:root {
  color-scheme: light;
  --bg: #f6f7f1;
  --ink: #1b1b21;
  --muted: #5a5f6a;
  --purple: #b6a9cc;
  --purple-strong: #9686ac;
  --green: #9dcfc8;
  --green-strong: #78b8af;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.8;
}

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

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

.page-glow {
  position: fixed;
  inset: 0;
  background: radial-gradient(
      circle at 10% 10%,
      rgba(182, 169, 204, 0.35),
      transparent 45%
    ),
    radial-gradient(circle at 90% 5%, rgba(157, 207, 200, 0.35), transparent 40%),
    radial-gradient(circle at 50% 90%, rgba(182, 169, 204, 0.25), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  width: min(1120px, 90vw);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(246, 247, 241, 0.85);
  border-bottom: 1px solid rgba(150, 134, 172, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 24px;
  flex-wrap: wrap;
}

.logo-wrap {
  display: grid;
  gap: 6px;
  align-items: center;
}

.logo-type {
  width: min(200px, 42vw);
  height: auto;
}

.logo-note {
  font-size: 12px;
  color: var(--muted);
}

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

.header-nav a {
  position: relative;
  padding-bottom: 4px;
}

.header-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--purple-strong), var(--green-strong));
  transition: width 0.2s ease;
}

.header-nav a:hover::after {
  width: 100%;
}

.hero {
  padding: 96px 0 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: 48px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 12px;
}

.hero-copy h1 {
  font-size: clamp(32px, 4vw, 48px);
  margin-bottom: 16px;
}

.lead {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 16px;
}

.sub-lead {
  font-size: 15px;
  color: var(--muted);
}

.hero-card {
  background: linear-gradient(140deg, rgba(182, 169, 204, 0.2), rgba(157, 207, 200, 0.2));
  border-radius: 24px;
  padding: 24px;
  border: 1px solid rgba(150, 134, 172, 0.2);
  box-shadow: 0 24px 60px rgba(150, 134, 172, 0.15);
}

.hero-image {
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(150, 134, 172, 0.2);
  background: var(--white);
  padding: 12px;
}

.section {
  padding: 80px 0;
}

.section-muted {
  background: rgba(182, 169, 204, 0.08);
}

.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: clamp(24px, 3vw, 36px);
}

.section-body {
  display: grid;
  gap: 18px;
  color: var(--muted);
}

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

.card {
  background: var(--white);
  border-radius: 20px;
  padding: 32px;
  border: 1px solid rgba(120, 184, 175, 0.2);
  box-shadow: 0 16px 40px rgba(27, 27, 33, 0.08);
  display: grid;
  gap: 18px;
}

.card h3 {
  font-size: 18px;
}

.card ul {
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 8px;
}

.feature-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.feature-list li {
  position: relative;
  padding-left: 20px;
}

.feature-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--purple-strong);
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.split-block {
  background: rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(150, 134, 172, 0.15);
  display: grid;
  gap: 14px;
}

.split-image {
  width: 100%;
  max-width: 320px;
  justify-self: center;
  margin-top: 8px;
  border-radius: 14px;
  border: 1px solid rgba(150, 134, 172, 0.24);
}

.section-body-wide {
  margin-bottom: 32px;
}

.muted-note {
  color: var(--muted);
  font-size: 14px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.catalog-toggle {
  width: 100%;
  margin-bottom: 20px;
  border-radius: 16px;
  border: 1px solid rgba(150, 134, 172, 0.35);
  background: var(--white);
  padding: 16px 20px;
  text-align: left;
  font-size: 15px;
  font-family: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.catalog-toggle:hover,
.catalog-toggle:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(150, 134, 172, 0.55);
  box-shadow: 0 12px 26px rgba(27, 27, 33, 0.1);
}

.catalog-card {
  background: var(--white);
  border-radius: 18px;
  padding: 22px;
  border: 1px solid rgba(120, 184, 175, 0.18);
  box-shadow: 0 14px 32px rgba(27, 27, 33, 0.08);
  display: grid;
  gap: 10px;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  color: inherit;
}

.catalog-card:hover,
.catalog-card:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(150, 134, 172, 0.45);
  box-shadow: 0 20px 36px rgba(27, 27, 33, 0.12);
}

.catalog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.catalog-header h3 {
  font-size: 16px;
}

.badge {
  background: rgba(150, 134, 172, 0.15);
  color: var(--purple-strong);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.badge-data {
  background: rgba(120, 184, 175, 0.18);
  color: var(--green-strong);
}

.badge-utility {
  background: rgba(27, 27, 33, 0.08);
  color: var(--muted);
}

.accent {
  color: var(--purple-strong);
  font-weight: 500;
}

.message-signature {
  font-weight: 600;
  color: var(--ink);
}

.contact-cta {
  display: grid;
  gap: 24px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--purple-strong), var(--green-strong));
  color: var(--white);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.contact-button:hover,
.contact-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(27, 27, 33, 0.18);
}

.site-footer {
  border-top: 1px solid rgba(120, 184, 175, 0.25);
  padding: 32px 0 48px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-weight: 600;
}

.footer-note {
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 16px;
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding-top: 72px;
  }
}