:root{--bg:#020617;--panel:rgba(15,23,42,.92);--panel2:rgba(8,15,32,.86);--border:rgba(148,163,184,.34);--text:#e5edf7;--muted:#94a3b8;--primary:#38bdf8;--accent:#a855f7;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444;--radius:18px;--max:1180px;--shadow:0 28px 80px rgba(0,0,0,.46)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 50% -10%,#111d3b 0,#050b18 38%,#020617 72%,#000 100%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{color:inherit}.nebula,.stars{position:fixed;inset:0;pointer-events:none}.nebula{z-index:-2;background:radial-gradient(circle at 12% 15%,rgba(56,189,248,.2),transparent 34%),radial-gradient(circle at 88% 10%,rgba(168,85,247,.17),transparent 38%),radial-gradient(circle at 72% 80%,rgba(14,165,233,.1),transparent 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