/* ==========================================================
   084 株式会社サンプル建設 (SAMPLE Construction Co., Ltd.)
   Style: Dark × Gold / Editorial Construction Premium
   Font:  Cormorant Garamond × Shippori Mincho × Inter × Noto Sans JP
   ========================================================== */

:root {
  --bg-deep:    #0A0E14;   /* 極夜の黒（メイン背景） */
  --bg:         #141821;   /* セカンダリ */
  --bg-card:   #1A1F2A;   /* カード */
  --bg-elev:    #232936;   /* 浮上層 */
  --gold:       #C8A45C;   /* メインゴールド */
  --gold-light: #D4B264;   /* 明るいゴールド */
  --gold-dim:   #8A6F3C;   /* 暗いゴールド */
  --text:       #E5E7EB;   /* メインテキスト */
  --text-mute:  #9CA3AF;   /* セカンダリテキスト */
  --text-dim:   #6B7280;   /* 抑制テキスト */
  --border:     rgba(200,164,92,0.15);
  --border-strong: rgba(200,164,92,0.3);
  --grid-line:  rgba(255,255,255,0.018);

  --font-serif-en: "Cormorant Garamond", "Playfair Display", Georgia, serif;
  --font-serif-jp: "Shippori Mincho", "Noto Serif JP", "游明朝", serif;
  --font-sans-en:  "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans-jp:  "Noto Sans JP", "游ゴシック", "ヒラギノ角ゴ Pro", sans-serif;

  --max-w: 1280px;
  --pad-x: clamp(20px, 5vw, 64px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { overflow-x: hidden; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--text);
  font-family: var(--font-sans-jp);
  font-weight: 400;
  line-height: 1.8;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  /* ブループリント風*/
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 80px 80px;
  background-position: 0 0;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s ease; }
a:hover { color: var(--gold-light); }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

/* ─── DEMO BAR ─────────────────────────────────────────── */
#demo-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1200;
  background: rgba(10,14,20,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 7px 0;
}
.demo-bar-inner {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 0.7rem; color: rgba(229,231,235,0.4);
}
.demo-badge {
  font-size: 0.54rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  background: rgba(200,164,92,0.15); color: var(--gold);
  padding: 3px 10px; flex-shrink: 0;
}
.demo-link { color: var(--gold); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.demo-copy { color: rgba(229,231,235,0.18); font-size: 0.62rem; margin-left: 4px; }
@media(max-width:640px){ .demo-copy { display: none; } }

/* ─── SITE HEADER ──────────────────────────────────────── */
.site-header {
  position: fixed; top: 36px; left: 0; right: 0; z-index: 1100;
  padding: 18px 0;
  background: rgba(10,14,20,0);
  transition: background .4s ease, padding .4s ease, border-color .4s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10,14,20,0.85);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom-color: var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }

.brand {
  display: flex; align-items: baseline; gap: 14px;
}
.brand-mark {
  font-family: var(--font-serif-en); font-size: 1.45rem; font-weight: 600;
  letter-spacing: 0.06em; color: var(--text); line-height: 1;
}
.brand-mark .accent { color: var(--gold); }
.brand-tag {
  font-family: var(--font-sans-jp); font-size: 0.62rem;
  letter-spacing: 0.18em; color: var(--text-mute);
}

.header-nav {
  display: flex; align-items: center; gap: 36px;
}
.header-nav a {
  font-family: var(--font-sans-en); font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text); position: relative;
}
.header-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 1px; background: var(--gold);
  transition: width .3s ease;
}
.header-nav a:hover::after { width: 100%; }
.header-cta {
  border: 1px solid var(--gold); padding: 10px 22px;
  font-family: var(--font-sans-en); font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold);
  transition: all .3s ease;
}
.header-cta:hover { background: var(--gold); color: var(--bg-deep) !important; }
.header-cta::after { display: none; }

/* ハンバーガー */
.hamburger {
  display: none; background: none; border: 0; cursor: pointer;
  width: 32px; height: 28px; position: relative; z-index: 1150;
}
.hamburger span {
  position: absolute; left: 0; width: 100%; height: 1.5px;
  background: var(--text); transition: all .35s ease;
}
.hamburger span:nth-child(1) { top: 6px; }
.hamburger span:nth-child(2) { top: 13.5px; width: 70%; }
.hamburger span:nth-child(3) { top: 21px; }
.hamburger.active span:nth-child(1) { top: 13.5px; transform: rotate(45deg); background: var(--gold); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { top: 13.5px; transform: rotate(-45deg); background: var(--gold); }

