:root{font-family:system-ui,"Microsoft YaHei",sans-serif;color:#20364a;background:#f3f5f7}*{box-sizing:border-box}body{margin:0}main{max-width:880px;margin:36px auto;padding:0 20px}header{margin-bottom:24px}small{letter-spacing:.15em}h1{font-size:30px}h2{font-size:22px}h3{font-size:16px;margin:24px 0 12px}p,footer{line-height:1.7;color:#5d6b79}section{background:white;border:1px solid #dce2e8;border-radius:14px;padding:24px;margin:20px 0}label{display:block;margin:16px 0;font-weight:600}input{display:block;width:100%;border:1px solid #bac7d2;border-radius:7px;padding:13px;font:inherit;margin-top:8px;min-height:46px}button,a{font:inherit;cursor:pointer}button{background:#245d8c;color:white;border:0;border-radius:7px;padding:12px 18px;min-height:44px}button:disabled{opacity:.5}.secondary{background:#edf1f5;color:#32495e}nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}a{color:#245d8c}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #91b7da;outline-offset:3px}.user{border-bottom:1px solid #e0e6ec;padding:16px 0}.user p{margin:6px 0}.buttons{display:flex;gap:8px;flex-wrap:wrap}#message:not(:empty){padding:14px;background:#fff0d9;border-radius:8px;white-space:pre-wrap}#temporary{background:#fff8e6;padding:16px;margin-top:20px}pre{white-space:pre-wrap;overflow-wrap:anywhere}details{margin-top:24px}footer{font-size:13px;padding:16px 0}[hidden]{display:none!important}
.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:stretch}.tool-entry{display:flex;gap:12px;align-items:center;min-width:0;min-height:110px;padding:20px;border:1px solid #cbd8e3;border-radius:12px;text-decoration:none;background:#f8fbfe;color:#203e59}.tool-entry:hover{background:#eaf3fc;border-color:#91b7da}.tool-number{display:grid;place-items:center;flex-shrink:0;width:34px;height:34px;border-radius:9px;background:#e7eff7;color:#326890;font-size:13px;font-weight:700}.tool-copy{display:flex;flex:1;min-width:0;flex-direction:column;gap:7px}.tool-copy strong{font-size:20px;line-height:1.4}.tool-copy small{font-size:13px;color:#617385;letter-spacing:0;line-height:1.4}.tool-arrow{font-size:21px;color:#397198}.tool-hint{margin:12px 0 0;font-size:13px}.account-actions{border-top:1px solid #e4e9ef;margin-top:22px;padding-top:18px;justify-content:space-between;gap:10px}#passwordLink{font-size:14px}.account-actions .secondary{font-size:14px;padding:9px 14px}#passwordBox{scroll-margin-top:20px}
@media (max-width:620px){main{margin:20px auto;padding:0 14px}section{padding:18px}h1{font-size:26px}.tool-grid{grid-template-columns:minmax(0,1fr);gap:9px}.tool-entry{padding:14px 10px;gap:7px;min-height:100px}.tool-number{display:none}.tool-copy strong{font-size:14px}.tool-copy small{font-size:11px}.tool-arrow{font-size:17px}.account-actions{align-items:center}.account-actions .secondary{width:auto}.buttons{display:grid;grid-template-columns:1fr 1fr;width:100%}.buttons button{width:100%}}