/* ================================================
   株式会社後藤建設 - WordPress 追加CSS
   prefix: gk-
   配色: ネイビー #0d1b2a / オレンジ #e85d04
================================================ */

@import url('https://fonts.googleapis.com/css2?family=Yuji+Syuku&display=swap');

/* === ベース === */
.gk-section {
  width: 100%;
  padding: 80px 0;
  position: relative;
}
.gk-section-sm { padding: 50px 0; }
.gk-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.gk-container-wide {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}
* { box-sizing: border-box; }

/* === セクションタイトル === */
.gk-section-title {
  font-size: 2rem;
  font-weight: 900;
  color: #0d1b2a;
  margin: 0 0 16px;
  line-height: 1.3;
}
.gk-section-title .en {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: #e85d04;
  letter-spacing: 0.25em;
  margin-bottom: 10px;
}
.gk-section-title-wrap {
  text-align: center;
  margin-bottom: 56px;
}
.gk-accent-line {
  display: block;
  width: 48px;
  height: 4px;
  background: #e85d04;
  margin: 14px auto 0;
}
.gk-section-lead {
  text-align: center;
  color: #555;
  font-size: 1rem;
  line-height: 1.9;
  margin-top: 20px;
}

/* === ボタン === */
.gk-btn-primary {
  display: inline-block;
  background: #e85d04;
  color: #fff !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 36px;
  border-radius: 2px;
  text-decoration: none !important;
  letter-spacing: 0.08em;
  transition: background 0.25s, transform 0.2s;
  border: 2px solid #e85d04;
}
.gk-btn-primary:hover {
  background: #c84d00;
  border-color: #c84d00;
  transform: translateY(-2px);
}
.gk-btn-outline {
  display: inline-block;
  background: transparent;
  color: #fff !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 36px;
  border-radius: 2px;
  text-decoration: none !important;
  letter-spacing: 0.08em;
  border: 2px solid rgba(255,255,255,0.8);
  transition: background 0.25s, transform 0.2s;
}
.gk-btn-outline:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}
.gk-btn-outline-dark {
  display: inline-block;
  background: transparent;
  color: #0d1b2a !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 32px;
  border-radius: 2px;
  text-decoration: none !important;
  letter-spacing: 0.08em;
  border: 2px solid #0d1b2a;
  transition: all 0.25s;
}
.gk-btn-outline-dark:hover {
  background: #0d1b2a;
  color: #fff !important;
}
.gk-btn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #e85d04 !important;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none !important;
  letter-spacing: 0.05em;
  transition: gap 0.2s;
}
.gk-btn-more::after { content: '→'; }
.gk-btn-more:hover { gap: 14px; }

/* === ヒーロー（TOP） === */
.gk-hero {
  background: linear-gradient(135deg, #0d1b2a 0%, #1e3a5f 45%, #0d1b2a 100%);
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  text-align: center;
  color: #fff;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
  margin-bottom: -4px;
}
.gk-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 40px,
      rgba(232,93,4,0.04) 40px,
      rgba(232,93,4,0.04) 41px
    );
}
.gk-hero-content {
  position: relative;
  z-index: 2;
  padding: 0 20px;
}
.gk-hero-badge {
  display: inline-block;
  background: #e85d04;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 6px 20px;
  margin-bottom: 28px;
}
.gk-hero-title {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 24px;
  text-shadow: 2px 4px 20px rgba(0,0,0,0.4);
  letter-spacing: 0.04em;
}
.gk-hero-title .accent { color: #e85d04; }
.gk-hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
  line-height: 1.9;
  letter-spacing: 0.05em;
}
.gk-hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.gk-hero-scroll {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.6);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
}
.gk-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: gkScrollDown 1.8s ease-in-out infinite;
}
@keyframes gkScrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* === ABOUT US v2（中原組スタイル） === */
.gk-about-v2 { background: #f5f5f5; overflow: hidden; }
.gk-about-v2-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 600px;
  max-width: 1300px;
  margin: 0 auto;
}

/* 左：テキスト＋地図 */
.gk-about-v2-left {
  padding: 80px 56px 80px 48px;
  position: relative;
}
.gk-about-v2-watermark {
  position: absolute;
  top: 40px;
  left: 24px;
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 900;
  color: rgba(13, 27, 42, 0.06);
  letter-spacing: 0.02em;
  pointer-events: none;
  user-select: none;
  line-height: 1;
  white-space: nowrap;
}

/* 宮崎県地図 */
.gk-miyazaki-map {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
}
.gk-map-img {
  width: 200px;
  height: auto;
  display: block;
  mix-blend-mode: multiply; /* 白背景を透明に */
}
.gk-map-caption {
  font-size: 0.78rem;
  color: #888;
  margin: 0;
  letter-spacing: 0.05em;
}

/* 右：写真 */
.gk-about-v2-right {
  position: relative;
  overflow: hidden;
}
.gk-about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* === スクロールアニメーション（左→右シュッと表示） === */
.gk-slide-in-right {
  opacity: 0;
  transform: translateX(-80px);
  transition: opacity 1s ease, transform 1s ease;
}
.gk-slide-in-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* レスポンシブ */
@media (max-width: 900px) {
  .gk-about-v2-inner { grid-template-columns: 1fr; }
  .gk-about-v2-right { height: 320px; }
  .gk-about-v2-left { padding: 56px 24px 40px; }
  .gk-slide-in-right {
    transform: translateX(-60px);
  }
}

