:root {
  --paper: #f7f5f0;
  --ink: #1c1c1c;
  --muted: #6b6b6b;
  --line: #d8d4cb;
  --accent: #4a5d52;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 2;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  opacity: 0.65;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 24px;
  isolation: isolate;
}

.site-header::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 100vw;
  transform: translateX(-50%);
  background: rgba(247, 245, 240, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
}

.brand-name {
  font-family: "Helvetica Neue", "Hiragino Sans", "Arial", sans-serif;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: lowercase;
}

.brand-icon {
  display: block;
  width: 28px;
  height: auto;
  flex-shrink: 0;
}

.brand-with-icon .brand-name {
  letter-spacing: 0.22em;
}

.nav {
  display: flex;
  gap: 28px;
  font-size: 12px;
  letter-spacing: 0.12em;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 120px;
}

.hero {
  padding: clamp(64px, 10vh, 96px) 0;
  border-bottom: 1px solid var(--line);
}

.hero-brand {
  padding-top: clamp(56px, 10vh, 88px);
  padding-bottom: clamp(64px, 10vh, 96px);
}

.hero-brand h1 {
  margin: 0;
  font-size: clamp(28px, 5.5vw, 40px);
  font-weight: 500;
  line-height: 1.65;
  letter-spacing: 0.08em;
}

.hero-brand .hero-lead {
  max-width: 540px;
  margin: 32px 0 0;
}

.hero-label {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.hero h1 {
  font-weight: 500;
}

.hero-lead {
  max-width: 540px;
  margin: 40px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 2.2;
}

.section-title {
  margin: 0 0 40px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.28em;
}

.about {
  padding: clamp(64px, 10vh, 96px) 0;
  border-bottom: 1px solid var(--line);
}

.about-text {
  margin: 0;
  max-width: 540px;
  color: var(--muted);
  font-size: 14px;
  line-height: 2.2;
}

.business {
  padding: clamp(64px, 10vh, 96px) 0 0;
}

.business-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.business-list li {
  display: grid;
  grid-template-columns: 2.5em 1fr;
  gap: 0 24px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
}

.business-list li:last-of-type {
  border-bottom: 1px solid var(--line);
}

.business-num {
  color: var(--accent);
  font-size: 13px;
  line-height: 2.2;
}

.business-list h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.business-list p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 2;
}

.business-note {
  margin: 48px 0 0;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.2em;
}

.hotel-teaser {
  padding: clamp(64px, 10vh, 96px) 0 0;
  border-top: 1px solid var(--line);
  margin-top: clamp(64px, 10vh, 96px);
}

.hotel-teaser-text {
  margin: 0;
  max-width: 520px;
  color: var(--muted);
  font-size: 14px;
  line-height: 2.2;
}

.hotel-teaser-link {
  margin: 28px 0 0;
  font-size: 13px;
  letter-spacing: 0.14em;
}

.hotel-teaser-link a {
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
}

.site-footer-split {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  text-align: left;
}

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 20px;
}

.site-footer-links a {
  font-size: 11px;
  letter-spacing: 0.12em;
}

.lang-nav {
  display: flex;
  gap: 16px;
  font-size: 11px;
  letter-spacing: 0.12em;
}

.lang-nav a[aria-current="true"] {
  opacity: 0.4;
  pointer-events: none;
}

.site-footer-links .lang-nav {
  gap: 14px;
}

@media (max-width: 520px) {
  .site-footer-split {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding-top: 20px;
  }

  .hero-brand {
    padding-top: 48px;
  }

  .nav {
    gap: 20px;
  }

  .business-list li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .business-num {
    font-size: 12px;
  }
}