/* about / owner / products / koyucho の4ページで共通のテーマ変数とナビ */
:root {
  --gold-50:  #FBF6E8;
  --gold-100: #F0D98A;
  --gold-200: #D4AE3A;
  --gold-600: #9B7A00;
  --gold-800: #7A5F00;
  --gold-900: #4E3C00;
  --warm-50:  #F8F2E8;
  --warm-100: #E8D5A8;
  --warm-600: #8A6A30;
  --warm-800: #6A4E1A;
  --gray-50:  #FAFAF8;
  --gray-300: #B8B0A0;
  --gray-800: #3A3530;
  --text-main: #2C2820;
  --text-sub:  #6A6258;
  --border:    #DDD8D0;
}

body {
  font-family: 'Noto Serif JP', 'Yu Mincho', '游明朝', 'Hiragino Mincho ProN', Georgia, serif;
  color: var(--text-main);
  background: #fff;
  line-height: 1.9;
  padding-top: 92px;
}

/* ── ナビ ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  isolation: isolate;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem; height: 92px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.nav-logo img { height: 84px; width: auto; display: block; }
.nav-links { display: flex; gap: 1rem; font-size: 13px; color: var(--text-sub); white-space: nowrap; }
.nav-links a:hover { color: var(--gold-600); }
.nav-tel {
  font-size: 13px;
  background: var(--gold-600);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  white-space: nowrap;
  transition: background 0.2s;
}
.nav-tel:hover { background: var(--gold-800); }

/* ── ページヘッダー（about/owner/products/koyucho 共通） ── */
.page-header {
  position: relative;
  /* 全ページ共通の高さ（home.css の .symptoms-hero / .about-salon-hero と同値） */
  height: clamp(140px, 40vw, 420px);
  overflow: hidden;
}
.page-header img.header-bg {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  display: block;
}
.page-header::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.12);
}
.page-header-inner {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column;
  align-items: flex-start; justify-content: center;
  padding: 2rem 5% 2rem 6%;
}
.page-header .label {
  font-size: 11px; letter-spacing: 0.22em;
  color: var(--gold-800); margin-bottom: 0.8rem;
  display: block; font-family: 'Noto Sans JP', sans-serif; font-weight: 700;
}
.page-header h1 {
  font-size: clamp(20px, 4vw, 30px); font-weight: 700;
  letter-spacing: 0.08em; line-height: 1.6;
  color: var(--gold-900);
  text-shadow: 0 1px 8px rgba(255,255,255,0.8);
}
.page-header .divider {
  width: 40px; height: 1.5px;
  background: var(--gold-200);
  margin-top: 1rem;
}