@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;700;800&family=Noto+Sans+JP:wght@300;400;500;700&family=Noto+Serif+JP:wght@300;500;700;900&display=swap');

/* ==========================================================================
   1. Design Tokens (Administrative Trust & Clean Modern)
   ========================================================================== */
:root {
  --color-bg: #ffffff;           /* クリーンな純白 */
  --color-bg-light: #f5f8f6;     /* 澄んだ薄いセージグレー (申請感・知的印象) */
  --color-primary: #006934;      /* フォレストグリーン (ロゴ基準) */
  --color-primary-dark: #004d26;
  --color-accent: #c8b195;       /* 砂金ゴールド (真鍮系・落ち着いたアクセント) */
  --color-accent-hover: #bda384;
  --color-text-dark: #202b24;     /* 深みのあるダークフォレストグレー (文字用) */
  --color-text-muted: #627268;   /* セージがかったソフトなグレー */
  --color-border: #d2ded7;       /* 方眼紙や図面のような美しい極細境界線 */
  --color-white: #ffffff;
  
  --font-family-serif: 'Noto Serif JP', serif;
  --font-family-sans: 'Noto Sans JP', sans-serif;
  --font-family-en: 'Cinzel', serif;
  --transition-elegant: cubic-bezier(0.25, 1, 0.5, 1);
}

/* ==========================================================================
   2. Reset & Core Settings (Strictly Sharp, 0px border-radius)
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* 角丸は絶対厳禁 */
}

ul, ol {
  list-style: none;
}

button, input[type="submit"], input[type="button"], input[type="reset"] {
  background: none;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
}

body {
  font-family: var(--font-family-sans); /* 本文は読みやすいゴシック */
  color: var(--color-text-dark);
  background-color: var(--color-bg);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.4s var(--transition-elegant);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  transition: transform 1.5s var(--transition-elegant);
}

.document-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1; /* セクション背景の上、かつコンテンツの下に配置 */
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  opacity: 0.25;
}

/* 各セクションをスタッキングの基準にし、背景色を最背面に配置 */
.hero, .concept, .services, .works, .news-sec, .recruit-sec, .contact-sec, .company-sec, .footer {
  position: relative;
}

.document-line {
  border-right: 1px solid var(--color-border);
  height: 100%;
}

/* ==========================================================================
   3. Typography & Section Headers
   ========================================================================== */
.section-header {
  position: relative;
  z-index: 10;
  margin-bottom: 6rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.section-en {
  font-family: var(--font-family-en);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  color: var(--color-primary);
  display: block;
  margin-bottom: 0.75rem;
}

.section-ja {
  font-family: var(--font-family-serif);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-dark);
}

/* Vertical Slogans for Japanese elegance */
.vertical-text-container {
  writing-mode: vertical-rl;
  letter-spacing: 0.4em;
  line-height: 1.6;
  font-family: var(--font-family-serif);
}

.vertical-large-headline {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--color-text-dark);
}

.vertical-large-headline span {
  color: var(--color-primary);
  border-right: 2px solid var(--color-accent);
  padding-right: 0.5rem;
}

/* Background floating text in Serif */
.floating-bg-serif {
  font-family: var(--font-family-en);
  font-size: 11vw;
  font-weight: 400;
  color: rgba(0, 105, 52, 0.03); /* 淡いグリーン */
  white-space: nowrap;
  position: absolute;
  z-index: 0;
  pointer-events: none;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* ==========================================================================
   4. Buttons & CTAs (Clean, Solid, Precise)
   ========================================================================== */
.btn-clean,
input[type="submit"].btn-clean,
button.btn-clean {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 1.25rem 3.5rem;
  background-color: var(--color-primary) !important;
  color: #ffffff !important;
  font-family: var(--font-family-serif);
  font-weight: 500;
  letter-spacing: 0.15em;
  cursor: pointer;
  border: 1px solid var(--color-primary) !important;
  transition: all 0.4s var(--transition-elegant);
  text-decoration: none;
  margin-left: auto !important;
  margin-right: auto !important;
}

.btn-clean::after {
  content: '';
  width: 25px;
  height: 1px;
  background-color: #ffffff;
  transition: width 0.4s, transform 0.4s;
}

.btn-clean:hover,
input[type="submit"].btn-clean:hover,
button.btn-clean:hover {
  background-color: var(--color-primary-dark) !important;
  border-color: var(--color-primary-dark) !important;
  color: #ffffff !important;
}

.btn-clean:hover::after {
  width: 35px;
  transform: translateX(5px);
}

.btn-clean-outline,
input[type="submit"].btn-clean-outline,
button.btn-clean-outline {
  background-color: transparent !important;
  color: var(--color-primary) !important;
  border: 1px solid var(--color-primary) !important;
}

.btn-clean-outline::after {
  background-color: var(--color-primary);
}

.btn-clean-outline:hover,
input[type="submit"].btn-clean-outline:hover,
button.btn-clean-outline:hover {
  background-color: var(--color-primary) !important;
  color: #ffffff !important;
}

.btn-clean-outline:hover::after {
  background-color: var(--color-white);
}

/* ==========================================================================
   5. Header Navigation
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}

