:root {
  color-scheme: light;
  --accent: #255bcf;
  --accent-dark: #1746ad;
  --ink: #15171c;
  --muted: #5e6470;
  --line: #dce0e7;
  --soft-line: #edf0f4;
  --surface: #ffffff;
  --soft: #f5f7fa;
  --blue-soft: #eff5ff;
  --shadow: 0 18px 50px rgb(19 31 57 / 12%);
  --radius: 18px;
  --content: 1280px;
  --reading: 760px;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  font-synthesis: none;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); color: var(--ink); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; }
code { overflow-wrap: anywhere; padding: .12em .35em; border-radius: 5px; background: var(--soft); font-size: .9em; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; left: 16px; top: 12px; transform: translateY(-150%); padding: 9px 14px; border-radius: 8px; background: var(--ink); color: #fff; text-decoration: none; }
.skip-link:focus { transform: translateY(0); }

:focus-visible { outline: 3px solid #78a1ff; outline-offset: 4px; border-radius: 4px; }
main:focus { outline: none; }

.site-header { position: relative; z-index: 20; border-bottom: 1px solid var(--soft-line); background: rgb(255 255 255 / 96%); }
.header-inner, .footer-inner { width: min(calc(100% - 48px), var(--content)); margin-inline: auto; display: flex; align-items: center; }
.header-inner { min-height: 76px; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-size: 29px; font-weight: 760; letter-spacing: -.04em; line-height: 1; }
.brand img { width: 42px; height: 42px; border-radius: 50%; }
.site-nav { display: flex; align-items: stretch; align-self: stretch; gap: 42px; }
.site-nav a { position: relative; display: grid; place-items: center; min-height: 48px; color: #26282e; text-decoration: none; font-size: 15px; font-weight: 610; }
.site-nav a::after { content: ""; position: absolute; inset-inline: 0; bottom: 0; height: 3px; background: var(--accent); transform: scaleX(0); transform-origin: center; transition: transform .18s ease; }
.site-nav a:hover { color: var(--accent); }
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); }
.site-nav a[aria-current="page"] { color: var(--accent); }
.site-nav .language-link { margin-left: 2px; padding-left: 26px; border-left: 1px solid var(--line); color: var(--accent-dark); }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 9px; background: transparent; color: var(--ink); }
.nav-toggle > span:not(.visually-hidden) { display: block; width: 23px; height: 2px; margin: 4px auto; border-radius: 2px; background: currentColor; transition: transform .18s ease, opacity .18s ease; }

.hero { width: min(calc(100% - 64px), var(--content)); min-height: 680px; margin-inline: auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .52fr); align-items: center; gap: clamp(48px, 7vw, 104px); padding: 66px 44px 78px; }
.hero-copy { min-width: 0; max-width: 760px; }
.hero-eyebrow, .section-kicker { margin: 0 0 18px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .14em; line-height: 1.4; }
.hero h1 { margin: 0; font-size: clamp(50px, 5vw, 76px); line-height: 1.12; letter-spacing: -.06em; font-weight: 800; }
.mobile-break { display: none; }
.hero-line { white-space: normal; }
.no-break { white-space: nowrap; }
.hero-lead { max-width: 670px; margin: 28px 0 0; color: #30343c; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.8; }
.hero-promise { max-width: 640px; margin: 30px 0 0; padding: 18px 0; border-block: 1px solid var(--accent); color: var(--accent-dark); font-size: 16px; }
.hero-promise strong { color: var(--ink); font-size: 19px; }
.status-note { margin-top: 24px; padding: 2px 0 2px 16px; border-left: 3px solid var(--line); display: grid; gap: 2px; color: #4d5563; }
.status-note strong { font-size: 14px; }
.status-note span { color: var(--muted); font-size: 14px; }
.hero-media { display: grid; place-items: center; }
.phone-frame { width: min(274px, 78vw); padding: 11px; border: 4px solid #151515; border-radius: 48px; background: #151515; box-shadow: var(--shadow); }
.phone-frame img { width: 100%; height: auto; border-radius: 36px; }

