/* =========================================
   STONE FLOOR - Modern Static Site
   Design: Dark / Stylish
   ========================================= */

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f0f0f;
  --bg-surface: #161616;
  --bg-card: #1f1f1f;
  --border: #2a2a2a;
  --text: #ece9e4;
  --text-sub: #aaa;
  --text-muted: #555;
  --accent: #b8a98a;
  --accent-light: #d4c5a9;
  --max-w: 1200px;
  --header-h: 44px;
  --radius: 2px;
  --transition: 0.3s ease;
}

html { scroll-behavior: smooth; overflow-x: hidden; }
body { overflow-x: hidden; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Zen Kaku Gothic New', 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  font-weight: 400;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* === Container === */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* =========================================
   HEADER
   ========================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(15, 15, 15, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--border);
}

.header-inner {
  width: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.site-logo { flex-shrink: 0; }
.site-logo img { height: 22px; width: auto; filter: invert(1); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--text-sub);
  transition: color var(--transition);
  position: relative;
  white-space: nowrap;
}

.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  right: 100%;
  height: 1px;
  background: var(--accent);
  transition: right var(--transition);
}

.site-nav a:hover { color: var(--accent); }
.site-nav a:hover::after { right: 0; }

/* ドロップダウンメニュー */
.nav-has-dropdown {
  position: relative;
}

.nav-has-dropdown > a::before {
  content: '▾';
  font-size: 9px;
  margin-left: 4px;
  opacity: 0.6;
  display: inline;
}

.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  background: transparent;
  border: none;
  min-width: 0;
  z-index: 200;
  padding: 0;
}

.nav-has-dropdown:hover .nav-dropdown {
  display: block;
}

.nav-dropdown-box {
  position: relative;
  background: #2e2418;
  min-width: 196px;
  box-shadow: 0 10px 36px rgba(0,0,0,0.4);
  padding: 6px 0 10px;
  animation: dropFade 0.18s ease;
}

@keyframes dropFade {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav-dropdown-box a {
  display: block;
  padding: 10px 20px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: #c8b898;
  white-space: nowrap;
  transition: color 0.18s, background 0.18s;
}

.nav-dropdown-box a::after {
  display: none;
}

.nav-dropdown-box a:hover {
  color: #e0d0b0;
  background: rgba(184,169,138,0.1);
}

/* モバイルナビのお問い合わせサブリンク */
.mobile-nav-group {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
}

.mobile-nav-label {
  font-size: 16px;
  color: var(--accent);
  cursor: default;
}

.mobile-nav-sub {
  padding-left: 32px !important;
  font-size: 12px !important;
  color: #888 !important;
}

.mobile-nav-tel {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 6px;
}

.mobile-nav-tel::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23aaa'%3E%3Cpath d='M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.mobile-nav-sub:hover {
  color: var(--accent) !important;
}

.page-top .site-nav a { color: #fff; }
.page-top .site-nav a:hover { color: var(--accent); }
.page-top .nav-lang a { color: rgba(255,255,255,0.88); }
.page-top .nav-lang a:hover,
.page-top .nav-lang a.active { color: var(--accent-light); }

.nav-lang {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-left: 20px;
  margin-left: 4px;
  border-left: 1px solid var(--border);
}

.site-header.scrolled .nav-lang {
  border-left-color: rgba(255,255,255,0.38);
}

.nav-lang a {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--text-sub);
  transition: color var(--transition);
}

.nav-lang a:hover,
.nav-lang a.active { color: var(--accent); }

.nav-lang a:not(.active) {
  color: rgba(255,255,255,0.88);
  border: 1px solid rgba(255,255,255,0.45);
  padding: 2px 7px;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.nav-lang a:not(.active):hover {
  color: #fff;
  border-color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.08);
}

.page-top .nav-lang a:not(.active) {
  color: rgba(255,255,255,0.88);
  border-color: rgba(255,255,255,0.45);
}

