/* ============================================================
   株式会社ライオー — 案A+C「インフラの誇り × モダン」
   重厚・骨太・信頼感 ＋ 動的・先進感
   ============================================================ */

@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
  .reveal.is-in { opacity: 1; transform: none; }
}

:root {
  --ink:        #1F2937;   /* チャコール（本文・見出し） */
  --steel:      #374151;
  --steel-2:    #4B5563;
  --steel-3:    #6B7280;
  --accent:     #1F2937;   /* グレースケール統一 */
  --accent-2:   #111827;
  --gold:       #A98B5D;   /* 真鍮（アクセント。細線・小文字・ホバーのみに使用） */
  --gold-2:     #C4A876;   /* 明るい真鍮（暗色背景の強調文字用） */
  --hiviz:      #6B7280;
  --hiviz-2:    #9CA3AF;
  --paper:      #FFFFFF;   /* ベース：白 */
  --paper-2:    #F4F4F5;   /* セクション交互の薄グレー */
  --concrete:   #E5E7EB;
  --concrete-2: #9CA3AF;
  --rule:       #D1D5DB;
  --line-light: rgba(31,41,55,0.10);
  --line-on-dark: rgba(255,255,255,0.14);

  --gutter: clamp(20px, 4vw, 64px);
  --container: 1320px;
}

* { box-sizing: border-box; }
/* scrollbar-gutter: スクロールバーの領域を常に確保する。js/intro.js のカーテン演出は
   その間だけ html に .intro-lock（overflow:hidden）を付けるが、これを入れないと
   デスクトップでスクロールバーが消えて画面幅が約15px広がり、ページ全体が横にずれる。
   ロック解除時に戻るため往復2回分がシフトとして計上され、実測 CLS 0.34（基準0.1）だった。
   モバイルはスクロールバーが幅を持たないため元から CLS 0（＝デスクトップ限定の事象）。 */
html { scroll-behavior: smooth; scroll-padding-top: 92px; scrollbar-gutter: stable; }
body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  font-weight: 500;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  font-feature-settings: "palt" 1;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; color: var(--hiviz); }

.pc-only { display: inline; }
@media (max-width: 720px) { .pc-only { display: none; } }

/* ============================================================
   HEADER — タイル柄グレー
============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background-color: #12161C;
  background-image: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 60%);
  color: var(--paper);
  border-bottom: 1px solid rgba(0,0,0,0.35);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05) inset;
  transition: box-shadow .3s ease, background-color .3s ease;
}
/* 6-A: スクロール時に濃く・影を強めて締める */
.site-header.is-scrolled {
  background-color: #0E1217;
  box-shadow: 0 6px 20px -10px rgba(0,0,0,0.6);
}
.site-header__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  transition: padding .3s ease;
}
.site-header.is-scrolled .site-header__inner { padding-top: 9px; padding-bottom: 9px; }
.logo__mark img { transition: height .3s ease; }
.site-header.is-scrolled .logo__mark img { height: 34px; }
@media (prefers-reduced-motion: reduce) {
  .site-header, .site-header__inner, .logo__mark img { transition: none; }
}
.header-tape {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(169,139,93,0.5) 20%, rgba(169,139,93,0.5) 80%, transparent);
}
/* 6-F: スクロール進捗バー（--progress を JS が更新） */
.header-tape::after {
  content: ""; position: absolute; left: 0; top: 0; height: 1px;
  width: var(--scroll-progress, 0%);
  background: var(--gold-2);
  box-shadow: 0 0 6px rgba(196,168,118,0.6);
}

.logo {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--paper);
}
.logo__mark { display: inline-flex; align-items: center; }
.logo__mark img { height: 42px; width: auto; display: block; }
.logo__type {
  display: flex; flex-direction: column; line-height: 1.1;
}
.logo__ja {
  font-family: "Noto Serif JP", serif;
  font-weight: 900;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--paper);
  text-shadow: 0 1px 0 rgba(0,0,0,0.4);
}
.logo__en {
  font-family: "Archivo Narrow", sans-serif;
  font-weight: 500;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
}

.nav {
  display: flex; gap: 28px; justify-content: center;
  font-size: 14.5px; font-weight: 700;
  letter-spacing: 0.04em;
}
.nav a {
  position: relative; padding: 6px 0;
  color: rgba(255,255,255,0.85);
  transition: color .15s ease;
  white-space: nowrap;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--gold-2);
  transition: right .25s ease;
}
.nav a:hover { color: var(--paper); }
.nav a:hover::after { right: 0; }
.nav a[aria-current="page"] { color: var(--paper); }
.nav a[aria-current="page"]::after { right: 0; }

.tel-cta {
  display: inline-flex; flex-direction: column; align-items: flex-end;
  padding: 8px 16px 8px 18px;
  border-left: 1px solid rgba(255,255,255,0.15);
  white-space: nowrap;
  line-height: 1.1;
}
.tel-cta__label {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.2em; color: rgba(255,255,255,0.6);
  text-transform: uppercase;
}
.tel-cta__number {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 22px;
  color: var(--paper);
  margin-top: 4px;
  letter-spacing: 0.02em;
  text-shadow: 0 1px 0 rgba(0,0,0,0.5);
}

/* ヘッダー右: 電話・メールのアイコンボタン */
.header-contact {
  display: inline-flex; align-items: center; gap: 10px;
}
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 2px;
  color: #fff;
  background: rgba(255,255,255,0.03);
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .15s ease;
}
.icon-btn:hover {
  background: rgba(169,139,93,0.14);
  border-color: var(--gold);
  color: var(--gold-2);
  transform: translateY(-1px);
}

@media (max-width: 1180px) {
  .nav { gap: 18px; font-size: 13px; }
  .tel-cta__number { font-size: 20px; }
  .logo__en { display: none; }
}

/* ----- hamburger toggle ----- */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid rgba(255,255,255,0.28);
  background: transparent;
  cursor: pointer;
  position: relative;
  border-radius: 2px;
  padding: 0;
  margin-left: 4px;
}
.nav-toggle:hover { border-color: rgba(255,255,255,0.5); }
.nav-toggle__bar {
  position: absolute; left: 11px; right: 11px;
  height: 1.5px;
  background: #fff;
  transition: transform .25s ease, opacity .12s ease, top .25s ease;
}
.nav-toggle__bar:nth-child(1) { top: 14px; }
.nav-toggle__bar:nth-child(2) { top: 21px; }
.nav-toggle__bar:nth-child(3) { top: 28px; }
.site-header.is-open .nav-toggle__bar:nth-child(1) { top: 21px; transform: rotate(45deg); }
.site-header.is-open .nav-toggle__bar:nth-child(2) { opacity: 0; }
.site-header.is-open .nav-toggle__bar:nth-child(3) { top: 21px; transform: rotate(-45deg); }

@media (max-width: 980px) {
  .site-header__inner { grid-template-columns: 1fr auto auto; gap: 10px; }
  .nav-toggle { display: inline-flex; }
  .nav {
    display: flex;
    position: fixed;
    top: 60px; left: 0; right: 0;
    max-height: calc(100dvh - 60px);
    overflow-y: auto;
    background: #0E1217;
    background-image: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, transparent 26%);
    flex-direction: column;
    align-items: stretch;
    padding: 24px var(--gutter) 40px;
    gap: 0;
    z-index: 99;
    border-top: 1px solid rgba(169,139,93,0.4);
    box-shadow: 0 18px 40px -14px rgba(0,0,0,0.6);
    /* 既定は隠す。開いたら降りてくる（フェード+スライド） */
    opacity: 0; visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .28s ease, transform .32s cubic-bezier(.2,.7,.2,1), visibility .28s;
  }
  .site-header.is-open .nav { opacity: 1; visibility: visible; transform: none; }
  /* 暗幕 */
  .nav-backdrop {
    position: fixed; inset: 60px 0 0; z-index: 98;
    background: rgba(6,9,13,0.5);
    opacity: 0; visibility: hidden;
    transition: opacity .28s ease, visibility .28s;
    backdrop-filter: blur(2px);
  }
  .site-header.is-open .nav-backdrop { opacity: 1; visibility: visible; }
  .nav a {
    transform: translateY(6px); opacity: 0;
    transition: transform .3s ease, opacity .3s ease;
  }
  .site-header.is-open .nav a { transform: none; opacity: 1; }
  .site-header.is-open .nav a:nth-child(1) { transition-delay: .06s; }
  .site-header.is-open .nav a:nth-child(2) { transition-delay: .12s; }
  .site-header.is-open .nav a:nth-child(3) { transition-delay: .18s; }
  .nav a {
    font-size: 17px;
    font-weight: 700;
    padding: 18px 4px;
    color: rgba(255,255,255,0.92);
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav a::after { display: none; }
  .nav a[aria-current="page"] { color: #fff; }
  .logo__ja { font-size: 16px; }
  .logo__mark img { height: 34px; }
  .tel-cta { padding: 6px 12px; }
  .tel-cta__label { font-size: 9.5px; }
  .tel-cta__number { font-size: 17px; }
}

/* ============================================================
   HERO
============================================================ */
/* ============================================================
   HERO — 映画的なフルブリード写真版
============================================================ */
.hero--cinematic {
  position: relative;
  min-height: 100vh;
  background: #050810;
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

.hero__slides {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero__slide {
  position: absolute; inset: -20px;
  opacity: 0;
  filter: contrast(1.02) saturate(0.92) brightness(0.92);
  animation: heroFade 24s infinite ease-in-out, heroZoom 24s infinite ease-out;
  overflow: hidden;
}
.hero__slide img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  display: block;
}
/* デスクトップ寄り（横長 viewport）でも横長画像は左右がクロップされるため、
   被写体側に object-position を寄せる。モバイル縦長ではさらに強めに寄せる。 */
/* スライド順: 1=hero7(水道) → 2=hero6(舗装) → 3=hero1(作業員+街) */
.hero__slide:nth-child(1) img { object-position: 55% center; } /* hero7: 水道管布設現場、掘削溝と作業員が中央やや右 */
/* 3 枚の明度・色温度を揃える（実測平均輝度 46% / 54% / 65%、hero1 は寒色） */
.hero__slide:nth-child(1) { filter: contrast(1.03) saturate(0.95) brightness(0.95); }
.hero__slide:nth-child(2) { filter: contrast(1.02) saturate(1.02) brightness(0.85); }
.hero__slide:nth-child(3) { filter: contrast(1.05) saturate(0.95) brightness(0.66) sepia(0.35); }
.hero__slide:nth-child(2) img { object-position: center; }     /* hero6: 舗装現場、作業員が中央やや右 */
.hero__slide:nth-child(3) img { object-position: 60% center; } /* hero1: helmet + 街並みバランス */

