:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7fb;
  --color-text: #1f2937;
  --color-muted: #5b6473;
  --color-border: #d8e0eb;
  --color-navy: #0f1f3d;
  --color-navy-2: #162b52;
  --color-gold: #c59a3d;
  --color-blue: #2b63d9;
  --color-white: #ffffff;
  --shadow-soft: 0 18px 40px rgba(15, 31, 61, 0.08);
  --shadow-header: 0 8px 24px rgba(15, 31, 61, 0.08);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
  --transition: 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

button,
a.btn {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 32px), 920px);
}

.section {
  padding: 88px 0;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-dark {
  background: linear-gradient(180deg, var(--color-navy) 0%, #081427 100%);
  color: var(--color-white);
}

.section-head {
  margin-bottom: 36px;
}

.section-head.centered {
  text-align: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--color-blue);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.section-dark .eyebrow,
.final-cta .eyebrow {
  color: #9ac0ff;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.35;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(2rem, 3.8vw, 3.55rem);
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.55rem);
}

h3 {
  font-size: 1.1rem;
}

p {
  margin: 0;
}

.section-head p + p,
.rich-text p + p,
.hero-copy p + p,
.note-text,
.footer-text {
  margin-top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(216, 224, 235, 0.75);
  transition: box-shadow var(--transition), background-color var(--transition), border-color var(--transition);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-header);
  border-color: transparent;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 86px;
}

.site-logo img,
.footer-logo img {
  width: auto;
  max-height: 44px;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.global-nav ul {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.global-nav a:not(.btn) {
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.95rem;
}

.global-nav a:not(.btn):hover,
.global-nav a:not(.btn):focus-visible,
.footer-nav a:hover,
.footer-nav a:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  color: var(--color-blue);
}

.menu-toggle {
  display: none;
  position: relative;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-white);
  cursor: pointer;
}

.menu-toggle span {
  position: absolute;
  left: 11px;
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition), top var(--transition);
}

.menu-toggle span:nth-child(1) { top: 15px; }
.menu-toggle span:nth-child(2) { top: 23px; }
.menu-toggle span:nth-child(3) { top: 31px; }

.menu-toggle.is-active span:nth-child(1) {
  top: 23px;
  transform: rotate(45deg);
}

.menu-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active span:nth-child(3) {
  top: 23px;
  transform: rotate(-45deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--color-white);
  background: linear-gradient(135deg, #2c67df 0%, #123b8f 100%);
  box-shadow: 0 14px 28px rgba(28, 67, 150, 0.24);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  box-shadow: 0 18px 32px rgba(28, 67, 150, 0.3);
}

.btn-secondary {
  color: var(--color-navy);
  background: var(--color-white);
  border-color: rgba(15, 31, 61, 0.16);
  box-shadow: var(--shadow-soft);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: rgba(43, 99, 217, 0.4);
}

.btn-large {
  min-height: 58px;
  padding-inline: 26px;
}

.header-cta {
  min-height: 48px;
}

.hero {
  padding: 60px 0 76px;
  background:
    radial-gradient(circle at top left, rgba(43, 99, 217, 0.09), transparent 32%),
    linear-gradient(180deg, #f8fbff 0%, #ffffff 68%);
}

.hero-grid,
.final-cta-grid,
.two-column,
.feature-layout {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 40px;
  align-items: center;
}

.hero-lead {
  font-size: 1.17rem;
  font-weight: 700;
  color: var(--color-navy);
}

.hero-text {
  color: var(--color-muted);
}

.hero-points {
  display: grid;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
}

.hero-points li,
.asset-list li,
.check-list li {
  position: relative;
  padding-left: 32px;
}

.hero-points li::before,
.asset-list li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold), #e6bf68);
  box-shadow: 0 0 0 5px rgba(197, 154, 61, 0.14);
  transform: translateY(-50%);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.card-surface {
  background: var(--color-white);
  border: 1px solid rgba(216, 224, 235, 0.8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card-surface img,
.side-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.info-card,
.step-card,
.internal-link-box,
.asset-list,
.check-card,
.inline-cta,
.rich-text,
.table-wrap {
  background: var(--color-white);
  border: 1px solid rgba(216, 224, 235, 0.9);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.rich-text,
.asset-list,
.check-card,
.inline-cta,
.internal-link-box,
.table-wrap {
  padding: 30px;
}

.card-grid {
  display: grid;
  gap: 18px;
}

.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.four-up {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.info-card {
  padding: 24px 22px;
}

.info-card h3 {
  color: var(--color-navy);
}

.problem-section .two-column {
  align-items: stretch;
}

.side-image,
.hero-media {
  height: 100%;
}

.side-image img,
.hero-media img,
.final-cta-grid img,
.feature-layout img,
.buyer-grid img {
  height: 100%;
  min-height: 100%;
  object-fit: cover;
}

