:root{--font-family-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Arial", "Noto Sans", "Liberation Sans", sans-serif, "LXGW WenKai Screen", "Yozai";--md-sys-color-primary-light: #8B8680;--md-sys-color-on-primary-light: #ffffff;--md-sys-color-surface-light: #FAF9F5;--md-sys-color-on-surface-light: #2B2926;--md-sys-color-on-surface-variant-light: #6B6763;--md-sys-color-outline-variant-light: #E3E1DB;--md-sys-color-surface-container-light: #F0EEE8;--md-sys-color-on-surface-container-light: #2B2926;--md-sys-color-error-light: #C65746;--md-sys-color-shadow-light: #000000;--glass-bg-light: rgba(250, 249, 245, .75);--code-bg-light: #EEECE6;--user-bubble-bg-light: #E3E1DB;--model-bubble-bg-light: #F0EEE8;--md-sys-color-primary-dark: #A8A39D;--md-sys-color-on-primary-dark: #1a1917;--md-sys-color-surface-dark: #1C1B19;--md-sys-color-on-surface-dark: #E8E6E0;--md-sys-color-on-surface-variant-dark: #A39F9A;--md-sys-color-outline-variant-dark: #3D3B37;--md-sys-color-surface-container-dark: #282725;--md-sys-color-on-surface-container-dark: #E8E6E0;--md-sys-color-error-dark: #E07A6A;--md-sys-color-shadow-dark: #000000;--glass-bg-dark: rgba(28, 27, 25, .75);--code-bg-dark: #242321;--user-bubble-bg-dark: #3D3B37;--model-bubble-bg-dark: #282725;--radius-2xl: 1rem;--radius-full: 9999px;--transition-fluid: .4s cubic-bezier(.2, .8, .2, 1)}body{--md-sys-color-primary: var(--dynamic-primary, var(--md-sys-color-primary-light));--md-sys-color-on-primary: var(--dynamic-on-primary, var(--md-sys-color-on-primary-light));--md-sys-color-surface: var(--dynamic-surface, var(--md-sys-color-surface-light));--md-sys-color-on-surface: var(--dynamic-on-surface, var(--md-sys-color-on-surface-light));--md-sys-color-on-surface-variant: var(--dynamic-on-surface-variant, var(--md-sys-color-on-surface-variant-light));--md-sys-color-outline-variant: var(--dynamic-outline-variant, var(--md-sys-color-outline-variant-light));--md-sys-color-surface-container: var(--dynamic-surface-container, var(--md-sys-color-surface-container-light));--md-sys-color-on-surface-container: var(--dynamic-on-surface-container, var(--md-sys-color-on-surface-container-light));--md-sys-color-error: var(--dynamic-error, var(--md-sys-color-error-light));--md-sys-color-shadow: var(--md-sys-color-shadow-light);--glass-bg: var(--dynamic-glass-bg, var(--glass-bg-light));--code-bg: var(--dynamic-code-bg, var(--code-bg-light));--user-bubble-bg: var(--dynamic-user-bubble-bg, var(--user-bubble-bg-light));--model-bubble-bg: var(--dynamic-model-bubble-bg, var(--model-bubble-bg-light));--shadow-md: 0 4px 12px rgba(var(--md-sys-color-shadow), .08);--accent-color: var(--md-sys-color-surface-container);--accent-color-text: var(--md-sys-color-on-surface-container);background-color:var(--md-sys-color-surface);color:var(--md-sys-color-on-surface);--font-family: var(--font-family-system);font-family:var(--font-family);font-size:calc(1rem * var(--font-size-multiplier, 1));margin:0}body[data-font=lxgw]{--font-family: "LXGW WenKai Screen", var(--font-family-system);font-family:var(--font-family)}body[data-font=yozai]{--font-family: "Yozai", var(--font-family-system);font-family:var(--font-family)}body[data-font=system]{--font-family: var(--font-family-system);font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body.theme-dark{--md-sys-color-primary: var(--dynamic-primary, var(--md-sys-color-primary-dark));--md-sys-color-on-primary: var(--dynamic-on-primary, var(--md-sys-color-on-primary-dark));--md-sys-color-surface: var(--dynamic-surface, var(--md-sys-color-surface-dark));--md-sys-color-on-surface: var(--dynamic-on-surface, var(--md-sys-color-on-surface-dark));--md-sys-color-on-surface-variant: var(--dynamic-on-surface-variant, var(--md-sys-color-on-surface-variant-dark));--md-sys-color-outline-variant: var(--dynamic-outline-variant, var(--md-sys-color-outline-variant-dark));--md-sys-color-surface-container: var(--dynamic-surface-container, var(--md-sys-color-surface-container-dark));--md-sys-color-on-surface-container: var(--dynamic-on-surface-container, var(--md-sys-color-on-surface-container-dark));--md-sys-color-error: var(--dynamic-error, var(--md-sys-color-error-dark));--md-sys-color-shadow: var(--md-sys-color-shadow-dark);--glass-bg: var(--dynamic-glass-bg, var(--glass-bg-dark));--code-bg: var(--dynamic-code-bg, var(--code-bg-dark));--user-bubble-bg: var(--dynamic-user-bubble-bg, var(--user-bubble-bg-dark));--model-bubble-bg: var(--dynamic-model-bubble-bg, var(--model-bubble-bg-dark));--shadow-md: 0 4px 12px rgba(var(--md-sys-color-shadow), .3)}body.theme-apple-light{--md-sys-color-primary: var(--dynamic-primary, #007aff);--md-sys-color-on-primary: var(--dynamic-on-primary, #ffffff);--md-sys-color-surface: var(--dynamic-surface, #F9F9F9);--md-sys-color-on-surface: var(--dynamic-on-surface, #1d1d1f);--md-sys-color-on-surface-variant: var(--dynamic-on-surface-variant, #6e6e73);--md-sys-color-outline-variant: var(--dynamic-outline-variant, rgba(255, 255, 255, .8));--md-sys-color-surface-container: var(--dynamic-surface-container, #e5e5ea);--md-sys-color-on-surface-container: var(--dynamic-on-surface-container, #1d1d1f);--md-sys-color-error: var(--dynamic-error, #ff3b30);--glass-bg: var(--dynamic-glass-bg, rgba(249, 249, 249, .65));--code-bg: var(--dynamic-code-bg, #f5f5f7);--user-bubble-bg: var(--dynamic-user-bubble-bg, #f0f0f0);--model-bubble-bg: var(--dynamic-model-bubble-bg, var(--md-sys-color-surface-container));--shadow-md: 0 4px 12px rgba(0, 0, 0, .05)}body.theme-apple-dark{--md-sys-color-primary: var(--dynamic-primary, #0a84ff);--md-sys-color-on-primary: var(--dynamic-on-primary, #ffffff);--md-sys-color-surface: var(--dynamic-surface, #1D1D1F);--md-sys-color-on-surface: var(--dynamic-on-surface, #f5f5f7);--md-sys-color-on-surface-variant: var(--dynamic-on-surface-variant, #8e8e93);--md-sys-color-outline-variant: var(--dynamic-outline-variant, rgba(80, 80, 82, .5));--md-sys-color-surface-container: var(--dynamic-surface-container, #2c2c2e);--md-sys-color-on-surface-container: var(--dynamic-on-surface-container, #f5f5f7);--md-sys-color-error: var(--dynamic-error, #ff453a);--glass-bg: var(--dynamic-glass-bg, rgba(40, 40, 42, .6));--code-bg: var(--dynamic-code-bg, #282c34);--user-bubble-bg: var(--dynamic-user-bubble-bg, #2c2c2e);--model-bubble-bg: var(--dynamic-model-bubble-bg, var(--md-sys-color-surface-container));--shadow-md: 0 4px 12px rgba(0, 0, 0, .25)}.glass-pane{background:var(--glass-bg);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border:1px solid var(--md-sys-color-outline-variant);box-shadow:var(--shadow-md)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background-color:var(--md-sys-color-on-surface-variant);border-radius:var(--radius-full);border:2px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background-color:var(--md-sys-color-primary)}.user-bubble{background:color-mix(in srgb,var(--user-bubble-bg) 75%,transparent);border-radius:var(--radius-2xl);color:var(--md-sys-color-on-surface);border:1px solid color-mix(in srgb,var(--user-bubble-bg) 