:root { color-scheme: light; --ink: #17202c; --muted: #526071; --line: #dce2e9; --blue: #1b4d87; --soft: #f4f7fb; }
* { box-sizing: border-box; }
body { margin: 0; background: #fff; color: var(--ink); font: 17px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", Arial, sans-serif; word-break: normal; overflow-wrap: break-word; }
a { color: var(--blue); text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; border-radius: 3px; }
.skip { position: absolute; left: 20px; top: -100px; padding: 8px 16px; background: #fff; z-index: 1; }
.skip:focus { top: 12px; }
.container { width: min(1080px, 100% - 48px); margin: auto; }
.topbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.brand { color: var(--ink); font-weight: 750; letter-spacing: .06em; text-decoration: none; }
.languages { display: flex; gap: 18px; }
.languages [aria-current] { color: var(--ink); font-weight: 700; text-decoration: none; }
.hero { text-align: center; padding: 64px 0 52px; border-bottom: 2px solid var(--ink); }
.app-icon { display: block; width: 100px; height: 100px; border-radius: 25px; margin: 0 auto 24px; box-shadow: 0 8px 24px #17202c20; }
.eyebrow { color: var(--blue); text-transform: uppercase; font-size: 12px; font-weight: 750; letter-spacing: .15em; }
h1, h2, h3 { color: var(--ink); line-height: 1.25; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -.045em; margin: 12px 0 18px; }
.subtitle { font-size: clamp(1.15rem, 2.4vw, 1.45rem); color: var(--muted); max-width: 660px; margin: 0 auto 26px; }
.stores { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 26px 0 14px; }
.store { border: 1px solid var(--ink); border-radius: 12px; padding: 11px 24px; min-width: 190px; text-align: left; background: var(--ink); color: #fff; line-height: 1.4; }
.store small { display: block; font-size: 12px; color: #dce5ef; }
.store strong { display: block; font-size: 19px; }
.note, .meta { color: var(--muted); font-size: 14px; }
.hero-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 24px; margin-top: 24px; font-size: 15px; }
.section { padding: 42px 0; border-bottom: 1px solid var(--line); }
h2 { font-size: 1.65rem; letter-spacing: -.025em; margin: 0 0 20px; }
h3 { font-size: 1.12rem; margin: 0 0 10px; }
p { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }
.intro { max-width: 790px; color: var(--muted); }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.card { background: var(--soft); border: 1px solid var(--line); border-radius: 12px; padding: 26px; }
.card p { font-size: 15px; color: var(--muted); }
.number { display: block; font-size: 13px; color: var(--blue); font-weight: 750; letter-spacing: .08em; margin-bottom: 20px; }
.steps { padding-left: 26px; max-width: 790px; }
.steps li { padding: 0 0 15px 8px; }
.steps li::marker { color: var(--blue); font-weight: 700; }
.callout { background: var(--soft); border-left: 3px solid var(--blue); border-radius: 0 10px 10px 0; padding: 22px 26px; }
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
details:last-child { border: 0; }
summary { cursor: pointer; font-weight: 650; }
details p { margin: 12px 0 0; color: var(--muted); max-width: 800px; }
.footer { padding: 30px 0 40px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; font-size: 14px; color: var(--muted); }
.footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
.policy { max-width: 820px; }
.policy-header { padding: 46px 0 32px; border-bottom: 2px solid var(--ink); margin-bottom: 30px; }
.policy-header h1 { font-size: clamp(2rem, 4vw, 2.8rem); }
.policy .section { padding: 30px 0; }
.policy h2 { font-size: 1.35rem; }
.policy ul { padding-left: 24px; }
.policy li { margin-bottom: 8px; }
.contents { margin-top: 24px; padding: 20px 24px; border: 1px solid var(--line); border-radius: 10px; }
.contents ol { columns: 2; margin-bottom: 0; padding-left: 24px; }
.contents li { break-inside: avoid; font-size: 14px; }
html:lang(ko) { word-break: keep-all; }
@media (max-width: 760px) {
  .features { grid-template-columns: 1fr; }
  .container { width: calc(100% - 36px); }
  .hero { padding: 42px 0 36px; }
  .section { padding: 32px 0; }
  .card { padding: 22px; }
  .number { margin-bottom: 10px; }
  .contents ol { columns: 1; }
}
@media (max-width: 420px) { .store { min-width: 0; flex: 1; padding: 12px 16px; } .store strong { font-size: 17px; } }