:root {
  color-scheme: light dark;
  --bg: #f2efe7;
  --surface: #fffdf8;
  --surface-strong: #e6e0d4;
  --ink: #171819;
  --muted: #66665f;
  --line: #d5cfc3;
  --charcoal: #15191c;
  --charcoal-soft: #21272b;
  --white: #fffdf8;
  --accent: #e85f32;
  --accent-dark: #be3e19;
  --header-height: 78px;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(15, 18, 20, .12);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, Arial, sans-serif; line-height: 1.75; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 1000; padding: 10px 16px; background: var(--accent); color: #fff; font-weight: 800; }
.skip-link:focus { top: 12px; }
.container { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.section { padding: 104px 0; }
.section-dark { background: var(--charcoal); color: var(--white); }
.section-soft { background: var(--surface-strong); }
.kicker { margin: 0 0 14px; color: var(--accent); font-size: .72rem; font-weight: 900; letter-spacing: .18em; text-transform: uppercase; }
.section-title { margin: 0; font-size: clamp(2.1rem, 5vw, 4.4rem); line-height: 1.08; letter-spacing: -.055em; }
.section-lead { max-width: 650px; margin: 24px 0 0; color: var(--muted); }
.section-dark .section-lead { color: #c2c6c4; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-bottom: 48px; }
.section-heading .section-lead { margin: 0; }

.site-header { position: sticky; top: 0; z-index: 200; height: var(--header-height); border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent); background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(18px); }
.header-inner { width: min(calc(100% - 40px), 1320px); height: 100%; margin-inline: auto; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-size: .68rem; font-weight: 900; letter-spacing: .12em; line-height: 1.15; }
.brand img { width: 38px; height: 38px; border-radius: 10px; object-fit: cover; }
.brand strong { display: block; color: var(--accent); font-size: .95rem; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: clamp(18px, 2vw, 32px); margin-left: auto; font-size: .78rem; font-weight: 750; }
.desktop-nav a { padding-block: 12px; }
.desktop-nav a:hover { color: var(--accent); }
.header-cta, .button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 12px; border: 0; border-radius: 3px; padding: 12px 20px; background: var(--accent); color: #fff; font-size: .82rem; font-weight: 900; cursor: pointer; transition: transform .2s ease, background .2s ease; }
.header-cta:hover, .button:hover { background: var(--accent-dark); transform: translateY(-1px); }
.button-dark { background: var(--charcoal); }
.button-outline { border: 1px solid currentColor; background: transparent; color: inherit; }
.button-outline:hover { background: var(--ink); color: var(--bg); }
.menu-toggle { display: none; width: 46px; height: 46px; margin-left: auto; border: 1px solid var(--line); border-radius: 4px; background: transparent; color: inherit; align-items: center; justify-content: center; }
.menu-toggle span, .menu-toggle::before, .menu-toggle::after { content: ""; display: block; width: 20px; height: 2px; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
.menu-toggle span { margin: 5px 0; }
.menu-toggle[aria-expanded="true"] span { opacity: 0; }
.menu-toggle[aria-expanded="true"]::before { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"]::after { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; min-height: min(790px, calc(100svh - var(--header-height))); display: grid; align-items: center; overflow: hidden; isolation: isolate; background: #11171b url("hero-truck.png") center 48% / cover no-repeat; color: var(--white); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(10, 13, 15, .94) 0%, rgba(10, 13, 15, .84) 38%, rgba(10, 13, 15, .28) 72%, rgba(10, 13, 15, .12) 100%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 34%; z-index: -1; background: linear-gradient(transparent, rgba(8, 11, 13, .72)); }
.hero-content { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; padding: 84px 0; }
.hero-copy { max-width: 700px; }
.hero h1 { margin: 0; font-size: clamp(4rem, 8.8vw, 8.2rem); line-height: .92; letter-spacing: -.075em; text-wrap: balance; }
.hero h1 span { color: var(--accent); }
.hero-subcopy { max-width: 610px; margin: 30px 0 0; color: #e0e1dd; font-size: clamp(1rem, 1.5vw, 1.25rem); font-weight: 650; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 0; padding: 0; list-style: none; }
.hero-facts li { border: 1px solid rgba(255,255,255,.24); border-radius: 99px; padding: 8px 14px; background: rgba(8, 11, 13, .42); backdrop-filter: blur(8px); font-size: .8rem; font-weight: 800; }
.hero-facts strong { color: #ff9a73; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero .button-outline:hover { background: #fff; color: #111; }

