:root{--bg:#f4f6f8;--panel:#fff;--border:#d7dde4;--fg:#1f2328;--muted:#5a6472;--accent:#1f6feb;--danger:#c23b34}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--fg);font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,system-ui,sans-serif;font-size:14px}.app{flex-direction:column;height:100%;display:flex}.app-nav{background:var(--panel);border-bottom:1px solid var(--border);flex:none;align-items:center;gap:18px;height:48px;padding:0 18px;display:flex}.app-brand{margin-right:8px;font-weight:700}.app-nav a{color:var(--muted);border-bottom:2px solid #0000;padding:4px 2px;text-decoration:none}.app-nav a.active{color:var(--fg);border-bottom-color:var(--accent)}main{flex:auto;min-height:0;overflow:auto}.page{max-width:1000px;margin:0 auto;padding:24px 20px 48px}.page-head{justify-content:space-between;align-items:center;gap:16px;display:flex}h1{margin:0 0 12px;font-size:20px}.lead{color:var(--muted);margin:0 0 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.field-format-bar{opacity:1}.format-controls{align-items:center;gap:3px;display:inline-flex}.format-name{color:var(--muted);font-size:10px}.format-bold{border:1px solid var(--border);background:var(--panel);color:var(--muted);border-radius:4px;padding:2px 6px;font-family:Georgia,Times New Roman,serif;font-size:12px;font-weight:700;line-height:1}.format-bold.is-on{background:var(--accent);border-color:var(--accent);color:#fff}.format-num{font:inherit;border:1px solid var(--border);background:var(--panel);width:46px;color:var(--fg);border-radius:4px;padding:1px 3px;font-size:11px}.column-head-tools{flex-wrap:wrap}.row-divider,.field-divider{cursor:col-resize;touch-action:none;background:0 0;width:11px;position:absolute;top:0;bottom:0}.row-divider{right:-6px}.field-divider{right:-12px}.row-divider:after,.field-divider:after{content:"";background:var(--border);opacity:0;width:1px;transition:opacity 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