/* Header Top Bar (Fine Strip) */
.header-top-bar {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  height: 40px;
  display: flex;
  align-items: center;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.header-top-container {
  max-width: 1500px;
  width: 100%;
  margin: 0 auto;
  padding: 0 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-catch {
  letter-spacing: 0.05em;
}

.header-top-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-top-tel a {
  font-family: var(--font-family-serif);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.85rem;
}

.header-top-tel a:hover {
  color: var(--color-accent);
}

.header-container {
  display: grid;
  grid-template-columns: 240px 1fr 180px; /* 右側も固定幅に変更してメニューのズレを完全防止 */
  align-items: center;
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 4rem;
  height: 80px; /* 100px から 80px にスリム化 */
}

.nav {
  justify-self: center;
}

/* SPメニュー専用要素をPC表示で非表示にする */
.nav-sp-brand,
.nav-sp-footer {
  display: none;
}

.nav-list {
  display: flex;
  gap: 3.5rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--color-text-dark);
  position: relative;
  padding: 0.5rem 0;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width 0.4s var(--transition-elegant);
}

.nav-link:hover::after {
  width: 100%;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 3rem;
  height: 100%;
  justify-self: end; /* 右端に寄せる */
}

/* ヘッダーCONTACTボタン専用の幅固定定義（レイアウトシフト防止） */
.header-cta-btn {
  padding: 0.75rem 0 !important;
  font-size: 0.8rem !important;
  width: 170px;
  box-sizing: border-box;
  justify-content: center !important;
  gap: 1.5rem !important;
}

.header-phone-box {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  border-left: 1px solid var(--color-border);
  padding-left: 2.5rem;
}

.header-phone-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-bottom: 0.2rem;
}

.header-phone-num {
  font-family: var(--font-family-en);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  line-height: 1;
}

.menu-trigger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 16px;
  cursor: pointer;
}

.menu-trigger span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-text-dark);
}

/* ==========================================================================
   6. Hero Section (Split Screen Parallax - Bright, Clean)
   ========================================================================== */
.hero {
  height: 100vh;
  min-height: 800px;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-light);
  width: 100%;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100%;
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 4rem;
  width: 100%;
  position: relative;
}

.hero-left {
  padding: 12rem 4rem 4rem 0;
  display: flex;
  flex-direction: row-reverse;
  justify-content: space-between;
  align-items: center;
  z-index: 10;
  border-right: 1px solid var(--color-border);
}

.hero-slogan-vertical {
  height: 85%;
  display: flex;
  align-items: center;
}

.hero-meta-block {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  max-width: 350px;
}

.hero-subtitle {
  font-family: var(--font-family-en);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.4em;
  text-transform: uppercase;
}

.hero-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 2;
  border-left: 2px solid var(--color-accent);
  padding-left: 2rem;
}

.hero-right {
  position: relative;
  overflow: hidden;
  height: 100%;
  z-index: 2; /* グリッド線より前面に配置 */
}

.hero-parallax-img-wrap {
  width: 100%;
  height: 130%;
  position: absolute;
  top: -15%;
  left: 0;
  will-change: transform;
}

.hero-parallax-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(102%) brightness(96%);
}

/* ==========================================================================
   7. Concept Section (Pristine grid, legal paper feel)
   ========================================================================== */
.concept {
  padding: 12rem 0;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.container-wide {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 4rem;
  position: relative;
  z-index: 2; /* グリッド線より前面に配置 */
}

.concept-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 8rem;
  align-items: center;
}

.concept-visual {
  position: relative;
}

.concept-img-frame {
  border: 1px solid var(--color-border);
  padding: 12px;
  background-color: var(--color-white);
  position: relative;
  overflow: hidden;
  height: 600px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.03);
}

.concept-img-parallax {
  width: 100%;
  height: 120%;
  position: absolute;
  top: -10%;
  left: 0;
  object-fit: cover;
  will-change: transform;
}

.concept-content-box {
  position: relative;
  z-index: 10;
}

.concept-headline {
  font-family: var(--font-family-serif);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.6;
  margin-bottom: 3rem;
  color: var(--color-text-dark);
}

.concept-headline span {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 0.2rem;
}

.concept-desc-text {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 4rem;
}

.concept-desc-text p {
  margin-bottom: 1.8rem;
}

.concept-profile {
  display: flex;
  justify-content: flex-start;
  gap: 4rem;
  align-items: center;
  border-top: 1px solid var(--color-border);
  padding-top: 2.5rem;
}

.profile-rep {
  font-family: var(--font-family-serif);
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.profile-rep span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 0.25rem;
}

.profile-license {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: left;
  line-height: 1.7;
  border-left: 2px solid var(--color-accent);
  padding-left: 2rem;
}

/* ==========================================================================
   8. Services (Clean Panels Grid, High Trust)
   ========================================================================== */
.services {
  padding: 12rem 0;
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.services-layout-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4rem;
}

.service-card-minimal {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 4.5rem;
  transition: all 0.4s var(--transition-elegant);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 440px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.01);
  position: relative;
  overflow: hidden;
}

/* カード内のテキストやタグが背景画像より前面に出るように指定 */
.service-card-minimal > div,
.service-card-minimal > .service-tags {
  position: relative;
  z-index: 2;
}

