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16px rgba(0, 0, 0, .05);--shadow-float: 0 8px 24px rgba(0, 0, 0, .12);--shadow-brand: 0 4px 14px rgba(22, 119, 255, .28)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:64px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Inter,sans-serif;color:var(--text-primary);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:none}img{max-width:100%;display:block}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}