:root {
  color-scheme: light;
  --bg: #fbf9ff;
  --surface: #ffffff;
  --surface-soft: #f5efff;
  --text: #24193a;
  --muted: #6d617d;
  --line: #e8ddf7;
  --primary: #5a269f;
  --primary-deep: #3d1377;
  --primary-soft: #efe6ff;
  --accent: #2f8f8a;
  --shadow: 0 24px 60px rgba(61, 19, 119, 0.1);
  --shadow-soft: 0 12px 34px rgba(61, 19, 119, 0.08);
  font-family: "Inter", "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(115deg, rgba(239, 230, 255, 0.78) 0 22rem, transparent 22rem),
    linear-gradient(245deg, rgba(230, 246, 244, 0.7) 0 18rem, transparent 18rem),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 44%, #ffffff 100%);
  color: var(--text);
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(232, 221, 247, 0.75);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-deep);
  font-size: 15px;
  font-weight: 900;
}

.brand__mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 8px;
  background: var(--primary-deep);
  box-shadow: 0 10px 22px rgba(61, 19, 119, 0.2);
  overflow: hidden;
}

.brand__mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  flex-wrap: wrap;
}

.site-nav a {
  border-radius: 999px;
  padding: 9px 12px;
}

.site-nav a:hover {
  background: var(--primary-soft);
  color: var(--primary-deep);
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 42px;
  align-items: center;
  min-height: calc(100vh - 74px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #201034;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero__lead,
.section-heading p,
.panel p,
.panel li,
.cta-panel p {
  color: var(--muted);
  line-height: 1.9;
}

.hero__lead {
  margin: 24px 0 0;
  font-size: clamp(17px, 2vw, 21px);
}

.hero__actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
  font-weight: 800;
  padding: 13px 20px;
}

.button--secondary {
  background: #fff;
  color: var(--primary-deep);
}

.hero-panel,
.panel,
.cta-panel {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 28px;
}

.hero-panel h2,
.panel h3,
.cta-panel h2 {
  margin: 0 0 12px;
  color: var(--primary-deep);
}

.section-heading {
  display: grid;
  gap: 14px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.2;
}

.feature-grid,
.flow-grid {
  display: grid;
  gap: 18px;
}

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

.flow-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.panel,
.cta-panel {
  padding: 24px;
}

.panel ul {
  padding-left: 18px;
  margin: 0;
}

.step-index {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-deep);
  font-weight: 900;
  margin-bottom: 16px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 40px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 960px) {
  .hero,
  .feature-grid,
  .flow-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section {
    width: min(100% - 28px, 1120px);
    padding: 68px 0;
  }

  .site-header {
    padding-inline: 16px;
  }

  .site-nav {
    gap: 4px;
    justify-content: flex-end;
  }

  .site-nav a {
    padding: 8px 10px;
    font-size: 13px;
  }

  .button {
    width: 100%;
  }
}