/* =========================================================
   CORONA LLC - 和モダンスタイル
   Color palette:
     生成り kinari   #f7f3ea  (背景基調)
     墨    sumi     #1a1a1a  (本文・見出し)
     朱    shu      #b8282c  (アクセント／CTA)
     金茶  kincha   #b89968  (サブアクセント)
     灰    hai      #8a8580
   ========================================================= */

:root {
  --c-kinari: #f7f3ea;
  --c-kinari-dark: #ede7d6;
  --c-sumi: #1a1a1a;
  --c-sumi-soft: #2a2a2a;
  --c-shu: #b8282c;
  --c-shu-dark: #8f1e22;
  --c-kincha: #b89968;
  --c-hai: #8a8580;
  --c-line: #d9d2be;

  --f-serif: "Shippori Mincho", "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --f-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;

  --container: 1180px;
  --space-unit: 8px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--f-sans);
  color: var(--c-sumi-soft);
  background: var(--c-kinari);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "palt";
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: opacity .2s ease; }
a:hover { opacity: .7; }
ul { list-style: none; }

/* ---------- Layout helpers ---------- */
.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}
.section {
  padding: clamp(60px, 10vw, 120px) 0;
  position: relative;
}
.section--dark {
  background: var(--c-sumi);
  color: var(--c-kinari);
}
.section--alt {
  background: var(--c-kinari-dark);
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--f-serif);
  font-weight: 500;
  color: var(--c-sumi);
  letter-spacing: 0.05em;
  line-height: 1.5;
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: var(--c-kinari); }

.eyebrow {
  display: inline-block;
  font-family: var(--f-serif);
  font-size: 13px;
  letter-spacing: 0.35em;
  color: var(--c-shu);
  margin-bottom: 16px;
  position: relative;
  padding-left: 40px;
}
.eyebrow::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 28px;
  height: 1px;
  background: var(--c-shu);
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 48px;
  line-height: 1.4;
}
.section-title .accent {
  color: var(--c-shu);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(247, 243, 234, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: padding .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--f-serif);
  font-size: 22px;
  letter-spacing: 0.15em;
  color: var(--c-sumi);
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo img { height: 40px; width: auto; }
.logo-en { font-size: 11px; letter-spacing: 0.3em; color: var(--c-hai); display: block; margin-top: 2px; }

.nav-list {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-list a {
  font-size: 14px;
  letter-spacing: 0.15em;
  position: relative;
  padding: 4px 0;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--c-shu);
  transition: width .3s ease;
}
.nav-list a:hover::after { width: 100%; }
.nav-list a:hover { opacity: 1; }

.nav-cta {
  background: var(--c-shu);
  color: #fff !important;
  padding: 10px 22px !important;
  font-size: 13px !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { background: var(--c-shu-dark); opacity: 1 !important; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px; height: 24px;
  position: relative;
  z-index: 110;
}
.nav-toggle span {
  position: absolute; left: 0;
  width: 100%; height: 1.5px;
  background: var(--c-sumi);
  transition: all .3s ease;
}
.nav-toggle span:nth-child(1) { top: 4px; }
.nav-toggle span:nth-child(2) { top: 11px; }
.nav-toggle span:nth-child(3) { top: 18px; }
.nav-toggle.open span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 11px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--c-sumi);
  color: var(--c-kinari);
}
/* ヒーロー動画（背景） */
.hero-video {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}
@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(rgba(26,26,26,0.45), rgba(26,26,26,0.7));
  z-index: 1;
  pointer-events: none;
}
.hero::after {
  /* subtle washi texture effect */
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent 0 2px,
      rgba(255,255,255,0.01) 2px 4px
    );
  z-index: 2;
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 3;
  padding-top: 100px;
  padding-bottom: 60px;
}
.hero-lead {
  font-family: var(--f-serif);
  font-size: 14px;
  letter-spacing: 0.4em;
  color: var(--c-kincha);
  margin-bottom: 32px;
  opacity: 0;
  animation: fadeUp .9s ease .2s forwards;
}
.hero-title {
  font-family: var(--f-serif);
  font-size: clamp(44px, 8vw, 92px);
  font-weight: 400;
  color: var(--c-kinari);
  letter-spacing: 0.15em;
  line-height: 1.3;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeUp 1s ease .4s forwards;
}
.hero-title .shu { color: var(--c-shu); }
.hero-copy {
  font-family: var(--f-serif);
  font-size: clamp(15px, 1.6vw, 18px);
  color: #d4ccb8;
  max-width: 600px;
  line-height: 2;
  opacity: 0;
  animation: fadeUp 1s ease .6s forwards;
}
.hero-scroll {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-kincha);
  z-index: 2;
  writing-mode: vertical-rl;
  display: flex;
  align-items: center;
  gap: 16px;
}
.hero-scroll::after {
  content: "";
  width: 1px; height: 40px;
  background: var(--c-kincha);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(0.3); transform-origin: top; }
  50%      { transform: scaleY(1); transform-origin: top; }
}