/* ─── HERO ─────────────────────────────────────────────── */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden; padding-top: 120px;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: url('../images/hero-main.jpg') center/cover no-repeat;
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(10,14,20,0.7) 0%, rgba(10,14,20,0.4) 40%, rgba(10,14,20,0.95) 100%),
    linear-gradient(90deg, rgba(10,14,20,0.85) 0%, rgba(10,14,20,0.3) 60%, rgba(10,14,20,0) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  max-width: 920px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--font-sans-en); font-size: 0.72rem;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 36px;
}
.hero-eyebrow::before {
  content: ""; width: 40px; height: 1px; background: var(--gold);
}
.hero-title {
  font-family: var(--font-serif-jp);
  font-size: clamp(2.2rem, 5.5vw, 4.6rem);
  font-weight: 500; line-height: 1.25; letter-spacing: 0.02em;
  color: var(--text); margin-bottom: 24px;
}
.hero-title .gold { color: var(--gold); font-style: italic; font-family: var(--font-serif-en); font-weight: 500; }
.hero-tagline {
  font-family: var(--font-serif-en);
  font-size: clamp(1rem, 2vw, 1.5rem); font-style: italic;
  letter-spacing: 0.04em; color: var(--gold-light);
  margin-bottom: 40px;
}
.hero-desc {
  font-size: 0.96rem; line-height: 2;
  color: var(--text-mute); max-width: 580px;
  margin-bottom: 50px;
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 16px;
  background: var(--gold); color: var(--bg-deep) !important;
  padding: 18px 36px;
  font-family: var(--font-sans-en); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  transition: all .3s ease;
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-2px); }
.btn-primary .arrow { transition: transform .3s ease; }
.btn-primary:hover .arrow { transform: translateX(4px); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 16px;
  border: 1px solid var(--border-strong); color: var(--text);
  padding: 18px 36px;
  font-family: var(--font-sans-en); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase;
  transition: all .3s ease;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* Hero scroll indicator */
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 2; color: var(--text-mute);
  font-family: var(--font-sans-en); font-size: 0.62rem;
  letter-spacing: 0.32em; text-transform: uppercase;
  writing-mode: vertical-rl;
  display: flex; align-items: center; gap: 18px;
}
.hero-scroll::after {
  content: ""; width: 1px; height: 60px; background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { height: 0; opacity: 1; }
  60% { height: 60px; opacity: 1; }
  100% { height: 60px; opacity: 0; }
}

/* ─── COUNTER STRIP（ヒーロー直下）───── */
.counter-strip {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 50px 0;
  position: relative;
}
.counter-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.counter-item {
  text-align: center; padding: 10px 20px;
  border-right: 1px solid var(--border);
  position: relative;
}
.counter-item:last-child { border-right: 0; }
.counter-num {
  font-family: var(--font-serif-en);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 500; color: var(--gold);
  line-height: 1; margin-bottom: 8px;
  display: flex; align-items: baseline; justify-content: center; gap: 4px;
}
.counter-num .unit { font-size: 0.5em; color: var(--gold-dim); font-style: italic; }
.counter-label {
  font-family: var(--font-sans-en); font-size: 0.66rem;
  letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--text-mute);
}
.counter-label-jp {
  font-size: 0.78rem; color: var(--text);
  margin-top: 4px; letter-spacing: 0.05em;
}
@media(max-width:768px){
  .counter-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 0; }
  .counter-item:nth-child(2) { border-right: 0; }
  .counter-item { border-bottom: 1px solid var(--border); padding-bottom: 30px; }
  .counter-item:nth-child(3),
  .counter-item:nth-child(4) { border-bottom: 0; }
}

