:root {
  --c-bg: #FFFFFF;
  --c-bg-soft: #F3ECF0;
  --c-text: #1C1420;
  --c-heading: #3B1E3C;
  --c-accent: #8A4A6B;
  --c-accent-deep: #7A3C63;
  --c-band: #E8C4D6;
  --c-band2: #C98BAE;
  --c-link: #B0698F;
  --font-serif: "Zen Old Mincho", "Shippori Mincho", serif;
  --font-sans: "Noto Sans JP", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.9;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--c-link); }
.container { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* ヘッダー */
.site-header { padding: 20px 0; }
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo img { height: 54px; width: auto; display: block; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--c-heading); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--c-accent); }
.nav-cta { border: 1px solid var(--c-accent); color: var(--c-accent); padding: 8px 18px; border-radius: 999px; }
.nav-cta:hover { background: var(--c-accent); color: #fff; }

/* ボタン */
.btn {
  display: inline-block;
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  padding: 16px 48px;
  transition: opacity .25s;
}
.btn:hover { opacity: .85; }
.btn-primary { background: var(--c-accent); color: #fff; }
.btn-reverse { background: #fff; color: var(--c-heading); }

/* ヒーロー */
.hero { background: var(--c-bg-soft); padding: 96px 0 104px; text-align: center; }
.hero-eyebrow { font-size: 14px; letter-spacing: .25em; color: var(--c-accent); margin-bottom: 24px; }
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.5;
  letter-spacing: .08em;
  color: var(--c-heading);
  margin-bottom: 28px;
}
.hero-lead { font-size: clamp(15px, 2.2vw, 18px); margin-bottom: 44px; }

/* セクション共通 */
.section { padding: 96px 0; }
.section-alt { background: var(--c-bg-soft); }
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 36px);
  color: var(--c-heading);
  letter-spacing: .1em;
  margin-bottom: 56px;
  position: relative;
  padding-left: 22px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 6px;
  background: linear-gradient(var(--c-band2), var(--c-band));
}
.section-title .en {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--c-accent);
  margin-bottom: 8px;
}

/* サービスカード */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card {
  background: var(--c-bg);
  border: 1px solid var(--c-band);
  border-top: 4px solid var(--c-band2);
  padding: 36px 28px;
}
.card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--c-heading);
  letter-spacing: .05em;
  margin-bottom: 16px;
}
.card p { font-size: 15px; }

/* 進め方 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; list-style: none; }
.step { background: var(--c-bg); padding: 32px 22px; text-align: center; }
.step-num {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--c-band2);
  display: block;
  margin-bottom: 12px;
}
.step h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--c-heading);
  margin-bottom: 10px;
}
.step p { font-size: 14px; text-align: left; }

/* CTA */
.cta { background: var(--c-heading); color: #fff; padding: 96px 0; text-align: center; }
.cta h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 4vw, 34px);
  letter-spacing: .08em;
  margin-bottom: 20px;
}
.cta p { margin-bottom: 40px; opacity: .9; }
.noscript-mail { margin-top: 24px; }

/* フッター */
.site-footer { background: var(--c-text); color: #fff; padding: 36px 0; text-align: center; font-size: 13px; }
.footer-logo { height: 32px; width: auto; margin-bottom: 12px; opacity: .9; }

/* フェードイン（JS有効時のみ初期非表示。JSが .is-visible を付与） */
.js .fade { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.js .fade.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .fade { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* レスポンシブ */
@media (max-width: 840px) {
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .hero { padding: 72px 0 80px; }
}
@media (max-width: 600px) {
  .pc-only { display: none; }
  .nav { gap: 14px; }
  .nav a { font-size: 13px; }
  .logo img { height: 44px; }
}