/* ---------- Anniversary badge (60周年 落款風) ---------- */
.anniversary-badge {
  position: absolute;
  top: 130px; right: 48px;
  width: 140px; height: 140px;
  border-radius: 50%;
  background: var(--c-shu);
  color: var(--c-kinari);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--f-serif);
  letter-spacing: 0.15em;
  text-align: center;
  z-index: 3;
  box-shadow: 0 8px 28px rgba(184, 40, 44, 0.4);
  opacity: 0;
  transform: rotate(-8deg) scale(0.7);
  animation: badgeIn 1s cubic-bezier(.2,.9,.3,1.2) .9s forwards;
}
.anniversary-badge::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px dashed rgba(255, 255, 255, 0.45);
  border-radius: 50%;
  pointer-events: none;
}
.anniversary-badge::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 1px solid rgba(184, 40, 44, 0.3);
  border-radius: 50%;
  pointer-events: none;
}
.anniversary-badge .ab-top {
  font-size: 10px;
  letter-spacing: 0.3em;
  margin-bottom: 2px;
  opacity: 0.92;
}
.anniversary-badge .ab-num {
  font-size: 48px;
  line-height: 1;
  font-weight: 500;
  margin: 2px 0 4px;
  letter-spacing: 0;
}
.anniversary-badge .ab-bot {
  font-size: 12px;
  letter-spacing: 0.2em;
}

@keyframes badgeIn {
  from { opacity: 0; transform: rotate(-8deg) scale(0.7); }
  to   { opacity: 1; transform: rotate(-8deg) scale(1); }
}

@media (max-width: 700px) {
  .anniversary-badge {
    width: 96px; height: 96px;
    top: 96px; right: 20px;
  }
  .anniversary-badge .ab-top { font-size: 8px; }
  .anniversary-badge .ab-num { font-size: 32px; }
  .anniversary-badge .ab-bot { font-size: 10px; }
}

/* ---------- Anniversary banner (細帯・最上段に固定) ---------- */
.anniv-banner {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 101;
  background: var(--c-sumi);
  color: var(--c-kincha);
  text-align: center;
  padding: 10px 20px;
  font-family: var(--f-serif);
  font-size: 12px;
  letter-spacing: 0.35em;
  border-bottom: 1px solid var(--c-kincha);
}
.anniv-banner strong {
  color: var(--c-shu);
  font-size: 14px;
  padding: 0 8px;
  font-weight: 500;
}

/* バナーが乗る分、ヘッダーとヒーロー位置を調整 */
.site-header { top: 40px; }
.hero { padding-top: 40px; }
.page-hero { padding-top: 220px; }

/* バッジ位置もヘッダー分ずらす */
.anniversary-badge { top: 170px; }

@media (max-width: 700px) {
  .anniv-banner {
    font-size: 10px;
    letter-spacing: 0.2em;
    padding: 8px 12px;
  }
  .anniv-banner strong { font-size: 12px; }
  .site-header { top: 34px; }
  .hero { padding-top: 34px; }
  .page-hero { padding-top: 190px; }
  .anniversary-badge { top: 130px; }
}

/* ---------- Origin / Craftsmanship section ---------- */
.origin {
  text-align: center;
}
.origin-intro {
  font-family: var(--f-serif);
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 2.2;
  max-width: 720px;
  margin: 0 auto 72px;
}
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 48px;
}
.pillar {
  padding: 40px 24px;
  border-top: 2px solid var(--c-shu);
  position: relative;
}
.pillar-num {
  font-family: var(--f-serif);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--c-shu);
  margin-bottom: 16px;
}
.pillar h3 {
  font-size: 22px;
  margin-bottom: 20px;
}
.pillar p {
  font-size: 15px;
  color: var(--c-sumi-soft);
  line-height: 2;
}

