:root{color-scheme:light;--bg: #f5f7fb;--surface: #ffffff;--surface-2: #eef4ff;--ink: #12213a;--muted: #617087;--line: #d9e1ee;--blue: #1d6fd6;--blue-dark: #1557ad;--green: #138a72;--amber: #b26b00;--red: #b42318;--shadow: 0 18px 50px rgba(18, 33, 58, .09);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink)}a{color:inherit}button,input,select,textarea{font:inherit}.site-header{position:sticky;top:0;z-index:10;border-bottom:1px solid rgba(217,225,238,.8);background:#ffffffeb;backdrop-filter:blur(18px)}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;width:min(1180px,calc(100% - 32px));margin:0 auto;padding:16px 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