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:root{--bg:#080c1d;--panel:#11172d;--line:rgba(167,182,231,.14);--muted:#9ba7c4;--white:#f4f6ff;--purple:#a185ff;--cyan:#65dfff;--gradient:linear-gradient(110deg,#a183ff,#709bff 52%,#54ddf5)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--white);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:6px}button.download{cursor:default;transition:none}button.download:active{transform:none}button.download:hover{filter:none}.container{width:min(1180px,calc(100% - 80px));margin:auto}.site-header{height:88px;border-bottom:1px solid 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