/* 共通の背景画像レイヤー */
.service-card-minimal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.28; /* 通常時はうっすら見える（0.12から不透明度を高めて視認性向上） */
  transition: opacity 0.4s var(--transition-elegant), transform 0.6s var(--transition-elegant);
  pointer-events: none;
}

/* 各カードの背景画像（グラデーションを少し薄くして画像が見えやすくブレンド） */
.service-card-01::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 10%, rgba(255, 255, 255, 0.1) 100%), url('../images/takuchi_excavation_1.jpg') no-repeat center/cover;
}
.service-card-02::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 10%, rgba(255, 255, 255, 0.1) 100%), url('../images/parking_line_construction.jpg') no-repeat center/cover;
}
.service-card-03::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 10%, rgba(255, 255, 255, 0.1) 100%), url('../images/pavement_repair_complete.jpg') no-repeat center/cover;
}
.service-card-04::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 10%, rgba(255, 255, 255, 0.1) 100%), url('../images/yoheki_construction.jpg') no-repeat center/cover;
}

/* ホバー時に画像を少しクリアにしてズームする */
.service-card-minimal:hover::before {
  opacity: 0.45; /* 0.22から高めて画像をしっかり見せる */
  transform: scale(1.06);
}

.service-card-minimal:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 15px 35px rgba(0, 105, 52, 0.04);
}

.service-num {
  font-family: var(--font-family-en);
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-accent);
  margin-bottom: 2rem;
  display: block;
}

.service-title {
  font-family: var(--font-family-serif);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--color-text-dark);
}

.service-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.service-tag {
  font-size: 0.75rem;
  background-color: var(--color-bg-light);
  color: var(--color-text-muted);
  padding: 0.3rem 1.1rem;
  border: 1px solid var(--color-border);
}

.service-card-minimal:hover .service-num {
  color: var(--color-primary);
  text-shadow: 0 0 5px rgba(0,105,52,0.1);
}

/* ==========================================================================
   9. Works (Symmetric High-Art Serif Portfolio Grid)
   ========================================================================== */
.works {
  padding: 12rem 0;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.works-filter-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 5rem;
}

.works-filter-list {
  display: flex;
  gap: 2.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.8rem;
}

.filter-btn-serif {
  font-family: var(--font-family-serif);
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  padding: 0.5rem 1.5rem;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: all 0.4s var(--transition-elegant);
  border: none;
  background: none;
  position: relative;
}

.filter-btn-serif.active, .filter-btn-serif:hover {
  color: var(--color-primary);
}

.filter-btn-serif::after {
  content: '';
  position: absolute;
  bottom: -9px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.4s var(--transition-elegant);
}

.filter-btn-serif.active::after {
  width: 100%;
}

.works-grid-clean {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
}

.work-card-serif {
  background-color: var(--color-white);
  transition: all 0.4s var(--transition-elegant);
  position: relative;
  will-change: transform;
}

.work-visual-box {
  border: 1px solid var(--color-border);
  padding: 10px;
  background-color: var(--color-white);
  overflow: hidden;
  position: relative;
  aspect-ratio: 4 / 3;
}

.work-card-serif img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-elegant);
}

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

.work-details {
  margin-top: 1.5rem;
  padding: 0 0.5rem;
}

.work-category-label {
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.15em;
  margin-bottom: 0.25rem;
  display: block;
}

.work-title-serif {
  font-family: var(--font-family-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 0.5rem;
}

.work-date-label {
  font-family: var(--font-family-en);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   9.5. Instagram Section
   ========================================================================== */
.instagram-sec {
  padding: 12rem 0;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.instagram-header {
  text-align: center;
  margin-bottom: 5rem;
}

.instagram-header .section-en {
  margin-bottom: 1.5rem;
}

.instagram-lead-desc {
  text-align: center;
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin: 0 auto;
  max-width: 600px;
}

.instagram-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 5rem;
}

.instagram-item {
  display: block;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  padding: 10px;
  background-color: var(--color-white);
  transition: all 0.4s var(--transition-elegant);
}

.instagram-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 15px 35px rgba(0, 105, 52, 0.05);
}

.instagram-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: #f5f8f6;
}

.instagram-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-elegant);
}

.instagram-item:hover .instagram-img-wrapper img {
  transform: scale(1.05);
}

.instagram-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 105, 52, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s var(--transition-elegant);
}

.instagram-item:hover .instagram-overlay {
  opacity: 1;
}

.instagram-icon-view {
  color: #ffffff;
  transform: scale(0.8);
  transition: transform 0.4s var(--transition-elegant);
}

.instagram-item:hover .instagram-icon-view {
  transform: scale(1);
}

.instagram-btn-wrap {
  text-align: center;
}

.btn-instagram {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 1.25rem 3.5rem;
  background-color: var(--color-text-dark);
  color: #ffffff !important;
  font-family: var(--font-family-serif);
  font-weight: 500;
  letter-spacing: 0.15em;
  cursor: pointer;
  border: 1px solid var(--color-text-dark);
  transition: all 0.4s var(--transition-elegant);
  text-decoration: none;
}

