:root {
  --bg:        #faf8f4;
  --dark:      #1c1c2e;
  --red:       #c0392b;
  --muted:     #5a5a7a;
  --border:    #ddd8cf;
  --alt-bg:    #f0ece4;

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

  --max-w: 1200px;
}

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

html {
  font-size: 16px;
  background-color: var(--bg);
  color: var(--dark);
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  background-color: var(--bg);
  color: var(--dark);
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.25;
  color: var(--dark);
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }
h3 { font-size: 1.15rem; }

p {
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--muted);
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.page-header {
  background-color: var(--dark);
  padding: 0;
}

.page-header__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.page-header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.page-header__logo {
  width: 40px;
  height: 40px;
}

.page-header__brand-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--bg);
}

.page-header__back {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  padding: 10px 0;
  font-weight: 700;
}

.page-header__back:hover {
  color: rgba(255,255,255,0.8);
}

.page-header__hero {
  padding: 80px 32px 72px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.page-header__label {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #e07060;
  font-weight: 700;
  margin-bottom: 20px;
  display: block;
}

.page-header__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--bg);
  line-height: 1.15;
  max-width: 640px;
}

.page-section {
  padding: 80px 0;
}

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

.page-section--dark {
  background-color: var(--dark);
}

.page-section--dark h2,
.page-section--dark h3 {
  color: var(--bg);
}

.page-section--dark p {
  color: rgba(255,255,255,0.5);
}

.page-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.page-content-grid--reversed {
  direction: rtl;
}

.page-content-grid--reversed > * {
  direction: ltr;
}

.page-text-block h2 {
  margin-bottom: 18px;
}

.page-text-block p {
  margin-bottom: 14px;
}

.page-text-block p:last-child {
  margin-bottom: 0;
}

.section-label {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
  display: block;
  margin-bottom: 14px;
}

.img-placeholder {
  background-color: var(--border);
  position: relative;
  display: block;
  overflow: hidden;
}

.img-placeholder--4-3  { aspect-ratio: 4 / 3; }
.img-placeholder--16-9 { aspect-ratio: 16 / 9; }
.img-placeholder--1-1  { aspect-ratio: 1 / 1; }

.img-placeholder::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 36px;
  border: 3px solid #b8b0a4;
  border-radius: 4px;
}

.img-placeholder::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  border: 3px solid #b8b0a4;
  border-radius: 50%;
}

.page-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.page-pillar {
  background-color: var(--dark);
  padding: 48px 36px;
}

.page-pillar__num {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--red);
  opacity: 0.6;
  line-height: 1;
  margin-bottom: 20px;
}

.page-pillar__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--bg);
  margin-bottom: 12px;
}

.page-pillar__text {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}

.page-empty-block {
  padding: 120px 0;
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.page-empty-block__notice {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--border);
  font-weight: 700;
}

.site-footer {
  background-color: var(--dark);
  padding: 56px 0 32px;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.footer-brand img {
  width: 40px;
  height: 40px;
}

.footer-brand__name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--bg);
}

.footer-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  max-width: 320px;
}

.footer-col__title {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
  margin-bottom: 18px;
}

.footer-col__links li { margin-bottom: 10px; }

.footer-col__links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
}

.footer-col__links a:hover { color: var(--bg); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-copyright {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.25);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.25);
}

.footer-legal a:hover { color: rgba(255,255,255,0.6); }

@media (max-width: 768px) {
  .container { padding: 0 20px; }

  .page-header__topbar { padding: 20px; }
  .page-header__hero { padding: 56px 20px 48px; }

  .page-content-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .page-pillars {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}