:root{--ink:#202522;--muted:#717873;--line:#e3e7e3;--surface:#ffffff;--canvas:#f5f7f4;--green:#176b4d;--green-dark:#0f5139;--red:#b43d3d;--warm:#f0e9dc}*{box-sizing:border-box}body,html{min-height:100%}body{margin:0;background:var(--canvas);color:var(--ink);font-family:Arial,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}h1,h2,h3,p{margin:0}input,textarea{width:100%;border:1px solid #d5dbd6;border-radius:6px;padding:10px 11px;color:var(--ink);background:#fff;outline:none}input:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px #e1f0e7}textarea{resize:vertical}