.app{box-sizing:border-box;flex-direction:column;height:100vh;font-family:sans-serif;display:flex;overflow:hidden}.top-toolbar{background:#fff;border-bottom:1px solid #e8e8e8;flex-shrink:0;align-items:center;gap:8px;height:48px;padding:0 12px;display:flex}.top-toolbar .tool-group{align-items:center;gap:4px;display:flex}.top-toolbar .divider{background:#e8e8e8;width:1px;height:24px;margin:0 8px}.top-toolbar .upload-btn{cursor:pointer;color:#fff;background-color:#1890ff;border:none;border-radius:4px;padding:4px 12px;font-size:13px;line-height:22px}.top-toolbar .upload-btn:hover{background-color:#40a9ff}.top-toolbar .spacer{flex:1}.main-body{flex:1;display:flex;overflow:hidden}.left-panel{background:#fff;border-right:1px solid #e8e8e8;flex-direction:column;flex-shrink:0;width:260px;display:flex;overflow:hidden}.left-panel .panel-header{border-bottom:1px solid #f0f0f0;flex-shrink:0;justify-content:space-between;align-items:center;padding:10px 12px;font-size:13px;font-weight:600;display:flex}.left-panel .panel-body{flex:1;padding:8px;overflow-y:auto}.canvas-area{background:#e8e8e8;flex:1;justify-content:center;align-items:center;display:flex;position:relative;overflow:auto}.canvas-wrapper{box-shadow:0 2px 12px #00000026}.right-panel{background:#fff;border-left:1px solid #e8e8e8;flex-direction:column;flex-shrink:0;width:260px;display:flex;overflow:hidden}.right-panel .panel-header{border-bottom:1px solid #f0f0f0;flex-shrink:0;padding:10px 12px;font-size:13px;font-weight:600}.right-panel .panel-body{flex:1;padding:12px;overflow-y:auto}.status-bar{color:#888;background:#fafafa;border-top:1px solid #e8e8e8;flex-shrink:0;align-items:center;gap:16px;height:28px;padding:0 12px;font-size:12px;display:flex}:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;@media (width<=1024px){font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{text-align:left;box-sizing:border-box;flex-direction:column;width:100%;height:100vh;margin:0;display:flex;overflow:hidden}body{margin:0}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px;@media (width<=1024px){margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%;@media (width<=1024px){font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}