@media (max-width: 900px) {
  .hero__slide:nth-child(1) img { object-position: 55% center; }  /* hero7: 溝と作業員を中心に */
  .hero__slide:nth-child(2) img { object-position: 74% center; }  /* hero6: 狭幅では作業員の頭部が切れないよう右寄せ */
  .hero__slide:nth-child(3) img { object-position: 55% center; }
}
/* 日本語本文は文節単位で折り返す（Chrome/Edge 119+。非対応ブラウザでは従来動作） */
.hero__sub,
.sec-head__desc,
.page-hero__lede,
.about__text,
.philo__text,
.strength p,
.svc-detail__text,
.work-item__text,
.service-card__lede,
.cta-strip__text,
.contact__lede { word-break: auto-phrase; }

@media (max-width: 480px) {
  /* min-height: 70vh の効果で画像が縦に潰されずに済むため、各画像は中央寄りで全体感を出す */
  .hero__slide:nth-child(1) img { object-position: 55% center; }
  .hero__slide:nth-child(2) img { object-position: 74% center; }  /* hero6: 狭幅では作業員の頭部が切れないよう右寄せ */
  .hero__slide:nth-child(3) img { object-position: 55% center; }
}
.hero__slide:nth-child(1) { animation-delay: 0s; }
.hero__slide:nth-child(2) { animation-delay: 8s; }
.hero__slide:nth-child(3) { animation-delay: 16s; }
@keyframes heroFade {
  /* 8s 間隔・24s 周期。次スライドの立ち上がり（33.3%〜）と重なるよう
     フェードアウトを 44% まで伸ばし、無画像の「黒落ち」を作らない（最小合計不透明度 0.76） */
  0%   { opacity: 0; }
  6%   { opacity: 1; }
  30%  { opacity: 1; }
  44%  { opacity: 0; }
  100% { opacity: 0; }
}
@keyframes heroZoom {
  0%   { transform: scale(1.0); }
  33%  { transform: scale(1.10); }
  100% { transform: scale(1.10); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__slide { animation: none; opacity: 1; filter: contrast(1.08) saturate(0.78) brightness(0.78); }
  .hero__slide:nth-child(n+2) { display: none; }
}

.hero--cinematic .hero__veil {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(110deg, rgba(5,8,16,0.78) 0%, rgba(5,8,16,0.4) 50%, rgba(5,8,16,0.6) 100%),
    linear-gradient(180deg, rgba(5,8,16,0.4) 0%, transparent 25%, transparent 65%, rgba(5,8,16,0.85) 100%);
  pointer-events: none;
}

/* 縦書きサイドキャプション */
.hero__side {
  position: absolute; z-index: 4;
  display: flex; align-items: center; gap: 18px;
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.4em; text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.hero__side--left {
  top: 56px; left: var(--gutter);
  bottom: 56px;
}
.hero__side--right {
  top: 56px; right: var(--gutter);
  bottom: 56px;
  flex-direction: column;
}
.hero__side-rule {
  flex: 1; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(169,139,93,0.55) 30%, rgba(169,139,93,0.55) 70%, transparent);
}
.hero__side-text { color: rgba(255,255,255,0.44); letter-spacing: 0.42em; text-shadow: 0 1px 3px rgba(0,0,0,0.55); }

@media (max-width: 980px) {
  .hero__side { display: none; }
}

/* メイン */
.hero--cinematic .hero__inner {
  position: relative; z-index: 3;
  max-width: var(--container);
  margin: 0 auto;
  /* bottom: 下部 hero__footer (約 100px) と CTA が被らないよう退避 */
  padding: 80px calc(var(--gutter) + 64px) 140px;
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  gap: 0;
}
@media (max-width: 980px) {
  .hero--cinematic .hero__inner { padding: 80px var(--gutter) 180px; }
}

.hero__eyebrow-line {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 36px;
}
.hero__eyebrow-text {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11.5px; font-weight: 700;
  letter-spacing: 0.34em; text-transform: uppercase;
  color: rgba(196,168,118,0.92);
  text-shadow: 0 1px 3px rgba(0,0,0,0.55);
}

.hero__headline {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  margin: 0 0 32px;
  letter-spacing: 0.04em;
  line-height: 1.05;
  color: #fff;
}
.hero__h-line1 {
  display: block;
  font-size: clamp(48px, 6.4vw, 104px);
  margin-bottom: 4px;
}
.hero__h-line2 {
  display: block;
  font-size: clamp(64px, 9.6vw, 168px);
  line-height: 1.0;
  letter-spacing: 0.02em;
}
/* Web フォント（Noto Serif JP）差し替えによる CLS 対策。
   見出しは最大 168px で、フォールバック明朝 → Noto Serif JP に差し替わる瞬間に
   字幅が変わり <em>（築）が横に飛ぶ。実測 CLS 0.33 の全量がこれだった。
   line-height が数値指定のため箱の高さは変わらず、ずれるのは行内の水平位置だけ。
   よってフォント確定までこの h1 だけを不可視にすれば、下の要素を動かさずにシフトを消せる。
   .fonts-pending は js/fonts-ready.js が付ける（JS 無効時は付かない＝そのまま表示される）。
   1.1 秒のカーテン演出の裏で完了するため、体感上の遅延はない。 */
.fonts-pending .hero__headline { visibility: hidden; }

.hero__headline em {
  color: var(--gold-2);
  font-style: normal;
  font-size: 1.15em;
}

.hero__sub {
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 2;
  color: rgba(255,255,255,0.88);
  margin: 0 0 44px;
  max-width: 640px;
  font-weight: 500;
}

.hero--cinematic .hero__actions {
  display: flex; flex-wrap: wrap; gap: 14px;
}

/* フッターストリップ */
.hero__footer {
  position: absolute; left: 0; right: 0; bottom: 0;
  z-index: 3;
  padding: 24px calc(var(--gutter) + 64px);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 32px;
  border-top: 1px solid rgba(255,255,255,0.14);
  background: linear-gradient(180deg, transparent 0%, rgba(5,8,16,0.5) 100%);
  backdrop-filter: blur(2px);
}
.hero__footer-left,
.hero__footer-right {
  display: flex; flex-direction: column; gap: 4px;
}
.hero__footer-right { align-items: flex-end; text-align: right; }
.hero__footer-key {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold);
}
.hero__footer-val {
  font-family: "Noto Serif JP", serif; font-weight: 700;
  font-size: 16px; color: #fff;
}
.hero__footer-tel {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(24px, 2.6vw, 32px);
  letter-spacing: 0.02em;
  color: #fff;
  line-height: 1;
}
.hero__footer-tel:hover { color: var(--gold-2); }
.hero__footer-center {
  text-align: center;
}
.hero__index {
  display: inline-flex; align-items: baseline; gap: 8px;
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.25em;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
}
.hero__index em {
  font-family: "Archivo", sans-serif;
  font-style: normal; font-weight: 900;
  font-size: 30px;
  color: var(--gold);
  letter-spacing: 0;
  line-height: 1;
}

@media (max-width: 980px) {
  .hero--cinematic { min-height: 88vh; }
  .hero__footer {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 20px var(--gutter);
  }
  .hero__footer-right { align-items: flex-start; text-align: left; }
  .hero__footer-center { display: none; }
}
@media (max-width: 720px) {
  .hero--cinematic { min-height: 78vh; }   /* mobile: 高さを下げて画像クロップを軽減 */
  .hero--cinematic .hero__inner { padding-top: 80px; padding-bottom: 160px; }
}
@media (max-width: 480px) {
  .hero--cinematic { min-height: 70vh; }   /* small mobile: さらに低くして画像を多く見せる */
}

/* スクロールキューを上書き */
.hero--cinematic .scroll-cue {
  position: absolute; bottom: 90px; right: calc(var(--gutter) + 24px);
  z-index: 4;
  color: rgba(255,255,255,0.7);
}
.hero--cinematic .scroll-cue__line {
  background: linear-gradient(180deg, var(--gold) 0%, transparent 100%);
  position: relative; overflow: hidden;
}
.hero--cinematic .scroll-cue__line::after {
  content: ""; position: absolute; left: 0; width: 1px; height: 14px;
  background: linear-gradient(180deg, transparent, #fff, transparent);
  animation: scrollCue 2.4s ease-in-out infinite;
}
@keyframes scrollCue {
  0%   { top: -14px; opacity: 0; }
  25%  { opacity: 1; }
  75%  { opacity: 1; }
  100% { top: 48px; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .hero--cinematic .scroll-cue__line::after { animation: none; opacity: 0; }
}
@media (max-width: 980px) {
  .hero--cinematic .scroll-cue { display: none; }
}
/* General button + tag styles (shared) */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 20px 36px;
  font-size: 14.5px; font-weight: 700; letter-spacing: 0.12em;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, color .15s ease, border-color .15s;
  cursor: pointer;
  position: relative;
  text-transform: none;
}
.btn--primary {
  background: var(--paper); color: var(--ink); border-color: var(--paper);
}
.btn--primary:hover { background: var(--gold); border-color: var(--gold); color: var(--ink); transform: translateY(-2px); }
.btn--ghost {
  background: transparent; color: #fff; border-color: rgba(255,255,255,0.4);
}
.btn--ghost:hover { background: rgba(255,255,255,0.06); border-color: var(--gold); color: var(--gold); }

.tag {
  display: inline-flex; align-items: center;
  padding: 8px 14px;
  font-size: 11px; letter-spacing: 0.18em; font-weight: 700;
  color: var(--steel);
  border: 1px solid var(--line-light);
  background: var(--paper);
  text-transform: uppercase;
}
.tag--solid {
  background: var(--ink); color: var(--gold); border-color: var(--ink);
}

