:root{--color-primary: #b00000;--color-nav-bg: #a00000;--color-text: #1a1a1a;--color-muted: #888;--color-border: #e8e8e8;--font-sans: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;--site-gutter: 20px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body{margin:0;padding:0;font-family:var(--font-sans);color:var(--color-text);background:#fff}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;vertical-align:middle}.site-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--site-gutter);padding-left:max(var(--site-gutter),env(safe-area-inset-left,0px));padding-right:max(var(--site-gutter),env(safe-area-inset-right,0px))}@media (max-width: 900px){:root{--site-gutter: 16px}}@media (max-width: 480px){:root{--site-gutter: 14px}}@media (min-width: 1240px){.site-inner{padding-left:0;padding-right:0}}