:root{--cheqi-blue: #1355ff;--cheqi-blue-dark: #0b3399;--cheqi-blue-pale: #eef3ff;--ink: #0f172a;--ink-soft: #64748b;--paper: #ffffff;--page-bg: #f4f7ff;--line: rgba(15, 23, 42, .09);--card-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 18px 42px -24px rgba(15, 23, 42, .28);--zig: 14px}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:radial-gradient(circle at 8% 6%,rgba(19,85,255,.17),transparent 27rem),radial-gradient(circle at 92% 18%,rgba(91,131,255,.12),transparent 25rem),linear-gradient(155deg,#fcfdff 0%,var(--page-bg) 55%,#eaf0ff 100%);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}.site-shell{isolation:isolate;min-height:100vh;overflow:hidden;position:relative}.site-header{-webkit-backdrop-filter:saturate(160%) blur(18px);backdrop-filter:saturate(160%) blur(18px);background:#fffc;border-bottom:1px solid 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