/* ============================================================
   千葉リノベーション工房 - 共通スタイルシート
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700&family=Noto+Sans+JP:wght@400;500;700&family=Montserrat:wght@600&display=swap');

/* ============================================================
   CSS カスタムプロパティ
   ============================================================ */
:root {
  --color-primary: #4CAF50;
  --color-primary-dark: #2D5A27;
  --color-primary-light: #A5D6A7;
  --color-accent: #FF6B2B;
  --color-accent-hover: #E55A1B;
  --color-dark: #2C2C2C;
  --color-gray: #5A5A5A;
  --color-light-gray: #F4F4F4;
  --color-white: #FFFFFF;
  --color-border: #DDDDDD;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --font-en: 'Montserrat', sans-serif;

  --container-max: 1200px;
  --transition: all 0.25s ease;
}

/* ============================================================
   リセット・ベース
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-dark);
  background: var(--color-white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-sans);
}

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

/* ============================================================
   フェードインアニメーション
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.2s; }
.fade-in-delay-2 { transition-delay: 0.4s; }
.fade-in-delay-3 { transition-delay: 0.6s; }

/* ============================================================
   CTAボタン（共通）
   ============================================================ */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 14px 32px;
  border-radius: 4px;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 43, 0.35);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(76, 175, 80, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-dark);
  border: 2px solid var(--color-dark);
}

.btn-outline-dark:hover {
  background: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ============================================================
   フロートボタン
   ============================================================ */
.float-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.float-btn.visible {
  opacity: 1;
  pointer-events: auto;
}

.float-btn .btn {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  font-size: 14px;
  padding: 12px 20px;
}

/* ============================================================
   セクション見出し（共通パターン）
   ============================================================ */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-sub {
  display: block;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.section-header .section-line {
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-primary);
  margin: 0 auto;
}

/* ============================================================
   ヘッダー（共通）
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-dark);
  height: 70px;
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 16px;
}

.header-logo a {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.header-nav {
  flex: 1;
}

.header-nav ul {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-wrap: wrap;
}

.header-nav a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  padding: 6px 10px;
  border-radius: 4px;
  transition: var(--transition);
  white-space: nowrap;
}

.header-nav a:hover {
  color: var(--color-primary-light);
  background: rgba(255, 255, 255, 0.08);
}

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

.header-tel {
  text-align: right;
}

.header-tel .tel-number {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.header-tel .tel-hours {
  display: block;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.65);
  white-space: nowrap;
}

.header-cta .btn {
  font-size: 14px;
  padding: 10px 20px;
}

/* ハンバーガーメニュー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  cursor: pointer;
  flex-shrink: 0;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* SP ナビ */
.sp-nav {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-dark);
  z-index: 99;
  overflow-y: auto;
  padding: 24px;
  flex-direction: column;
  gap: 4px;
}

.sp-nav.open {
  display: flex;
}

.sp-nav a {
  display: block;
  color: var(--color-white);
  font-size: 16px;
  font-weight: 500;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sp-nav .sp-nav-cta {
  margin-top: 24px;
}

/* ============================================================
   パンくずリスト
   ============================================================ */
.breadcrumb {
  background: var(--color-light-gray);
  padding: 12px 0;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb li {
  font-size: 13px;
  color: var(--color-gray);
}

.breadcrumb li a {
  color: var(--color-primary-dark);
}

.breadcrumb li a:hover {
  text-decoration: underline;
}

.breadcrumb li:not(:last-child)::after {
  content: '›';
  margin-left: 8px;
  color: var(--color-gray);
}

/* ============================================================
   ページヒーロー（サブページ共通）
   ============================================================ */
.page-hero {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: 72px 0;
  text-align: center;
}

.page-hero .page-hero-sub {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-primary-light);
  display: block;
  margin-bottom: 8px;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   セクション共通パディング
   ============================================================ */
.section {
  padding: 96px 0;
}

