*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-Thin.ttf) format("truetype");font-weight:100;font-style:normal;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-ThinItalic.ttf) format("truetype");font-weight:100;font-style:italic;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-ExtraLight.ttf) format("truetype");font-weight:200;font-style:normal;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-ExtraLightItalic.ttf) format("truetype");font-weight:200;font-style:italic;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-Light.ttf) format("truetype");font-weight:300;font-style:normal;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-LightItalic.ttf) 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format("truetype");font-weight:600;font-style:italic;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-Bold.ttf) format("truetype");font-weight:700;font-style:normal;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-BoldItalic.ttf) format("truetype");font-weight:700;font-style:italic;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-ExtraBold.ttf) format("truetype");font-weight:800;font-style:normal;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-ExtraBoldItalic.ttf) format("truetype");font-weight:800;font-style:italic;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-Black.ttf) format("truetype");font-weight:900;font-style:normal;font-display:swap}@font-face{font-family:PTCRaleway;src:url(/fonts/PTCRaleway-BlackItalic.ttf) format("truetype");font-weight:900;font-style:italic;font-display:swap}:root{--sidebar-width: 280px;--sidebar-bg: #3D4647;--sidebar-border: rgba(255,255,255,.12);--accent: #4f8ef7;--accent-dark: #2563eb;--bg-main: #ffffff;--bg-chat: #f7f8fc;--text-primary: #1a1a2e;--text-secondary: #6b7280;--user-bubble-bg: #e6f7e1;--user-bubble-border: #94d483;--ai-bubble-bg: #ffffff;--ai-bubble-border: #e5e7eb;--status-bg: #fffbeb;--status-border: #fde68a;--error-bg: #fef2f2;--error-border: #fca5a5;--success-color: #10b981;--error-color: #ef4444;--radius: 12px;--radius-sm: 6px;font-family:PTCRaleway,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}body{background:var(--bg-main);color:var(--text-primary);height:100vh;overflow:hidden}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);max-width:var(--sidebar-width);background:var(--sidebar-bg);color:#fff;display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;border-right:1px solid var(--sidebar-border);transition:width .22s ease,min-width .22s ease,max-width .22s ease}.sidebar--collapsed{width:52px;min-width:52px;max-width:52px}.sidebar-topbar{display:flex;align-items:center;gap:8px;padding:14px 10px 10px;flex-shrink:0;border-bottom:1px solid var(--sidebar-border)}.sidebar-icon-btn{background:transparent;border:1px solid rgba(255,255,255,.2);color:#ffffffbf;width:32px;height:32px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s,color .15s,border-color .15s}.sidebar-icon-btn:hover{background:#ffffff1f;color:#fff;border-color:#ffffff59}.sidebar-new-btn{display:flex;align-items:center;gap:9px;margin:8px 8px 2px;background:transparent;border:none;color:#ffffffd9;padding:8px 10px;border-radius:8px;cursor:pointer;font-size:.82rem;font-family:inherit;font-weight:500;text-align:left;white-space:nowrap;width:calc(100% - 16px);transition:background .15s,color 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.session-menu-btn,.session-item.active .session-menu-btn{opacity:1}.session-menu-btn:hover{background:#ffffff26;color:#fff}.session-dropdown{position:absolute;right:0;top:calc(100% + 4px);background:#2a2f30;border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:4px;min-width:130px;z-index:100;box-shadow:0 4px 16px #0006}.session-dropdown-item{display:flex;align-items:center;gap:8px;width:100%;background:transparent;border:none;padding:7px 10px;border-radius:6px;cursor:pointer;font-size:.8rem;font-family:inherit;color:#ffffffd9;text-align:left;transition:background .12s}.session-dropdown-item:hover{background:#ffffff14}.session-dropdown-item--danger{color:#f87171}.session-dropdown-item--danger:hover{background:#f871711f}.session-icon{display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#ffffff8c;transition:color .12s}.session-item:hover .session-icon,.session-item.active .session-icon{color:#ffffffe6}.session-info{display:flex;flex-direction:column;min-width:0;flex:1}.session-title{font-size:.78rem;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-item.active .session-title{color:#fff;font-weight:700}.session-time{font-size:.65rem;color:#fff9;margin-top:1px}.sidebar-footer{margin-top:auto;font-size:.68rem;color:#fff6;text-align:center;padding:10px 