:root {
  --color-background: #f6f7fb;
  --color-surface: #ffffff;
  --color-primary: #1a73e8;
  --color-secondary: #0f9d58;
  --color-text: #1f2a44;
  --color-muted: #6c7a92;
  --color-border: #d7dce6;
  --max-width: 1200px;
  --font-family: 'Noto Sans JP', system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', sans-serif;
  --shadow-soft: 0 18px 40px rgba(31, 42, 68, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.7;
  letter-spacing: 0.02em;
}

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

.container {
  width: min(90%, var(--max-width));
  margin: 0 auto;
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.topnav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}

.logo {
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.topnav__menu {
  display: flex;
  align-items: center;
  gap: 18px;
}

.topnav__menu a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
}

.topnav__cta {
  padding: 10px 18px;
}

.hero {
  background: linear-gradient(135deg, #e9f2ff 0%, #f9faff 100%);
  padding: 80px 0;
}

.hero__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.hero__text h1 {
  font-size: clamp(2rem, 3.2vw + 1rem, 3.2rem);
  margin-bottom: 16px;
}

.hero__text p {
  margin-bottom: 20px;
  color: var(--color-muted);
}

.hero__card {
  background: var(--color-surface);
  padding: 32px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}

.hero__photo {
  padding: 0;
  overflow: hidden;
}

.hero__photo img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 18px;
}

.hero__card h2 {
  margin-top: 0;
}

.hero__card ul {
  padding-left: 20px;
  margin: 16px 0 0;
  color: var(--color-muted);
}

.badge {
  display: inline-block;
  background: rgba(26, 115, 232, 0.1);
  color: var(--color-primary);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button--primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(26, 115, 232, 0.25);
}

.button--line {
  background-color: var(--color-secondary);
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(15, 157, 88, 0.25);
  white-space: nowrap;
}

.button:hover {
  transform: translateY(-2px);
}

.note {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.section {
  padding: 80px 0;
}

.section--light {
  background-color: #ffffff;
}

.section--testimonial {
  background: linear-gradient(135deg, #f0f4ff 0%, #f7faff 100%);
}

.grid {
  display: grid;
  gap: 32px;
}

.grid--2col {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid--3col {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card,
.info-card {
  background: var(--color-surface);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow-soft);
}
.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: center;
}

.lead {
  color: var(--color-muted);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--color-surface);
  padding: 14px 16px;
  border-radius: 14px;
  box-shadow: var(--shadow-soft);
}

.icon-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--color-primary);
  margin-top: 8px;
  flex: 0 0 auto;
}

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.tile {
  background: var(--color-surface);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.tile--number .tile__num {
  font-weight: 800;
  font-size: 2.2rem;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
}

.timeline__item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 14px;
  align-items: start;
}

.timeline__dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--color-primary);
  position: relative;
  margin-top: 8px;
}

.timeline__item:not(:last-child) .timeline__dot::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 6px;
  width: 2px;
  height: calc(100% + 18px);
  background: var(--color-border);
}

.section--line {
  background: linear-gradient(135deg, #e8fff2 0%, #f7fffb 100%);
}

.center {
  text-align: center;
  max-width: 840px;
}

.line-badge {
  display: inline-block;
  background: rgba(15, 157, 88, 0.12);
  color: var(--color-secondary);
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 10px;
}

.cards-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card--quote {
  position: relative;
}

.card--quote p::before {
  content: "\201C";
  font-size: 2.2rem;
  color: var(--color-primary);
  margin-right: 6px;
}

.faq--grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.notice {
  background: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  padding: 16px 24px;
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
}

.notice ol {
  margin: 0;
  padding-left: 22px;
  color: var(--color-muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.step {
  background: var(--color-surface);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

.pill {
  display: inline-block;
  background: rgba(26, 115, 232, 0.1);
  color: var(--color-primary);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.card ul,
.info-card ul {
  padding-left: 18px;
  color: var(--color-muted);
}

.checklist li::marker {
  color: var(--color-primary);
}

.line-module {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: #ffffff;
  padding: 36px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}

.line-module__content {
  max-width: 640px;
}

.testimonial {
  margin: 0;
  padding: 28px;
  background: #ffffff;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
  color: var(--color-text);
  font-style: normal;
}

.testimonial cite {
  display: block;
  margin-top: 16px;
  font-style: normal;
  color: var(--color-muted);
}

.faq details {
  background: var(--color-surface);
  border-radius: 16px;
  margin-bottom: 18px;
  padding: 18px 24px;
  box-shadow: var(--shadow-soft);
}

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

.faq p {
  margin: 12px 0 0;
  color: var(--color-muted);
}

.footer {
  background: #101426;
  color: rgba(255, 255, 255, 0.85);
  padding-top: 48px;
}

.footer__content {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  padding-bottom: 40px;
}

.footer__title {
  font-weight: 600;
  margin-bottom: 12px;
}

.footer__link {
  color: #ffffff;
  text-decoration: underline;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  text-align: center;
}

@media (max-width: 640px) {
  .hero {
    padding: 60px 0;
  }

  .section {
    padding: 60px 0;
  }

  .line-module {
    align-items: flex-start;
  }

  .button {
    width: 100%;
  }
}