/* ─── SECTION COMMON ─────────────────────────────────── */
.section { padding: 140px 0; position: relative; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--font-sans-en); font-size: 0.72rem;
  letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 28px;
}
.section-eyebrow::before {
  content: ""; width: 40px; height: 1px; background: var(--gold);
}
.section-title {
  font-family: var(--font-serif-jp);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 500; line-height: 1.3; letter-spacing: 0.02em;
  color: var(--text); margin-bottom: 24px;
}
.section-title .en {
  display: block; font-family: var(--font-serif-en); font-style: italic;
  font-size: 0.6em; font-weight: 400; color: var(--gold-light);
  letter-spacing: 0.05em; margin-top: 8px;
}
.section-desc {
  font-size: 0.94rem; line-height: 2.1; color: var(--text-mute);
  max-width: 640px; margin-bottom: 60px;
}

.section-header { margin-bottom: 70px; }
.section-header.center { text-align: center; }
.section-header.center .section-eyebrow { justify-content: center; }
.section-header.center .section-desc { margin-left: auto; margin-right: auto; }

/* ─── ABOUT ─────────────────────────────────────────── */
.about {
  background: var(--bg-deep);
  position: relative;
}
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.about-image {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
}
.about-image img { width: 100%; height: 100%; object-fit: cover; }
.about-image::before {
  content: ""; position: absolute; top: -16px; left: -16px;
  width: 100%; height: 100%; border: 1px solid var(--gold);
  z-index: -1;
}
.about-content .section-eyebrow { margin-bottom: 32px; }
.about-quote {
  font-family: var(--font-serif-jp);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 500; line-height: 1.7;
  color: var(--text); margin-bottom: 36px;
  letter-spacing: 0.04em;
}
.about-text { font-size: 0.94rem; line-height: 2.1; color: var(--text-mute); margin-bottom: 18px; }
.about-sig {
  margin-top: 40px; padding-top: 30px; border-top: 1px solid var(--border);
  display: flex; align-items: baseline; gap: 24px;
}
.about-sig-name {
  font-family: var(--font-serif-jp); font-size: 1.1rem;
  color: var(--text); letter-spacing: 0.05em;
}
.about-sig-role {
  font-family: var(--font-sans-en); font-size: 0.7rem;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--gold);
}
@media(max-width:900px){
  .about-grid { grid-template-columns: 1fr; gap: 50px; }
  .about-image { max-width: 480px; margin: 0 auto; }
}

/* ─── SERVICES ─────────────────────────────────────── */
.services {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.services-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; border-left: 1px solid var(--border);
}
.service-card {
  position: relative; padding: 50px 36px;
  border-right: 1px solid var(--border);
  border-top: 1px solid var(--border);
  transition: background .4s ease;
  cursor: default;
}
.service-card:hover { background: var(--bg-card); }
.service-card-num {
  font-family: var(--font-serif-en); font-size: 0.92rem;
  font-style: italic; color: var(--gold);
  margin-bottom: 30px;
}
.service-card-image {
  aspect-ratio: 4/3;
  overflow: hidden; margin-bottom: 30px;
  filter: grayscale(0.2);
  transition: filter .5s ease, transform .5s ease;
}
.service-card:hover .service-card-image {
  filter: grayscale(0);
}
.service-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.service-card:hover .service-card-image img { transform: scale(1.06); }
.service-card-title {
  font-family: var(--font-serif-jp); font-size: 1.18rem;
  font-weight: 500; color: var(--text);
  margin-bottom: 14px; letter-spacing: 0.04em;
}
.service-card-en {
  font-family: var(--font-serif-en); font-style: italic;
  color: var(--gold-light); font-size: 0.84rem;
  margin-bottom: 18px;
}
.service-card-text {
  font-size: 0.82rem; line-height: 1.9; color: var(--text-mute);
}
@media(max-width:1100px){
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media(max-width:640px){
  .services-grid { grid-template-columns: 1fr; }
}

