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*{box-sizing:border-box}html{background:var(--navy);min-width:20rem}body{color:#fff;background:#020d19;min-height:100vh;margin:0;font-family:Noto Sans SC,Microsoft YaHei,system-ui,sans-serif}button,input,textarea{font-family:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline-offset:.25rem;outline:.2rem solid #fff}::selection{color:var(--ink);background:var(--cyan)}