.scroll-cue {
  position: absolute; bottom: 24px; right: var(--gutter);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  font-family: "Archivo Narrow", sans-serif;
  font-size: 10px; letter-spacing: 0.3em;
  color: var(--concrete-2);
  z-index: 3;
}
.scroll-cue__line {
  width: 1px; height: 48px;
  background: linear-gradient(180deg, var(--gold) 0%, transparent 100%);
}
@media (max-width: 720px) { .scroll-cue { display: none; } }

/* ============================================================
   SECTION COMMON
============================================================ */
.section { padding: clamp(72px, 10vw, 140px) 0; }
.section__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.sec-head {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: end;
  gap: 16px 20px;
  margin-bottom: 56px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 18px;
}
.sec-head__num {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1; color: var(--gold);
  letter-spacing: -0.02em;
}
.sec-head__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--steel-3);
  align-self: end; padding-bottom: 8px;
  display: inline-flex; align-items: center; gap: 12px;
}
/* 07-D: 英字ラベル前の真鍮罫。sec-head が可視化されたら左から伸びる */
.sec-head__en::before {
  content: ""; width: 0; height: 1px; background: var(--gold);
  transition: width .7s cubic-bezier(.2,.7,.2,1) .15s;
}
.sec-head.is-visible .sec-head__en::before,
.sec-head:not(.js-reveal) .sec-head__en::before { width: 28px; }
@media (prefers-reduced-motion: reduce) {
  .sec-head__en::before { transition: none; width: 28px; }
}
.sec-head__ja {
  grid-column: 1 / -1;
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(28px, 4vw, 44px);
  margin: 0; letter-spacing: 0.04em;
  color: var(--ink);
}
.sec-head__desc {
  grid-column: 1 / -1;
  font-size: 14.5px; color: var(--steel-3);
  margin: 4px 0 0; max-width: 720px;
}

.sec-head--invert {
  border-color: rgba(255,255,255,0.4);
}
.sec-head--invert .sec-head__num { color: var(--gold); }
.sec-head--invert .sec-head__en { color: var(--concrete-2); }
.sec-head--invert .sec-head__ja { color: var(--paper); }
.sec-head--invert .sec-head__desc { color: rgba(255,255,255,0.7); }

/* ============================================================
   ABOUT
============================================================ */
.section--about { background: var(--paper); position: relative; }
.section--about::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold) 20%, var(--gold) 80%, transparent);
  opacity: 0.5;
}
.about__grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px 64px;
}
.about__grid .sec-head {
  margin-bottom: 0;
  position: relative;
  padding-left: 26px;
  /* 既定の align-content: stretch だと行間に余白が配分され、
     番号と見出しが縦に間延びするため上詰めにする */
  align-self: start;
  align-content: start;
}
/* 縦のヘアラインを通して左カラムを柱として見せる */
.about__grid .sec-head::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(169,139,93,0.08));
}
.about__grid .sec-head__num {
  font-size: clamp(44px, 4.6vw, 72px);
}

.about__body { max-width: 760px; }
.about__catch {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.5;
  margin: 0 0 28px;
}
.about__lead {
  font-size: clamp(17px, 1.5vw, 19.5px);
  line-height: 1.95;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 18px;
  letter-spacing: 0.02em;
}
.about__text {
  font-size: 15.5px; line-height: 2;
  margin: 0 0 18px;
  color: var(--steel-2);
}

.president {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 32px;
  padding: 34px 36px;
  background: var(--ink);
  color: var(--paper);
  border-left: 3px solid var(--gold);
  position: relative;
}
/* 上辺に真鍮のヘアラインを回して「特別な区画」に見せる */
.president::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, var(--gold), rgba(169,139,93,0) 70%);
}
.president__brand {
  aspect-ratio: 1 / 1;
  background-color: #12161C;
  background-image:
    linear-gradient(180deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0) 55%, rgba(0,0,0,0.2) 100%),
    linear-gradient(135deg, #3A3D44 0%, #232529 55%, #2C2F35 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 22px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset;
  outline: 1px solid rgba(169,139,93,0.55);
  outline-offset: 5px;
}
.president__logo { width: 100%; height: auto; max-width: 108px; display: block; }
.president__role {
  display: block;
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.3em;
  color: var(--gold-2);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.president__name {
  display: block;
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 26px; margin-bottom: 16px;
  color: var(--paper);
  letter-spacing: 0.04em;
}
.president__kana {
  font-family: "Noto Sans JP", sans-serif; font-weight: 500;
  font-size: 12px; letter-spacing: 0.1em;
  color: rgba(255,255,255,0.5); margin-left: 10px;
}
.president__msg {
  font-size: 14.5px; line-height: 1.95; margin: 0;
  color: rgba(255,255,255,0.82);
}

@media (max-width: 880px) {
  .about__grid { grid-template-columns: 1fr; }
  .president { grid-template-columns: 100px 1fr; padding: 20px; gap: 18px; }
}

/* ============================================================
   SERVICES
============================================================ */
.section--services {
  background: var(--paper-2);
  color: var(--ink);
  position: relative;
}
.section--services::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(10,19,32,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,19,32,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.section--services .section__inner { position: relative; }

.services {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
}
.service-card {
  grid-column: span 2;
  background: var(--paper);
  border: 1px solid var(--line-light);
  position: relative;
  display: flex; flex-direction: column;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.service-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
  box-shadow: 0 20px 48px -24px rgba(10,19,32,0.30);
}
.service-card--lead {
  grid-column: span 4;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: stretch;
}
.service-card__no {
  position: absolute; left: 0; bottom: 0; z-index: 3;
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 19px; letter-spacing: 0.12em; line-height: 1;
  color: var(--paper);
  background: rgba(24,32,44,0.90);
  border-top: 1px solid var(--gold);
  padding: 11px 18px 10px;
}
.service-card__visual {
  background: var(--steel);
  aspect-ratio: 16 / 10;
  position: relative;
}
.service-card--lead .service-card__visual {
  aspect-ratio: auto;
  min-height: 360px;
  order: 2;
}
.service-card__body {
  padding: 34px 30px 30px;
  display: flex; flex-direction: column; gap: 10px;
  flex: 1;
}
.service-card--lead .service-card__body { padding: 60px 56px; gap: 16px; }

.service-card__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 22px; margin: 0;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.service-card--lead .service-card__title { font-size: 36px; }
.service-card__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold);
  margin: -4px 0 0;
}
.service-card__lede {
  font-size: 13.5px; line-height: 1.9; margin: 4px 0 0;
  color: var(--steel-2);
}
.service-card--lead .service-card__lede { font-size: 15px; }
.service-card__tags {
  list-style: none; padding: 0; margin: 16px 0 0;
  display: flex; flex-wrap: wrap; gap: 8px 20px;
}
.service-card__tags li {
  font-size: 12px; padding: 0;
  border: 0; background: none;
  color: var(--steel-2);
  letter-spacing: 0.06em;
  display: inline-flex; align-items: center; gap: 8px;
}
.service-card__tags li::before {
  content: ""; width: 12px; height: 1px; background: var(--gold); flex: none;
}

.service-card__more {
  position: relative;
  margin-top: auto;
  padding-top: 18px;
  display: inline-flex; align-items: center; gap: 10px;
  font-family: "Archivo Narrow", sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  align-self: flex-start;
  border-bottom: 1px solid transparent;
  transition: gap .2s ease, color .15s, border-color .15s;
}
.service-card__more svg { transition: transform .2s ease; }
.service-card:hover .service-card__more { color: var(--ink); }
/* 「詳細を見る」の下に真鍮の下線が左から伸びる */
.service-card__more::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1px; width: 0;
  background: var(--gold);
  transition: width .5s cubic-bezier(.2,.7,.2,1);
}
.service-card:hover .service-card__more::after { width: 100%; }
@media (prefers-reduced-motion: reduce) {
  .service-card__more::after { transition: none; }
}
.service-card:hover .service-card__more svg { transform: translateX(4px); }
.service-card--lead .service-card__more { font-size: 13px; padding-top: 24px; }

@media (max-width: 1080px) {
  .services { grid-template-columns: repeat(4, 1fr); }
  .service-card { grid-column: span 2; }
  .service-card--lead { grid-column: span 4; }
}
@media (max-width: 720px) {
  .services { grid-template-columns: 1fr; gap: 16px; }
  .service-card, .service-card--lead { grid-column: span 1; }
  .service-card--lead { grid-template-columns: 1fr; }
  /* lead カードも他カードと同じ 16:11 で揃える（auto + min-height では肥大化する） */
  .service-card--lead .photo-card__img { aspect-ratio: 16 / 11; min-height: 0; height: auto; }
  .service-card--lead .service-card__visual { min-height: 0; order: 0; }
  .service-card--lead .service-card__body { padding: 24px 20px; }
  .service-card--lead .service-card__title { font-size: 26px; }
}

/* ============================================================
   STRENGTHS
============================================================ */
.section--strengths { background: var(--paper); }

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}
.strength {
  display: flex; flex-direction: column; gap: 12px;
  padding: 32px 26px;
  background: #fff;
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--gold);
  color: var(--ink);
  transition: transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s ease;
}
.strength:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px -24px rgba(10,19,32,0.28);
}
.strength__icon {
  color: var(--gold);
  padding-bottom: 10px;
  display: inline-flex;
}
.strength__icon svg { width: 46px; height: 46px; }
.strength h3 {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 19px; margin: 0;
  letter-spacing: 0.03em;
}
.strength p {
  font-size: 13.5px; line-height: 1.85; margin: 0;
  color: var(--steel-2);
}

.numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.numbers__item {
  padding: 32px 24px;
  display: flex; flex-direction: column; gap: 8px;
  border-right: 1px solid var(--line-light);
}
.numbers__item:last-child { border-right: none; }
.numbers__num {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(40px, 5.5vw, 64px);
  line-height: 1;
  color: var(--steel);
  display: inline-flex; align-items: baseline; gap: 4px;
}
.numbers__digit { letter-spacing: -0.02em; }
.numbers__suffix {
  font-family: "Noto Sans JP", sans-serif; font-weight: 700;
  font-size: 16px; color: var(--steel-2);
}
.numbers__label {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--steel-3);
  font-weight: 700;
}
.numbers__item:nth-child(3) .numbers__num { font-size: clamp(28px, 3.6vw, 40px); padding-bottom: 6px; }

