:root{--color-bg: #ffffff;--color-bg-secondary: #f5f5f7;--color-primary: #800020;--color-primary-hover: #660019;--color-primary-soft: rgba(128, 0, 32, .1);--color-text: #1d1d1f;--color-text-secondary: #6e6e73;--color-border: #d2d2d7;--color-success: #1e7d3c;--color-danger: #c0392b;--color-warning: #b8860b;--font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", sans-serif;--radius-card: 12px;--radius-control: 8px;--shadow-card: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font-family);background:var(--color-bg-secondary);color:var(--color-text);-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-weight:600;letter-spacing:-.01em;margin:0 0 8px}a{color:var(--color-primary)}.app-shell{display:flex;height:100vh;overflow:hidden}.mobile-menu-btn{display:none;width:36px;height:36px;border-radius:var(--radius-control);border:1px solid 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