/* === 数字ハイライト === */
.gk-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  background: #e85d04;
  text-align: center;
}
.gk-stat-item {
  padding: 36px 20px;
  border-right: 1px solid rgba(255,255,255,0.25);
}
.gk-stat-item:last-child { border-right: none; }
.gk-stat-num {
  font-size: 2.8rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.02em;
}
.gk-stat-num span { font-size: 1.2rem; }
.gk-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.9);
  margin-top: 8px;
  letter-spacing: 0.08em;
}

/* === 会社紹介（TOP） === */
.gk-about-top {
  background: #f5f5f5;
}
.gk-about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.gk-about-img {
  background: linear-gradient(160deg, #1e3a5f 0%, #0d1b2a 100%);
  height: 380px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  position: relative;
  overflow: hidden;
}
.gk-about-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 6px;
  background: #e85d04;
}
.gk-about-tag {
  display: inline-block;
  background: #e85d04;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 5px 14px;
  margin-bottom: 16px;
}
.gk-about-title {
  font-size: 1.8rem;
  font-weight: 900;
  color: #0d1b2a;
  line-height: 1.4;
  margin: 0 0 20px;
}
.gk-about-body {
  color: #555;
  line-height: 2;
  font-size: 0.95rem;
  margin-bottom: 28px;
}

/* === サービスカード === */
.gk-services {
  background: #fff;
}
.gk-service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.gk-service-card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  text-decoration: none !important;
  display: block;
  color: inherit !important;
}
.gk-service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}
.gk-service-card-img {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.2rem;
  position: relative;
}
.gk-service-card-img.civil { background: linear-gradient(145deg, #2a4a6e, #0d1b2a); }
.gk-service-card-img.construct { background: linear-gradient(145deg, #3a2a0d, #1a0d00); }
.gk-service-card-img.house { background: linear-gradient(145deg, #1a3a2a, #0d1a12); }
.gk-service-card-img.interior { background: linear-gradient(145deg, #3a1a2a, #1a0d14); }
.gk-service-card-body {
  padding: 22px 20px 24px;
  border-top: 3px solid #e85d04;
}
.gk-service-card-en {
  font-size: 0.68rem;
  color: #e85d04;
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: 6px;
}
.gk-service-card-title {
  font-size: 1.1rem;
  font-weight: 900;
  color: #0d1b2a;
  margin-bottom: 10px;
}
.gk-service-card-desc {
  font-size: 0.85rem;
  color: #666;
  line-height: 1.8;
}

/* === 強み === */
.gk-strength {
  background: #0d1b2a;
  color: #fff;
  overflow: hidden;
}
/* 旧グリッド（service/recruit等で流用）は残す */
.gk-strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.gk-strength-item {
  text-align: center;
  padding: 40px 24px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  border-top: 3px solid #e85d04;
  transition: background 0.25s;
}
.gk-strength-item:hover { background: rgba(255,255,255,0.09); }
.gk-strength-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: block;
}
.gk-strength-num {
  font-size: 0.72rem;
  color: #e85d04;
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  display: block;
}
.gk-strength-title {
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: #fff;
}
.gk-strength-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.9;
}
/* ===== 強み：写真スタガーカード（HOME用） ===== */
.gk-strength-section-title {
  font-size: 2.6rem !important;
}
.gk-strength-section-title .en {
  font-size: 0.88rem !important;
  letter-spacing: 0.25em;
}
.gk-strength-cards {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding-bottom: 120px;
}
.gk-strength-card {
  flex: 1;
  border-radius: 6px;
  overflow: hidden;
  background: #132435;
  transition: transform 0.3s;
}
.gk-strength-card--1 { margin-top: 0; }
.gk-strength-card--2 { margin-top: 64px; }
.gk-strength-card--3 { margin-top: 128px; }
.gk-strength-card:hover { transform: translateY(-8px); }
.gk-strength-card-img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}
.gk-strength-card-body {
  padding: 36px 32px;
  border-top: 4px solid #e85d04;
}
.gk-strength-card-num {
  font-size: 0.75rem;
  color: #e85d04;
  font-weight: 700;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  display: block;
}
.gk-strength-card-title {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.4;
}
.gk-strength-card-desc {
  font-size: 0.92rem;
  color: rgba(255,255,255,0.72);
  line-height: 2.0;
}
@media (max-width: 768px) {
  .gk-strength-cards {
    flex-direction: column;
    gap: 20px;
    padding-bottom: 0;
  }
  .gk-strength-card--1,
  .gk-strength-card--2,
  .gk-strength-card--3 { margin-top: 0; }
}