/* ---------- Movie section (YouTube 埋め込み) ---------- */
.movie {
  background: var(--c-sumi);
  color: var(--c-kinari);
  text-align: center;
}
.movie .section-title { color: var(--c-kinari); }
.movie .eyebrow { color: var(--c-kincha); }
.movie .eyebrow::before { background: var(--c-kincha); }
.movie .movie-lead {
  font-family: var(--f-serif);
  font-size: clamp(15px, 1.6vw, 17px);
  color: #d4ccb8;
  line-height: 2;
  max-width: 640px;
  margin: 0 auto 48px;
}
.video-frame {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--c-kincha);
  background: #000;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}
.movie-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 32px;
  font-family: var(--f-serif);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--c-kincha);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.movie-link:hover {
  border-bottom-color: var(--c-kincha);
  opacity: 1;
}

/* ---------- Product section ---------- */
.products {
  background: var(--c-kinari-dark);
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.product-card {
  background: #fff;
  overflow: hidden;
  transition: transform .4s ease, box-shadow .4s ease;
  border: 1px solid var(--c-line);
}
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}
.product-thumb {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e8e0cc 0%, #d4c9a8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-hai);
  font-family: var(--f-serif);
  font-size: 14px;
  letter-spacing: 0.2em;
  position: relative;
}
.product-thumb::after {
  content: "";
  position: absolute; inset: 12px;
  border: 1px solid rgba(255,255,255,0.6);
}
.product-body {
  padding: 28px 28px 32px;
}
.product-body h3 {
  font-size: 20px;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.product-body h3 .en {
  font-size: 11px;
  color: var(--c-kincha);
  letter-spacing: 0.2em;
  font-family: var(--f-serif);
}
.product-body p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--c-sumi-soft);
}
.product-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-shu);
  border: 1px solid var(--c-shu);
  padding: 3px 10px;
  margin-top: 16px;
}

/* ---------- Message (CEO) section ---------- */
.message {
  background: var(--c-sumi);
  color: var(--c-kinari);
  position: relative;
  overflow: hidden;
}
.message-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: center;
}
.message-visual {
  aspect-ratio: 3/4;
  background: linear-gradient(180deg, #3a2f28, #1a1a1a);
  border: 1px solid var(--c-kincha);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-kincha);
  font-family: var(--f-serif);
  letter-spacing: 0.3em;
  font-size: 13px;
}
.message-body .eyebrow { color: var(--c-kincha); }
.message-body .eyebrow::before { background: var(--c-kincha); }
.message-body h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  margin-bottom: 32px;
  line-height: 1.6;
}
.message-body p {
  font-family: var(--f-serif);
  font-size: 16px;
  line-height: 2.2;
  color: #d4ccb8;
  margin-bottom: 20px;
}
.signature {
  margin-top: 32px;
  font-family: var(--f-serif);
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--c-kincha);
}
.signature strong {
  font-size: 20px;
  color: var(--c-kinari);
  font-weight: 400;
  margin-left: 12px;
}

/* ---------- Timeline ---------- */
.timeline {
  max-width: 800px;
  margin: 48px auto 0;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 140px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--c-line);
}
.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 40px;
  padding: 24px 0;
  position: relative;
}
.timeline-year {
  font-family: var(--f-serif);
  font-size: 20px;
  color: var(--c-shu);
  letter-spacing: 0.1em;
  text-align: right;
  padding-right: 40px;
}
.timeline-year small {
  display: block;
  font-size: 12px;
  color: var(--c-hai);
  letter-spacing: 0.2em;
  margin-top: 4px;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: 135px; top: 34px;
  width: 11px; height: 11px;
  background: var(--c-kinari);
  border: 2px solid var(--c-shu);
  border-radius: 50%;
}
.timeline-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.timeline-body p {
  font-size: 14px;
  color: var(--c-sumi-soft);
  line-height: 1.9;
}

/* ---------- CTA ---------- */
.cta {
  text-align: center;
  background:
    linear-gradient(rgba(26,26,26,0.85), rgba(26,26,26,0.9)),
    radial-gradient(ellipse at center, #3a2f28, #1a1a1a);
  color: var(--c-kinari);
}
.cta h2 {
  font-size: clamp(28px, 4vw, 40px);
  color: var(--c-kinari);
  margin-bottom: 20px;
}
.cta p {
  font-family: var(--f-serif);
  font-size: 16px;
  color: #d4ccb8;
  margin-bottom: 40px;
  line-height: 2;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 42px;
  background: var(--c-shu);
  color: #fff;
  font-size: 15px;
  letter-spacing: 0.2em;
  border: none;
  cursor: pointer;
  transition: background .3s ease, transform .3s ease;
  font-family: var(--f-sans);
}
.btn:hover {
  background: var(--c-shu-dark);
  transform: translateY(-2px);
  opacity: 1;
}
.btn--outline {
  background: transparent;
  border: 1px solid var(--c-kinari);
  color: var(--c-kinari);
}
.btn--outline:hover {
  background: var(--c-kinari);
  color: var(--c-sumi);
}
.btn-arrow {
  display: inline-block;
  transition: transform .3s ease;
}
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ---------- Footer ---------- */
.site-footer {
  background: #111;
  color: var(--c-hai);
  padding: 72px 0 32px;
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}
.footer-brand {
  font-family: var(--f-serif);
  font-size: 20px;
  color: var(--c-kinari);
  letter-spacing: 0.2em;
  margin-bottom: 16px;
}
.footer-info p { line-height: 1.9; margin-bottom: 4px; }
.footer-nav h4 {
  color: var(--c-kinari);
  font-size: 13px;
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  font-family: var(--f-sans);
  font-weight: 500;
}
.footer-nav ul li { margin-bottom: 10px; }
.footer-nav a:hover { color: var(--c-kinari); opacity: 1; }
.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 24px;
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.15em;
}

