:root {
  --paper: #f4f0e7;
  --paper-2: #e9e2d5;
  --ink: #1a2926;
  --forest: #183d35;
  --forest-deep: #102e29;
  --sage: #84988a;
  --rust: #a84d2f;
  --gold: #b79b66;
  --line: rgba(26, 41, 38, .2);
  --white: #fffdf8;
  --max: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", system-ui, sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
.sr-only, .skip-link:not(:focus) { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link:focus { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 10px 14px; color: white; background: var(--forest); }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  color: var(--ink);
  background: rgba(244, 240, 231, .88);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  transition: border-color .25s, background .25s;
}
.site-header.is-scrolled { border-color: var(--line); background: rgba(244, 240, 231, .96); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; max-width: var(--max); height: 82px; margin: auto; padding: 0 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand img { width: 39px; height: 39px; object-fit: contain; }
.brand-name { font-family: Georgia, "Times New Roman", serif; font-size: 18px; letter-spacing: .06em; white-space: nowrap; }
.brand-name b { color: var(--rust); font-weight: 600; }
.site-nav { display: flex; align-items: center; gap: 24px; font-size: 13px; font-weight: 700; letter-spacing: .04em; }
.site-nav a { text-decoration: none; transition: color .2s; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--rust); }
.nav-cta { padding: 11px 20px; color: var(--white) !important; background: var(--forest); }
.nav-cta:hover { background: var(--rust); }
.language-switcher { display: flex; align-items: center; gap: 3px; margin-left: 2px; padding-left: 15px; border-left: 1px solid var(--line); }
.language-switcher button { min-width: 31px; height: 31px; padding: 0 5px; border: 0; color: rgba(26,41,38,.55); background: transparent; font: 700 10px/1 Arial, sans-serif; letter-spacing: .03em; cursor: pointer; transition: color .2s, background .2s; }
.language-switcher button:hover, .language-switcher button:focus-visible { color: var(--rust); outline: 1px solid var(--rust); outline-offset: -1px; }
.language-switcher button[aria-pressed="true"] { color: white; background: var(--rust); }
.menu-toggle { display: none; }

.hero { position: relative; min-height: min(900px, 100svh); overflow: hidden; padding-top: 82px; background: #e7e0d3; }
.hero-image { position: absolute; inset: 82px 0 0; background: url("/assets/fabric-hero.png") center / cover no-repeat; }
.hero-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(244,240,231,.98) 0%, rgba(244,240,231,.93) 26%, rgba(244,240,231,.35) 54%, rgba(244,240,231,0) 72%); }
.hero-inner { position: relative; z-index: 1; display: flex; flex-direction: column; justify-content: center; max-width: var(--max); min-height: calc(min(900px, 100svh) - 82px); margin: auto; padding: 70px 30px 90px; }
.eyebrow { margin: 0 0 18px; color: var(--rust); font-family: Arial, sans-serif; font-size: 11px; font-weight: 800; letter-spacing: .22em; }
h1, h2 { margin: 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", Georgia, serif; font-weight: 500; letter-spacing: -.035em; line-height: 1.28; }
h1 { max-width: 780px; font-size: clamp(48px, 6.2vw, 86px); }
h1 em { color: var(--rust); font-style: normal; }
h2 { font-size: clamp(38px, 5vw, 66px); }
.hero-lead { max-width: 620px; margin: 32px 0 0; font-size: 16px; font-weight: 600; letter-spacing: .03em; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-width: 250px; padding: 16px 20px; font-size: 14px; font-weight: 700; text-decoration: none; transition: background .2s, color .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.button-dark { color: white; background: var(--forest); }
.button-dark:hover { background: var(--rust); }
.text-link { padding: 8px 0; border-bottom: 1px solid var(--ink); font-size: 13px; font-weight: 700; text-decoration: none; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 24px; margin: 36px 0 0; padding: 0; list-style: none; font-size: 12px; font-weight: 700; }
.hero-notes li::before { content: "◆"; margin-right: 8px; color: var(--rust); font-size: 7px; vertical-align: 2px; }
.hero-caption { position: absolute; right: 22px; bottom: 22px; z-index: 2; margin: 0; color: rgba(26,41,38,.55); font: 700 9px/1 Arial, sans-serif; letter-spacing: .2em; writing-mode: vertical-rl; }