.section-sm {
  padding: 64px 0;
}

/* ============================================================
   カード共通
   ============================================================ */
.card {
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

/* ============================================================
   グリッド
   ============================================================ */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

/* ============================================================
   タグ・バッジ
   ============================================================ */
.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 2px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 2px;
}

.badge-accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.badge-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.badge-gray {
  background: #AAAAAA;
  color: var(--color-white);
}

/* ============================================================
   CTAバナー（フッター直上）
   ============================================================ */
.cta-banner {
  background: var(--color-primary-dark);
  padding: 80px 0;
  text-align: center;
  color: var(--color-white);
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-banner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.cta-banner-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================================
   フッター
   ============================================================ */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 24px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand .footer-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  display: block;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 6px;
}

.footer-nav h4, .footer-sns h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

.footer-sns-links {
  display: flex;
  gap: 12px;
}

.footer-sns-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  font-size: 18px;
  transition: var(--transition);
}

.footer-sns-links a:hover {
  background: var(--color-primary);
}

.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ============================================================
   プレースホルダー画像
   ============================================================ */
.img-placeholder {
  background: linear-gradient(135deg, #c8e6c9 0%, #a5d6a7 50%, #81c784 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-dark);
  font-size: 14px;
  font-weight: 500;
  width: 100%;
}

/* ============================================================
   ヒーローセクション（index.html）
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  padding: 0 24px;
  max-width: 900px;
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 20px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero-content .hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-badge {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(4px);
  border-radius: 8px;
  padding: 16px 24px;
  text-align: center;
  min-width: 140px;
}

.hero-badge .badge-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
}

.hero-badge .badge-label {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-top: 4px;
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================================
   強み・選ばれる理由セクション
   ============================================================ */
#why-us {
  background: var(--color-light-gray);
}

.why-us-card {
  padding: 40px 32px;
  text-align: center;
}

.why-us-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-us-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-primary-dark);
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.why-us-card h3 {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.why-us-card p {
  font-size: 15px;
  color: var(--color-gray);
  line-height: 1.8;
}

/* ============================================================
   サービス一覧セクション
   ============================================================ */
#services {
  background: var(--color-white);
}

.service-card {
  background: #F5FAF5;
  border-radius: 8px;
  padding: 36px 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-card:hover {
  background: var(--color-primary-light);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(76, 175, 80, 0.2);
}

.service-card .service-icon {
  width: 52px;
  height: 52px;
  background: var(--color-white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.service-card .service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.service-card p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  flex: 1;
}

/* ============================================================
   補助金セクション
   ============================================================ */
#subsidy {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.subsidy-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: center;
}

.subsidy-left h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 16px;
}

.subsidy-left p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
  line-height: 1.8;
}

.subsidy-note {
  font-size: 12px !important;
  color: rgba(255, 255, 255, 0.55) !important;
  margin-top: 20px !important;
  margin-bottom: 0 !important;
}

.subsidy-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.subsidy-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.subsidy-card-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.subsidy-card-icon svg {
  width: 22px;
  height: 22px;
  color: white;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.subsidy-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.subsidy-card-body p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ============================================================
   施工事例セクション
   ============================================================ */
#works {
  background: var(--color-light-gray);
}

.works-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  font-size: 14px;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 24px;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-gray);
  transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.work-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.work-card.hidden {
  display: none;
}

.work-card-img {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
}

.work-card-img .img-placeholder {
  position: absolute;
  inset: 0;
  padding-top: 0;
  height: 100%;
}

.work-card-body {
  padding: 20px;
}

.work-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.work-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.work-card-info {
  font-size: 13px;
  color: var(--color-gray);
}

/* ============================================================
   施工エリアセクション
   ============================================================ */
#area {
  background: var(--color-white);
}

.area-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.area-map {
  max-width: 460px;
  margin: 0 auto;
}

.area-map svg {
  width: 100%;
  height: auto;
}

.area-info h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 24px;
}

.area-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 16px;
  margin-bottom: 20px;
}