/* === 施工実績（TOP）ショーケース === */
.gk-works-top {
  background: #0d1b2a;
}
.gk-works-showcase {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  grid-template-rows: auto;
  gap: 6px;
  margin-bottom: 48px;
}
.gk-works-sub-stack {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.gk-works-panel {
  position: relative;
  overflow: hidden;
  border-radius: 3px;
  cursor: default;
}
.gk-works-panel--feat {
  height: 520px;
}
.gk-works-panel--sub {
  height: 257px;
}
.gk-works-panel-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}
.gk-works-panel:hover .gk-works-panel-bg {
  transform: scale(1.05);
}
.gk-works-panel-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,15,28,0.85) 0%, rgba(5,15,28,0.25) 55%, transparent 100%);
}
.gk-works-panel-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px 30px;
  z-index: 1;
}
.gk-works-panel-tag {
  display: inline-block;
  background: #e85d04;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 10px;
}
.gk-works-panel-title {
  font-size: 1.25rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 6px;
}
.gk-works-panel--sub .gk-works-panel-title {
  font-size: 1rem;
}
.gk-works-panel-meta {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
}
.gk-works-top {
  padding-top: 0;
}
.gk-works-top .gk-section-title {
  color: #fff;
  font-size: 2.6rem;
}
.gk-works-top .gk-section-title .en {
  color: #e85d04;
  font-size: 0.88rem;
  letter-spacing: 0.25em;
}
.gk-works-top .gk-btn-outline-dark {
  color: #fff !important;
  border-color: rgba(255,255,255,0.5);
}
.gk-works-top .gk-btn-outline-dark:hover {
  background: rgba(255,255,255,0.12);
  color: #fff !important;
  border-color: #fff;
}
@media (max-width: 768px) {
  .gk-works-showcase {
    grid-template-columns: 1fr;
  }
  .gk-works-panel--feat { height: 320px; }
  .gk-works-panel--sub  { height: 220px; }
}

/* === 施工実績（TOP）旧グリッド ===（works.htmlで使用） */
.gk-works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.gk-work-card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  transition: transform 0.3s;
}
.gk-work-card:hover { transform: translateY(-6px); }
.gk-work-img {
  height: 200px;
  background: linear-gradient(160deg, #1e3a5f, #0d1b2a);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  position: relative;
  overflow: hidden;
}
.gk-work-img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(0,0,0,0.5));
}
.gk-work-img-icon {
  font-size: 3rem;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -60%);
  opacity: 0.4;
}
.gk-work-tag {
  position: relative;
  z-index: 1;
  background: #e85d04;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 2px;
}
.gk-work-body { padding: 20px; }
.gk-work-title {
  font-size: 1rem;
  font-weight: 900;
  color: #0d1b2a;
  margin-bottom: 8px;
}
.gk-work-meta {
  font-size: 0.8rem;
  color: #888;
}
.gk-works-center { text-align: center; }

/* === 採用バナー === */
.gk-recruit-banner {
  background:
    linear-gradient(135deg, rgba(232,93,4,0.88) 0%, rgba(200,70,0,0.82) 60%, rgba(150,45,0,0.70) 100%),
    url('images/recruit-voice-bg.jpg') center / cover no-repeat;
  padding: 70px 0;
  text-align: center;
  color: #fff;
  clip-path: polygon(0 8%, 100% 0, 100% 92%, 0 100%);
  margin: -2px 0;
  padding: 100px 0;
}
.gk-recruit-banner h2 {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.gk-recruit-banner p {
  font-size: 1rem;
  margin-bottom: 32px;
  opacity: 0.95;
  line-height: 1.9;
}
.gk-btn-white {
  display: inline-block;
  background: #fff;
  color: #e85d04 !important;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 42px;
  border-radius: 2px;
  text-decoration: none !important;
  letter-spacing: 0.08em;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.gk-btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
}

/* === お知らせ === */
.gk-news { background: #fff; }
.gk-news-list { list-style: none; margin: 0 0 40px; padding: 0; }
.gk-news-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid #eee;
  text-decoration: none !important;
  color: #333 !important;
  transition: color 0.2s;
}
.gk-news-item:hover { color: #e85d04 !important; }
.gk-news-date { font-size: 0.85rem; color: #888; min-width: 90px; }
.gk-news-cat {
  font-size: 0.7rem;
  font-weight: 700;
  background: #0d1b2a;
  color: #fff;
  padding: 3px 10px;
  border-radius: 2px;
  min-width: 56px;
  text-align: center;
}
.gk-news-title { font-size: 0.9rem; line-height: 1.6; }
.gk-news-center { text-align: center; }

/* === ページヒーロー（下層ページ） === */
.gk-page-hero {
  background: linear-gradient(135deg, #0d1b2a 0%, #1e3a5f 100%);
  padding: 90px 0 80px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
  margin-bottom: 0;
}
.gk-page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent, transparent 40px,
    rgba(232,93,4,0.04) 40px, rgba(232,93,4,0.04) 41px
  );
}
.gk-page-hero-content { position: relative; z-index: 1; }
.gk-page-hero-en {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: #e85d04;
  margin-bottom: 14px;
  display: block;
}
.gk-page-hero-title {
  font-size: 2.6rem;
  font-weight: 900;
  color: #fff;
  margin: 0;
  letter-spacing: 0.04em;
}
.gk-page-hero-desc {
  margin-top: 16px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.9;
}

/* === パンくず === */
.gk-breadcrumb {
  background: #f5f5f5;
  padding: 12px 0;
  font-size: 0.8rem;
  color: #888;
}
.gk-breadcrumb a { color: #888; text-decoration: none; }
.gk-breadcrumb a:hover { color: #e85d04; }
.gk-breadcrumb span { margin: 0 8px; }

/* === 会社概要ページ === */
.gk-president {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 56px;
  align-items: start;
}
.gk-president-photo {
  background: linear-gradient(160deg, #1e3a5f, #0d1b2a);
  height: 360px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  border-bottom: 4px solid #e85d04;
}
.gk-president-name {
  font-size: 0.8rem;
  color: #888;
  margin-top: 10px;
  text-align: center;
}
.gk-message-title {
  font-size: 1.5rem;
  font-weight: 900;
  color: #0d1b2a;
  margin-bottom: 20px;
  line-height: 1.5;
}
.gk-message-body {
  font-size: 0.92rem;
  color: #555;
  line-height: 2.1;
}
.gk-message-sign {
  margin-top: 28px;
  font-size: 0.85rem;
  color: #333;
}
.gk-message-sign strong { font-size: 1.1rem; display: block; margin-top: 4px; }