.drive-prerequisite { width: min(calc(100% - 64px), var(--content)); margin: 0 auto; padding: 72px 44px; background: var(--blue-soft); border-block: 1px solid #c9d5ec; display: grid; grid-template-columns: minmax(300px, .75fr) minmax(0, 1fr); gap: clamp(56px, 9vw, 130px); }
.drive-prerequisite h2 { margin: 0; font-size: clamp(36px, 4.1vw, 58px); line-height: 1.2; letter-spacing: -.05em; }
.drive-prerequisite-body { max-width: 700px; }
.drive-prerequisite-lead { margin: 0; color: var(--ink); font-size: clamp(20px, 2vw, 27px); font-weight: 690; line-height: 1.65; }
.drive-prerequisite-list { margin: 32px 0 0; border-block: 2px solid var(--accent); }
.drive-prerequisite-list div { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 15px 0; border-top: 1px solid #a9bde9; }
.drive-prerequisite-list div:first-child { border-top: 0; }
.drive-prerequisite-list dt { color: var(--accent); font-weight: 800; }
.drive-prerequisite-list dd { margin: 0; color: #30343c; }
.drive-prerequisite-note { margin: 18px 0 0; color: #4d5563; font-size: 14px; line-height: 1.7; }

.ownership { width: min(calc(100% - 64px), var(--content)); margin-inline: auto; padding: 96px 44px; border-top: 1px solid var(--soft-line); display: grid; grid-template-columns: minmax(300px, .75fr) minmax(0, 1fr); gap: clamp(56px, 9vw, 130px); }
.ownership h2, .purchase-statement h2 { margin: 0; font-size: clamp(36px, 4.1vw, 58px); line-height: 1.2; letter-spacing: -.05em; }
.ownership-body { max-width: 660px; }
.ownership-body > p { margin: 0; color: var(--muted); font-size: 16px; }
.ownership-body .ownership-lead { color: var(--ink); font-size: clamp(20px, 2vw, 27px); font-weight: 690; line-height: 1.65; }
.ownership-body .ownership-lead + p { margin-top: 18px; }
.ownership-list { margin: 38px 0 0; border-block: 2px solid var(--accent); }
.ownership-list div { display: grid; grid-template-columns: 86px 1fr; gap: 20px; padding: 17px 0; border-top: 1px solid #a9bde9; }
.ownership-list div:first-child { border-top: 0; }
.ownership-list dt { color: var(--accent); font-weight: 800; }
.ownership-list dd { margin: 0; color: #30343c; }

.purchase-statement { padding: 86px max(32px, calc((100vw - var(--content)) / 2)); background: var(--blue-soft); display: grid; grid-template-columns: minmax(560px, 1.05fr) minmax(300px, .95fr); align-items: end; gap: clamp(52px, 6vw, 88px); }
.purchase-line { white-space: nowrap; }
.purchase-statement > p { max-width: 630px; margin: 0; padding-top: 24px; border-top: 3px solid var(--accent); color: #344056; font-size: 18px; line-height: 1.85; }

.principles { border-block: 1px solid var(--soft-line); padding: 86px max(32px, calc((100vw - var(--content)) / 2)); }
.section-heading { max-width: 720px; margin-bottom: 42px; }
.section-heading h2 { margin: 0; font-size: clamp(29px, 3vw, 42px); line-height: 1.3; letter-spacing: -.035em; }
.section-heading p { margin: 12px 0 0; color: var(--muted); }
.principle-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.principle { min-width: 0; padding: 2px 42px 0; border-left: 1px solid var(--line); }
.principle:first-child { padding-left: 0; border-left: 0; }
.principle:last-child { padding-right: 0; }
.line-icon { width: 43px; height: 43px; color: var(--accent); }
.line-icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.principle h3 { margin: 18px 0 8px; font-size: 19px; line-height: 1.45; letter-spacing: -.015em; }
.principle p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }

.development-progress { width: min(calc(100% - 64px), var(--content)); margin: 72px auto 0; padding: 86px 44px; border-block: 1px solid var(--soft-line); }
.development-progress .section-heading { max-width: 840px; margin-bottom: 38px; }
.progress-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.progress-card { min-width: 0; padding: 30px 32px 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--soft); }
.progress-card-complete { border-color: #b7caef; background: var(--blue-soft); }
.progress-label { margin: 0 0 9px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .11em; line-height: 1.4; text-transform: uppercase; }
.progress-card h3 { margin: 0; font-size: 23px; line-height: 1.35; letter-spacing: -.025em; }
.progress-card ul { margin: 18px 0 0; padding-left: 1.3em; color: #30343c; }
.progress-card li + li { margin-top: 7px; }
.progress-note { margin: 20px 0 0; padding-top: 14px; border-top: 1px solid #c9d5ec; color: var(--muted); font-size: 13px; line-height: 1.7; }
.screen-gallery { width: min(calc(100% - 64px), var(--content)); margin: 0 auto; padding: 86px 44px 94px; }
.screen-gallery .section-heading { max-width: 820px; }
.screen-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.screen-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.screen-card { min-width: 0; margin: 0; }
.screen-card img { width: 100%; height: auto; border: 1px solid var(--line); border-radius: 22px; background: var(--soft); box-shadow: 0 12px 30px rgb(19 31 57 / 9%); }
.screen-card figcaption { display: grid; gap: 3px; padding: 14px 3px 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.screen-card figcaption strong { color: var(--ink); font-size: 13px; }

