:root,[data-theme=light]{--bg-page: #f5f4ef;--bg-header: #eeece6;--bg-sidebar: #e8e6df;--bg-input: #eeece6;--bg-bubble-user: #2f2e2b;--bg-bubble-agent:#ffffff;--bg-bubble-error:#fee2e2;--bg-slash-menu: #ffffff;--bg-slash-hover: #f0efea;--bg-attach: #f0efea;--bg-system: transparent;--text-primary: #1a1a18;--text-secondary: #5a5a52;--text-muted: #8a8a82;--text-user: #f0ede6;--text-agent: #1a1a18;--text-error: #991b1b;--text-system: #6b7280;--text-link: #4a6fa5;--text-slash-cmd: #4a6fa5;--border: #dddbd3;--border-input: #c8c6be;--border-focus: #5a5854;--avatar-bg: #2f2e2b;--avatar-text: #f0ede6;--dot-color: #22c55e;--badge-bg: #dcfce7;--badge-text: #166534;--btn-icon-bg: transparent;--btn-icon-hover: #e0ded8;--btn-send-bg: #2f2e2b;--btn-send-text: #f0ede6;--btn-send-disabled: #c5c3bc;--copy-btn-color: #9ca3af;--copy-btn-hover: #6b7280;--copy-btn-done: #22c55e;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--sidebar-w: 240px;--input-max-w: 860px;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px}[data-theme=dark]{--bg-page: #282a2e;--bg-header: #1c1e21;--bg-sidebar: #1c1e21;--bg-input: #202226;--bg-bubble-user: #3e4148;--bg-bubble-agent:#1f2125;--bg-bubble-error:#3b1010;--bg-slash-menu: #1f2125;--bg-slash-hover: #2c2f35;--bg-attach: #2c2f35;--bg-system: transparent;--text-primary: #e2e4ea;--text-secondary: #9599a8;--text-muted: #62667a;--text-user: #eceef4;--text-agent: #e2e4ea;--text-error: #f87171;--text-system: #72768a;--text-link: #90afd4;--text-slash-cmd: #90afd4;--border: #34373e;--border-input: #4a4e5a;--border-focus: #686d80;--avatar-bg: #3e4148;--avatar-text: #eceef4;--dot-color: #22c55e;--badge-bg: #1a3a26;--badge-text: #86efac;--btn-icon-bg: transparent;--btn-icon-hover: #2e3138;--btn-send-bg: #4c5060;--btn-send-text: #eceef4;--btn-send-disabled: #2e3138;--copy-btn-color: #62667a;--copy-btn-hover: #9599a8;--copy-btn-done: #22c55e;--shadow-sm: 0 1px 3px rgba(0,0,0,.45);--shadow-md: 0 4px 16px 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767px){.sidebar{position:fixed;top:0;left:0;height:100%;width:min(var(--sidebar-w),85vw);transform:translate(-105%);box-shadow:var(--shadow-md)}.sidebar--open{transform:translate(0)}.sidebar-close{display:block}.sidebar-overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:49}}@media (min-width: 768px){.sidebar{position:relative;transform:none!important}.sidebar-overlay{display:none!important}.sidebar:not(.sidebar--open){display:none}}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:56px;background:var(--bg-header);border-bottom:1px solid var(--border);flex-shrink:0;gap:12px}.chat-header-left{display:flex;align-items:center;gap:10px;min-width:0;flex:1;overflow:hidden}.header-hamburger{font-size:18px;flex-shrink:0;touch-action:manipulation}.chat-header-right{display:flex;align-items:center;gap:8px;flex-shrink:0}.chat-agent-badge{display:flex;align-items:center;gap:6px;padding:3px 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#00000080}.msg-bubble--error{background:var(--bg-bubble-error);color:var(--text-error)}.msg-text{font-size:14.5px;line-height:1.6;white-space:pre-wrap;word-break:break-word}.msg-files{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.msg-file{border-radius:var(--radius-md);overflow:hidden}.msg-file-img{max-width:220px;max-height:180px;display:block;border-radius:var(--radius-md)}.msg-file-doc{display:flex;align-items:center;gap:6px;padding:6px 10px;background:#0000000d;border-radius:var(--radius-sm);font-size:13px}.msg-file-name{font-weight:500}.msg-file-size{color:var(--text-muted);font-size:11px}.msg-cursor{display:inline-block;animation:blink .8s steps(1) infinite;color:var(--text-secondary);margin-left:1px}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.msg-typing{display:inline-flex;gap:4px;padding:4px 0}.msg-typing span{width:7px;height:7px;border-radius:50%;background:var(--text-muted);animation:bounce 1.2s infinite ease-in-out}.msg-typing 