:root {
  --navy: #17384f;
  --deep: #102c3e;
  --ink: #25343e;
  --muted: #6c797f;
  --cream: #f8f5ee;
  --paper: #fffdf8;
  --sage: #9eafa0;
  --sand: #eadcca;
  --line: rgba(23, 56, 79, 0.13);
  --shadow: 0 22px 60px rgba(20, 48, 67, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--cream);
  color: var(--ink);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.035em;
  -webkit-font-smoothing: antialiased;
}

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

.site {
  min-height: 100vh;
  overflow: hidden;
  position: relative;
}

.site::before {
  content: "";
  position: absolute;
  top: -260px;
  right: -220px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(234, 220, 202, 0.82) 0%, rgba(234, 220, 202, 0) 70%);
  pointer-events: none;
}

.shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  position: relative;
}

header {
  height: 108px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand img {
  display: block;
  width: 222px;
  height: auto;
}

.language {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px;
  background: rgba(255, 253, 248, 0.65);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.language span,
.language a {
  display: block;
  padding: 6px 13px;
  border-radius: 999px;
}

.language span {
  background: var(--navy);
  color: #fff;
}

.language a {
  color: var(--navy);
  transition: 0.2s ease;
}

.language a:hover {
  background: #fff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(310px, 0.82fr);
  gap: 70px;
  align-items: center;
  padding: 104px 0 96px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: 30px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 0 6px rgba(158, 175, 160, 0.16);
}

h1 {
  font-family: "Noto Serif JP", serif;
  color: var(--deep);
  font-size: clamp(38px, 5.2vw, 64px);
  line-height: 1.38;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.hero-copy {
  max-width: 650px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 16px;
  line-height: 2.05;
}

.hero-copy strong {
  color: var(--ink);
  font-weight: 600;
}

.note {
  position: relative;
  overflow: hidden;
  background: linear-gradient(150deg, var(--navy), var(--deep));
  color: #fff;
  border-radius: 30px;
  padding: 42px 40px 38px;
  box-shadow: var(--shadow);
}

.note::before,
.note::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.13);
}

.note::before {
  width: 190px;
  height: 190px;
  right: -74px;
  top: -78px;
}

.note::after {
  width: 128px;
  height: 128px;
  right: -28px;
  top: -28px;
}

.note-label {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.note h2 {
  position: relative;
  margin-top: 28px;
  font-family: "Noto Serif JP", serif;
  font-size: 27px;
  line-height: 1.55;
  letter-spacing: 0.05em;
}

.note p {
  position: relative;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 14px;
  line-height: 1.9;
}

.note-foot {
  position: relative;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.62);
}

.section {
  padding: 88px 0;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 36px;
}

.section-kicker {
  color: var(--sage);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section h2 {
  font-family: "Noto Serif JP", serif;
  color: var(--deep);
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.5;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.section-intro {
  max-width: 460px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.value {
  background: rgba(255, 253, 248, 0.72);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 32px 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.value:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(20, 48, 67, 0.08);
}

.value-number {
  color: var(--sage);
  font-family: "Noto Serif JP", serif;
  font-size: 13px;
  letter-spacing: 0.15em;
}

.value h3 {
  margin-top: 18px;
  color: var(--deep);
  font-size: 17px;
  letter-spacing: 0.05em;
}

.value p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}

.company-wrap {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 30px;
  box-shadow: 0 18px 50px rgba(20, 48, 67, 0.06);
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 60px;
  padding: 58px 62px;
}

.company-copy p {
  margin-top: 20px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

dl {
  border-top: 1px solid var(--line);
}

.row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

dd {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.75;
}

dd a {
  color: var(--navy);
  border-bottom: 1px solid rgba(23, 56, 79, 0.28);
}

footer {
  margin-top: 88px;
  border-top: 1px solid var(--line);
  padding: 34px 0 46px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}

.footer-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.footer-links a:hover {
  color: var(--navy);
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 36px, 680px);
  }

  header {
    height: 92px;
  }

  .brand img {
    width: 190px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 44px;
    padding: 76px 0 70px;
  }

  .hero-copy {
    max-width: 600px;
  }

  .note {
    max-width: 560px;
  }

  .section {
    padding: 70px 0;
  }

  .section-heading {
    display: block;
  }

  .section-intro {
    margin-top: 16px;
  }

  .values {
    grid-template-columns: 1fr;
  }

  .company-wrap {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 42px 34px;
  }
}

@media (max-width: 520px) {
  .shell {
    width: calc(100% - 28px);
  }

  header {
    height: 84px;
  }

  .brand img {
    width: 166px;
  }

  .language {
    font-size: 10px;
    gap: 2px;
  }

  .language span,
  .language a {
    padding: 5px 8px;
  }

  .hero {
    padding: 62px 0 58px;
  }

  h1 {
    font-size: 35px;
    line-height: 1.47;
  }

  .hero-copy {
    font-size: 14px;
  }

  .note {
    padding: 34px 27px;
    border-radius: 24px;
  }

  .note h2 {
    font-size: 23px;
  }

  .section {
    padding: 58px 0;
  }

  .section h2 {
    font-size: 28px;
  }

  .value {
    padding: 27px 24px;
  }

  .company-wrap {
    padding: 34px 24px;
    border-radius: 24px;
  }

  .row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 15px 0;
  }

  footer {
    margin-top: 62px;
    display: block;
    line-height: 1.9;
  }

  .footer-links {
    margin-top: 14px;
    flex-wrap: wrap;
    gap: 16px;
  }
}