/* 理念 */
.gk-philosophy { background: #0d1b2a; }
.gk-philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.gk-philosophy-item {
  text-align: center;
  padding: 40px 24px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  border-top: 3px solid #e85d04;
}
.gk-philosophy-label {
  font-size: 0.72rem;
  color: #e85d04;
  letter-spacing: 0.2em;
  font-weight: 700;
  margin-bottom: 14px;
  display: block;
}
.gk-philosophy-text {
  font-size: 1.2rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.5;
}
.gk-philosophy-desc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.9;
}

/* 会社情報テーブル */
.gk-info-table {
  width: 100%;
  border-collapse: collapse;
}
.gk-info-table th,
.gk-info-table td {
  padding: 18px 24px;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
  line-height: 1.7;
  vertical-align: top;
  text-align: left;
}
.gk-info-table th {
  width: 200px;
  background: #f5f5f5;
  font-weight: 700;
  color: #0d1b2a;
}
.gk-info-table tr:first-child th,
.gk-info-table tr:first-child td { border-top: 2px solid #0d1b2a; }

/* 沿革 */
.gk-history { background: #f5f5f5; }
.gk-history-list { list-style: none; margin: 0; padding: 0; max-width: 700px; margin: 0 auto; }
.gk-history-item {
  display: flex;
  gap: 28px;
  padding: 20px 0;
  border-bottom: 1px solid #ddd;
  align-items: baseline;
}
.gk-history-year {
  font-size: 1rem;
  font-weight: 900;
  color: #e85d04;
  min-width: 80px;
}
.gk-history-text {
  font-size: 0.9rem;
  color: #444;
  line-height: 1.8;
}

/* アクセス */
.gk-access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.gk-map-placeholder {
  background: #dde5ee;
  height: 300px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #7a9bb5;
  border: 2px dashed #7a9bb5;
}
.gk-access-info dt {
  font-weight: 700;
  color: #0d1b2a;
  font-size: 0.85rem;
  margin-top: 20px;
  margin-bottom: 4px;
}
.gk-access-info dt:first-child { margin-top: 0; }
.gk-access-info dd { color: #555; font-size: 0.9rem; margin: 0; line-height: 1.8; }

/* === 事業内容ページ === */
.gk-service-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 64px 0;
  border-bottom: 1px solid #eee;
}
.gk-service-section:last-child { border-bottom: none; }
.gk-service-section.reverse { direction: rtl; }
.gk-service-section.reverse > * { direction: ltr; }
.gk-service-img {
  height: 320px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  position: relative;
  overflow: hidden;
}
.gk-service-img::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  height: 5px; width: 100%;
  background: #e85d04;
}
.gk-service-img.civil { background: linear-gradient(145deg, #2a4a6e, #0d1b2a); }
.gk-service-img.construct { background: linear-gradient(145deg, #3a2a0d, #1a0d00); }
.gk-service-img.house { background: linear-gradient(145deg, #1a3a2a, #0d1a12); }
.gk-service-img.interior { background: linear-gradient(145deg, #3a1a2a, #1a0d14); }
.gk-service-content-tag {
  display: inline-block;
  background: #e85d04;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  padding: 5px 14px;
  margin-bottom: 14px;
}
.gk-service-content-title {
  font-size: 1.8rem;
  font-weight: 900;
  color: #0d1b2a;
  margin-bottom: 18px;
  line-height: 1.3;
}
.gk-service-content-body {
  font-size: 0.9rem;
  color: #555;
  line-height: 2;
  margin-bottom: 20px;
}
.gk-service-points {
  list-style: none;
  padding: 0;
  margin: 0;
}
.gk-service-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: #333;
  padding: 6px 0;
  border-bottom: 1px solid #f0f0f0;
}
.gk-service-points li::before {
  content: '▶';
  color: #e85d04;
  font-size: 0.65rem;
  margin-top: 4px;
  flex-shrink: 0;
}

/* === 施工実績ページ === */
.gk-works-filter {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.gk-filter-btn {
  display: inline-block;
  padding: 8px 24px;
  border: 2px solid #ddd;
  border-radius: 2px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  color: #555;
  background: #fff;
  transition: all 0.2s;
}
.gk-filter-btn:hover,
.gk-filter-btn.active {
  border-color: #e85d04;
  background: #e85d04;
  color: #fff;
}
.gk-works-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* === 採用ページ === */
.gk-recruit-appeal {
  background: #0d1b2a;
  text-align: center;
  padding: 80px 0;
}
.gk-recruit-appeal-title {
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 20px;
  line-height: 1.3;
}
.gk-recruit-appeal-title .accent { color: #e85d04; }
.gk-recruit-appeal-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.75);
  line-height: 2;
  max-width: 640px;
  margin: 0 auto 36px;
}
.gk-jobs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}
.gk-job-card {
  background: #fff;
  border-radius: 4px;
  padding: 32px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  border-top: 4px solid #e85d04;
}
.gk-job-icon { font-size: 2.4rem; margin-bottom: 12px; display: block; }
.gk-job-title {
  font-size: 1.2rem;
  font-weight: 900;
  color: #0d1b2a;
  margin-bottom: 10px;
}
.gk-job-desc {
  font-size: 0.87rem;
  color: #666;
  line-height: 1.9;
  margin-bottom: 14px;
}
.gk-job-tag {
  display: inline-block;
  background: #f0f4f8;
  color: #0d1b2a;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 2px;
  margin: 2px;
}
.gk-benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}
.gk-benefit-item {
  background: #f5f5f5;
  border-radius: 4px;
  padding: 28px 20px;
  text-align: center;
}
.gk-benefit-icon { font-size: 2rem; margin-bottom: 10px; display: block; }
.gk-benefit-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #0d1b2a;
  margin-bottom: 6px;
}
.gk-benefit-desc { font-size: 0.8rem; color: #666; line-height: 1.7; }
.gk-entry-box {
  background: linear-gradient(135deg, #0d1b2a, #1e3a5f);
  border-radius: 4px;
  padding: 56px;
  text-align: center;
  color: #fff;
}
.gk-entry-box h3 {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 14px;
}
.gk-entry-box p { font-size: 0.95rem; opacity: 0.85; margin-bottom: 32px; line-height: 1.9; }

