:root{--background:#f8faf7;--surface:#ffffff;--surface-strong:#f0f4f1;--border:#d9e2dd;--text:#17201c;--muted:#66746d;--soft:#eff6f2;--accent:#0f766e;--accent-strong:#115e59;--danger:#b42318;--shadow:0 18px 50px rgba(21,35,30,0.09)}*{box-sizing:border-box}html{background:var(--background);color:var(--text)}body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif;letter-spacing:0}button,input,select{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}.app-shell{margin:0 auto;max-width:1180px;min-height:100vh;padding:24px}.app-header{align-items:center;display:flex;gap:20px;justify-content:space-between;margin-bottom:18px}.app-header h1,.login-shell h1,.section-heading h2{margin:0}.app-header h1{font-size:32px;line-height:1.1}.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:0;margin:0 0 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