15%,transparent)}body.theme-dark .user-bubble,body.theme-apple-dark .user-bubble{background:color-mix(in srgb,var(--user-bubble-bg) 75%,transparent);border:1px solid color-mix(in srgb,var(--user-bubble-bg) 15%,transparent)}.model-bubble{background-color:color-mix(in srgb,var(--model-bubble-bg) 1%,transparent);color:var(--md-sys-color-on-surface);border-radius:var(--radius-2xl);border:none;box-shadow:none}.model-selector-wrapper{position:relative;width:100%;max-width:280px}.model-selector-trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:.75rem 1rem;border-radius:var(--radius-full);transition:all .2s ease}.model-selector-trigger:hover{border-color:var(--md-sys-color-primary)}.model-selector-trigger:focus-visible{outline:2px solid var(--md-sys-color-primary);outline-offset:2px}.tool-selector-options,.model-selector-options{position:absolute;min-width:100%;width:max-content;z-index:10;padding:.5rem;border-radius:var(--radius-2xl);opacity:0;pointer-events:none;transition:all .2s ease-out;max-height:min(280px,45vh);overflow-y:auto;bottom:calc(100% + 8px);left:50%;transform:translate(-50%,10px);transform-origin:bottom center;-ms-overflow-style:none;scrollbar-width:none}.tool-selector-options{min-width:280px;left:1rem;transform:translate(0) translateY(10px)}.model-selector-options.header-selector{top:calc(100% + 8px);bottom:auto;left:auto;right:0;transform:translateY(10px);transform-origin:top center}.model-selector-options.visible,.tool-selector-options.visible{opacity:1;transform:translate(-50%);pointer-events:auto}.tool-selector-options.visible{transform:translate(0) translateY(0)}.model-selector-options.header-selector.visible{transform:translateY(0)}.model-selector-option{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius-2xl);cursor:pointer;transition:background-color .2s ease,color .2s ease}.model-selector-option:hover{background-color:color-mix(in srgb,var(--md-sys-color-primary) 20%,transparent)}.model-selector-option.active{background-color:var(--md-sys-color-surface-container);color:var(--md-sys-color-on-surface-container);font-weight:600}.history-item-actions,.folder-actions{display:flex;align-items:center;gap:.25rem;opacity:0;transition:opacity .2s ease}a:hover .history-item-actions,.history-item-actions:focus-within,.folder-header:hover .folder-actions,.folder-actions:focus-within{opacity:1}.history-item-actions button,.folder-actions button{padding:.3rem;border-radius:var(--radius-full);background-color:transparent;transition:background-color .2s ease}.history-item-actions button:hover,.folder-actions button:hover{background-color:color-mix(in srgb,var(--md-sys-color-on-surface) 25%,transparent)}.sidebar-search-wrapper{position:relative}.sidebar-search-input{width:100%;padding:.65rem 1rem .65rem 2.5rem;border-radius:var(--radius-full);background:color-mix(in srgb,var(--glass-bg) 50%,transparent);border:1px solid var(--md-sys-color-outline-variant);color:var(--md-sys-color-on-surface);font-size:.95rem;transition:all .2s ease-out}.sidebar-search-input::placeholder{color:var(--md-sys-color-on-surface-variant);opacity:.8}.sidebar-search-input:focus{outline:none;border-color:var(--md-sys-color-primary);box-shadow:0 0 0 2px color-mix(in srgb,var(--md-sys-color-primary) 40%,transparent)}.sidebar-search-icon{position:absolute;top:50%;left:1rem;transform:translateY(-50%);color:var(--md-sys-color-on-surface-variant);pointer-events:none}[data-tooltip]{position:relative}[data-tooltip]:after{content:attr(data-tooltip);position:absolute;background:#2c2c2e;color:#f5f5f7;padding:.5rem .75rem;border-radius:var(--radius-2xl);font-size:.875rem;font-weight:500;white-space:nowrap;opacity:0;pointer-events:none;transition:all .2s ease-out;z-index:10001}body.dark-mode [data-tooltip]:after{background:var(--glass-bg);color:var(--md-sys-color-on-surface);border:1px solid var(--md-sys-color-outline-variant)}[data-tooltip]:not([data-tooltip-placement]):after,[data-tooltip-placement=bottom]:after{top:100%;left:50%;transform:translate(-50%) translateY(10px) scale(.95);margin-top:8px}[data-tooltip]:not([data-tooltip-placement]):hover:after,[data-tooltip]:not([data-tooltip-placement]):focus-visible:after,[data-tooltip-placement=bottom]:hover:after{opacity:1;transform:translate(-50%) translateY(0) scale(1)}[data-tooltip-placement=top]:after{bottom:100%;left:50%;transform:translate(-50%) translateY(-10px) scale(.95);margin-bottom:8px}[data-tooltip-placement=top]:hover:after,[data-tooltip-placement=top]:focus-visible:after{opacity:1;transform:translate(-50%) translateY(0) scale(1)}[data-tooltip-placement=left]:after{top:50%;right:100%;transform:translateY(-50%) translate(-10px) scale(.95);margin-right:8px}[data-tooltip-placement=left]:hover:after,[data-tooltip-placement=left]:focus-visible:after{opacity:1;transform:translateY(-50%) translate(0) scale(1)}[data-tooltip-placement=right]:after{top:50%;left:100%;transform:translateY(-50%) translate(10px) scale(.95);margin-left:8px}[data-tooltip-placement=right]:hover:after,[data-tooltip-placement=right]:focus-visible:after{opacity:1;transform:translateY(-50%) translate(0) scale(1)}.modal-backdrop{position:fixed;inset:0;z-index:40;background-color:#0000004d;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);opacity:0;transition:opacity .3s ease-out}.modal-backdrop.visible{opacity:1}.modal-dialog{position:fixed;top:50%;left:50%;z-index:50;width:90%;max-height:85vh;transform:translate(-50%,-50%) scale(.95);opacity:0;transition:transform .3s ease-out,opacity .3s ease-out}.modal-dialog.visible{transform:translate(-50%,-50%) scale(1);opacity:1}.modal-dialog-sm{max-width:400px}.modal-dialog-md{max-width:550px}.modal-dialog-lg{max-width:700px}body.drawer-open{overflow:hidden}.drawer-backdrop{position:fixed;inset:0;z-index:45;background-color:#0000004d;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);opacity:0;pointer-events:none;transition:opacity .3s ease-out}body.drawer-open .drawer-backdrop{opacity:1;pointer-events:auto}.drawer{position:fixed;top:0;right:0;bottom:0;width:90%;max-width:400px;z-index:50;transform:translate(100%);transition:transform var(--transition-fluid);border-radius:0;border-left:1px solid var(--md-sys-color-outline-variant);border-top-left-radius:var(--radius-2xl);border-bottom-left-radius:var(--radius-2xl);background:var(--glass-bg);padding:1.5rem;display:flex;flex-direction:column;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);box-shadow:var(--shadow-md)}body.drawer-open .drawer{transform:translate(0)}.drawer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-shrink:0}.drawer-body{flex-grow:1;min-height:0}.input-glass,.select-glass{width:100%;background:color-mix(in srgb,var(--glass-bg) 25%,transparent);border:1px solid var(--md-sys-color-outline-variant);border-radius:var(--radius-2xl);padding:.75rem 1rem;font-size:1rem;color:var(--md-sys-color-on-surface);transition:all .2s ease-out;appearance:none}.input-glass:focus,.select-glass:focus{outline:none;border-color:var(--md-sys-color-primary);box-shadow:0 0 0 2px