:root{--ink:#202c45;--muted:#8b94a6;--blue:#4f65df;--blue-dark:#3b51ca;--light:#eef1ff;--line:#e9edf4;--bg:#f5f7fb;--green:#25886c;--radius:20px;font-family:Arial,'Microsoft YaHei','PingFang SC',sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:var(--bg);-webkit-font-smoothing:antialiased}button,input,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;border:0;background:none;color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #9aa9ff;outline-offset:4px}svg{display:block;width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin:0}button:disabled{cursor:wait;opacity:.6}.shell{max-width:560px;margin:auto;min-height:100dvh;padding:0 24px 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