/* === お問い合わせページ === */
.gk-contact-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 56px;
  align-items: start;
}
.gk-form-group { margin-bottom: 24px; }
.gk-form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.87rem;
  font-weight: 700;
  color: #0d1b2a;
  margin-bottom: 8px;
}
.gk-required {
  background: #e85d04;
  color: #fff;
  font-size: 0.65rem;
  padding: 2px 7px;
  border-radius: 2px;
}
.gk-form-input,
.gk-form-textarea,
.gk-form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #ddd;
  border-radius: 2px;
  font-size: 0.9rem;
  transition: border-color 0.2s;
  font-family: inherit;
  color: #333;
  background: #fff;
}
.gk-form-input:focus,
.gk-form-textarea:focus,
.gk-form-select:focus {
  outline: none;
  border-color: #e85d04;
}
.gk-form-textarea { height: 180px; resize: vertical; }
.gk-form-submit {
  background: #e85d04;
  color: #fff;
  border: none;
  padding: 16px 60px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: background 0.25s, transform 0.2s;
}
.gk-form-submit:hover {
  background: #c84d00;
  transform: translateY(-2px);
}
.gk-contact-info-box {
  background: #0d1b2a;
  border-radius: 4px;
  padding: 36px 28px;
  color: #fff;
}
.gk-contact-info-box h3 {
  font-size: 1rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.gk-tel-number {
  font-size: 1.9rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  color: #fff;
}
.gk-tel-hours {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 24px;
}
.gk-info-dl { margin: 0; }
.gk-info-dl dt {
  font-size: 0.75rem;
  color: #e85d04;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-top: 18px;
  margin-bottom: 4px;
}
.gk-info-dl dt:first-child { margin-top: 0; }
.gk-info-dl dd {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.7;
}

/* === フッター上部CTAバー === */
.gk-cta-bar {
  background: #e85d04;
  padding: 28px 0;
  text-align: center;
}
.gk-cta-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.gk-cta-bar p {
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  margin: 0;
}

/* === レスポンシブ === */
@media (max-width: 900px) {
  .gk-service-grid { grid-template-columns: repeat(2, 1fr); }
  .gk-strength-grid { grid-template-columns: 1fr; }
  .gk-works-grid,
  .gk-works-gallery { grid-template-columns: repeat(2, 1fr); }
  .gk-about-inner { grid-template-columns: 1fr; }
  .gk-president { grid-template-columns: 1fr; }
  .gk-president-photo { height: 200px; }
  .gk-philosophy-grid { grid-template-columns: 1fr; }
  .gk-service-section { grid-template-columns: 1fr; gap: 32px; }
  .gk-service-section.reverse { direction: ltr; }
  .gk-jobs-grid { grid-template-columns: 1fr; }
  .gk-benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .gk-contact-grid { grid-template-columns: 1fr; }
  .gk-access-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .gk-section { padding: 56px 0; }
  .gk-section-title { font-size: 1.5rem; }
  .gk-hero { clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%); min-height: 80vh; }
  .gk-stats { grid-template-columns: 1fr; }
  .gk-stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.25); }
  .gk-service-grid { grid-template-columns: 1fr; }
  .gk-works-grid,
  .gk-works-gallery { grid-template-columns: 1fr; }
  .gk-benefits-grid { grid-template-columns: 1fr; }
  .gk-entry-box { padding: 36px 20px; }
  .gk-page-hero-title { font-size: 1.8rem; }
  .gk-recruit-appeal-title { font-size: 1.7rem; }
  .gk-cta-bar-inner { flex-direction: column; gap: 16px; }
  .gk-hero-btns { flex-direction: column; align-items: center; }
  .gk-info-table th { width: 120px; }
  .gk-hero-btns { align-items: flex-start; }
}

/* ================================================
   追加: 固定ヘッダー + ヒーロースライダー + 行書体
================================================ */

