:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--primary-color: #00a8ff;--primary-hover: #0095e0;--secondary-color: #ff006e;--success-color: #00c853;--success-hover: #00b248;--text-primary: #ffffff;--text-secondary: #cccccc;--text-light: #999999;--bg-main: #1a1a1a;--bg-card: #2a2a2a;--border-color: #3a3a3a;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-xxl: 48px;--transition-fast: .15s ease;--transition-normal: .25s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;color:var(--text-primary);background-color:var(--bg-main);margin:0;overflow:hidden}#root{width:100%;height:100vh;overflow:hidden}.app-container{height:100vh;display:flex;flex-direction:column;width:100%;overflow:hidden}.app-header{padding:var(--spacing-sm) var(--spacing-md);background-color:#111;border-bottom:1px solid var(--border-color);display:flex;align-items:center;height:50px}.app-header h1{font-size:1.2rem;font-weight:500;color:var(--text-primary);margin:0}.tagline{font-size:.8rem;color:var(--text-secondary);margin-left:var(--spacing-md)}.app-main{flex:1;display:flex;overflow:hidden;width:100%}.app-layout{display:flex;width:100%;height:100%;overflow:hidden}@media (max-width: 1024px){.app-layout{flex-direction:column}}.content-area{flex:1;display:flex;flex-direction:column;overflow:hidden;background-color:var(--bg-main)}.top-row{display:flex;height:280px;min-height:280px;border-bottom:1px solid var(--border-color)}.bottom-row{flex:1;overflow:hidden;display:flex;flex-direction:column;border-top:1px solid var(--border-color);padding-top:var(--spacing-md)}.upload-container{width:280px;min-width:280px;border-right:1px solid var(--border-color);overflow:hidden}.preview-container-wrapper{flex:1;overflow:hidden;display:flex;align-items:center;justify-content:center;background-color:#1a1a1a}.preview-container{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;padding:var(--spacing-md)}.preview-controls{margin-top:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-md);width:100%;justify-content:center}.play-button:hover{background-color:#0096e6}.play-button:disabled{background-color:#444;cursor:not-allowed}.play-button.playing{background-color:var(--secondary-color)}.frame-info{font-size:.85rem;color:var(--text-light);min-width:80px;text-align:center}.preview-image{max-width:100%;max-height:200px;object-fit:contain;border-radius:var(--radius-sm);box-shadow:var(--shadow-md)}.empty-preview{display:flex;align-items:center;justify-content:center;height:100%;width:100%;color:var(--text-light);font-size:1rem;background-color:#0003}.timeline-manager{display:flex;flex-direction:column;width:100%;height:100%;padding:var(--spacing-md)}.timeline-controls{display:flex;align-items:center;gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.right-panel{width:280px;display:flex;flex-direction:column;border-left:1px solid var(--border-color);background-color:var(--bg-card);overflow-y:auto}.app-footer{text-align:center;padding:var(--spacing-sm);color:var(--text-light);font-size:.8rem;background-color:#111;border-top:1px solid var(--border-color)}.card{background-color:transparent;border-bottom:1px solid var(--border-color);padding:var(--spacing-md)}.section-title{font-size:.9rem;font-weight:500;margin-bottom:var(--spacing-sm);color:var(--text-primary);text-transform:uppercase;letter-spacing:.5px}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md)}.image-count{background-color:var(--primary-color);color:#fff;padding:var(--spacing-xs) var(--spacing-md);border-radius:20px;font-size:.9rem;font-weight:500}.section-desc{color:var(--text-secondary);margin-bottom:var(--spacing-lg);font-size:.95rem}.upload-section,.preview-section,.settings-section,.result-section{padding:var(--spacing-md);border-bottom:1px solid var(--border-color)}.dropzone{border:1px dashed var(--border-color);border-radius:var(--radius-sm);padding:var(--spacing-md);text-align:center;cursor:pointer;transition:all var(--transition-normal);background-color:#00a8ff0d;display:flex;flex-direction:column;align-items:center;justify-content:center}.dropzone:hover{border-color:var(--primary-color);background-color:#00a8ff1a}.dropzone-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm)}.dropzone-content svg{color:var(--primary-color);width:24px;height:24px;margin-bottom:var(--spacing-xs)}.dropzone-content