/*
  Angnails Khon Kaen — サービス別SEOページ共通スタイル
  ブランド本体（styles.css）と同じパレット/フォントで、軽量・読みやすさ重視。
*/
:root {
  --bg: #f6f1ea;
  --surface: #ffffff;
  --cream: #f1e7db;
  --ink: #2b2522;
  --muted: #6f655f;
  --line: #e8ded3;
  --rose-deep: #a4566c;
  --gold: #b89b72;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-soft: 0 12px 30px rgba(74, 50, 42, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans Thai", system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--rose-deep);
}

/* ---- ヘッダー ---- */
.seo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-family: "Playfair Display", serif;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.seo-brand svg {
  width: 28px;
  height: 28px;
}

.seo-back {
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--muted);
}

.seo-back:hover {
  color: var(--rose-deep);
}

/* ---- 本文ラッパ ---- */
.seo-main {
  max-width: 780px;
  margin: 0 auto;
  padding: clamp(36px, 7vw, 72px) clamp(20px, 5vw, 32px) 64px;
}

.seo-kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--gold);
  margin: 0 0 14px;
}

.seo-main h1 {
  font-family: "Playfair Display", "Noto Serif Thai", serif;
  font-weight: 600;
  font-size: clamp(1.9rem, 5.5vw, 2.7rem);
  line-height: 1.25;
  margin: 0 0 18px;
}

.seo-lead {
  font-size: 1.08rem;
  color: var(--ink);
  margin: 0 0 8px;
}

.seo-main h2 {
  font-family: "Playfair Display", "Noto Serif Thai", serif;
  font-weight: 600;
  font-size: clamp(1.35rem, 4vw, 1.7rem);
  margin: 44px 0 14px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.seo-main h3 {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--rose-deep);
  margin: 24px 0 6px;
}

.seo-main p {
  margin: 0 0 14px;
}

.seo-price {
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 18px 0;
  box-shadow: var(--shadow-soft);
}

.seo-price strong {
  color: var(--rose-deep);
}

/* ---- 予約CTA ---- */
.seo-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 8px;
}

.seo-cta a {
  flex: 1 1 160px;
  text-align: center;
  text-decoration: none;
  padding: 14px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.seo-cta a.is-line {
  background: var(--rose-deep);
}

.seo-cta a:hover {
  opacity: 0.92;
}

/* ---- FAQ ---- */
.seo-faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 4px 18px;
  margin: 10px 0;
}

.seo-faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 12px 0;
  list-style: none;
}

.seo-faq summary::-webkit-details-marker {
  display: none;
}

.seo-faq summary::after {
  content: "+";
  float: right;
  color: var(--gold);
  font-size: 1.3rem;
  line-height: 1;
}

.seo-faq details[open] summary::after {
  content: "–";
}

.seo-faq p {
  color: var(--muted);
  padding-bottom: 12px;
  margin: 0;
}

/* ---- フッター ---- */
.seo-footer {
  border-top: 1px solid var(--line);
  padding: 32px clamp(20px, 5vw, 56px) 48px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.seo-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin-bottom: 14px;
}

.seo-footer nav a {
  text-decoration: none;
  color: var(--ink);
}

.seo-footer nav a:hover {
  color: var(--rose-deep);
}