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p{margin-bottom:.6em}.md-body p:last-child{margin-bottom:0}.md-body h1,.md-body h2,.md-body h3,.md-body h4{margin:1em 0 .4em;font-weight:700;line-height:1.3;color:var(--text-primary)}.md-body h1{font-size:1.3em}.md-body h2{font-size:1.15em}.md-body h3{font-size:1.05em}.md-body ul,.md-body ol{padding-left:1.4em;margin-bottom:.6em}.md-body li{margin-bottom:.2em}.md-body blockquote{border-left:3px solid var(--border);margin:.6em 0;padding:4px 12px;color:var(--text-secondary)}.md-body a{color:var(--text-link);text-decoration:underline}.md-code{background:#00000012;border-radius:4px;padding:1px 5px;font-size:13px;font-family:SF Mono,Fira Code,monospace}[data-theme=dark] .md-code{background:#ffffff1a}.md-pre{background:#0000000f;border-radius:var(--radius-sm);padding:10px 14px;overflow-x:auto;max-width:100%;box-sizing:border-box;margin:.6em 0;font-size:13px;font-family:SF Mono,Fira Code,monospace;line-height:1.5}[data-theme=dark] .md-pre{background:#00000059}.md-body 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10px;font-size:12px;color:var(--text-secondary);max-width:140px}.chat-attach-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:90px}.chat-attach-remove{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;background:#00000080;color:#fff;border:none;cursor:pointer;font-size:13px;display:flex;align-items:center;justify-content:center;line-height:1}.chat-input-wrap{border-top:1px solid var(--border);background:var(--bg-input);padding:10px 16px 12px;padding-bottom:max(12px,env(safe-area-inset-bottom));flex-shrink:0;position:relative}.chat-input-area{display:flex;align-items:flex-end;gap:12px;max-width:var(--input-max-w);margin:0 auto;position:relative}.chat-input{flex:1;resize:none;border:none;border-radius:0;background:transparent;color:var(--text-primary);font-size:14.5px;font-family:inherit;line-height:1.5;padding:9px 4px;outline:none;min-height:62px;max-height:160px;overflow-y:auto;field-sizing:content}[data-theme=dark] .chat-input{background:transparent}.chat-input:disabled{opacity:.6;cursor:not-allowed}.chat-btn{background:var(--btn-icon-bg);border:none;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s;display:flex;align-items:center;justify-content:center;flex-shrink:0}.chat-btn:disabled{opacity:.4;cursor:not-allowed}.chat-btn-icon{width:38px;height:38px;font-size:18px;color:var(--text-secondary);border-radius:50%}.chat-btn-icon:hover:not(:disabled){background:var(--btn-icon-hover);color:var(--text-primary)}.chat-btn--recording{color:#ef4444!important;animation:pulse-red 1.2s infinite}@keyframes pulse-red{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 6px #ef444400}}.chat-btn-send{width:40px;height:40px;border-radius:50%;background:var(--btn-send-bg);color:var(--btn-send-text);font-size:16px;box-shadow:0 2px 8px #0000002e;transition:opacity .15s,box-shadow 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img{height:80px}}.login-title{text-align:center;font-size:22px;font-weight:700;color:var(--text-primary);margin-bottom:6px}.login-subtitle{text-align:center;font-size:14px;color:var(--text-secondary);margin-bottom:28px}.login-form{display:flex;flex-direction:column;gap:14px}.login-field{display:flex;flex-direction:column;gap:5px}.login-label{font-size:13px;font-weight:600;color:var(--text-secondary)}.login-input{padding:10px 14px;border:1.5px solid var(--border-input);border-radius:var(--radius-sm);background:var(--bg-page);color:var(--text-primary);font-size:14.5px;font-family:inherit;outline:none;transition:border-color .15s}.login-input:focus{border-color:var(--border-focus)}.login-submit{margin-top:8px;padding:11px;background:var(--btn-send-bg);color:var(--btn-send-text);border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:background .15s}.login-submit:hover:not(:disabled){opacity:.85}.login-submit:disabled{opacity:.5;cursor:not-allowed}.login-error{padding:10px 