/* ─── WORKS ─────────────────────────────────────────── */
.works { background: var(--bg-deep); }
.works-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
}
.work-card {
  position: relative; cursor: default;
  transition: transform .4s ease;
}
.work-card:hover { transform: translateY(-8px); }
.work-card-image {
  aspect-ratio: 4/3; overflow: hidden;
  position: relative; margin-bottom: 24px;
}
.work-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.work-card:hover .work-card-image img { transform: scale(1.04); }
.work-card-image::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10,14,20,0.6) 100%);
}
.work-card-num {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(10,14,20,0.85); backdrop-filter: blur(8px);
  border: 1px solid var(--gold);
  padding: 6px 14px;
  font-family: var(--font-serif-en); font-size: 0.74rem;
  color: var(--gold); letter-spacing: 0.08em;
}
.work-card-info { padding: 0 4px; }
.work-card-category {
  font-family: var(--font-sans-en); font-size: 0.62rem;
  letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 10px;
}
.work-card-title {
  font-family: var(--font-serif-jp); font-size: 1.08rem;
  font-weight: 500; color: var(--text);
  margin-bottom: 10px; letter-spacing: 0.03em; line-height: 1.5;
}
.work-card-meta {
  font-size: 0.74rem; color: var(--text-mute);
  display: flex; gap: 14px; flex-wrap: wrap;
}
.work-card-meta span { display: inline-flex; align-items: center; gap: 6px; }
.work-card-meta .dot { width: 3px; height: 3px; background: var(--gold-dim); border-radius: 50%; }
@media(max-width:900px){ .works-grid { grid-template-columns: repeat(2, 1fr); } }
@media(max-width:640px){ .works-grid { grid-template-columns: 1fr; } }

/* ─── NEWS ─────────────────────────────────────────── */
.news {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.news-list { display: grid; gap: 0; }
.news-item {
  display: grid; grid-template-columns: 140px 140px 1fr auto;
  gap: 40px; align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: padding .3s ease, background .3s ease;
}
.news-item:hover { padding-left: 16px; padding-right: 16px; background: rgba(200,164,92,0.04); }
.news-item:last-child { border-bottom: 0; }
.news-date {
  font-family: var(--font-serif-en); font-size: 0.92rem;
  color: var(--gold-light); letter-spacing: 0.04em;
}
.news-cat {
  font-family: var(--font-sans-en); font-size: 0.62rem;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--text-mute);
  padding: 5px 12px; border: 1px solid var(--border-strong);
  justify-self: start;
}
.news-title {
  font-size: 0.96rem; color: var(--text); line-height: 1.6;
  transition: color .3s ease;
}
.news-item:hover .news-title { color: var(--gold-light); }
.news-arrow {
  width: 32px; height: 1px; background: var(--gold);
  position: relative; transition: width .3s ease;
}
.news-arrow::after {
  content: ""; position: absolute; right: 0; top: -3px;
  width: 8px; height: 8px;
  border-top: 1px solid var(--gold); border-right: 1px solid var(--gold);
  transform: rotate(45deg);
}
.news-item:hover .news-arrow { width: 48px; }
@media(max-width:768px){
  .news-item {
    grid-template-columns: auto auto;
    grid-template-rows: auto auto;
    gap: 8px 14px;
  }
  .news-title { grid-column: 1 / -1; }
  .news-arrow { display: none; }
}

/* ─── CONTACT CTA ─────────────────────────────────── */
.cta-band {
  background: var(--bg-deep);
  position: relative; overflow: hidden;
  padding: 120px 0;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(200,164,92,0.08), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(200,164,92,0.05), transparent 50%);
  z-index: 0;
}
.cta-inner { position: relative; z-index: 1; text-align: center; }
.cta-band .section-eyebrow { justify-content: center; }
.cta-band .section-title { font-size: clamp(2rem, 4.5vw, 3.4rem); }
.cta-actions {
  margin-top: 50px;
  display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
}

/* ─── FOOTER ──────────────────────────────────────── */
.site-footer {
  background: #050709;
  border-top: 1px solid var(--border);
  padding: 80px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px; margin-bottom: 60px;
}
.footer-brand .brand-mark { font-size: 1.6rem; margin-bottom: 18px; display: block; }
.footer-brand p {
  font-size: 0.82rem; line-height: 1.9; color: var(--text-mute);
  margin-top: 18px; max-width: 360px;
}
.footer-col h4 {
  font-family: var(--font-sans-en); font-size: 0.72rem;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 24px;
  padding-bottom: 14px; border-bottom: 1px solid var(--border);
}
.footer-col ul { list-style: none; display: grid; gap: 12px; }
.footer-col a { font-size: 0.82rem; color: var(--text-mute); transition: color .3s ease; }
.footer-col a:hover { color: var(--gold-light); }
.footer-bottom {
  padding-top: 30px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.72rem; color: var(--text-dim);
  letter-spacing: 0.06em;
}
.footer-license {
  font-family: var(--font-serif-en); letter-spacing: 0.1em;
}
@media(max-width:900px){
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media(max-width:640px){
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
}

