*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --ink: #172033;
  --navy: #14213d;
  --blue: #1d4ed8;
  --teal: #0f766e;
  --action: #0f766e;
  --action-dark: #0b5e58;
  --steel: #334155;
  --gold: #d97706;
  --paper: #f4f8fb;
  --white: #ffffff;
  --line: #d7e1ea;
  --muted: #627084;
  --shadow: 0 22px 54px rgba(21, 32, 56, 0.16);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, #fbfdff 0, var(--paper) 520px, #fff 100%);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

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

img,
svg {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 76px;
  background: rgba(251, 253, 255, 0.9);
  border-bottom: 1px solid rgba(215, 225, 234, 0.9);
  backdrop-filter: blur(16px);
}

.header-inner {
  max-width: 1180px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 900;
  color: var(--navy);
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--navy);
  border-radius: 10px;
  font-size: 12px;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.14);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #405066;
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--blue);
}

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  border-radius: 8px;
  font-weight: 900;
  line-height: 1.2;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.header-cta {
  padding: 10px 18px;
  color: #fff;
  background: var(--action);
  font-size: 14px;
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.22);
}

.header-cta:hover,
.btn-primary:hover {
  transform: translateY(-1px);
  background: var(--action-dark);
}

.btn-primary {
  color: #fff;
  background: var(--action);
  padding: 16px 28px;
  box-shadow: 0 16px 34px rgba(15, 118, 110, 0.24);
}

.btn-secondary {
  color: var(--navy);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  padding: 15px 24px;
}

.btn-secondary:hover {
  transform: translateY(-1px);
  background: #fff;
}

.hero {
  position: relative;
  min-height: 650px;
  overflow: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 18%, rgba(15, 118, 110, 0.13), transparent 28%),
    radial-gradient(circle at 15% 20%, rgba(29, 78, 216, 0.12), transparent 30%),
    linear-gradient(135deg, #fbfdff 0%, #eef7fb 58%, #f9fbff 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(20, 33, 61, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 33, 61, 0.055) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
}

.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--line);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  min-height: 650px;
  margin: 0 auto;
  padding: 86px 24px 58px;
  display: grid;
  grid-template-columns: minmax(0, 560px) minmax(420px, 1fr);
  align-items: center;
  gap: 64px;
}

.hero-copy {
  padding: 12px 0;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 14px;
  font-weight: 900;
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  color: var(--navy);
  font-size: 52px;
  line-height: 1.16;
  font-weight: 900;
}

.hero-lead {
  max-width: 620px;
  margin: 24px 0 0;
  color: #43526a;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-note {
  margin: 18px 0 0;
  color: #6a7689;
  font-size: 13px;
}

.hero-visual {
  margin: 0;
  width: 100%;
}

.hero-visual img {
  width: 100%;
  max-width: 640px;
  margin-left: auto;
  filter: drop-shadow(0 26px 38px rgba(20, 33, 61, 0.16));
}

.notice-band {
  background: #eef7f6;
  border-top: 1px solid #d2ebe7;
  border-bottom: 1px solid #d2ebe7;
}

.notice-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: #17433f;
  font-size: 14px;
}

.notice-icon {
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--teal);
  font-weight: 900;
}

.section {
  padding: 88px 24px;
}

.section-white {
  background: #ffffff;
}

.section-dark {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(15, 118, 110, 0.14) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    #121a2c;
  background-size: 56px 56px;
}

.section-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.section-kicker {
  margin: 0 0 10px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
}

.section-dark .section-kicker {
  color: #a7f3d0;
}

.section-title {
  max-width: 740px;
  margin: 0;
  color: var(--navy);
  font-size: 36px;
  line-height: 1.24;
  font-weight: 900;
}

.section-dark .section-title {
  color: #fff;
}

.section-copy {
  max-width: 720px;
  margin: 16px 0 0;
  color: var(--muted);
}

.section-dark .section-copy {
  color: rgba(255, 255, 255, 0.72);
}

.trust-grid,
.feature-grid,
.proof-grid,
.faq-grid {
  display: grid;
  gap: 20px;
}

.trust-grid {
  grid-template-columns: repeat(4, 1fr);
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 40px;
}

.proof-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 38px;
}

.faq-grid {
  grid-template-columns: repeat(2, 1fr);
  margin-top: 36px;
}

.trust-card,
.feature-card,
.proof-card,
.faq-card,
.step-card,
.contact-card,
.legal-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.trust-card {
  min-height: 118px;
  padding: 22px;
  background:
    linear-gradient(180deg, #fff 0%, #f8fbfd 100%);
}

.trust-number {
  display: block;
  color: var(--blue);
  font-size: 30px;
  line-height: 1;
  font-weight: 900;
}

.trust-card span:last-child {
  display: block;
  margin-top: 10px;
  color: #475569;
  font-size: 13px;
  font-weight: 700;
}

.feature-card,
.proof-card,
.faq-card {
  padding: 28px;
  box-shadow: 0 10px 28px rgba(20, 33, 61, 0.05);
}

