:root{--bg: #0b0e17;--bg-soft: #121627;--card: #161b2e;--card-hover: #1c2340;--border: rgba(255, 255, 255, .08);--text: #eef1f8;--text-dim: #9aa3bd;--text-faint: #646d88;--brand: #7c6cf4;--brand-2: #4cc9f0;--radius: 18px;--max-w: 1160px}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Segoe UI,PingFang SC,Microsoft YaHei,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:#0b0e17b8;border-bottom:1px solid 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