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

:root {
  --primary: #1a4c8b;
  --primary-light: #2d6abf;
  --accent: #e8a020;
  --text: #1a1a1a;
  --text-sub: #555;
  --bg-light: #f5f7fa;
  --white: #fff;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  text-decoration: none;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
}
.btn--primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(232,160,32,0.4);
}
.btn--primary:hover { background: #d4911a; transform: translateY(-2px); }
.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn--outline:hover { background: rgba(255,255,255,0.15); }
.btn--nav {
  background: var(--accent);
  color: var(--white);
  padding: 10px 24px;
  font-size: 14px;
}
.btn--large { padding: 18px 48px; font-size: 18px; }

/* ===== セクション共通 ===== */
section { padding: 80px 0; }
.section-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 48px;
  position: relative;
}
.section-title span { color: var(--primary); }
.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin: 12px auto 0;
  border-radius: 2px;
}

/* ===== ヘッダー ===== */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  z-index: 100;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo__mark {
  background: var(--primary);
  color: var(--white);
  font-weight: 700;
  font-size: 20px;
  padding: 4px 10px;
  border-radius: 4px;
}
.logo__text { font-weight: 700; font-size: 18px; color: var(--text); }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { text-decoration: none; color: var(--text); font-weight: 500; font-size: 14px; }
.nav a:not(.btn):hover { color: var(--primary); }

/* ===== ヒーロー ===== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, #0e2f5e 0%, #1a4c8b 50%, #1e6091 100%);
  position: relative;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero__inner { position: relative; }
.hero__badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: #fff;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.3);
}
.hero__title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.35;
  margin-bottom: 20px;
}
.hero__accent {
  background: linear-gradient(90deg, var(--accent), #f5c842);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero__sub {
  color: rgba(255,255,255,0.85);
  font-size: 18px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.hero__badges { display: flex; gap: 20px; flex-wrap: wrap; }
.badge-item {
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  font-weight: 500;
}

/* ===== 強み ===== */
.strengths { background: var(--bg-light); }
.strengths__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.strength-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}
.strength-card:hover { transform: translateY(-4px); }
.strength-card__icon { font-size: 48px; margin-bottom: 16px; }
.strength-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--primary); line-height: 1.4; }
.strength-card p { color: var(--text-sub); font-size: 14px; }

/* ===== サービス ===== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-item {
  display: flex;
  gap: 20px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border-left: 4px solid var(--primary);
}
.service-item__img {
  width: 120px;
  flex-shrink: 0;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}
.service-item__img--wallpaper::after { content: '🖼️'; }
.service-item__img--floor::after { content: '🪵'; }
.service-item__img--cushion::after { content: '🏠'; }
.service-item__img--tatami::after { content: '🌿'; }
.service-item__img--fusuma::after { content: '🚪'; }
.service-item__img--aircon::after { content: '❄️'; }
.service-item__img--other::after { content: '🔧'; }
.service-item__body { padding: 24px 20px 24px 0; flex: 1; }
.service-item__body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.service-item__body p { font-size: 14px; color: var(--text-sub); margin-bottom: 12px; }
.service-item__price { font-size: 14px; color: var(--text-sub); }
.service-item__price strong { font-size: 22px; color: var(--accent); font-weight: 700; }

/* ===== 実績 ===== */
.works { background: var(--bg-light); }
.works__stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-bottom: 56px;
}
.stat { text-align: center; }
.stat__num {
  font-size: 52px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.stat__num span { font-size: 20px; }
.stat__label { font-size: 14px; color: var(--text-sub); margin-top: 8px; }
.reviews {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.review-card__stars { color: #f5a623; font-size: 18px; margin-bottom: 12px; }
.review-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 16px; }
.review-card__meta { font-size: 13px; color: #999; }

/* ===== 業者紹介 ===== */
.about__inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 60px;
  align-items: center;
}
.about__img-placeholder {
  width: 280px;
  height: 320px;
  background: var(--bg-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aaa;
  font-size: 14px;
  border: 2px dashed #ddd;
}
.about__text h2 { font-size: 26px; font-weight: 700; margin-bottom: 20px; line-height: 1.4; }
.about__text p { color: var(--text-sub); margin-bottom: 16px; }
.about__certs { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-top: 24px; }
.about__certs li { color: var(--primary); font-weight: 500; font-size: 15px; }

/* ===== FAQ ===== */
.faq { background: var(--bg-light); }
.faq__list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.faq-item__q {
  background: var(--primary);
  color: var(--white);
  padding: 16px 24px;
  font-weight: 700;
  font-size: 15px;
}
.faq-item__a {
  padding: 16px 24px;
  color: var(--text-sub);
  font-size: 15px;
}

/* ===== お問い合わせ ===== */
.contact {
  background: linear-gradient(135deg, #0e2f5e, #1a4c8b);
  color: var(--white);
}
.contact .section-title { color: var(--white); }
.contact .section-title span { color: var(--accent); }
.contact__sub { text-align: center; color: rgba(255,255,255,0.8); margin-bottom: 24px; }
.contact__tel { text-align: center; margin-bottom: 36px; }
.btn--tel {
  background: var(--white);
  color: var(--primary);
  font-size: 22px;
  font-weight: 700;
  padding: 16px 40px;
  border-radius: 50px;
  display: inline-block;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.btn--tel:hover { background: #f0f4ff; }
.contact__tel-note { color: rgba(255,255,255,0.7); font-size: 13px; margin-top: 10px; }
.contact__form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { color: rgba(255,255,255,0.9); font-size: 14px; font-weight: 500; }
.required {
  background: var(--accent);
  color: var(--white);
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 3px;
  margin-left: 6px;
}
.form-row input,
.form-row select,
.form-row textarea {
  padding: 12px 16px;
  border-radius: var(--radius);
  border: none;
  font-size: 15px;
  font-family: inherit;
  background: rgba(255,255,255,0.95);
  color: var(--text);
  width: 100%;
}
.form-row textarea { resize: vertical; }
.contact__form .btn--primary { align-self: center; }

/* ===== フッター ===== */
.footer {
  background: #0a1f3d;
  color: rgba(255,255,255,0.7);
  padding: 40px 0;
}
.footer__inner { text-align: center; }
.footer .logo { justify-content: center; margin-bottom: 16px; }
.footer .logo__text { color: var(--white); }
.footer__info { font-size: 13px; line-height: 2; margin-bottom: 20px; }
.footer__copy { font-size: 12px; color: rgba(255,255,255,0.4); }

/* ===== レスポンシブ ===== */
@media (max-width: 768px) {
  section { padding: 60px 0; }
  .nav a:not(.btn) { display: none; }
  .hero { padding: 110px 0 60px; }
  .hero__title { font-size: 28px; }
  .hero__sub { font-size: 15px; }
  .strengths__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: 1fr; }
  .service-item { flex-direction: column; border-left: none; border-top: 4px solid var(--primary); }
  .service-item__img { width: 100%; height: 80px; }
  .service-item__body { padding: 20px; }
  .works__stats { gap: 32px; }
  .stat__num { font-size: 38px; }
  .reviews { grid-template-columns: 1fr; }
  .about__inner { grid-template-columns: 1fr; }
  .about__img-placeholder { width: 100%; }
}