.safety-band { background: var(--ink); color: #fff; }
.safety-band, .support-callout { width: min(calc(100% - 64px), var(--content)); margin: 72px auto; border-radius: var(--radius); }
.safety-band { min-height: 470px; padding: 72px clamp(38px, 6vw, 80px); display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 64px; }
.safety-copy { max-width: 830px; }
.safety-band h2 { margin: 0; font-size: clamp(39px, 4.1vw, 58px); line-height: 1.18; letter-spacing: -.045em; }
.safety-band p { max-width: 760px; margin: 22px 0 0; color: #d4d8e2; font-size: 17px; line-height: 1.85; }
.safety-rules { margin: 38px 0 0; border-top: 1px solid #454b58; }
.safety-rules div { display: grid; grid-template-columns: 190px 1fr; gap: 26px; padding: 15px 0; border-bottom: 1px solid #454b58; }
.safety-rules dt { color: #9ec0ff; font-weight: 750; }
.safety-rules dd { margin: 0; color: #f0f2f7; }
.safety-band .text-link { color: #9ec0ff; }
.support-callout { margin-top: 0; padding: 42px 46px; background: var(--soft); display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.support-callout h2 { margin: 0; font-size: 24px; line-height: 1.4; letter-spacing: -.02em; }
.support-callout p { max-width: 800px; margin: 8px 0 0; font-size: 15px; line-height: 1.75; }
.support-callout p { color: var(--muted); }
.text-link { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .2em; }
.with-arrow { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; font-weight: 650; text-decoration: none; }
.with-arrow span { font-size: 22px; transition: transform .18s ease; }
.with-arrow:hover span { transform: translateX(4px); }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 96px; justify-content: space-between; gap: 28px; }
.brand-small { gap: 8px; font-size: 19px; }
.brand-small img { width: 30px; height: 30px; }
.site-footer nav { display: flex; gap: 32px; }
.site-footer nav a { color: var(--muted); text-decoration: none; font-size: 13px; }
.site-footer nav a:hover, .site-footer nav a[aria-current="page"] { color: var(--accent); }
.site-footer p { max-width: 360px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; text-align: right; }

.document-layout { width: min(calc(100% - 64px), 1180px); margin: 0 auto; display: grid; grid-template-columns: 230px minmax(0, var(--reading)); gap: clamp(52px, 8vw, 100px); justify-content: center; padding: 62px 0 100px; }
.document-toc { position: sticky; top: 36px; align-self: start; max-height: calc(100vh - 72px); overflow: auto; padding-right: 28px; border-right: 1px solid var(--line); }
.document-toc h2 { margin: 0 0 16px; font-size: 15px; }
.document-toc ol { margin: 0; padding-left: 1.5em; color: var(--accent); }
.document-toc li { padding: 3px 0; font-size: 13px; }
.document-toc a { text-decoration: none; }
.document-toc a:hover { text-decoration: underline; text-underline-offset: .2em; }
.document-article { min-width: 0; }
.document-header { padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.document-header h1 { margin: 0; font-size: clamp(38px, 5vw, 55px); line-height: 1.25; letter-spacing: -.045em; }
.document-header p { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.notice-box { margin: 28px 0 42px; padding: 19px 22px; border-left: 4px solid var(--accent); background: var(--blue-soft); display: grid; grid-template-columns: 26px 1fr; gap: 15px; }
.notice-box svg { width: 26px; height: 26px; color: var(--accent); fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; }
.notice-box strong { color: var(--accent-dark); }
.notice-box p { margin: 3px 0 0; color: #344056; font-size: 14px; }
.document-article section { scroll-margin-top: 28px; margin-top: 38px; }
.document-article section h2 { margin: 0 0 10px; font-size: 22px; line-height: 1.45; letter-spacing: -.02em; }
.document-article section h3 { margin: 24px 0 6px; font-size: 17px; }
.document-article p { margin: 10px 0; color: #30343b; }
.document-article ul { margin: 12px 0; padding-left: 1.45em; color: #30343b; }
.document-article li + li { margin-top: 4px; }

