*{box-sizing:border-box}
body{margin:0;font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;background:#0f1115;color:#e6e8ee}
.top{display:flex;align-items:center;gap:12px;padding:16px 24px;background:#161a22;border-bottom:1px solid #232833}
.top h1{margin:0;font-size:18px;font-weight:600}
.env{font-size:12px;color:#8b93a7;border:1px solid #2a3140;border-radius:10px;padding:2px 10px}
.wrap{max-width:720px;margin:48px auto;padding:0 24px}
.card{background:#161a22;border:1px solid #232833;border-radius:14px;padding:24px}
.card h2{margin:0 0 12px;font-size:16px;font-weight:600}
.card p{margin:8px 0;color:#a9b1c4}
.hint{font-size:13px;color:#7d8598}