:root{--bg: #14141f;--panel: #1e1e2e;--panel-2: #262638;--border: #34344a;--text: #e8e8f0;--muted: #9a9ab0;--accent: #e94560;--accent-2: #f2768c}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Hiragino Sans,Yu Gothic UI,system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent}.pointer-coarse-only{display:none}@media (pointer: coarse){.pointer-fine-only{display:none}.pointer-coarse-only{display:inline}}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:transparent;height:32px;margin:0;cursor:pointer;touch-action:manipulation}input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:3px;background:var(--border)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--accent);border:none;margin-top:-8px}input[type=range]::-moz-range-track{height:6px;border-radius:3px;background:var(--border)}input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--accent);border:none}input[type=checkbox],input[type=radio]{width:18px;height:18px;accent-color:var(--accent)}.app{max-width:1200px;margin:0 auto;padding:24px 20px 60px}.app-header{text-align:center;margin-bottom:28px}.app-header h1{font-size:34px;margin:0;letter-spacing:1px}.logo-mark{color:var(--accent)}.tagline{color:var(--muted);margin:6px 0 0;font-size:15px}.stage{display:grid;gap:28px}.uploader{border:2px dashed var(--border);border-radius:16px;padding:56px 24px;text-align:center;cursor:pointer;background:var(--panel);transition:border-color .15s,background .15s}.uploader:hover,.uploader.dragover{border-color:var(--accent);background:var(--panel-2)}.uploader-icon{font-size:48px}.uploader-title{font-size:20px;margin:12px 0 4px;font-weight:600}.uploader-sub{color:var(--muted);margin:0 0 16px}.uploader-note{color:var(--muted);font-size:13px;margin:0}.intro{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:20px 24px}.intro h2{margin-top:0}.intro ol{line-height:1.9;color:var(--text)}.privacy{color:var(--muted);font-size:14px;margin-bottom:0}.feature-list{margin:0;padding-left:20px;line-height:1.9}.feature-list li{margin-bottom:6px}.feature-list strong{color:var(--accent-2)}.faq-list{margin:0}.faq-list dt{font-weight:600;margin-top:14px}.faq-list dt:first-child{margin-top:0}.faq-list dd{margin:6px 0 0;color:var(--muted);line-height:1.7}.editor{display:grid;grid-template-columns:1fr 360px;gap:24px;align-items:start}@media (max-width: 900px){.editor{grid-template-columns:1fr}}.crop-stage{position:relative;width:100%;aspect-ratio:1 / 1;background:#000;border-radius:12px;overflow:hidden}.crop-stage .reactEasyCrop_CropArea{background-image:linear-gradient(to right,rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.6) 1px,transparent 1px);background-size:calc(100% / var(--cols, 3)) calc(100% / var(--rows, 3))}.zoom-row{display:flex;align-items:center;gap:12px;margin:14px 0 8px;color:var(--muted);font-size:14px}.zoom-row input{flex:1}.zoom-val{width:44px;text-align:right;font-variant-numeric:tabular-nums}.preview-wrap{margin-top:16px}.preview-canvas-box{position:relative;display:inline-block;max-width:100%}.preview-canvas{display:block;max-width:100%;height:auto;border-radius:8px;background:#0a0a12}.preview-labels{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;pointer-events:none}.preview-label-cell{display:flex;align-items:center;justify-content:center}.preview-num{background:#14141fc7;color:#fff;font-weight:700;font-size:18px;min-width:30px;height:30px;padding:0 6px;border-radius:8px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.25)}.preview-hint{color:var(--muted);font-size:13px;margin-top:10px;line-height:1.6}.editor-right{display:flex;flex-direction:column;gap:16px}.control-group{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px 18px}.control-group h3{margin:0 0 14px;font-size:15px}.preset-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}.preset-btn{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:9px 8px;border-radius:8px;cursor:pointer;font-size:13px;transition:.12s;min-height:40px;touch-action:manipulation}.preset-btn:hover{border-color:var(--accent-2)}.preset-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.custom-row{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted)}.custom-row label{display:flex;align-items:center;gap:6px}.custom-row input{width:56px;background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:6px;font-size:14px}.times{font-weight:700}.tile-count{margin-left:auto;color:var(--accent-2);font-weight:600}.slider-row,.color-row,.check-row{display:flex;align-items:center;gap:10px;margin:10px 0;font-size:14px}.slider-row span:first-child,.color-row span:first-child{width:78px;color:var(--muted)}.slider-row input[type=range]{flex:1}.slider-row .val,.color-row .val{width:56px;text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}.color-row input[type=color]{width:42px;height:28px;border:1px solid var(--border);border-radius:6px;background:none;cursor:pointer}.check-row{cursor:pointer}.btn{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:11px 14px;border-radius:9px;cursor:pointer;font-size:14px;transition:.12s;min-height:44px;touch-action:manipulation}.btn:hover:not(:disabled){border-color:var(--accent-2)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn.primary:hover:not(:disabled){background:var(--accent-2);border-color:var(--accent-2)}.btn.ghost{background:none;border:none;color:var(--muted);padding:4px 0;text-align:left}.btn.ghost:hover{color:var(--text)}.format-row{display:flex;align-items:center;gap:12px;margin:10px 0;font-size:14px}.format-label{color:var(--muted)}.format-option{display:flex;align-items:center;gap:5px;cursor:pointer}.export-buttons{display:flex;flex-direction:column;gap:10px;margin-top:12px}.app-footer{text-align:center;color:var(--muted);font-size:13px;margin-top:40px;padding-top:20px;border-top:1px solid var(--border)}@media (max-width: 640px){.app{padding:14px 12px calc(36px + env(safe-area-inset-bottom))}.app-header{margin-bottom:16px}.app-header h1{font-size:26px}.tagline{font-size:13px;padding:0 8px}.stage{gap:16px}.uploader{padding:32px 16px;border-radius:12px}.uploader-icon{font-size:40px}.uploader-title{font-size:17px}.uploader-sub{font-size:13px}.intro{padding:16px;border-radius:12px}.intro h2{font-size:17px}.intro ol,.feature-list{padding-left:18px;font-size:14px}.editor{gap:14px}.control-group{padding:14px}.custom-row input{font-size:16px;width:64px;padding:8px 6px}.zoom-row{margin:10px 0 6px}.preview-num{min-width:26px;height:26px;font-size:14px}.preview-hint{font-size:12px}.format-row{flex-wrap:wrap;row-gap:6px}.app-footer{font-size:12px;margin-top:28px}}