:root{--bg: #08090d;--bg-2: #0e1117;--panel: #12151d;--panel-2: #171b26;--border: rgba(255,255,255,.07);--border-strong: rgba(255,255,255,.14);--text: #e9edf5;--muted: #98a2b3;--muted-2: #6b7280;--accent: #22d3ee;--accent-2: #a78bfa;--grad: linear-gradient(120deg, #22d3ee, #60a5fa 50%, #a78bfa);--mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;--sans: Inter, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--maxw: 1080px;--radius: 16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;background-image:radial-gradient(1100px 560px at 82% -12%,rgba(34,211,238,.09),transparent 60%),radial-gradient(900px 520px at -8% 8%,rgba(167,139,250,.08),transparent 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