.btn-instagram:hover {
  background-color: #e1306c;
  border-color: #e1306c;
}

.instagram-btn-icon {
  stroke-width: 2px;
}

/* ==========================================================================
   10. News Section (Clean Paper-Feed Style)
   ========================================================================== */
.news-sec {
  padding: 12rem 0;
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.news-panel-clean {
}

.news-row-clean {
  display: grid;
  grid-template-columns: 180px 140px 1fr;
  padding: 2.5rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  transition: all 0.4s var(--transition-elegant);
}

.news-row-clean:hover {
  background-color: var(--color-white);
  border-bottom-color: var(--color-primary);
}

.news-date-text {
  font-family: var(--font-family-en);
  font-size: 1rem;
  color: var(--color-text-muted);
}

.news-badge-clean {
  font-size: 0.75rem;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  padding: 0.3rem 0.8rem;
  text-align: center;
  width: 100px;
  font-weight: 500;
}

.news-badge-clean.info {
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.news-title-text {
  font-size: 1.05rem;
  color: var(--color-text-dark);
}

/* ==========================================================================
   11. Recruit & Partnership (Clean Legal Spec Sheet)
   ========================================================================== */
.recruit-sec {
  padding: 12rem 0;
  background-color: var(--color-bg);
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.96) 30%, rgba(255, 255, 255, 0.85) 100%), url('../images/kasugai_view_03.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  border-bottom: 1px solid var(--color-border);
}

.recruit-grid-layout {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 8rem;
}

.recruit-left-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: 1.5rem;
}

.recruit-vertical-title {
  font-family: var(--font-family-serif);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 2rem;
  color: var(--color-text-dark);
}

.recruit-vertical-title span {
  color: var(--color-primary);
}

.recruit-paragraph {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 3rem;
}

.recruit-tabs-clean {
  display: flex;
  gap: 3rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 3.5rem;
}

.recruit-tab-btn-clean {
  padding: 1.2rem 0;
  font-weight: 500;
  font-size: 1.1rem;
  cursor: pointer;
  border: none;
  background: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  transition: all 0.4s;
}

.recruit-tab-btn-clean.active {
  border-bottom-color: var(--color-primary);
  color: var(--color-text-dark);
}

.recruit-tabs-content-wrap {
  display: grid;
  grid-template-columns: 1fr;
}

.tab-pane-content-clean {
  grid-area: 1 / 1 / 2 / 2;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--transition-elegant), visibility 0.4s;
  display: block;
}

.tab-pane-content-clean.active {
  opacity: 1;
  visibility: visible;
  display: block;
}

.specs-table-serif {
  width: 100%;
  border-collapse: collapse;
}

.specs-table-serif tr {
  border-bottom: 1px solid var(--color-border);
}

.specs-table-serif th {
  padding: 1.8rem 1rem;
  text-align: left;
  font-weight: 500;
  color: var(--color-primary);
  width: 30%;
  vertical-align: top;
}

.specs-table-serif td {
  padding: 1.8rem 1rem;
  color: var(--color-text-dark);
  font-size: 0.95rem;
  vertical-align: top;
}

/* ==========================================================================
   12. Contact Form (Clean Minimalist Fields)
   ========================================================================== */
.contact-sec {
  padding: 10rem 0;
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.contact-layout-box {
  max-width: 900px;
  margin: 0 auto;
}

.contact-lead-desc {
  text-align: center;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-muted);
  margin-bottom: 5rem;
}

.contact-form-serif,
.wpcf7-form {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 2.5rem 3rem !important;
}

/* 1. グリッド崩れを引き起こす余分なタグや非表示要素をグリッドアイテムから排除 */
.contact-form-serif > br,
.wpcf7-form > br,
.contact-form-serif > p,
.wpcf7-form > p,
.contact-form-serif > span:empty,
.wpcf7-form > span:empty,
.contact-form-serif > span[style*="display: none"],
.wpcf7-form > span[style*="display: none"],
.contact-form-serif > div[style*="display: none"],
.wpcf7-form > div[style*="display: none"] {
  display: none !important;
}

/* 2. 各入力項目コンテナ（div）の内部にある自動挿入タグ（br, p）の制御
   br は不要な隙間を作るため子孫要素も含めてすべて非表示にし、
   p は入力項目を内包するため display: contents でラッパーとしてのみ機能させる */
.contact-form-serif div br,
.wpcf7-form div br,
.contact-form-serif br,
.wpcf7-form br {
  display: none !important;
}

.contact-form-serif div > p,
.wpcf7-form div > p {
  display: contents !important;
}

/* 3. 各入力項目コンテナ（div）をフレックスで縦並びにして、不自然な改行スペースを完全に排除 */
.contact-form-serif > div:not(.form-checkbox-wrap-serif):not(.submit-wrap-serif),
.wpcf7-form > div:not(.form-checkbox-wrap-serif):not(.submit-wrap-serif) {
  display: flex !important;
  flex-direction: column !important;
  justify-content: flex-start !important;
  align-items: flex-start !important;
  width: 100% !important;
}

.form-full-width {
  grid-column: 1 / -1 !important;
}

.form-label-serif {
  display: flex;
  align-items: center;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--color-text-dark);
  letter-spacing: 0.05em;
}

