:root{
  --bg:#f6f7f9;--surface:#fff;--ink:#0b0b0c;--muted:#6b7280;--line:#e7e9ee;
  --green:#16a34a;--red:#dc2626;--grad:linear-gradient(90deg,#7c3aed,#2563eb);
  --r:18px;--shadow:0 1px 2px rgba(16,24,40,.04),0 10px 30px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.rx-container{max-width:620px;margin:0 auto;padding:0 20px}

.rx-header{position:sticky;top:0;z-index:10;background:rgba(246,247,249,.85);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.rx-header-inner{display:flex;align-items:center;justify-content:space-between;height:60px;max-width:620px;margin:0 auto}
.rx-brand{display:flex;align-items:center;gap:9px;font-weight:700}
.rx-brand-dot{width:20px;height:20px;border-radius:50%;background:var(--grad)}
.rx-header-tag{font-size:13px;color:var(--muted)}
.rx-nav{display:flex;gap:20px;font-size:14px;font-weight:600;color:#4b5563}
.rx-nav a{transition:.15s}
.rx-nav a:hover{color:var(--ink)}

.rx-main{padding:44px 20px 60px}
.rx-eyebrow{font-size:12px;letter-spacing:.08em;color:var(--muted);font-weight:600}
.rx-title{font-size:40px;font-weight:800;letter-spacing:-.03em;margin:10px 0 0}
.rx-grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.rx-sub{color:var(--muted);margin:14px 0 26px}

.rx-steps{list-style:none;display:flex;gap:6px;padding:0;margin:0 0 18px;flex-wrap:wrap}
.rx-steps li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);
  padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:#fff}
.rx-steps li span{width:20px;height:20px;border-radius:50%;background:#e9ebf0;color:#6b7280;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.rx-steps li.active{color:var(--ink);border-color:#c7ccff;background:#fff}
.rx-steps li.active span{background:var(--ink);color:#fff}
.rx-steps li.done span{background:var(--green);color:#fff}

.rx-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:26px}
.rx-panel{display:none;animation:fade .25s ease}
.rx-panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.rx-label{display:block;font-size:13px;font-weight:600;color:#374151;margin-bottom:8px}
.rx-label em{color:var(--muted);font-style:normal;font-weight:400}
.rx-input{width:100%;border:1px solid var(--line);border-radius:12px;padding:13px 16px;font-size:15px;
  outline:none;transition:.15s;font-family:inherit}
.rx-input:focus{border-color:#b6bcc7;box-shadow:0 0 0 4px rgba(37,99,235,.08)}

.rx-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;
  border-radius:999px;padding:12px 22px;font-weight:600;font-size:14px;cursor:pointer;transition:.18s;font-family:inherit}
.rx-btn:disabled{opacity:.55;cursor:not-allowed}
.rx-btn-dark{background:var(--ink);color:#fff}
.rx-btn-dark:hover:not(:disabled){background:#26272b;transform:translateY(-1px)}
.rx-btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.rx-block{width:100%;margin-top:18px}
.rx-actions{display:flex;gap:12px;justify-content:space-between;margin-top:22px}
.rx-actions .rx-btn{flex:1}

.rx-err{margin-top:12px;color:var(--red);font-size:13px;background:#fef2f2;border:1px solid #fecaca;
  border-radius:10px;padding:10px 14px}

.rx-summary{background:#f8f9fb;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:20px}
.rx-summary-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}
.rx-summary-row span{color:var(--muted)}

.rx-processing{text-align:center;padding:24px 0}
.rx-spinner{width:44px;height:44px;border-radius:50%;border:3px solid #e7e9ee;border-top-color:#2563eb;
  margin:0 auto 18px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.rx-proc-title{font-weight:700;font-size:17px}
.rx-proc-sub{color:var(--muted);font-size:13px;margin-top:6px}

.rx-result{text-align:center;padding:8px 0}
.rx-badge{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:28px;margin:0 auto 16px}
.rx-badge.ok{background:#dcfce7;color:var(--green)}
.rx-badge.no{background:#fee2e2;color:var(--red)}
.rx-result h2{font-size:20px;margin:0 0 6px}
.rx-result p{color:var(--muted);margin:0 0 18px}
.rx-payload{display:flex;gap:10px;align-items:center;background:#0b0b0d;color:#fff;border-radius:12px;
  padding:14px 16px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;word-break:break-all;text-align:left}
.rx-payload code{flex:1}
.rx-copy{background:#26272c;border:1px solid #34363c;color:#fff;border-radius:8px;padding:7px 12px;font-size:13px;cursor:pointer;flex:0 0 auto}
.rx-copy:hover{background:#fff;color:#0b0b0d}

.rx-foot{text-align:center;color:var(--muted);font-size:12px;margin-top:24px}

@media (max-width:560px){
  .rx-title{font-size:30px}
  .rx-steps li{padding:7px 10px;font-size:12px}
  .rx-steps li span{width:18px;height:18px}
}