:root{--app-bg:#e7ece8;--stage-bg:#f4f6f2;--panel:#fbfaf6;--control:#fff;--control-hover:#f1f5ef;--grid-line:#30463c14;--line:#d9ddd5;--line-strong:#aeb9ad;--ink:#242821;--muted:#687164;--accent:#2f765f;--accent-strong:#205845;--warn:#9b5c3d;color:var(--ink);background:var(--app-bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:ui-sans-serif,Avenir Next,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root{min-width:320px;min-height:100%;margin:0}body{min-height:100svh}button,input,select{letter-spacing:0}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid color-mix(in srgb, var(--accent) 70%, white);outline-offset:2px}.workspace-shell{background:var(--app-bg);min-height:100svh;color:var(--ink);grid-template-rows:72px minmax(0,1fr);display:grid}.topbar{border-bottom:1px solid var(--line);background:var(--panel);justify-content:space-between;align-items:center;gap:20px;padding:12px 18px;display:flex}.brand{align-items:center;gap:12px;min-width:246px;display:flex}.brand svg{width:30px;height:30px;color:var(--accent)}.brand h1{margin:0;font-size:18px;font-weight:720;line-height:1.1}.brand p{color:var(--muted);margin:3px 0 0;font-size:12px}.toolbar{justify-content:flex-end;align-items:center;gap:8px;min-width:0;display:flex}.toolbar-divider{background:var(--line);width:1px;height:28px;margin:0 2px}.tool-button,.inline-action,.toolbar select,.segmented button,.book-row{border:1px solid var(--line);background:var(--control);min-height:34px;color:var(--ink);font:inherit;border-radius:6px}.tool-button{cursor:pointer;justify-content:center;align-items:center;gap:7px;padding:0 11px;display:inline-flex}.inline-action{cursor:pointer;justify-content:center;align-items:center;gap:7px;width:100%;margin:2px 0 8px;display:inline-flex}.tool-button svg,.inline-action 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318px;min-height:0;display:grid}.panel{background:var(--panel);min-height:0;padding:16px;overflow:auto}.left-panel{border-right:1px solid var(--line)}.right-panel{border-left:1px solid var(--line)}.section-title{margin:4px 0 12px}.section-title small,.field-grid legend{color:var(--muted);text-transform:uppercase;font-size:11px}.section-title h2{margin:2px 0 0;font-size:18px;line-height:1.15}.panel-section{border-bottom:1px solid var(--line);margin-bottom:10px;padding:0 0 10px}.panel-section summary{cursor:pointer;grid-template-columns:1fr auto;align-items:center;gap:8px;min-height:42px;list-style:none;display:grid}.panel-section summary::-webkit-details-marker{display:none}.panel-section summary:after{content:"＋";color:var(--muted);font-size:16px}.panel-section[open] summary:after{content:"－"}.panel-section summary span{color:var(--muted);text-transform:uppercase;grid-column:1;font-size:11px;line-height:1}.panel-section summary 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minmax(0,1fr)}.topbar{flex-direction:column;align-items:flex-start}.toolbar{flex-wrap:wrap;justify-content:flex-start;width:100%}.studio-grid{grid-template-columns:246px minmax(360px,1fr)}.right-panel{border-left:0;border-top:1px solid var(--line);grid-column:1/-1;max-height:280px}}@media (width<=720px){.studio-grid{grid-template-rows:auto minmax(420px,58svh) auto;grid-template-columns:1fr}.left-panel,.right-panel{border-inline:0}.left-panel{border-bottom:1px solid var(--line)}.tool-button span{display:none}}