:root{--bg:#0e0b1b;--panel:#151126;--panel2:#1f1739;--line:#32294f;--text:#f8f6ff;--muted:#9b94b5;--violet:#5f28ff;--violet2:#9174ff;--acid:#c9ff55;--paper:#eeeaff;--ink:#171225}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}.topbar{position:sticky;z-index:20;top:0;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:76px;padding:0 4vw;border-bottom:1px solid var(--line);background:rgba(14,11,27,.9);backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.04em}.brand>span{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--violet);box-shadow:0 0 24px #5f28ff75}.brand small{color:var(--muted);font-weight:600}.topbar 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