.support-page { width: min(calc(100% - 64px), 1040px); margin-inline: auto; padding: 72px 0 100px; }
.support-hero { max-width: 760px; margin-bottom: 46px; }
.support-hero h1 { margin: 0; font-size: clamp(46px, 6vw, 68px); line-height: 1.15; letter-spacing: -.05em; }
.support-hero p { margin: 16px 0 0; color: var(--muted); font-size: 19px; }
.support-status { margin-bottom: 72px; padding: 30px 34px; border-left: 4px solid var(--accent); background: var(--blue-soft); display: flex; justify-content: space-between; align-items: center; gap: 32px; }
.support-status h2 { margin: 0; font-size: 21px; }
.support-status p { max-width: 740px; margin: 7px 0 0; color: #344056; }
.faq .section-heading { margin-bottom: 24px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 54px 24px 4px; cursor: pointer; list-style: none; font-size: 17px; font-weight: 700; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before, .faq-list summary::after { content: ""; position: absolute; right: 10px; top: 50%; width: 18px; height: 2px; background: var(--accent); transition: transform .18s ease; }
.faq-list summary::after { transform: rotate(90deg); }
.faq-list details[open] summary::after { transform: rotate(0); }
.faq-list details > div { padding: 0 54px 23px 4px; color: var(--muted); }
.faq-list details p { margin: 0; }
.contact-panel { margin-top: 72px; padding: 36px 40px; border-radius: var(--radius); background: var(--soft); }
.contact-panel h2 { margin: 0; font-size: 25px; }
.contact-panel p { margin: 10px 0 0; color: var(--muted); }

@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr) 250px; gap: 38px; padding-inline: 10px; }
  .hero h1 { font-size: clamp(43px, 6vw, 58px); }
  .ownership { grid-template-columns: minmax(240px, .65fr) minmax(0, 1fr); gap: 52px; padding-inline: 10px; }
  .purchase-statement { grid-template-columns: 1fr 1fr; gap: 52px; }
  .purchase-line { white-space: normal; }
  .principle { padding-inline: 26px; }
  .document-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 42px; }
  .development-progress, .screen-gallery { padding-inline: 10px; }
  .screen-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 18px; }
}