.asset-list ul,
.check-list,
.footer-nav,
.steps {
  margin: 0;
  padding: 0;
}

.asset-list ul,
.check-list {
  list-style: none;
  display: grid;
  gap: 14px;
}

.note-text {
  color: var(--color-muted);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 700px;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  text-align: left;
}

.comparison-table thead th {
  background: #eff5ff;
  color: var(--color-navy);
  font-size: 0.96rem;
}

.comparison-table tbody th {
  color: var(--color-navy);
  font-size: 0.95rem;
  width: 180px;
}

.table-wrap {
  overflow-x: auto;
}

.disclaimer {
  margin-top: 20px;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.section-dark .section-head p,
.section-dark .section-head h2,
.section-dark .section-head {
  color: var(--color-white);
}

.dark-surface {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.check-list li {
  color: rgba(255, 255, 255, 0.92);
}

.accordion-list {
  display: grid;
  gap: 14px;
}

.accordion-item {
  background: var(--color-white);
  border: 1px solid rgba(216, 224, 235, 0.95);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.accordion-item summary {
  position: relative;
  display: block;
  padding: 22px 60px 22px 24px;
  font-weight: 700;
  color: var(--color-navy);
  cursor: pointer;
  list-style: none;
}

.accordion-item summary::-webkit-details-marker {
  display: none;
}

.accordion-item summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  font-size: 1.5rem;
  color: var(--color-blue);
  transform: translateY(-50%);
}

.accordion-item[open] summary::after {
  content: "−";
}

.accordion-content {
  padding: 0 24px 24px;
  color: var(--color-muted);
}

.inline-cta {
  margin-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  list-style: none;
}

.step-card {
  position: relative;
  padding: 24px;
}

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  padding: 7px 12px;
  border-radius: 999px;
  background: #eef4ff;
  color: var(--color-blue);
  font-weight: 800;
  font-size: 0.84rem;
}

.internal-link-box {
  text-align: center;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-blue);
  font-weight: 800;
  font-size: 1.04rem;
}

.text-link::after {
  content: "→";
}

.final-cta {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-2) 55%, #17376a 100%);
}

.final-cta .btn-secondary {
  color: var(--color-white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.26);
  box-shadow: none;
}

.final-cta .btn-secondary:hover,
.final-cta .btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.08);
}

.site-footer {
  background: #091326;
  color: rgba(255, 255, 255, 0.86);
  padding: 54px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: start;
}

.footer-company {
  margin-top: 20px;
  font-weight: 700;
  color: var(--color-white);
}

.footer-nav {
  display: grid;
  gap: 14px;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.86);
  font-weight: 600;
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.92rem;
}

.floating-cta {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 950;
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #2c67df 0%, #123b8f 100%);
  color: var(--color-white);
  font-weight: 800;
  box-shadow: 0 18px 34px rgba(9, 19, 38, 0.3);
}

body.menu-open {
  overflow: hidden;
}

@media (max-width: 1180px) {
  .global-nav ul {
    gap: 16px;
  }

  .four-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .section {
    padding: 72px 0;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .global-nav {
    position: fixed;
    inset: 86px 16px auto 16px;
    display: grid;
    gap: 20px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(216, 224, 235, 0.95);
    border-radius: 20px;
    box-shadow: var(--shadow-header);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }

  .global-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .global-nav ul {
    display: grid;
    gap: 10px;
  }

  .global-nav a:not(.btn) {
    padding: 8px 0;
    border-bottom: 1px solid #eef2f8;
  }

  .hero-grid,
  .final-cta-grid,
  .two-column,
  .feature-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .three-up {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .inline-cta {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(calc(100% - 24px), var(--container));
  }

  .header-inner {
    min-height: 78px;
    gap: 16px;
  }

  .site-logo img,
  .footer-logo img {
    max-height: 36px;
  }

  .hero {
    padding-top: 32px;
    padding-bottom: 64px;
  }

  .hero-points,
  .cta-group {
    gap: 12px;
  }

  .btn,
  .btn-large {
    width: 100%;
  }

  .rich-text,
  .asset-list,
  .check-card,
  .inline-cta,
  .internal-link-box,
  .table-wrap,
  .step-card,
  .info-card {
    padding: 22px;
  }

  .three-up,
  .four-up,
  .steps {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    min-width: 620px;
  }

  .accordion-item summary {
    padding: 18px 54px 18px 18px;
  }

  .accordion-content {
    padding: 0 18px 18px;
  }

  .footer-grid {
    gap: 20px;
  }

  .floating-cta {
    display: inline-flex;
  }

  body {
    padding-bottom: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}