@media (max-width: 880px) {
  .strengths-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .numbers { grid-template-columns: repeat(2, 1fr); }
  .numbers__item:nth-child(2) { border-right: none; }
  .numbers__item:nth-child(1), .numbers__item:nth-child(2) { border-bottom: 1px solid var(--line-light); }
}
@media (max-width: 480px) {
  .strengths-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   WORKS
============================================================ */
.section--works {
  background: var(--paper-2);
}
.works {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
}
.work {
  background: #fff;
  border: 1px solid var(--line-light);
}
.work__photo {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.work__photo svg { width: 100%; height: 100%; }
.work__tag {
  position: absolute; left: 0; top: 16px; z-index: 2;
  background: var(--ink); color: var(--gold);
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.2em;
  padding: 6px 14px 6px 14px;
  border-left: 2px solid var(--gold);
  text-transform: uppercase;
}
.work__meta { padding: 18px 20px 22px; }
.work__meta h3 {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 16px; margin: 0 0 6px;
}
.work__meta p {
  font-size: 12px; color: var(--steel-3); margin: 0;
  letter-spacing: 0.04em;
}

@media (max-width: 1080px) {
  .works { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .works { grid-template-columns: 1fr; }
}

/* ============================================================
   COMPANY
============================================================ */
.section--company { background: var(--paper); }
.company__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.company__grid .sec-head { grid-column: 1 / -1; }

.company-table {
  margin: 0;
}
.company-table .row {
  display: grid;
  grid-template-columns: 148px 1fr;
  gap: 16px;
  padding: 18px 12px;
  border-bottom: 1px solid var(--line-light);
  transition: background .2s ease;
}
.company-table .row:first-child { border-top: 1px solid var(--line-light); }
.company-table .row:hover { background: var(--paper-2); }
.company-table dt {
  font-weight: 700; font-size: 13.5px;
  color: var(--steel);
  letter-spacing: 0.08em;
  position: relative;
  padding-left: 16px;
}
.company-table dt::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 10px; height: 1px; background: var(--gold);
}
.company-table dd {
  margin: 0; font-size: 14.5px;
  color: var(--ink);
  line-height: 1.7;
}
.company-table dd .sub {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11.5px; letter-spacing: 0.2em;
  color: var(--steel-3); margin-left: 8px; text-transform: uppercase;
}

.company__map {
  position: sticky; top: 110px;
}
.map {
  border: 1px solid var(--line-light);
  border-top: 2px solid var(--gold);
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--concrete);
}
.map__note {
  font-size: 11px; color: var(--steel-3); margin: 10px 0 0;
}

@media (max-width: 880px) {
  .company__grid { grid-template-columns: 1fr; gap: 32px; }
  .company__map { position: static; }
}
@media (max-width: 480px) {
  .company-table .row { grid-template-columns: 1fr; gap: 4px; padding: 14px 4px; }
}

/* ============================================================
   RECRUIT
============================================================ */
.section--recruit {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.section--recruit::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 80% 30%, rgba(244,180,0,0.10), transparent 50%),
    linear-gradient(180deg, var(--ink) 0%, var(--steel) 100%);
  z-index: 0;
}
.section--recruit .section__inner { position: relative; z-index: 1; }

.recruit__grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px 64px;
}
.recruit__grid .sec-head { margin-bottom: 0; }
.recruit__body { max-width: 760px; }

.recruit__catch {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(36px, 5.5vw, 64px);
  line-height: 1.2; margin: 0 0 24px;
  letter-spacing: 0.04em;
}
.recruit__catch em {
  color: var(--hiviz); font-style: normal;
  border-bottom: 6px solid var(--hiviz); padding-bottom: 2px;
}
.recruit__text {
  font-size: 15px; line-height: 1.95;
  color: rgba(246,244,238,0.85);
  margin: 0 0 28px; max-width: 640px;
}
.recruit__jobs {
  list-style: none; padding: 0; margin: 0 0 32px;
  border-top: 1px solid rgba(255,255,255,0.18);
}
.recruit__jobs li {
  display: grid; grid-template-columns: 130px 1fr;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  font-size: 14.5px;
}
.recruit__jobs li span {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.25em;
  color: var(--hiviz); text-transform: uppercase;
  font-weight: 700;
  align-self: center;
}

@media (max-width: 880px) {
  .recruit__grid { grid-template-columns: 1fr; }
  .recruit__jobs li { grid-template-columns: 90px 1fr; font-size: 13.5px; }
}

/* ============================================================
   CONTACT
============================================================ */
.section--contact {
  background: var(--paper-2);
  color: var(--ink);
  padding: clamp(56px, 8vw, 96px) 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}
.section--contact::before,
.section--contact::after { content: none; }
.section--contact .section__inner { position: relative; z-index: 1; }
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.contact .sec-head { margin-bottom: 24px; border-color: var(--ink); }
.contact .sec-head__num { color: var(--steel-3); }
.contact .sec-head__en { color: var(--steel-3); }
.contact .sec-head__ja { color: var(--ink); }

.contact__lede {
  font-size: 15px; line-height: 1.95; margin: 0;
  color: var(--steel-2);
}

.contact__tel {
  display: flex; flex-direction: column; gap: 6px;
  padding: 36px 44px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line-light);
  border-top: 2px solid var(--ink);
  transition: transform .15s ease;
}
.contact__tel:hover { transform: translateY(-3px); }
.contact__tel-label {
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--steel-3);
  font-weight: 700;
}
.contact__tel-number {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(32px, 6vw, 64px);
  letter-spacing: 0.01em;
  color: var(--ink);
  line-height: 1;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.contact__tel-hours {
  font-size: 12.5px; color: var(--steel-3);
  margin-top: 6px;
}

.contact__form-link {
  display: inline-flex; align-items: center; gap: 12px;
  margin-top: 16px;
  padding: 16px 28px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--ink);
  font-size: 14px; font-weight: 700; letter-spacing: 0.1em;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.contact__form-link:hover {
  background: var(--ink); color: var(--paper); transform: translateY(-2px);
}
.contact__form-link svg { transition: transform .15s ease; }
.contact__form-link:hover svg { transform: translateX(4px); }

.inline-link {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  font-weight: 700;
  transition: opacity .15s;
}
.inline-link:hover { opacity: 0.7; }

@media (max-width: 880px) {
  .contact { grid-template-columns: 1fr; gap: 24px; }
}

/* 電話 + メール 横並びボタン（トップページお問い合わせ） */
.contact__actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: stretch;
}
.contact__actions .contact__tel { justify-content: flex-start; }
.contact__actions .contact__tel-number {
  font-size: clamp(20px, 2.8vw, 28px);
}
.contact__tel--mail .contact__tel-number {
  font-size: clamp(15px, 2vw, 21px);
  white-space: normal;
  word-break: break-all;
  line-height: 1.2;
}
@media (max-width: 560px) {
  .contact__actions { grid-template-columns: 1fr; }
}

/* 狭幅ヘッダー: 電話番号テキストをアイコン化したため社名を1行で表示 */
@media (max-width: 560px) {
  .logo { gap: 8px; }
  .logo__ja { font-size: 14.5px; white-space: nowrap; }
  .logo__mark img { height: 30px; }
  .icon-btn { width: 42px; height: 42px; }
  .header-contact { gap: 8px; }
}

/* ============================================================
   FOOTER — タイル柄グレー
============================================================ */
.site-footer {
  position: relative;
  background-color: #12161C;
  background-image: linear-gradient(180deg, rgba(255,255,255,0.035) 0%, rgba(255,255,255,0) 40%);
  color: rgba(255,255,255,0.78);
  padding-top: 64px;
  border-top: 1px solid rgba(0,0,0,0.4);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset;
}
.site-footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(169,139,93,0.6) 20%, rgba(169,139,93,0.6) 80%, transparent);
}
.site-footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 60px var(--gutter) 56px;
  display: grid;
  grid-template-columns: 1fr 2.2fr;
  gap: 56px;
}
.foot-logo { margin-bottom: 18px; }
.foot-logo img { width: auto; height: 88px; display: block; }
.foot-brand__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold-2);
  margin: 0 0 10px;
}
.foot-brand__addr {
  font-style: normal; font-size: 13px; line-height: 1.85;
  color: rgba(255,255,255,0.6);
}

.foot-nav {
  display: grid; grid-template-columns: 1.2fr 1fr 1.2fr; gap: 32px;
}
.foot-nav h4 {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--paper);
  border-bottom: 1px solid rgba(255,255,255,0.18);
  padding-bottom: 10px; margin: 0 0 14px;
}
.foot-nav a {
  display: block; font-size: 13.5px;
  padding: 6px 0;
  color: rgba(255,255,255,0.72);
  transition: color .15s;
}
.foot-nav a:hover { color: var(--paper); }
.foot-col--contact .foot-contact__tel {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 20px; letter-spacing: 0.02em; color: var(--paper);
  padding: 4px 0 2px;
}
.foot-col--contact .foot-contact__tel:hover { color: var(--gold-2); }
.foot-col--contact .foot-contact__fax {
  display: block; font-size: 12.5px; color: rgba(255,255,255,0.55); padding: 4px 0;
}
.foot-col--contact .foot-contact__mail { font-size: 13.5px; }

.foot-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 18px var(--gutter);
  border-top: 1px solid rgba(0,0,0,0.4);
  background: rgba(0,0,0,0.18);
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11.5px; letter-spacing: 0.15em;
  color: rgba(255,255,255,0.55);
}

@media (max-width: 720px) {
  .site-footer__inner { grid-template-columns: 1fr; gap: 36px; }
  .foot-nav { grid-template-columns: 1fr 1fr; gap: 28px 24px; }
}
@media (max-width: 480px) {
  .foot-nav { grid-template-columns: 1fr; }
}