.page-top .nav-lang a:not(.active):hover {
  color: #fff;
  border-color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.08);
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--accent-light);
  flex-shrink: 0;
  transition: color var(--transition);
}

.header-phone svg { flex-shrink: 0; }

.header-phone:hover { color: var(--accent); }

body.header-has-phone .site-nav { gap: 20px; }

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

@media (max-width: 1010px) and (min-width: 769px) {
  body.header-has-phone .site-nav { display: none; }
  body.header-has-phone .hamburger { display: flex; }
  body.header-has-phone .nav-lang { order: 1; }
  body.header-has-phone .header-phone { order: 2; }
  body.header-has-phone .hamburger { order: 3; }
}

@media (max-width: 768px) {
  .header-phone { display: none; }
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: flex;
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0; bottom: 0;
  background: rgba(15, 15, 15, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 999;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 40px 36px;
  gap: 22px;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-nav.open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav > * {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.mobile-nav.open > *:nth-child(1) { opacity: 1; transform: translateY(0); transition-delay: 0.06s; }
.mobile-nav.open > *:nth-child(2) { opacity: 1; transform: translateY(0); transition-delay: 0.12s; }
.mobile-nav.open > *:nth-child(3) { opacity: 1; transform: translateY(0); transition-delay: 0.18s; }
.mobile-nav.open > *:nth-child(4) { opacity: 1; transform: translateY(0); transition-delay: 0.24s; }
.mobile-nav.open > *:nth-child(5) { opacity: 1; transform: translateY(0); transition-delay: 0.30s; }
.mobile-nav.open > *:nth-child(6) { opacity: 1; transform: translateY(0); transition-delay: 0.36s; }
.mobile-nav.open > *:nth-child(7) { opacity: 1; transform: translateY(0); transition-delay: 0.42s; }
.mobile-nav.open > *:nth-child(8) { opacity: 1; transform: translateY(0); transition-delay: 0.48s; }

.mobile-nav a {
  font-size: 16px;
  letter-spacing: 0.1em;
  color: var(--text-sub);
  transition: color var(--transition), opacity 0.35s ease, transform 0.35s ease;
}

.mobile-nav a:hover { color: var(--accent); }

.mobile-nav-lang {
  display: flex;
  gap: 16px;
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  width: 100%;
}

.call-bar {
  display: none;
}

@media (max-width: 768px) {
  .call-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 900;
    background: rgba(22, 22, 22, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    padding: 14px 16px;
    padding-bottom: max(14px, env(safe-area-inset-bottom));
    color: var(--accent-light);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.04em;
    transition: background var(--transition), color var(--transition);
  }

  .call-bar svg { flex-shrink: 0; }

  .call-bar:active {
    background: var(--bg-card);
    color: var(--accent);
  }

  body.has-call-bar { padding-bottom: 52px; }

  .call-bar-split {
    padding: 0;
    gap: 0;
  }

  .call-bar-split .call-bar-half {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex: 1;
    height: 100%;
    padding: 14px 12px;
    padding-bottom: max(14px, env(safe-area-inset-bottom));
    color: var(--accent-light);
    text-decoration: none;
  }

  .call-bar-split .call-bar-half:first-child {
    border-right: 1px solid var(--border);
  }

  .call-bar-split .call-bar-half:active {
    background: var(--bg-card);
    color: var(--accent);
  }

}

/* =========================================
   HERO
   ========================================= */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-slides { position: absolute; inset: 0; }

.hero-slide {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-slide.active { z-index: 1; }

.hero-slide.entering {
  z-index: 2;
  animation: pageReveal 1.5s cubic-bezier(0.76, 0, 0.24, 1) forwards;
}

/* ページ境界に落ちる影 */
.hero-slide.entering::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.22) 0%, transparent 60px);
  z-index: 1;
  pointer-events: none;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: center center;
}

@keyframes pageReveal {
  from { clip-path: inset(0 0 0 100%); }
  to   { clip-path: inset(0 0 0 0%); }
}

