:root{--bg: #1b1c1f;--panel: #24262a;--panel-2: #2c2e33;--border: #3a3d43;--text: #e8e8e8;--text-dim: #9aa0a8;--accent: #f08c2e;--accent-soft: rgba(240, 140, 46, .15);--danger: #e8590c;--radius: 8px}*{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:Segoe UI,system-ui,sans-serif;font-size:13px;background:var(--bg);color:var(--text);overflow:hidden}.hidden{display:none!important}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:20px;padding:8px 16px;background:var(--panel);border-bottom:1px solid var(--border);flex-shrink:0}.brand{display:flex;flex-direction:column;line-height:1.15}.brand strong{font-size:15px;letter-spacing:.4px}.brand span{font-size:11px;color:var(--text-dim)}.tabs{display:flex;gap:6px}.pagenav{display:flex;align-items:center;gap:8px;margin-left:auto}.page-label{min-width:200px;text-align:center;color:var(--text-dim)}.actions{display:flex;gap:8px}.body{flex:1;display:flex;min-height:0}.cards-panel{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:12px;display:flex;flex-direction:column;gap:10px;overflow-y:auto}.card-list{display:flex;flex-direction:column;gap:6px}.card-item{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer}.card-item:hover{border-color:var(--accent)}.card-item.active{border-color:var(--accent);background:var(--accent-soft)}.card-name{font-weight:600}.card-side{font-size:10px;color:var(--text-dim)}.card-actions{display:flex;gap:4px;margin-left:auto}.canvas-area{flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;padding:20px;background:radial-gradient(circle at 30% 20%,rgba(240,140,46,.04),transparent 50%),var(--bg)}#editorCanvas{width:276px;height:460px;background:#fff;border-radius:4px;box-shadow:0 6px 32px #0000008c;cursor:default;touch-action:none}.props-panel{width:300px;background:var(--panel);border-left:1px solid var(--border);padding:12px;display:flex;flex-direction:column;gap:10px;overflow-y:auto}.panel-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.8px;color:var(--text-dim);margin-top:4px}.btn{background:var(--panel-2);color:var(--text);border:1px solid 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var(--border);border-radius:4px;overflow:hidden}.progress-fill{height:100%;width:0%;background:var(--accent);transition:width .15s ease}.progress-label{font-size:11px;color:var(--text-dim)}.eink-overlay{position:fixed;inset:0;background:#0a0a0cbf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100}.eink-box{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;box-shadow:0 12px 48px #0009}.eink-head{display:flex;align-items:center;justify-content:space-between;gap:24px;font-weight:600}.eink-head .close{font-size:18px;padding:2px 10px}#einkCanvas{width:324px;height:540px;border-radius:4px;box-shadow:0 4px 20px 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var(--accent)}.json-foot{display:flex;flex-direction:column;gap:8px;padding:10px 14px;padding-bottom:max(10px,env(safe-area-inset-bottom));border-top:1px solid var(--border);flex-shrink:0;background:var(--panel)}.json-foot .export-buttons{flex-wrap:wrap}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}::-webkit-scrollbar-track{background:transparent}.mobile-view{display:none}#mobileCanvas{width:100%;max-width:340px;aspect-ratio:480 / 800;height:auto;background:#fff;border-radius:4px;box-shadow:0 6px 32px #0000008c}.mobile-preview-wrap{display:flex;justify-content:center}.mobile-pagebar{display:flex;align-items:center;justify-content:center;gap:10px}.mobile-page-label{color:var(--text-dim);font-size:12px}.mobile-tabs{display:flex;gap:8px}.mobile-tabs .btn{flex:1}.mobile-actions{display:flex;flex-direction:column;gap:8px}.mobile-actions 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.canvas-area{display:none!important}.body{display:block}.mobile-view{display:flex;flex-direction:column;gap:10px;padding:12px;min-height:100%;overflow-y:auto}}