.section { padding: 130px 30px; }
.section-grid { display: grid; grid-template-columns: minmax(160px, 1fr) minmax(0, 3fr); gap: 60px; max-width: var(--max); margin: auto; }
.section-index { margin: 9px 0 0; font: 700 10px/1.3 Arial, sans-serif; letter-spacing: .2em; }
.large-copy { max-width: 820px; margin: 42px 0 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(18px, 2vw, 24px); line-height: 2.1; }
.stat-strip { display: grid; grid-template-columns: repeat(3, 1fr); max-width: var(--max); margin: 100px auto 0; border-block: 1px solid var(--line); }
.stat-strip > div { display: flex; flex-direction: column; gap: 10px; padding: 30px 0 26px; }
.stat-strip > div + div { padding-left: 40px; border-left: 1px solid var(--line); }
.stat-strip strong { color: var(--rust); font: 500 clamp(34px, 4vw, 52px)/1 Georgia, serif; }
.stat-strip span { font-size: 12px; font-weight: 700; letter-spacing: .06em; }

.section-dark { color: #f7f2e9; background: var(--forest-deep); }
.section-heading-light .section-index { color: var(--sage); }
.section-dark h2 { color: var(--white); }
.material-list { max-width: var(--max); margin: 82px auto 0; border-top: 1px solid rgba(255,255,255,.25); }
.material-item { display: grid; grid-template-columns: 70px 1fr 150px; align-items: center; gap: 32px; padding: 32px 0; border-bottom: 1px solid rgba(255,255,255,.25); transition: padding .25s, background .25s; }
.material-item:hover { padding-inline: 22px; background: rgba(255,255,255,.04); }
.material-no { color: var(--gold); font: italic 20px Georgia, serif; }
.material-item h3 { margin: 0 0 5px; font: 400 clamp(27px, 3vw, 40px)/1.2 Georgia, serif; }
.material-item p { max-width: 690px; margin: 0; color: #c7cfca; font-size: 13px; }
.material-jp { color: var(--gold); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-align: right; }
.materials-note { max-width: var(--max); margin: 26px auto 0; color: #aebbb6; font-size: 11px; }

.process-list { display: grid; grid-template-columns: repeat(5, 1fr); max-width: var(--max); margin: 90px auto 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.process-list li { position: relative; min-height: 340px; padding: 28px 25px 35px; border-bottom: 1px solid var(--line); }
.process-list li + li { border-left: 1px solid var(--line); }
.process-no { color: var(--rust); font: italic 22px Georgia, serif; }
.process-list h3 { margin: 95px 0 18px; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 21px; font-weight: 600; }
.process-list p { margin: 0; font-size: 12px; line-height: 1.9; }

.quality { display: grid; grid-template-columns: 1.08fr .92fr; min-height: 720px; color: var(--white); background: var(--forest); }
.quality-panel { align-self: center; max-width: 740px; padding: 95px max(50px, calc((100vw - var(--max)) / 2)); padding-right: 70px; }
.quality-panel .section-index { margin-bottom: 70px; color: var(--sage); }
.quality-panel h2 { margin-bottom: 35px; font-size: clamp(38px, 4vw, 60px); }
.quality-panel > p:not(.section-index):not(.eyebrow) { color: #d7ded9; font-size: 14px; }
.check-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 38px 0 0; padding: 0; border-top: 1px solid rgba(255,255,255,.24); list-style: none; }
.check-list li { padding: 15px 8px 15px 20px; border-bottom: 1px solid rgba(255,255,255,.24); font-size: 12px; }
.check-list li::before { content: "/"; margin-left: -20px; margin-right: 10px; color: var(--gold); }
.quality-visual { position: relative; overflow: hidden; background: #c5b9a7; }
.quality-visual::before { content: ""; position: absolute; inset: 0; opacity: .7; background-image: repeating-linear-gradient(90deg, rgba(56,54,45,.24) 0 1px, transparent 1px 8px), repeating-linear-gradient(0deg, rgba(255,255,255,.35) 0 2px, transparent 2px 9px); transform: scale(1.25) rotate(-8deg); }
.weave { position: absolute; border: 1px solid rgba(255,255,255,.55); border-radius: 50%; }
.weave-a { width: 480px; height: 480px; right: -130px; top: -80px; }
.weave-b { width: 270px; height: 270px; left: 10%; bottom: 9%; border-color: rgba(24,61,53,.5); }
.quality-stamp { position: absolute; right: 12%; bottom: 12%; display: grid; width: 150px; height: 150px; place-content: center; color: var(--forest); border: 2px solid var(--forest); border-radius: 50%; font: 500 50px/1 Georgia, serif; text-align: center; transform: rotate(-7deg); }
.quality-stamp small { margin-top: 8px; font: 700 8px/1 Arial, sans-serif; letter-spacing: .12em; }

.two-column-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; max-width: 830px; margin-top: 50px; }
.two-column-copy p { margin: 0; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: 16px; line-height: 2; }