@keyframes kenburns {
  from { transform: scale(1); }
  to   { transform: scale(1.1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: linear-gradient(
    to bottom,
    rgba(15,15,15,0.25) 0%,
    rgba(15,15,15,0.25) 50%,
    rgba(15,15,15,0.6) 100%
  );
}

.hero-content {
  position: absolute;
  inset: 0;
  z-index: 11;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 24px;
}

.hero-tagline {
  font-size: 11px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-title {
  font-family: 'Cormorant Garamond', 'Shippori Mincho', Georgia, serif;
  font-size: clamp(36px, 5.5vw, 76px);
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1.0;
  margin-bottom: 48px;
}

.hero-title-label {
  font-size: 0.45em;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: #e0cfab;
  display: block;
  margin-bottom: -14px;
}

.hero-title-main {
  font-size: 1em;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: #fff;
}

.hero-sub {
  font-family: 'Yu Gothic', 'YuGothic', sans-serif;
  font-size: 20px;
  font-weight: 400;
  color: #e8e0d4;
  letter-spacing: 0.12em;
  margin-bottom: 48px;
  max-width: 480px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  max-width: 480px;
}

.hero-btns .btn { flex: 1 0 calc(50% - 8px); text-align: center; white-space: nowrap; }

/* Slide indicators */
.hero-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 11;
  display: flex;
  gap: 8px;
}

.hero-dot {
  width: 24px;
  height: 1px;
  background: rgba(255,255,255,0.3);
  transition: background var(--transition), width var(--transition);
  cursor: pointer;
}

.hero-dot.active {
  background: var(--accent);
  width: 48px;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-block;
  padding: 13px 40px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid;
  border-radius: var(--radius);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #111;
}

.btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* =========================================
   SECTIONS
   ========================================= */
section { padding: 100px 0; }

.section-label {
  font-size: 10px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Shippori Mincho', 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 300;
  letter-spacing: 0.04em;
  line-height: 1.25;
  margin-bottom: 20px;
}

.lang-en .section-title {
  font-family: 'Cormorant Garamond', 'Shippori Mincho', Georgia, serif;
  font-variant-numeric: lining-nums;
}

.section-body {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.95;
  max-width: 580px;
}

.section-divider {
  width: 36px;
  height: 1px;
  background: var(--accent);
  margin: 20px 0;
}

/* Page Hero (inner pages) */
.page-hero {
  padding-top: calc(var(--header-h) + 80px);
  padding-bottom: 80px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.page-hero-label {
  font-size: 10px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.page-hero-title {
  font-family: 'Cormorant Garamond', 'Shippori Mincho', Georgia, serif;
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 300;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.page-hero-sub {
  font-size: 14px;
  color: var(--text-sub);
  margin-top: 16px;
}

/* =========================================
   HOMEPAGE CONCEPT
   ========================================= */
.concept-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--border);
}

.concept-text {
  background: var(--bg);
  padding: 80px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.concept-visual {
  background: var(--bg-card);
  overflow: hidden;
}

.concept-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: transform 0.8s ease;
}

.concept-visual:hover img { transform: scale(1.03); }

/* =========================================
   FEATURES GRID (homepage overview)
   ========================================= */
.features-overview {
  background: var(--bg-surface);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.feature-item {
  background: var(--bg-surface);
  padding: 36px 28px;
  transition: background var(--transition);
}

.feature-item:hover { background: var(--bg-card); }

.feature-number {
  font-family: 'Playfair Display', serif;
  font-size: 44px;
  font-weight: 400;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--accent);
  opacity: 0.35;
  line-height: 1;
  margin-bottom: 14px;
}

.feature-title {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 12px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* =========================================
   PRODUCTS SECTION (homepage)
   ========================================= */
.products-overview { background: var(--bg); }

.products-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 56px;
  flex-wrap: wrap;
  gap: 24px;
}

.product-preview-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
}

.product-preview-item {
  background: var(--bg-card);
  overflow: hidden;
  position: relative;
  aspect-ratio: 3/4;
}

