:root{--paper:#f4f2eb;--ink:#292a28;--muted:#73736c;--green:#345d46;--orange:#c57942;--line:#dcdad1;--red:#ae4534}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{background:var(--paper);color:var(--ink);margin:0;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif}button,select{font:inherit;color:inherit}button{cursor:pointer}button,a,select{touch-action:manipulation}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--green);outline-offset:4px}svg{display:block}.svg-library{width:0;height:0;position:absolute;overflow:hidden}[hidden]{display:none!important}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;margin:-1px;position:absolute;overflow:hidden}.topbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:16px;min-height:72px;padding:16px 4vw;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand 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