.contact { padding: 130px 30px 80px; color: var(--white); background: var(--rust); }
.contact-inner { max-width: var(--max); margin: auto; }
.contact .section-index { margin-bottom: 95px; color: rgba(255,255,255,.65); }
.contact .eyebrow { color: #f1c9b9; }
.contact h2 { max-width: 900px; font-size: clamp(43px, 6vw, 78px); }
.contact-inner > p:not(.section-index):not(.eyebrow) { max-width: 650px; margin: 35px 0; }
.button-light { color: var(--ink); background: var(--white); }
.button-light:hover { color: white; background: var(--forest); }
.contact-details { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 105px; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.45); }
.contact-details div { display: flex; flex-direction: column; gap: 6px; }
.contact-details span { font-size: 10px; letter-spacing: .1em; opacity: .7; }
.contact-details strong { font-size: 13px; }

.site-footer { display: grid; grid-template-columns: 1fr 1fr 1fr; align-items: center; gap: 25px; padding: 30px max(30px, calc((100vw - var(--max)) / 2)); background: #eee7da; }
.site-footer p { margin: 0; font-size: 10px; text-align: center; }
.site-footer .copyright { text-align: right; }
.footer-brand img { width: 32px; height: 32px; }
.footer-brand .brand-name { font-size: 14px; }

@media (max-width: 950px) {
  .header-inner { height: 72px; }
  .menu-toggle { position: relative; z-index: 2; display: grid; width: 44px; height: 44px; place-content: center; gap: 5px; padding: 0; border: 0; background: transparent; }
  .menu-toggle span:not(.sr-only) { display: block; width: 24px; height: 2px; background: var(--ink); transition: transform .2s, opacity .2s; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 22px; padding: 90px 10vw; background: var(--paper); font: 500 28px/1.4 "Yu Mincho", serif; transform: translateX(100%); transition: transform .3s ease; }
  .site-nav.is-open { transform: translateX(0); }
  .nav-cta { margin-top: 12px; font-family: inherit; font-size: 18px; }
  .language-switcher { gap: 7px; margin: 12px 0 0; padding: 20px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .language-switcher button { min-width: 50px; height: 38px; font-size: 12px; }
  .hero { padding-top: 72px; }
  .section-grid { grid-template-columns: 1fr; gap: 36px; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li { min-height: 300px; }
  .process-list li:nth-child(odd) { border-left: 0; }
  .process-list h3 { margin-top: 65px; }
  .quality { grid-template-columns: 1fr; }
  .quality-panel { max-width: none; padding: 90px 50px; }
  .quality-visual { min-height: 450px; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 70px; }
  .header-inner { padding-inline: 18px; }
  .brand-name { font-size: 15px; }
  .brand img { width: 34px; height: 34px; }
  .hero { min-height: 760px; }
  .hero-image { inset: 72px 0 0; background-position: 63% center; }
  .hero-image::after { background: linear-gradient(90deg, rgba(244,240,231,.98) 0%, rgba(244,240,231,.92) 45%, rgba(244,240,231,.3) 100%); }
  .hero-inner { justify-content: flex-start; min-height: 688px; padding: 95px 22px 75px; }
  h1 { font-size: clamp(40px, 13vw, 56px); }
  .hero-lead { max-width: 92%; font-size: 14px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 15px; }
  .hero-notes { gap: 7px 18px; margin-top: 28px; }
  .hero-caption { display: none; }
  .section { padding: 90px 22px; }
  h2 { font-size: clamp(35px, 10vw, 48px); }
  .large-copy { margin-top: 30px; font-size: 17px; }
  .stat-strip { grid-template-columns: 1fr; margin-top: 65px; }
  .stat-strip > div + div { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .material-list { margin-top: 55px; }
  .material-item { grid-template-columns: 42px 1fr; gap: 12px; padding: 25px 0; }
  .material-item:hover { padding-inline: 0; }
  .material-jp { display: none; }
  .material-item h3 { font-size: 28px; }
  .process-list { grid-template-columns: 1fr; margin-top: 55px; }
  .process-list li, .process-list li + li { min-height: auto; padding: 25px 0 30px; border-left: 0; }
  .process-list h3 { margin: 22px 0 12px; }
  .quality-panel { padding: 80px 22px; }
  .quality-panel .section-index { margin-bottom: 50px; }
  .check-list { grid-template-columns: 1fr; }
  .quality-visual { min-height: 330px; }
  .quality-stamp { right: 8%; bottom: 10%; width: 120px; height: 120px; font-size: 42px; }
  .two-column-copy { grid-template-columns: 1fr; gap: 24px; margin-top: 35px; }
  .contact { padding: 90px 22px 60px; }
  .contact .section-index { margin-bottom: 65px; }
  .button { width: 100%; min-width: 0; }
  .contact-details { grid-template-columns: 1fr; gap: 22px; margin-top: 70px; }
  .site-footer { grid-template-columns: 1fr; justify-items: center; padding: 38px 22px; }
  .site-footer .copyright { text-align: center; }
}

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