:root {
  --bg: #eef3f1;
  --paper: #f7faf8;
  --ink: #14332c;
  --muted: #5b6f69;
  --accent: #0b7a63;
  --line: rgba(20, 51, 44, 0.1);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  line-height: 1.55;
}

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

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

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: rgb(238 243 241 / 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 22px;
  font-size: 14px;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 28px 72px;
  min-height: calc(100dvh - 64px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}

.hero h1 {
  margin: 0;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.lede {
  max-width: 34em;
  margin: 18px 0 28px;
  color: var(--muted);
  font-size: 18px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #f4fffb;
  font-weight: 700;
}

.btn-primary:active {
  transform: translateY(1px);
}

.hero-media img {
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.section {
  max-width: 980px;
  margin: 0 auto;
  padding: 72px 28px;
}

.section h2 {
  margin: 0 0 28px;
  font-size: 32px;
  letter-spacing: -0.03em;
}

.flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.flow li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.flow li:last-child {
  border-bottom: 1px solid var(--line);
}

.flow strong {
  font-size: 18px;
}

.flow span {
  color: var(--muted);
}

.price {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.price p,
.note {
  color: var(--muted);
  max-width: 42em;
}

.price dl {
  margin: 0;
  display: grid;
  gap: 20px;
}

.price dt {
  font-size: 13px;
  color: var(--muted);
}

.price dd {
  margin: 6px 0 0;
  font-size: 18px;
}

.photo-band {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

.photo-band img {
  width: 100%;
  border-radius: var(--radius);
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

.areas {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.areas li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.areas li:last-child {
  border-bottom: 1px solid var(--line);
}

.areas span {
  color: var(--muted);
}

.book {
  background: var(--paper);
  max-width: none;
  padding-left: max(28px, calc((100% - 980px) / 2));
  padding-right: max(28px, calc((100% - 980px) / 2));
}

.book-hint {
  color: var(--muted);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
}

@media (max-width: 767px) {
  .nav-links {
    display: none;
  }

  .hero,
  .price,
  .flow li,
  .areas li,
  .footer {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero {
    padding-top: 28px;
    min-height: 0;
  }

  .areas li,
  .footer {
    justify-items: start;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101816;
    --paper: #17211e;
    --ink: #e7f1ed;
    --muted: #9bb0a9;
    --line: rgba(231, 241, 237, 0.12);
  }

  .nav {
    background: rgb(16 24 22 / 0.92);
  }

  .btn-primary {
    color: #06241d;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}