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:root{font-family:system-ui,"Microsoft YaHei",sans-serif;color:#243d41;background:#f5f8f7;line-height:1.65}*{box-sizing:border-box}body{margin:0}header{background:#fff;border-bottom:1px solid #dce6e3;padding:18px max(20px,calc((100% - 1000px)/2));color:#166b66;font-weight:700}main{max-width:1000px;margin:32px auto;padding:0 20px}h1{font-size:28px;margin:0 0 12px}h2{font-size:20px}.card{background:white;padding:24px;border:1px solid #dce6e3;border-radius:12px;margin:20px 0}label{display:block;margin:12px 0 6px}input,button{font:inherit}input{max-width:100%;width:100%;padding:12px;border:1px solid #9aacaa;border-radius:7px}button,.button{display:inline-block;background:#176f69;color:#fff;padding:10px 18px;border:0;border-radius:7px;cursor:pointer;margin:8px 8px 8px 0;text-decoration:none}button:disabled{opacity:.5;cursor:wait}a{color:#176f69}.muted{color:#526969}.error{color:#a12424}ul{list-style:none;padding:0}li{padding:12px 0;border-bottom:1px solid #e5eeeb;overflow-wrap:anywhere}progress{width:100%;height:12px}.preview{max-width:100%;max-height:70vh;object-fit:contain;cursor:zoom-in}.wide{max-height:none;width:100%;cursor:zoom-out}.narrow{max-width:460px}#link{font-size:14px}#status{min-height:26px;white-space:pre-wrap}small{display:block}@media(max-width:600px){main{margin-top:20px}.card{padding:18px}h1{font-size:24px}}