p{font-size:.9rem;font-weight:500;margin-bottom:var(--spacing-xs)}.dropzone-hint{font-size:.75rem;color:var(--text-light)}.preview-section,.unified-manager{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:0}.image-list{display:flex;flex-wrap:wrap;gap:var(--spacing-sm);padding:var(--spacing-md);overflow-y:auto;flex:1;align-content:flex-start}.unified-image-list{display:flex;gap:var(--spacing-md);overflow-x:auto;padding:var(--spacing-sm) var(--spacing-md);padding-bottom:var(--spacing-md);min-height:160px;align-items:flex-start}.image-item,.unified-image-item{position:relative;border-radius:var(--radius-sm);overflow:hidden;cursor:grab;background-color:#222;width:100px;height:100px;margin-bottom:var(--spacing-sm);border:1px solid var(--border-color)}.unified-image-item{border:2px solid var(--border-color);transition:all var(--transition-fast);flex-shrink:0;display:flex;flex-direction:column;margin-bottom:0;width:160px;height:140px}.unified-image-item:hover{border-color:var(--primary-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.unified-image-item.active{border-color:var(--primary-color);background-color:#00a8ff1a}.unified-image-item.selected{border-color:var(--secondary-color);box-shadow:0 0 0 2px #ff006e4d}.image-preview{width:100%;height:100px;overflow:hidden}.image-preview img{width:100%;height:100%;object-fit:cover;display:block}.remove-btn{position:absolute;top:4px;right:4px;width:18px;height:18px;border-radius:50%;background-color:#0009;color:#ff4d4d;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);font-size:12px;padding:0}.image-item:hover .remove-btn,.unified-image-item:hover .remove-btn{opacity:1}.remove-btn:hover{background-color:#ff4d4d33;color:#f66}.frame-info-container{display:flex;flex-direction:column;padding:5px;background-color:#0000000d;border-top:1px solid var(--border-color)}.frame-number{background:#000000b3;color:#fff;font-size:12px;padding:2px 6px;border-radius:10px;display:inline-block;margin-bottom:5px;width:fit-content}.frame-delay-info{display:flex;align-items:center;justify-content:space-between;font-size:12px}.delay-value{font-size:11px;color:var(--text-secondary)}.settings-btn{background:none;border:none;cursor:pointer;color:var(--primary-color);padding:2px;display:flex;align-items:center;justify-content:center;border-radius:3px;transition:all .2s}.settings-btn:hover{background-color:#00a8ff1a}.frame-settings-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.frame-settings-modal{background-color:var(--bg-card);border-radius:8px;width:400px;max-width:90vw;box-shadow:0 10px 25px #00000080;display:flex;flex-direction:column;overflow:hidden;animation:modal-appear .2s ease-out}@keyframes modal-appear{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.frame-settings-header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;border-bottom:1px solid var(--border-color)}.frame-settings-header h3{margin:0;font-size:18px;font-weight:500}.close-btn{background:none;border:none;font-size:24px;cursor:pointer;color:var(--text-light);display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;transition:all .2s}.close-btn:hover{background-color:#ffffff1a;color:#fff}.frame-settings-content{padding:20px;display:flex;flex-direction:column;gap:20px}.frame-preview{display:flex;flex-direction:column;align-items:center;gap:10px}.frame-preview-image{max-width:200px;max-height:200px;object-fit:contain;border-radius:4px;border:1px solid var(--border-color);background-color:#222}.frame-name{font-size:14px;color:var(--text-secondary);text-align:center;word-break:break-all;max-width:100%}.frame-settings-form{display:flex;flex-direction:column;gap:15px}.frame-settings-footer{display:flex;justify-content:flex-end;gap:10px;padding:15px 20px;border-top:1px solid var(--border-color);background-color:#0000001a}.cancel-btn,.save-btn{padding:8px 16px;border-radius:4px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.cancel-btn{background:none;border:1px solid var(--border-color);color:var(--text-secondary)}.cancel-btn:hover{background-color:#ffffff0d}.save-btn{background-color:var(--primary-color);border:none;color:#fff}.save-btn:hover{background-color:#0090d9}.settings-section{padding:0}.settings-grid{display:flex;flex-direction:column;gap:var(--spacing-sm)}.setting-item{display:flex;flex-direction:column;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-color)}.setting-item label{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xs)}.setting-label{font-weight:500;font-size:.85rem}.setting-hint{font-size:.75rem;color:var(--text-light)}.setting-control{display:flex;align-items:center;gap:var(--spacing-sm)}.setting-control input[type=range]{flex:1;height:4px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:linear-gradient(to right,var(--primary-color),var(--primary-color) 50%,#444444 50%);border-radius:2px;outline:none;width:auto;padding:0;border:none}.setting-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:12px;height:12px;border-radius:50%;background:var(--primary-color);cursor:pointer;transition:all