:root,[data-ultra-theme=light]{--ultra-bg-page: #f4f5f7;--ultra-bg-modal: #ffffff;--ultra-bg-panel: #f8f9fa;--ultra-bg-sidebar: #1e2028;--ultra-bg-header: #ffffff;--ultra-bg-footer: #ffffff;--ultra-bg-canvas: #e8e9ec;--ultra-text-primary: #1a1d23;--ultra-text-secondary: #6b7280;--ultra-text-on-dark: #f0f1f3;--ultra-text-label: #374151;--ultra-text-hint: #9ca3af;--ultra-border: #e5e7eb;--ultra-border-strong: #d1d5db;--ultra-primary: #6366f1;--ultra-primary-hover: #5558e8;--ultra-primary-active: #4547c4;--ultra-primary-text: #ffffff;--ultra-secondary: #f3f4f6;--ultra-secondary-hover: #e9eaec;--ultra-secondary-text: #374151;--ultra-success: #10b981;--ultra-warning: #f59e0b;--ultra-error: #ef4444;--ultra-info: #3b82f6;--ultra-ai-gradient: linear-gradient(135deg, #6366f1, #8b5cf6, #ec4899);--ultra-shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--ultra-shadow-md: 0 4px 12px rgba(0,0,0,.12), 0 2px 4px rgba(0,0,0,.06);--ultra-shadow-lg: 0 20px 60px rgba(0,0,0,.18), 0 8px 20px rgba(0,0,0,.1);--ultra-radius-sm: 4px;--ultra-radius-md: 8px;--ultra-radius-lg: 12px;--ultra-radius-xl: 16px;--ultra-font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;--ultra-font-mono: "JetBrains Mono", "Fira Code", monospace;--ultra-transition: .15s ease;--ultra-transition-md: .25s ease;--ultra-header-h: 52px;--ultra-footer-h: 64px;--ultra-sidebar-w: 72px;--ultra-options-w: 280px;--ultra-zindex-modal: 9000;--ultra-zindex-overlay: 9100;--ultra-zindex-toast: 9200}[data-ultra-theme=dark]{--ultra-bg-page: #0f1117;--ultra-bg-modal: #1a1d27;--ultra-bg-panel: #22263a;--ultra-bg-sidebar: #13151e;--ultra-bg-header: #1a1d27;--ultra-bg-footer: #1a1d27;--ultra-bg-canvas: #0f1117;--ultra-text-primary: #f0f1f3;--ultra-text-secondary: #9ca3af;--ultra-text-on-dark: #f0f1f3;--ultra-text-label: #d1d5db;--ultra-text-hint: #6b7280;--ultra-border: #2e3347;--ultra-border-strong: #3d4460;--ultra-secondary: #252840;--ultra-secondary-hover: #2e3352;--ultra-secondary-text: 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var(--ultra-transition);box-shadow:var(--ultra-shadow-sm);-webkit-user-select:none;user-select:none}.ultra-trigger-btn:hover:not(:disabled){background:var(--ultra-primary-hover);box-shadow:var(--ultra-shadow-md);transform:translateY(-1px)}.ultra-trigger-btn:active:not(:disabled){background:var(--ultra-primary-active);transform:translateY(0)}.ultra-trigger-btn:disabled{opacity:.6;cursor:not-allowed}.ultra-license-badge{font-size:11px;color:var(--ultra-warning);font-family:var(--ultra-font)}.ultra-license-gate{display:flex;flex-direction:column;gap:6px;margin-top:6px;font-family:var(--ultra-font)}.ultra-trial-btn{font-size:12px;padding:5px 12px;background:var(--ultra-primary);color:#fff;border:none;border-radius:6px;cursor:pointer;font-family:var(--ultra-font)}.ultra-trial-btn:hover{background:var(--ultra-primary-hover, #4338ca)}.ultra-trial-form{display:flex;flex-direction:column;gap:6px;background:var(--ultra-surface, #1e2235);border:1px solid var(--ultra-border, 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#64748b)}.ultra-trial-indicator{font-size:11px;color:var(--ultra-text-muted, #94a3b8);font-family:var(--ultra-font);margin-top:4px}.ultra-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:var(--ultra-zindex-modal);display:flex;align-items:stretch;justify-content:stretch;background:#000000d9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:ultra-fade-in .25s ease;font-family:var(--ultra-font)}@keyframes ultra-fade-in{0%{opacity:0}to{opacity:1}}.ultra-modal-container{display:flex;flex-direction:column;width:100%;height:100%;background:var(--ultra-bg-modal);overflow:hidden}.ultra-header-bar{display:flex;align-items:center;gap:12px;padding:0 16px;height:var(--ultra-header-h);background:var(--ultra-bg-header);border-bottom:1px solid