:root{--color-bg: #FFFFFF;--color-text: #1A1A1A;--color-text-secondary: #6B6B6B;--color-accent: #0A84FF;--color-accent-hover: #0066CC;--color-dark: #0F172A;--color-border: #E5E5E5;--radius: 12px;--max-width: 1200px;--section-padding: 96px 0;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);color:var(--color-text);background:var(--color-bg);line-height:1.6;font-weight:400;-webkit-font-smoothing:antialiased}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}#nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fffffff2;backdrop-filter:blur(12px);transition:all .3s ease;border-bottom:1px solid transparent}#nav.nav-scrolled{box-shadow:0 1px 12px #0000000f;border-bottom:1px solid var(--color-border)}.nav-container{max-width:var(--max-width);margin:0 auto;padding:16px 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p{color:var(--color-text-secondary);font-size:15px;line-height:1.7;margin-bottom:12px}.modal-body strong{color:var(--color-text)}