.product-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.4s ease;
  filter: grayscale(15%);
}

.product-preview-item:hover img {
  transform: scale(1.06);
  filter: grayscale(0%);
}

.product-preview-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 40px 24px 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, transparent 100%);
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0.05em;
}

.product-preview-label small {
  display: block;
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}

/* =========================================
   GALLERY PREVIEW (homepage)
   ========================================= */
.gallery-preview {
  background: var(--bg-surface);
}

.gallery-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.gallery-preview-item {
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
}

.gallery-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.3s ease;
  filter: grayscale(25%);
}

.gallery-preview-item:hover img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

/* =========================================
   NEWS SECTION
   ========================================= */
.news-list { display: grid; gap: 0; }

.news-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.news-item:first-child { border-top: 1px solid var(--border); }

.news-date {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding-top: 3px;
}

.news-text { font-size: 14px; line-height: 1.8; }

/* =========================================
   CTA BANNER
   ========================================= */
.cta-banner {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 24px;
  text-align: center;
}

.cta-banner > div {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.btn-group-equal {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.cta-banner > div .btn,
.btn-group-equal .btn { flex: 1; text-align: center; white-space: nowrap; }

/* =========================================
   CHARACTERISTIC PAGE
   ========================================= */

/* Structure section */
.structure-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-bottom: 80px;
}

.structure-text {
  background: var(--bg);
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.structure-img {
  width: 100%;
  max-width: 260px;
  margin-top: 36px;
  align-self: center;
  border-radius: 50%;
}

.structure-visual {
  background: var(--bg-surface);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.layer-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.layer-item:last-child { border-bottom: none; }

.layer-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  padding-top: 2px;
}

.layer-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* Structure section photos */
.structure-photos {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 4px;
  margin-top: 4px;
  height: 280px;
}

.structure-photo {
  overflow: hidden;
}

.structure-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(15%);
  transition: transform 0.6s ease, filter 0.6s ease;
}

.structure-photo:hover img {
  transform: scale(1.04);
  filter: grayscale(0%);
}

@media (max-width: 768px) {
  .structure-photos {
    grid-template-columns: 1fr 1fr;
    height: auto;
  }
  .structure-photos .structure-photo:first-child {
    grid-column: 1 / 3;
    height: 220px;
  }
  .structure-photos .structure-photo:not(:first-child) {
    height: 160px;
  }
}

/* Features detail grid */
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1px;
  background: var(--bg);
}

.char-item {
  background: var(--bg-card);
  padding: 36px 36px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: background var(--transition);
}

.char-item:hover { background: var(--bg-card); }

.char-img {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 2px;
}

.char-title {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.char-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.85;
}

/* =========================================
   LINEUP PAGE
   ========================================= */
.product-category { margin-bottom: 80px; }

.product-category-title {
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.product-category-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--border);
}

.product-card {
  background: var(--bg-card);
  overflow: hidden;
  transition: opacity var(--transition);
  cursor: pointer;
  display: block;
}

.product-card-img {
  aspect-ratio: 1;
  overflow: hidden;
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
  filter: grayscale(10%);
}

.product-card:hover .product-card-img img {
  transform: scale(1.06);
  filter: grayscale(0%);
}

.product-card-info { padding: 18px 20px; }

.product-card-name {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}

.product-card-name-jp {
  font-size: 12px;
  color: var(--text-sub);
}

/* =========================================
   GALLERY PAGE
   ========================================= */
.gallery-section { background: var(--bg); }

.gallery-category { margin-bottom: 64px; }

.gallery-category-title {
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-sub);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.gallery-category-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.gallery-category-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.gallery-category-link:hover {
  color: var(--accent-light);
  border-color: var(--accent-light);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--bg);
}

.gallery-item {
  aspect-ratio: 4/3;
  overflow: hidden;
  cursor: pointer;
  background: var(--bg);
}

.gallery-grid--portrait .gallery-item {
  aspect-ratio: 3/4;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease, filter 0.3s ease;
  filter: grayscale(20%);
}

