:root{--ink:#18212f;--muted:#687385;--line:#e5e9ef;--bg:#f5f7fa;--card:#fff;--accent:#2457d6;--accent2:#173d9b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
.topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(22px,calc((100% - 1040px)/2));font-size:15px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.2px}.mark{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--ink);color:#fff;font-weight:800}.secure{color:#647084;font-size:12px}
.shell{max-width:900px;margin:0 auto;padding:52px 20px 70px}.hero{margin-bottom:26px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.4px;color:var(--accent);margin-bottom:9px}.hero h1{font-size:38px;line-height:1.12;margin:0 0 12px;letter-spacing:-1.1px}.hero p{font-size:16px;line-height:1.6;color:var(--muted);max-width:680px;margin:0}
.notice{display:flex;gap:14px;align-items:flex-start;background:#eef4ff;border:1px solid #d5e2ff;border-radius:12px;padding:14px 16px;margin:0 0 18px;color:#30405a;font-size:13px;line-height:1.5}.notice strong{white-space:nowrap;color:#1f4cae}.compact{margin:20px 0 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:0 8px 28px rgba(20,31,50,.05);margin-bottom:18px}.stepper{display:flex;align-items:center;margin-bottom:32px}.step{display:flex;align-items:center;gap:8px;color:#8b95a5;font-size:12px;font-weight:600}.step b{width:28px;height:28px;border:1px solid #d9dee6;border-radius:50%;display:grid;place-items:center;font-size:12px}.step.active{color:var(--ink)}.step.active b{background:var(--accent);border-color:var(--accent);color:#fff}.line{height:1px;background:#e3e7ed;flex:1;margin:0 12px}
.section-title{margin-bottom:22px}.section-title h2{font-size:23px;margin:0 0 6px;letter-spacing:-.4px}.section-title p{color:var(--muted);margin:0;font-size:14px}
label{display:block;font-size:13px;font-weight:650;margin:0 0 17px;color:#3d4756}input,select{display:block;width:100%;margin-top:8px;height:48px;border:1px solid #d8dee7;border-radius:9px;padding:0 13px;font:inherit;color:var(--ink);background:#fff;outline:none}input:focus,select:focus{border-color:#7b9bea;box-shadow:0 0 0 3px #e9efff}.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
button{width:100%;height:48px;border:0;border-radius:9px;background:var(--accent);color:#fff;font:650 14px inherit;cursor:pointer;margin-top:5px}button:hover{background:var(--accent2)}button span{margin-left:8px}.hidden{display:none}.check,.lock,.success-icon{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#edf7ef;color:#248345;font-weight:800;margin-bottom:14px}.lock{background:#eef3ff;color:var(--accent)}.center{text-align:center}.success-icon{margin:0 auto 16px;font-size:22px}.summary{background:#f7f8fa;border-radius:10px;padding:15px;font-size:13px;line-height:1.8;color:#556071}.demo-payment{border-top:1px solid var(--line);margin-top:22px;padding-top:20px}.demo-payment h3{margin:9px 0 6px;font-size:17px}.demo-payment p{color:var(--muted);font-size:13px;line-height:1.55}.pill{display:inline-block;padding:5px 8px;border-radius:99px;background:#fff1d9;color:#8a5a0a;font-size:10px;font-weight:800;letter-spacing:.8px}.amount{border:1px solid var(--line);border-radius:12px;padding:18px;margin:12px 0}.amount small{display:block;color:var(--muted);font-size:10px;letter-spacing:1px;font-weight:800;margin-bottom:5px}.amount strong{font-size:30px}footer{text-align:center;color:#8993a2;font-size:12px;padding:0 20px 35px}
@media(max-width:600px){.topbar{padding:0 16px}.shell{padding:35px 14px 55px}.hero h1{font-size:30px}.card{padding:22px}.grid{grid-template-columns:1fr}.secure{font-size:11px}.step span{display:none}.stepper .line{margin:0 7px}}