:root{--header-h: 38px;--sidebar-w: 200px;--sidebar-collapsed: 40px;--bg-app: #f4f4f7;--bg-panel: #ffffff;--border: #e1e4e8;--accent: #1890ff;--text-main: #2c3e50;--text-dim: #7f8c8d;--radius: 6px}.theme-dark{--bg-app: #1a1a1a;--bg-panel: #2d2d2d;--border: #404040;--text-main: #e0e0e0;--text-dim: #999}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:12px;overflow:hidden}.app-container{height:100vh;display:flex;flex-direction:column;background:var(--bg-app);color:var(--text-main)}.compact-header{height:var(--header-h);background:var(--bg-panel);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 10px;z-index:100}.h-left{display:flex;align-items:center;gap:8px}.logo-icon{color:var(--accent)}.logo-text{font-weight:700;letter-spacing:-.5px}.sync-status{font-size:10px;color:var(--text-dim);background:var(--bg-app);padding:2px 8px;border-radius:10px}.sync-status.saving{color:var(--accent)}.h-center{display:flex;align-items:center;gap:4px}.h-btn{height:28px;padding:0 8px;border:1px solid transparent;background:transparent;border-radius:var(--radius);cursor:pointer;display:flex;align-items:center;gap:4px;color:var(--text-main);font-size:11px}.h-btn:hover{background:var(--bg-app);border-color:var(--border)}.h-btn.primary{background:var(--accent);color:#fff}.h-divider{width:1px;height:16px;background:var(--border);margin:0 4px}.workspace{flex:1;display:flex;overflow:hidden;position:relative}.side-bar{width:var(--sidebar-w);background:var(--bg-panel);border-right:1px solid var(--border);position:relative;transition:width .2s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}.side-bar.right{border-right:none;border-left:1px solid var(--border)}.side-bar.collapsed{width:var(--sidebar-collapsed)}.collapse-handle{position:absolute;top:50%;right:-8px;width:16px;height:32px;background:var(--bg-panel);border:1px solid var(--border);border-radius:4px;display:flex;align-items:center;justify-content:center;cursor:pointer;transform:translateY(-50%);z-index:10}.right .collapse-handle{right:auto;left:-8px}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:4px;padding:8px}.collapsed .tool-grid{grid-template-columns:1fr}.tool-btn{aspect-ratio:1;border-radius:var(--radius);border:1px solid transparent;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-dim);transition:.15s}.tool-btn:hover{background:var(--bg-app);color:var(--text-main)}.tool-btn.active{background:#e6f7ff;color:var(--accent);border-color:var(--accent)}.color-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:8px;border-top:1px solid var(--border)}.collapsed .color-grid{grid-template-columns:1fr}.color-dot{aspect-ratio:1;border-radius:50%;cursor:pointer;border:1px solid rgba(0,0,0,.1)}.color-dot.active{transform:scale(1.2);box-shadow:0 0 0 2px var(--bg-panel),0 0 0 3px var(--accent)}.canvas-area{flex:1;background:#dcdde1;overflow:auto;display:flex;align-items:center;justify-content:center;position:relative}.canvas-wrapper{background:#fff;box-shadow:0 4px 20px #0000001a}.main-svg{width:1000px;height:700px;cursor:crosshair;touch-action:none}.zoom-controls{position:absolute;bottom:12px;left:50%;transform:translate(-50%);background:#ffffffe6;padding:4px 12px;border-radius:20px;display:flex;align-items:center;gap:10px;box-shadow:0 2px 10px #0000001a;font-size:11px;font-weight:600}.zoom-controls button{background:none;border:none;cursor:pointer;padding:2px;opacity:.6}.panel-section{padding:10px;border-bottom:1px solid var(--border)}.section-title{font-size:11px;font-weight:700;color:var(--text-dim);margin-bottom:8px;display:flex;align-items:center;gap:6px}.control-row{display:flex;align-items:center;gap:8px;margin-bottom:6px}.control-row .label{width:30px;color:var(--text-dim);font-size:10px}.control-row input[type=range]{flex:1;height:4px;accent-color:var(--accent)}.control-row select{flex:1;font-size:11px;padding:2px;border-radius:4px;border:1px solid var(--border)}.layer-list{display:flex;flex-direction:column;gap:2px}.layer-item{padding:6px 8px;border-radius:4px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;background:transparent}.layer-item:hover{background:var(--bg-app)}.layer-item.active{background:#e6f7ff;color:var(--accent)}.l-name{font-size:11px;font-weight:500}.add-layer-btn{margin-left:auto;background:none;border:none;color:var(--accent);cursor:pointer;font-weight:700}