:root {
  --bg: #f4f6f6;
  --text: #1f2933;
  --muted: #5f6c76;
  --primary: #035c67;
  --primary-strong: #024750;
  --card: #ffffff;
  --line: #d6dee2;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(244, 246, 246, 0.86);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--primary);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

.nav-links {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-size: 14px;
}

.hero {
  padding: 64px 0 38px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 10px;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--primary);
  background: #dff1f3;
  font-size: 12px;
  font-weight: 700;
}

h1 {
  margin: 0;
  line-height: 1.15;
  font-size: clamp(30px, 4.6vw, 52px);
}

.hero-desc {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.7;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 24px 0 0;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-strong);
}

.btn-outline {
  color: var(--primary);
  border-color: var(--primary);
  background: transparent;
}

.hero-points {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.hero-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 14px;
  box-shadow: 0 12px 34px rgba(3, 92, 103, 0.08);
}

.card-header {
  display: flex;
  gap: 8px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ced8dd;
}

.scan-box {
  margin-top: 12px;
  height: 280px;
  border-radius: 16px;
  border: 1px solid #d6e4e8;
  background: linear-gradient(180deg, #f7fbfc 0%, #eef6f7 100%);
  position: relative;
  overflow: hidden;
}

.scan-line {
  position: absolute;
  left: 16px;
  right: 16px;
  top: 12%;
  height: 2px;
  background: #17a7ba;
  box-shadow: 0 0 12px rgba(23, 167, 186, 0.7);
}

.hero-card-text {
  margin: 14px 2px 4px;
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 54px 0;
}

.section-alt {
  background: #ebf2f4;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

h2 {
  margin: 0 0 22px;
  font-size: clamp(24px, 3vw, 36px);
}

.section-desc {
  margin: -8px 0 18px;
  color: var(--muted);
  line-height: 1.7;
}

.poster-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.poster-item {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 18px rgba(3, 92, 103, 0.08);
}

.poster-item img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  display: block;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-item {
  padding: 18px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--line);
}

.feature-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.feature-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.step {
  padding: 20px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
}

.step-index {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
}

.step h3 {
  margin: 10px 0 8px;
  font-size: 18px;
}

.step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.faq-list {
  display: grid;
  gap: 10px;
}

details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
}

summary {
  cursor: pointer;
  font-weight: 600;
}

details p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.cta-section {
  padding-top: 20px;
}

.cta-wrap {
  text-align: center;
  padding: 34px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}

.cta-wrap p {
  color: var(--muted);
  margin: 10px 0 20px;
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

.footer-wrap {
  min-height: 62px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 980px) {
  .poster-grid {
    grid-template-columns: 1fr 1fr;
  }

  .feature-grid,
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .feature-grid,
  .poster-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .footer-wrap {
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    padding: 14px 0;
  }
}