:root{--bg:#f5f7fb;--surface:#fff;--ink:#172b45;--muted:#54657a;--blue:#1261d8;--blue-light:#eaf2ff;--line:#dce4ee;--green:#147354;--green-light:#e7f5ee;--warn:#975b05;--warn-light:#fff4df;--danger:#b42c3d;--radius:12px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 -apple-system,BlinkMacSystemFont,'Segoe UI',Tahoma,sans-serif}a{color:var(--blue)}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:9px 16px;border:1px solid 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