:root {
  
  --c-bg:        #edf1f7;
  --c-fg:        #162236;
  --c-muted:     #6b8aa3;
  --c-accent:    #1c6fa5;
  --c-accent-lt: #a8d8f0;
  --c-dark:      #162236;
  --c-dark-mid:  #1e3048;
  --c-white:     #ffffff;
  --c-border:    #c7d5e3;
  --c-surface:   #f7f9fc;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 2rem;
  --space-5: 4rem;
  --space-6: 8rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --font-display: 'Noto Serif JP', 'Georgia', serif;
  --font-body:    'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;

  --z-base:    0;
  --z-raised:  10;
  --z-overlay: 100;
  --z-top:     1000;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--c-bg);
  color: var(--c-fg);
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); }

h1 { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; line-height: 1.15; }
h2 { font-family: var(--font-display); font-size: clamp(1.6rem, 3.5vw, 2.6rem); font-weight: 700; line-height: 1.2; }
h3 { font-family: var(--font-display); font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 600; line-height: 1.3; }
h4 { font-family: var(--font-body); font-size: 1rem; font-weight: 700; }
p  { font-size: clamp(0.95rem, 1.2vw, 1.05rem); line-height: 1.7; }

.section-label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  display: block;
  margin-bottom: var(--space-2);
}

.container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.section-pad {
  padding-block: var(--space-5);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-body);
  letter-spacing: 0.04em;
  border: 2px solid transparent;
  transition: background-color 0.18s, color 0.18s, border-color 0.18s;
}
.btn-primary {
  background-color: var(--c-accent);
  color: var(--c-white);
  border-color: var(--c-accent);
}
.btn-primary:hover {
  background-color: var(--c-dark);
  border-color: var(--c-dark);
}
.btn-outline {
  background-color: transparent;
  color: var(--c-white);
  border-color: var(--c-white);
}
.btn-outline:hover {
  background-color: var(--c-white);
  color: var(--c-dark);
}
.btn-outline-dark {
  background-color: transparent;
  color: var(--c-accent);
  border-color: var(--c-accent);
}
.btn-outline-dark:hover {
  background-color: var(--c-accent);
  color: var(--c-white);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-top);
  background-color: var(--c-white);
  border-bottom: 1px solid var(--c-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.header-logo img {
  width: 40px;
  height: 40px;
}
.header-brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-fg);
  letter-spacing: 0.02em;
}

.site-nav { display: flex; align-items: center; gap: var(--space-4); }
.site-nav a {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--c-fg);
  letter-spacing: 0.04em;
}
.site-nav a:hover { color: var(--c-accent); }
.nav-cta { margin-left: var(--space-3); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: var(--space-2);
  z-index: var(--z-top);
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--c-fg);
  border-radius: 2px;
}

.hero {
  background-color: var(--c-dark);
  min-height: 540px;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 540px;
}
.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: var(--space-5);
  gap: var(--space-3);
}
.hero-content h1 { color: var(--c-white); }
.hero-content p  { color: var(--c-accent-lt); font-size: 1.05rem; }
.hero-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-3); }
.hero-image {
  background-color: var(--c-dark-mid);
  position: relative;
  overflow: hidden;
}
.hero-image .placeholder-img {
  width: 100%;
  height: 100%;
  background-color: #1e3a56;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-image .placeholder-img::after {
  content: '';
  display: block;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: rgba(168,216,240,0.18);
}

.placeholder-img {
  background-color: var(--c-border);
  border-radius: var(--radius-md);
  width: 100%;
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
}
.placeholder-img--tall  { aspect-ratio: 4/5; }
.placeholder-img--sq    { aspect-ratio: 1/1; }
.placeholder-img--wide  { aspect-ratio: 21/9; }
.placeholder-img--card  { aspect-ratio: 4/3; }
.placeholder-img span {
  font-size: 0.78rem;
  color: var(--c-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.intro { background-color: var(--c-surface); }
.intro .container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-5);
  align-items: center;
}
.intro-heading { }
.intro-body { color: var(--c-muted); }
.intro-body p + p { margin-top: var(--space-3); }

.features { background-color: var(--c-dark); }
.features-header { text-align: center; margin-bottom: var(--space-5); }
.features-header h2 { color: var(--c-white); }
.features-header .section-label { color: var(--c-accent-lt); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.feature-card {
  background-color: var(--c-dark-mid);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: 0 4px 18px rgba(0,0,0,0.22);
}
.feature-icon {
  width: 44px;
  height: 44px;
  background-color: var(--c-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}
.feature-icon svg { width: 22px; height: 22px; fill: none; stroke: var(--c-white); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature-card h3 { color: var(--c-white); margin-bottom: var(--space-2); }
.feature-card p  { color: var(--c-muted); font-size: 0.92rem; line-height: 1.6; }

