:root{--ink:#182c35;--green:#087347;--dark:#103e31;--muted:#576b70;--line:#d9e2dd;--paper:#f4f7f4;--white:#fff;--gutter:5vw;--radius:3px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:"Helvetica Neue",Helvetica,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.6}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:5px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1,h2{font-weight:500;letter-spacing:-.035em;line-height:1.13}h1{font-family:Georgia,"Songti SC",serif;font-size:clamp(40px,4.6vw,78px)}h2{font-size:clamp(27px,2.5vw,40px)}h3{font-size:21px;line-height:1.3}p{color:var(--muted)}em{font-weight:400;color:var(--green)}:focus-visible{outline:3px solid #cfad34;outline-offset:4px}.site-header{padding:22px 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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}