:root{--bg:#f4f7f7;--surface:#fff;--ink:#152e35;--muted:#718489;--line:#e2e9e8;--teal:#087e75;--mint:#e3f3ed;--dark:#142e35;--red:#b4524b}*{box-sizing:border-box}body{margin:0;font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}[hidden]{display:none!important}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:3px}button,a{touch-action:manipulation}button{cursor:pointer;border:none;transition:background .15s}button:disabled{opacity:.45;cursor:not-allowed}a{color:var(--teal);text-decoration:none}input,select,textarea{width:100%;border:1px solid #d8e2e1;border-radius:7px;padding:9px 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