:root {
  --c-bg:        #F5EFE3;
  --c-fg:        #1B2840;
  --c-muted:     #7A6858;
  --c-accent:    #1B4066;
  --c-accent-2:  #C8A96E;
  --c-surface:   #EDE5D5;
  --c-dark:      #1B2840;
  --c-dark-fg:   #F5EFE3;

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

  --radius-sm: 2px;
  --radius-md: 6px;
  --radius-lg: 14px;

  --font-display: 'Noto Serif JP', 'Georgia', serif;
  --font-body:    'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background-color: var(--c-bg);
  color: var(--c-fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.3;
  color: var(--c-fg);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 600; }
h3 { font-size: clamp(1rem, 2vw, 1.3rem); font-weight: 600; }

p {
  font-size: clamp(0.9rem, 1.5vw, 1rem);
  color: var(--c-muted);
  line-height: 1.8;
}

.label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-accent-2);
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--c-bg);
  border-bottom: 1px solid rgba(27,40,64,0.1);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.site-header__logo img { width: 38px; height: 38px; }

.site-header__brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-fg);
}

.page-hero {
  background-color: var(--c-dark);
  padding-block: var(--space-5);
}

.page-hero .label { display: block; margin-bottom: var(--space-2); }
.page-hero h1 { color: var(--c-dark-fg); }
.page-hero .page-hero__lead {
  color: rgba(245,239,227,0.7);
  font-size: 1.05rem;
  margin-top: var(--space-3);
  max-width: 56ch;
}

.about-block {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-5);
  align-items: center;
  padding-block: var(--space-5);
  border-bottom: 1px solid rgba(27,40,64,0.08);
}

.about-block--reverse { direction: rtl; }
.about-block--reverse > * { direction: ltr; }

.about-block__visual {
  aspect-ratio: 4/3;
  background-color: var(--c-surface);
  border: 1px solid rgba(27,40,64,0.12);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-block__visual img { width:100%; height:100%; object-fit:cover; display:block; }

.about-block__visual::after {
  content: '';
  display: none;
}

.about-block__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.about-block__content .label { display: block; }

.policy-body {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.policy-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.policy-section h2 {
  font-size: 1.2rem;
  border-left: 3px solid var(--c-accent-2);
  padding-left: var(--space-3);
}

.policy-section p { margin-top: var(--space-2); }

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

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(245,239,227,0.12);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

.footer__logo-row img { width: 34px; height: 34px; }

.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-dark-fg);
}

.footer__tagline {
  font-size: 0.88rem;
  color: rgba(245,239,227,0.6);
  line-height: 1.7;
}

.footer__col h4 {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-accent-2);
  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: rgba(245,239,227,0.65);
}

.footer__col ul li a:hover { color: var(--c-dark-fg); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-3);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer__copyright { font-size: 0.8rem; color: rgba(245,239,227,0.45); }

.footer__legal { display: flex; gap: var(--space-3); }

.footer__legal a { font-size: 0.8rem; color: rgba(245,239,227,0.45); }
.footer__legal a:hover { color: var(--c-dark-fg); }

@media (min-width: 641px) and (max-width: 1024px) {
  .about-block { grid-template-columns: 1fr; }
  .about-block--reverse { direction: ltr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --space-5: 2.5rem; }
  .about-block { grid-template-columns: 1fr; }
  .about-block--reverse { direction: ltr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

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