:root{color-scheme:light;--ink:#142226;--muted:#576b70;--line:#dbe3e5;--teal:#0b7167;--mint:#95f4d5;--paper:#fff;--back:#eef2f3;--danger:#ae2d38;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.55}*{box-sizing:border-box}body{margin:0;background:var(--back);color:var(--ink);min-height:100svh;display:flex;flex-direction:column}button,input,textarea{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #249d8e;outline-offset:3px}.topbar{min-height:88px;background:var(--ink);color:#fff;padding:20px clamp(20px,6vw,80px);display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:750}.brand span span{font-weight:400;color:#d3e4e3}.brand i{height:20px;width:1px;background:#4c5d60;margin:0 8px}.brand small{font-size:15px;font-weight:500;letter-spacing:.08em;color:#d9e9e7}.quiet{padding:9px 14px;color:#fff;background:transparent;border:1px solid #607174;border-radius:6px}.quiet:hover{background:#26383c}main{width:100%;max-width:640px;padding:52px 24px 32px;margin:auto;flex:1}.panel{background:var(--paper);padding:36px;border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:10px;box-shadow:0 12px 35px #122b3010}.heading{margin-bottom:28px}.eyebrow{color:var(--teal);font-size:13px;letter-spacing:.15em;font-weight:700}h1{font-size:28px;line-height:1.3;margin:12px 0 8px}.heading p{font-size:15px;color:var(--muted);margin:0}label{display:block;font-size:15px;font-weight:650;margin:20px 0 9px}input,textarea{display:block;width:100%;color:var(--ink);background:#fff;border:1px solid #a8babc;border-radius:6px;padding:13px 14px;font-size:16px;line-height:1.65}textarea{resize:vertical;overflow-wrap:anywhere}#machine-code,#activation-key{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;word-break:break-all}#machine-code{min-height:92px}.help{font-size:14px;color:var(--muted);margin:10px 0 0}.primary,.secondary{width:100%;border-radius:6px;min-height:49px;padding:11px 18px;font-weight:650}.primary{background:var(--ink);color:var(--mint);border:1px solid var(--ink);margin-top:25px}.primary:hover{background:#244247}.secondary{background:#e7f8f1;border:1px solid #9bcbba;color:#075345;margin-top:17px}.message{font-size:14px;color:var(--danger);background:#fff1f1;border-radius:5px;padding:10px 12px;margin:0 0 18px}.message.success{color:#075345;background:#e7f8f1}.empty,.result{border-top:1px solid var(--line);margin-top:28px;padding-top:24px}.empty{text-align:center;color:var(--muted);font-size:14px}.result>div{display:flex;justify-content:space-between;align-items:center}.result label{margin:0}.result span,.copy-message{color:var(--teal);font-size:14px}#activation-key{font-size:14px;background:#f5f8f8;min-height:157px;margin-top:10px}.platform{text-align:center;color:var(--muted);font-size:14px;margin:22px 0 0}footer{padding:20px;text-align:center;color:#6a7d81;font-size:12px;letter-spacing:.1em}@media(max-width:520px){.topbar{min-height:74px;padding:16px}.brand{gap:9px;font-size:18px}.brand i,.brand small{display:none}main{padding:28px 16px}.panel{padding:25px 21px}h1{font-size:26px}#activation-key{min-height:220px}}
.brand>img{display:block;flex:0 0 auto;border-radius:9px}