:root{--ink:#20313c;--muted:#677983;--nav:#173745;--paper:#f2f6f7;--line:#dbe5e9;--teal:#126b77;--accent:#ecac4a;--white:#fff}*{box-sizing:border-box}body{margin:0;font-family:'Segoe UI','Microsoft YaHei',sans-serif;color:var(--ink);background:var(--paper);font-size:14px;line-height:1.65}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,a.primary{cursor:pointer}button,.primary{border:1px solid #bccfd5;background:#fff;padding:9px 16px;border-radius:7px;color:var(--ink);display:inline-block}.primary{background:var(--teal);color:white;border-color:var(--teal);font-weight:600;white-space:nowrap}.primary:hover{background:#0c5964;text-decoration:none}input,textarea,select{padding:10px 12px;border:1px solid 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