:root{--brand:#5d5fef;--brand2:#7c3aed;--ink:#172033;--muted:#768196;--line:#e8ebf2;--surface:rgba(255,255,255,.84);--bg:#f7f8fc}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ink);background:var(--bg);font:14px/1.5 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}.glow{position:fixed;border-radius:50%;filter:blur(5px);pointer-events:none;z-index:-1;opacity:.7}.glow-one{width:460px;height:460px;top:-230px;right:-80px;background:radial-gradient(circle,rgba(124,58,237,.2),transparent 68%)}.glow-two{width:420px;height:420px;bottom:-260px;left:-120px;background:radial-gradient(circle,rgba(37,99,235,.16),transparent 68%)}.site-header{height:78px;padding:0 max(24px,calc((100% - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.76);border-bottom:1px solid 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