/* ============================================================
   PHOTO CARDS (real photo treatment for service/works)
============================================================ */
.photo-card__img {
  position: relative;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  background: var(--steel);
}
.photo-card__img img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.02) saturate(0.95);
  transition: transform .8s cubic-bezier(.2,.7,.2,1), filter .4s ease;
  image-rendering: -webkit-optimize-contrast;
}
.photo-card:hover .photo-card__img img {
  transform: scale(1.04);
  filter: contrast(1.05) saturate(1);
}
.photo-card__img::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,16,29,0.08) 0%, rgba(7,16,29,0.02) 45%, rgba(7,16,29,0.32) 100%);
  z-index: 1; pointer-events: none;
}
.photo-card__img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 65%, rgba(7,16,29,0.18) 100%);
  z-index: 1; pointer-events: none;
}
.photo-card__corner {
  position: absolute; top: 0; left: 0; z-index: 2;
  background: var(--ink); color: var(--gold);
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; font-weight: 700; letter-spacing: 0.2em;
  padding: 6px 14px;
  border-bottom: 1px solid var(--gold);
}

/* override service-card visual to show real photos */
.service-card .photo-card__img { aspect-ratio: 16 / 10; }
.service-card--lead .photo-card__img { aspect-ratio: auto; height: 100%; min-height: 320px; }

/* ============================================================
   PAGE HERO (sub-pages) — 白基調
============================================================ */
.page-hero {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  padding: 96px 0 80px;
  overflow: hidden;
  border-bottom: 1px solid var(--line-light);
}
.page-hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold) 30%, var(--gold) 70%, transparent);
  opacity: 0.6;
}
.page-hero__bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(10,19,32,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,19,32,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at right, black, transparent 70%);
  opacity: 0.8;
}
.page-hero__inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
/* 左端に真鍮の縦罫を通して章の入口を締める */
.page-hero__inner::before {
  content: ""; position: absolute; left: 0; top: 6px; height: calc(100% - 12px); width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(169,139,93,0.05));
}
@media (min-width: 721px) { .page-hero__inner { padding-left: calc(var(--gutter) + 28px); } }
.crumbs {
  display: flex; align-items: center; gap: 10px;
  font-family: "Archivo Narrow", sans-serif;
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--steel-3);
  margin-bottom: 28px;
  font-weight: 700;
}
.crumbs a { color: var(--steel-3); transition: color .15s; }
.crumbs a:hover { color: var(--gold); }
.crumbs span { color: var(--gold); opacity: 0.7; }

.page-hero__num {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(80px, 14vw, 200px);
  line-height: 0.9;
  color: rgba(169,139,93,0.16);
  letter-spacing: -0.04em;
  position: absolute; top: 30px; right: var(--gutter);
  z-index: 0;
}
.page-hero__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(40px, 6.2vw, 88px);
  line-height: 1.1; margin: 0 0 22px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.page-hero__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  display: inline-flex; align-items: center; gap: 12px;
}
.page-hero__en::before {
  content: ""; width: 36px; height: 1px; background: var(--gold);
}
.page-hero__lede {
  max-width: 680px;
  font-size: 16px; line-height: 1.95;
  color: var(--steel-2);
  margin: 0;
}

/* ============================================================
   BIG CTA STRIP (used at bottom of sub-pages)
============================================================ */
.cta-strip {
  background: var(--ink);
  color: var(--paper);
  padding: 56px 0;
  position: relative;
}
.cta-strip::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px;
  background: var(--line-on-dark);
}
.cta-strip__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.cta-strip__text h3 {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  margin: 0 0 8px;
}
.cta-strip__text p {
  font-size: 14px; color: var(--concrete-2);
  margin: 0;
}
@media (max-width: 720px) {
  .cta-strip__inner { grid-template-columns: 1fr; }
}

/* ============================================================
   DETAIL CONTENT (service detail, about long-form)
============================================================ */
.svc-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 96px;
}
.svc-detail__item {
  scroll-margin-top: 140px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.svc-detail__item:nth-child(even) .svc-detail__visual { order: 2; }

.svc-detail__visual {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--steel-2);
}
.svc-detail__visual img {
  width: 100%; height: 100%; object-fit: cover;
  filter: contrast(1.02) saturate(0.95);
  transition: transform .9s cubic-bezier(.2,.7,.2,1);
}
.svc-detail__item:hover .svc-detail__visual img { transform: scale(1.05); }
.svc-detail__visual::before {
  content: ""; position: absolute; left: 0; top: 0;
  width: 80px; height: 80px;
  background: var(--gold); z-index: 2;
}
.svc-detail__visual .svc-detail__no {
  position: absolute; left: 18px; top: 14px;
  z-index: 3;
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 32px; color: #fff; line-height: 1;
}

.svc-detail__body { padding: 12px 0; }
.svc-detail__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold);
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 12px;
}
.svc-detail__en::before { content: ""; width: 24px; height: 1px; background: var(--gold); }
.svc-detail__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(28px, 3.6vw, 40px);
  margin: 0 0 18px;
  letter-spacing: 0.03em;
}
.svc-detail__text {
  font-size: 15px; line-height: 1.95;
  color: var(--steel-2);
  margin: 0 0 18px;
}
.svc-detail__subs {
  list-style: none; padding: 0; margin: 24px 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid var(--line-light);
}
.svc-detail__subs li {
  padding: 14px 4px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--line-light);
  display: flex; align-items: center; gap: 10px;
}
.svc-detail__subs li::before {
  content: ""; width: 12px; height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

@media (max-width: 880px) {
  .svc-detail__item { grid-template-columns: 1fr; gap: 24px; }
  .svc-detail__item:nth-child(even) .svc-detail__visual { order: 0; }
  .svc-detail__subs { grid-template-columns: 1fr; }
}

/* ============================================================
   WORK LIST — テキスト中心の事業内容（works.html）
============================================================ */
.works-index {
  position: sticky; top: 76px; z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line-light);
}
.works-index__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px var(--gutter);
  display: flex; gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.works-index__inner::-webkit-scrollbar { display: none; }
.works-index a {
  flex: none;
  padding: 10px 18px;
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--steel-2);
  border: 1px solid var(--line-light);
  background: var(--paper);
  white-space: nowrap;
  transition: border-color .15s, color .15s;
}
.works-index a:hover { border-color: var(--gold); color: var(--ink); }
.works-index a.is-current { border-color: var(--gold); color: var(--ink); background: var(--paper-2); }

.works-section { scroll-margin-top: 140px; }

.work-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 2px solid var(--ink);
}
.work-item {
  display: grid;
  grid-template-columns: 72px 300px 1fr;
  gap: 34px;
  padding: 40px 16px;
  border-bottom: 1px solid var(--line-light);
  scroll-margin-top: 140px;
  transition: background .25s ease;
  align-items: start;
}
.work-item:hover { background: var(--paper-2); }
.work-item--no-thumb { grid-template-columns: 96px 1fr; }
.work-item__thumb {
  width: 300px;
  height: auto;
  aspect-ratio: 800 / 558;
  object-fit: cover;
  border: 1px solid var(--line-light);
  background: var(--paper-2);
  filter: contrast(1.03) saturate(0.95);
  transition: filter .3s ease;
}
.work-item:hover .work-item__thumb { filter: contrast(1.03) saturate(1.05); }
.work-item:hover { background: rgba(168,135,82,0.04); }
.work-item__no {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 15px;
  color: var(--gold);
  letter-spacing: 0.12em;
  padding-top: 6px;
  position: relative;
}
.work-item__no::after {
  content: ""; display: block; width: 22px; height: 1px;
  background: var(--gold); margin-top: 10px; opacity: 0.6;
}
.work-item__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(22px, 2.4vw, 28px);
  margin: 0 0 14px;
  color: var(--ink);
  letter-spacing: 0.04em;
}
.work-item__text {
  font-size: 15px; line-height: 2;
  color: var(--steel-2);
  margin: 0;
  max-width: 820px;
}

.work-list-empty {
  border-top: 2px solid var(--ink);
  padding: 40px 0;
  font-size: 15px;
  color: var(--steel-3);
  margin: 0;
}

@media (max-width: 900px) {
  .work-item { grid-template-columns: 60px 220px 1fr; gap: 22px; }
  .work-item--no-thumb { grid-template-columns: 80px 1fr; }
  .work-item__thumb { width: 220px; }
}
@media (max-width: 720px) {
  .work-item { grid-template-columns: 1fr; gap: 14px; padding: 30px 0; }
  .work-item__no { padding-top: 0; font-size: 14px; }
  .work-item__no::after { display: none; }
  .work-item__thumb { width: 100%; max-width: 100%; }
  .work-item__title { font-size: 22px; }
  .work-item__text { font-size: 14.5px; line-height: 1.95; }
}

/* ============================================================
   ABOUT page enhancements
============================================================ */
.history {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
}
.history__item {
  display: contents;
}
.history__year {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 22px;
  color: var(--steel);
  padding: 24px 0;
  border-top: 1px solid var(--line-light);
}
.history__body {
  padding: 24px 0;
  border-top: 1px solid var(--line-light);
  font-size: 14.5px; line-height: 1.85;
  color: var(--steel-2);
}
.history__body strong {
  display: block;
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 4px;
}
@media (max-width: 720px) {
  .history { grid-template-columns: 1fr; gap: 0; }
  .history__year { padding-bottom: 4px; border: none; padding-top: 24px; border-top: 1px solid var(--line-light); }
  .history__body { padding-top: 8px; border: none; }
}

.philosophy {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.philo {
  background: var(--paper);
  color: var(--ink);
  padding: 36px 28px;
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--ink);
}
.philo__no {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 14px; letter-spacing: 0.2em;
  color: var(--steel-3);
  margin-bottom: 12px;
}
.philo__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 22px; margin: 0 0 12px;
  color: var(--ink);
}
.philo__text {
  font-size: 13.5px; line-height: 1.85;
  color: var(--steel-2);
  margin: 0;
}
@media (max-width: 720px) {
  .philosophy { grid-template-columns: 1fr; }
}

