px solid var(--line);gap:8px}.info-row:last-child{border-bottom:none}.info-label{color:var(--text-soft);flex-shrink:0}.info-value{color:var(--text);text-align:right;word-break:break-all}.info-link{color:var(--text);font-size:11px;word-break:break-all}.file-list-item{display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--line)}.file-list-item:last-child{border-bottom:none}.file-list-info{flex:1;min-width:0}.file-list-name{font-size:12px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}.file-list-meta{font-size:11px;color:var(--muted)}.file-list-actions{display:flex;gap:4px;flex-shrink:0}.btn-file-action{font-size:11px;padding:2px 7px;border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--text-soft);cursor:pointer;transition:background .12s;text-decoration:none;display:inline-block}.btn-file-action:hover{background:var(--surface-soft);color:var(--text)}.section-header-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.section-header-row h4{margin-bottom:0}.btn-download-all{display:flex;align-items:center;gap:4px;padding:4px 10px;border-radius:6px;border:1px solid var(--line);background:transparent;color:var(--text-soft);font-size:12px;cursor:pointer;transition:background .15s,color .15s;white-space:nowrap}.btn-download-all:hover{background:var(--surface-soft);color:var(--text)}.import-dialog-box{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px;width:380px;max-width:calc(100vw - 32px);box-shadow:0 8px 32px #0000002e}.import-dialog-title{font-size:15px;font-weight:600;color:var(--text);margin:0 0 16px}.import-option{display:flex;gap:12px;padding:12px;border-radius:8px;border:1px solid var(--line);margin-bottom:10px;cursor:pointer;transition:border-color .15s,background .15s;-webkit-user-select:none;user-select:none}.import-option.selected{border-color:var(--accent, #4a9eff);background:var(--surface-soft)}.import-option-radio{flex-shrink:0;width:18px;height:18px;border-radius:50%;border:2px solid var(--line);display:flex;align-items:center;justify-content:center;margin-top:2px;transition:border-color .15s}.import-option.selected .import-option-radio{border-color:var(--accent, #4a9eff)}.radio-dot{width:8px;height:8px;border-radius:50%;background:transparent;transition:background .15s}.radio-dot.active{background:var(--accent, #4a9eff)}.import-option-body{flex:1}.import-option-name{font-size:13px;font-weight:500;color:var(--text);margin-bottom:4px;display:flex;align-items:center;gap:6px}.import-option-tag{font-size:10px;font-weight:500;padding:1px 6px;border-radius:4px;background:var(--surface-soft);color:var(--text-soft)}.import-option-tag.offline{background:#1a3a1a;color:#5cb85c}[data-theme=light] .import-option-tag.offline{background:#e8f5e9;color:#2e7d32}.import-option-desc{font-size:12px;color:var(--text-soft);line-height:1.5}.import-dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000008c;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px}.modal-box{background:var(--surface);border-radius:12px;width:100%;max-width:1100px;height:calc(100vh - 32px);max-height:calc(100vh - 32px);display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px #00000059}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);flex-shrink:0}.modal-title{font-size:14px;font-weight:600}.modal-body{flex:1;overflow:auto;padding:16px;min-height:0;display:flex;flex-direction:column}.modal-preview-img{max-width:100%;border-radius:6px;display:block;margin:0 auto}.modal-preview-pdf{width:100%;flex:1;min-height:0;border:none;border-radius:6px;display:block}.modal-preview-text{font-family:SF Mono,Fira Mono,monospace;font-size:12.5px;white-space:pre-wrap;word-break:break-word;color:var(--text);line-height:1.6}.modal-preview-md{font-size:14px;color:var(--text);line-height:1.7}.modal-preview-md p{margin:0 0 .7em}.modal-preview-md h1,.modal-preview-md h2,.modal-preview-md h3{margin:1em 0 .4em;font-weight:600}.modal-preview-md ul,.modal-preview-md ol{padding-left:1.4em;margin:.4em 0}.modal-preview-md code{background:var(--surface-soft);padding:1px 5px;border-radius:3px;font-size:12px}.modal-preview-md pre{background:var(--surface-soft);border-radius:6px;padding:10px;overflow-x:auto;margin:8px 0}.modal-preview-md pre code{background:none}.modal-no-preview{display:flex;flex-direction:column;align-items:center;justify-content:center;height:200px;color:var(--muted);gap:8px}.confirm-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:2000}.confirm-box{background:var(--surface);border-radius:10px;padding:20px 24px;width:320px;box-shadow:0 8px 32px #00000040}.confirm-box h3{font-size:15px;font-weight:600;margin-bottom:8px}.confirm-box p{font-size:13px;color:var(--text-soft);margin-bottom:18px}.confirm-actions{display:flex;justify-content:flex-end;gap:8px}.btn-confirm-cancel{padding:6px 14px;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--text);font-size:13px;cursor:pointer;transition:background .12s}.btn-confirm-cancel:hover{background:var(--btn-hover)}.btn-confirm-ok{padding:6px 14px;border:none;border-radius:6px;background:#dc2626;color:#fff;font-size:13px;font-weight:500;cursor:pointer;transition:opacity .12s}.btn-confirm-ok:hover{opacity:.85}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--text);color:var(--bg);padding:8px 18px;border-radius:20px;font-size:13px;z-index:3000;pointer-events:none;animation:fadeInUp .2s ease}@keyframes fadeInUp{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.error-msg{background:#e539351a;border:1px solid rgba(229,57,53,.25);color:#e53935;border-radius:6px;padding:8px 10px;font-size:12.5px;margin-top:6px}