:root {
  --ink: #14211c;
  --muted: #5e6963;
  --paper: #f7f4ed;
  --paper-2: #efebe2;
  --white: #fffefa;
  --sage: #aebcae;
  --sage-dark: #536b5d;
  --line: rgba(20, 33, 28, 0.14);
  --shadow: 0 24px 70px rgba(23, 37, 30, 0.12);
  --radius: 26px;
  --shell: min(1180px, calc(100% - 40px));
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans JP", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.035em; }
h1 { font-size: clamp(3rem, 7vw, 6.9rem); font-weight: 540; }
h2 { font-size: clamp(2.1rem, 4vw, 4.2rem); font-weight: 530; }
h3 { font-size: clamp(1.35rem, 2vw, 1.85rem); font-weight: 570; }
p { color: var(--muted); }

.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; 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: 100; top: 12px; left: 12px; padding: 10px 14px; background: var(--ink); color: white; transform: translateY(-140%); }
.skip-link:focus { transform: translateY(0); }
.eyebrow { margin: 0 0 18px; color: var(--sage-dark); font-size: .72rem; font-weight: 760; letter-spacing: .18em; text-transform: uppercase; }

.site-header { position: sticky; z-index: 50; top: 0; border-bottom: 1px solid transparent; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(18px); }
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 1.28rem; font-weight: 680; letter-spacing: -.04em; }
.brand-mark { width: 32px; height: 32px; }
.brand-mark path, .brand-mark circle { fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.brand-mark circle { fill: currentColor; stroke: none; }
.site-nav { display: flex; align-items: center; gap: 32px; color: #324039; font-size: .88rem; font-weight: 610; }
.site-nav > a:not(.locale-switch) { position: relative; }
.site-nav > a:not(.locale-switch)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 1px; background: currentColor; transition: right .25s ease; }
.site-nav > a:hover::after, .site-nav > a:focus-visible::after { right: 0; }
.locale-switch { padding: 9px 15px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.35); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 11px; border: 0; background: transparent; }
.menu-toggle span:not(.sr-only) { display: block; height: 1px; margin: 6px 0; background: var(--ink); }

.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 13px 20px; border: 1px solid var(--line); border-radius: 999px; font-size: .88rem; font-weight: 690; transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg, .text-link svg, .market-grid svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.button-dark { border-color: var(--ink); color: var(--white); background: var(--ink); box-shadow: 0 12px 32px rgba(20,33,28,.16); }
.button-dark:hover { background: #273a31; }
.button-light { background: rgba(255,255,255,.55); }
.button-light:hover { background: white; }
.button-small { min-height: 42px; padding: 10px 15px; font-size: .78rem; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--ink); font-size: .84rem; font-weight: 720; }

.hero { min-height: calc(100vh - 82px); display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: clamp(32px, 6vw, 84px); padding-block: 70px 90px; }
.hero h1 { max-width: 810px; margin-bottom: 26px; }
.hero-lead { max-width: 650px; font-size: clamp(1.08rem, 1.8vw, 1.32rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.hero-note { margin-top: 28px; display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .78rem; }
.hero-note span { width: 8px; height: 8px; border-radius: 50%; background: #75a47f; box-shadow: 0 0 0 5px rgba(117,164,127,.14); }
.hero-media { position: relative; min-height: 620px; display: grid; place-items: center; overflow: hidden; border-radius: min(44px, 7vw); background: linear-gradient(145deg, #d9dfd4, #f5f1e8 65%); box-shadow: var(--shadow); }
.hero-media::before { content: ""; position: absolute; inset: 8% 18% 14%; border: 1px solid rgba(20,33,28,.1); border-radius: 50%; }
.hero-media .product-visual { width: 84%; position: relative; z-index: 1; }
.hero-media .product-visual img { width: 100%; aspect-ratio: 1; object-fit: contain; mix-blend-mode: multiply; filter: drop-shadow(0 32px 42px rgba(20,33,28,.2)); }
.floating-label { position: absolute; z-index: 2; right: 24px; bottom: 24px; max-width: 220px; padding: 16px 18px; border: 1px solid rgba(255,255,255,.7); border-radius: 18px; background: rgba(255,254,250,.75); backdrop-filter: blur(16px); }
.floating-label span { display: block; margin-bottom: 3px; color: var(--sage-dark); font-size: .68rem; font-weight: 760; letter-spacing: .12em; text-transform: uppercase; }
.floating-label strong { font-size: .88rem; }

