:root{--paper:#f7f6f2;--cream:#eeeae1;--ink:#3f2b20;--muted:#857c71;--line:#dfdbd2;--accent:#9b5b43;--green:#49604c;--red:#a34332;--white:#fffefa}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.6 "Microsoft YaHei","PingFang SC",Arial,sans-serif}button,input,textarea,select{font:inherit}button,a,input,select,textarea{outline-offset:4px}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h2{font-size:26px;font-weight:500;letter-spacing:.02em}h3{font-size:15px;font-weight:600}small{font-size:11px}.muted,.hint{color:var(--muted)}.hint{font-size:12px;line-height:1.8;margin:10px 0}.eyebrow,.letter-space{font-size:10px;letter-spacing:.16em}.eyebrow{color:var(--accent);margin-bottom:10px}.wordmark{font-family:Georgia,"Times New Roman",serif;letter-spacing:.15em;font-size:27px;font-weight:400;line-height:1.2}.primary,.secondary{border:1px solid 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