var(--transition-fast)}.setting-control input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.1)}.setting-value{min-width:40px;text-align:right;font-weight:500;color:var(--text-secondary);font-size:.8rem}.action-section{margin-top:var(--spacing-sm);display:flex;justify-content:flex-end;padding:var(--spacing-sm) var(--spacing-md);border-top:1px solid var(--border-color)}.delete-selected-btn{background-color:var(--secondary-color);color:#fff;border:none;padding:var(--spacing-xs) var(--spacing-md);font-size:.85rem;font-weight:500;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:var(--spacing-xs);margin-left:auto}.delete-selected-btn:hover{background-color:#ff0051}.unified-timeline-container{border-top:1px solid var(--border-color);padding:var(--spacing-md);height:100%;display:flex;flex-direction:column}.section-desc{font-size:.85rem;color:var(--text-light);margin-bottom:var(--spacing-sm)}.generate-btn{background-color:var(--primary-color);color:#fff;border:none;padding:var(--spacing-xs) var(--spacing-md);font-size:.85rem;font-weight:500;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:var(--spacing-xs);min-width:100px;justify-content:center}.generate-btn:hover:not(:disabled){background-color:var(--primary-hover)}.generate-btn:active:not(:disabled){opacity:.9}.generate-btn:disabled{background-color:#333;cursor:not-allowed;opacity:.5}.loading-spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.2);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.timeline-preview{margin-top:var(--spacing-md);border-top:1px solid var(--border-color);padding-top:var(--spacing-md)}.preview-container{position:relative;width:100%;height:200px;background-color:#222;border-radius:var(--radius-sm);overflow:hidden;margin-bottom:var(--spacing-md);display:flex;align-items:center;justify-content:center}.preview-image{max-width:100%;max-height:100%;object-fit:contain}.preview-controls{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-sm);background-color:#0009}.play-button{background-color:var(--primary-color);color:#fff;border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.play-button:hover:not(:disabled){background-color:var(--primary-hover)}.play-button:disabled{background-color:#444;cursor:not-allowed;opacity:.5}.play-button svg{width:18px;height:18px}.frame-info{color:#fff;font-size:.85rem;background-color:#00000080;padding:var(--spacing-xs) var(--spacing-sm);border-radius:var(--radius-sm)}.timeline-container{width:100%;overflow-x:auto;padding-bottom:var(--spacing-sm)}.timeline-frames{display:flex;gap:var(--spacing-sm);padding:var(--spacing-xs) 0;min-height:80px}.timeline-frame{display:flex;flex-direction:column;align-items:center;cursor:pointer;transition:all var(--transition-fast);border:2px solid transparent;border-radius:var(--radius-sm);padding:var(--spacing-xs)}.timeline-frame.active{border-color:var(--primary-color);background-color:#00a8ff1a}.timeline-frame:hover:not(.active){border-color:var(--border-color);background-color:#ffffff0d}.frame-thumbnail{width:60px;height:60px;border-radius:var(--radius-sm);overflow:hidden;background-color:#222}.frame-thumbnail img{width:100%;height:100%;object-fit:cover}.frame-number{margin-top:var(--spacing-xs);font-size:.75rem;color:var(--text-secondary);background-color:#0000004d;padding:2px 6px;border-radius:10px}.result-section{padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-color)}.gif-preview{margin:var(--spacing-sm) 0;border-radius:var(--radius-sm);overflow:hidden;background-color:#222;border:1px solid var(--border-color)}.gif-preview img{max-width:100%;max-height:300px;display:block;margin:0 auto}.result-actions{display:flex;justify-content:flex-end;margin-top:var(--spacing-sm)}.download-btn{display:flex;align-items:center;gap:var(--spacing-xs);background-color:var(--primary-color);color:#fff;text-align:center;padding:var(--spacing-xs) var(--spacing-md);text-decoration:none;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500;transition:all var(--transition-fast)}.download-btn:hover{background-color:var(--primary-hover)}.download-btn:active{opacity:.9}@media (max-width: 768px){.app-header h1{font-size:2rem}.app-main{padding:0 var(--spacing-md) var(--spacing-xl)}.card{padding:var(--spacing-lg)}.image-list{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:var(--spacing-sm)}.setting-item{gap:var(--spacing-sm)}.setting-control{flex-direction:column;align-items:stretch;gap:var(--spacing-sm)}.setting-value{text-align:left}.generate-btn,.download-btn{width:100%;justify-content:center}}