:root {
  --color-primary: #155bf0;
  --color-primary-strong: #155bf0;
  --color-primary-hover: #104bd0;
  --color-primary-soft: #e3edff;
  --color-secondary: #155bf0;
  --color-secondary-soft: #d9edff;
  --color-ink: #242a32;
  --color-muted: #52606f;
  --color-plate-placeholder: #626c78;
  --color-consent-muted: #626c78;
  --color-consent-surface: #f7f9fc;
  --color-surface: #ffffff;
  --color-border: #d4deeb;
  --color-background: #f7f9fc;
  /* Quiet chapter surfaces; illustration and action colors stay independent. */
  --color-section-brand: #fbfcfa;
  --color-section-seller: #edf3f6;
  --color-section-buyer: #faf5e8;
  --color-section-dollar: #f0eff6;
  --color-section-care: #f6f3ee;
  --color-section-export: #d8f3fb;
  --color-section-start: #f4f7fb;
  --color-buyer: #ffe577;
  --color-dollar: #e9e8ff;
  --color-dollar-strong: #5b48d5;
  --color-care: #fff8ee;
  --color-care-strong: #dd6b2d;
  --color-export: #d8f3fb;
  --color-export-strong: #178c9d;
  --radius-control: 12px;
  --radius-card: 28px;
  --radius-popover: 20px;
  --shadow-popover: 0 16px 48px #162d321f, 0 2px 8px #162d320a;
  --duration-ui: 160ms;
  --ink: var(--color-ink);
  --aqua: var(--color-primary);
  --blue: var(--color-secondary);
}
.hero{background:var(--color-background)}
/* One composition: bounded task column and an unboxed, proportional scene. */
main>.hero-with-lookup{height:auto;min-height:100svh;display:grid;grid-template-columns:minmax(0,1fr);padding:calc(var(--header-height) + 32px) var(--page-gutter) 104px;gap:0;align-items:center;isolation:isolate}
.hero-layout{display:grid;grid-template-columns:minmax(0,480px) minmax(0,1fr);gap:48px;width:100%;min-width:0;max-width:1240px;margin-inline:auto;align-items:center}
.hero-main{display:flex;flex-direction:column;justify-content:center;gap:32px;min-width:0}
.hero-with-lookup .hero-copy,body.is-rtl-language .hero-with-lookup .hero-copy{width:100%;max-width:none;text-align:start}
.hero-with-lookup .label{margin:0 0 16px;font-size:14px;color:var(--color-muted)}
.hero-with-lookup h1{max-width:none;margin:0;font-size:clamp(42px,4vw,56px);line-height:1.18;letter-spacing:-.035em;text-wrap:balance;overflow-wrap:anywhere}
.hero-with-lookup h1 span{color:var(--color-primary-strong)}
.hero-with-lookup .hero-copy .lead{max-width:38em;margin:24px 0 0;font-size:16px;line-height:1.75;color:var(--color-muted)}
.hero-with-lookup .lead br{display:initial}
.hero-with-lookup .hero-action{width:100%;min-width:0;text-align:start}
.hero-with-lookup .hero-action .vehicle-lookup{max-width:none;margin:0}
.hero-with-lookup .hero-action .vehicle-lookup h2{text-align:start;font-size:22px;margin-bottom:16px}
.hero-with-lookup .hero-action .lookup-controls{max-width:none;margin:0}
.hero-with-lookup .hero-action .lookup-feedback{text-align:end}
.hero-companion{display:flex;align-items:center;justify-content:center;width:100%;min-width:0;padding-block:24px}
.hero-with-lookup .hero-companion .connection-scene{width:100%;min-width:0;max-width:100%;margin:0}
@media(min-width:1100px) and (max-height:800px){main>.hero-with-lookup{padding-top:calc(var(--header-height) + 24px);padding-bottom:96px}.hero-main{gap:24px}.hero-with-lookup h1{font-size:clamp(40px,6.5svh,48px)}.hero-with-lookup .hero-copy .lead{margin-top:16px;font-size:15px}}
@media(max-width:1099px){.hero-layout{grid-template-columns:minmax(0,1fr);max-width:600px;gap:24px}.hero-main{gap:32px}.hero-companion{padding:8px 0 16px}.hero-with-lookup .hero-companion .connection-scene{max-width:560px}}
#scene[data-chapter="home"]{visibility:hidden}
header .mobile-menu{flex-shrink:0}
header .mobile-menu summary{white-space:nowrap}
@media(max-width:600px){header .logo{font-size:24px}header .mobile-menu summary{gap:6px;padding-inline:10px}}
@media(max-width:600px){main>.hero-with-lookup{padding:calc(var(--header-height) + 24px) 24px 104px}.hero-with-lookup h1{font-size:clamp(34px,10vw,40px);line-height:1.18}.hero-with-lookup .label{font-size:12px;margin-bottom:12px}.hero-with-lookup .hero-copy .lead{font-size:14px;margin-top:16px}.hero-with-lookup .lead br{display:none}.hero-main{gap:24px}.hero-with-lookup .hero-action .vehicle-lookup h2{font-size:20px;margin-bottom:12px}}