.form-label-serif span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  background-color: rgba(0, 105, 52, 0.06);
  border: 1px solid rgba(0, 105, 52, 0.15);
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  margin-left: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1;
}

/* Contact Form 7 のラッパー要素調整 */
.wpcf7-form-control-wrap {
  display: block !important;
  width: 100%;
  margin-top: 0;
}

.input-serif {
  width: 100%;
  border: 1px solid var(--color-border);
  padding: 1.1rem 1.25rem;
  font-size: 0.95rem;
  background-color: var(--color-white);
  color: var(--color-text-dark);
  font-family: inherit;
  transition: all 0.3s var(--transition-elegant);
  box-shadow: none;
}

.input-serif::placeholder {
  color: #a3b5a9;
}

select.input-serif {
  height: 54px;
  padding-top: 0;
  padding-bottom: 0;
}

.input-serif:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 4px 12px rgba(0, 105, 52, 0.03);
}

.form-checkbox-wrap-serif {
  grid-column: 1 / -1 !important;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 2rem 0 1rem;
}

.checkbox-label-serif,
.form-checkbox-wrap-serif label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--color-text-muted);
  transition: color 0.3s ease;
}

.checkbox-label-serif:hover,
.form-checkbox-wrap-serif label:hover {
  color: var(--color-text-dark);
}

.checkbox-label-serif input,
.form-checkbox-wrap-serif input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--color-primary);
  border: 1px solid var(--color-border);
  cursor: pointer;
}

.submit-wrap-serif {
  grid-column: 1 / -1 !important;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
  position: relative;
}

.submit-wrap-serif .ajax-loader {
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
}

/* ==========================================================================
   Contact Form 7 送信結果レスポンス出力ボックス
   CF7プラグインのCSSセレクタ(.wpcf7 .wpcf7-response-output)より
   詳細度を高くして確実に上書きする
   ========================================================================== */
.wpcf7 .wpcf7-response-output,
.wpcf7-form .wpcf7-response-output,
.wpcf7-response-output {
  display: none !important;
  border: 0 !important;
  padding: 0 !important;
  margin: 0 !important;
  height: 0 !important;
  overflow: hidden !important;
}

/* 送信完了・エラー等のステータスクラス付与時のみ表示 */
.wpcf7-form.sent .wpcf7-response-output,
.wpcf7-form.invalid .wpcf7-response-output,
.wpcf7-form.spam .wpcf7-response-output,
.wpcf7-form.failed .wpcf7-response-output {
  display: block !important;
  height: auto !important;
  overflow: visible !important;
  grid-column: 1 / -1 !important;
  margin: 2rem auto 0 !important;
  padding: 1.1rem 2rem !important;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 500;
  max-width: 500px;
  width: 100% !important;
  box-sizing: border-box;
}

/* 送信成功時 */
.wpcf7-form.sent .wpcf7-response-output {
  border: 1px solid var(--color-primary) !important;
  background-color: rgba(0, 105, 52, 0.04) !important;
  color: var(--color-primary) !important;
}

/* エラー時 */
.wpcf7-form.invalid .wpcf7-response-output,
.wpcf7-form.spam .wpcf7-response-output,
.wpcf7-form.failed .wpcf7-response-output {
  border: 1px solid #e63946 !important;
  background-color: rgba(230, 57, 70, 0.04) !important;
  color: #e63946 !important;
}

/* ==========================================================================
   13. Company Profile & Monochromatic Map
   ========================================================================== */
.company-sec {
  padding: 12rem 0;
  background-color: var(--color-bg);
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 35%, rgba(255, 255, 255, 0.9) 100%), url('../images/kasugai_view_01.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-text-dark);
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.company-layout-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 8rem;
}

.company-table-serif {
  width: 100%;
  border-collapse: collapse;
}

.company-table-serif tr {
  border-bottom: 1px solid var(--color-border);
}

.company-table-serif th {
  padding: 1.6rem 0;
  text-align: left;
  font-weight: 500;
  color: var(--color-primary); /* 明るい背景に合うように primary に変更 */
  width: 35%;
  vertical-align: top;
}

.company-table-serif td {
  padding: 1.6rem 0;
  color: var(--color-text-dark);
  font-size: 0.95rem;
  vertical-align: top;
}

.map-box-serif {
  border: 1px solid var(--color-border);
  height: 100%;
  min-height: 480px;
}

.map-box-serif iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(100%) contrast(110%); /* 暗い反転（invert）を外す */
}

/* ==========================================================================
   14. Footer
   ========================================================================== */
.footer {
  background-color: var(--color-bg-light); /* 明るいセージグレーに変更 */
  color: var(--color-text-dark);
  padding: 8rem 0 3rem;
  border-top: 2px solid var(--color-accent); /* ゴールドのアクセントライン */
}

/* Footer Info Box */
.footer-info-address {
  margin-top: 1.5rem;
  margin-bottom: 2rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.footer-address-text {
  margin-bottom: 0.8rem;
}

.footer-phone-text, .footer-mobile-text {
  font-family: var(--font-family-serif);
  font-weight: 500;
}

/* Page Top Button (Strictly Sharp) */
.page-top-btn {
  position: fixed;
  right: 30px;
  bottom: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--color-primary);
  border: 1px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff !important;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s var(--transition-elegant);
  cursor: pointer;
}

