:root {
  --bg: #f5f6f8; --card: #fff; --text: #1d2330; --muted: #677080; --line: #e3e6eb;
  --primary: #2457d6; --primary-weak: #eaf0fd; --ok: #13804b; --fail: #c62f2f;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif; }
a { color: var(--primary); }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
.badge { font-size: 12px; padding: 3px 10px; border-radius: 99px; background: #fff4d6; color: #7a5600; white-space: nowrap; }
main { max-width: 760px; margin: 24px auto; padding: 0 16px; }
footer { max-width: 760px; margin: 0 auto 32px; padding: 0 16px; color: var(--muted); font-size: 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; margin-bottom: 16px; }
h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 16px; margin: 22px 0 10px; }
.lead, .small { color: var(--muted); }
.small { font-size: 13px; }
.ok { color: var(--ok); } .fail { color: var(--fail); }
.products, .methods { display: grid; gap: 8px; }
.product { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.product:has(input:checked) { border-color: var(--primary); background: var(--primary-weak); }
.pname { flex: 1; } .pprice { font-weight: 600; }
.pgs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 520px) { .pgs { grid-template-columns: 1fr; } }
.btn { display: inline-block; font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--text); padding: 10px 18px; border-radius: 10px; cursor: pointer; text-decoration: none; }
.btn.pg { text-align: left; padding: 14px 16px; }
.btn.pg strong { display: block; font-size: 16px; } .btn.pg span { color: var(--muted); font-size: 13px; }
.btn.pg:hover { border-color: var(--primary); background: var(--primary-weak); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; font-weight: 600; }
.btn.primary:disabled { opacity: .5; cursor: default; }
.btn.danger { border-color: var(--fail); color: var(--fail); }
.btn.wide { width: 100%; margin-top: 16px; padding: 14px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0; }
.actions form { margin: 0; }
.kv { display: grid; grid-template-columns: 90px 1fr; gap: 6px 12px; margin: 14px 0; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; word-break: break-all; }
.note { margin-top: 20px; padding: 14px 16px; background: #f8f9fb; border-radius: 10px; font-size: 13px; }
.note ul { margin: 6px 0 0; padding-left: 18px; }
.flow { padding-left: 20px; margin: 0; } .flow li { margin: 4px 0; } .flow b { margin-right: 6px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
details { margin-top: 8px; } summary { cursor: pointer; color: var(--muted); }
pre { background: #f8f9fb; border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow: auto; font-size: 12px; max-height: 420px; }
code { font-size: 13px; }
.agent-banner { display: block; text-decoration: none; color: var(--text); border-color: var(--primary); background: var(--primary-weak); }
.agent-banner strong { display: block; font-size: 17px; color: var(--primary); }
.agent-banner span { color: var(--muted); font-size: 13px; }