:root{--bg: #08080d;--bg-elev: #0f0f17;--text: #ececf1;--muted: #9b9ba6;--faint: #63636e;--line: rgba(255, 255, 255, .08);--line-strong: rgba(255, 255, 255, .16);--accent: #818cf8;--accent-dim: rgba(129, 140, 248, .12);--sans: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;--maxw: 1120px;--radius: 12px}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;background:radial-gradient(ellipse 90% 55% at 50% -12%,rgba(129,140,248,.09),transparent),var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid 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