.page-top-btn:hover {
  background-color: #ffffff;
  color: var(--color-primary) !important;
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.arrow-up {
  width: 10px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(-45deg);
  margin-top: 4px;
  transition: transform 0.4s;
}

.page-top-btn:hover .arrow-up {
  transform: rotate(-45deg) translate(-2px, -2px);
}

.page-top-btn.show {
  opacity: 1;
  visibility: visible;
}

.footer-top-layout {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 5rem;
}

.footer-brand-box {
  max-width: 420px;
}

.footer-logo-img {
  height: 48px;
  margin-bottom: 2rem;
  /* filter: invert(1) brightness(1.2); 明るい背景なので反転を外す */
}

.footer-brand-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.sns-square-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: all 0.4s var(--transition-elegant);
}

.sns-square-link:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.footer-nav-title {
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: 2rem;
  color: var(--color-text-dark);
  border-left: 2px solid var(--color-accent);
  padding-left: 1rem;
}

.footer-nav-links-list {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.footer-nav-anchor {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  transition: all 0.3s;
}

.footer-nav-anchor:hover {
  color: var(--color-primary);
}

.footer-bottom-layout {
  border-top: 1px solid var(--color-border);
  padding-top: 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   15. Responsive Adaptations
   ========================================================================== */
@media (max-width: 1400px) {
  .header-container {
    grid-template-columns: 200px 1fr 150px; /* メディアクエリでも右側を固定幅に同期 */
    padding: 0 2rem;
  }
  .header-top-container {
    padding: 0 2rem;
  }
  .container-wide {
    padding: 0 2rem;
  }
  .hero {
    padding: 0 2rem;
  }
  .nav-list {
    gap: 1.25rem;
  }
  .nav-link {
    font-size: 0.85rem;
  }
  .header-cta {
    gap: 1.25rem;
  }
  .header-phone-box {
    padding-left: 1rem;
  }
}

@media (max-width: 1200px) {
  .header-top-bar {
    display: none; /* スマホ・タブレット幅ではトップバーを非表示 */
  }
  .header-cta {
    display: none;
  }
  .menu-trigger {
    display: flex;
  }
  .header-container {
    display: flex; /* gridからflexに変更し、左右端に完全に整列させる */
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    height: 70px;
  }
  .container-wide {
    padding: 0 2rem;
  }
  /* セクション上下パディングのスリム化（間延び防止） */
  .concept, .services, .works, .news-sec, .recruit-sec, .contact-sec, .company-sec {
    padding: 7rem 0;
  }
  .subpage-main {
    padding-top: 120px;
    padding-bottom: 80px;
  }
  .subpage-card {
    padding: 3rem 2rem;
  }
  .works-detail-content {
    padding: 2.5rem 1.5rem;
  }
  .works-detail-sidebar {
    padding: 2rem 1.5rem;
    position: static;
  }
  .recruit-sec {
    background-attachment: scroll;
  }
  /* 装飾用の巨大背景文字を非表示化（可読性と横スクロール防止） */
  .floating-bg-serif {
    display: none;
  }
  .hero {
    height: auto;
    min-height: auto;
  }
  .hero-inner {
    padding: 0 2rem;
    grid-template-columns: 1fr;
    height: auto;
  }
  .nav {
    position: fixed;
    top: 70px; /* height 70px に同期 */
    left: 100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-bg);
    transition: all 0.4s var(--transition-elegant);
    z-index: 999;
    padding: 2.5rem 2rem;
    overflow-y: auto; /* スクロール可能にする */
  }
  .nav.active {
    left: 0;
  }
  .nav-sp-container {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    gap: 3rem;
  }
  .nav-sp-brand {
    display: block;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1.5rem;
  }
  .nav-sp-logo {
    height: 40px;
  }
  .nav-sp-footer {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    border-top: 1px solid var(--color-border);
    padding-top: 2rem;
    margin-top: auto; /* 最下部に押し下げる */
  }
  .nav-sp-address {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    text-align: left;
  }
  .nav-sp-tel {
    font-family: var(--font-family-serif);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
    text-align: left;
  }
  .nav-sp-tel a {
    color: inherit;
    text-decoration: none;
  }
  .nav-sp-cta {
    margin: 0.5rem 0;
    text-align: left;
  }
  .nav-sp-contact-btn {
    width: 100% !important;
  }
  .nav-sp-policy {
    text-align: center;
  }
  .nav-sp-policy-link {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-decoration: underline;
  }
  .nav-sp-policy-link:hover {
    color: var(--color-primary);
  }
  .nav-list {
    flex-direction: column;
    gap: 1.5rem;
  }
  .nav-link {
    font-size: 1.15rem;
  }
  .hero-left {
    padding: 10rem 2rem 4rem 0;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-right: none;
  }
  .hero-slogan-vertical {
    height: auto;
    margin-bottom: 3.5rem;
  }
  .vertical-text-container {
    writing-mode: horizontal-tb;
    letter-spacing: 0.15em;
    line-height: 1.4;
  }
  .vertical-large-headline {
    font-size: 2.8rem;
    line-height: 1.4;
  }
  .vertical-large-headline span {
    border-right: none;
    padding-right: 0;
  }
  .hero-desc {
    border-left: none;
    padding-left: 0;
    text-align: center;
  }
  .hero-meta-block {
    align-items: center;
    max-width: 100%;
  }
  .pc-only {
    display: none;
  }
  .hero-right {
    height: 450px;
  }
  .concept-layout {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .concept-img-frame {
    height: 450px;
  }
  .services-layout-grid {
    grid-template-columns: 1fr;
  }
  .works-grid-clean {
    grid-template-columns: repeat(2, 1fr);
  }
  .recruit-grid-layout {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .company-layout-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
}