/* Shared rhythm across the explanatory chapters, without changing their copy. */
main>.panel:not(.hero) .label{margin-bottom:24px;color:var(--color-muted);font-size:22px;font-weight:700;line-height:1.4;letter-spacing:-.02em}
/* Requested role headings: identify the audience before the benefit headline. */
main>.panel:not(.hero) .benefit-label{color:var(--benefit-accent,var(--color-primary-strong))}
main>.panel:not(.hero) h2{font-size:clamp(40px,min(4.5vw,7svh),72px);line-height:1.2;letter-spacing:-.03em}
main>.panel:not(.hero) .lead{margin-top:24px;font-size:18px;line-height:1.75}
.service-tabs button{min-height:48px}
.service-detail{border:0;box-shadow:0 12px 32px #162d3208}
.faq{max-width:800px}
.faq summary{padding-block:24px;font-weight:700}
.faq p{max-width:66ch}
/* Use native Japanese line-break opportunities rather than Korean keep-all. */
html[lang="ja"] :is(h1,h2,h3,p,li,summary,button){word-break:normal;line-break:strict;overflow-wrap:anywhere}
#start h2 .faq-title-phrase{display:inline-block;white-space:nowrap;color:inherit}
@media(min-width:1024px) and (max-height:800px){.seller-visual{padding-top:72px}.seller-stamp{width:112px;height:112px;font-size:20px}.seller-visual>img{max-height:250px;object-fit:contain}.seller-route{margin-block:16px}.benefit-poster>div{min-height:160px;padding:24px 28px}.benefit-poster strong{font-size:28px}.currency-visual{padding-top:32px}.currency-slip{padding:24px}.currency-slip dl>div{padding-block:12px}}
@media(max-width:600px){main>.panel:not(.hero) h2{font-size:clamp(36px,9.5vw,52px)}main>.panel:not(.hero) .lead{font-size:16px;margin-top:20px}.benefit-poster>div{padding:24px}.benefit-poster strong{font-size:28px}}
.hero-with-lookup .hero-secondary{position:fixed;z-index:10;inset-inline-start:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);display:inline-flex;align-items:center;justify-content:center;gap:10px;width:max-content;max-width:calc(100% - 48px);min-height:48px;margin:0;padding:12px 20px;background:var(--color-surface);border:0;border-radius:999px;box-shadow:0 6px 24px #183d3626;color:var(--color-ink);font-size:14px;font-weight:700;line-height:1.5;text-align:center;text-decoration:none}
.hero-with-lookup .hero-secondary[hidden]{display:none}
.hero-secondary svg{flex:none}
/* Shared action grammar: one blue primary, outlined secondary, text links. */
.ui-button,header .external-nav .lookup-nav,.start-links a,.service-tabs button,#motion,header .mobile-menu summary{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border:1px solid var(--color-primary-strong);border-radius:var(--radius-control);background:transparent;color:var(--color-primary-strong);font:inherit;font-size:16px;font-weight:700;line-height:1.4;text-align:center;transition:background var(--duration-ui) ease-out,transform var(--duration-ui) ease-out}
.ui-button-primary,header .external-nav .lookup-nav,.service-tabs button[aria-pressed="true"]{background:var(--color-primary-strong);color:var(--color-surface)}
.ui-button:disabled{background:var(--color-consent-surface);border-color:var(--color-border);color:var(--color-consent-muted);cursor:not-allowed;transform:none;opacity:1}
header .external-nav .lookup-nav,#motion,header .mobile-menu summary{min-height:44px;padding:10px 14px;font-size:13px}
.start-links a:nth-child(2){background:transparent;color:var(--color-primary-strong)}
.service-tabs button{flex:1}
.text-link{color:var(--color-primary-strong);border-color:currentColor}
:where(a,button,summary):focus-visible{outline:3px solid var(--color-primary-strong);outline-offset:4px}
:where(.ui-button,.start-links a,.service-tabs button,.language-trigger,.lookup-nav):active:not(:disabled){transform:scale(.98)}
@media(hover:hover) and (pointer:fine){.ui-button-primary:not(:disabled):hover,header .external-nav .lookup-nav:hover{background:var(--color-primary-hover)}.start-links a:hover,.service-tabs button:not([aria-pressed="true"]):hover{background:var(--color-primary-soft)}.hero-with-lookup .hero-secondary:hover{background:var(--color-primary-soft);color:var(--color-ink)}}