.section { padding-block: clamp(82px, 11vw, 150px); }
.section-tint { background: var(--paper-2); }
.section-heading { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 40px; margin-bottom: 52px; }
.section-heading h2 { max-width: 760px; margin-bottom: 0; }
.section-heading > p { max-width: 460px; margin-bottom: 7px; font-size: 1.02rem; }
.section-more { margin-top: 34px; text-align: center; }

.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.product-grid.single-card { grid-template-columns: minmax(0, 780px); }
.product-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.product-card-visual { min-height: 440px; display: grid; place-items: center; overflow: hidden; background: linear-gradient(145deg, #dde4da, #f5f1e9); }
.product-card-visual .product-visual { width: 75%; }
.product-card-visual img { width: 100%; aspect-ratio: 1; object-fit: contain; mix-blend-mode: multiply; transition: transform .5s ease; }
.product-card:hover .product-card-visual img { transform: scale(1.035); }
.product-card-copy { padding: 32px; }
.product-card-copy h3 { margin-bottom: 16px; }
.product-card-copy p:not(.eyebrow) { min-height: 78px; }
.card-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; margin-top: 26px; }
.placeholder-visual { width: 100% !important; height: 100%; display: grid; place-items: center; background: radial-gradient(circle at 50% 30%, #e1e6dc, #c6d0c4); }
.product-placeholder { width: 72%; max-height: 420px; filter: drop-shadow(0 28px 32px rgba(20,33,28,.16)); }

.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.article-grid-wide { grid-template-columns: repeat(2, 1fr); }
.article-card { min-height: 330px; display: flex; flex-direction: column; padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,254,250,.58); }
.article-card h3 { margin: 30px 0 14px; }
.article-card p { flex: 1; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; color: var(--sage-dark); font-size: .7rem; font-weight: 720; letter-spacing: .08em; text-transform: uppercase; }
.article-meta span + span::before { content: ""; display: inline-block; width: 3px; height: 3px; margin: 0 16px 2px 0; border-radius: 50%; background: currentColor; }

.values-section { display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; }
.values-intro h2 { position: sticky; top: 120px; }
.value-row { display: grid; grid-template-columns: 44px .75fr 1.25fr; gap: 24px; padding: 30px 0; border-top: 1px solid var(--line); }
.value-row:last-child { border-bottom: 1px solid var(--line); }
.value-row > span { color: var(--sage-dark); font-size: .78rem; }
.value-row h3, .value-row p { margin: 0; }

.breadcrumbs { padding-top: 36px; display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: .74rem; }
.breadcrumbs span:last-child { max-width: min(70ch, 60vw); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.product-hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(40px, 7vw, 100px); padding-block: 55px 110px; }
.product-hero-media { min-height: 620px; display: grid; place-items: center; overflow: hidden; border-radius: 36px; background: linear-gradient(145deg, #dce3d8, #f2eee5); }
.product-hero-media .product-visual { width: 82%; }
.product-hero-media img { width: 100%; aspect-ratio: 1; object-fit: contain; mix-blend-mode: multiply; filter: drop-shadow(0 32px 42px rgba(20,33,28,.18)); }
.product-hero-media .placeholder-visual { width: 100%; min-height: 620px; }
.product-hero-copy h1 { font-size: clamp(2.7rem, 5.6vw, 5.7rem); }
.product-lead { font-size: 1.08rem; }
.highlight-list { margin: 30px 0; padding: 0; list-style: none; }
.highlight-list li { position: relative; padding: 13px 0 13px 28px; border-top: 1px solid var(--line); color: #3f4c45; }
.highlight-list li:last-child { border-bottom: 1px solid var(--line); }
.highlight-list li::before { content: ""; position: absolute; left: 3px; top: 22px; width: 8px; height: 8px; border-radius: 50%; background: var(--sage-dark); }
.amazon-note { max-width: 500px; margin: 15px 0 0; font-size: .74rem; }
.product-details { display: grid; grid-template-columns: .9fr 1.1fr; gap: 9vw; }
.product-details dl { margin: 0; }
.product-details dl > div { display: grid; grid-template-columns: .75fr 1.25fr; gap: 20px; padding: 22px 0; border-top: 1px solid var(--line); }
.product-details dl > div:last-child { border-bottom: 1px solid var(--line); }
.product-details dt { color: var(--muted); font-size: .82rem; }
.product-details dd { margin: 0; font-weight: 620; }
.narrow-copy { max-width: 820px; }
.narrow-copy > p:not(.eyebrow) { font-size: 1.1rem; }
.purchase-band { padding: 55px 0; background: var(--ink); color: var(--white); }
.purchase-band .eyebrow { color: #a7c1ad; }
.purchase-band-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.purchase-band h2 { margin-bottom: 0; font-size: clamp(1.8rem, 4vw, 3.2rem); }
.purchase-band .button-dark { border-color: rgba(255,255,255,.28); background: white; color: var(--ink); box-shadow: none; }

