:root {
  --navy: #1B2A4A;
  --navy-2: #253B66;
  --gold: #C9A84C;
  --gold-soft: #F7F1DF;
  --bg: #F6F8FC;
  --card: #FFFFFF;
  --text: #243247;
  --muted: #637089;
  --line: #E4E9F1;
  --shadow: 0 18px 40px rgba(27, 42, 74, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 36px;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand {
  font-weight: 800;
  color: var(--navy);
  letter-spacing: .03em;
  white-space: nowrap;
}
.nav {
  margin-left: auto;
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
}
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 138px;
  height: 42px;
  padding: 0 18px;
  color: #fff;
  background: var(--gold);
  border-radius: 8px;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(201,168,76,.25);
}
.menu-button {
  display: none;
  border: 0;
  background: var(--navy);
  color: white;
  border-radius: 8px;
  width: 42px;
  height: 38px;
  font-size: 20px;
}
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0D1D36 0%, var(--navy) 56%, #233A64 100%);
  color: #fff;
  padding: 82px 0 88px;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: rgba(255,255,255,.07);
}
.hero::before { width: 420px; height: 420px; right: -90px; top: -130px; }
.hero::after { width: 260px; height: 260px; left: -90px; bottom: -100px; }
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 470px;
  gap: 58px;
  align-items: center;
}
.eyebrow,
.label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: var(--gold);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .08em;
}
.hero-lead {
  display: inline-block;
  margin: 0 0 16px;
  padding: 7px 14px;
  color: var(--gold);
  background: rgba(255,255,255,.08);
  border-left: 3px solid var(--gold);
  font-weight: 800;
}
.hero h1,
.final-cta h2 {
  margin: 0;
  font-size: clamp(28px, 2.6vw, 44px);
  line-height: 1.25;
  letter-spacing: .02em;
}
.hero-text {
  max-width: 620px;
  margin: 26px 0 28px;
  color: rgba(255,255,255,.88);
  font-size: 17px;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 14px 24px;
  border-radius: 10px;
  font-weight: 900;
  transition: transform .2s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button.primary {
  color: var(--navy);
  background: var(--gold);
  box-shadow: 0 12px 24px rgba(201,168,76,.28);
}
.button.secondary {
  color: var(--navy);
  background: #fff;
}
.button.large { min-width: min(100%, 360px); }
.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}
.trust-list li {
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 999px;
  padding: 9px 15px;
  color: rgba(255,255,255,.9);
  font-weight: 700;
  font-size: 14px;
}
.hero-card {
  position: relative;
  overflow: hidden;
  padding: 16px;
  background: rgba(255,255,255,.96);
  border-radius: 28px;
  box-shadow: 0 30px 60px rgba(0,0,0,.22);
}
.hero-card img {
  width: 100%;
  height: clamp(240px, 30vw, 410px);
  object-fit: cover;
  border-radius: 22px;
}
.hero-note {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}
.hero-note span {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 46px;
  color: var(--navy);
  background: var(--gold-soft);
  border-radius: 14px;
  font-weight: 800;
}
.section {
  padding: 88px 0;
}
.section-head {
  margin-bottom: 34px;
}
.section-head.split {
  display: grid;
  grid-template-columns: .82fr 1fr;
  gap: 50px;
  align-items: end;
}
.section-head.center {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 40px;
}
h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(22px, 2.2vw, 34px);
  line-height: 1.45;
}
h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.45;
}
.section-head p,
.section-description {
  margin: 0;
  color: var(--muted);
}
.problem {
  background: #fff;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.problem-card {
  min-height: 250px;
  padding: 28px 24px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.icon,
.reason-icon {
  display: inline-grid;
  place-items: center;
  width: 50px;
  height: 50px;
  margin-bottom: 18px;
  color: var(--navy);
  background: var(--gold-soft);
  border: 1px solid var(--gold);
  border-radius: 50%;
  font-weight: 900;
}
.problem-card p,
.reason-grid p,
.service-card p,
.flow-list p,
.faq-list p,
.voice-box p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.solution {
  background: linear-gradient(180deg, var(--navy), #13243F);
  color: #fff;
}
.solution-grid {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 56px;
  align-items: center;
}
.solution h2 { color: #fff; }
.solution-copy p:not(.label) { color: rgba(255,255,255,.82); }
.solution-image {
  border-radius: 26px;
  box-shadow: 0 24px 50px rgba(0,0,0,.24);
}