.area-list li {
  font-size: 15px;
  color: var(--color-dark);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.area-list li::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

.area-note {
  font-size: 14px;
  color: var(--color-gray);
  padding: 12px 16px;
  background: var(--color-light-gray);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 4px 4px 0;
}

/* ============================================================
   イベントセクション
   ============================================================ */
#events {
  background: var(--color-light-gray);
}

.event-card {
  background: var(--color-white);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  display: flex;
  gap: 20px;
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
}

.event-date-block {
  text-align: center;
  background: var(--color-light-gray);
  border-radius: 6px;
  padding: 12px 16px;
  flex-shrink: 0;
  min-width: 70px;
}

.event-date-block .date-month {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-primary);
}

.event-date-block .date-day {
  display: block;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.1;
}

.event-body {
  flex: 1;
}

.event-body .event-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.event-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.event-body .event-place {
  font-size: 13px;
  color: var(--color-gray);
  margin-bottom: 8px;
}

.event-body p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 16px;
}

/* ============================================================
   FAQ セクション
   ============================================================ */
#faq {
  background: var(--color-white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto 48px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  transition: background 0.2s ease;
  user-select: none;
}

.faq-question:hover {
  background: var(--color-light-gray);
}

.faq-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-icon-q {
  background: var(--color-primary);
  color: var(--color-white);
}

.faq-icon-a {
  background: var(--color-accent);
  color: var(--color-white);
}

.faq-question h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  flex: 1;
}

.faq-arrow {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-gray);
  fill: none;
  stroke-width: 2.5;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.open .faq-answer {
  max-height: 200px;
}

.faq-answer-inner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 0 24px 20px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

.faq-answer-inner p {
  font-size: 15px;
  color: var(--color-gray);
  line-height: 1.8;
}

/* ============================================================
   サービス詳細ページ
   ============================================================ */
.service-detail {
  padding: 80px 0;
}

.service-detail-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 64px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.service-detail-item.reverse {
  direction: rtl;
}

.service-detail-item.reverse > * {
  direction: ltr;
}

.service-detail-content .service-number {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-primary);
  display: block;
  margin-bottom: 8px;
}

.service-detail-content h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.service-detail-content p {
  font-size: 15px;
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 20px;
}

.service-detail-content ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.service-detail-content ul li {
  font-size: 14px;
  color: var(--color-dark);
  padding-left: 20px;
  position: relative;
}

.service-detail-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.service-detail-img {
  border-radius: 8px;
  overflow: hidden;
}

.service-detail-img .img-placeholder {
  height: 280px;
}

/* ============================================================
   施工事例ページ
   ============================================================ */
.works-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.works-filter-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-dark);
  cursor: pointer;
}

.works-filter-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.before-after-toggle {
  display: flex;
  gap: 0;
  margin-bottom: 0;
}

.ba-btn {
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-gray);
  cursor: pointer;
  transition: var(--transition);
}

.ba-btn:first-child {
  border-radius: 3px 0 0 3px;
}

.ba-btn:last-child {
  border-radius: 0 3px 3px 0;
  border-left: none;
}

.ba-btn.active {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* ============================================================
   お問い合わせページ
   ============================================================ */
.contact-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.contact-method {
  text-align: center;
  padding: 36px 24px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.contact-method:hover, .contact-method.active {
  border-color: var(--color-primary);
  background: #F5FAF5;
}

.contact-method-icon {
  width: 56px;
  height: 56px;
  background: var(--color-light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  transition: var(--transition);
}

.contact-method:hover .contact-method-icon,
.contact-method.active .contact-method-icon {
  background: var(--color-primary-light);
}

.contact-method-icon svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary-dark);
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.contact-method h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.contact-method p {
  font-size: 13px;
  color: var(--color-gray);
  line-height: 1.6;
}

.contact-form-section {
  background: var(--color-white);
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: 48px;
  margin-bottom: 64px;
}