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 860px) {
  .pillar-grid,
  .product-grid { grid-template-columns: 1fr; gap: 24px; }
  .message-inner { grid-template-columns: 1fr; gap: 40px; }
  .message-visual { max-width: 300px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .timeline::before { left: 80px; }
  .timeline-item { grid-template-columns: 80px 1fr; gap: 24px; }
  .timeline-year { padding-right: 16px; font-size: 17px; }
  .timeline-item::before { left: 76px; top: 30px; }

  .nav-toggle { display: block; }
  .nav-list {
    position: fixed;
    top: 0; right: 0;
    width: 75%; max-width: 320px;
    height: 100vh;
    background: var(--c-kinari);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 28px;
    transform: translateX(100%);
    transition: transform .4s cubic-bezier(.5,0,.25,1);
    box-shadow: -8px 0 40px rgba(0,0,0,0.08);
  }
  .nav-list.open { transform: translateX(0); }
  .nav-cta { margin-top: 12px; }
}

/* reveal animation for scroll elements */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   Sub-page components
   ===================================================== */

/* ---------- Sub-page hero ---------- */
.page-hero {
  padding: 180px 0 100px;
  background:
    linear-gradient(rgba(26,26,26,0.72), rgba(26,26,26,0.85)),
    radial-gradient(ellipse at 30% 40%, #3a2f28, #1a1a1a 70%);
  color: var(--c-kinari);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(45deg, transparent 0 2px, rgba(255,255,255,0.01) 2px 4px);
  pointer-events: none;
}
.page-hero-eyebrow {
  font-family: var(--f-serif);
  font-size: 12px;
  letter-spacing: 0.4em;
  color: var(--c-kincha);
  margin-bottom: 20px;
  display: block;
}
.page-hero-title {
  font-family: var(--f-serif);
  font-size: clamp(32px, 5vw, 52px);
  color: var(--c-kinari);
  letter-spacing: 0.15em;
  font-weight: 400;
  line-height: 1.5;
  margin-bottom: 16px;
}
.page-hero-sub {
  font-family: var(--f-serif);
  font-size: 14px;
  color: #d4ccb8;
  letter-spacing: 0.1em;
  line-height: 2;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: 20px 0 0;
  font-size: 12px;
  color: var(--c-hai);
  letter-spacing: 0.1em;
}
.breadcrumb ol { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.breadcrumb li::after { content: "／"; margin-left: 12px; color: var(--c-line); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb li:last-child { color: var(--c-sumi-soft); }

/* ---------- Info table ---------- */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 15px;
}
.info-table th,
.info-table td {
  padding: 20px 24px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--c-line);
  line-height: 1.9;
}
.info-table th {
  width: 200px;
  font-family: var(--f-serif);
  font-weight: 500;
  color: var(--c-sumi);
  background: rgba(184, 153, 104, 0.06);
  white-space: nowrap;
}
.info-table td { color: var(--c-sumi-soft); }

@media (max-width: 700px) {
  .info-table th,
  .info-table td { display: block; width: 100%; padding: 14px 16px; }
  .info-table th { border-bottom: none; padding-bottom: 4px; background: transparent; font-size: 13px; color: var(--c-shu); }
  .info-table tr { display: block; border-bottom: 1px solid var(--c-line); padding: 8px 0; }
  .info-table td { padding-top: 0; border-bottom: none; }
}