14px;background:var(--bg-bubble-error);color:var(--text-error);border-radius:var(--radius-sm);font-size:13px;text-align:center}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--border-input)}.chat-plus-btn{flex-shrink:0;width:30px;height:30px;border-radius:50%;background:none;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:300;color:var(--text-secondary);transition:background .15s,color .15s,transform .2s;line-height:1;margin-left:4px}.chat-plus-btn:hover:not(:disabled){background:var(--btn-icon-hover);color:var(--text-primary)}.chat-plus-btn--open{color:var(--text-primary);transform:rotate(45deg)}.chat-plus-btn:disabled{opacity:.4;cursor:not-allowed}.chat-plus-menu{position:absolute;bottom:calc(100% + 8px);left:0;min-width:200px;background:var(--bg-slash-menu);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);z-index:110;overflow:hidden;animation:fadeUp .15s ease}@keyframes fadeUp{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.chat-plus-item{display:flex;align-items:center;gap:10px;width:100%;padding:11px 16px;background:none;border:none;cursor:pointer;font-size:14px;color:var(--text-primary);font-family:inherit;text-align:left;transition:background .12s}.chat-plus-item:hover{background:var(--bg-slash-hover)}.chat-plus-item-icon{font-size:16px;flex-shrink:0;width:22px;text-align:center}.chat-plus-item-slash{font-weight:700;font-size:17px;color:var(--text-slash-cmd)}.chat-textarea-wrap{flex:1;position:relative;display:flex;align-items:center;border:1.5px solid var(--border-input);border-radius:var(--radius-md);background:var(--bg-page);transition:border-color .15s,box-shadow .15s;padding:0 6px;min-height:42px}.chat-textarea-wrap:focus-within{border-color:var(--border-focus)}[data-theme=dark] .chat-textarea-wrap{background:#2c2f35;border-color:var(--border-input);box-shadow:0 0 0 1px #4a4e5a66}[data-theme=dark] .chat-textarea-wrap:focus-within{box-shadow:0 0 0 2px #686d8080}.chat-mic-btn{flex-shrink:0;width:34px;height:34px;border-radius:8px;background:var(--btn-send-bg);color:var(--btn-send-text);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:15px;transition:opacity .15s,transform .15s;box-shadow:0 1px 4px #00000026;margin-right:2px}.chat-mic-btn:hover:not(:disabled){opacity:.85;transform:scale(1.04)}.chat-mic-btn:disabled{background:var(--btn-send-disabled);box-shadow:none;cursor:not-allowed}.chat-mic-btn--recording{background:#ef4444!important;color:#fff!important;animation:pulse-red 1.2s infinite}.chat-send-btn{flex-shrink:0;width:34px;height:34px;margin-left:10px;border-radius:8px;background:var(--btn-send-bg);color:var(--btn-send-text);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:15px;margin-right:4px;transition:opacity .15s,transform .15s;box-shadow:0 1px 4px #00000026}.chat-send-btn:hover:not(:disabled){opacity:.85;transform:scale(1.04)}.chat-send-btn:disabled{background:var(--btn-send-disabled);box-shadow:none;cursor:not-allowed}@media (max-width: 480px){.msg-col{max-width:88%}.msg-bubble{max-width:100%}.chat-messages{padding:12px 10px}.chat-input-wrap{padding:8px 10px;padding-bottom:max(10px,env(safe-area-inset-bottom))}.slash-menu{left:0;right:0}.chat-plus-menu{min-width:180px}.chat-input{font-size:16px}}.files-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:200;display:flex;align-items:center;justify-content:center;padding:16px}.files-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%;max-width:480px;max-height:70vh;display:flex;flex-direction:column;overflow:hidden}.files-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.files-title{font-size:14px;font-weight:600;color:var(--text-primary);display:flex;align-items:center}.files-close{background:none;border:none;cursor:pointer;font-size:20px;color:var(--text-secondary);line-height:1;padding:0 2px}.files-close:hover{color:var(--text-primary)}.files-body{overflow-y:auto;flex:1;padding:8px 0}.files-empty{padding:24px 