.capabilities { background-color: var(--c-bg); }
.capabilities .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.capabilities-text { }
.capabilities-text h2 { margin-bottom: var(--space-3); }
.capabilities-text p  { color: var(--c-muted); margin-bottom: var(--space-4); }
.cap-list { display: flex; flex-direction: column; gap: var(--space-3); }
.cap-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.cap-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background-color: var(--c-accent);
  color: var(--c-white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 2px;
}
.cap-item p { font-size: 0.93rem; color: var(--c-muted); line-height: 1.55; }
.cap-item strong { color: var(--c-fg); font-weight: 600; }

.how-it-works { background-color: var(--c-dark); }
.how-it-works .section-label { color: var(--c-accent-lt); }
.how-header { text-align: center; margin-bottom: var(--space-5); }
.how-header h2 { color: var(--c-white); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-3);
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
}
.step-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background-color: var(--c-accent);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  position: relative;
}
.step-num::after {
  content: '';
  position: absolute;
  left: 52px;
  top: 50%;
  width: calc(100% + 2.5rem);
  height: 1px;
  background-color: rgba(168,216,240,0.2);
}
.steps-grid .step:last-child .step-num::after { display: none; }
.step h4 { color: var(--c-white); }
.step p  { color: var(--c-muted); font-size: 0.88rem; line-height: 1.55; }

.products { background-color: var(--c-surface); }
.products-header { margin-bottom: var(--space-5); }
.products-header h2 { }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.product-card {
  background-color: var(--c-white);
  border-radius: var(--radius-md);
  box-shadow: 0 2px 16px rgba(22,34,54,0.07);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card .placeholder-img {
  border-radius: 0;
  aspect-ratio: 4/3;
}
.product-body {
  padding: var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.product-body h3 { margin-bottom: var(--space-1); }
.product-body p  { color: var(--c-muted); font-size: 0.9rem; flex: 1; }
.product-price {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-accent);
  margin-block: var(--space-2);
}
.product-price span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--c-muted);
  font-family: var(--font-body);
}

.benefits { background-color: var(--c-dark); }
.benefits .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.benefits-media .placeholder-img {
  background-color: #1e3a56;
}
.benefits-text h2 { color: var(--c-white); margin-bottom: var(--space-3); }
.benefits-text .section-label { color: var(--c-accent-lt); }
.benefits-list { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.benefit-row {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.benefit-check {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background-color: var(--c-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
}
.benefit-check svg { width: 11px; height: 11px; stroke: white; stroke-width: 2.5; fill: none; }
.benefit-row p { color: var(--c-accent-lt); font-size: 0.93rem; }
.benefit-row strong { color: var(--c-white); }

.case-study { background-color: var(--c-bg); }
.case-study .container {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-5);
  align-items: center;
}
.case-label { color: var(--c-accent); }
.case-text h2 { margin-bottom: var(--space-3); }
.case-text p  { color: var(--c-muted); margin-bottom: var(--space-4); }
.case-meta { display: flex; gap: var(--space-5); margin-top: var(--space-4); }
.case-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-accent);
}
.case-stat span { font-size: 0.85rem; color: var(--c-muted); }

.metrics { background-color: var(--c-dark); }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  text-align: center;
}
.metric strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--c-accent-lt);
}
.metric span { font-size: 0.9rem; color: var(--c-muted); }

.testimonials { background-color: var(--c-surface); }
.testimonials-header { text-align: center; margin-bottom: var(--space-5); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.testi-card {
  background-color: var(--c-white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: 0 2px 16px rgba(22,34,54,0.07);
}
.testi-quote {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--c-fg);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  font-style: italic;
}
.testi-quote::before { content: '\201C'; color: var(--c-accent); font-size: 1.5rem; }
.testi-author { display: flex; align-items: center; gap: var(--space-3); }
.testi-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--c-border);
  flex-shrink: 0;
}
.testi-name { font-weight: 700; font-size: 0.9rem; color: var(--c-fg); }
.testi-role { font-size: 0.8rem; color: var(--c-muted); }
.stars { color: var(--c-accent); font-size: 0.85rem; margin-bottom: var(--space-2); }

.faq { background-color: var(--c-dark); }
.faq-header { margin-bottom: var(--space-5); text-align: center; }
.faq-header h2 { color: var(--c-white); }
.faq-header .section-label { color: var(--c-accent-lt); }
.faq-list { max-width: 760px; margin-inline: auto; display: flex; flex-direction: column; gap: var(--space-3); }
.faq-item { border-bottom: 1px solid rgba(168,216,240,0.15); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding-block: var(--space-3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--c-white);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  text-align: left;
  gap: var(--space-3);
}
.faq-question:hover { color: var(--c-accent-lt); }
.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--c-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.faq-icon::after {
  content: '+';
  font-size: 1rem;
  line-height: 1;
  color: var(--c-accent);
}
.faq-item.open .faq-icon::after { content: '−'; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
}
.faq-answer p {
  padding-bottom: var(--space-3);
  color: var(--c-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

