:root{--ink:#101820;--muted:#58626d;--line:#dce2e6;--paper:#f5f3ee;--white:#fff;--lime:#c8f15a;--blue:#1749ff;--navy:#0d1b2a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--paper);line-height:1.65}a{color:inherit;text-decoration:none}.nav-wrap{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(16,24,32,.1)}.nav{max-width:1180px;margin:auto;height:76px;display:flex;align-items:center;gap:42px;padding:0 24px}.brand{font-weight:850;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}.brand span{display:grid;place-items:center;width:32px;height:32px;background:var(--ink);color:var(--lime);border-radius:9px}.nav-links{display:flex;gap:30px;margin-left:auto;font-size:14px}.nav-links a:hover{color:var(--blue)}.nav-cta{background:var(--ink);color:#fff;padding:10px 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