16px;text-align:center;color:var(--text-secondary);font-size:13px}.files-item{display:flex;align-items:center;gap:10px;padding:10px 16px;text-decoration:none;color:var(--text-primary);transition:background .12s;cursor:pointer}.files-item:hover{background:var(--btn-icon-hover)}.files-item-icon{color:var(--text-secondary);flex-shrink:0}.files-item-dl{color:var(--text-secondary);flex-shrink:0;margin-left:auto}.files-item-name{font-size:13.5px;font-weight:500;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.files-item-meta{font-size:11.5px;color:var(--text-secondary);white-space:nowrap;flex-shrink:0}.sidebar-files{border-top:1px solid var(--border);padding:8px 0 12px;flex-shrink:0}.sidebar-files-header{display:flex;align-items:center;gap:6px;padding:6px 16px 4px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted)}.sidebar-files-empty{padding:6px 16px;font-size:12px;color:var(--text-muted)}.sidebar-file-item{display:flex;align-items:center;gap:8px;padding:7px 16px;color:var(--text-primary);text-decoration:none;font-size:13px;transition:background .12s;min-width:0}.sidebar-file-item:hover{background:var(--btn-icon-hover)}.sidebar-file-item svg{flex-shrink:0;color:var(--text-muted)}.sidebar-file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.sidebar-file-size{font-size:11px;color:var(--text-muted);flex-shrink:0}.fbrowser{display:flex;flex-direction:column;width:100%;height:400px;flex-shrink:0;background:var(--bg-main);border-top:1px solid var(--border);overflow:hidden}.fbrowser-header{display:flex;align-items:center;justify-content:space-between;padding:0 16px;height:56px;background:var(--bg-header);border-bottom:1px solid var(--border);flex-shrink:0}.fbrowser-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-primary)}.fbrowser-close{background:none;border:none;cursor:pointer;color:var(--text-secondary);display:flex;align-items:center;padding:6px;border-radius:var(--radius-sm);transition:background .15s}.fbrowser-close:hover{background:var(--btn-icon-hover);color:var(--text-primary)}.fbrowser-body{flex:1;overflow-y:auto;padding:8px 0}.fbrowser-empty{padding:32px 16px;text-align:center;color:var(--text-muted);font-size:13px}.fbrowser-row{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--border);transition:background .12s}.fbrowser-row:hover{background:var(--btn-icon-hover)}.fbrowser-row:last-child{border-bottom:none}.fbrowser-row-icon{color:var(--text-muted);flex-shrink:0}.fbrowser-row-name{flex:1;font-size:13.5px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--text-primary)}.fbrowser-row-size{font-size:12px;color:var(--text-muted);white-space:nowrap;flex-shrink:0;min-width:54px;text-align:right}.fbrowser-row-date{font-size:12px;color:var(--text-muted);white-space:nowrap;flex-shrink:0}.fbrowser-btn{flex-shrink:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);text-decoration:none;transition:color .15s,background .15s,border-color .15s}.fbrowser-btn:hover{color:var(--text-primary);background:var(--btn-icon-hover);border-color:var(--text-muted)}.fbrowser-btn:disabled{opacity:.4;cursor:not-allowed}.fbrowser-btn--loading{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.fbrowser-footer{padding:12px 16px;border-top:1px solid var(--border);flex-shrink:0}.fbrowser-upload-btn{display:flex;align-items:center;gap:8px;background:none;border:1px dashed var(--border);border-radius:var(--radius-sm);padding:9px 14px;font-size:13px;color:var(--text-secondary);cursor:pointer;width:100%;justify-content:center;transition:border-color .15s,color .15s,background .15s}.fbrowser-upload-btn:hover{border-color:var(--text-muted);color:var(--text-primary);background:var(--btn-icon-hover)}@media (min-width: 768px){.chat-plus-item--mobile-only{display:none}}button.sidebar-link{background:none;border:none;width:100%;text-align:left;cursor:pointer;font-family:inherit}.sidebar-group--files{border-top:1px solid var(--border);margin-top:4px;padding-top:4px}