@media (max-width: 768px) {
  .document-grid {
    display: none;
  }
  .header-container {
    padding: 0 1.5rem;
  }
  .header-top-container {
    padding: 0 1.5rem;
  }
  .container-wide {
    padding: 0 1.5rem;
  }
  /* モバイル向けにさらにセクションパディングを圧縮 */
  .concept, .services, .works, .instagram-sec, .news-sec, .recruit-sec, .contact-sec, .company-sec {
    padding: 4rem 0;
  }
  .subpage-main {
    padding-top: 90px;
    padding-bottom: 50px;
  }
  .subpage-card {
    padding: 2rem 1rem;
  }
  .works-detail-content {
    padding: 1.5rem 1rem;
  }
  .works-detail-sidebar {
    padding: 1.5rem 1rem;
  }
  .section-header {
    margin-bottom: 3.5rem;
  }
  .section-ja {
    font-size: 1.8rem;
  }
  .vertical-large-headline {
    font-size: 2.2rem;
  }
  .concept-headline {
    font-size: 1.6rem;
    margin-bottom: 2rem;
  }
  .concept-profile {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
  .profile-license {
    padding-left: 1.5rem;
  }
  .recruit-vertical-title {
    font-size: 1.8rem;
  }
  .hero-inner {
    padding: 0 1.5rem;
  }
  .hero-left {
    padding: 8rem 0 3rem 0;
  }

  /* --- Services Section --- */
  .service-card-minimal {
    padding: 2.5rem 1.5rem;
    min-height: auto;
  }
  .service-num {
    margin-bottom: 1rem;
    font-size: 1.6rem;
  }
  .service-title {
    margin-bottom: 1rem;
    font-size: 1.4rem;
  }
  .service-desc {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.6;
  }

  /* --- Works Filter Redesign for Mobile --- */
  .works-filter-wrap {
    justify-content: center;
    margin-bottom: 3rem;
    width: 100%;
    padding: 0 0.5rem;
    box-sizing: border-box;
  }
  .works-filter-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    width: 100%;
    gap: 0.75rem;
    padding-bottom: 0;
    border-bottom: none;
  }
  .filter-btn-serif {
    flex: none;
    text-align: center;
    font-size: 0.85rem;
    padding: 0.75rem 0.5rem;
    white-space: nowrap;
    border: 1px solid var(--color-border);
    border-radius: 0;
    background-color: var(--color-bg-light);
    color: var(--color-text-muted);
    transition: all 0.3s ease;
  }
  .filter-btn-serif::after {
    display: none;
  }
  .filter-btn-serif.active, .filter-btn-serif:hover {
    color: #ffffff !important;
    background-color: var(--color-primary);
    border-color: var(--color-primary);
  }

  .works-grid-clean {
    grid-template-columns: 1fr;
  }
  
  /* --- Instagram Section --- */
  .instagram-header {
    margin-bottom: 3rem;
  }
  .instagram-lead-desc {
    font-size: 0.95rem;
    padding: 0 1rem;
  }
  .instagram-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 3.5rem;
  }
  .btn-instagram {
    padding: 1rem 2rem;
    font-size: 0.85rem;
    width: 100%;
    max-width: 280px;
    box-sizing: border-box;
  }

  /* --- News Section --- */
  .news-row-clean {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.5rem 0.5rem;
  }

  /* --- Recruit Section --- */
  .recruit-tabs-clean {
    gap: 1.5rem;
    margin-bottom: 2.5rem;
  }
  .recruit-tab-btn-clean {
    padding: 0.8rem 0;
    font-size: 1rem;
  }
  .specs-table-serif th,
  .specs-table-serif td {
    display: block;
    width: 100% !important;
    padding: 0.8rem 0;
    box-sizing: border-box;
  }
  .specs-table-serif th {
    padding-bottom: 0.2rem;
    font-weight: 700;
  }
  .specs-table-serif td {
    padding-top: 0.2rem;
    padding-bottom: 1rem;
  }

  /* --- Contact Section --- */
  .contact-lead-desc {
    margin-bottom: 3rem;
  }
  .contact-form-serif,
  .wpcf7-form {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }
  .form-full-width {
    grid-column: span 1 !important;
  }
  .form-checkbox-wrap-serif {
    grid-column: span 1 !important;
  }
  .submit-wrap-serif {
    grid-column: span 1 !important;
  }
  .input-serif {
    padding: 1rem;
    font-size: 0.9rem;
  }
  select.input-serif {
    height: 48px;
  }
  .btn-clean {
    padding: 1rem 2rem;
    font-size: 0.9rem;
    gap: 1rem;
    width: 100%;
    max-width: 300px;
    box-sizing: border-box;
  }
  .btn-clean::after {
    width: 15px;
  }
  .btn-clean:hover::after {
    width: 20px;
  }