.contacts { background-color: var(--c-bg); }
.contacts .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.contacts-info h2 { margin-bottom: var(--space-4); }
.contact-details { display: flex; flex-direction: column; gap: var(--space-4); margin-bottom: var(--space-4); }
.contact-item { display: flex; gap: var(--space-3); align-items: flex-start; }
.contact-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background-color: var(--c-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-icon svg { width: 18px; height: 18px; stroke: white; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.contact-item strong { display: block; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--c-muted); margin-bottom: var(--space-1); }
.contact-item span { font-size: 0.95rem; color: var(--c-fg); }
.contacts-map .placeholder-img { aspect-ratio: 4/3; background-color: var(--c-border); }

.contact-form { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.form-group { display: flex; flex-direction: column; gap: var(--space-1); }
.form-group label { font-size: 0.82rem; font-weight: 600; color: var(--c-muted); letter-spacing: 0.05em; }
.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.93rem;
  color: var(--c-fg);
  background-color: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-accent);
}
.form-group textarea { min-height: 110px; }

.site-footer {
  background-color: var(--c-dark);
  padding-block: var(--space-5) var(--space-4);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: var(--space-4);
}
.footer-brand { }
.footer-logo { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-3); }
.footer-logo img { width: 36px; height: 36px; }
.footer-brand-name { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--c-white); }
.footer-tagline { font-size: 0.88rem; color: var(--c-muted); line-height: 1.6; }
.footer-col h4 { color: var(--c-white); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.12em; margin-bottom: var(--space-3); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col ul li a { font-size: 0.88rem; color: var(--c-muted); }
.footer-col ul li a:hover { color: var(--c-accent-lt); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.footer-copy { font-size: 0.82rem; color: var(--c-muted); }
.footer-legal { display: flex; gap: var(--space-4); }
.footer-legal a { font-size: 0.82rem; color: var(--c-muted); }
.footer-legal a:hover { color: var(--c-accent-lt); }

#cookie-banner {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-top);
  background-color: var(--c-dark);
  border-top: 2px solid var(--c-accent);
  padding: var(--space-3) var(--space-4);
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}
#cookie-banner p { font-size: 0.88rem; color: var(--c-muted); flex: 1; }
#cookie-banner a { color: var(--c-accent-lt); text-decoration: underline; }
.cookie-actions { display: flex; gap: var(--space-3); flex-shrink: 0; }
#cookie-accept {
  background-color: var(--c-accent);
  color: var(--c-white);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
}
#cookie-accept:hover { background-color: var(--c-dark-mid); }

@media (min-width: 641px) and (max-width: 1024px) {
  .hero .container { grid-template-columns: 1fr 1fr; }
  .intro .container { grid-template-columns: 1fr; gap: var(--space-4); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
  .steps-grid .step:nth-child(3) .step-num::after { display: none; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits .container { grid-template-columns: 1fr 1fr; }
  .case-study .container { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .contacts .container { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-4); }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background-color: var(--c-white);
    padding: var(--space-4);
    border-bottom: 1px solid var(--c-border);
    z-index: var(--z-overlay);
    gap: var(--space-3);
  }

  .hero .container { grid-template-columns: 1fr; }
  .hero-image { min-height: 220px; }
  .hero-content { padding-block: var(--space-4); }

  .intro .container { grid-template-columns: 1fr; gap: var(--space-3); }
  .features-grid { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .capabilities .container { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid .step:nth-child(2) .step-num::after,
  .steps-grid .step:nth-child(4) .step-num::after { display: none; }
  .products-grid { grid-template-columns: 1fr; }
  .benefits .container { grid-template-columns: 1fr; }
  .case-study .container { grid-template-columns: 1fr; }
  .case-meta { gap: var(--space-4); }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }
  .contacts .container { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-4); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  #cookie-banner { flex-direction: column; align-items: flex-start; }
}
.aux-hero { padding-block: var(--space-6); }
.hero { padding-block: var(--space-6); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, [tabindex]:focus-visible { outline: 2px solid currentColor; outline-offset: 2px; }

.product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}










/* wh-img-fill */
.product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}










/* wh-elem-contrast */
/* Auto: element text failed 4.5:1 against its resolved background. */
.aux-update { color: #111111 !important; }
.footer-copy { color: #ffffff !important; }