:root{--ink: #172126;--ink-soft: #526168;--muted: #77858b;--line: #dfe6e8;--canvas: #f4f7f8;--surface: #fff;--accent: #146b68;--accent-strong: #0c514f;--success: #176b4c;--success-bg: #eaf6f0;--error: #a33e38;--error-bg: #fff0ef;--info-bg: #edf5f6}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--canvas);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}.page-shell{width:min(920px,calc(100% - 36px));margin:0 auto;padding:36px 0 32px}.flow-header,.task-panel,.lookup-panel{border:1px solid var(--line);border-radius:8px;background:var(--surface)}.flow-header{padding:25px 28px 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