.quick-bar { background: var(--charcoal); color: var(--white); }
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.quick-item { min-height: 108px; display: flex; align-items: center; gap: 14px; padding: 22px 30px; border-right: 1px solid #353b3f; }
.quick-item:last-child { border-right: 0; }
.quick-item b { color: var(--accent); font-size: 1.8rem; line-height: 1; }
.quick-item span { display: block; color: #aeb3b1; font-size: .7rem; letter-spacing: .1em; }
.quick-item strong { display: block; margin-top: 3px; font-size: .98rem; }

.vehicle-card { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); overflow: hidden; border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.vehicle-image { min-height: 560px; background: #1b2023 url("hero-truck.png") center / cover no-repeat; }
.vehicle-copy { padding: clamp(34px, 5vw, 70px); }
.status { display: inline-flex; border: 1px solid var(--accent); border-radius: 99px; padding: 6px 12px; color: var(--accent); font-size: .72rem; font-weight: 900; }
.vehicle-copy h3 { margin: 20px 0 14px; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.1; letter-spacing: -.045em; }
.vehicle-copy p { color: var(--muted); }
.spec-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 30px 0; border-top: 1px solid var(--line); }
.spec-list div { padding: 15px 0; border-bottom: 1px solid var(--line); }
.spec-list div:nth-child(odd) { padding-right: 18px; }
.spec-list div:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--line); }
.spec-list dt { color: var(--muted); font-size: .72rem; }
.spec-list dd { margin: 4px 0 0; font-weight: 850; }
.caution { border-left: 3px solid var(--accent); padding: 14px 18px; background: color-mix(in srgb, var(--accent) 7%, transparent); font-size: .88rem; }

.use-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.use-card { min-height: 190px; padding: 28px 22px; border-top: 2px solid #444b4f; background: var(--charcoal-soft); }
.use-number { color: var(--accent); font-size: .72rem; font-weight: 900; }
.use-card h3 { margin: 34px 0 10px; font-size: 1rem; }
.use-card p { margin: 0; color: #b9bfbc; font-size: .78rem; }

.price-feature { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(30px, 5vw, 64px); background: var(--surface); box-shadow: var(--shadow); }
.price-main span { display: block; color: var(--muted); font-size: .8rem; font-weight: 800; }
.price-main strong { display: block; margin-top: 6px; color: var(--accent); font-size: clamp(3rem, 8vw, 6.4rem); line-height: 1; letter-spacing: -.06em; }
.price-main strong small { color: var(--ink); font-size: .28em; letter-spacing: 0; }
.price-sub { margin: 15px 0 0; font-weight: 750; }
.price-side { min-width: 270px; }
.price-side p { color: var(--muted); font-size: .85rem; }

.reservation-intro { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); gap: 64px; align-items: start; margin-bottom: 44px; }
.reservation-notes { padding: 24px; border: 1px solid #343b3f; background: var(--charcoal-soft); }
.reservation-notes p { margin: 0; color: #c6cbc8; font-size: .88rem; }
.reservation-notes p + p { margin-top: 14px; }
.airreserve-shell { max-width: 1080px; margin-inline: auto; overflow: hidden; border-radius: var(--radius); background: #fff; box-shadow: 0 22px 70px rgba(0,0,0,.25); }
.airreserve-wrapper { width: 100%; min-width: 0; height: 1000px; background: #fff; }
.airreserve-wrapper iframe { display: block; width: 100%; height: 1000px; border: 0; background: #fff; }
.airreserve-credit { padding: 13px 18px; background: #f4f4f2; color: #464a49; text-align: right; font-size: .72rem; }
.airreserve-credit a { color: #222; font-weight: 800; text-decoration: underline; }
.airreserve-credit img { display: inline-block; width: 12px; height: 12px; margin-left: 3px; vertical-align: -1px; }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding-top: 22px; border-top: 1px solid var(--line); }
.step::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 28px; color: var(--accent); font-size: .72rem; font-weight: 900; }
.step h3 { margin: 0; font-size: 1rem; }
.step p { margin: 10px 0 0; color: var(--muted); font-size: .8rem; }

