:root {
  --primary: #0f9f98;
  --primary-deep: #064a4e;
  --primary-soft: #e7f8f6;
  --accent-warm: #f2b84b;
  --paper: #ffffff;
  --paper-soft: #f6fbfa;
  --ink: #07191a;
  --muted: #4b5f61;
  --line: rgba(9, 88, 91, 0.14);
  --card: #ffffff;
  --shadow-soft: 0 20px 54px rgba(23, 60, 63, 0.12);
  --shadow-card: 0 12px 28px rgba(23, 60, 63, 0.09);
  --radius-card: 8px;
  --radius-pill: 999px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Plus Jakarta Sans", "Noto Sans KR", sans-serif;
  background: var(--paper);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 61%, rgba(15, 159, 152, 0.08) 61.1%, transparent 61.5%),
    linear-gradient(150deg, transparent 0 69%, rgba(242, 184, 75, 0.1) 69.1%, transparent 69.45%),
    linear-gradient(180deg, #ffffff 0%, #f7fcfb 100%);
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(1100px, calc(100% - 48px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  padding-top: 22px;
}
.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand img {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
}
.brand-copy strong {
  color: var(--primary-deep);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}
.main-nav,
.header-ctas,
.footer-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.main-nav {
  margin-right: auto;
  color: #111f20;
  font-size: 1rem;
  font-weight: 500;
}
.main-nav a,
.footer-links a {
  transition: color 0.18s ease;
}
.main-nav a:hover,
.footer-links a:hover { color: var(--primary); }
.lang-switcher {
  display: inline-flex;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(23, 60, 63, 0.08);
}
.lang-switcher button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 14px;
  cursor: pointer;
}
.lang-switcher button.active {
  background: var(--primary-soft);
  color: var(--primary-deep);
  font-weight: 700;
}

main { overflow: hidden; }
.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 470px;
  gap: 58px;
  align-items: center;
  padding-top: 54px;
}
.hero-copy {
  display: grid;
  gap: 24px;
}
.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.eyebrow-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent-warm);
}
.hero h1,
.section-heading h2,
.trust-band h2,
.page-card h1 {
  margin: 0;
  color: var(--primary-deep);
  font-weight: 800;
  letter-spacing: 0;
}
.hero h1 {
  max-width: 620px;
  font-size: 4.6rem;
  line-height: 1.05;
}
.hero p,
.section-heading p,
.feature-card p,
.mini-card p,
.screen-card span,
.step p,
.trust-item,
.page-card p,
.page-card li {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}
.hero-copy > p {
  max-width: 610px;
  margin: 0;
  color: #172728;
  font-size: 1.26rem;
  line-height: 1.55;
}
.hero-visual {
  position: relative;
  min-height: 640px;
  display: grid;
  place-items: center;
}
.lens-lines {
  position: absolute;
  inset: 62px -70px 64px 8px;
  border: 1px solid rgba(15, 159, 152, 0.12);
}
.lens-lines::before,
.lens-lines::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.lens-lines::before {
  background:
    linear-gradient(39deg, transparent 49.7%, rgba(15, 159, 152, 0.18) 50%, transparent 50.3%),
    linear-gradient(141deg, transparent 49.7%, rgba(15, 159, 152, 0.14) 50%, transparent 50.3%);
}
.lens-lines::after {
  left: 38%;
  top: 45%;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(15, 159, 152, 0.11);
  border-radius: 50%;
}
.phone-frame {
  position: relative;
  z-index: 1;
  width: 310px;
  aspect-ratio: 0.49 / 1;
  margin: 0;
  padding: 14px;
  border-radius: 42px;
  background: #111;
  box-shadow: 0 34px 72px rgba(7, 25, 26, 0.28);
  transform: rotate(5deg);
}
.phone-frame::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 38px;
  pointer-events: none;
  z-index: 2;
}
.phone-speaker {
  position: absolute;
  top: 20px;
  left: 50%;
  z-index: 3;
  width: 76px;
  height: 21px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #050607;
}
.phone-frame img {
  width: 100%;
  height: 100%;
  border-radius: 30px;
  object-fit: cover;
  object-position: center top;
}

