:root{--ink: #161512;--paper: #f4efe3;--paper-deep: #e1d4bb;--panel: #fffaf0;--muted: #746b5a;--signal-green: #18a06c;--pitch-green: #256f4f;--amber: #d28a15;--danger: #b13c2e;--line-soft: rgba(22, 21, 18, .16);--shadow: 0 18px 60px rgba(22, 21, 18, .16);color:var(--ink);background:var(--paper);font-family:Avenir Next,Trebuchet MS,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(90deg,rgba(22,21,18,.06) 1px,transparent 1px),linear-gradient(rgba(22,21,18,.05) 1px,transparent 1px),var(--paper);background-size:32px 32px}button,input,select,textarea{font:inherit}button{min-height:42px;border:2px solid var(--ink);border-radius:6px;padding:0 16px;color:var(--paper);background:var(--ink);cursor:pointer;transition:transform .14s ease,box-shadow .14s ease,background .14s ease,color .14s ease}button:hover,button:focus-visible{transform:translateY(-1px);box-shadow:4px 4px 0 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