#gif-frame-deleter-wrapper { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; }
                    #gif-frame-deleter-wrapper * { box-sizing: border-box; }
                    .gfd-upload-area { border: 2px dashed #dee2e6; border-radius: 8px; padding: 40px; text-align: center; cursor: pointer; transition: all 0.3s; margin-bottom: 20px; background: #fafafa; }
                    .gfd-upload-area:hover { border-color: #4dabf7; background: #f0f7ff; }
                    .gfd-upload-area p { margin: 0; color: #868e96; font-size: 14px; }
                    .gfd-upload-icon { font-size: 32px; color: #adb5bd; margin-bottom: 8px; }
                    #gfd-file-input { display: none; }
                    .gfd-info-bar { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-bottom: 16px; padding: 12px 16px; background: #f8f9fa; border-radius: 8px; font-size: 14px; color: #495057; }
                    .gfd-info-bar span { white-space: nowrap; }
                    .gfd-select-bar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; padding: 12px 16px; background: #fff3cd; border-radius: 8px; font-size: 14px; }
                    .gfd-select-bar button { padding: 6px 14px; border: 1px solid #dee2e6; border-radius: 4px; background: #fff; cursor: pointer; font-size: 13px; transition: all 0.2s; }
                    .gfd-select-bar button:hover { background: #4dabf7; color: #fff; border-color: #4dabf7; }
                    .gfd-select-bar .gfd-selected-count { color: #856404; font-weight: 500; }
                    .gfd-frame-list { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; min-height: 60px; }
                    .gfd-frame-item { width: 140px; background: #fff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.08); position: relative; transition: all 0.2s; }
                    .gfd-frame-item.selected { outline: 3px solid #dc3545; outline-offset: -3px; }
                    .gfd-frame-item.selected .gfd-frame-checkbox { background: #dc3545; border-color: #dc3545; }
                    .gfd-frame-item.selected .gfd-frame-checkbox::after { opacity: 1; }
                    .gfd-frame-preview-wrap { position: relative; cursor: pointer; }
                    .gfd-frame-preview { width: 100%; height: 100px; object-fit: contain; display: block; background: repeating-conic-gradient(#f1f1f1 0% 25%, #fff 0% 50%) 50% / 16px 16px; }
                    .gfd-frame-checkbox { position: absolute; top: 4px; left: 4px; width: 22px; height: 22px; border-radius: 4px; border: 2px solid #adb5bd; background: rgba(255,255,255,0.9); cursor: pointer; transition: all 0.2s; }
                    .gfd-frame-checkbox::after { content: '✓'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); color: #fff; font-size: 14px; font-weight: bold; opacity: 0; transition: opacity 0.2s; }
                    .gfd-frame-info { padding: 6px 8px; background: #f8f9fa; font-size: 12px; color: #495057; text-align: center; }
                    .gfd-frame-info span { display: block; }
                    .gfd-frame-duration { color: #868e96; font-size: 11px; }
                    .gfd-action-bar { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
                    .gfd-btn { padding: 12px 32px; border: none; border-radius: 6px; font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
                    .gfd-btn-primary { background: linear-gradient(135deg, #4dabf7 0%, #339af0 100%); color: white; }
                    .gfd-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(51, 154, 240, 0.4); }
                    .gfd-btn-primary:disabled { background: #adb5bd; cursor: not-allowed; transform: none; box-shadow: none; }
                    .gfd-btn-danger { background: linear-gradient(135deg, #ff6b6b 0%, #dc3545 100%); color: white; }
                    .gfd-btn-danger:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4); }
                    .gfd-btn-danger:disabled { background: #adb5bd; cursor: not-allowed; transform: none; box-shadow: none; }
                    .gfd-btn-secondary { background: #339af0; color: white; }
                    .gfd-btn-secondary:hover { background: #228be6; }
                    .gfd-download-hidden { display: none; }
                    .gfd-progress { margin-top: 20px; display: none; }
                    .gfd-progress-bar { height: 6px; background: #e9ecef; border-radius: 3px; overflow: hidden; }
                    .gfd-progress-fill { height: 100%; background: linear-gradient(90deg, #4dabf7, #339af0); width: 0%; transition: width 0.3s; }
                    .gfd-progress-text { text-align: center; margin-top: 8px; font-size: 13px; color: #868e96; }
                    .gfd-result { margin-top: 20px; text-align: center; display: none; }
                    .gfd-result img { max-width: 100%; box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
                    .gfd-empty-hint { width: 100%; text-align: center; padding: 40px; color: #adb5bd; font-size: 14px; }
                    .gfd-loading { text-align: center; padding: 40px; color: #4dabf7; font-size: 15px; }
                                            .gfd-seo-content h2 { font-size:18px; color:#212529; margin-bottom:12px; font-weight:600; }
                        .gfd-seo-content h3 { font-size:16px; color:#343a40; margin-bottom:8px; font-weight:500; }
                        .gfd-seo-content p { font-size:14px; color:#495057; line-height:1.8; margin-bottom:12px; }
                        .gfd-seo-content ul { font-size:14px; color:#495057; line-height:1.8; margin-bottom:12px; padding-left:20px; }
                        .gfd-seo-content li { margin-bottom:6px; }
                        .gfd-seo-content .gfd-q-item { margin-bottom:16px; }
                        .gfd-seo-content .gfd-q-item strong { color:#212529; }