.beginner-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.check-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid #3b4246; }
.check-list li { position: relative; padding: 17px 0 17px 30px; border-bottom: 1px solid #3b4246; color: #d0d4d2; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 900; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 24px 4px; cursor: pointer; list-style: none; font-weight: 850; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 800px; margin: 0; padding: 0 4px 24px; color: var(--muted); font-size: .9rem; }

.contact-panel { display: grid; grid-template-columns: 1fr 1fr; border-radius: var(--radius); overflow: hidden; background: var(--surface); box-shadow: var(--shadow); }
.contact-copy, .contact-actions { padding: clamp(34px, 5vw, 64px); }
.contact-actions { background: var(--charcoal); color: var(--white); }
.contact-actions .tel { display: block; margin: 12px 0 4px; font-size: clamp(2rem, 4.4vw, 3.8rem); font-weight: 900; line-height: 1; }
.contact-actions small { color: #aeb4b1; }
.contact-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.shop-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.shop-card { border-top: 1px solid var(--line); }
.shop-row { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.shop-row dt { color: var(--muted); font-size: .78rem; }
.shop-row dd { margin: 0; font-weight: 750; }
.shop-row a { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 4px; }

.page-hero { padding: 82px 0 60px; border-bottom: 1px solid var(--line); }
.page-hero h1 { margin: 0; font-size: clamp(2.8rem, 7vw, 5.8rem); line-height: 1.05; letter-spacing: -.06em; }
.page-hero p { max-width: 690px; margin: 20px 0 0; color: var(--muted); }
.content-section { padding: 70px 0 100px; }
.content-stack { display: grid; gap: 28px; }
.info-card { border: 1px solid var(--line); border-radius: 12px; padding: clamp(24px, 4vw, 42px); background: var(--surface); }
.info-card h2 { margin: 0 0 22px; font-size: clamp(1.5rem, 3vw, 2.3rem); }
.info-card h3 { margin: 28px 0 10px; }
.info-card p:last-child { margin-bottom: 0; }
.price-table { width: 100%; border-collapse: collapse; }
.price-table th, .price-table td { padding: 18px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.price-table th { color: var(--muted); font-size: .78rem; }
.price-table td strong { color: var(--accent); font-size: 1.25rem; }
.definition-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.definition-list div { padding: 20px; background: var(--surface-strong); }
.definition-list dt { color: var(--muted); font-size: .75rem; }
.definition-list dd { margin: 5px 0 0; font-weight: 850; }
.pdf-link { display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; font-weight: 900; text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 5px; }

.site-footer { padding: 66px 0 28px; background: #0e1214; color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 50px; padding-bottom: 50px; }
.footer-brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 900; letter-spacing: .1em; }
.footer-brand img { width: 42px; height: 42px; border-radius: 10px; }
.footer-brand strong { display: block; color: var(--accent); }
.footer-copy { max-width: 390px; margin-top: 22px; color: #adb3b0; font-size: .82rem; }
.footer-title { margin: 0 0 14px; color: #8d9591; font-size: .7rem; letter-spacing: .12em; }
.footer-links { display: grid; gap: 9px; font-size: .82rem; }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 24px; border-top: 1px solid #303639; color: #838b87; font-size: .7rem; }
.mobile-reserve { display: none; }

