*{box-sizing:border-box}
:root{
  --bg:#f6f8fb;--card:#fff;--text:#101828;--muted:#667085;--line:#e4e7ec;
  --accent:#1d4ed8;--accent2:#2563eb;
}
body{margin:0;font-family:Arial,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;background:var(--bg);color:var(--text)}
.page{min-height:100vh;padding:24px 16px 48px}
.hero{width:min(100%,520px);margin:0 auto}
.badge{display:inline-block;padding:8px 12px;border-radius:999px;background:#eaf1ff;color:#1e40af;font-size:14px;font-weight:700;margin-bottom:16px}
h1{margin:0;font-size:34px;line-height:1.2;letter-spacing:-1.3px}
h1 span{color:var(--accent)}
.sub{margin:14px 0 18px;color:var(--muted);font-size:16px;line-height:1.6}
.info-card{display:flex;flex-direction:column;gap:4px;background:#eef4ff;border:1px solid #dbe7ff;border-radius:16px;padding:16px;margin-bottom:16px}
.info-card strong{font-size:15px}.info-card span{font-size:13px;color:#475467}
.form{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 10px 30px rgba(16,24,40,.06)}
label,.field{display:block;margin-bottom:16px}
label>span,.field-title{display:block;margin-bottom:8px;font-size:14px;font-weight:700}
input[type=text],input[type=password]{
  width:100%;height:52px;border:1px solid #d0d5dd;border-radius:12px;padding:0 14px;font-size:16px;outline:none;background:#fff
}
input:focus{border-color:#84adff;box-shadow:0 0 0 4px rgba(37,99,235,.08)}
.address-row{display:grid;grid-template-columns:minmax(0,1fr) 104px;gap:8px}
.small-btn{
  height:52px;border:0;border-radius:12px;background:#eef4ff;color:#1d4ed8;font-size:14px;font-weight:800;cursor:pointer
}
.detail-address{margin-top:8px}
.phone-row,.rrn-row{display:grid;align-items:center;gap:8px}
.phone-row{grid-template-columns:.72fr 12px 1fr 12px 1fr}
.rrn-row{grid-template-columns:minmax(0,1fr) 12px minmax(0,1fr)}
.phone-row strong,.rrn-row strong{text-align:center;color:#475467}
.help{display:block;color:#667085;margin-top:7px;line-height:1.4;font-size:12px}
.warn{display:block;color:#b42318;margin-top:7px;line-height:1.4;font-size:12px}
.consents{margin:4px 0 18px;border-top:1px solid var(--line);padding-top:16px}
.check{display:flex;align-items:flex-start;gap:10px;margin:0 0 11px}.check input{margin-top:3px}
.check span{margin:0;font-size:13px;font-weight:500;color:#344054}
.submit-btn{
  width:100%;height:56px;border:0;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-size:17px;font-weight:800;cursor:pointer
}
.notice{margin:14px 4px 0;color:#98a2b3;font-size:12px;line-height:1.5}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.48);display:grid;place-items:center;padding:18px}
.hidden{display:none}
.modal-card{width:min(100%,420px);background:#fff;border-radius:20px;padding:24px;text-align:center}
.modal-card h2{margin:0 0 10px}.modal-card p{color:#667085;line-height:1.6}
.modal-card button{margin-top:8px;width:100%;height:52px;border:0;border-radius:12px;background:#2563eb;color:#fff;font-weight:800}
@media (max-width:420px){
  h1{font-size:30px}.form{padding:17px}
  .address-row{grid-template-columns:minmax(0,1fr) 92px}
  input[type=text],input[type=password]{padding:0 10px}
}