:root{--bg: #0f1117;--panel: #181b24;--panel-2: #1f232f;--border: #2a2f3d;--text: #e6e8ee;--muted: #8b93a7;--primary: #6366f1;--primary-hover: #4f52d6;--danger: #ef4444}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,sans-serif;background:var(--bg);color:var(--text)}.app{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-bottom:1px solid var(--border)}.topbar h1{margin:0;font-size:20px}.badge{font-size:13px;color:var(--muted);background:var(--panel-2);padding:4px 10px;border-radius:8px}.badge .warn{color:var(--danger);font-style:normal}.banner{padding:10px 28px;font-size:14px}.banner-error{background:#ef44441f;color:#fca5a5}.banner-warn{background:#f59e0b1f;color:#fcd34d}.body{flex:1;display:flex;gap:20px;padding:20px 28px}.main{flex:1;min-width:0}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{background:var(--panel);border:1px solid var(--border);color:var(--muted);padding:8px 18px;border-radius:10px;cursor:pointer;font-size:14px}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}.upload-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:14px}.hint,.hint-inline{color:var(--muted);font-size:13px}.hint{margin:4px 0 10px}.brush-control{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.dropzone{border:2px dashed var(--border);border-radius:12px;padding:50px;text-align:center;color:var(--muted)}.mask-stage{position:relative;display:inline-block;max-width:100%;border-radius:12px;overflow:hidden;line-height:0}.mask-base{max-width:100%;max-height:60vh;display:block}.mask-draw{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;cursor:crosshair;touch-action:none}.brush-cursor{position:absolute;border:1.5px solid #ef4444;border-radius:50%;transform:translate(-50%,-50%);pointer-events:none;box-shadow:0 0 0 1px #00000059;z-index:2}.brush-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:10px;padding:8px 10px;background:var(--panel-2);border:1px solid var(--border);border-radius:10px}.tool-group{display:flex;align-items:center;gap:6px}.tool-btn{display:inline-flex;align-items:center;gap:4px;padding:6px 10px;font-size:13px;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all .15s ease;-webkit-user-select:none;user-select:none}.tool-btn:hover:not(:disabled){border-color:var(--primary)}.tool-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.tool-btn:disabled{opacity:.4;cursor:not-allowed}.prompt-input{width:100%;margin-top:14px;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;color:var(--text);padding:10px 12px;font-size:14px;resize:vertical}.btn{border:none;border-radius:10px;padding:9px 18px;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:6px}.btn-primary{background:var(--primary);color:#fff;margin-top:14px}.btn-primary:hover{background:var(--primary-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-outline{background:var(--panel-2);color:var(--text);border:1px solid var(--border)}.btn-small{padding:5px 12px;font-size:12px;background:var(--panel-2);color:var(--text);border:1px solid var(--border)}.btn-link{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px}.error-text{color:var(--danger);font-size:13px;margin:10px 0 0}.pic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}.pic-cell{position:relative;border-radius:10px;overflow:hidden;border:1px solid var(--border)}.pic-cell img{width:100%;height:110px;object-fit:cover;display:block}.pic-remove{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;border:none;background:#0009;color:#fff;cursor:pointer;line-height:1}.result-empty{margin-top:18px;text-align:center;color:var(--muted);padding:40px;border:1px solid var(--border);border-radius:14px}.result-area{margin-top:18px}.compare-block{margin-bottom:16px}.compare-label{font-size:13px;color:var(--muted);display:block;margin-bottom:8px}.thumb-row{display:flex;gap:12px;flex-wrap:wrap}.result-thumb{max-height:140px;border-radius:10px;border:1px solid var(--border)}.result-item{display:flex;flex-direction:column;gap:8px;align-items:center}.result-img{max-height:320px;max-width:100%;border-radius:12px;border:1px solid var(--border)}.history{width:260px;flex-shrink:0;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:14px;height:fit-content}.history-head{display:flex;justify-content:space-between;align-items:center;font-size:14px;margin-bottom:10px}.history-empty{color:var(--muted);font-size:13px}.history-list{display:flex;flex-direction:column;gap:8px;max-height:70vh;overflow-y:auto}.history-card{display:flex;gap:10px;align-items:center;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:8px;cursor:pointer;text-align:left}.history-thumb{width:44px;height:44px;object-fit:cover;border-radius:8px;flex-shrink:0}.history-meta{min-width:0}.history-mode{display:block;font-size:12px;color:var(--primary)}.history-prompt{display:block;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:170px}.spinner{width:30px;height:30px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;margin:0 auto 12px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 900px){.body{flex-direction:column}.history{width:100%}}