@media (prefers-color-scheme: dark) {
  :root { --bg: #15191b; --surface: #1e2427; --surface-strong: #252c2f; --ink: #f3f1e9; --muted: #aeb4b1; --line: #394145; --shadow: 0 18px 50px rgba(0,0,0,.3); }
  .site-header { background: rgba(17, 21, 23, .92); }
  .price-main strong small { color: var(--ink); }
  .button-dark { background: #f3f1e9; color: #171819; }
  .button-outline:hover { background: #fff; color: #111; }
  .airreserve-shell, .airreserve-wrapper, .airreserve-wrapper iframe { background: #fff; color-scheme: light; }
}

@media (max-width: 980px) {
  :root { --header-height: 68px; }
  .desktop-nav, .header-inner > .header-cta { display: none; }
  .menu-toggle { display: block; }
  .desktop-nav { position: fixed; inset: var(--header-height) 0 auto; display: none; padding: 16px 24px 28px; background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .desktop-nav.is-open { display: grid; }
  .desktop-nav a { min-height: 48px; display: flex; align-items: center; border-bottom: 1px solid var(--line); }
  .quick-grid { grid-template-columns: 1fr; }
  .quick-item { min-height: auto; border-right: 0; border-bottom: 1px solid #353b3f; }
  .vehicle-card, .reservation-intro, .beginner-grid, .contact-panel, .shop-grid { grid-template-columns: 1fr; }
  .vehicle-image { min-height: 420px; }
  .use-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  .container, .hero-content { width: min(calc(100% - 32px), var(--max)); }
  .section { padding: 74px 0; }
  .section-heading { display: block; margin-bottom: 34px; }
  .section-heading .section-lead { margin-top: 18px; }
  .brand { font-size: .58rem; }
  .brand img { width: 34px; height: 34px; }
  .brand strong { font-size: .78rem; }
  .hero { min-height: 690px; background-position: 66% center; }
  .hero::before { background: linear-gradient(90deg, rgba(8,11,13,.94), rgba(8,11,13,.72) 72%, rgba(8,11,13,.32)); }
  .hero-content { padding: 68px 0 108px; }
  .hero h1 { font-size: clamp(3.3rem, 17vw, 5.3rem); }
  .hero-subcopy { margin-top: 24px; font-size: .96rem; }
  .hero-facts { gap: 7px; }
  .hero-facts li { font-size: .72rem; }
  .hero-actions .button { width: 100%; }
  .quick-item { padding-inline: 20px; }
  .vehicle-image { min-height: 290px; }
  .vehicle-copy { padding: 30px 22px; }
  .spec-list { grid-template-columns: 1fr; }
  .spec-list div:nth-child(even) { padding-left: 0; border-left: 0; }
  .use-grid, .steps, .definition-list { grid-template-columns: 1fr; }
  .use-card { min-height: 150px; }
  .use-card h3 { margin-top: 22px; }
  .price-feature { grid-template-columns: 1fr; }
  .price-side { min-width: 0; }
  .airreserve-shell { width: calc(100% + 16px); margin-left: -8px; border-radius: 10px; }
  .airreserve-wrapper, .airreserve-wrapper iframe { height: 1080px; }
  .contact-copy, .contact-actions { padding: 30px 24px; }
  .shop-row { grid-template-columns: 1fr; gap: 3px; }
  .page-hero { padding: 60px 0 44px; }
  .content-section { padding: 48px 0 90px; }
  .info-card { padding: 25px 20px; }
  .price-table { display: block; overflow-x: auto; white-space: nowrap; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-grid > :first-child { grid-column: auto; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: 8px; }
  .mobile-reserve { position: fixed; left: 12px; right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); z-index: 180; display: flex; min-height: 54px; align-items: center; justify-content: center; border-radius: 6px; background: var(--accent); color: #fff; box-shadow: 0 12px 34px rgba(0,0,0,.28); font-size: .9rem; font-weight: 900; transition: opacity .2s ease, transform .2s ease; }
  .mobile-reserve.is-hidden { pointer-events: none; opacity: 0; transform: translateY(20px); }
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
  .site-footer { margin-bottom: calc(-76px - env(safe-area-inset-bottom)); padding-bottom: calc(104px + env(safe-area-inset-bottom)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}