.sfb-tool{max-width:1100px;margin:0 auto}.sfb-privacy-badge{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--success-bg, #d4edda);border:1px solid var(--success, #28a745);border-radius:var(--radius);font-size:.875rem;color:#155724;margin-bottom:20px}.sfb-privacy-icon{font-size:1.1rem;flex-shrink:0}.sfb-upload{padding:56px 32px;text-align:center;border:2px dashed var(--border);border-radius:var(--radius-lg);cursor:pointer;transition:all .2s;background:var(--bg-secondary)}.sfb-upload:hover,.sfb-upload.drag{border-color:var(--primary);background:var(--primary-light, rgba(79, 70, 229, .05))}.sfb-upload-icon{font-size:3.5rem;margin-bottom:16px}.sfb-upload-text{font-size:1.1rem;margin:4px 0}.sfb-upload-text strong{color:var(--primary)}.sfb-upload-hint{font-size:.85rem;color:var(--text-secondary);margin-top:4px}.sfb-loading{text-align:center;padding:48px 32px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg)}.sfb-loading-icon{font-size:3rem;margin-bottom:16px;animation:sfbPulse 1.5s ease-in-out infinite}@keyframes sfbPulse{0%,to{opacity:1}50%{opacity:.5}}.sfb-loading-title{font-size:1.2rem;font-weight:600;color:var(--text);margin-bottom:6px}.sfb-loading-hint{font-size:.85rem;color:var(--text-secondary);margin-bottom:24px}.sfb-progress-track{width:100%;max-width:400px;height:8px;background:var(--bg-tertiary, #e5e7eb);border-radius:999px;overflow:hidden;margin:0 auto 10px}.sfb-progress-fill{height:100%;background:var(--primary);border-radius:999px;transition:width .3s ease}.sfb-progress-text{font-size:.82rem;color:var(--text-secondary)}.sfb-editor{display:flex;gap:20px;align-items:flex-start}.sfb-editor-main{flex:1;min-width:0}.sfb-canvas-wrap{position:relative;display:inline-block;max-width:100%;line-height:0;background:#f0f0f0;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}.sfb-canvas-wrap.sfb-drawing-mode{cursor:crosshair}.sfb-canvas-wrap.sfb-drawing-mode canvas{cursor:crosshair}#sfb-canvas{max-width:100%;height:auto;display:block}.sfb-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}.sfb-box{position:absolute;border:3px solid;border-radius:50%;cursor:pointer;pointer-events:auto;transition:border-color .15s,background .15s;display:flex;align-items:flex-start;justify-content:flex-end;box-sizing:border-box}.sfb-box-active{border-color:#e74c3c;background:#e74c3c14}.sfb-box-inactive{border-color:#ffffffb3;border-style:dashed;background:#ffffff1a}.sfb-box:hover{border-width:4px}.sfb-box-label{position:absolute;top:-22px;left:0;font-size:.7rem;font-weight:600;padding:2px 6px;border-radius:3px;white-space:nowrap;line-height:1.3}.sfb-box-active .sfb-box-label{background:#e74c3c;color:#fff}.sfb-box-inactive .sfb-box-label{background:#646464cc;color:#fff}.sfb-box-delete{position:absolute;top:-10px;right:-10px;width:20px;height:20px;background:#e74c3c;color:#fff;border-radius:50%;font-size:.65rem;display:flex;align-items:center;justify-content:center;cursor:pointer;border:2px solid #fff;line-height:1}.sfb-box-delete:hover{background:#c0392b}.sfb-manual-rect{position:absolute;border:2px dashed #3498db;background:#3498db26;pointer-events:none;border-radius:2px}.sfb-controls{width:260px;flex-shrink:0;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;display:flex;flex-direction:column;gap:20px}.sfb-controls-title{font-size:1.1rem;font-weight:700;margin:0;padding-bottom:12px;border-bottom:1px solid