:root{--bg:#f5f5f7;--panel:#fff;--border:#e2e2e6;--text:#2c2c30;--text-dim:#77777e;--accent:#e91e63;--accent-dim:#e91e631f;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:system-ui,PingFang SC,Microsoft YaHei,Segoe UI,sans-serif;font-size:14px;line-height:1.5}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;overflow:hidden}button{font:inherit;border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer;border-radius:8px;padding:6px 14px}button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}button:disabled{opacity:.45;cursor:not-allowed}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.welcome-page{place-items:center;height:100%;display:grid}.welcome-card{background:var(--panel);border:1px solid var(--border);text-align:center;border-radius:16px;padding:40px 48px;box-shadow:0 8px 30px #0000000f}.welcome-card h1{margin:0 0 8px;font-size:24px}.welcome-sub{color:var(--text-dim);margin:0 0 24px}.welcome-actions{flex-direction:column;gap:10px;min-width:260px;display:flex}.editor-page{flex-direction:column;height:100%;display:flex}.topbar{background:var(--panel);border-bottom:1px solid var(--border);align-items:center;gap:16px;padding:8px 12px;display:flex}.topbar-title{margin-right:auto;font-weight:600}.topbar-group{align-items:center;gap:8px;display:flex}.topbar button,.dialog-head button,.convert-actions button{justify-content:center;align-items:center;gap:5px;display:inline-flex}.topbar-group label{color:var(--text-dim);-webkit-user-select:none;user-select:none;align-items:center;gap:4px;display:flex}.zoom-label{text-align:right;min-width:48px;color:var(--text-dim);font-variant-numeric:tabular-nums}.editor-main{flex:1;min-height:0;display:flex}.toolbar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;gap:4px;padding:8px 6px;display:flex}.tool-btn{background:0 0;border:1px solid #0000;flex-direction:column;align-items:center;gap:2px;width:52px;padding:6px 2px;display:flex}.tool-btn.active{border-color:var(--accent);background:var(--accent-dim);color:var(--accent)}.tool-icon{justify-content:center;align-items:center;height:20px;display:flex}.tool-label{font-size:11px}.tool-option{color:var(--text-dim);border-top:1px solid var(--border);align-items:center;gap:4px;margin-top:4px;padding:6px 4px;font-size:11px;display:flex}.palette-panel{background:var(--panel);border-left:1px solid var(--border);flex-direction:column;width:264px;min-height:0;display:flex}.palette-switch{padding:8px 12px 0}.palette-switch select{border:1px solid var(--border);width:100%;font:inherit;background:var(--panel);border-radius:6px;padding:5px 8px}.palette-switch-note{color:var(--accent);margin-top:4px;font-size:11px}.welcome-palette{color:var(--text-dim);justify-content:space-between;align-items:center;gap:8px;font-size:13px;display:flex}.welcome-palette select{border:1px solid var(--border);font:inherit;background:var(--panel);border-radius:6px;padding:5px 8px}.palette-current{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:10px 12px;display:flex}.palette-current-code{font-size:16px;font-weight:700}.palette-current-name{color:var(--text-dim);font-size:12px}.swatch{cursor:pointer;border:1px solid #00000026;border-radius:5px;width:22px;height:22px;padding:0}.swatch.selected{outline:2px solid var(--accent);outline-offset:1px}.swatch-lg{border-radius:8px;width:36px;height:36px}.palette-recent{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:6px;padding:8px 12px;display:flex}.palette-controls{border-bottom:1px solid var(--border);flex-direction:column;gap:6px;padding:8px 12px;display:flex}.palette-controls input[type=text],.palette-controls input:not([type]){border:1px solid var(--border);width:100%;font:inherit;border-radius:6px;padding:5px 8px}.palette-filters{color:var(--text-dim);flex-wrap:wrap;gap:8px;font-size:12px;display:flex}.palette-filters label{-webkit-user-select:none;user-select:none;align-items:center;gap:3px;display:flex}.manage-owned{margin-left:auto}.palette-list{flex:1;padding:6px 10px 12px;overflow-y:auto}.palette-series{color:var(--text-dim);margin:8px 2px 4px;font-size:11px}.palette-grid{grid-template-columns:repeat(5,1fr);gap:4px;display:grid}.palette-item{background:0 0;border:1px solid #0000;border-radius:6px;padding:0;position:relative}.palette-item.selected{border-color:var(--accent)}.palette-chip{text-align:center;font-variant-numeric:tabular-nums;border:1px solid #0000001f;border-radius:5px;padding:12px 0 3px;font-size:10px;line-height:1;display:block}.palette-count{background:var(--accent);color:#fff;pointer-events:none;border-radius:999px;padding:2px 4px;font-size:9px;line-height:1;position:absolute;top:-4px;right:-2px}.owned-mark{color:var(--accent);pointer-events:none;font-size:11px;position:absolute;top:-2px;left:2px}.convert-page{grid-template-columns:300px 1fr 320px;height:100%;display:grid}.convert-params{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;gap:14px;padding:16px;display:flex;overflow-y:auto}.convert-params h2{margin:0;font-size:16px}.field{flex-direction:column;gap:6px;font-size:13px;display:flex}.field>span{color:var(--text-dim);justify-content:space-between;display:flex}.field em{font-variant-numeric:tabular-nums;font-style:normal}.field select,.field input[type=number]{border:1px solid