/* ─── PAGE HEADER（下層ページ用）────────────────────── */
.page-header {
  padding: 220px 0 120px; position: relative;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.page-header::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at center, rgba(200,164,92,0.05), transparent 70%);
}
.page-header-inner { position: relative; z-index: 1; }
.page-header-en {
  font-family: var(--font-serif-en); font-style: italic;
  font-size: clamp(3rem, 8vw, 5.6rem);
  font-weight: 400; color: var(--gold);
  opacity: 0.4; line-height: 1; margin-bottom: 16px;
  letter-spacing: 0.06em;
}
.page-header-title {
  font-family: var(--font-serif-jp);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--text); letter-spacing: 0.1em;
}
.breadcrumb {
  display: flex; gap: 12px; justify-content: center; align-items: center;
  font-family: var(--font-sans-en); font-size: 0.7rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-mute); margin-top: 30px;
}
.breadcrumb a { color: var(--gold); }
.breadcrumb .sep { color: var(--gold-dim); }

/* ─── ABOUT PAGE ───────────────────────────────────── */
.history-list {
  display: grid; gap: 0;
  max-width: 800px; margin: 0 auto;
}
.history-item {
  display: grid; grid-template-columns: 200px 1fr;
  gap: 50px; padding: 36px 0;
  border-bottom: 1px solid var(--border);
}
.history-year {
  font-family: var(--font-serif-en);
  font-size: 1.8rem; font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.04em;
}
.history-content h4 {
  font-family: var(--font-serif-jp); font-size: 1.1rem;
  font-weight: 500; color: var(--text); margin-bottom: 10px;
}
.history-content p { font-size: 0.88rem; color: var(--text-mute); line-height: 1.9; }
@media(max-width:640px){
  .history-item { grid-template-columns: 1fr; gap: 8px; }
}

.company-info {
  display: grid; gap: 0;
  max-width: 800px; margin: 0 auto;
  border-top: 1px solid var(--border);
}
.info-row {
  display: grid; grid-template-columns: 220px 1fr; gap: 40px;
  padding: 24px 0; border-bottom: 1px solid var(--border);
}
.info-label {
  font-family: var(--font-sans-en); font-size: 0.7rem;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--gold); padding-top: 4px;
}
.info-value { font-size: 0.92rem; color: var(--text); line-height: 1.9; }
@media(max-width:640px){
  .info-row { grid-template-columns: 1fr; gap: 6px; }
}

/* ─── PROCESS PAGE ─────────────────────────────────── */
.process-list {
  display: grid; gap: 50px; max-width: 920px; margin: 0 auto;
  position: relative;
}
.process-item {
  display: grid; grid-template-columns: 120px 1fr;
  gap: 60px; align-items: start;
  padding-bottom: 50px; border-bottom: 1px solid var(--border);
  position: relative;
}
.process-item:last-child { border-bottom: 0; padding-bottom: 0; }
.process-num {
  font-family: var(--font-serif-en); font-style: italic;
  font-size: 3.6rem; font-weight: 400;
  color: var(--gold); line-height: 1; letter-spacing: 0.04em;
}
.process-content h4 {
  font-family: var(--font-serif-jp); font-size: 1.4rem;
  font-weight: 500; color: var(--text); margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.process-content p { font-size: 0.94rem; line-height: 2; color: var(--text-mute); }
.process-content ul { margin-top: 16px; padding-left: 20px; }
.process-content li { font-size: 0.86rem; color: var(--text-mute); line-height: 1.9; }
@media(max-width:640px){
  .process-item { grid-template-columns: 1fr; gap: 16px; }
  .process-num { font-size: 2.8rem; }
}

