:root{--primary:#2e7df6;--ink:#10305a;--accent:#c3a55f;--tint:#eaf3fc;--bg:#f5f7fb;--panel:#fff;--line:#e3e9f2;--soft:#5a6b85;--faint:#93a0b8;--shadow:0 12px 40px rgba(16,48,90,.1);--good:#1e9e5a}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}.wrap{max-width:920px;margin:0 auto;padding:24px 20px 60px}.tabnums{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}button,input,select{font-family:inherit;font-size:16px}.step{background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);margin-top:16px;overflow:hidden;transition:opacity .2s}.step.locked{opacity:.55}.step-head{display:flex;align-items:center;gap:13px;padding:18px 22px;border-bottom:1px solid var(--line)}.step-n{width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;display:grid;place-items:center;flex-shrink:0;font-size:15px}.step.locked .step-n{background:var(--line);color:var(--faint)}.step.done .step-n{background:var(--good)}.step-title{font-weight:800;font-size:17px}.step-sub{font-size:13px;color:var(--faint)}.step-body{padding:22px}label{display:block;font-size:13px;font-weight:700;color:var(--soft);margin-bottom:6px}.inp{width:100%;padding:12px 14px;border-radius:11px;border:1.5px solid var(--line);background:#fff;color:var(--ink);font-weight:500}.inp:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 20%,transparent)}.inp:disabled{background:#f3f5f9;color:var(--faint)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:12px;padding:14px 24px;font-weight:800;font-size:16px;cursor:pointer;transition:filter .15s,transform .08s}.btn:hover{filter:brightness(1.05)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;width:100%}.btn-accent{background:var(--ink);color:#fff}.grid2{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}.err{color:#c0392b;font-size:13.5px;margin-top:10px}.muted{color:var(--faint)}@media (max-width:640px){.grid2{grid-template-columns:1fr}}