.mini-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 26px;
}
.mini-cards span {
  padding: 14px 16px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 14px;
  color: #fff;
  font-weight: 800;
}
.reason-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.reason-grid article {
  padding: 30px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}
.service {
  background: #fff;
}
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.service-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-top: 4px solid var(--navy);
  border-radius: 24px;
  box-shadow: var(--shadow);
}
.service-card img {
  display: none;
}
.service-body {
  position: relative;
  padding: 32px 30px 30px;
}
.number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 14px;
  color: #fff;
  background: var(--navy);
  border-radius: 50%;
  font-weight: 900;
}
.service-body ul {
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}
.service-body li {
  position: relative;
  padding-left: 24px;
  margin-top: 9px;
}
.service-body li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 900;
}
.voice {
  background: linear-gradient(180deg, #F6F8FC, #fff);
}
.voice-box {
  padding: 30px;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.price-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 46px;
  align-items: center;
}
.price-grid img {
  border-radius: 26px;
  box-shadow: var(--shadow);
}
.price-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 30px;
}
.price-cards article {
  padding: 24px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.price-cards h3 {
  font-size: 16px;
}
.price-cards strong {
  display: block;
  color: var(--navy);
  font-size: 28px;
  line-height: 1.2;
}
.price-cards span {
  color: var(--muted);
  font-size: 13px;
}
.flow {
  background: #fff;
}
.flow-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.flow-list li {
  position: relative;
  padding: 26px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}
.flow-list span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  margin-bottom: 16px;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--navy);
  border-radius: 50%;
  font-weight: 900;
}
.flow-list strong {
  display: block;
  color: var(--navy);
  line-height: 1.5;
  margin-bottom: 8px;
}
.faq-list {
  display: grid;
  gap: 14px;
}
.faq-list details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.faq-list summary {
  cursor: pointer;
  padding: 20px 24px;
  color: var(--navy);
  font-weight: 900;
}
.faq-list p {
  padding: 0 24px 22px;
}
.final-cta {
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy), #0F203B);
  color: #fff;
  padding: 78px 0;
}
.final-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 54px;
  align-items: center;
}
.final-grid img {
  width: 100%;
  height: clamp(180px, 20vw, 250px);
  object-fit: cover;
  border-radius: 24px;
  box-shadow: 0 22px 46px rgba(0,0,0,.26);
}
.final-cta p:not(.eyebrow) {
  color: rgba(255,255,255,.84);
  max-width: 720px;
}
.final-cta small {
  display: block;
  margin-top: 14px;
  color: rgba(255,255,255,.68);
}
.site-footer {
  padding: 28px 0;
  background: #0D1D36;
  color: rgba(255,255,255,.76);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}
/* ヘッダー高さ分スクロール位置をずらしてコンテンツが隠れないように */
section[id], .final-cta[id] {
  scroll-margin-top: 80px;
}

.sp-only { display: none; }

@media (max-width: 900px) {
  .solution-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1040px) {
  .nav { display: none; }
  .menu-button { display: inline-grid; place-items: center; }
  .site-header.menu-open .nav {
    position: absolute;
    display: grid;
    top: 72px;
    left: 0;
    right: 0;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }
  .site-header.menu-open .nav a {
    padding: 14px 24px;
    border-top: 1px solid var(--line);
  }
  .hero-grid,
  .solution-grid,
  .price-grid,
  .final-grid {
    grid-template-columns: 1fr;
  }
  .hero-card {
    max-width: 560px;
  }
  .problem-grid,
  .reason-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .site-header {
    height: 64px;
    padding: 0 18px;
  }
  .header-cta { display: none; }
  .brand { font-size: 15px; }
  .hero {
    padding: 56px 0 64px;
  }
  .hero h1,
  .final-cta h2 {
    font-size: clamp(26px, 7vw, 34px);
  }
  .hero-card img {
    height: 300px;
  }
  .section {
    padding: 62px 0;
  }
  .section-head.split,
  .service-grid,
  .problem-grid,
  .reason-grid,
  .price-cards,
  .flow-list {
    grid-template-columns: 1fr;
  }
  .final-grid {
    gap: 28px;
  }
  .cta-row .button {
    width: 100%;
  }
  .sp-only { display: inline; }
  .footer-inner {
    flex-direction: column;
  }
}