:root{--bg:#05070d;--bg-soft:#0a0f1b;--line:rgba(255,255,255,0.09);--line-strong:rgba(255,255,255,0.16);--ink:#e9eef8;--ink-dim:#9aa7bd;--ink-faint:#6b7891;--mint:#3ee0c0;--violet:#8b7bff;--coral:#ff8a5c;--amber:#ffcc66;--danger:#ff5d73;--radius:20px;--max:1180px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:inherit;text-decoration:none}.nav{position:-webkit-sticky;position:sticky;top:0;z-index:50;gap:18px;padding:14px clamp(18px,4vw,44px);background:rgba(5,7,13,.72);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);border-bottom:1px 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