/* ---------- Product detail ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--c-line);
}
.product-detail:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.product-detail.reverse { grid-template-columns: 1.3fr 1fr; direction: rtl; }
.product-detail.reverse > * { direction: ltr; }
.product-detail-visual {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #e8e0cc 0%, #d4c9a8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-hai);
  font-family: var(--f-serif);
  font-size: 14px;
  letter-spacing: 0.2em;
  position: relative;
}
.product-detail-visual::after {
  content: "";
  position: absolute; inset: 16px;
  border: 1px solid rgba(255,255,255,0.5);
}
.product-detail-body .eyebrow { padding-left: 40px; }
.product-detail-body h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 20px;
  line-height: 1.5;
}
.product-detail-body p {
  font-size: 15px;
  line-height: 2;
  margin-bottom: 16px;
  color: var(--c-sumi-soft);
}
.feature-list {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px dashed var(--c-line);
}
.feature-list dt {
  font-family: var(--f-serif);
  font-size: 13px;
  color: var(--c-shu);
  letter-spacing: 0.15em;
  margin-bottom: 4px;
  margin-top: 16px;
}
.feature-list dt:first-child { margin-top: 0; }
.feature-list dd {
  font-size: 14px;
  color: var(--c-sumi-soft);
  line-height: 1.9;
}

@media (max-width: 860px) {
  .product-detail,
  .product-detail.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 24px;
  }
}

/* ---------- OEM / custom panel ---------- */
.oem-panel {
  margin-top: 80px;
  padding: 48px;
  background: var(--c-sumi);
  color: var(--c-kinari);
  text-align: center;
}
.oem-panel h3 {
  color: var(--c-kinari);
  font-size: clamp(22px, 3vw, 28px);
  margin-bottom: 16px;
}
.oem-panel p {
  font-family: var(--f-serif);
  font-size: 15px;
  color: #d4ccb8;
  margin-bottom: 32px;
  line-height: 2;
}

/* ---------- Contact / form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3 {
  font-size: 20px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
}
.contact-info dl { margin-bottom: 32px; }
.contact-info dt {
  font-family: var(--f-serif);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-shu);
  margin-bottom: 6px;
  margin-top: 20px;
}
.contact-info dt:first-child { margin-top: 0; }
.contact-info dd {
  font-size: 16px;
  color: var(--c-sumi-soft);
  line-height: 1.8;
}
.tel-big {
  font-family: var(--f-serif);
  font-size: 28px;
  color: var(--c-sumi);
  letter-spacing: 0.05em;
}

.form-wrapper {
  background: #fff;
  padding: 40px;
  border: 1px solid var(--c-line);
}
.form-wrapper iframe {
  width: 100%;
  min-height: 1200px;
  border: none;
  display: block;
}
.form-placeholder {
  text-align: center;
  padding: 80px 24px;
  background: var(--c-kinari);
  border: 1px dashed var(--c-kincha);
  color: var(--c-hai);
  font-size: 14px;
  line-height: 2;
}
.form-placeholder code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #fff;
  padding: 2px 8px;
  border: 1px solid var(--c-line);
  color: var(--c-shu);
  font-size: 13px;
}

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-wrapper { padding: 24px; }
}

/* ---------- Map ---------- */
.map-wrap {
  margin-top: 48px;
  aspect-ratio: 16/7;
  border: 1px solid var(--c-line);
  overflow: hidden;
}
.map-wrap iframe {
  width: 100%; height: 100%; border: 0;
  filter: grayscale(20%) contrast(1.02);
}

/* ---------- Privacy policy ---------- */
.policy-body {
  max-width: 820px;
  margin: 0 auto;
}
.policy-body p {
  font-size: 15px;
  line-height: 2;
  margin-bottom: 20px;
  color: var(--c-sumi-soft);
}
.policy-body h3 {
  font-size: 19px;
  margin-top: 48px;
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 3px solid var(--c-shu);
  line-height: 1.6;
}
.policy-body ol,
.policy-body ul {
  margin: 0 0 20px 24px;
  padding-left: 0;
}
.policy-body ol { list-style: decimal; }
.policy-body ul { list-style: disc; }
.policy-body li {
  font-size: 15px;
  line-height: 2;
  color: var(--c-sumi-soft);
  margin-bottom: 8px;
}
.policy-body .revised {
  text-align: right;
  font-size: 13px;
  color: var(--c-hai);
  margin-top: 48px;
}

/* ---------- Business areas (about page) ---------- */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.biz-card {
  padding: 32px 24px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-top: 3px solid var(--c-shu);
}
.biz-card h3 {
  font-size: 17px;
  margin-bottom: 12px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.biz-card h3 .en {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--c-kincha);
}
.biz-card p {
  font-size: 13px;
  line-height: 1.9;
  color: var(--c-sumi-soft);
}
@media (max-width: 860px) {
  .biz-grid { grid-template-columns: 1fr; }
}