  /* --- Company Section --- */
  .company-table-serif th,
  .company-table-serif td {
    display: block;
    width: 100% !important;
    padding: 0.8rem 0;
    box-sizing: border-box;
  }
  .company-table-serif th {
    padding-bottom: 0.2rem;
    font-weight: 700;
  }
  .company-table-serif td {
    padding-top: 0.2rem;
    padding-bottom: 1rem;
  }
  .map-box-serif {
    min-height: 300px;
  }

  /* --- Footer --- */
  .footer-top-layout {
    flex-direction: column;
    gap: 4rem;
  }
  .footer-nav-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    width: 100%;
  }
}

/* ==========================================================================
   12. Single Works Layout (Responsive 2-Column Grid)
   ========================================================================== */
.works-detail-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .works-detail-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

/* ==========================================================================
   13. Back Link (Elegant Serif Line Animation)
   ========================================================================== */
.back-link-serif {
  font-family: var(--font-family-serif);
  font-size: 0.95rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  position: relative;
  padding-bottom: 4px;
  transition: color 0.3s var(--transition-elegant);
}

.back-link-serif::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-primary);
  transition: width 0.3s var(--transition-elegant);
}

.back-link-serif:hover {
  color: var(--color-primary-dark);
}

.back-link-serif:hover::after {
  width: 100%;
}

/* ==========================================================================
   14. WordPress Default Blocks styling inside .entry-content
   ========================================================================== */
.entry-content > * {
  margin-bottom: 1.5rem;
}

.entry-content p {
  line-height: 2.0;
  color: var(--color-text-dark);
  margin-bottom: 1.5rem;
}

.entry-content h2 {
  font-family: var(--font-family-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-dark);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 0.75rem;
  margin-top: 4rem;
  margin-bottom: 2rem;
}

.entry-content h3 {
  font-family: var(--font-family-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.5rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.entry-content h4 {
  font-family: var(--font-family-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-top: 2rem;
  margin-bottom: 1.25rem;
}

.entry-content ul {
  list-style: disc !important;
  padding-left: 1.5rem !important;
  margin-bottom: 1.5rem;
}

.entry-content ol {
  list-style: decimal !important;
  padding-left: 1.5rem !important;
  margin-bottom: 1.5rem;
}

.entry-content li {
  margin-bottom: 0.5rem;
  line-height: 1.8;
}

.entry-content table,
.entry-content .wp-block-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  margin-bottom: 2rem;
  border: 1px solid var(--color-border);
}

.entry-content table th,
.entry-content .wp-block-table th {
  background-color: var(--color-bg-light);
  font-weight: 600;
  text-align: left;
  padding: 1rem;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-dark);
}

.entry-content table td,
.entry-content .wp-block-table td {
  padding: 1rem;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text-dark);
  line-height: 1.6;
}

/* 強調表示 */
.entry-content strong {
  font-weight: 700;
  color: var(--color-text-dark);
}

/* 制定日などの右寄せ */
.entry-content .alignright,
.entry-content p.has-text-align-right {
  text-align: right;
  margin-top: 3rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   15. Reveal on Scroll Animations (Rich Aesthetics)
   ========================================================================== */
.reveal-on-scroll {
  opacity: 0;
  will-change: opacity, transform;
  transition-property: opacity, transform;
  transition-duration: 1.4s;
  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1); /* 超滑らかなイージング */
}

/* フェードアップ */
.reveal-fade-up {
  transform: translate3d(0, 45px, 0);
}

/* フェードイン */
.reveal-fade-in {
  transform: scale(0.97);
}

/* フェードレフト */
.reveal-fade-left {
  transform: translate3d(-40px, 0, 0);
}

/* フェードライト */
.reveal-fade-right {
  transform: translate3d(40px, 0, 0);
}

/* ズームアウト */
.reveal-zoom-out {
  transform: scale(1.08);
}

/* 表示完了状態 */
.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

/* パララックス用要素の滑らかな追従 */
[data-parallax-speed],
[data-parallax-horizontal-speed] {
  transition: transform 0.25s cubic-bezier(0.1, 0.8, 0.2, 1) !important;
  will-change: transform;
}

/* ==========================================================================
   16. Subpages Common Layout (Base Styles)
   ========================================================================== */
.subpage-main {
  padding-top: 180px;
  padding-bottom: 120px;
  background-color: var(--color-bg-light);
}

.subpage-main.subpage-main-bg {
  background-color: var(--color-bg);
}

.subpage-card {
  background-color: var(--color-white);
  padding: 4rem 3rem;
  border: 1px solid var(--color-border);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.02);
}

.works-detail-content {
  background-color: var(--color-white);
  padding: 3rem 2rem;
  border: 1px solid var(--color-border);
  line-height: 2.0;
  font-size: 1.05rem;
  color: var(--color-text-dark);
  font-family: var(--font-family-sans);
  box-shadow: 0 15px 40px rgba(0,0,0,0.02);
}

.works-detail-sidebar {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 2.5rem 2rem;
  position: sticky;
  top: 120px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.02);
}