:root {
  --navy: #071d2d;
  --ink: #0b2234;
  --line: #dfe7ed;
  --gold: #b88a55;
  --paper: #f8fbfd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
  letter-spacing: 0;
}

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

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  padding: 44px 64px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  min-width: 214px;
  color: var(--navy);
  font-size: 31px;
  font-weight: 700;
  letter-spacing: .19em;
}

.logo-mark {
  width: 48px;
  height: 48px;
  border: 1.8px solid var(--gold);
  border-radius: 50%;
  position: relative;
  overflow: hidden;
  flex: 0 0 auto;
}

.logo-mark::before,
.logo-mark::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  height: 10px;
  border: 1.5px solid var(--gold);
  border-color: var(--gold) transparent transparent transparent;
  border-radius: 50%;
}

.logo-mark::before {
  top: 19px;
}

.logo-mark::after {
  top: 26px;
}

.logo-wave {
  position: absolute;
  left: 9px;
  right: 9px;
  top: 31px;
  height: 1.5px;
  background: var(--gold);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 32px;
  color: #10283b;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 0 19px;
  border: 1px solid rgba(7, 29, 45, .35);
  border-radius: 999px;
  font-size: 12px;
}

.pill.dark {
  min-width: 112px;
  color: #fff;
  background: var(--navy);
  border-color: var(--navy);
}

.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #edf4f8;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.76) 40%, rgba(255,255,255,.12) 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 176px 64px 78px;
}

.breadcrumb {
  margin: 0 0 34px;
  color: #42596b;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 12px;
  font-weight: 700;
}

h1 {
  margin: 0;
  color: var(--navy);
  font-size: 48px;
  font-weight: 500;
  line-height: 1.75;
  letter-spacing: .1em;
}

.lead {
  max-width: 590px;
  margin: 28px 0 0;
  color: #24394b;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 14px;
  font-weight: 700;
  line-height: 2.1;
}

.section {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 64px;
}

.intro,
.content-band,
.flow,
.related {
  padding: 76px 0 84px;
}

.intro {
  background: #fff;
}

.content-band {
  background: linear-gradient(180deg, #f8fbfc, #edf4f7);
}

.section-title {
  margin: 0 0 30px;
  color: var(--navy);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: .08em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.feature {
  min-height: 180px;
  padding: 30px 24px;
  border: 1px solid var(--line);
  background: #fff;
}

.feature-icon {
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  color: var(--gold);
}

.icon-stroke {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature h3,
.solution h3,
.step h3,
.related-card h3 {
  margin: 0 0 12px;
  color: var(--navy);
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.7;
}

.feature p,
.solution p,
.step p,
.related-card p,
.intro-copy {
  margin: 0;
  color: #24394b;
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 13px;
  font-weight: 600;
  line-height: 2;
}

.intro-copy {
  max-width: 760px;
  margin-bottom: 42px;
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.solution {
  padding: 34px 34px 36px;
  border: 1px solid var(--line);
  background: #fff;
}

.chart {
  height: 220px;
  display: flex;
  align-items: end;
  gap: 14px;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--line);
}

.bar {
  flex: 1;
  min-width: 12px;
  background: linear-gradient(180deg, #5e95bb, #dcebf3);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.step {
  padding: 28px 24px;
  border-top: 1px solid var(--line);
}

.step-number {
  display: block;
  margin-bottom: 14px;
  color: var(--gold);
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 12px;
  font-weight: 800;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.related-card {
  min-height: 148px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  background: #fff;
}

.related-card::after {
  content: "→";
  display: block;
  margin-top: 18px;
  color: var(--gold);
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  font-weight: 800;
}

.site-footer {
  color: #fff;
  background:
    radial-gradient(circle at 15% 0, rgba(29,91,118,.48), transparent 34%),
    linear-gradient(105deg, #061a29, #071f31 55%, #08263b);
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.12fr .82fr .9fr .64fr .76fr 1fr;
  gap: 40px;
  max-width: 1220px;
  margin: 0 auto;
  padding: 42px 64px 48px;
}

.footer-logo {
  color: #fff;
  margin-bottom: 26px;
}

.footer-address,
.footer-nav {
  margin: 0;
  color: rgba(255,255,255,.78);
  font-size: 11px;
  font-weight: 600;
  line-height: 2.05;
}

.footer-copy {
  max-width: 1220px;
  margin: 0 auto;
  padding: 16px 64px 18px;
  border-top: 1px solid rgba(255,255,255,.16);
  color: rgba(255,255,255,.72);
  text-align: center;
  font-size: 11px;
}

.footer-col h4 {
  margin: 8px 0 18px;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.footer-nav {
  list-style: none;
  padding: 0;
}

@media (max-width: 980px) {
  .site-header {
    padding: 28px 24px 0;
  }

  .nav {
    display: none;
  }

  .hero-inner,
  .section {
    padding-left: 24px;
    padding-right: 24px;
  }

  h1 {
    font-size: 36px;
  }

  .feature-grid,
  .solution-grid,
  .flow-grid,
  .related-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: 560px;
  }

  .hero-inner {
    padding-top: 142px;
  }

  .footer-inner {
    gap: 22px;
    padding: 30px 28px 34px;
  }

  .footer-logo {
    margin-bottom: 16px;
  }

  .footer-address,
  .footer-nav {
    line-height: 1.75;
  }

  .footer-copy {
    padding: 14px 28px 18px;
  }

  .footer-col h4 {
    margin: 0 0 8px;
  }
}