:root {
  --ink: #15201f;
  --muted: #5d6a68;
  --line: #dce5e0;
  --paper: #fbfaf6;
  --soft: #eef4ef;
  --mint: #165c4e;
  --gold: #c58b36;
  --white: #ffffff;
  --shadow: 0 20px 60px rgba(22, 55, 48, 0.14);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "Noto Sans JP", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.detail-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px clamp(18px, 4vw, 54px);
  background: rgba(251, 250, 246, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand-mini { display: inline-flex; align-items: center; gap: 12px; font-weight: 900; }
.brand-mini img { width: 88px; height: 44px; object-fit: contain; }
.header-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 800;
  background: var(--white);
}
.button-primary { color: var(--white); border-color: var(--mint); background: var(--mint); }
.vehicle-hero {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(380px, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(40px, 7vw, 82px) 0 44px;
}
.eyebrow { margin: 0 0 12px; color: var(--gold); font-size: 13px; font-weight: 900; text-transform: uppercase; }
h1 { margin: 0 0 18px; font-size: clamp(40px, 6vw, 70px); line-height: 1.04; letter-spacing: 0; }
h2 { margin: 0 0 16px; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.12; }
h3 { margin: 0 0 8px; font-size: 20px; }
p { margin-top: 0; }
.hero-lede { color: var(--muted); font-size: 18px; }
.vehicle-hero img { width: 100%; border-radius: 8px; box-shadow: var(--shadow); background: var(--soft); }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}
.stat-card { padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); }
.stat-card span { display: block; color: var(--muted); font-size: 12px; font-weight: 800; }
.stat-card strong { display: block; margin-top: 4px; font-size: 20px; }
.detail-section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 50px 0;
}
.two-col { display: grid; grid-template-columns: minmax(0, .92fr) minmax(340px, .8fr); gap: clamp(24px, 5vw, 56px); align-items: start; }
.panel { padding: clamp(22px, 4vw, 34px); border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: 0 10px 30px rgba(22, 55, 48, .06); }
.feature-list { display: grid; gap: 12px; margin: 20px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 24px; color: var(--muted); }
.feature-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; border-radius: 999px; background: var(--mint); }
.seat-plan { display: grid; gap: 12px; padding: 22px; border-radius: 8px; background: var(--soft); }
.seat-row { display: flex; justify-content: center; gap: 8px; }
.seat { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 8px 8px 12px 12px; color: var(--white); background: var(--mint); font-size: 11px; font-weight: 900; }
.seat.driver { background: var(--gold); }
.seat.empty { visibility: hidden; }
.seat.aisle { width: 20px; background: transparent; color: transparent; }
.capacity-note { margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.use-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.use-card { padding: 20px; border: 1px solid var(--line); border-radius: 8px; background: var(--white); }
.use-card p { color: var(--muted); margin-bottom: 0; }
.source-list { display: grid; gap: 8px; margin: 14px 0 0; padding-left: 18px; color: var(--muted); }
.source-list a { color: var(--mint); font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
.cta-band {
  width: min(1180px, calc(100% - 36px));
  margin: 28px auto 70px;
  padding: clamp(26px, 5vw, 44px);
  border-radius: 8px;
  color: var(--white);
  background: linear-gradient(135deg, var(--mint), #1b2826);
}
.cta-band p { color: rgba(255,255,255,.78); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.cta-actions .button { color: var(--ink); background: var(--white); }
.cta-actions .button-primary { color: var(--white); background: var(--gold); border-color: var(--gold); }
@media (max-width: 920px) {
  .vehicle-hero, .two-col { grid-template-columns: 1fr; }
  .stat-grid, .use-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .detail-header { align-items: flex-start; flex-direction: column; }
  .stat-grid, .use-grid { grid-template-columns: 1fr; }
  .seat { width: 28px; height: 28px; font-size: 10px; }
}

.detail-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.language-switch {
  display: flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
}

.language-switch button {
  border: 0;
  border-radius: 999px;
  padding: 7px 10px;
  color: var(--muted);
  background: transparent;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.language-switch button.active {
  color: var(--white);
  background: var(--mint);
}

@media (max-width: 620px) {
  .detail-actions {
    width: 100%;
    justify-content: flex-start;
  }
}

.interior-photo-section {
  padding-top: 24px;
}

.interior-lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 16px;
}

.interior-photo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 22px;
}

.interior-photo-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(22, 55, 48, .07);
}

.interior-photo-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--soft);
}

.interior-photo-card figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.interior-empty {
  margin-top: 18px;
  padding: 22px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: var(--white);
}

@media (max-width: 620px) {
  .interior-photo-grid {
    grid-template-columns: 1fr;
  }
}