/* === 固定ヘッダー === */
.gk-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}
.gk-header.scrolled {
  background: rgba(13, 27, 42, 0.60);
  box-shadow: 0 2px 24px rgba(0,0,0,0.2);
  backdrop-filter: blur(10px);
}
.gk-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 36px;
  height: 90px;
}
.gk-logo { display: flex; align-items: center; text-decoration: none !important; }
.gk-logo img { height: 76px; width: auto; display: block; }
.gk-nav {
  display: flex;
  align-items: center;
  gap: 0;
}
.gk-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0;
}
.gk-nav-list li a {
  display: block;
  color: #fff !important;
  text-decoration: none !important;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 8px 13px;
  letter-spacing: 0.04em;
  transition: color 0.2s;
  white-space: nowrap;
}
.gk-nav-list li a:hover { color: #e85d04 !important; }
.gk-nav-contact-btn {
  background: #e85d04 !important;
  border-radius: 2px;
  color: #fff !important;
  padding: 8px 14px !important;
  transition: background 0.2s !important;
}
.gk-nav-contact-btn:hover { background: #c84d00 !important; color: #fff !important; }
.gk-nav-divider {
  width: 1px;
  height: 24px;
  background: rgba(255,255,255,0.3);
  margin: 0 16px;
}
.gk-nav-tel {
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.gk-nav-tel a {
  color: #fff !important;
  text-decoration: none !important;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.gk-nav-tel a:hover { color: #e85d04 !important; }
.gk-nav-tel-icon { font-size: 0.85rem; }

/* ハンバーガー（スマホ用） */
.gk-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 10;
}
.gk-hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s;
}

/* スマホ用ドロワー */
.gk-nav-drawer {
  display: none;
  position: fixed;
  top: 90px; left: 0; right: 0;
  background: rgba(13,27,42,0.97);
  padding: 20px 0;
  z-index: 999;
  backdrop-filter: blur(8px);
}
.gk-nav-drawer.open { display: block; }
.gk-nav-drawer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.gk-nav-drawer ul li a {
  display: block;
  color: #fff !important;
  text-decoration: none !important;
  padding: 14px 32px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: color 0.2s, padding-left 0.2s;
}
.gk-nav-drawer ul li a:hover { color: #e85d04 !important; padding-left: 40px; }
.gk-nav-drawer .gk-drawer-tel {
  padding: 16px 32px 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: #e85d04;
}

/* === ヒーロー スライダー（index.html用） === */
.gk-hero {
  justify-content: flex-start !important;
  text-align: left !important;
}
.gk-hero-slides {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.gk-hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.8s ease;
}
.gk-hero-slide.active { opacity: 1; }
.gk-hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.38);
  z-index: 1;
}

/* キャッチコピー：左揃え */
.gk-hero-content {
  position: relative;
  z-index: 3;
  text-align: left;
  padding-left: clamp(24px, 8%, 120px);
  padding-top: 40px;
  max-width: 640px;
}

/* 行書体ラベル：右半分の中央 */
.gk-hero-kanji-wrap {
  position: absolute;
  left: 75%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  height: 280px;
}
.gk-hero-kanji {
  position: absolute;
  top: 0; left: 0;
  font-family: 'Yuji Syuku', serif;
  font-size: clamp(4.6rem, 8vw, 7.6rem);
  color: rgba(255, 255, 255, 0.8);
  writing-mode: vertical-rl;
  letter-spacing: 0.12em;
  line-height: 1;
  opacity: 0;
  transition: opacity 1.8s ease;
  white-space: nowrap;
  user-select: none;
  text-shadow: 2px 4px 24px rgba(0,0,0,0.45);
}
.gk-hero-kanji.active { opacity: 1; }

/* ページヒーロー：固定ヘッダー分の余白 */
.gk-page-hero { padding-top: 170px !important; }

/* === レスポンシブ (ヘッダー) === */
@media (max-width: 960px) {
  .gk-nav { display: none; }
  .gk-hamburger { display: flex; }
  .gk-header-inner { padding: 0 20px; }
}

/* スマホ：ヘッダー背景を完全に透明 */
@media (max-width: 600px) {
  .gk-header,
  .gk-header.scrolled {
    background: transparent !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
  }
  /* スマホ：ロゴを2倍 */
  .gk-logo img {
    height: 90px;
  }
  /* スマホ：ロゴはスーッとフェードアウト（スペースは残してハンバーガーを右固定） */
  .gk-logo {
    transition: opacity 0.5s ease;
  }
  .gk-header.scrolled .gk-logo {
    opacity: 0;
    pointer-events: none;
  }
  /* スマホ：行書体をボタン横に配置 */
  .gk-hero-kanji-wrap {
    left: auto;
    right: 84px;
    top: 70%;
    bottom: auto;
    transform: translateY(-50%);
    height: auto;
  }
  .gk-hero-kanji {
    font-size: 3.2rem;
  }
  /* コンテンツを上から始めてヘッダー分の余白を確保（全機種で被り解消） */
  #gk-hero {
    align-items: flex-start !important;
  }
  .gk-hero-content {
    padding-left: 24px;
    max-width: 78%;
    padding-top: 110px;
  }
}

/* iPhone SE / Galaxy S8など小さい機種：バッジを非表示にしてボタン切れを解消 */
@media (max-width: 380px) {
  .gk-hero-badge { display: none; }
  .gk-hero-content { padding-top: 95px; }
}

/* ============================================================
   事業内容セクション（桐山スタイル）
   ============================================================ */
.gk-biz-section {
  background: #f5f5f5;
  padding: 100px 0 120px;
}
.gk-container-wide {
  width: min(92%, 1400px);
  margin: 0 auto;
}

