:root {
  --c-bg: #efebe2;
  --c-bg-alt: #e4ded1;
  --c-fg: #262117;
  --c-muted: #6b6355;
  --c-accent: #3e5a3a;
  --c-accent-2: #c97b2e;
  --c-line: #d9d1c0;
  --c-dark-bg: #23281f;
  --c-dark-fg: #f3efe4;
  --c-dark-muted: #b7b3a4;
  --c-card-bg: #f8f5ed;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6.5rem;

  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 28px;

  --font-display: "Zen Old Mincho", "Noto Serif JP", serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;

  --shadow-soft: 0 18px 40px -22px rgba(38, 33, 23, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.94rem + 0.2vw, 1.0625rem);
  line-height: 1.75;
}

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.35;
  margin: 0;
  letter-spacing: 0.01em;
}

p {
  margin: 0;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-accent-2);
  font-weight: 600;
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-5);
}

.section-head h2 {
  font-size: clamp(1.6rem, 1.3rem + 1.4vw, 2.4rem);
  margin-top: var(--space-2);
}

.section-head p {
  margin-top: var(--space-2);
  color: var(--c-muted);
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

section {
  padding: var(--space-6) 0;
}

.section-dark {
  background: var(--c-dark-bg);
  color: var(--c-dark-fg);
}

.section-dark .eyebrow {
  color: var(--c-accent-2);
}

.section-dark .section-head p,
.section-dark .muted {
  color: var(--c-dark-muted);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--c-accent);
  color: var(--c-dark-fg);
}

.btn-outline {
  border-color: currentColor;
  background: transparent;
}

.btn-ghost {
  background: transparent;
  padding-left: 0;
  padding-right: 0;
  color: var(--c-accent-2);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-bg);
  border-bottom: 1px solid var(--c-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.brand .logo-mark {
  width: 40px;
  height: 40px;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-tagline {
  display: block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

.hero {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.1rem, 1.6rem + 2.6vw, 3.4rem);
  margin-top: var(--space-2);
}

.hero-copy p {
  margin-top: var(--space-3);
  color: var(--c-muted);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.hero-stats {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-5);
  flex-wrap: wrap;
}

.hero-stats div strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--c-accent);
}

.hero-stats div span {
  color: var(--c-muted);
  font-size: 0.85rem;
}

.img-box {
  position: relative;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-muted);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.img-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-line) 0%, var(--c-bg-alt) 60%);
}

.img-box span {
  position: relative;
  z-index: 10;
  background: var(--c-card-bg);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-line);
}

.hero-image {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
}

.intro .container {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

.intro-lead {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 1.1rem + 0.8vw, 1.9rem);
  max-width: 760px;
}

.intro-lead .accent {
  color: var(--c-accent);
}

.intro-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-3);
  color: var(--c-muted);
}

.intro-meta li {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.9rem;
}

.intro-meta svg {
  width: 18px;
  height: 18px;
  color: var(--c-accent-2);
}

.grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

.feature-card {
  background: var(--c-card-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-soft);
}

.feature-card .icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--c-bg-alt);
  color: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
}

.feature-card .icon-wrap svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-size: 1.1rem;
}

.feature-card p {
  margin-top: var(--space-1);
  color: var(--c-muted);
  font-size: 0.92rem;
}

.capability-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: center;
}

.capability-list li {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--c-line);
  align-items: flex-start;
}

.capability-list li:first-child {
  padding-top: 0;
}

.capability-list .num {
  font-family: var(--font-display);
  color: var(--c-accent-2);
  font-size: 1.1rem;
}

.capability-list h3 {
  font-size: 1.05rem;
}

.capability-list p {
  color: var(--c-muted);
  margin-top: 4px;
  font-size: 0.9rem;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.showcase-grid .img-box {
  aspect-ratio: 1 / 1;
}

.showcase-grid .img-box.wide {
  aspect-ratio: 16 / 10;
  grid-column: span 2;
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.step-card {
  padding: var(--space-3) 0 0;
  border-top: 1px solid var(--c-line);
  position: relative;
}

.step-card .step-index {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--c-accent-2);
  opacity: 0.7;
}

.step-card h3 {
  margin-top: var(--space-2);
  font-size: 1.1rem;
}

.step-card p {
  margin-top: var(--space-1);
  color: var(--c-muted);
  font-size: 0.92rem;
}

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.product-card {
  background: var(--c-card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
}

.product-card .img-box {
  aspect-ratio: 4 / 3;
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--c-line);
}

.product-body {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 1;
}

.product-tag {
  font-size: 0.75rem;
  color: var(--c-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.product-body h3 {
  font-size: 1.1rem;
}

.product-body p {
  color: var(--c-muted);
  font-size: 0.9rem;
}

.product-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
}

.product-price {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--c-fg);
}

.product-price span {
  font-size: 0.7rem;
  color: var(--c-muted);
  font-family: var(--font-body);
  display: block;
}

.product-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-accent-2);
}

.product-cta svg {
  width: 16px;
  height: 16px;
}

.benefits-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: center;
}

.benefits-list li {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  align-items: flex-start;
}

.benefits-list svg {
  width: 22px;
  height: 22px;
  color: var(--c-accent-2);
  flex-shrink: 0;
  margin-top: 2px;
}