.page-intro { max-width: 1000px; padding-block: clamp(100px, 14vw, 185px) 40px; }
.page-intro h1 { font-size: clamp(3rem, 7vw, 6.5rem); }
.page-intro > p:not(.eyebrow) { max-width: 780px; font-size: 1.15rem; }
.about-intro { max-width: 1080px; }
.editorial-sections { max-width: 920px; }
.editorial-sections article { display: grid; grid-template-columns: 60px 1fr; gap: 28px; padding: 46px 0; border-top: 1px solid var(--line); }
.editorial-sections article > span { color: var(--sage-dark); font-size: .78rem; }
.editorial-sections article h2 { font-size: clamp(1.9rem, 3vw, 3.1rem); }
.editorial-sections article p { font-size: 1.06rem; }

.article-shell { padding-bottom: 140px; }
.article-header { max-width: 920px; margin-inline: auto; padding-block: 80px 70px; text-align: center; }
.article-header .article-meta { justify-content: center; }
.article-header h1 { margin: 30px 0; font-size: clamp(2.8rem, 6.5vw, 6rem); }
.article-deck { max-width: 760px; margin-inline: auto; font-size: 1.16rem; }
.article-date { margin-top: 26px; font-size: .75rem; }
.article-layout { display: grid; grid-template-columns: minmax(0, 740px) 340px; justify-content: center; align-items: start; gap: 70px; }
.article-body { font-family: ui-serif, Georgia, "Noto Serif JP", serif; font-size: 1.08rem; line-height: 1.82; }
.article-body section { margin-bottom: 58px; }
.article-body h2 { margin-bottom: 20px; font-family: Inter, ui-sans-serif, "Noto Sans JP", sans-serif; font-size: clamp(1.65rem, 3vw, 2.7rem); }
.article-body p, .article-body li { color: #3e4943; }
.article-body li { margin-bottom: 10px; }
.article-disclaimer { padding: 22px; border-left: 3px solid var(--sage-dark); background: var(--paper-2); color: var(--muted); font-family: Inter, ui-sans-serif, sans-serif; font-size: .82rem; }
.article-aside { position: sticky; top: 112px; padding: 24px; border: 1px solid var(--line); border-radius: 24px; background: var(--white); }
.article-aside .product-visual { height: 260px; margin: -24px -24px 24px; display: grid; place-items: center; overflow: hidden; border-radius: 24px 24px 0 0; background: linear-gradient(145deg, #dce3d8, #f2eee5); }
.article-aside .product-visual img { width: 78%; height: 90%; object-fit: contain; mix-blend-mode: multiply; }
.article-aside .placeholder-visual { width: auto !important; }
.article-aside h2 { font-size: 1.5rem; }
.article-aside p:not(.eyebrow) { font-size: .84rem; }

.legal-copy h2 { margin: 48px 0 12px; font-size: 1.8rem; }
.legal-copy p { font-size: 1rem !important; }