/* ヘッダー行 */
.gk-biz-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 72px;
  border-bottom: 1px solid rgba(0,0,0,0.1);
  padding-bottom: 40px;
}
.gk-biz-header-left {
  flex-shrink: 0;
}
.gk-biz-en {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: #e85d04;
  font-weight: 700;
  margin: 0 0 8px;
  text-transform: uppercase;
}
.gk-biz-main-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  color: #0d1b2a;
  margin: 0;
  letter-spacing: 0.05em;
  line-height: 1.1;
}
.gk-biz-header-right {
  max-width: 480px;
}
.gk-biz-lead {
  font-size: 1.08rem;
  color: rgba(0,0,0,0.55);
  line-height: 1.9;
  margin: 0;
}

/* カード列（スタガー） */
.gk-biz-cards {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.gk-biz-card {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  display: block;
  text-decoration: none;
  cursor: pointer;
  aspect-ratio: 3 / 4;
}
.gk-biz-card--1 { margin-top: 0; }
.gk-biz-card--2 { margin-top: 48px; }
.gk-biz-card--3 { margin-top: 96px; }
.gk-biz-card--4 { margin-top: 144px; }

.gk-biz-card-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}
.gk-biz-card:hover .gk-biz-card-img {
  transform: scale(1.06);
}

.gk-biz-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(13,27,42,0.88) 0%,
    rgba(13,27,42,0.35) 50%,
    rgba(0,0,0,0.05) 100%
  );
  transition: background 0.3s;
}
.gk-biz-card:hover .gk-biz-card-overlay {
  background: linear-gradient(
    to top,
    rgba(232,93,4,0.75) 0%,
    rgba(13,27,42,0.4) 60%,
    rgba(0,0,0,0.05) 100%
  );
}

.gk-biz-card-body {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px 24px;
  color: #fff;
}
.gk-biz-num-label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: #e85d04;
  font-weight: 700;
  margin-bottom: 4px;
}
.gk-biz-num {
  display: block;
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(255,255,255,0.8);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.gk-biz-title {
  font-size: 1.32rem;
  font-weight: 900;
  color: #fff;
  margin: 0 0 10px;
  letter-spacing: 0.05em;
}
.gk-biz-desc {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.7;
  margin: 0;
}

/* CTAボタン（アウトライン・白背景用） */
.gk-btn-outline-white {
  display: inline-block;
  padding: 14px 48px;
  border: 2px solid #0d1b2a;
  color: #0d1b2a;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.gk-btn-outline-white:hover {
  background: #e85d04;
  border-color: #e85d04;
  color: #fff;
}

/* スマホ対応 */
@media (max-width: 768px) {
  .gk-biz-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 48px;
  }
  .gk-biz-header-right { max-width: 100%; }
  .gk-biz-cards {
    flex-wrap: wrap;
    gap: 16px;
  }
  .gk-biz-card {
    flex: 1 1 calc(50% - 8px);
    aspect-ratio: 2 / 3;
  }
  .gk-biz-card--1,
  .gk-biz-card--2,
  .gk-biz-card--3,
  .gk-biz-card--4 {
    margin-top: 0;
  }
}
@media (max-width: 480px) {
  .gk-biz-section .gk-container-wide {
    width: 96%;
  }
  .gk-biz-card {
    flex: 1 1 100%;
    aspect-ratio: 4 / 3;
  }
  .gk-biz-card-body {
    padding: 20px 18px;
  }
  .gk-biz-num {
    font-size: 2rem;
    margin-bottom: 4px;
  }
  .gk-biz-num-label {
    font-size: 0.7rem;
    margin-bottom: 2px;
  }
  .gk-biz-title {
    font-size: 1.15rem;
    margin-bottom: 6px;
  }
  .gk-biz-desc {
    font-size: 0.82rem;
  }
  .gk-biz-section { padding: 64px 0 80px; }
}

/* ===== フッター ===== */
.gk-footer {
  background: #0d1b2a;
  color: #ccc;
  padding: 64px 0 0;
}
.gk-footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 48px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.gk-footer-brand {}
.gk-footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}
.gk-footer-logo img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}
.gk-footer-tagline {
  font-size: 0.82rem;
  color: #aaa;
  line-height: 1.9;
  margin-bottom: 20px;
}
.gk-footer-tel-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.gk-footer-tel {
  font-size: 1.45rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}
.gk-footer-tel-note {
  font-size: 0.75rem;
  color: #888;
}
.gk-footer-nav-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #e85d04;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #1e3a5a;
}
.gk-footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.gk-footer-nav a {
  color: #bbb;
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.gk-footer-nav a::before {
  content: '›';
  color: #e85d04;
  font-size: 1rem;
}
.gk-footer-nav a:hover { color: #fff; }
.gk-footer-info-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #e85d04;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #1e3a5a;
}
.gk-footer-info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  margin: 0;
  font-size: 0.83rem;
}
.gk-footer-info dt {
  color: #888;
  white-space: nowrap;
}
.gk-footer-info dd {
  color: #ccc;
  margin: 0;
  line-height: 1.6;
}
.gk-footer-bottom {
  margin-top: 48px;
  border-top: 1px solid #1e3a5a;
  padding: 20px 40px;
  max-width: 1100px;
  margin: 48px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.gk-footer-copy {
  font-size: 0.75rem;
  color: #666;
}
.gk-footer-copy-wrap {
  background: #0d1b2a;
  padding: 0 0 24px;
  overflow: hidden;
}
@media (max-width: 900px) {
  .gk-footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .gk-footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 600px) {
  .gk-footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 24px;
  }
  .gk-footer-brand { grid-column: auto; }
  .gk-footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    padding: 20px 24px;
  }
}

