:root {
  --sumi: #1C1A18;
  --sumi-soft: #2A2724;
  --shu: #C8452A;
  --kami: #F2EDE3;
  --kami-dim: #B8B0A3;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--sumi);
  color: var(--kami);
  font-family: var(--sans);
  line-height: 1.8;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--shu);
  outline-offset: 2px;
}

/* ── ヘッダー(ロゴ) ───────────────────────── */
.site-header {
  padding: 32px 24px 0;
  text-align: center;
}
.site-header .logo-link { display: inline-block; }
.site-header img { max-width: 180px; width: 46%; margin: 0 auto; }

/* ── ヒーロー ───────────────────────── */
.hero {
  padding: 40px 24px 56px;
  text-align: center;
}
.rule { width: 48px; height: 2px; background: var(--shu); margin: 28px auto; }
.hero h1 {
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1.7;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin-bottom: 24px;
}
.hero .lead {
  font-size: 0.98rem;
  line-height: 2.1;
  color: var(--kami-dim);
  letter-spacing: 0.02em;
  max-width: 480px;
  margin: 0 auto;
}

/* ── セクション共通 ───────────────────────── */
section {
  padding: 48px 24px;
  border-top: 1px solid var(--sumi-soft);
}
section > h2 {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.15em;
  margin-bottom: 32px;
  text-align: center;
}

/* ── できること ───────────────────────── */
.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 560px;
  margin: 0 auto;
}
.feature-list .feature-term {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--shu);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.feature-list .feature-desc {
  font-size: 0.9rem;
  color: var(--kami-dim);
  line-height: 1.9;
  letter-spacing: 0.01em;
}

/* ── 料金の目安 ───────────────────────── */
.pricing { max-width: 480px; margin: 0 auto; }
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--sumi-soft);
}
.pricing .price-row:last-of-type { border-bottom: none; }
.price-label {
  font-size: 0.85rem;
  color: var(--kami-dim);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
.price-value {
  font-family: var(--serif);
  font-size: 1.05rem;
  text-align: right;
}
.price-value .price-sub {
  display: block;
  font-family: var(--sans);
  font-size: 0.72rem;
  color: var(--kami-dim);
  margin-top: 4px;
}
.price-value.price-value-text { font-size: 0.95rem; }
.pricing-note {
  margin-top: 24px;
  font-size: 0.8rem;
  color: var(--kami-dim);
  line-height: 1.9;
  letter-spacing: 0.01em;
}

/* ── 記事カード(横スクロール) ───────────────────────── */
.article-scroll-wrap { margin: 0 -24px; }
.article-scroll {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 4px 24px 12px;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
}
.article-card {
  scroll-snap-align: start;
  flex: 0 0 250px;
  min-height: 44px;
  background: var(--sumi-soft);
  border: 1px solid #3A352F;
  padding: 20px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
}
.article-card h3 {
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--kami);
}
.article-card p {
  font-size: 0.8rem;
  color: var(--kami-dim);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 16px;
}
.article-card .read-more {
  font-size: 0.78rem;
  color: var(--shu);
  letter-spacing: 0.04em;
}

/* ── 問い合わせ ───────────────────────── */
.contact-section { text-align: center; }
.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  width: 100%;
  max-width: 320px;
  padding: 14px 24px;
  border: 1px solid var(--shu);
  color: var(--kami);
  text-decoration: none;
  font-size: 1rem;
  letter-spacing: 0.06em;
  transition: background 0.2s;
}
.contact-btn:hover, .contact-btn:focus-visible {
  background: var(--sumi-soft);
}
.contact-mail {
  margin-top: 18px;
  font-size: 0.8rem;
  color: var(--kami-dim);
  letter-spacing: 0.02em;
}
.contact-mail a { text-decoration: underline; }

/* ── フッター ───────────────────────── */
footer {
  text-align: center;
  padding: 32px 24px 44px;
  font-size: 0.72rem;
  color: #6E675E;
  letter-spacing: 0.04em;
  line-height: 2;
}
footer a { color: #6E675E; text-decoration: underline; }

/* ── 記事ページ ───────────────────────── */
.article-header {
  text-align: center;
  padding: 32px 24px 0;
}
.article-header img { max-width: 150px; width: 40%; margin: 0 auto; }
.article-body {
  padding: 32px 24px 8px;
  max-width: 640px;
  margin: 0 auto;
}
.article-body h1 {
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  margin-bottom: 32px;
}
.article-body h2 {
  font-family: var(--serif);
  font-size: 0.98rem;
  letter-spacing: 0.04em;
  color: var(--shu);
  margin: 36px 0 12px;
}
.article-body h2:first-of-type { margin-top: 0; }
.article-body p {
  font-size: 0.9rem;
  color: var(--kami-dim);
  line-height: 2;
}
.article-footer {
  padding: 40px 24px 48px;
  text-align: center;
  border-top: 1px solid var(--sumi-soft);
  margin-top: 40px;
}
.other-articles {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}
.other-articles a {
  font-size: 0.85rem;
  color: var(--kami-dim);
  text-decoration: underline;
  padding: 6px 0;
}

/* ── レスポンシブ ───────────────────────── */
@media (min-width: 640px) {
  .hero h1 { font-size: 1.9rem; }
  .article-body h1 { font-size: 1.7rem; }
}