/* ============================================================
   CONTACT FORM
============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-side {
  background: var(--paper-2);
  color: var(--ink);
  padding: 36px;
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--ink);
}
.contact-side h3 {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 22px; margin: 0 0 18px;
  color: var(--ink);
}
.contact-side .big-tel {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(32px, 5vw, 48px);
  color: var(--ink);
  line-height: 1;
  display: block;
  margin: 18px 0 8px;
}
.contact-side p {
  font-size: 13.5px; line-height: 1.8;
  color: var(--steel-2);
  margin: 0;
}
.contact-side dl {
  margin: 24px 0 0; padding-top: 24px;
  border-top: 1px solid var(--line-light);
}
.contact-side dl div { display: grid; grid-template-columns: 88px 1fr; padding: 8px 0; font-size: 13px; }
.contact-side dl dt { color: var(--steel-3); }
.contact-side dl dd { margin: 0; color: var(--ink); }

.form {
  display: grid; gap: 18px;
}
.field {
  display: grid; gap: 8px;
}
.field label {
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.08em;
  color: var(--steel);
  display: flex; align-items: center; gap: 8px;
}
.field .req {
  background: var(--hiviz); color: var(--ink);
  font-size: 10px; padding: 2px 6px; letter-spacing: 0.1em;
}
.field input,
.field select,
.field textarea {
  font: inherit;
  padding: 14px 16px;
  border: 1px solid var(--concrete-2);
  background: #fff;
  border-radius: 0;
  font-size: 14.5px;
  color: var(--ink);
  transition: border-color .15s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--steel);
  box-shadow: 0 0 0 3px rgba(244,180,0,0.25);
}
.field textarea { resize: vertical; min-height: 140px; }

.form__submit {
  margin-top: 8px; justify-self: start;
}

@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ============================================================
   RECRUIT page extras
============================================================ */
.benefits {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.benefit {
  padding: 24px 22px;
  background: #fff;
  border: 1px solid var(--line-light);
  border-left: 4px solid var(--hiviz);
}
.benefit h4 {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 17px; margin: 0 0 8px;
}
.benefit p { font-size: 13px; line-height: 1.8; color: var(--steel-2); margin: 0; }
@media (max-width: 880px) { .benefits { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .benefits { grid-template-columns: 1fr; } }

.job {
  background: #fff;
  border: 1px solid var(--line-light);
  margin-bottom: 16px;
}
.job__head {
  padding: 18px 24px;
  display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center;
  background: var(--steel);
  color: var(--paper);
}
.job__no {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 16px; color: var(--hiviz);
  letter-spacing: 0.15em;
}
.job__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 19px; margin: 0;
}
.job__tag {
  background: var(--hiviz); color: var(--ink);
  font-size: 11px; font-weight: 700; padding: 4px 10px;
  letter-spacing: 0.1em;
}
.job__body {
  padding: 24px;
  display: grid; grid-template-columns: 140px 1fr; gap: 12px 24px;
  font-size: 14px;
}
.job__body dt { color: var(--steel-3); font-weight: 700; font-size: 12.5px; letter-spacing: 0.06em; padding-top: 4px; }
.job__body dd { margin: 0; color: var(--steel-2); line-height: 1.8; }
@media (max-width: 720px) {
  .job__body { grid-template-columns: 1fr; gap: 4px; }
  .job__body dd { padding-bottom: 8px; border-bottom: 1px solid var(--line-light); }
  .job__body dd:last-child { border: none; }
}

/* ============================================================
   MARQUEE — modern accent for hero
============================================================ */
.marquee {
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 14px 0;
}
.marquee__track {
  display: inline-flex; gap: 48px;
  white-space: nowrap;
  animation: marq 40s linear infinite;
  font-family: "Archivo Narrow", sans-serif;
  font-weight: 700; font-size: 13px; letter-spacing: 0.3em;
  text-transform: uppercase;
}
.marquee__track span { display: inline-flex; align-items: center; gap: 14px; color: var(--paper); }
.marquee__track span::after {
  content: "●"; color: rgba(255,255,255,0.35); font-size: 6px;
}
@keyframes marq {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }

/* small util */
.section--light { background: var(--paper); }
.section--concrete { background: var(--concrete); }

/* ============================================================
   §6-14 INVERTED SECTION（トーン反転）
============================================================ */
.section--inverted {
  background: #0F1419;
  color: rgba(255,255,255,0.92);
  position: relative;
  overflow: hidden;
}
.section--inverted::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.018) 0 1px, transparent 1px 96px);
  pointer-events: none;
}
.section--inverted .section__inner { position: relative; z-index: 1; }

.sec-head--on-dark .sec-head__num { color: var(--gold); }
.sec-head--on-dark .sec-head__en { color: rgba(255,255,255,0.55); }
.sec-head--on-dark .sec-head__ja { color: #fff; }
.sec-head--on-dark .sec-head__desc { color: rgba(255,255,255,0.65); }

.section--inverted .philo {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 3px solid var(--gold);
  color: rgba(255,255,255,0.85);
  position: relative;
  overflow: hidden;
  padding: 40px 30px;
  transition: transform .25s cubic-bezier(.2,.7,.2,1), background .25s ease;
}
.section--inverted .philo:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.065);
}
.section--inverted .philo__no {
  position: absolute;
  top: 6px; right: 14px;
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(56px, 9vw, 104px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(169,139,93,0.12);
  margin: 0;
  pointer-events: none;
  z-index: 0;
}
.section--inverted .philo__title {
  color: #fff;
  position: relative; z-index: 1;
}
.section--inverted .philo__text {
  color: rgba(255,255,255,0.7);
  position: relative; z-index: 1;
}

/* ============================================================
   §6-14 STRENGTH 巨大番号
============================================================ */
.strength {
  position: relative;
  overflow: hidden;
}
.strength__no {
  position: absolute;
  top: -10px; right: 10px;
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(56px, 9vw, 104px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(169,139,93,0.10);
  pointer-events: none;
  z-index: 0;
}
.strength__icon,
.strength h3,
.strength p {
  position: relative;
  z-index: 1;
}

/* philo eyebrow（VALUE）— giant philo__no と分離 */
.philo__eyebrow {
  display: inline-block;
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold-2);
  margin-bottom: 8px;
  position: relative; z-index: 1;
}


/* 事業内容セクション末尾の「主な対応工事はこちら」誘導 */
.services__more {
  margin: 48px 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--steel-2);
  line-height: 1.8;
}
.services__more-link {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: "Noto Sans JP", sans-serif; font-weight: 700;
  font-size: 14.5px;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 2px 0;
  transition: gap .2s ease, opacity .15s;
}
.services__more-link:hover { gap: 14px; opacity: 0.75; }
.services__more-link svg { transition: transform .2s ease; }

@media (max-width: 720px) {
  .services__more { font-size: 13px; }
}

/* お問い合わせセクション: トーン反転版（section--contact + section--inverted） */
.section--contact.section--inverted {
  background: #0F1419;
  border-top: none;
  border-bottom: none;
}
.section--contact.section--inverted::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.018) 0 1px, transparent 1px 96px);
  pointer-events: none;
}
.section--contact.section--inverted .contact__tel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-top: 2px solid #fff;
  color: var(--paper);
  padding: 44px 48px;
  gap: 12px;
  position: relative;
  transition: transform .15s ease, background .2s ease, border-color .2s ease;
}
.section--contact.section--inverted .contact__tel:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-3px);
}
.section--contact.section--inverted .contact__tel-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #fff;
  margin-bottom: 4px;
}
.section--contact.section--inverted .contact__tel-label {
  color: rgba(255,255,255,0.55);
}
.section--contact.section--inverted .contact__tel-number {
  color: #fff;
}
.section--contact.section--inverted .contact__tel-hours {
  color: rgba(255,255,255,0.5);
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-top: 6px;
}
.section--contact.section--inverted .contact__actions .contact__tel {
  padding: 30px 26px;
}

/* セクション末尾の誘導 CTA（雑誌風 EN+JP ロックアップ + アロー） */
.section-cta {
  margin: 56px 0 0;
  display: flex; justify-content: center;
}
.section-cta__link {
  display: inline-grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 22px 32px 22px 32px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  min-width: 360px;
  color: var(--ink);
  transition: background .25s ease, padding .25s ease;
  position: relative;
}
.section-cta__link::before {
  content: ""; position: absolute; left: 0; right: 0; top: 50%;
  height: 0;
  background: var(--ink);
  transform: translateY(-50%);
  transition: height .25s ease;
  z-index: 0;
  pointer-events: none;
}
.section-cta__link > * { position: relative; z-index: 1; transition: color .25s ease; }
.section-cta__link:hover { padding-left: 28px; padding-right: 36px; }
.section-cta__link:hover::before { height: 100%; }
.section-cta__link:hover > * { color: var(--paper); }

.section-cta__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--gold);
}
.section-cta__ja {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.section-cta__arrow { transition: transform .25s ease; }
.section-cta__link:hover .section-cta__arrow { transform: translateX(8px); }

@media (max-width: 720px) {
  .section-cta { margin-top: 40px; }
  .section-cta__link {
    min-width: 0; width: 100%; max-width: 360px;
    padding: 18px 20px;
    gap: 16px;
    grid-template-columns: auto 1fr auto;
  }
  .section-cta__en { font-size: 10px; letter-spacing: 0.24em; }
  .section-cta__ja { font-size: 15px; }
}

/* 改行ユーティリティ
   .br-pc: PC のみで改行（モバイルは自然折り返し）
   .br-sp: モバイルのみで改行（PC は無視）
   ブレークポイント: 720px */
.br-pc { display: inline; }
.br-sp { display: none; }
@media (max-width: 720px) {
  .br-pc { display: none; }
  .br-sp { display: inline; }
}
/* 熟語などを行またぎで分割させたくない箇所に付与 */
.nowrap { white-space: nowrap; }

/* サービスカード画像: ソース 1280x827 (比率 1.548) に完全一致させて上下クロップをゼロに。
   モバイルでは aspect-ratio + grid 子要素の iOS Safari バグ回避のため
   padding-bottom hack で高さを物理的に確保する */
@media (max-width: 720px) {
  .service-card .photo-card__img,
  .service-card--lead .photo-card__img {
    position: relative !important;
    width: 100% !important;
    height: 0 !important;
    padding-bottom: 64.6% !important; /* 827/1280 = 0.646... */
    min-height: 0 !important;
    aspect-ratio: auto !important;
  }
  .service-card .photo-card__img img,
  .service-card--lead .photo-card__img img {
    position: absolute !important;
    inset: 0 !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
  }
}