var(--ultra-border);flex-shrink:0;position:relative}.ultra-logo{display:flex;align-items:center;gap:8px;color:var(--ultra-primary);font-weight:700;font-size:14px}.ultra-logo-img{height:28px;width:auto;display:block;object-fit:contain}.ultra-logo-name{color:var(--ultra-text-primary);font-size:13px;font-weight:600}.ultra-header-file-info{display:flex;align-items:center;gap:12px;margin-left:12px;flex:1}.ultra-filename{font-size:13px;color:var(--ultra-text-secondary);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ultra-dimensions{font-size:12px;color:var(--ultra-text-hint);font-variant-numeric:tabular-nums}.ultra-header-actions{display:flex;align-items:center;gap:4px;margin-left:auto}.ultra-header-divider{width:1px;height:20px;background:var(--ultra-border);margin:0 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var(--ultra-transition)}.ultra-history-item:hover{background:var(--ultra-secondary)}.ultra-history-item--active{background:#6366f11a}.ultra-history-thumb{width:32px;height:24px;object-fit:cover;border-radius:2px;flex-shrink:0}.ultra-history-thumb-placeholder{width:32px;height:24px;background:var(--ultra-secondary);border-radius:2px}.ultra-history-label{font-size:12px;color:var(--ultra-text-primary);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ultra-history-current-badge{font-size:9px;background:var(--ultra-primary);color:#fff;padding:1px 5px;border-radius:10px}.ultra-history-empty{font-size:12px;color:var(--ultra-text-hint);padding:16px;text-align:center}.ultra-history-panel__footer{padding:8px;border-top:1px solid var(--ultra-border)}.ultra-loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;z-index:var(--ultra-zindex-overlay)}.ultra-spinner{width:36px;height:36px;border:3px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:ultra-spin .7s linear infinite}.ultra-spinner--sm{width:14px;height:14px;border-width:2px}@keyframes ultra-spin{to{transform:rotate(360deg)}}@keyframes ultra-indeterminate{0%{margin-left:-40%;width:40%}to{margin-left:100%;width:40%}}.ultra-loading-message{color:#fff;font-size:14px;font-family:var(--ultra-font)}.ultra-toast-container{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:var(--ultra-zindex-toast);pointer-events:none}.ultra-toast{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--ultra-bg-modal);border:1px solid var(--ultra-border);border-radius:var(--ultra-radius-md);box-shadow:var(--ultra-shadow-md);font-family:var(--ultra-font);font-size:13px;color:var(--ultra-text-primary);max-width:360px;animation:ultra-toast-in .25s ease;pointer-events:all;border-left:4px solid var(--ultra-info)}.ultra-toast--success{border-left-color:var(--ultra-success)}.ultra-toast--error{border-left-color:var(--ultra-error)}.ultra-toast--warning{border-left-color:var(--ultra-warning)}.ultra-toast--info{border-left-color:var(--ultra-info)}@keyframes ultra-toast-in{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.ultra-toast__icon{font-size:14px}.ultra-toast__message{flex:1;line-height:1.4}.ultra-toast__close{background:transparent;border:none;color:var(--ultra-text-hint);cursor:pointer;font-size:16px;padding:0;line-height:1}.ultra-ai-badge{font-size:9px;font-weight:700;letter-spacing:.05em;padding:2px 6px;background:var(--ultra-ai-gradient);color:#fff;border-radius:10px}.ultra-ai-locked{padding:24px 16px;text-align:center}.ultra-ai-locked__icon{font-size:32px;margin-bottom:12px}.ultra-ai-locked__title{font-size:15px;font-weight:600;color:var(--ultra-text-primary);margin-bottom:8px}.ultra-ai-locked__desc{font-size:13px;color:var(--ultra-text-secondary);line-height:1.5;margin-bottom:8px}.ultra-ai-locked__cta{font-size:12px;color:var(--ultra-text-hint);line-height:1.5}.ultra-ai-disabled{padding:24px 16px;text-align:center;border:1px dashed var(--ultra-border);border-radius:var(--ultra-radius);background:var(--ultra-secondary);margin:8px 0}.ultra-ai-disabled__icon{font-size:28px;margin-bottom:10px}.ultra-ai-disabled__title{font-size:14px;font-weight:600;color:var(--ultra-text-primary);margin-bottom:6px}.ultra-ai-disabled__desc{font-size:12px;color:var(--ultra-text-secondary);line-height:1.5;margin-bottom:8px}.ultra-ai-disabled__code{display:inline-block;font-family:monospace;font-size:11px;padding:4px 10px;background:var(--ultra-bg-panel);border:1px solid var(--ultra-border);border-radius:var(--ultra-radius-sm);color:var(--ultra-primary);-webkit-user-select:all;user-select:all}.ultra-ai-progress-track{width:100%;height:6px;background:var(--ultra-secondary);border-radius:3px;overflow:hidden}.ultra-ai-progress-fill{height:100%;background:var(--ultra-primary);border-radius:3px;transition:width .2s ease}.ultra-bg-options{display:flex;flex-wrap:wrap;gap:6px}.ultra-bg-option{padding:5px 10px;background:var(--ultra-secondary);border:1px solid var(--ultra-border);border-radius:var(--ultra-radius-sm);font-size:12px;font-family:var(--ultra-font);color:var(--ultra-text-primary);cursor:pointer;display:flex;align-items:center;gap:4px;transition:all var(--ultra-transition)}.ultra-bg-option:hover{border-color:var(--ultra-primary)}.ultra-bg-option--active{background:var(--ultra-primary);color:#fff;border-color:var(--ultra-primary)}.ultra-hint-sm{font-size:11px;color:var(--ultra-text-hint);margin-top:4px;line-height:1.4}.ultra-variants-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.ultra-variant-item{background:transparent;border:2px solid var(--ultra-border);border-radius:var(--ultra-radius-sm);cursor:pointer;overflow:hidden;transition:border-color var(--ultra-transition);display:flex;flex-direction:column}.ultra-variant-item:hover{border-color:var(--ultra-primary)}.ultra-variant-item--selected{border-color:var(--ultra-success)}.ultra-variant-img{width:100%;aspect-ratio:1;object-fit:cover;display:block}.ultra-variant-label{font-size:10px;padding:4px;text-align:center;color:var(--ultra-text-secondary);font-family:var(--ultra-font)}.ultra-warning{color:var(--ultra-warning);font-weight:600}.ultra-hint{font-size:12px;color:var(--ultra-text-hint);line-height:1.5}.ultra-steps{font-size:12px;color:var(--ultra-text-secondary);line-height:1.8;padding-left:16px}.ultra-char-count{font-size:11px;color:var(--ultra-text-hint);text-align:right;margin-top:2px}.ultra-chip-group{display:flex;flex-wrap:wrap;gap:4px}.ultra-chip{padding:4px 10px;background:var(--ultra-secondary);border:1px solid var(--ultra-border);border-radius:20px;font-size:11px;font-family:var(--ultra-font);color:var(--ultra-text-primary);cursor:pointer;white-space:nowrap;transition:all var(--ultra-transition)}.ultra-chip:hover{border-color:var(--ultra-primary)}.ultra-chip--active{background:var(--ultra-primary);color:#fff;border-color:var(--ultra-primary)}.ultra-preset-chips{display:flex;flex-wrap:wrap;gap:4px}.ultra-input-with-btn{display:flex;gap:6px;align-items:center}.ultra-input-suffix{font-size:12px;color:var(--ultra-text-hint)}.ultra-inline-controls{display:flex;gap:12px;align-items:flex-end}.ultra-text-preview{padding:12px;background:#0009;border-radius:var(--ultra-radius-sm);text-align:center;word-break:break-word;line-height:1.4}.ultra-toggle-label{display:flex;align-items:center;gap:8px;cursor:pointer}.ultra-toggle-input{position:absolute;opacity:0;width:0;height:0}.ultra-toggle-track{width:36px;height:20px;background:var(--ultra-border-strong);border-radius:10px;position:relative;transition:background var(--ultra-transition);flex-shrink:0}.ultra-toggle-input:checked+.ultra-toggle-track{background:var(--ultra-primary)}.ultra-toggle-track:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform var(--ultra-transition)}.ultra-toggle-input:checked+.ultra-toggle-track:after{transform:translate(16px)}.ultra-toggle-text{font-size:12px;color:var(--ultra-text-primary)}.ultra-layer-list{display:flex;flex-direction:column;gap:4px}.ultra-layer-item{display:flex;align-items:center;gap:6px;padding:4px 6px;background:var(--ultra-secondary);border-radius:var(--ultra-radius-sm);border:1.5px solid transparent;transition:border-color var(--ultra-transition)}.ultra-layer-item--active{border-color:var(--ultra-primary);background:#6366f114}.ultra-layer-visibility{background:none;border:none;cursor:pointer;font-size:14px}.ultra-layer-visibility--hidden{opacity:.4}.ultra-layer-name{flex:1;font-size:12px;color:var(--ultra-text-primary)}.ultra-layer-remove{background:none;border:none;cursor:pointer;color:var(--ultra-error);font-size:14px}.ultra-crop-overlay,.ultra-grid-overlay{-webkit-user-select:none;user-select:none}.ultra-checkbox-field{display:flex;align-items:center;margin-right:16px}.ultra-checkbox-label{display:flex;align-items:center;cursor:pointer;font-size:14px;color:var(--ultra-text-secondary);-webkit-user-select:none;user-select:none;gap:8px}.ultra-checkbox{width:16px;height:16px;accent-color:var(--ultra-primary);cursor:pointer}.ultra-numeric-suffix{font-size:12px;color:var(--ultra-text-secondary);margin-left:4px;font-weight:500}@media(max-width:1024px){.ultra-options-panel{position:fixed;bottom:var(--ultra-footer-h);left:var(--ultra-sidebar-w);right:0;width:auto;max-height:280px;border-top:1px