.contact-form-section h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-primary-light);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.form-group label .required {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(255, 107, 43, 0.1);
  padding: 2px 6px;
  border-radius: 2px;
  margin-left: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  border: 1.5px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-white);
  transition: border-color 0.2s ease;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-group .form-error {
  display: none;
  font-size: 12px;
  color: #e53935;
  margin-top: 4px;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: #e53935;
}

.form-group.has-error .form-error {
  display: block;
}

.form-agree {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px;
  background: var(--color-light-gray);
  border-radius: 4px;
  margin-bottom: 32px;
}

.form-agree input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.form-agree label {
  font-size: 14px;
  color: var(--color-dark);
  line-height: 1.6;
}

.form-agree a {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.form-submit {
  text-align: center;
}

.form-submit .btn {
  min-width: 240px;
  font-size: 17px;
  padding: 16px 48px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 48px;
}

.form-success.show {
  display: block;
}

.form-success h3 {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.form-success p {
  color: var(--color-gray);
}

.contact-access {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-access h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
}

.access-info dl {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px 16px;
  font-size: 14px;
}

.access-info dt {
  font-weight: 700;
  color: var(--color-gray);
}

.access-info dd {
  color: var(--color-dark);
}

.access-map-placeholder {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
  border-radius: 8px;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-dark);
  font-size: 14px;
  font-weight: 500;
}

/* ============================================================
   レスポンシブ
   ============================================================ */
@media (max-width: 1199px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .header-tel {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 60px;
  }

  .header-inner {
    height: 60px;
  }

  .header-logo a {
    font-size: 15px;
  }

  .header-nav, .header-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content .hero-sub {
    font-size: 15px;
  }

  .hero-badges {
    gap: 12px;
  }

  .hero-badge {
    min-width: 100px;
    padding: 12px 16px;
  }

  .hero-badge .badge-num {
    font-size: 22px;
  }

  .section {
    padding: 64px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-header h2 {
    font-size: 26px;
  }

  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .subsidy-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .area-inner {
    grid-template-columns: 1fr;
  }

  .service-detail-item {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .service-detail-item.reverse {
    direction: ltr;
  }

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

  .contact-form-section {
    padding: 24px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .page-hero h1 {
    font-size: 28px;
  }

  .cta-banner h2 {
    font-size: 26px;
  }

  .hero {
    height: 85vh;
  }
}

/* ============================================================
   遊び心アニメーション
   ============================================================ */

/* ── 1. CTA ボタン シマー ── */
.btn-accent {
  position: relative;
  overflow: hidden;
}
.btn-accent::after {
  content: '';
  position: absolute;
  top: 0; left: -120%;
  width: 55%;
  height: 100%;
  background: linear-gradient(100deg, transparent 20%, rgba(255,255,255,0.30) 50%, transparent 80%);
  transform: skewX(-20deg);
  animation: btnShimmer 3.8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes btnShimmer {
  0%       { left: -120%; }
  35%, 100%{ left: 160%; }
}

/* ── 2. ヒーロー 浮遊アイコン ── */
.hero-floats {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}
.hero-float {
  position: absolute;
  color: #fff;
  opacity: 0;
  animation: heroFloat linear infinite;
}
@keyframes heroFloat {
  0%   { transform: translateY(0)     rotate(0deg);  opacity: 0; }
  8%   {                                              opacity: 0.13; }
  88%  {                                              opacity: 0.13; }
  100% { transform: translateY(-95vh) rotate(22deg); opacity: 0; }
}

/* ── 3. ヒーロー スクロールヒント ── */
.hero-scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero-scroll-hint span {
  display: block;
  width: 22px;
  height: 36px;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 11px;
  position: relative;
}
.hero-scroll-hint span::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  border-radius: 2px;
  background: rgba(255,255,255,0.85);
  animation: mouseScroll 2s ease-in-out infinite;
}
@keyframes mouseScroll {
  0%   { top: 6px;  opacity: 1; }
  100% { top: 20px; opacity: 0; }
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(7px); }
}