@media(prefers-reduced-motion:reduce){.ui-button,.start-links a,.service-tabs button,.language-trigger,.lookup-nav{transition:none;transform:none!important}}
@media(max-width:1023px){header .external-nav .lookup-nav{display:none}}
/* Story artwork keeps its original green accents independently of blue form controls. */
#buyer,#care,#journey{--color-primary:#31d6c7;--color-primary-strong:#0a7768;--color-primary-hover:#086456;--color-primary-soft:#b8eee8;--color-border:#dbe9e7}
.brand{background:var(--color-section-brand)}
.seller{background:var(--color-section-seller);--color-muted:#436886;--benefit-accent:var(--color-secondary)}
.seller h2 span{color:var(--color-secondary)}
.buyer{background:var(--color-section-buyer);--color-muted:#685a24}
#buyer .lead,#buyer .fine{overflow-wrap:anywhere}
.dollar{background:var(--color-section-dollar);--color-muted:#69637b;--benefit-accent:var(--color-dollar-strong)}
.dollar h2 span{color:var(--color-dollar-strong)}
@media(max-width:600px){main>.panel:not(.hero) .label{font-size:20px;margin-bottom:20px}}
.care{background:var(--color-section-care);--color-muted:#76634f}
.care h2 span{color:var(--color-care-strong)}
.export{background:var(--color-section-export);--color-muted:#486d76}
.export h2 span{color:var(--color-export-strong)}
.start{background:var(--color-section-start)}
.start h2 span{color:var(--color-primary-strong)}
.care .fine,.export .fine,.currency-slip>p{color:var(--color-muted)}
/* Blur the chapter underneath without adding a white tint. */
header[data-surface="section"]{background:transparent;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:none}
header[data-surface="section"] .language-trigger:not(:hover):not([aria-expanded="true"]){background:transparent}
header:focus-within,header:has(.mobile-menu[open]),header:has(.language-trigger[aria-expanded="true"]){transform:none;pointer-events:auto}
.language-picker{position:relative;flex-shrink:0}
.language-trigger{display:flex;align-items:center;justify-content:center;gap:6px;min-width:56px;min-height:44px;padding:0 10px;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-surface);color:var(--color-ink);font-size:13px;white-space:nowrap;transition:background var(--duration-ui),border-color var(--duration-ui)}
.language-trigger:hover,.language-trigger[aria-expanded="true"]{background:var(--color-primary-soft);border-color:var(--color-primary-strong)}
.language-chevron{transition:transform var(--duration-ui)}
.language-trigger[aria-expanded="true"] .language-chevron{transform:rotate(180deg)}
.language-popover{position:absolute;top:calc(100% + 8px);right:0;width:244px;max-width:calc(100vw - 32px);max-height:calc(100dvh - var(--header-height) - 32px);overflow:auto;overscroll-behavior:contain;padding:10px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-popover);box-shadow:var(--shadow-popover);z-index:50}
.language-popover[hidden]{display:none}
.language-heading{display:flex;justify-content:space-between;gap:12px;margin:6px 10px 12px;color:var(--color-muted);font-size:10px;font-weight:700;letter-spacing:.12em}
.language-heading span{letter-spacing:0;font-weight:400}
.language-popover button{width:100%;min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 12px;border:0;border-radius:12px;background:transparent;color:var(--color-ink);text-align:left}
.language-popover button:hover,.language-popover button:focus-visible{background:var(--color-background)}
.language-popover button:focus-visible,.language-trigger:focus-visible{outline:2px solid var(--color-primary-strong);outline-offset:2px}
.language-popover button[aria-checked="true"]{background:var(--color-primary-soft);color:var(--color-primary-strong)}
.language-popover strong,.language-popover small{display:block}
.language-popover strong{font-size:14px;line-height:1.4}
.language-popover small{font-size:11px;color:var(--color-muted);line-height:1.6}
.language-check{visibility:hidden;flex-shrink:0}
[aria-checked="true"] .language-check{visibility:visible}
@media(max-width:760px){header .external-nav{display:none}}
@media(max-width:600px){.language-trigger{padding:0 10px;gap:6px;font-size:12px}}
@media(prefers-reduced-motion:reduce){.language-trigger,.language-chevron{transition:none}}