solid var(--ultra-border);border-left:none}}@media(max-width:768px){.ultra-tool-sidebar{position:fixed;bottom:var(--ultra-footer-h);left:0;right:0;width:100%;height:56px;flex-direction:row;overflow-x:auto;overflow-y:hidden;border-right:none;border-top:1px solid rgba(255,255,255,.05)}.ultra-tool-group{flex-direction:row;border-bottom:none;border-right:1px solid rgba(255,255,255,.05);padding:0 4px}.ultra-tool-group-label{display:none}.ultra-tool-btn{width:48px;height:48px}.ultra-tool-label{display:none}.ultra-options-panel{bottom:calc(var(--ultra-footer-h) + 56px);max-height:240px;left:0}.ultra-footer-bar{padding:0 10px;gap:8px}.ultra-footer-section:not(:last-child){display:none}}.demo-header{background:var(--ultra-bg-modal, #fff);border-bottom:1px solid var(--ultra-border, #e5e7eb);padding:0}.demo-header__inner{max-width:900px;margin:0 auto;padding:20px 24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}.demo-title{font-size:22px;font-weight:700;color:var(--ultra-text-primary, #1a1d23)}.demo-title__logo{margin-right:6px}.demo-title__version{font-size:14px;background:var(--ultra-primary, #6366f1);color:#fff;padding:1px 8px;border-radius:20px;vertical-align:middle}.demo-subtitle{font-size:13px;color:var(--ultra-text-secondary, #6b7280)}.demo-theme-toggle{margin-left:auto;padding:6px 14px;background:var(--ultra-secondary, #f3f4f6);border:1px solid var(--ultra-border, #e5e7eb);border-radius:20px;font-size:13px;cursor:pointer;color:var(--ultra-text-primary, #1a1d23);font-family:var(--ultra-font)}.demo-tabs{display:flex;gap:0;padding:0 24px;background:var(--ultra-bg-modal, #fff);border-bottom:1px solid var(--ultra-border, #e5e7eb);max-width:900px;margin:0 auto;overflow-x:auto}.demo-tab{padding:10px 18px;background:transparent;border:none;border-bottom:2px solid transparent;font-family:var(--ultra-font);font-size:13px;color:var(--ultra-text-secondary, #6b7280);cursor:pointer;white-space:nowrap;transition:all .15s ease}.demo-tab:hover{color:var(--ultra-text-primary, #1a1d23)}.demo-tab--active{color:var(--ultra-primary, #6366f1);border-bottom-color:var(--ultra-primary, #6366f1);font-weight:600}.demo-main{max-width:900px;margin:0 auto;padding:24px;display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:start}@media(max-width:640px){.demo-main{grid-template-columns:1fr}}.demo-card{background:var(--ultra-bg-modal, #fff);border:1px solid var(--ultra-border, #e5e7eb);border-radius:12px;padding:24px}.demo-card__title{font-size:18px;font-weight:700;color:var(--ultra-text-primary, #1a1d23);margin-bottom:6px}.demo-card__desc{font-size:13px;color:var(--ultra-text-secondary, #6b7280);margin-bottom:16px}.demo-code{background:#1e2028;color:#a5b4fc;border-radius:8px;padding:14px 16px;font-size:12px;font-family:var(--ultra-font-mono, monospace);overflow-x:auto;margin-bottom:20px;line-height:1.6;white-space:pre}.demo-upload-area{display:flex;justify-content:center;padding:8px 0}.demo-result{margin-top:20px;padding-top:20px;border-top:1px solid var(--ultra-border, #e5e7eb)}.demo-result__title{font-size:14px;font-weight:600;color:var(--ultra-success, #10b981);margin-bottom:4px}.demo-result__url{font-size:11px;color:var(--ultra-text-hint, #9ca3af);word-break:break-all;margin-top:8px}.demo-features{background:var(--ultra-bg-modal, #fff);border:1px solid var(--ultra-border, #e5e7eb);border-radius:12px;padding:20px}.demo-features__title{font-size:14px;font-weight:700;color:var(--ultra-text-primary, #1a1d23);margin-bottom:12px}.demo-features__list{list-style:none;display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ultra-text-secondary, #6b7280);line-height:1.4}body{padding:0;margin:0}.mode-btn-group{display:flex;align-items:center;justify-content:center;background:var(--ultra-bg-header);border-radius:100px;padding:3px}.mode-btn-group button{border:0!important;width:26px!important;height:26px!important}