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*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:20px}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.7;-webkit-text-size-adjust:100%}a{color:inherit;text-decoration:none;transition:color .15s,border-color .15s,background-color .15s}a:hover{color:var(--accent)}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:5px}img,video{max-width:100%;height:auto}button{border:0}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}h1,h2,h3,a,p,li{overflow-wrap:break-word}button[hidden],[hidden]{display:none!important}.wrap{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.muted{color:var(--muted)}.skip-link{position:fixed;top:-70px;left:16px;z-index:100;background:var(--text);color:white;padding:10px 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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}