/* ============================================================
   狭幅時のタイポ調整（基底ルールより後ろに置いて確実に上書きする）
============================================================ */
@media (max-width: 480px) {
  /* 「暮らしを築く」が 2 行に割れる／右端で切れるのを防ぎ、一行に収める */
  .hero__h-line2 { font-size: 13.2vw; white-space: nowrap; }
}

/* 見出し・項目名も文節単位で折り返す（「代表メッセー/ジ」「ワンストッ/プ」等の分断を防ぐ） */
.sec-head__ja,
.strength h3,
.philo__title,
.svc-detail__title,
.work-item__title,
.cta-strip h3,
.company-table dd,
.contact__title { word-break: auto-phrase; }

/* 2カラム構成のセクション見出しは列幅が狭いため、7文字（代表メッセージ）が
   割れないサイズに抑える */
@media (min-width: 901px) {
  .about__grid .sec-head__ja { font-size: clamp(28px, 2.4vw, 36px); }
}

/* ============================================================
   スクロール連動フェードイン（js/reveal.js が付与するクラスのみで動作）
   JS が動かない環境では初期状態が付かないため、内容は常に表示される
============================================================ */
.js-reveal { opacity: 0; transform: translateY(16px); will-change: opacity, transform; }
.js-reveal.is-visible {
  opacity: 1; transform: none;
  transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1);
}
@media (prefers-reduced-motion: reduce) {
  .js-reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ============================================================
   SERVICES — 事業内容ショーケース
   既定（JS 無効・狭幅）は 1 カラムの縦積み。
   .is-enhanced かつ 960px 以上のときだけインデックス切替レイアウトになる。
============================================================ */
.svc-showcase { display: block; }
/* インデックスは切替レイアウトが有効な幅でのみ表示（狭幅では縦積みなので不要） */
.svc-nav { display: none; }

.svc-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  background: var(--paper);
  border: 1px solid var(--line-light);
  margin-bottom: 36px;
}
.svc-panel:last-child { margin-bottom: 0; }

.svc-panel__visual {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--steel);
}
.svc-panel__no {
  position: absolute; left: 0; bottom: 0; z-index: 3;
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: 19px; letter-spacing: 0.12em; line-height: 1;
  color: var(--paper);
  background: rgba(24,32,44,0.90);
  border-top: 1px solid var(--gold);
  padding: 11px 18px 10px;
}
.svc-panel__body {
  padding: 34px 30px 30px;
  display: flex; flex-direction: column; gap: 10px;
}
.svc-panel__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 11px; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--gold);
  margin: 0;
}
.svc-panel__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(24px, 2.4vw, 34px);
  margin: 0; color: var(--ink); letter-spacing: 0.04em;
}
.svc-panel__lede {
  font-size: 15.5px; line-height: 2; margin: 0;
  color: var(--steel-2);
  word-break: auto-phrase;
}
.svc-panel__tags {
  list-style: none; padding: 0; margin: 16px 0 0;
  display: flex; flex-wrap: wrap; gap: 8px 20px;
}
.svc-panel__tags li {
  font-size: 12px; color: var(--steel-2); letter-spacing: 0.06em;
  display: inline-flex; align-items: center; gap: 8px;
}
.svc-panel__tags li::before {
  content: ""; width: 12px; height: 1px; background: var(--gold); flex: none;
}
.svc-panel__more {
  position: relative;
  margin-top: auto; padding-top: 22px;
  display: inline-flex; flex-direction: column; gap: 4px;
  text-decoration: none;
  align-self: flex-start;
  transition: color .2s ease;
  color: var(--steel);
}
.svc-panel__more-en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 10px; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--gold);
}
.svc-panel__more-ja {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.06em;
}
.svc-panel__more::after {
  content: ""; position: absolute; left: 0; bottom: -4px; height: 1px; width: 0;
  background: var(--gold);
  transition: width .5s cubic-bezier(.2,.7,.2,1);
}
.svc-panel__more:hover { color: var(--ink); }
.svc-panel__more:hover::after { width: 100%; }
.svc-panel__more svg { transition: transform .2s ease; }
.svc-panel__more:hover svg { transform: translateX(4px); }

/* 広い画面では縦積みでも写真と本文を左右に分ける（JS 無効時の見え方） */
@media (min-width: 720px) {
  .svc-panel { grid-template-columns: 1.05fr 1fr; align-items: stretch; }
  .svc-panel__visual { aspect-ratio: auto; min-height: 320px; }
  .svc-panel__body { padding: 44px 40px; }
}

/* ---- JS 有効・960px 以上：インデックス切替 ---- */
@media (min-width: 960px) {
  .svc-showcase.is-enhanced {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 0 48px;
    align-items: start;
  }
  .svc-showcase.is-enhanced .svc-nav {
    display: block;
    list-style: none; margin: 0; padding: 0;
    border-top: 1px solid var(--line-light);
  }
  .svc-showcase.is-enhanced .svc-nav__item { border-bottom: 1px solid var(--line-light); }
  .svc-showcase.is-enhanced .svc-nav__btn {
    width: 100%;
    display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 18px;
    padding: 20px 6px 20px 4px;
    background: none; border: 0; cursor: pointer;
    text-align: left; color: var(--steel-2);
    transition: color .25s ease, padding-left .35s cubic-bezier(.2,.7,.2,1);
    position: relative;
  }
  .svc-showcase.is-enhanced .svc-nav__btn::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
    background: var(--gold); transform: scaleY(0); transform-origin: top;
    transition: transform .35s cubic-bezier(.2,.7,.2,1);
  }
  .svc-showcase.is-enhanced .svc-nav__no {
    font-family: "Archivo", sans-serif; font-weight: 900;
    font-size: 15px; letter-spacing: 0.14em;
    color: var(--concrete-2);
    transition: color .25s ease;
  }
  .svc-showcase.is-enhanced .svc-nav__text { display: block; }
  .svc-showcase.is-enhanced .svc-nav__ja {
    display: block;
    font-family: "Noto Serif JP", serif; font-weight: 900;
    font-size: 18px; letter-spacing: 0.04em; color: var(--ink);
    transition: color .25s ease;
  }
  .svc-showcase.is-enhanced .svc-nav__en {
    display: block; margin-top: 3px;
    font-family: "Archivo Narrow", sans-serif; font-weight: 700;
    font-size: 10.5px; letter-spacing: 0.28em; text-transform: uppercase;
    color: var(--concrete-2);
    transition: color .25s ease;
  }
  .svc-showcase.is-enhanced .svc-nav__btn:hover,
  .svc-showcase.is-enhanced .svc-nav__btn[aria-selected="true"] { padding-left: 18px; }
  .svc-showcase.is-enhanced .svc-nav__btn[aria-selected="true"]::before { transform: scaleY(1); }
  .svc-showcase.is-enhanced .svc-nav__btn[aria-selected="true"] .svc-nav__no,
  .svc-showcase.is-enhanced .svc-nav__btn[aria-selected="true"] .svc-nav__en { color: var(--gold); }
  .svc-showcase.is-enhanced .svc-nav__btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

  /* パネルは同じ場所に重ねて、選択中だけを表示 */
  .svc-showcase.is-enhanced .svc-panel {
    grid-column: 2; grid-row: 1;
    margin: 0;
    grid-template-columns: 1fr;
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity .45s ease;
  }
  .svc-showcase.is-enhanced .svc-panel.is-active {
    opacity: 1; visibility: visible; pointer-events: auto;
  }
  .svc-showcase.is-enhanced .svc-panel__visual { aspect-ratio: 16 / 9; min-height: 0; }
  .svc-showcase.is-enhanced .svc-panel__body { padding: 34px 36px 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .svc-showcase.is-enhanced .svc-panel { transition: none; }
  .svc-showcase.is-enhanced .svc-nav__btn,
  .svc-showcase.is-enhanced .svc-nav__btn::before { transition: none; }
  .svc-panel__more::after { transition: none; }
}

/* ============================================================
   WORKSITE STRIP（現場の断片）— ABOUT と SERVICES の間の写真帯
============================================================ */
.worksite-strip {
  background: var(--ink);
  overflow: hidden;
}
.worksite-strip__row {
  list-style: none; margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}
.worksite-strip__item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.worksite-strip__item:last-child { border-right: 0; }
.worksite-strip__item img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.35) saturate(0.7) brightness(0.72) contrast(1.05);
  transition: filter .6s ease, transform 1s cubic-bezier(.2,.7,.2,1);
}
.worksite-strip__item::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(24,32,44,0) 55%, rgba(24,32,44,0.5) 100%);
  pointer-events: none;
}
.worksite-strip__item:hover img {
  filter: grayscale(0) saturate(1) brightness(0.92) contrast(1.03);
  transform: scale(1.06);
}
@media (max-width: 900px) {
  .worksite-strip__row { grid-template-columns: repeat(3, 1fr); }
  /* 3列2段のときは 4,5,6 番目の下ボーダーを消す調整は不要（行間は grid-gap 無しで密） */
  .worksite-strip__item:nth-child(3) { border-right: 0; }
}
@media (max-width: 480px) {
  .worksite-strip__row { grid-template-columns: repeat(2, 1fr); }
  .worksite-strip__item:nth-child(2n) { border-right: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .worksite-strip__item img { transition: none; }
  .worksite-strip__item:hover img { transform: none; }
}

/* ============================================================
   SERVICES パネルの複数写真クロスフェード（金澤式スライダー相当）
   .svc-photo は photo-card__img 内で重なる。既定は先頭のみ表示。
   JS が是アクティブ写真を .is-current にして巡回する。
============================================================ */
/* 既定（JS 無効）: 先頭写真だけ即表示、追加写真は隠す（トランジション無し＝FOUC の点滅を防ぐ） */
.svc-panel__visual .svc-photo { opacity: 0; }
.svc-panel__visual .svc-photo:first-of-type { opacity: 1; }
/* スマホは切替を行わないため追加写真を描画しない（＝読み込みも止める） */
@media (max-width: 959px) {
  .svc-panel__visual .svc-photo:not(:first-of-type) { display: none; }
}
/* JS 有効時（コンテナに .js-photos）: is-current の写真をクロスフェード表示 */
.svc-panel__visual.js-photos .svc-photo { opacity: 0; transition: opacity 1.1s ease; }
.svc-panel__visual.js-photos .svc-photo:first-of-type { opacity: 0; }
.svc-panel__visual.js-photos .svc-photo.is-current { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .svc-panel__visual.js-photos .svc-photo { transition: none; }
}