.section {
  padding-top: 96px;
  padding-bottom: 20px;
}
.section-heading {
  max-width: 720px;
  display: grid;
  gap: 14px;
}
.section-heading-center {
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  justify-items: center;
}
.section-heading h2,
.trust-band h2,
.page-card h1 {
  font-size: 3.1rem;
  line-height: 1.08;
}
.section-heading p { margin: 0; font-size: 1.14rem; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-top: 46px;
}
.feature-card,
.mini-card,
.screen-card,
.step,
.page-card {
  border: 1px solid rgba(9, 88, 91, 0.1);
  border-radius: var(--radius-card);
  background: var(--card);
  box-shadow: var(--shadow-card);
}
.feature-card {
  min-height: 312px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 34px 28px 28px;
}
.feature-icon {
  width: 86px;
  height: 86px;
  display: grid;
  place-items: center;
  color: var(--primary);
  margin-bottom: 22px;
}
.feature-icon img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.feature-icon-qr {
  transform: scale(1.28);
}
.feature-card h3,
.mini-card h4,
.screen-card strong,
.step h3,
.page-card h2,
.faq-item strong {
  margin: 0;
  color: var(--primary-deep);
  font-weight: 800;
  letter-spacing: 0;
}
.feature-card h3 {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.28rem;
  line-height: 1.16;
}
.feature-card p {
  margin: 14px 0 0;
}
.helper-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: stretch;
  margin-top: 34px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, #f8fdfc 0%, #ffffff 64%);
}
.helper-panel h3 {
  margin: 8px 0 0;
  color: var(--primary-deep);
  font-size: 2rem;
  line-height: 1.14;
}
.helper-panel p { margin: 0; }
.helper-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.mini-card {
  padding: 22px;
  box-shadow: none;
}
.mini-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
}
.mini-card h4 {
  font-size: 1.08rem;
  margin-bottom: 10px;
}
.mini-card p {
  margin: 0;
  font-size: 0.94rem;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 22px;
  margin-top: 34px;
}
.screen-card {
  overflow: hidden;
  margin: 0;
}
.screen-card img {
  width: 100%;
  aspect-ratio: 1440 / 3120;
  object-fit: cover;
  object-position: center top;
  background: #f3f6f5;
}
.screen-card figcaption {
  display: grid;
  gap: 8px;
  padding: 20px;
}
.screen-card strong {
  font-size: 1.1rem;
}
.screen-card span {
  font-size: 0.94rem;
}

.how-section {
  width: min(1100px, calc(100% - 48px));
  padding-top: 96px;
  padding-bottom: 34px;
}
.how-heading {
  max-width: none;
  gap: 0;
}
.how-heading h2 {
  color: var(--primary-deep);
  font-size: 3.1rem;
  line-height: 1.08;
}
.step-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 78px;
}
.step {
  position: relative;
  min-height: 178px;
  overflow: visible;
  padding: 74px 28px 28px;
  border-color: rgba(9, 88, 91, 0.1);
  box-shadow: 0 18px 34px rgba(15, 159, 152, 0.13), var(--shadow-card);
}
.step-icon {
  position: absolute;
  top: -56px;
  left: 50%;
  display: grid;
  place-items: center;
  width: 108px;
  height: 108px;
  background: transparent;
  box-shadow: none;
  transform: translateX(-50%);
}
.step-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.step h3 {
  color: var(--primary-deep);
  font-size: 1.22rem;
  line-height: 1.16;
  margin-bottom: 10px;
}
.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
}
.step-index {
  display: none;
}

.trust-band {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 34px;
  align-items: center;
  padding: 40px;
  border-radius: var(--radius-card);
  background: var(--primary-deep);
  color: #ffffff;
}
.trust-band h2,
.trust-band .section-kicker,
.trust-band .trust-item {
  color: #ffffff;
}
.trust-list {
  list-style: none;
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
}
.trust-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--accent-warm);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 70px 0 36px;
  color: var(--muted);
  font-size: 0.92rem;
}
.footer-meta {
  display: grid;
  gap: 10px;
}
.footer-company span {
  display: inline-flex;
  width: fit-content;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--primary-deep);
  font-weight: 800;
}

.page-wrap {
  padding-top: 86px;
  padding-bottom: 72px;
}
.page-card {
  max-width: 920px;
  padding: 44px;
  box-shadow: var(--shadow-card);
}
.page-card > * + * { margin-top: 18px; }
.page-card h1 { color: var(--primary-deep); }
.page-card h2 {
  margin-top: 34px;
  font-size: 1.45rem;
}
.page-card ul { padding-left: 20px; }

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible,
[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .container { width: min(100% - 36px, 1100px); }
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 82px;
  }
  .hero h1 { font-size: 3.7rem; }
  .hero-visual { min-height: 560px; }
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .helper-panel,
  .trust-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .main-nav { display: none; }
  .hero h1,
  .section-heading h2,
  .trust-band h2,
  .page-card h1 {
    font-size: 2.55rem;
  }
  .hero-copy > p,
  .section-heading p {
    font-size: 1.05rem;
  }
  .feature-grid,
  .helper-grid,
  .screen-grid,
  .step-row {
    grid-template-columns: 1fr;
  }
  .step-row {
    gap: 74px;
  }
  .phone-frame { width: 275px; }
  .lens-lines { inset: 60px 20px 62px 20px; }
  .section { padding-top: 78px; }
}

@media (max-width: 560px) {
  .container { width: min(100% - 24px, 1100px); }
  .site-header { padding-top: 14px; }
  .header-shell { gap: 14px; }
  .brand img { width: 34px; height: 34px; }
  .brand-copy strong { font-size: 1.1rem; }
  .lang-switcher button { padding: 8px 10px; }
  .hero {
    gap: 28px;
    padding-top: 58px;
  }
  .hero h1 {
    font-size: 2.32rem;
    line-height: 1.1;
  }
  .hero-visual {
    min-height: 430px;
  }
  .phone-frame {
    width: 220px;
    padding: 10px;
    border-radius: 32px;
  }
  .phone-frame img { border-radius: 24px; }
  .phone-frame::before { border-radius: 29px; }
  .phone-speaker {
    top: 16px;
    width: 58px;
    height: 16px;
  }
  .feature-card {
    min-height: auto;
    padding: 28px 22px;
  }
  .helper-panel,
  .trust-band,
  .page-card {
    padding: 24px;
  }
  .section-heading h2,
  .trust-band h2,
  .page-card h1 {
    font-size: 2.05rem;
  }
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}