.gallery-item:hover img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

/* =========================================
   ORDER FLOW PAGE
   ========================================= */
.flow-steps { display: grid; max-width: 800px; margin: 0 auto; }

.flow-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 40px;
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}

.flow-step:first-child { border-top: 1px solid var(--border); }

.flow-num {
  font-family: 'Playfair Display', serif;
  font-size: 52px;
  font-weight: 400;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--accent);
  opacity: 0.4;
  line-height: 1;
}

.flow-badge {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 3px 10px;
  margin-bottom: 12px;
}

.flow-title {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.flow-desc {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.95;
}

.flow-detail {
  margin-top: 12px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 400;
}

/* =========================================
   CATALOG PAGE
   ========================================= */
.catalog-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-bottom: 80px;
}

.catalog-info {
  background: var(--bg-surface);
  padding: 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.catalog-visual {
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 360px;
}

.catalog-visual img {
  max-height: 460px;
  width: auto;
  height: auto;
  display: block;
  object-fit: contain;
}

.related-pages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

/* =========================================
   CONTACT FORM
   ========================================= */
.contact-info-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  padding: 40px;
  margin-bottom: 64px;
  text-align: center;
}

.contact-phone {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  font-size: 44px;
  font-weight: 300;
  color: var(--accent);
  letter-spacing: 0.05em;
  margin: 12px 0 8px;
}

.contact-hours {
  font-size: 13px;
  color: var(--text-sub);
}

.contact-form { max-width: 720px; margin: 0 auto; }

.form-group { margin-bottom: 28px; }

.form-label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-sub);
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--accent);
  margin-left: 4px;
  font-size: 10px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 13px 16px;
  font-family: inherit;
  font-size: 14px;
  border-radius: var(--radius);
  transition: border-color var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus { border-color: var(--accent); }

.form-textarea {
  resize: vertical;
  min-height: 160px;
  line-height: 1.8;
}

.form-select-wrap { position: relative; }

.form-select-wrap::after {
  content: '▾';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-sub);
  pointer-events: none;
}

.form-select option { background: var(--bg-card); }

.form-checkboxes { display: grid; gap: 12px; }

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.form-checkbox input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.form-checkbox span { font-size: 14px; }

.form-submit {
  width: 100%;
  padding: 16px;
  margin-top: 8px;
  font-size: 13px;
}

.form-submit:disabled { opacity: 0.55; cursor: not-allowed; }

.hidden { display: none !important; }

#form-message {
  margin-top: 24px;
  padding: 18px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.8;
  text-align: center;
}

#form-message.success {
  background: rgba(140, 190, 150, 0.08);
  border: 1px solid rgba(140, 190, 150, 0.35);
  color: #8cbe96;
}

#form-message.error {
  background: rgba(210, 100, 100, 0.08);
  border: 1px solid rgba(210, 100, 100, 0.35);
  color: #e08080;
  margin-top: 0;
  margin-bottom: 24px;
}

/* =========================================
   INDONESIAN PAGE
   ========================================= */
.idn-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-top: 48px;
}

.idn-contact-item {
  background: var(--bg-surface);
  padding: 40px;
}

.idn-contact-item h3 {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.idn-phone {
  font-family: 'Zen Kaku Gothic New', sans-serif;
  font-size: 28px;
  font-weight: 300;
  color: var(--text);
  margin-bottom: 8px;
}

/* =========================================
   FOOTER
   ========================================= */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  --text-muted: #999;
}

.footer-main {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 80px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.footer-logo { height: 26px; width: auto; margin-bottom: 20px; filter: invert(1); }

.footer-tagline {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.95;
  margin-bottom: 20px;
}

.footer-address {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 2.1;
}

.footer-address-block {
  margin-bottom: 8px;
}

.footer-address-block:last-child {
  margin-bottom: 0;
}

.footer-address a {
  color: inherit;
  text-decoration: none;
}

.footer-address a:hover {
  color: var(--accent);
}

.footer-phone-row {
  display: flex;
  align-items: baseline;
}

.footer-phone-label {
  display: inline-block;
  min-width: 44px;
  flex-shrink: 0;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