/* ============================================================
   INTRO CURTAIN（ブランドカーテン）— js/intro.js が生成したときのみ表示
============================================================ */
.intro-lock { overflow: hidden; }
.intro-curtain {
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
}
.intro-curtain__panel {
  position: absolute; left: 0; right: 0; height: 50%;
  background: #12161C;
  transition: transform .8s cubic-bezier(.76,0,.24,1);
  will-change: transform;
}
.intro-curtain__panel--top { top: 0; }
.intro-curtain__panel--bottom { bottom: 0; }
.intro-curtain__logo {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.92);
  opacity: 0;
  transition: opacity .5s ease, transform .8s cubic-bezier(.2,.7,.2,1);
  z-index: 1;
}
.intro-curtain__logo img { display: block; width: 72px; height: auto; }
/* ロゴ点灯 */
.intro-curtain.is-active .intro-curtain__logo { opacity: 1; transform: translate(-50%, -50%) scale(1); }
/* 幕が上下に開く + ロゴ消灯 */
.intro-curtain.is-leaving .intro-curtain__panel--top { transform: translateY(-100%); }
.intro-curtain.is-leaving .intro-curtain__panel--bottom { transform: translateY(100%); }
.intro-curtain.is-leaving .intro-curtain__logo { opacity: 0; transition: opacity .3s ease; }

/* ============================================================
   CONTACT 強化（4-A 信頼リスト / 4-B カード格上げ）
============================================================ */
.contact__assur {
  list-style: none; margin: 22px 0 0; padding: 0;
  display: flex; flex-direction: column; gap: 12px;
}
.contact__assur li {
  position: relative; padding-left: 26px;
  font-size: 14.5px; letter-spacing: 0.02em;
  color: rgba(255,255,255,0.85);
}
.contact__assur li::before {
  content: ""; position: absolute; left: 0; top: 0.62em; width: 14px; height: 1px;
  background: var(--gold);
}

/* 4-B: 問い合わせカード */
.section--contact.section--inverted .contact__tel {
  border: 1px solid rgba(255,255,255,0.12);
  border-left: 3px solid var(--gold);
  background: rgba(255,255,255,0.04);
  padding: 30px 34px;
  transition: transform .25s cubic-bezier(.2,.7,.2,1), background .25s ease, border-color .25s ease;
}
.section--contact.section--inverted .contact__tel:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.2);
  border-left-color: var(--gold-2);
}
.section--contact.section--inverted .contact__tel-label { color: var(--gold-2); }
.section--contact.section--inverted .contact__tel-number { color: var(--paper); }

/* ============================================================
   PAGE TOP（4-E）
============================================================ */
.page-top {
  position: fixed; right: clamp(16px, 3vw, 40px); bottom: clamp(16px, 3vw, 40px);
  z-index: 60;
  display: inline-flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 14px 12px;
  background: rgba(18,22,28,0.85);
  border: 1px solid rgba(169,139,93,0.5);
  color: rgba(255,255,255,0.85);
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 9px; letter-spacing: 0.24em;
  text-decoration: none;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .35s ease, transform .35s ease, background .2s ease, border-color .2s ease;
  backdrop-filter: blur(4px);
}
.page-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.page-top:hover { background: rgba(18,22,28,0.95); border-color: var(--gold); color: #fff; }
.page-top svg { display: block; }
@media (prefers-reduced-motion: reduce) {
  .page-top { transition: opacity .2s ease; transform: none; }
}
@media (max-width: 720px) {
  .page-top span { display: none; }
  .page-top { padding: 12px; }
}

@media (max-width: 980px) and (prefers-reduced-motion: reduce) {
  .nav, .nav a, .nav-backdrop { transition: none; }
}

/* ============================================================
   07-B アクセシビリティ（スキップリンク / フォーカス可視化）
============================================================ */
.skip-link {
  position: fixed; top: -60px; left: 12px; z-index: 10000;
  background: var(--ink); color: #fff;
  padding: 12px 20px; font-size: 14px; font-weight: 700;
  text-decoration: none; border: 1px solid var(--gold);
  transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

/* キーボード操作時のフォーカス枠を真鍮で統一（マウスクリックには出さない） */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
.svc-nav__btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 1px;
}
@media (prefers-reduced-motion: reduce) {
  .skip-link { transition: none; }
}

/* ============================================================
   07-C 404 エラーページ（本体デザインに統一）
============================================================ */
.error-hero {
  position: relative;
  background: #0F1419;
  color: var(--paper);
  min-height: calc(100vh - 220px);
  display: flex; align-items: center;
  overflow: hidden;
  padding: clamp(72px, 12vh, 140px) 0;
}
.error-hero__bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at 50% 40%, #000, transparent 78%);
}
.error-hero__inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  text-align: center;
}
.error-hero__code {
  font-family: "Archivo", sans-serif; font-weight: 900;
  font-size: clamp(96px, 20vw, 220px); line-height: 0.9;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(196,168,118,0.55);
  text-stroke: 1.5px rgba(196,168,118,0.55);
}
.error-hero__en {
  font-family: "Archivo Narrow", sans-serif; font-weight: 700;
  font-size: 12px; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--gold-2);
  margin: 18px 0 0;
  display: inline-flex; align-items: center; gap: 12px;
}
.error-hero__en::before, .error-hero__en::after {
  content: ""; width: 24px; height: 1px; background: var(--gold);
}
.error-hero__title {
  font-family: "Noto Serif JP", serif; font-weight: 900;
  font-size: clamp(24px, 3.4vw, 36px);
  margin: 20px 0 18px; letter-spacing: 0.04em;
}
.error-hero__text {
  font-size: 15px; line-height: 2;
  color: rgba(255,255,255,0.72);
  margin: 0 auto; max-width: 560px;
}
.error-hero__actions {
  margin: 36px 0 0;
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: center;
}
.error-hero__ghost { color: #fff; border-color: rgba(255,255,255,0.4); }
.error-hero__links {
  margin: 40px auto 0;
  display: flex; gap: 28px; flex-wrap: wrap; justify-content: center;
  padding-top: 24px;
  max-width: 480px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.error-hero__links a {
  font-size: 13.5px; color: rgba(255,255,255,0.7);
  transition: color .15s ease;
}
.error-hero__links a:hover { color: var(--gold-2); }
@media (max-width: 480px) {
  .error-hero__actions { flex-direction: column; width: 100%; max-width: 320px; margin-inline: auto; }
  .error-hero__actions .btn { width: 100%; justify-content: center; }
  .error-hero__links { gap: 16px 20px; }
}

/* ============================================================
   スマホ最適化（レビュー対応）
============================================================ */
/* (4) 狭幅ではヒーローの暗幕を軽くして写真を見せる */
@media (max-width: 720px) {
  .hero--cinematic .hero__veil {
    background:
      linear-gradient(110deg, rgba(5,8,16,0.55) 0%, rgba(5,8,16,0.32) 55%, rgba(5,8,16,0.5) 100%),
      linear-gradient(180deg, rgba(5,8,16,0.3) 0%, transparent 30%, transparent 62%, rgba(5,8,16,0.72) 100%);
  }
}
/* (5) スマホの問い合わせ番号を主CTAとして拡大 */
@media (max-width: 720px) {
  .contact__actions .contact__tel-number { font-size: 26px; }
  .contact__tel--mail .contact__tel-number { font-size: 18px; }
}

/* ========================================================================
   FAQ（よくあるご質問）— 2026-08-29 本番公開時に追加
   ヒラギノ系の本文トーンに合わせ、罫線1本＋真鍮のヘアラインだけで構成する。
   ======================================================================== */
.section--faq { background: var(--paper); }

.faq {
  margin-top: clamp(36px, 5vw, 56px);
  border-top: 1px solid var(--rule);
}
.faq details {
  position: relative;
  border-bottom: 1px solid var(--rule);
}
/* 開いている項目の左端に真鍮のヘアライン */
.faq details::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: var(--gold);
  transform: scaleY(0); transform-origin: top;
  transition: transform .35s cubic-bezier(.4, 0, .2, 1);
}
.faq details[open]::before { transform: scaleY(1); }

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: clamp(20px, 2.4vw, 26px) 48px clamp(20px, 2.4vw, 26px) 20px;
  font-size: clamp(15px, 1.15vw, 17px);
  font-weight: 700;
  line-height: 1.7;
  color: var(--ink);
  transition: padding-left .25s cubic-bezier(.4, 0, .2, 1), color .25s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { padding-left: 26px; color: var(--steel); }
.faq summary:focus-visible { outline: 2px solid var(--gold); outline-offset: -2px; }

/* 右端の開閉シェブロン */
.faq summary::after {
  content: "";
  position: absolute; right: 14px; top: 50%;
  width: 10px; height: 10px;
  margin-top: -8px;
  border-right: 1px solid var(--steel-3);
  border-bottom: 1px solid var(--steel-3);
  transform: rotate(45deg);
  transition: transform .35s cubic-bezier(.4, 0, .2, 1);
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -3px; }

.faq__a {
  padding: 0 48px clamp(22px, 2.6vw, 30px) 20px;
  font-size: clamp(14px, 1.05vw, 15.5px);
  font-weight: 500;
  line-height: 2;
  color: var(--steel-2);
}
.faq details[open] .faq__a { animation: faq-in .4s cubic-bezier(.2, .7, .2, 1); }
.faq__a a {
  color: var(--steel);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 1px;
}
.faq__a a:hover { color: var(--gold); }

@keyframes faq-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .faq details::before,
  .faq summary,
  .faq summary::after { transition: none; }
  .faq details[open] .faq__a { animation: none; }
}