:root{--bg:#ffffff;--bg-soft:#f6f8fa;--panel:#ffffff;--border:#d8dee4;--text:#1f2328;--muted:#59636e;--faint:#818b96;--accent:#0969da;--accent2:#218bff;--accent3:#8250df;--good:#1a7f37;--warn:#bf8700;--danger:#cf222e;--cyan:#0a7ea4;--soft:#0969da14;--shadow:0 1px 3px rgba(27,31,36,.08), 0 8px 24px -12px rgba(27,31,36,.12);--shadow-lg:0 24px 60px -20px rgba(9,105,218,.25);--radius:14px;--maxw:1120px;--grad:linear-gradient(95deg,var(--accent),var(--accent3));--grad-soft:linear-gradient(135deg,#0969da10,#8250df10)}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 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