.benefits-list h3 {
  font-size: 1rem;
}

.benefits-list p {
  color: var(--c-muted);
  font-size: 0.88rem;
  margin-top: 2px;
}

.case-study {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: center;
}

.case-quote {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.6rem);
  line-height: 1.55;
}

.case-author {
  margin-top: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.case-author strong {
  display: block;
  font-size: 0.95rem;
}

.case-author span {
  color: var(--c-dark-muted);
  font-size: 0.82rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  text-align: center;
}

.metric-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 1.7rem + 1vw, 2.7rem);
  color: var(--c-accent);
}

.metric-item span {
  color: var(--c-muted);
  font-size: 0.85rem;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.testimonial-card {
  background: var(--c-card-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-soft);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  color: var(--c-accent-2);
}

.testimonial-stars svg {
  width: 16px;
  height: 16px;
}

.testimonial-card p {
  margin-top: var(--space-2);
  color: var(--c-fg);
  font-size: 0.95rem;
}

.testimonial-name {
  margin-top: var(--space-3);
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-name span {
  display: block;
  font-weight: 400;
  color: var(--c-muted);
  font-size: 0.8rem;
}

.partners-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.partner-box {
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  text-align: center;
  color: var(--c-muted);
  font-size: 0.85rem;
  font-family: var(--font-display);
}
.partner-box strong { display: block; color: var(--c-fg); font-size: 1rem; }
.partner-box span { display: block; margin-top: var(--space-1); font-family: var(--font-body); font-size: .78rem; line-height: 1.5; }

.faq-list {
  border-top: 1px solid var(--c-line);
}

.faq-item {
  border-bottom: 1px solid var(--c-line);
  padding: var(--space-3) 0;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-display);
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

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

.faq-item summary .plus {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--c-accent-2);
}

.faq-item[open] summary .plus {
  background: var(--c-accent-2);
  color: var(--c-dark-fg);
  border-color: var(--c-accent-2);
}

.faq-item p {
  margin-top: var(--space-2);
  color: var(--c-muted);
  font-size: 0.92rem;
  max-width: 640px;
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.blog-card .img-box {
  aspect-ratio: 16 / 10;
}

.blog-card .blog-meta {
  margin-top: var(--space-2);
  font-size: 0.78rem;
  color: var(--c-accent-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.blog-card h3 {
  margin-top: var(--space-1);
  font-size: 1.05rem;
}

.blog-card p {
  margin-top: var(--space-1);
  color: var(--c-muted);
  font-size: 0.88rem;
}

.contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.contact-info li {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(243, 239, 228, 0.12);
}

.contact-info svg {
  width: 20px;
  height: 20px;
  color: var(--c-accent-2);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-info strong {
  display: block;
  font-size: 0.85rem;
  color: var(--c-dark-muted);
  font-weight: 400;
}

.contact-info span {
  display: block;
  font-size: 1rem;
  margin-top: 2px;
}

.contact-form {
  background: var(--c-card-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: grid;
  gap: var(--space-2);
  color: var(--c-fg);
}

.contact-form label {
  font-size: 0.85rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.4rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-line);
  background: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.form-note {
  font-size: 0.78rem;
  color: var(--c-muted);
}

.form-status {
  font-size: 0.85rem;
  min-height: 1.2em;
  color: var(--c-accent);
}

.site-footer {
  background: var(--c-dark-bg);
  color: var(--c-dark-fg);
  padding: var(--space-5) 0 var(--space-3);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(243, 239, 228, 0.12);
}

.footer-brand .brand-name {
  color: var(--c-dark-fg);
}

.footer-brand p {
  margin-top: var(--space-2);
  color: var(--c-dark-muted);
  font-size: 0.9rem;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-dark-muted);
  font-family: var(--font-body);
  font-weight: 600;
}

.footer-col ul {
  margin-top: var(--space-2);
  display: grid;
  gap: 0.6rem;
}

.footer-col a {
  color: var(--c-dark-fg);
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-3);
  font-size: 0.8rem;
  color: var(--c-dark-muted);
}

@media (min-width: 641px) and (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr 1fr;
  }

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

  .capability-row {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .benefits-row {
    grid-template-columns: 1fr 1fr;
  }

  .case-study {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

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

  .contact-row {
    grid-template-columns: 1.1fr 1fr;
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .footer-top {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

@media (min-width: 1025px) {
  .hero .container {
    grid-template-columns: 1fr 0.9fr;
  }

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

  .capability-row {
    grid-template-columns: 0.9fr 1fr;
  }

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

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

  .benefits-row {
    grid-template-columns: 1fr 0.9fr;
  }

  .case-study {
    grid-template-columns: 0.9fr 1fr;
  }

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

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

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

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

  .contact-row {
    grid-template-columns: 1fr 1fr;
  }

  .form-row {
    grid-template-columns: 1fr 1fr;
  }

  .footer-top {
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
  }
}

.metric-item { padding: 20px; }
.blog-card { background: #fff; border: 1px solid #e5e7eb; overflow: hidden; }
.blog-card img { width: 100%; height: 220px; object-fit: cover; display: block; }

.img-box { color: #111111 !important; }
.faq-item[open] summary .plus { color: #111111 !important; }

@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; }

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

.faq-item[open] summary .plus { color: #111111 !important; }

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

.faq-item[open] summary .plus { color: #111111 !important; }