@media (min-width: 1025px) {
  .footer-nav:has(> :nth-child(4)) {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-nav:not(:has(> :nth-child(3))) {
    grid-template-columns: repeat(2, 1fr);
  }
}

.footer-nav-group h4 {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.footer-nav-group a {
  display: block;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 12px;
  transition: color var(--transition);
}

.footer-nav-group a:hover { color: var(--accent); }

.footer-nav-group .btn-primary { color: #111; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-instagram {
  font-size: 12px;
  color: var(--accent);
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}

.footer-instagram:hover { color: var(--accent-light); }

.footer-copyright { font-size: 12px; color: var(--text-muted); }

.footer-lang {
  display: flex;
  align-items: center;
}

.footer-lang a {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  padding: 0 10px;
  border-left: 1px solid var(--border);
  transition: color var(--transition);
}

.footer-lang a:first-child { border-left: none; padding-left: 0; }
.footer-lang a:last-child { padding-right: 0; }
.footer-lang a.active { color: var(--accent); }
.footer-lang a:hover { color: var(--text-sub); }

.footer-bottom-links { display: flex; gap: 24px; }

.footer-bottom-links a {
  font-size: 12px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-bottom-links a:hover { color: var(--text-sub); }

/* =========================================
   LIGHTBOX
   ========================================= */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.96);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.lightbox.open { display: flex; }

.lightbox-img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.3);
  border-color: rgba(255,255,255,0.8);
}

/* =========================================
   FADE-IN ANIMATION
   ========================================= */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .product-preview-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr; gap: 48px; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
  .structure-intro { grid-template-columns: 1fr; }
}

@media (max-width: 800px) {
  .catalog-section { grid-template-columns: 1fr; }
  .related-pages-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  section { padding: 64px 0; }

  .site-nav { display: none; }
  .hamburger { display: flex; }
  .header-inner { gap: 12px; }
  .site-logo img { height: 16px; }

  .concept-section { grid-template-columns: 1fr; }
  .concept-text { padding: 48px 24px; }

  .features-grid { grid-template-columns: repeat(2, 1fr); }

  .gallery-preview-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }

  .flow-step { grid-template-columns: 56px 1fr; gap: 24px; }

  .news-item { grid-template-columns: 1fr; gap: 6px; }

  .footer-nav { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-nav-wide { grid-column: 1 / -1; }
  .footer-nav-cols { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 16px; grid-column: 1 / -1; }
  .footer-nav-cols h4 { grid-column: 1 / -1; }
  .footer-nav-group h4 { margin-bottom: 12px; padding-bottom: 8px; }
  .footer-nav-group a { margin-bottom: 8px; }
  .footer-main { padding-bottom: 40px; margin-bottom: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }

  .idn-contact-grid { grid-template-columns: 1fr; }

  .char-grid { grid-template-columns: 1fr; }

  .hero-sub { display: none; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 32px; }
  .gallery-preview-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .product-preview-grid { grid-template-columns: 1fr; }
  .contact-phone { font-size: 32px; }
}

/* === Product Info Page === */
.pi-section {
  margin-bottom: 96px;
}

.pi-section-header {
  margin-bottom: 48px;
}

.pi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
}

.pi-card {
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
}

.pi-card-img {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.pi-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.pi-card:hover .pi-card-img img {
  transform: scale(1.04);
}

.pi-card-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.pi-card-category {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.pi-card-name {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 28px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 6px;
}

.pi-card-name-jp {
  font-size: 12px;
  color: var(--text-sub);
  letter-spacing: 0.15em;
  margin-bottom: 20px;
}

.pi-card-spec {
  font-size: 11px;
  color: var(--text-sub);
  letter-spacing: 0.1em;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-bottom: 16px;
}

.pi-card-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.9;
  margin-bottom: 28px;
  flex: 1;
}