.icon-box {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  color: #fff;
  background: #0f766e;
}

.feature-card:nth-child(2) .icon-box,
.feature-card:nth-child(5) .icon-box {
  background: var(--blue);
}

.feature-card:nth-child(3) .icon-box,
.feature-card:nth-child(6) .icon-box {
  background: var(--steel);
}

.feature-card h3,
.proof-card h3,
.faq-card h3,
.step-card h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 18px;
  line-height: 1.45;
}

.feature-card p,
.proof-card p,
.faq-card p,
.step-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.data-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: 44px;
  align-items: center;
}

.data-board {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(8, 13, 22, 0.66);
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.board-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.7fr;
  gap: 12px;
  padding: 15px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.board-row:first-child {
  color: rgba(255, 255, 255, 0.54);
  font-size: 12px;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.04);
}

.board-row:last-child {
  border-bottom: 0;
}

.board-row strong {
  color: #fff;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 38px;
}

.step-card {
  padding: 28px;
  position: relative;
  background: linear-gradient(180deg, #fff 0%, #fbfdff 100%);
}

.step-index {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  color: #fff;
  background: var(--navy);
  font-weight: 900;
}

.quote-mark {
  color: var(--teal);
  font-size: 32px;
  line-height: 1;
  font-weight: 900;
}

.proof-card p {
  margin-top: 8px;
}

.proof-person {
  margin-top: 20px;
  color: #475569;
  font-size: 13px;
  font-weight: 700;
}

.cta-section {
  padding: 76px 24px;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.92), rgba(20, 33, 61, 0.96)),
    #14213d;
}

.cta-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
}

.cta-inner h2 {
  margin: 0;
  font-size: 34px;
  line-height: 1.28;
}

.cta-inner p {
  margin: 12px 0 0;
  color: rgba(255, 255, 255, 0.76);
}

.site-footer {
  padding: 46px 24px 38px;
  color: rgba(255, 255, 255, 0.62);
  background: #0c1220;
  font-size: 13px;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.site-footer .brand {
  color: #fff;
}

.footer-links a:hover {
  color: #fff;
}

.footer-meta {
  max-width: 940px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
  line-height: 1.9;
}

.footer-meta + .footer-meta {
  margin-top: 8px;
}

.page-hero {
  padding: 78px 24px;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 22%, rgba(15, 118, 110, 0.14), transparent 28%),
    linear-gradient(135deg, #fbfdff 0%, #eef7fb 100%);
  border-bottom: 1px solid var(--line);
}

.page-hero-inner {
  max-width: 980px;
  margin: 0 auto;
}

.page-hero h1 {
  margin: 0;
  color: var(--navy);
  font-size: 42px;
  line-height: 1.2;
}

.page-hero p {
  max-width: 620px;
  margin: 16px 0 0;
  color: var(--muted);
}

.contact-main,
.legal-main {
  max-width: 900px;
  margin: 0 auto;
  padding: 56px 24px 82px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 900;
}

.contact-card {
  padding: 30px;
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.08);
}

.info-list {
  display: grid;
  gap: 0;
}

.info-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.info-row:last-child {
  border-bottom: 0;
}

.info-label {
  color: #64748b;
  font-size: 13px;
  font-weight: 900;
}

.info-value {
  color: #27364a;
}

.email-button {
  width: 100%;
  margin-top: 24px;
}

.legal-box {
  margin-top: 22px;
  padding: 24px;
  background: #eef7f6;
  border-color: #d2ebe7;
}

.legal-box h2,
.legal-main h2 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 21px;
}

.legal-box p,
.legal-main p,
.legal-main li {
  color: #42526a;
  font-size: 15px;
}

.legal-main section {
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.legal-main ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

@media (max-width: 980px) {
  .hero-inner,
  .data-layout,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual img {
    max-width: 620px;
    margin: 10px auto 0;
  }

  .trust-grid,
  .feature-grid,
  .proof-grid,
  .faq-grid,
  .step-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .site-header {
    height: auto;
  }

  .header-inner {
    min-height: 64px;
    padding: 10px 18px;
  }

  .nav-links {
    display: none;
  }

  .brand span:last-child {
    font-size: 14px;
  }

  .header-cta {
    padding: 10px 12px;
  }

  .hero,
  .hero-inner {
    min-height: 560px;
  }

  .hero-inner {
    padding: 58px 18px 28px;
    align-items: center;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-visual img {
    max-width: 340px;
    margin: 10px auto 0;
  }

  .section {
    padding: 58px 18px;
  }

  .section-title,
  .cta-inner h2 {
    font-size: 28px;
  }

  .trust-grid,
  .feature-grid,
  .proof-grid,
  .faq-grid,
  .step-grid {
    grid-template-columns: 1fr;
  }

  .notice-inner {
    padding: 16px 18px;
  }

  .board-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .footer-top {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-hero {
    padding: 54px 18px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .contact-main,
  .legal-main {
    padding: 38px 18px 62px;
  }

  .contact-card {
    padding: 22px;
  }

  .info-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}