/* ── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:      #f4f1eb;
  --fg:      #1c1c1c;
  --sub:     #5a5a5a;
  --accent:  #1a5c52;
  --border:  #d4cfc5;
  --max:     760px;
}

html { font-size: 16px; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: "Helvetica Neue", "游ゴシック", "Yu Gothic", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ───────────────────────────────────────────── */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

section { border-top: 1px solid var(--border); padding: 64px 0; }
section:last-of-type { border-bottom: 1px solid var(--border); }

/* ── Typography ───────────────────────────────────────── */
h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; }
h2 { font-size: 1.25rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; color: var(--sub); margin-bottom: 32px; }
h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
p  { color: var(--sub); }
small { font-size: 0.8rem; color: var(--sub); }

/* ── Header / Hero ────────────────────────────────────── */
.hero {
  padding: 80px 0 72px;
  border-bottom: 1px solid var(--border);
}

.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  font-weight: 600;
}

.hero__title { margin-bottom: 20px; }

.hero__lead {
  font-size: 1.15rem;
  color: var(--sub);
  max-width: 520px;
  margin-bottom: 36px;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: background 0.15s, color 0.15s;
}
.btn:hover { background: var(--accent); color: var(--bg); }

/* ── Features ─────────────────────────────────────────── */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.feature__icon { font-size: 1.4rem; margin-bottom: 10px; }
.feature__name { font-weight: 700; margin-bottom: 4px; }
.feature__desc { font-size: 0.9rem; color: var(--sub); }

/* ── Steps ────────────────────────────────────────────── */
.steps { display: flex; flex-direction: column; gap: 40px; }

.step { display: grid; grid-template-columns: 2rem 1fr; gap: 0 20px; }

.step__num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  padding-top: 3px;
}

.step__title { font-weight: 700; margin-bottom: 4px; }
.step__desc { font-size: 0.9rem; color: var(--sub); }

.step__img {
  grid-column: 2;
  margin-top: 16px;
  border: 1px solid var(--border);
  background: #ede9e1;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--border);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

/* ── Feature List ─────────────────────────────────────── */
.feat-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 48px;
}

.feat-list li {
  font-size: 0.95rem;
  padding-left: 1em;
  position: relative;
  color: var(--sub);
}

.feat-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ── FAQ ──────────────────────────────────────────────── */
.faq { display: flex; flex-direction: column; gap: 28px; }

.faq__item {}
.faq__q { font-weight: 700; margin-bottom: 4px; font-size: 0.95rem; }
.faq__a { font-size: 0.9rem; color: var(--sub); }

/* ── Footer ───────────────────────────────────────────── */
footer {
  padding: 40px 0;
  text-align: center;
}

footer p { font-size: 0.8rem; color: var(--border); }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 600px) {
  .features { grid-template-columns: 1fr; gap: 24px; }
  .feat-list { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1.5rem 1fr; gap: 0 14px; }
  section { padding: 48px 0; }
  .hero { padding: 56px 0 48px; }
}