14px;flex-shrink:0;border-top:1px solid rgba(255,255,255,.12)}.sidebar-collapsed-logo{margin-top:auto;padding:10px 8px;flex-shrink:0;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:center}.sidebar-collapsed-logo svg{width:28px;height:28px}.main-pane{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-main)}.header{height:68px;padding:0 4px;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;justify-content:space-between;background:#fff;box-shadow:0 1px 3px #0000000f;flex-shrink:0;overflow:hidden}.header-title{font-size:1.35rem;font-weight:700;color:var(--text-primary)}.header-brand{display:flex;align-items:center;gap:6px}.header-RA-logo{height:28px;width:auto;flex-shrink:0;margin-left:12px}.header-logo{height:56px;width:auto;object-fit:contain}.header-brand-divider{width:1px;height:32px;background:#d1d5db;flex-shrink:0}.header-brand-divider--tall{height:42px}.header-brand-text{font-size:1.05rem;font-weight:700;font-family:PTCRaleway,sans-serif;color:#6b7280;letter-spacing:.08em;white-space:nowrap;margin-left:4px}.restart-btn{background:transparent;border:1px solid #d1d5db;color:var(--text-secondary);padding:6px 14px;border-radius:var(--radius-sm);cursor:pointer;font-size:.82rem;transition:all .15s}.restart-btn:hover{background:#f3f4f6;color:var(--text-primary)}.banner{padding:10px 24px;font-size:.85rem;flex-shrink:0}.banner-error{background:var(--error-bg);color:var(--error-color);border-bottom:1px solid var(--error-border)}.chat-area{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-chat)}.message-list{flex:1;overflow-y:auto;padding:20px 24px;display:flex;flex-direction:column;gap:16px}.message{display:flex;gap:12px;max-width:820px;width:100%}.message.user{align-self:flex-end;flex-direction:row-reverse}.message.assistant{align-self:flex-start}.message-body{display:flex;flex-direction:column;min-width:0;max-width:100%}.bubble-wrap{display:flex;align-items:flex-start;gap:6px}.message.user .bubble-wrap{flex-direction:row-reverse}.msg-edit-btn{background:transparent;border:1px solid #d1d5db;color:#9ca3af;width:26px;height:26px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;opacity:0;transition:opacity .15s,background .15s,color .15s;margin-top:8px}.message.user:hover 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transparent}.edit-btn--cancel{background:transparent;border-color:#d1d5db;color:var(--text-secondary)}.edit-btn--cancel:hover{background:#f3f4f6;color:var(--text-primary)}.edit-btn--update{background:var(--accent);color:#fff}.edit-btn--update:hover:not(:disabled){background:var(--accent-dark)}.edit-btn--update:disabled{opacity:.45;cursor:not-allowed}.avatar{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;margin-top:2px}.avatar.user{background:var(--accent);color:#fff}.avatar.assistant{background:#f3f4f6;border:1px solid #e5e7eb}.bubble{padding:12px 16px;border-radius:var(--radius);font-size:.9rem;line-height:1.65;max-width:100%}.bubble.user{background:var(--user-bubble-bg);border:1px solid var(--user-bubble-border);border-top-right-radius:4px;color:#1a3a12}.bubble.assistant{background:var(--ai-bubble-bg);border:1px solid var(--ai-bubble-border);border-top-left-radius:4px;box-shadow:0 1px 3px #0000000f}.bubble h1{font-size:1.1rem;margin:8px 0 4px}.bubble h2{font-size:1rem;margin:8px 0 4px}.bubble h3{font-size:.9rem;margin:6px 0 3px}.bubble p{margin:6px 0}.bubble ul,.bubble ol{padding-left:18px;margin:4px 0}.bubble li{margin:3px 0}.bubble code{background:#f1f5f9;padding:1px 5px;border-radius:4px;font-size:.82rem;font-family:Courier New,monospace}.bubble pre{background:#1e293b;color:#e2e8f0;padding:12px;border-radius:8px;overflow-x:auto;font-size:.8rem;margin:8px 0}.bubble pre code{background:none;padding:0;color:inherit}.bubble table{border-collapse:collapse;width:100%;margin:8px 0;font-size:.82rem}.bubble th{background:#f8fafc;padding:6px 10px;border:1px solid #e2e8f0;text-align:left;font-weight:600}.bubble td{padding:5px 10px;border:1px solid #e2e8f0}.bubble tr:nth-child(2n) td{background:#f8fafc}.bubble strong{font-weight:600}.bubble a{color:var(--accent)}.bubble blockquote{border-left:3px solid var(--accent);padding-left:12px;color:var(--text-secondary);margin:6px 0;font-style:italic}.status-bubble{display:flex;align-items:center;gap:8px;padding:10px 14px;background:var(--status-bg);border:1px solid var(--status-border);border-radius:var(--radius);font-size:.85rem;color:#92400e;align-self:flex-start;max-width:480px}.spinner{display:inline-block;width:14px;height:14px;border:2px solid #fbbf24;border-top:2px solid transparent;border-radius:50%;animation:spin .6s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.chat-input-row{display:flex;align-items:flex-end;gap:8px;padding:12px 24px 16px;background:#fff;border-top:1px solid #e5e7eb;flex-shrink:0}.chat-input{flex:1;padding:10px 14px;font-size:.9rem;border:1px solid #d1d5db;border-radius:var(--radius);resize:none;outline:none;font-family:inherit;line-height:1.5;max-height:160px;overflow-y:auto;transition:border-color .15s}.chat-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #4f8ef726}.chat-input:disabled{background:#f9fafb;opacity:.7;cursor:not-allowed}.send-btn{width:40px;height:40px;border:none;border-radius:50%;background:var(--accent);color:#fff;font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s}.send-btn:hover:not(:disabled){background:var(--accent-dark)}.send-btn:disabled{background:#9ca3af;cursor:not-allowed}.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:0 24px 32px}.welcome-brand{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px}.welcome-logo-row{display:flex;align-items:center;gap:16px}.welcome-RA-logo{width:64px;height:64px;flex-shrink:0}.welcome-logo{width:72px;height:72px;object-fit:contain}.welcome-title{font-size:2.2rem;font-family:PTCRaleway,sans-serif;line-height:1.1;text-align:center}.welcome-title-green{color:#4caf50;font-weight:700}.welcome-title-reg{color:#4caf50;font-weight:700;font-size:1rem;vertical-align:super}.welcome-title-dark{color:#2d3748;font-weight:700}.welcome-sub{color:var(--text-secondary);font-size:.92rem;text-align:center;max-width:480px;line-height:1.5}.welcome-input-row{display:flex;gap:8px;width:100%;max-width:700px}.welcome-input-row .chat-input{flex:1}.chart-wrapper{margin:12px 0;padding:16px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px}.chart-title{font-weight:600;font-size:.85rem;color:var(--text-secondary);margin-bottom:8px;text-align:center}.mobile-menu-btn{display:none;align-items:center;justify-content:center;background:transparent;border:none;color:var(--text-secondary);width:36px;height:36px;border-radius:8px;cursor:pointer;flex-shrink:0;transition:background .15s}.mobile-menu-btn:hover{background:#f3f4f6;color:var(--text-primary)}.sidebar-backdrop{display:none}@media (min-width: 768px) and (max-width: 1024px){.message-list{padding:16px}.message{max-width:95%}.welcome-title{font-size:1.9rem}.welcome-input-row{max-width:100%}}@media (max-width: 767px){.sidebar{position:fixed;left:0;top:0;bottom:0;z-index:200;width:var(--sidebar-width)!important;min-width:var(--sidebar-width)!important;max-width:var(--sidebar-width)!important;transform:translate(-100%);transition:transform .25s ease;box-shadow:4px 0 24px #00000059}.sidebar:not(.sidebar--collapsed){transform:translate(0)}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:199;animation:backdropFadeIn .2s ease}@keyframes backdropFadeIn{0%{opacity:0}to{opacity:1}}.main-pane{width:100%}.mobile-menu-btn{display:flex}.header{height:54px;padding:0 10px}.header-logo{height:38px}.header-RA-logo{height:20px;margin-left:6px}.header-brand{gap:4px}.header-brand-divider--tall{height:30px}.header-brand-text{font-size:.82rem;letter-spacing:.04em}.message-list{padding:12px 10px;gap:10px}.message{max-width:100%}.chat-input-row{padding:8px 10px 12px;gap:6px}.chat-input{font-size:.85rem}.edit-textarea{min-width:0;font-size:.85rem}.welcome{padding:0 14px 20px}.welcome-title{font-size:1.55rem}.welcome-sub{font-size:.84rem}.welcome-logo,.welcome-RA-logo{width:50px;height:50px}.welcome-logo-row{gap:10px}.welcome-input-row{max-width:100%;flex-direction:row}.bubble{font-size:.84rem;padding:10px 12px}.bubble pre{font-size:.76rem}.status-bubble{max-width:100%;font-size:.8rem}.avatar{width:28px;height:28px;font-size:13px}.session-dropdown{right:0;left:auto}.banner{padding:8px 14px;font-size:.8rem}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.response-time{display:flex;align-items:center;gap:4px;margin-top:8px;font-size:.7rem;color:var(--text-secondary);opacity:.75;-webkit-user-select:none;user-select:none}.table-export-wrap{margin:8px 0}.table-export-bar{display:flex;align-items:center;justify-content:flex-end;gap:6px;margin-bottom:4px}.table-export-label{font-size:.72rem;font-weight:500;color:var(--text-secondary);margin-right:2px}.table-export-btn{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:5px;border:1px solid #d1d5db;background:#fff;color:var(--text-secondary);font-size:.72rem;font-family:inherit;font-weight:500;cursor:pointer;transition:background .15s,color .15s,border-color .15s;white-space:nowrap}.table-export-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.table-export-btn--excel:hover{background:#217346;color:#fff;border-color:#217346}.table-scroll{overflow-x:auto;width:100%}