:root{--brand: #1577cc;--brand-strong: #125fa3;--brand-soft: #eaf3fc;--brand-border: #d6e6f7;--navy: #143a5e;--ink: #1f2d3d;--muted: #5a6b7b;--quiet: #8a99a8;--line: #e6ebf1;--line-strong: #d8e1ea;--panel: #ffffff;--wash: #f7f9fc;--bg: #f4f6f9;--ok: #1f9d6b;--ok-soft: #e6f5ee;--danger: #e0533c}*{box-sizing:border-box}html{scroll-padding-top:20px}body{margin:0;background:var(--bg);color:var(--ink);font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,textarea,select{font:inherit}button{border:0;background:none;cursor:pointer}textarea{resize:vertical}svg{width:1em;height:1em;display:block}@keyframes pop{0%{opacity:0;transform:translateY(10px) scale(.985)}to{opacity:1;transform:none}}@keyframes fadein{0%{opacity:0}to{opacity:1}}@keyframes slidein{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes 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