/* ── 4. ウェーブ区切り ── */
.wave-divider {
  line-height: 0;
  overflow: hidden;
  margin-top: -2px;
}
.wave-divider svg {
  display: block;
  width: 100%;
}

/* ── 5. ヒーローバッジ パルスリング ── */
.hero-badge {
  position: relative;
}
.hero-badge::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 10px;
  border: 1.5px solid rgba(255,255,255,0.45);
  animation: badgePulse 2.8s ease-in-out infinite;
  pointer-events: none;
}
@keyframes badgePulse {
  0%, 100% { transform: scale(1);    opacity: 1; }
  50%       { transform: scale(1.07); opacity: 0; }
}

/* ── 6. 強みカード 装飾サークル ── */
.why-us-card {
  position: relative;
  overflow: hidden;
}
.why-us-card::before {
  content: '';
  position: absolute;
  top: -55px; right: -55px;
  width: 130px; height: 130px;
  border-radius: 50%;
  background: var(--color-primary-light);
  opacity: 0.18;
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}
.why-us-card:hover::before {
  transform: scale(1.65);
}

/* ── 7. アイコン バウンス（ホバー）── */
.why-us-card:hover .why-us-icon,
.service-card:hover .service-icon {
  animation: iconBounce 0.52s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes iconBounce {
  0%   { transform: scale(1)    rotate(0deg); }
  40%  { transform: scale(1.28) rotate(-12deg); }
  70%  { transform: scale(0.93) rotate(6deg); }
  100% { transform: scale(1)    rotate(0deg); }
}

/* ── 8. サービスカード ✦ ポップ ── */
.service-card {
  position: relative;
}
.service-card::after {
  content: '✦';
  position: absolute;
  top: 12px; right: 14px;
  font-size: 15px;
  color: var(--color-primary);
  opacity: 0;
  transform: scale(0) rotate(-30deg);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}
.service-card:hover::after {
  opacity: 0.65;
  transform: scale(1) rotate(0deg);
}

/* ── サービスカード 背景画像バリアント ── */
.service-card.img-bg {
  background-size: cover;
  background-position: center;
}
.service-card.img-bg h3 {
  color: #fff;
}
.service-card.img-bg p {
  color: rgba(255, 255, 255, 0.85);
}
.service-card.img-bg::after {
  color: rgba(255, 255, 255, 0.8);
}
.service-card.img-bg .service-icon {
  background: rgba(255, 255, 255, 0.15);
  box-shadow: none;
}
.service-card.img-bg .service-icon svg {
  color: #fff;
}
.service-card.img-bg:hover {
  background-color: transparent;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}

/* ── 9. 補助金セクション アニメグラデ ── */
#subsidy {
  background: linear-gradient(135deg, #19391a 0%, #2D5A27 48%, #1b4519 100%);
  background-size: 400% 400%;
  animation: subsidyGrad 10s ease infinite;
}
@keyframes subsidyGrad {
  0%, 100% { background-position:   0% 50%; }
  50%       { background-position: 100% 50%; }
}

/* ── 10. FAQ 背景ドットパターン ── */
#faq {
  position: relative;
}
#faq::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(76,175,80,0.10) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
}
#faq > .container {
  position: relative;
  z-index: 1;
}

/* ── 11. セクション見出しライン スライドイン ── */
.section-line {
  display: block;
  width: 60px; height: 3px;
  background: var(--color-primary);
  margin: 0 auto;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.section-line.line-visible {
  transform: scaleX(1);
}

/* ── 12. リップルエフェクト ── */
.btn { position: relative; overflow: hidden; }
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  width: 10px; height: 10px;
  margin-top: -5px; margin-left: -5px;
  transform: scale(0);
  animation: rippleAnim 0.65s linear;
  pointer-events: none;
}
@keyframes rippleAnim {
  to { transform: scale(35); opacity: 0; }
}