var(--border)}.sfb-control-group{display:flex;flex-direction:column;gap:8px}.sfb-label{font-size:.85rem;font-weight:600;color:var(--text-secondary);display:flex;justify-content:space-between;align-items:center}.sfb-strength-value{color:var(--primary);font-weight:700}.sfb-blur-types{display:grid;grid-template-columns:1fr 1fr;gap:6px}.sfb-blur-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 4px;border:2px solid var(--border);border-radius:var(--radius);background:var(--bg);cursor:pointer;transition:all .15s;font-size:.75rem;font-weight:600;color:var(--text-secondary)}.sfb-blur-btn:hover{border-color:var(--text-tertiary)}.sfb-blur-btn.active{border-color:var(--primary);background:var(--primary-light, rgba(79, 70, 229, .08));color:var(--primary)}.sfb-blur-icon{font-size:1.4rem}.sfb-emoji-picker{display:grid;grid-template-columns:repeat(4,1fr);gap:4px}.sfb-emoji-btn{font-size:1.4rem;padding:6px;border:2px solid var(--border);border-radius:var(--radius);background:var(--bg);cursor:pointer;transition:all .15s;line-height:1}.sfb-emoji-btn:hover{border-color:var(--text-tertiary);transform:scale(1.1)}.sfb-emoji-btn.active{border-color:var(--primary);background:var(--primary-light, rgba(79, 70, 229, .08))}.sfb-color-picker{display:flex;gap:6px;flex-wrap:wrap}.sfb-color-btn{width:32px;height:32px;border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:0;transition:all .15s}.sfb-color-btn:hover{transform:scale(1.1)}.sfb-color-btn.active{border-color:var(--primary);border-width:3px}.sfb-slider{-webkit-appearance:none;appearance:none;width:100%;height:6px;background:var(--bg-tertiary, #e5e7eb);border-radius:999px;outline:none;cursor:pointer}.sfb-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;background:var(--primary);border-radius:50%;cursor:pointer;border:2px solid #fff;box-shadow:0 1px 3px #0003}.sfb-slider::-moz-range-thumb{width:18px;height:18px;background:var(--primary);border-radius:50%;cursor:pointer;border:2px solid #fff;box-shadow:0 1px 3px #0003}.sfb-region-info{display:flex;flex-direction:column;gap:2px;font-size:.82rem;color:var(--text-secondary);padding:8px 10px;background:var(--bg);border-radius:var(--radius);border:1px solid var(--border)}.sfb-region-actions{display:flex;gap:6px}.sfb-btn-sm{flex:1;padding:7px 8px;font-size:.78rem;font-weight:600;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);color:var(--text);cursor:pointer;transition:all .15s;text-align:center}.sfb-btn-sm:hover{border-color:var(--primary);color:var(--primary)}.sfb-btn-manual{width:100%;flex:none}.sfb-btn-manual.active{background:var(--primary);color:#fff;border-color:var(--primary)}.sfb-manual-hint{font-size:.78rem;color:var(--primary);font-style:italic;margin:0}.sfb-download-row{display:flex;flex-wrap:wrap;gap:6px}.sfb-download-btn{flex:1 1 0;min-width:0;font-size:.85rem;font-weight:600;padding:10px 8px;text-align:center;overflow:hidden;white-space:nowrap}.sfb-new-btn{width:100%;margin-top:6px;font-size:.85rem}.sfb-error{text-align:center;padding:60px 20px}.sfb-error-icon{font-size:3rem;margin-bottom:16px}.sfb-error-msg{font-size:1.05rem;color:var(--text-secondary);margin-bottom:20px}.faq-section{max-width:800px;margin:48px auto 0}.faq-section h2{font-size:1.75rem;margin-bottom:28px}.faq-item{margin-bottom:24px}.faq-item h3{font-size:1.1rem;margin-bottom:8px}.faq-item p{color:var(--text-secondary);line-height:1.7}.faq-item a{color:var(--primary)}@media (max-width: 860px){.sfb-editor{flex-direction:column}.sfb-controls,.sfb-canvas-wrap{width:100%}}@media (max-width: 768px){.sfb-upload{padding:40px 20px}}