/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: #222;
  background: #fff;
  line-height: 1.8;
  font-size: 16px;
}

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid #e8e8e8;
  z-index: 100;
}

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

.logo {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 20px;
  color: #1a2744;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: #555;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.nav a:hover { color: #1a2744; }

/* ===== Hero ===== */
.hero {
  background: #1a2744;
  color: #fff;
  padding: 100px 0 96px;
}

.hero__inner { text-align: center; }

.hero__label {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #8fa3cc;
  margin-bottom: 20px;
}

.hero__title {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.3;
  margin-bottom: 24px;
}

.hero__sub {
  font-size: 16px;
  color: #b8c8e0;
  line-height: 1.9;
}

/* ===== Section ===== */
.section {
  padding: 80px 0;
}

.section--gray {
  background: #f5f7fa;
}

.section__title {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: #3d6af0;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section__lead {
  font-size: 16px;
  color: #444;
  line-height: 1.9;
  margin-bottom: 48px;
}

/* ===== About ===== */
.about__profile {
  border-left: 3px solid #1a2744;
  padding-left: 24px;
}

.about__profile h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #1a2744;
}

.about__profile p {
  font-size: 15px;
  color: #555;
  line-height: 1.9;
}

/* ===== Cards ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid #e0e4ef;
  border-radius: 8px;
  padding: 32px 28px;
}

.card__icon {
  font-size: 28px;
  margin-bottom: 16px;
}

.card__title {
  font-size: 16px;
  font-weight: 700;
  color: #1a2744;
  margin-bottom: 12px;
}

.card__text {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

/* ===== Company Table ===== */
.company-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.company-table tr {
  border-bottom: 1px solid #e8e8e8;
}

.company-table th {
  width: 160px;
  padding: 16px 0;
  font-weight: 500;
  color: #888;
  text-align: left;
  vertical-align: top;
}

.company-table td {
  padding: 16px 0;
  color: #333;
}

/* ===== Footer ===== */
.footer {
  background: #1a2744;
  color: #8fa3cc;
  padding: 40px 0;
}

.footer__inner {
  text-align: center;
}

.footer__logo {
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.footer__copy {
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .nav { display: none; }
  .hero { padding: 72px 0 64px; }
  .section { padding: 60px 0; }
  .company-table th { width: 100px; font-size: 13px; }
  .company-table td { font-size: 14px; }
}