/* ── 13. 施工エリア マップ ドットホバー ── */
.dot-main, .dot-sub, .dot-out {
  transition: filter 0.2s ease;
  cursor: default;
}
.dot-main:hover { filter: brightness(1.3) drop-shadow(0 0 4px rgba(76,175,80,0.6)); }
.dot-sub:hover  { filter: brightness(1.2) drop-shadow(0 0 3px rgba(76,175,80,0.5)); }

/* ── 14. カード カウントアップ数字 ── */
[data-count-to] {
  display: inline-block;
  transition: color 0.1s ease;
}

/* ── 15. 補助金カード エントランス ── */
.subsidy-card {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease;
}
.subsidy-card:hover {
  transform: translateX(6px);
  background: rgba(255,255,255,0.18);
}

/* ============================================================
   丸みのある表現 デザインオーバーライド
   ============================================================ */

/* ── セクション: ウェーブ用 position:relative ── */
.hero,
.section,
.cta-banner {
  position: relative;
  overflow: hidden;
}

/* ── ウェーブ底部 (sections内に absolute配置) ── */
.section-wave-bottom {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  line-height: 0;
  pointer-events: none;
  z-index: 2;
}
.section-wave-bottom svg {
  display: block;
  width: 100%;
}
/* セクションに十分な bottom padding を確保 */
.section {
  padding-bottom: 120px;
}

/* ── ボタン: ピル型 ── */
.btn                { border-radius: 40px; }
.btn-accent         { border-radius: 40px; }
.btn-primary        { border-radius: 40px; }
.btn-outline        { border-radius: 40px; }
.btn-outline-dark   { border-radius: 40px; }

/* ── カード ── */
.card,
.why-us-card,
.work-card,
.event-card        { border-radius: 24px; }
.service-card      { border-radius: 24px; }
.subsidy-card      { border-radius: 20px; }
.faq-item          { border-radius: 20px; }
.contact-method    { border-radius: 24px; }
.contact-form-section { border-radius: 28px; }

/* ── タグ・バッジ: ピル ── */
.tag               { border-radius: 20px; padding: 4px 14px; }
.badge             { border-radius: 20px; padding: 4px 12px; }

/* ── ヒーローバッジ ── */
.hero-badge        { border-radius: 20px; }

/* ── セクション見出し サブテキスト ── */
.section-sub {
  display: inline-block;
  background: rgba(76, 175, 80, 0.12);
  padding: 4px 16px;
  border-radius: 20px;
}

/* ── page-hero サブテキスト ── */
.page-hero-sub {
  display: inline-block;
  background: rgba(255, 255, 255, 0.18);
  padding: 4px 16px;
  border-radius: 20px;
}

/* ── イベント日付ブロック ── */
.event-date-block  { border-radius: 16px; }

/* ── フォーム要素 ── */
.form-group input,
.form-group select,
.form-group textarea {
  border-radius: 14px;
}
.form-agree        { border-radius: 16px; }

/* ── アクセスマップ ── */
.access-map-placeholder { border-radius: 24px; }

/* ── img プレースホルダー ── */
.img-placeholder   { border-radius: 16px; }

/* ── タブボタン（既存24pxから拡張） ── */
.tab-btn           { border-radius: 30px; }
.event-tab-btn     { border-radius: 30px; }

/* ── フロートボタン ── */
.float-btn .btn    { border-radius: 40px; }

/* ── ヘッダー CTA ── */
.header-cta .btn   { border-radius: 40px; }

/* ── Before/After トグルボタン ── */
.ba-btn:first-child { border-radius: 20px 0 0 20px; }
.ba-btn:last-child  { border-radius: 0 20px 20px 0; }

/* ── サービス詳細ページ 画像 ── */
.service-detail-img { border-radius: 24px; }
.service-detail-img .img-placeholder { border-radius: 24px; }

/* ── 補助金セクション overflow見直し ── */
#subsidy { overflow: visible; }
#subsidy .section-wave-bottom { z-index: 3; }