:root {
  --ink: #20313f;
  --muted: #62717d;
  --brand: #1f5f8b;
  --brand-dark: #174665;
  --accent: #f2a541;
  --surface: #ffffff;
  --soft: #eef5f9;
  --line: #d5e0e7;
  --danger: #9b2c2c;
  --shadow: 0 16px 45px rgba(24, 65, 91, .12);
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: #f8fbfd; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif; line-height: 1.65; }
a { color: var(--brand); }
.shell { width: min(1080px, calc(100% - 36px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.93); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 68px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; font-weight: 800; color: var(--ink); }
.brand-rulemix { letter-spacing: .08em; font-size: .82rem; text-transform: uppercase; color: var(--muted); }
.brand-app { font-size: 1.2rem; }
.nav { display: flex; gap: 18px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--muted); font-weight: 650; font-size: .94rem; white-space: nowrap; }
.nav a.is-active, .nav a:hover { color: var(--brand); }
.language-switch { text-decoration: none; border: 1px solid var(--line); border-radius: 999px; padding: 7px 12px; font-size: .85rem; background: #fff; }
.hero { padding: 88px 0 62px; background: radial-gradient(circle at top right, #dbeef8 0, transparent 42%), linear-gradient(145deg,#f8fbfd,#edf6fb); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(280px,.85fr); gap: 46px; align-items: center; }
.eyebrow { color: var(--brand); font-weight: 800; letter-spacing: .08em; font-size: .82rem; text-transform: uppercase; }
h1 { font-size: clamp(2.35rem, 6vw, 4.6rem); letter-spacing: -.055em; line-height: 1.03; margin: 12px 0 20px; }
h2 { font-size: clamp(1.65rem, 3.4vw, 2.45rem); letter-spacing: -.035em; line-height: 1.18; margin: 0 0 16px; }
h3 { margin-bottom: 8px; }
.lead { color: var(--muted); font-size: 1.12rem; max-width: 720px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; border-radius: 12px; padding: 12px 18px; font-weight: 750; border: 1px solid var(--brand); }
.button.primary { background: var(--brand); color: #fff; }
.button.secondary { background: #fff; color: var(--brand); }
.phone-card { background: #fff; border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); padding: 22px; transform: rotate(1.5deg); }
.mini-card { border: 1px solid var(--line); border-radius: 18px; padding: 14px 16px; margin: 10px 0; background: #fff; }
.mini-card strong { display: block; }
.mini-card span { color: var(--muted); font-size: .9rem; }
.badge { display: inline-block; padding: 4px 9px; border-radius: 999px; background: #fff0d9; color: #8a5500; font-weight: 750; font-size: .78rem; }
.section { padding: 70px 0; }
.section.alt { background: var(--soft); border-block: 1px solid var(--line); }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 24px; box-shadow: 0 8px 28px rgba(24,65,91,.06); }
.card p:last-child { margin-bottom: 0; }
.feature-icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: var(--soft); color: var(--brand); font-weight: 900; }
.list { padding-left: 1.25rem; }
.notice { border-left: 4px solid var(--accent); background: #fff8eb; padding: 16px 18px; border-radius: 0 12px 12px 0; }
.policy { padding: 64px 0 86px; }
.policy-head { margin-bottom: 34px; }
.policy article { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: clamp(22px, 5vw, 44px); box-shadow: 0 10px 34px rgba(24,65,91,.06); }
.policy article section { margin: 34px 0; }
.meta { color: var(--muted); font-size: .92rem; }
.faq details { border-top: 1px solid var(--line); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 750; }
.support-box { background: var(--soft); border: 1px solid var(--line); border-radius: 16px; padding: 20px; }
.deployment-warning { color: var(--danger); font-weight: 750; }
.site-footer { border-top: 1px solid var(--line); background: #fff; padding: 34px 0; color: var(--muted); font-size: .91rem; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; }
@media (max-width: 760px) {
  .header-inner { flex-wrap: wrap; padding: 12px 0; gap: 12px; }
  .nav { order: 3; width: 100%; overflow-x: auto; margin-left: 0; padding-bottom: 3px; gap: 14px; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .language-switch { margin-left: auto; }
  .hero { padding-top: 58px; }
  .hero-grid, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .phone-card { transform: none; }
  .footer-grid { flex-direction: column; }
}