.pi-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  transition: opacity var(--transition);
}

.pi-card-link::after {
  content: '→';
  font-size: 13px;
}

.pi-card-link:hover {
  opacity: 0.65;
}

@media (max-width: 900px) {
  .pi-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .pi-grid { grid-template-columns: 1fr; }
  .pi-card-name { font-size: 24px; }
}

/* === Product Detail Page === */
.pd-breadcrumb {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0;
  padding: 20px 0 0;
}

.pd-breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.pd-breadcrumb a:hover { color: var(--accent); }

.pd-breadcrumb span { margin: 0 8px; }

.pd-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 560px;
  margin-top: var(--header-h);
  margin-bottom: 80px;
}

.pd-image {
  overflow: hidden;
  background: var(--bg-surface);
}

.pd-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pd-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 64px 56px;
  background: var(--bg-surface);
}

.pd-category {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.pd-name {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 56px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--text);
  line-height: 1;
  margin-bottom: 10px;
}

.pd-name-jp {
  font-size: 13px;
  color: var(--text-sub);
  letter-spacing: 0.25em;
  margin-bottom: 40px;
}

.pd-divider {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin-bottom: 32px;
}

.pd-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 2;
  margin-bottom: 40px;
}

.pd-spec-table {
  border-top: 1px solid var(--border);
  margin-bottom: 40px;
}

.pd-spec-row {
  display: flex;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  gap: 24px;
}

.pd-spec-label {
  width: 80px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  flex-shrink: 0;
}

.pd-spec-value {
  font-size: 13px;
  color: var(--text-sub);
  letter-spacing: 0.05em;
}

.pd-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.pd-btns .btn {
  flex: 1;
  text-align: center;
  white-space: nowrap;
}

/* 商品詳細ページ専用背景 */
.pd-page {
  --bg: #252119;
  --bg-surface: #2d2922;
  --bg-card: #35302a;
  --border: #413d37;
  --text-sub: #b8b5b0;
  --text-muted: #8a8d98;
}

.pd-page .site-header {
  background: rgba(37, 33, 25, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--border);
}

.pd-page .site-footer {
  background: #161616;
  border-top-color: #2a2a2a;
}

/* 施工事例詳細ページ専用背景（クールグレートーン） */
.proj-page {
  --bg: #191c1f;
  --bg-surface: #1f2428;
  --bg-card: #252b30;
  --border: #313b42;
  --text-sub: #b0b8bc;
  --text-muted: #607078;
}

.proj-page .site-header {
  background: rgba(25, 28, 31, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--border);
}

.proj-page .site-footer {
  background: #111416;
  border-top-color: #252b30;
}

/* 商品詳細：左カラムレイアウト */
.pd-showcase-left {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
}

.pd-showcase .pd-image {
  height: 420px;
  flex: none;
}

.pd-related-inline {
  flex-shrink: 0;
  padding: 28px 20px;
  border-top: 1px solid var(--border);
}

.pd-related-inline .pd-related-label {
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.pd-related-inline .pd-related-list {
  grid-template-columns: repeat(2, 1fr);
}

.pd-related {
  padding: 48px 0 64px;
  border-top: 1px solid var(--border);
}

.pd-related-label {
  font-size: 10px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.pd-related-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.pd-related-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  padding: 12px 16px 12px 12px;
  transition: background var(--transition);
}

.pd-related-item:hover { background: #252525; }

.pd-related-thumb {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  overflow: hidden;
}

.pd-related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pd-related-text-name {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 3px;
}

.pd-related-text-jp {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .pd-showcase { grid-template-columns: 1fr; min-height: auto; }
  .pd-image { aspect-ratio: 4 / 3; }
  .pd-showcase .pd-image { flex: none; height: auto; }
  .pd-info { padding: 48px 32px; }
  .pd-name { font-size: 44px; }
  .pd-related-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .pd-info { padding: 40px 24px; }
  .pd-name { font-size: 36px; }
  .pd-related-list { grid-template-columns: 1fr; }
}