.site-footer { padding: 80px 0 24px; border-top: 1px solid var(--line); background: #e5e1d8; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr 1.1fr; gap: 64px; }
.footer-grid > div:first-child p { max-width: 300px; margin-top: 18px; }
.footer-grid h2 { margin: 5px 0 20px; font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-grid > div:not(:first-child) a { display: block; margin: 10px 0; font-size: .84rem; }
.footer-note { margin-top: 18px; font-size: .72rem; }
.footer-bottom { margin-top: 60px; padding-top: 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; color: var(--muted); font-size: .72rem; }

.gateway-page { min-height: 100vh; display: grid; place-items: center; overflow-x: hidden; background: radial-gradient(circle at 70% 15%, #dce6da, transparent 40%), var(--paper); }
.gateway { padding-block: 80px; }
.gateway-brand { margin-bottom: 11vh; }
.gateway h1 { max-width: 1050px; margin-bottom: 55px; }
.gateway h1 span { color: var(--sage-dark); }
.market-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; max-width: 900px; }
.market-grid a { position: relative; min-height: 190px; display: flex; flex-direction: column; justify-content: flex-end; padding: 28px; border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.55); transition: transform .2s ease, background .2s ease; }
.market-grid a:hover { transform: translateY(-4px); background: white; }
.market-grid span { position: absolute; top: 26px; left: 28px; color: var(--sage-dark); font-size: .72rem; font-weight: 720; letter-spacing: .1em; text-transform: uppercase; }
.market-grid strong { font-size: 1.8rem; }
.market-grid small { color: var(--muted); }
.market-grid svg { position: absolute; right: 28px; bottom: 29px; }
.not-found { min-height: 100vh; display: grid; place-items: center; text-align: center; }
.not-found main { width: min(700px, calc(100% - 40px)); }
.not-found h1 { font-size: clamp(3rem, 9vw, 6rem); }
.not-found .button { margin: 10px 4px; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-media { min-height: 520px; }
  .section-heading { grid-template-columns: 1fr; }
  .product-card-visual { min-height: 360px; }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid .article-card:last-child:nth-child(odd) { grid-column: span 2; }
  .values-section { grid-template-columns: 1fr; }
  .values-intro h2 { position: static; }
  .product-hero { grid-template-columns: 1fr; }
  .product-hero-media { min-height: 540px; }
  .product-details { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: minmax(0, 740px); }
  .article-aside { position: static; max-width: 500px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: span 2; }
}

@media (max-width: 720px) {
  :root { --shell: min(100% - 28px, 1180px); --radius: 20px; }
  .site-header { background: color-mix(in srgb, var(--paper) 96%, transparent); }
  .header-inner { min-height: 70px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; left: 14px; right: 14px; top: 62px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 16px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px 8px; }
  .locale-switch { margin-top: 8px; text-align: center; }
  .hero { padding-block: 55px 70px; }
  .hero-media { min-height: 410px; border-radius: 28px; }
  .floating-label { right: 14px; bottom: 14px; }
  .section { padding-block: 80px; }
  .product-grid, .article-grid, .article-grid-wide { grid-template-columns: 1fr; }
  .article-grid .article-card:last-child:nth-child(odd) { grid-column: auto; }
  .product-card-visual { min-height: 330px; }
  .product-card-copy { padding: 24px; }
  .value-row { grid-template-columns: 36px 1fr; }
  .value-row p { grid-column: 2; }
  .breadcrumbs { padding-top: 24px; }
  .product-hero { padding-block: 35px 80px; }
  .product-hero-media, .product-hero-media .placeholder-visual { min-height: 400px; }
  .product-details dl > div { grid-template-columns: 1fr; gap: 4px; }
  .purchase-band-inner { align-items: flex-start; flex-direction: column; }
  .page-intro { padding-top: 90px; }
  .article-header { padding-block: 55px 45px; text-align: left; }
  .article-header .article-meta { justify-content: flex-start; }
  .article-shell { padding-bottom: 90px; }
  .article-body { font-size: 1rem; }
  .editorial-sections article { grid-template-columns: 40px 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid > div:first-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .gateway { padding-block: 40px; }
  .gateway-brand { margin-bottom: 60px; }
  .market-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

:focus-visible { outline: 3px solid #4d7560; outline-offset: 3px; }