/* ===== 採用：先輩の声 背景（写真＋斜めオレンジオーバーレイ） ===== */
.gk-recruit-voice {
  position: relative;
  background-image: url('images/recruit-voice-bg.jpg');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.gk-recruit-voice::before {
  content: '';
  position: absolute;
  inset: 0;
  /* 左上→右下への斜めオレンジグラデーション */
  background: linear-gradient(
    135deg,
    rgba(232, 93, 4, 0.92) 0%,
    rgba(232, 93, 4, 0.88) 45%,
    rgba(180, 55, 0, 0.72) 70%,
    rgba(100, 30, 0, 0.50) 100%
  );
  z-index: 0;
}
.gk-recruit-voice > * {
  position: relative;
  z-index: 1;
}

/* ===== ページヒーロー 背景写真（各ページ） ===== */
.gk-page-hero--about {
  background:
    linear-gradient(135deg, rgba(13,27,42,0.55) 0%, rgba(30,58,95,0.50) 100%),
    url('images/about-hero.jpg') center / cover no-repeat;
}
.gk-page-hero--service {
  background:
    linear-gradient(135deg, rgba(13,27,42,0.55) 0%, rgba(30,58,95,0.50) 100%),
    url('images/service-hero.jpg') center / cover no-repeat;
}
.gk-page-hero--works {
  background:
    linear-gradient(135deg, rgba(13,27,42,0.55) 0%, rgba(30,58,95,0.50) 100%),
    url('images/works-hero.jpg') center / cover no-repeat;
}
.gk-page-hero--recruit {
  background:
    linear-gradient(135deg, rgba(13,27,42,0.55) 0%, rgba(30,58,95,0.50) 100%),
    url('images/recruit-hero.jpg') center / cover no-repeat;
}

/* ===== 企業理念 リニューアル ===== */
.gk-philosophy {
  background: #0d1b2a;
  color: #fff;
  padding: 0;
}
.gk-philosophy-header {
  text-align: center;
  padding: 100px 40px 60px;
  border-bottom: 1px solid rgba(232,93,4,0.25);
}
.gk-philosophy-header-en {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: #e85d04;
  margin-bottom: 14px;
}
.gk-philosophy-header-ja {
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
}
.gk-philosophy-header-lead {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
}
.gk-philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: none;
}
.gk-philosophy-item {
  padding: 72px 52px;
  border-right: 1px solid rgba(232,93,4,0.2);
  position: relative;
}
.gk-philosophy-item:last-child { border-right: none; }
.gk-philosophy-num {
  font-size: 6rem;
  font-weight: 900;
  color: rgba(232,93,4,0.45);
  line-height: 1;
  margin-bottom: 20px;
  font-family: Georgia, serif;
  letter-spacing: -0.02em;
}
.gk-philosophy-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: #e85d04;
  margin-bottom: 20px;
}
.gk-philosophy-divider {
  width: 36px;
  height: 3px;
  background: #e85d04;
  margin-bottom: 24px;
}
.gk-philosophy-text {
  font-size: 1.75rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.45;
  margin-bottom: 24px;
}
.gk-philosophy-desc {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.62);
  line-height: 2.0;
}
@media (max-width: 900px) {
  .gk-philosophy-grid { grid-template-columns: 1fr; }
  .gk-philosophy-item { border-right: none; border-bottom: 1px solid rgba(232,93,4,0.2); }
  .gk-philosophy-item:last-child { border-bottom: none; }
  .gk-philosophy-item { padding: 52px 32px; }
}

/* ===== 代表写真 ===== */
.gk-president-photo {
  background: none;
  padding: 0;
  font-size: 0;
}
.gk-president-photo img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  object-position: top;
  border-radius: 4px;
  border-bottom: 4px solid #e85d04;
  display: block;
}

/* ===== 事業内容 サービス画像（写真化＋サイズUP） ===== */
.gk-service-img {
  height: 420px;
}
.gk-service-img.civil {
  background: url('images/bg-doboku.png') center / cover no-repeat;
}
.gk-service-img.construct {
  background: url('images/bg-kenchiku.png') center / cover no-repeat;
}
.gk-service-img.house {
  background: url('images/bg-jutaku.png') center / cover no-repeat;
}
.gk-service-img.interior {
  background: url('images/bg-naiso.png') center / cover no-repeat;
}

/* ===== 採用：ジョブカード画像 ===== */
.gk-job-img {
  height: 180px;
  background-size: cover;
  background-position: center;
  border-radius: 2px;
  margin: -32px -32px 20px;
}

/* ===== 採用：先輩の声 カード（コントラスト改善） ===== */
.gk-voice-card {
  background: #fff;
  border-radius: 4px;
  padding: 32px;
  color: #0d1b2a;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.gk-recruit-voice .gk-strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.gk-voice-card .gk-strength-num {
  font-size: 0.72rem;
  color: #e85d04;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 8px;
  display: block;
}
.gk-voice-card .gk-strength-title {
  font-size: 1.1rem;
  font-weight: 900;
  color: #0d1b2a;
  margin-bottom: 14px;
}
.gk-voice-card .gk-strength-desc {
  font-size: 0.85rem;
  color: #555;
  line-height: 1.9;
}
.gk-voice-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
  margin: 0 auto 16px;
  display: block;
  border: 3px solid #e85d04;
}
@media (max-width: 900px) {
  .gk-recruit-voice .gk-strength-grid { grid-template-columns: 1fr; }
}