color-mix(in srgb,var(--md-sys-color-primary) 40%,transparent)}.input-glass::placeholder{color:var(--md-sys-color-on-surface-variant)}.view-wrapper{position:relative;width:100%;height:100%}.view-container{position:absolute;inset:0;transition:opacity .3s ease-in-out,transform .3s ease-in-out;opacity:0;transform:scale(.98);pointer-events:none}.view-container.active{opacity:1;transform:scale(1);pointer-events:auto}.dropzone-overlay{position:absolute;inset:1rem;z-index:50;background:var(--glass-bg);-webkit-backdrop-filter:blur(10px) saturate(180%);backdrop-filter:blur(10px) saturate(180%);border-radius:var(--radius-2xl);border:2px dashed color-mix(in srgb,var(--md-sys-color-primary) 40%,transparent);display:flex;align-items:center;justify-content:center;opacity:0;transform:scale(1.05);pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out,backdrop-filter .2s ease-out,border-color .2s ease-out}.dropzone-overlay.visible{opacity:1;transform:scale(1);pointer-events:auto;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border-color:color-mix(in srgb,var(--md-sys-color-primary) 50%,transparent)}.dropzone-overlay-content{display:flex;flex-direction:column;align-items:center;gap:1.5rem;color:var(--md-sys-color-on-surface);text-shadow:0 2px 4px var(--shadow-md)}@keyframes message-in{0%{opacity:0;transform:translateY(15px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.message-row:not(.deleting){animation:message-in .4s var(--transition-fluid) backwards}@keyframes history-item-in{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.history-item-enter{animation:history-item-in .4s ease-out backwards}.history-item{transition:max-height .35s ease-out,opacity .3s ease-out,padding .3s ease-out,margin .3s ease-out,background-color .2s ease,color .2s ease;max-height:60px;overflow:hidden;opacity:1}@keyframes history-item-out{0%{opacity:1;transform:scaleY(1);max-height:60px}to{opacity:0;transform:scaleY(.8);max-height:0;padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;overflow:hidden}}.history-item.deleting{transform-origin:top;animation:history-item-out .35s ease-out forwards}@keyframes history-item-archive{0%{opacity:1;transform:translate(0);max-height:60px}to{opacity:0;transform:translate(-100%);max-height:0;padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;overflow:hidden}}.history-item.archiving{animation:history-item-archive .4s ease-in-out forwards}.history-item.hiding{opacity:0;max-height:0;padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;pointer-events:none}.folder-wrapper{transition:max-height .35s ease-out,opacity .3s ease-out,padding .3s ease-out,margin .3s ease-out;max-height:2000px;overflow:hidden}@keyframes folder-out{0%{opacity:1;transform:scaleY(1);max-height:2000px}to{opacity:0;transform:scaleY(.8);max-height:0;padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;overflow:hidden}}.folder-wrapper.deleting{animation:folder-out .35s ease-out forwards}.folder-wrapper.hiding{opacity:0;max-height:0;padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0}.folder-header{display:flex;align-items:center;gap:.5rem;padding:.6rem .5rem;margin:.25rem 0;border-radius:var(--radius-2xl);cursor:pointer;font-weight:500;transition:background-color .2s ease}.folder-header:hover{background-color:color-mix(in srgb,var(--md-sys-color-on-surface) 8%,transparent)}.folder-chevron{transition:transform .2s ease-out;color:var(--md-sys-color-on-surface-variant)}.folder-chevron.open{transform:rotate(90deg)}.folder-content{padding-left:.75rem;max-height:0;overflow:hidden;transition:max-height .35s ease-out}.history-item.dragging{opacity:.4}.drop-target{background-color:color-mix(in srgb,var(--md-sys-color-primary) 20%,transparent)!important;outline:1px dashed var(--md-sys-color-primary);outline-offset:-2px}.root-drop-zone{padding:4px;margin-top:8px;border-radius:var(--radius-2xl);transition:background-color .2s ease}@keyframes file-preview-in{0%{opacity:0;transform:scale(.8);max-height:0px}to{opacity:1;transform:scale(1);max-height:80px}}@keyframes file-preview-out{0%{opacity:1;transform:scale(1);max-height:80px}to{opacity:0;transform:scale(.7);max-height:0;padding:0;margin:0;border:0}}.file-preview-wrapper{max-height:80px;overflow:hidden}.file-preview-wrapper.entering{animation:file-preview-in .3s var(--transition-fluid) forwards}.file-preview-wrapper.deleting{animation:file-preview-out .3s ease-out forwards;pointer-events:none}.file-preview-container{display:flex;gap:.75rem;padding:.5rem .75rem;overflow-x:auto;border-bottom:1px solid var(--md-sys-color-outline-variant)}.file-preview-item{position:relative;flex-shrink:0;width:80px;height:80px;border-radius:var(--radius-2xl);overflow:hidden;background-color:var(--md-sys-color-surface-variant);border:1px solid var(--md-sys-color-outline-variant)}.file-preview-item img{width:100%;height:100%;object-fit:cover}.file-preview-item .file-info{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:.5rem;text-align:center;color:var(--md-sys-color-on-surface)}.file-preview-item .file-info span{font-size:.75rem;word-break:break-all;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:.25rem}.pdf-parsing-card{display:flex;align-items:center;gap:.75rem;min-height:4rem;padding:.75rem;border-radius:var(--radius-2xl);background:var(--neu-field-bg, var(--md-sys-color-surface-variant));box-shadow:var(--neu-field-shadow, inset 0 1px 2px rgba(0, 0, 0, .08));color:var(--text-color)}.pdf-parsing-icon{width:2rem;height:2rem;border-radius:var(--radius-full);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--md-sys-color-primary);background:color-mix(in srgb,var(--md-sys-color-primary) 12%,transparent)}.pdf-parsing-title{font-size:.875rem;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pdf-parsing-message{margin-top:.125rem;font-size:.75rem;color:var(--text-color-secondary)}.pdf-parsing-track{height:.25rem;margin-top:.5rem;border-radius:var(--radius-full);overflow:hidden;background:color-mix(in srgb,var(--md-sys-color-on-surface) 10%,transparent)}.pdf-parsing-progress{height:100%;border-radius:inherit;background:var(--md-sys-color-primary);transition:width .25s ease}.pdf-parsing-percent{min-width:2.5rem;text-align:right;font-size:.75rem;font-weight:650;color:var(--text-color-secondary)}.remove-file-btn{position:absolute;top:4px;right:4px;width:20px;height:20px;border-radius:var(--radius-full);background-color:#0009;color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:.8;transition:opacity .2s ease,transform .2s ease;z-index:2}.remove-file-btn:hover{opacity:1;transform:scale(1.1)}@keyframes tool-chip-in{0%{opacity:0;transform:translateY(5px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}.active-tools-indicator{display:flex;gap:.5rem;padding:.5rem .75rem}.active-tool-chip{display:inline-flex;align-items:center;gap:.4rem;padding:.25rem .75rem;border-radius:var(--radius-full);background:color-mix(in srgb,var(--accent-color) 15%,transparent);border:1px solid color-mix(in srgb,var(--accent-color) 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