@media (max-width: 720px) {
  .header-inner, .footer-inner, .hero, .drive-prerequisite, .ownership, .safety-band, .support-callout, .document-layout, .support-page { width: min(calc(100% - 36px), var(--content)); }
  .header-inner { min-height: 66px; }
  .brand { font-size: 24px; }
  .brand img { width: 36px; height: 36px; }
  .js .nav-toggle { display: block; }
  .js .site-nav { position: absolute; top: calc(100% + 1px); inset-inline: 0; display: none; padding: 8px 18px 18px; border-bottom: 1px solid var(--line); background: #fff; box-shadow: 0 14px 28px rgb(25 35 58 / 8%); }
  .js .site-nav[data-open="true"] { display: grid; }
  .js .site-nav a { justify-items: start; padding: 9px 12px; }
  .js .site-nav .language-link { margin: 6px 0 0; padding-top: 15px; border-top: 1px solid var(--line); border-left: 0; }
  .js .site-nav a::after { display: none; }
  .js .nav-toggle[aria-expanded="true"] > span:nth-of-type(2) { transform: translateY(6px) rotate(45deg); }
  .js .nav-toggle[aria-expanded="true"] > span:nth-of-type(3) { opacity: 0; }
  .js .nav-toggle[aria-expanded="true"] > span:nth-of-type(4) { transform: translateY(-6px) rotate(-45deg); }
  .site-nav { gap: 20px; }
  .hero { min-height: 0; grid-template-columns: 1fr; gap: 48px; padding: 52px 0 64px; }
  .hero h1 { font-size: clamp(35px, 10.5vw, 46px); }
  .mobile-break { display: block; }
  .hero-phrase { white-space: nowrap; }
  .hero-line { overflow-wrap: anywhere; white-space: normal; }
  .hero-lead { font-size: 18px; }
  .hero-promise { font-size: 15px; }
  .hero-promise strong { font-size: 17px; }
  .status-note strong { font-size: 15px; }
  .phone-frame { width: min(242px, 68vw); }
  .drive-prerequisite { grid-template-columns: 1fr; gap: 34px; padding: 58px 0; }
  .drive-prerequisite h2 { font-size: clamp(34px, 10vw, 44px); }
  .drive-prerequisite-lead { font-size: 20px; }
  .drive-prerequisite-list div { grid-template-columns: 1fr; gap: 4px; }
  .ownership { grid-template-columns: 1fr; gap: 34px; padding: 62px 0; }
  .ownership h2, .purchase-statement h2 { font-size: clamp(34px, 10vw, 44px); }
  .ownership-list { margin-top: 30px; }
  .ownership-list div { grid-template-columns: 64px 1fr; gap: 14px; }
  .purchase-statement { padding: 62px 18px; grid-template-columns: 1fr; align-items: start; gap: 34px; }
  .purchase-statement > p { padding-top: 20px; font-size: 16px; }
  .principles { padding: 58px 18px; }
  .principle-grid { grid-template-columns: 1fr; gap: 0; }
  .principle { padding: 30px 0; border-left: 0; border-top: 1px solid var(--line); }
  .principle:first-child { padding-top: 0; border-top: 0; }
  .principle:last-child { padding-bottom: 0; }
  .development-progress, .screen-gallery { padding: 58px 0; }
  .progress-grid { grid-template-columns: 1fr; gap: 16px; }
  .progress-card { padding: 26px 22px 24px; }
  .screen-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 14px; }
  .screen-card img { border-radius: 17px; }
  .safety-band { min-height: 0; grid-template-columns: 1fr; align-items: start; gap: 34px; }
  .safety-band, .support-callout, .support-status { align-items: flex-start; gap: 22px; }
  .support-callout, .support-status { flex-direction: column; }
  .safety-band, .support-callout { margin-block: 48px; padding: 38px 24px; }
  .safety-band h2 { font-size: clamp(34px, 10vw, 44px); }
  .safety-band p { font-size: 15px; }
  .safety-rules div { grid-template-columns: 1fr; gap: 4px; }
  .footer-inner { padding: 30px 0; flex-wrap: wrap; }
  .site-footer p { flex-basis: 100%; max-width: none; text-align: left; }
  .site-footer nav { order: 3; flex-basis: 100%; justify-content: space-between; gap: 14px; }
  .document-layout { display: block; padding: 44px 0 72px; }
  .document-toc { position: static; max-height: none; margin-bottom: 42px; padding: 22px 24px; border: 1px solid var(--line); border-radius: 12px; background: var(--soft); }
  .document-toc ol { columns: 2; column-gap: 28px; }
  .document-toc li { break-inside: avoid; }
  .document-header h1 { font-size: 39px; }
  .notice-box { grid-template-columns: 24px 1fr; padding: 17px; }
  .support-page { padding: 48px 0 72px; }
  .support-status { padding: 25px 24px; }
  .contact-panel { padding: 28px 24px; }
}

@media (max-width: 420px) {
  body { font-size: 15px; }
  .header-inner, .footer-inner, .hero, .drive-prerequisite, .ownership, .safety-band, .support-callout, .document-layout, .support-page { width: calc(100% - 28px); }
  .hero h1 { font-size: clamp(33px, 10.7vw, 42px); }
  .hero-lead { font-size: 16px; }
  .document-header h1 { font-size: clamp(30px, 8vw, 34px); letter-spacing: -.035em; }
  .document-toc ol { columns: 1; }
  .status-note { padding-left: 14px; }
  .site-footer nav { flex-wrap: wrap; justify-content: flex-start; }
  .screen-grid, .screen-grid-three { grid-template-columns: 1fr; }
}

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

@media print {
  @page { margin: 18mm; }
  body { color: #000; font-size: 11pt; }
  .site-header, .site-footer, .document-toc, .nav-toggle, .support-callout { display: none !important; }
  .document-layout, .support-page, .hero { width: 100%; display: block; padding: 0; }
  .document-article { max-width: none; }
  .notice-box, .support-status, .contact-panel { break-inside: avoid; border: 1px solid #999; background: transparent; }
  a { color: inherit; text-decoration: underline; }
  a[href]::after { content: none; }
}