* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", Arial, sans-serif;
  background: #f5f7fb;
  color: #111827;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero {
  padding: 64px 0 28px;
  background: linear-gradient(180deg, #eef4ff 0%, #f5f7fb 100%);
}

.hero__inner {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  padding: 0 20px;
}

.hero__eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #2457ff;
}

.hero__title {
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.2;
  font-weight: 800;
}

.hero__desc {
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  color: #4b5563;
}

.device-content {
  padding: 24px 0 24px;
}

.faq-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
  padding: 32px;
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(17, 24, 39, 0.08);
}

.faq-badge {
  display: inline-block;
  margin: 0 0 14px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eef4ff;
  color: #2457ff;
  font-size: 13px;
  font-weight: 700;
}

.faq-copy h2 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.3;
}

.faq-text {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.8;
  color: #4b5563;
}

.steps {
  margin: 0 0 24px;
  padding-left: 20px;
  color: #374151;
  line-height: 1.9;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
}

.btn--primary {
  background: #111827;
  color: #fff;
}

.faq-visual img {
  border-radius: 20px;
  border: 1px solid #e5e7eb;
  background: #fff;
}

.common-info {
  padding: 0 0 48px;
}

.common-card {
  padding: 28px;
  border-radius: 24px;
  background: #fff;
  border: 1px solid #e8edf4;
}

.common-card h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

.common-card ul {
  margin: 0;
  padding-left: 20px;
  color: #4b5563;
  line-height: 1.9;
}

.footer {
  padding: 0 0 40px;
}

.footer p {
  margin: 0;
  text-align: center;
  color: #6b7280;
  font-size: 14px;
}

@media (max-width: 860px) {
  .hero {
    padding-top: 48px;
  }

  .hero__title {
    font-size: 32px;
  }

  .faq-card {
    grid-template-columns: 1fr;
    padding: 24px;
    border-radius: 22px;
  }

  .faq-copy h2 {
    font-size: 24px;
  }
}