body{margin:0;background:#f3f0e7;color:#293c32;font:16px/1.9 -apple-system,BlinkMacSystemFont,sans-serif}header,main,footer{max-width:760px;margin:auto;padding:24px}header{border-bottom:1px solid #d6d9cd;display:flex;justify-content:space-between}a{color:#8c3e2f}h1{font:clamp(30px,6vw,44px)/1.5 "Songti TC",serif}h2{font-size:23px;margin-top:36px}small{color:#687269}li{margin:10px 0}footer{border-top:1px solid #d6d9cd;margin-top:40px;font-size:13px}a:focus-visible{outline:3px solid #a14634;outline-offset:4px}.answer{background:#e7e9dc;padding:20px;border-left:3px solid #6c8061}