:root{--ink: #0a3142;--ink-deep: #062f40;--ink-darkest: #071f31;--brand: #1594ae;--brand-dark: #056b82;--mist: #f3f8fa;--line: #dbe7ea;--line-strong: #bfd1d7;--muted: #607985;--ok: #17866f;--hint: #93abb4}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:#fff;color:var(--ink);font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;font-synthesis:none}a{color:inherit;text-decoration:none}a:hover{color:var(--brand-dark)}button,input,select{font:inherit}::selection{background:var(--brand);color:#fff}::-webkit-scrollbar{width:9px;height:9px}::-webkit-scrollbar-thumb{background:#cedce1;border-radius:5px}.page{width:100%;background:#fff;overflow-x:hidden}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.site-header{position:sticky;top:0;z-index:50;background:#fffffff7;border-bottom:1px solid rgba(10,49,66,.08);padding:0 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