/* ─── CONTACT FORM ─────────────────────────────────── */
.contact-form {
  max-width: 720px; margin: 0 auto;
  display: grid; gap: 30px;
}
.form-row { display: grid; gap: 10px; }
.form-row label {
  font-family: var(--font-sans-en); font-size: 0.7rem;
  letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--gold);
}
.form-row input,
.form-row textarea,
.form-row select {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text); padding: 16px 20px;
  font-size: 0.94rem; font-family: var(--font-sans-jp);
  outline: none; transition: border .3s ease;
}
.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus { border-color: var(--gold); }
.form-row textarea { resize: vertical; min-height: 180px; }
.form-row.checkbox {
  flex-direction: row; align-items: center;
  display: flex; gap: 14px;
}
.form-row.checkbox label {
  text-transform: none; letter-spacing: 0.03em; font-family: var(--font-sans-jp);
  font-size: 0.84rem; color: var(--text-mute); margin: 0;
}
.form-actions { text-align: center; margin-top: 20px; }
.form-actions .btn-primary { display: inline-flex; min-width: 280px; justify-content: center; }

/* ─── PROSE（プライバシーポリシー、News詳細など） ───── */
.prose {
  max-width: 800px; margin: 0 auto;
  font-size: 0.94rem; line-height: 2; color: var(--text-mute);
}
.prose h2, .prose h3 {
  font-family: var(--font-serif-jp); color: var(--text);
  margin-top: 50px; margin-bottom: 20px; font-weight: 500;
  letter-spacing: 0.03em;
}
.prose h2 { font-size: 1.4rem; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.prose h3 { font-size: 1.15rem; }
.prose p { margin-bottom: 18px; }
.prose ul, .prose ol { margin: 16px 0 24px 24px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: var(--text); }

/* ─── REVEAL ANIMATION ─────────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s ease, transform 1s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ─── MOBILE (≤ 900px) ─────────────────────────────── */
@media (max-width: 900px) {
  .hamburger { display: block; }

  /* ハンバーガー: nav より前面に */
  .hamburger { z-index: 1150; }

  /* nav オーバーレイ（透け防止 — CLAUDE.mdルール厳守） */
  .header-nav {
    position: fixed; inset: 0;
    background: var(--bg-deep); /* 完全不透明 */
    z-index: 1100;
    flex-direction: column; justify-content: center; align-items: center;
    gap: 30px; padding: 80px 20px;
    transform: translateX(100%);
    transition: transform .5s cubic-bezier(.86,0,.07,1);
    /* 透明度・backdrop-filter は使わない */
  }
  .header-nav.open { transform: translateX(0); }
  .header-nav a {
    font-size: 1.4rem; font-family: var(--font-serif-jp); font-weight: 500;
    letter-spacing: 0.06em; text-transform: none;
    opacity: 0; transform: translateY(20px);
    transition: opacity .5s ease, transform .5s ease;
  }
  .header-nav.open a { opacity: 1; transform: translateY(0); }
  .header-nav.open a:nth-child(1) { transition-delay: .15s; }
  .header-nav.open a:nth-child(2) { transition-delay: .23s; }
  .header-nav.open a:nth-child(3) { transition-delay: .31s; }
  .header-nav.open a:nth-child(4) { transition-delay: .39s; }
  .header-nav.open a:nth-child(5) { transition-delay: .47s; }
  .header-nav.open a:nth-child(6) { transition-delay: .55s; }
  .header-nav.open .header-cta { margin-top: 20px; }
  .header-nav a::after { display: none; }

  /* スタッキングコンテキスト解除（必須） */
  .site-header.menu-active {
    background: var(--bg-deep) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  /* セクション余白縮小 */
  .section { padding: 80px 0; }
  .cta-band { padding: 70px 0; }
  .hero { padding-top: 100px; }
  .counter-strip { padding: 36px 0; }
}

@media (max-width: 640px) {
  .hero-eyebrow { font-size: 0.6rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost { width: 100%; justify-content: center; }
}

/* ====================================================
   横スクロール防止（2026-05-14 一括追加）
   CLAUDE.md ルール「html/body 両方に overflow-x:hidden」準拠
==================================================== */
html { overflow-x: hidden; }
body { overflow-x: hidden; }

/* ====================================================
   インラインstyle 2カラム→1カラム化（2026-05-15）
   左画像・右文章のインライン指定をスマホで1カラムに
==================================================== */
@media (max-width: 768px) {
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"],
  [style*="grid-template-columns:repeat(2"],
  [style*="grid-template-columns: repeat(2"],
  [style*="grid-template-columns:1.1fr"],
  [style*="grid-template-columns: 1.1fr"],
  [style*="grid-template-columns:1.05fr"],
  [style*="grid-template-columns: 1.05fr"] {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
}