:root{--bg:#05040a;--card:#10101d;--line:rgba(255,214,117,.22);--gold:#ffd86e;--purple:#9b5cff;--cyan:#72f5ff;--text:#f7f3ff;--muted:#bdb4d8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 16% 8%,rgba(155,92,255,.26),transparent 30%),radial-gradient(circle at 82% 14%,rgba(255,216,110,.18),transparent 30%),linear-gradient(180deg,#05040a,#090817 46%,#05040a);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(1180px,92vw);margin:auto}.topbar{position:sticky;top:0;z-index:50;background:rgba(5,4,10,.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:16px 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