:root{--fog:#f4f6fb;--ink:#18213d;--blue:#425deb;--sky:#e1e8ff;--coral:#ff875f;--white:#fff;--muted:#65708a;--line:#dfe4ef;--radius:18px;color:var(--ink);background:var(--fog);font-synthesis:none;font-family:Microsoft YaHei UI,PingFang SC,system-ui,sans-serif;line-height:1.6}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}a,button,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button{color:inherit}input,select,textarea{border:1px solid var(--line);background:var(--white);min-width:0;color:var(--ink);border-radius:9px;outline:none;padding:11px 13px}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #425deb18}input[type=checkbox]{accent-color:var(--blue);width:16px;height:16px}textarea{resize:vertical}a:focus-visible,button:focus-visible{outline:3px solid 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