var(--border);font:inherit;background:var(--panel);border-radius:6px;padding:5px 8px}.checkbox-field{flex-direction:row;align-items:center;gap:8px}.preset-row{flex-wrap:wrap;gap:6px;display:flex}.preset-row button{padding:4px 8px;font-size:12px}.preset-row button.active{border-color:var(--accent);color:var(--accent);background:var(--accent-dim)}.size-row{align-items:center;gap:8px;display:flex}.size-row input{width:72px}.hint{color:var(--text-dim);font-size:12px}.convert-actions{gap:8px;margin-top:auto;display:flex}.convert-actions .primary{flex:1}.convert-error{color:#c62828;font-size:13px}.convert-crop{background:#222;position:relative}.fit-whole{z-index:10;background:#ffffffeb;position:absolute;bottom:14px;left:50%;transform:translate(-50%)}.convert-preview{background:var(--panel);border-left:1px solid var(--border);flex-direction:column;gap:8px;min-height:0;padding:12px;display:flex}.preview-title{color:var(--text-dim);font-size:13px}.preview-canvas{width:100%;image-rendering:pixelated;border:1px solid var(--border);background:repeating-conic-gradient(#ececef 0% 25%,#f9f9fb 0% 50%) 0 0/12px 12px}.welcome-hint{color:var(--text-dim);margin:16px 0 0;font-size:12px}.welcome-credits{color:var(--text-dim);max-width:340px;margin:10px 0 0;font-size:11px}.welcome-credits a{color:inherit}.dialog-backdrop{z-index:100;background:#00000059;place-items:center;display:grid;position:fixed;inset:0}.dialog{background:var(--panel);border-radius:14px;width:min(620px,92vw);max-height:86vh;padding:18px 22px;overflow-y:auto;box-shadow:0 16px 50px #00000040}.dialog-head{justify-content:space-between;align-items:center;display:flex}.dialog-head h2{margin:0;font-size:18px}.dialog-section{border-top:1px solid var(--border);margin-top:12px;padding:12px 0}.dialog-section h3{margin:0 0 8px;font-size:14px}.dialog-row{flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;display:flex}.dialog-row label{color:var(--text-dim);align-items:center;gap:5px;display:flex}.dialog-row select{border:1px solid var(--border);font:inherit;border-radius:6px;padding:4px 6px}.share-url{margin-top:8px}.share-url input{border:1px solid var(--border);width:100%;color:var(--text-dim);border-radius:6px;padding:6px 8px;font-size:12px}.share-long .hint{color:#b26a00;margin-bottom:4px}.dialog-note{background:var(--accent-dim);border-radius:8px;margin-top:10px;padding:8px 10px;font-size:13px}.recent-list{text-align:left;flex-direction:column;gap:4px;max-height:260px;margin-top:20px;display:flex;overflow-y:auto}.recent-title{color:var(--text-dim);margin-bottom:2px;font-size:12px}.recent-info{cursor:help;margin-left:4px}.recent-item{align-items:stretch;gap:4px;min-height:44px;display:flex}.recent-main{text-align:left;flex:1;align-items:center;gap:10px;padding:4px 10px;font-size:13px;display:flex}.recent-thumb-box{background:repeating-conic-gradient(#ececef 0% 25%,#f9f9fb 0% 50%) 0 0/8px 8px;border-radius:4px;flex:none;justify-content:center;align-items:center;width:40px;height:40px;display:flex;overflow:hidden}.recent-thumb{width:auto;max-width:100%;height:auto;max-height:100%;image-rendering:pixelated}.recent-name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.recent-meta{color:var(--text-dim);flex:none;font-size:12px}.recent-delete{color:var(--text-dim);flex:none;align-items:center;padding:4px 10px;display:inline-flex}.recent-delete:hover{color:#c62828;border-color:#c62828}.recent-confirm{background:#c628280f;border:1px solid #c628284d;border-radius:8px;flex:1;align-items:center;gap:10px;padding:4px 10px;font-size:13px;display:flex}.recent-confirm span{flex:1}button.danger{color:#fff;background:#c62828;border-color:#c62828}.welcome-page{padding:24px 0;overflow-y:auto}.welcome-card{max-width:min(640px,92vw);margin:0 auto}.welcome-steps{font-size:12px}.welcome-secondary{gap:10px;display:flex}.welcome-secondary button{flex:1}.welcome-actions button,.welcome-secondary button{justify-content:center;align-items:center;gap:6px;display:inline-flex}@media (width<=480px){.welcome-secondary{flex-direction:column}}@media (width<=767px){.welcome-hint{display:none}}.topbar-title-btn{background:0 0;border:1px solid #0000;margin-right:0;padding:4px 8px}.topbar-title-btn:hover:not(:disabled){border-color:var(--border);color:var(--text)}.topbar-title-input{font:inherit;border:1px solid var(--accent);border-radius:8px;min-width:180px;padding:4px 8px;font-weight:600}.autosave-chip{color:var(--text-dim);min-width:70px;margin-right:auto;font-size:12px}.autosave-error{color:#c62828;font-weight:600}.statusbar-notice{color:var(--accent)}.dialog-narrow{width:min(440px,92vw)}.dialog-actions{justify-content:flex-end;gap:10px;margin-top:14px;display:flex}.dialog .field input{border:1px solid var(--border);font:inherit;border-radius:6px;padding:6px 8px}@media (width<=767px){.toolbar,.palette-panel{display:none}.topbar{flex-wrap:wrap;gap:8px}.convert-page{grid-template-rows:auto 300px auto;grid-template-columns:1fr;overflow-y:auto}}.canvas-host{touch-action:none;background:#ebebee;flex:1;position:relative;overflow:hidden}.canvas-host canvas{position:absolute;inset:0}.statusbar{background:var(--panel);border-top:1px solid var(--border);color:var(--text-dim);align-items:center;gap:24px;min-height:26px;padding:4px 12px;font-size:12px;display:flex}.statusbar-right{margin-left:auto}